/** * \file libmtp.c * * Copyright (C) 2005-2011 Linus Walleij * Copyright (C) 2005-2008 Richard A. Low * Copyright (C) 2007 Ted Bullock * Copyright (C) 2007 Tero Saarni * Copyright (C) 2008 Florent Mertens * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * * This file provides an interface "glue" to the underlying * PTP implementation from libgphoto2. It uses some local * code to convert from/to UTF-8 (stored in unicode.c/.h) * and some small utility functions, mainly for debugging * (stored in util.c/.h). * * The three PTP files (ptp.c, ptp.h and ptp-pack.c) are * plain copied from the libhphoto2 codebase. * * The files libusb-glue.c/.h are just what they say: an * interface to libusb for the actual, physical USB traffic. */ #include "config.h" #include "libmtp.h" #include "unicode.h" #include "ptp.h" #include "libusb-glue.h" #include "device-flags.h" #include "playlist-spl.h" #include "util.h" #include "mtpz.h" int use_mtpz; #include #include #include #include #include #include #include #include #include #include #ifdef _MSC_VER // For MSVC++ #define USE_WINDOWS_IO_H #include #endif /** * Global debug level * We use a flag system to enable a part of logs. * * The LIBMTP_DEBUG environment variable sets the debug flags for any binary * that uses libmtp and calls LIBMTP_Init. The value can be given in decimal * (must not start with "0" or it will be interpreted in octal), or in * hexadecimal (must start with "0x"). * * The value "-1" enables all debug flags. * * Some of the utilities in examples/ also take a command-line flag "-d" that * enables LIBMTP_DEBUG_PTP and LIBMTP_DEBUG_DATA (same as setting * LIBMTP_DEBUG=9). * * Flags (combine by adding the hex values): * 0x00 [0000 0000] : LIBMTP_DEBUG_NONE : no debug (default) * 0x01 [0000 0001] : LIBMTP_DEBUG_PTP : PTP debug * 0x02 [0000 0010] : LIBMTP_DEBUG_PLST : Playlist debug * 0x04 [0000 0100] : LIBMTP_DEBUG_USB : USB debug * 0x08 [0000 1000] : LIBMTP_DEBUG_DATA : USB data debug * * (Please keep this list in sync with libmtp.h.) */ int LIBMTP_debug = LIBMTP_DEBUG_NONE; /* * This is a mapping between libmtp internal MTP filetypes and * the libgphoto2/PTP equivalent defines. We need this because * otherwise the libmtp.h device has to be dependent on ptp.h * to be installed too, and we don't want that. */ //typedef struct filemap_struct filemap_t; typedef struct filemap_struct { char *description; /**< Text description for the file type */ LIBMTP_filetype_t id; /**< LIBMTP internal type for the file type */ uint16_t ptp_id; /**< PTP ID for the filetype */ struct filemap_struct *next; } filemap_t; /* * This is a mapping between libmtp internal MTP properties and * the libgphoto2/PTP equivalent defines. We need this because * otherwise the libmtp.h device has to be dependent on ptp.h * to be installed too, and we don't want that. */ typedef struct propertymap_struct { char *description; /**< Text description for the property */ LIBMTP_property_t id; /**< LIBMTP internal type for the property */ uint16_t ptp_id; /**< PTP ID for the property */ struct propertymap_struct *next; } propertymap_t; /* * This is a simple container for holding our callback and user_data * for parsing onwards to the usb_event_async function. */ typedef struct event_cb_data_struct { LIBMTP_event_cb_fn cb; void *user_data; } event_cb_data_t; // Global variables // This holds the global filetype mapping table static filemap_t *g_filemap = NULL; // This holds the global property mapping table static propertymap_t *g_propertymap = NULL; /* * Forward declarations of local (static) functions. */ static int register_filetype(char const * const description, LIBMTP_filetype_t const id, uint16_t const ptp_id); static void init_filemap(); static int register_property(char const * const description, LIBMTP_property_t const id, uint16_t const ptp_id); static void init_propertymap(); static void add_error_to_errorstack(LIBMTP_mtpdevice_t *device, LIBMTP_error_number_t errornumber, char const * const error_text); static void add_ptp_error_to_errorstack(LIBMTP_mtpdevice_t *device, uint16_t ptp_error, char const * const error_text); static void flush_handles(LIBMTP_mtpdevice_t *device); static uint16_t get_handles_recursively(LIBMTP_mtpdevice_t *device, PTPParams *params, uint32_t storageid, uint32_t parent); static void free_storage_list(LIBMTP_mtpdevice_t *device); static int sort_storage_by(LIBMTP_mtpdevice_t *device, int const sortby); static uint32_t get_writeable_storageid(LIBMTP_mtpdevice_t *device, uint64_t fitsize); static int get_storage_freespace(LIBMTP_mtpdevice_t *device, LIBMTP_devicestorage_t *storage, uint64_t *freespace); static int check_if_file_fits(LIBMTP_mtpdevice_t *device, LIBMTP_devicestorage_t *storage, uint64_t const filesize); static uint16_t map_libmtp_type_to_ptp_type(LIBMTP_filetype_t intype); static LIBMTP_filetype_t map_ptp_type_to_libmtp_type(uint16_t intype); static uint16_t map_libmtp_property_to_ptp_property(LIBMTP_property_t inproperty); static LIBMTP_property_t map_ptp_property_to_libmtp_property(uint16_t intype); static int get_device_unicode_property(LIBMTP_mtpdevice_t *device, char **unicstring, uint16_t property); static uint16_t adjust_u16(uint16_t val, PTPObjectPropDesc *opd); static uint32_t adjust_u32(uint32_t val, PTPObjectPropDesc *opd); static char *get_iso8601_stamp(void); static char *get_string_from_object(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id); static uint64_t get_u64_from_object(LIBMTP_mtpdevice_t *device,uint32_t const object_id, uint16_t const attribute_id, uint64_t const value_default); static uint32_t get_u32_from_object(LIBMTP_mtpdevice_t *device,uint32_t const object_id, uint16_t const attribute_id, uint32_t const value_default); static uint16_t get_u16_from_object(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, uint16_t const value_default); static uint8_t get_u8_from_object(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, uint8_t const value_default); static int set_object_string(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, char const * const string); static int set_object_u32(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, uint32_t const value); static int set_object_u16(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, uint16_t const value); static int set_object_u8(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, uint8_t const value); static void get_track_metadata(LIBMTP_mtpdevice_t *device, uint16_t objectformat, LIBMTP_track_t *track); static LIBMTP_folder_t *get_subfolders_for_folder(LIBMTP_folder_t *list, uint32_t parent); static int create_new_abstract_list(LIBMTP_mtpdevice_t *device, char const * const name, char const * const artist, char const * const composer, char const * const genre, uint32_t const parenthandle, uint32_t const storageid, uint16_t const objectformat, char const * const suffix, uint32_t * const newid, uint32_t const * const tracks, uint32_t const no_tracks); static int update_abstract_list(LIBMTP_mtpdevice_t *device, char const * const name, char const * const artist, char const * const composer, char const * const genre, uint32_t const objecthandle, uint16_t const objectformat, uint32_t const * const tracks, uint32_t const no_tracks); static int send_file_object_info(LIBMTP_mtpdevice_t *device, LIBMTP_file_t *filedata); static void add_object_to_cache(LIBMTP_mtpdevice_t *device, uint32_t object_id); static void update_metadata_cache(LIBMTP_mtpdevice_t *device, uint32_t object_id); static int set_object_filename(LIBMTP_mtpdevice_t *device, uint32_t object_id, uint16_t ptp_type, const char **newname); static char *generate_unique_filename(PTPParams* params, char const * const filename); static int check_filename_exists(PTPParams* params, char const * const filename); static void LIBMTP_Handle_Event(PTPContainer *ptp_event, LIBMTP_event_t *event, uint32_t *out1); /** * These are to wrap the get/put handlers to convert from the MTP types to PTP types * in a reliable way */ typedef struct _MTPDataHandler { MTPDataGetFunc getfunc; MTPDataPutFunc putfunc; void *priv; } MTPDataHandler; static uint16_t get_func_wrapper(PTPParams* params, void* priv, unsigned long wantlen, unsigned char *data, unsigned long *gotlen); static uint16_t put_func_wrapper(PTPParams* params, void* priv, unsigned long sendlen, unsigned char *data); /** * Checks if a filename ends with ".ogg". Used in various * situations when the device has no idea that it support * OGG but still does. * * @param name string to be checked. * @return 0 if this does not end with ogg, any other * value means it does. */ static int has_ogg_extension(char *name) { char *ptype; if (name == NULL) return 0; ptype = strrchr(name,'.'); if (ptype == NULL) return 0; if (!strcasecmp (ptype, ".ogg")) return 1; return 0; } /** * Checks if a filename ends with ".flac". Used in various * situations when the device has no idea that it support * FLAC but still does. * * @param name string to be checked. * @return 0 if this does not end with flac, any other * value means it does. */ static int has_flac_extension(char *name) { char *ptype; if (name == NULL) return 0; ptype = strrchr(name,'.'); if (ptype == NULL) return 0; if (!strcasecmp (ptype, ".flac")) return 1; return 0; } /** * Create a new file mapping entry * @return a newly allocated filemapping entry. */ static filemap_t *new_filemap_entry() { filemap_t *filemap; filemap = (filemap_t *)malloc(sizeof(filemap_t)); if( filemap != NULL ) { filemap->description = NULL; filemap->id = LIBMTP_FILETYPE_UNKNOWN; filemap->ptp_id = PTP_OFC_Undefined; filemap->next = NULL; } return filemap; } /** * Register an MTP or PTP filetype for data retrieval * * @param description Text description of filetype * @param id libmtp internal filetype id * @param ptp_id PTP filetype id * @return 0 for success any other value means error. */ static int register_filetype(char const * const description, LIBMTP_filetype_t const id, uint16_t const ptp_id) { filemap_t *new = NULL, *current; // Has this LIBMTP filetype been registered before ? current = g_filemap; while (current != NULL) { if(current->id == id) { break; } current = current->next; } // Create the entry if(current == NULL) { new = new_filemap_entry(); if(new == NULL) { return 1; } new->id = id; if(description != NULL) { new->description = strdup(description); } new->ptp_id = ptp_id; // Add the entry to the list if(g_filemap == NULL) { g_filemap = new; } else { current = g_filemap; while (current->next != NULL ) current=current->next; current->next = new; } // Update the existing entry } else { if (current->description != NULL) { free(current->description); } current->description = NULL; if(description != NULL) { current->description = strdup(description); } current->ptp_id = ptp_id; } return 0; } static void init_filemap() { register_filetype("Folder", LIBMTP_FILETYPE_FOLDER, PTP_OFC_Association); register_filetype("MediaCard", LIBMTP_FILETYPE_MEDIACARD, PTP_OFC_MTP_MediaCard); register_filetype("RIFF WAVE file", LIBMTP_FILETYPE_WAV, PTP_OFC_WAV); register_filetype("ISO MPEG-1 Audio Layer 3", LIBMTP_FILETYPE_MP3, PTP_OFC_MP3); register_filetype("ISO MPEG-1 Audio Layer 2", LIBMTP_FILETYPE_MP2, PTP_OFC_MTP_MP2); register_filetype("Microsoft Windows Media Audio", LIBMTP_FILETYPE_WMA, PTP_OFC_MTP_WMA); register_filetype("Ogg container format", LIBMTP_FILETYPE_OGG, PTP_OFC_MTP_OGG); register_filetype("Free Lossless Audio Codec (FLAC)", LIBMTP_FILETYPE_FLAC, PTP_OFC_MTP_FLAC); register_filetype("Advanced Audio Coding (AAC)/MPEG-2 Part 7/MPEG-4 Part 3", LIBMTP_FILETYPE_AAC, PTP_OFC_MTP_AAC); register_filetype("MPEG-4 Part 14 Container Format (Audio Emphasis)", LIBMTP_FILETYPE_M4A, PTP_OFC_MTP_M4A); register_filetype("MPEG-4 Part 14 Container Format (Audio+Video Emphasis)", LIBMTP_FILETYPE_MP4, PTP_OFC_MTP_MP4); register_filetype("Audible.com Audio Codec", LIBMTP_FILETYPE_AUDIBLE, PTP_OFC_MTP_AudibleCodec); register_filetype("Undefined audio file", LIBMTP_FILETYPE_UNDEF_AUDIO, PTP_OFC_MTP_UndefinedAudio); register_filetype("Microsoft Windows Media Video", LIBMTP_FILETYPE_WMV, PTP_OFC_MTP_WMV); register_filetype("Audio Video Interleave", LIBMTP_FILETYPE_AVI, PTP_OFC_AVI); register_filetype("MPEG video stream", LIBMTP_FILETYPE_MPEG, PTP_OFC_MPEG); register_filetype("Microsoft Advanced Systems Format", LIBMTP_FILETYPE_ASF, PTP_OFC_ASF); register_filetype("Apple Quicktime container format", LIBMTP_FILETYPE_QT, PTP_OFC_QT); register_filetype("Undefined video file", LIBMTP_FILETYPE_UNDEF_VIDEO, PTP_OFC_MTP_UndefinedVideo); register_filetype("JPEG file", LIBMTP_FILETYPE_JPEG, PTP_OFC_EXIF_JPEG); register_filetype("JP2 file", LIBMTP_FILETYPE_JP2, PTP_OFC_JP2); register_filetype("JPX file", LIBMTP_FILETYPE_JPX, PTP_OFC_JPX); register_filetype("JFIF file", LIBMTP_FILETYPE_JFIF, PTP_OFC_JFIF); register_filetype("TIFF bitmap file", LIBMTP_FILETYPE_TIFF, PTP_OFC_TIFF); register_filetype("BMP bitmap file", LIBMTP_FILETYPE_BMP, PTP_OFC_BMP); register_filetype("GIF bitmap file", LIBMTP_FILETYPE_GIF, PTP_OFC_GIF); register_filetype("PICT bitmap file", LIBMTP_FILETYPE_PICT, PTP_OFC_PICT); register_filetype("Portable Network Graphics", LIBMTP_FILETYPE_PNG, PTP_OFC_PNG); register_filetype("Microsoft Windows Image Format", LIBMTP_FILETYPE_WINDOWSIMAGEFORMAT, PTP_OFC_MTP_WindowsImageFormat); register_filetype("VCalendar version 1", LIBMTP_FILETYPE_VCALENDAR1, PTP_OFC_MTP_vCalendar1); register_filetype("VCalendar version 2", LIBMTP_FILETYPE_VCALENDAR2, PTP_OFC_MTP_vCalendar2); register_filetype("VCard version 2", LIBMTP_FILETYPE_VCARD2, PTP_OFC_MTP_vCard2); register_filetype("VCard version 3", LIBMTP_FILETYPE_VCARD3, PTP_OFC_MTP_vCard3); register_filetype("Undefined Windows executable file", LIBMTP_FILETYPE_WINEXEC, PTP_OFC_MTP_UndefinedWindowsExecutable); register_filetype("Text file", LIBMTP_FILETYPE_TEXT, PTP_OFC_Text); register_filetype("HTML file", LIBMTP_FILETYPE_HTML, PTP_OFC_HTML); register_filetype("XML file", LIBMTP_FILETYPE_XML, PTP_OFC_MTP_XMLDocument); register_filetype("DOC file", LIBMTP_FILETYPE_DOC, PTP_OFC_MTP_MSWordDocument); register_filetype("XLS file", LIBMTP_FILETYPE_XLS, PTP_OFC_MTP_MSExcelSpreadsheetXLS); register_filetype("PPT file", LIBMTP_FILETYPE_PPT, PTP_OFC_MTP_MSPowerpointPresentationPPT); register_filetype("MHT file", LIBMTP_FILETYPE_MHT, PTP_OFC_MTP_MHTCompiledHTMLDocument); register_filetype("Firmware file", LIBMTP_FILETYPE_FIRMWARE, PTP_OFC_MTP_Firmware); register_filetype("Abstract Album file", LIBMTP_FILETYPE_ALBUM, PTP_OFC_MTP_AbstractAudioAlbum); register_filetype("Abstract Playlist file", LIBMTP_FILETYPE_PLAYLIST, PTP_OFC_MTP_AbstractAudioVideoPlaylist); register_filetype("Undefined filetype", LIBMTP_FILETYPE_UNKNOWN, PTP_OFC_Undefined); } /** * Returns the PTP filetype that maps to a certain libmtp internal file type. * @param intype the MTP library interface type * @return the PTP (libgphoto2) interface type */ static uint16_t map_libmtp_type_to_ptp_type(LIBMTP_filetype_t intype) { filemap_t *current; current = g_filemap; while (current != NULL) { if(current->id == intype) { return current->ptp_id; } current = current->next; } // printf("map_libmtp_type_to_ptp_type: unknown filetype.\n"); return PTP_OFC_Undefined; } /** * Returns the MTP internal interface type that maps to a certain ptp * interface type. * @param intype the PTP (libgphoto2) interface type * @return the MTP library interface type */ static LIBMTP_filetype_t map_ptp_type_to_libmtp_type(uint16_t intype) { filemap_t *current; current = g_filemap; while (current != NULL) { if(current->ptp_id == intype) { return current->id; } current = current->next; } // printf("map_ptp_type_to_libmtp_type: unknown filetype.\n"); return LIBMTP_FILETYPE_UNKNOWN; } /** * Create a new property mapping entry * @return a newly allocated propertymapping entry. */ static propertymap_t *new_propertymap_entry() { propertymap_t *propertymap; propertymap = (propertymap_t *)malloc(sizeof(propertymap_t)); if( propertymap != NULL ) { propertymap->description = NULL; propertymap->id = LIBMTP_PROPERTY_UNKNOWN; propertymap->ptp_id = 0; propertymap->next = NULL; } return propertymap; } /** * Register an MTP or PTP property for data retrieval * * @param description Text description of property * @param id libmtp internal property id * @param ptp_id PTP property id * @return 0 for success any other value means error. */ static int register_property(char const * const description, LIBMTP_property_t const id, uint16_t const ptp_id) { propertymap_t *new = NULL, *current; // Has this LIBMTP propety been registered before ? current = g_propertymap; while (current != NULL) { if(current->id == id) { break; } current = current->next; } // Create the entry if(current == NULL) { new = new_propertymap_entry(); if(new == NULL) { return 1; } new->id = id; if(description != NULL) { new->description = strdup(description); } new->ptp_id = ptp_id; // Add the entry to the list if(g_propertymap == NULL) { g_propertymap = new; } else { current = g_propertymap; while (current->next != NULL ) current=current->next; current->next = new; } // Update the existing entry } else { if (current->description != NULL) { free(current->description); } current->description = NULL; if(description != NULL) { current->description = strdup(description); } current->ptp_id = ptp_id; } return 0; } static void init_propertymap() { register_property("Storage ID", LIBMTP_PROPERTY_StorageID, PTP_OPC_StorageID); register_property("Object Format", LIBMTP_PROPERTY_ObjectFormat, PTP_OPC_ObjectFormat); register_property("Protection Status", LIBMTP_PROPERTY_ProtectionStatus, PTP_OPC_ProtectionStatus); register_property("Object Size", LIBMTP_PROPERTY_ObjectSize, PTP_OPC_ObjectSize); register_property("Association Type", LIBMTP_PROPERTY_AssociationType, PTP_OPC_AssociationType); register_property("Association Desc", LIBMTP_PROPERTY_AssociationDesc, PTP_OPC_AssociationDesc); register_property("Object File Name", LIBMTP_PROPERTY_ObjectFileName, PTP_OPC_ObjectFileName); register_property("Date Created", LIBMTP_PROPERTY_DateCreated, PTP_OPC_DateCreated); register_property("Date Modified", LIBMTP_PROPERTY_DateModified, PTP_OPC_DateModified); register_property("Keywords", LIBMTP_PROPERTY_Keywords, PTP_OPC_Keywords); register_property("Parent Object", LIBMTP_PROPERTY_ParentObject, PTP_OPC_ParentObject); register_property("Allowed Folder Contents", LIBMTP_PROPERTY_AllowedFolderContents, PTP_OPC_AllowedFolderContents); register_property("Hidden", LIBMTP_PROPERTY_Hidden, PTP_OPC_Hidden); register_property("System Object", LIBMTP_PROPERTY_SystemObject, PTP_OPC_SystemObject); register_property("Persistant Unique Object Identifier", LIBMTP_PROPERTY_PersistantUniqueObjectIdentifier, PTP_OPC_PersistantUniqueObjectIdentifier); register_property("Sync ID", LIBMTP_PROPERTY_SyncID, PTP_OPC_SyncID); register_property("Property Bag", LIBMTP_PROPERTY_PropertyBag, PTP_OPC_PropertyBag); register_property("Name", LIBMTP_PROPERTY_Name, PTP_OPC_Name); register_property("Created By", LIBMTP_PROPERTY_CreatedBy, PTP_OPC_CreatedBy); register_property("Artist", LIBMTP_PROPERTY_Artist, PTP_OPC_Artist); register_property("Date Authored", LIBMTP_PROPERTY_DateAuthored, PTP_OPC_DateAuthored); register_property("Description", LIBMTP_PROPERTY_Description, PTP_OPC_Description); register_property("URL Reference", LIBMTP_PROPERTY_URLReference, PTP_OPC_URLReference); register_property("Language Locale", LIBMTP_PROPERTY_LanguageLocale, PTP_OPC_LanguageLocale); register_property("Copyright Information", LIBMTP_PROPERTY_CopyrightInformation, PTP_OPC_CopyrightInformation); register_property("Source", LIBMTP_PROPERTY_Source, PTP_OPC_Source); register_property("Origin Location", LIBMTP_PROPERTY_OriginLocation, PTP_OPC_OriginLocation); register_property("Date Added", LIBMTP_PROPERTY_DateAdded, PTP_OPC_DateAdded); register_property("Non Consumable", LIBMTP_PROPERTY_NonConsumable, PTP_OPC_NonConsumable); register_property("Corrupt Or Unplayable", LIBMTP_PROPERTY_CorruptOrUnplayable, PTP_OPC_CorruptOrUnplayable); register_property("Producer Serial Number", LIBMTP_PROPERTY_ProducerSerialNumber, PTP_OPC_ProducerSerialNumber); register_property("Representative Sample Format", LIBMTP_PROPERTY_RepresentativeSampleFormat, PTP_OPC_RepresentativeSampleFormat); register_property("Representative Sample Sise", LIBMTP_PROPERTY_RepresentativeSampleSize, PTP_OPC_RepresentativeSampleSize); register_property("Representative Sample Height", LIBMTP_PROPERTY_RepresentativeSampleHeight, PTP_OPC_RepresentativeSampleHeight); register_property("Representative Sample Width", LIBMTP_PROPERTY_RepresentativeSampleWidth, PTP_OPC_RepresentativeSampleWidth); register_property("Representative Sample Duration", LIBMTP_PROPERTY_RepresentativeSampleDuration, PTP_OPC_RepresentativeSampleDuration); register_property("Representative Sample Data", LIBMTP_PROPERTY_RepresentativeSampleData, PTP_OPC_RepresentativeSampleData); register_property("Width", LIBMTP_PROPERTY_Width, PTP_OPC_Width); register_property("Height", LIBMTP_PROPERTY_Height, PTP_OPC_Height); register_property("Duration", LIBMTP_PROPERTY_Duration, PTP_OPC_Duration); register_property("Rating", LIBMTP_PROPERTY_Rating, PTP_OPC_Rating); register_property("Track", LIBMTP_PROPERTY_Track, PTP_OPC_Track); register_property("Genre", LIBMTP_PROPERTY_Genre, PTP_OPC_Genre); register_property("Credits", LIBMTP_PROPERTY_Credits, PTP_OPC_Credits); register_property("Lyrics", LIBMTP_PROPERTY_Lyrics, PTP_OPC_Lyrics); register_property("Subscription Content ID", LIBMTP_PROPERTY_SubscriptionContentID, PTP_OPC_SubscriptionContentID); register_property("Produced By", LIBMTP_PROPERTY_ProducedBy, PTP_OPC_ProducedBy); register_property("Use Count", LIBMTP_PROPERTY_UseCount, PTP_OPC_UseCount); register_property("Skip Count", LIBMTP_PROPERTY_SkipCount, PTP_OPC_SkipCount); register_property("Last Accessed", LIBMTP_PROPERTY_LastAccessed, PTP_OPC_LastAccessed); register_property("Parental Rating", LIBMTP_PROPERTY_ParentalRating, PTP_OPC_ParentalRating); register_property("Meta Genre", LIBMTP_PROPERTY_MetaGenre, PTP_OPC_MetaGenre); register_property("Composer", LIBMTP_PROPERTY_Composer, PTP_OPC_Composer); register_property("Effective Rating", LIBMTP_PROPERTY_EffectiveRating, PTP_OPC_EffectiveRating); register_property("Subtitle", LIBMTP_PROPERTY_Subtitle, PTP_OPC_Subtitle); register_property("Original Release Date", LIBMTP_PROPERTY_OriginalReleaseDate, PTP_OPC_OriginalReleaseDate); register_property("Album Name", LIBMTP_PROPERTY_AlbumName, PTP_OPC_AlbumName); register_property("Album Artist", LIBMTP_PROPERTY_AlbumArtist, PTP_OPC_AlbumArtist); register_property("Mood", LIBMTP_PROPERTY_Mood, PTP_OPC_Mood); register_property("DRM Status", LIBMTP_PROPERTY_DRMStatus, PTP_OPC_DRMStatus); register_property("Sub Description", LIBMTP_PROPERTY_SubDescription, PTP_OPC_SubDescription); register_property("Is Cropped", LIBMTP_PROPERTY_IsCropped, PTP_OPC_IsCropped); register_property("Is Color Corrected", LIBMTP_PROPERTY_IsColorCorrected, PTP_OPC_IsColorCorrected); register_property("Image Bit Depth", LIBMTP_PROPERTY_ImageBitDepth, PTP_OPC_ImageBitDepth); register_property("f Number", LIBMTP_PROPERTY_Fnumber, PTP_OPC_Fnumber); register_property("Exposure Time", LIBMTP_PROPERTY_ExposureTime, PTP_OPC_ExposureTime); register_property("Exposure Index", LIBMTP_PROPERTY_ExposureIndex, PTP_OPC_ExposureIndex); register_property("Display Name", LIBMTP_PROPERTY_DisplayName, PTP_OPC_DisplayName); register_property("Body Text", LIBMTP_PROPERTY_BodyText, PTP_OPC_BodyText); register_property("Subject", LIBMTP_PROPERTY_Subject, PTP_OPC_Subject); register_property("Priority", LIBMTP_PROPERTY_Priority, PTP_OPC_Priority); register_property("Given Name", LIBMTP_PROPERTY_GivenName, PTP_OPC_GivenName); register_property("Middle Names", LIBMTP_PROPERTY_MiddleNames, PTP_OPC_MiddleNames); register_property("Family Name", LIBMTP_PROPERTY_FamilyName, PTP_OPC_FamilyName); register_property("Prefix", LIBMTP_PROPERTY_Prefix, PTP_OPC_Prefix); register_property("Suffix", LIBMTP_PROPERTY_Suffix, PTP_OPC_Suffix); register_property("Phonetic Given Name", LIBMTP_PROPERTY_PhoneticGivenName, PTP_OPC_PhoneticGivenName); register_property("Phonetic Family Name", LIBMTP_PROPERTY_PhoneticFamilyName, PTP_OPC_PhoneticFamilyName); register_property("Email: Primary", LIBMTP_PROPERTY_EmailPrimary, PTP_OPC_EmailPrimary); register_property("Email: Personal 1", LIBMTP_PROPERTY_EmailPersonal1, PTP_OPC_EmailPersonal1); register_property("Email: Personal 2", LIBMTP_PROPERTY_EmailPersonal2, PTP_OPC_EmailPersonal2); register_property("Email: Business 1", LIBMTP_PROPERTY_EmailBusiness1, PTP_OPC_EmailBusiness1); register_property("Email: Business 2", LIBMTP_PROPERTY_EmailBusiness2, PTP_OPC_EmailBusiness2); register_property("Email: Others", LIBMTP_PROPERTY_EmailOthers, PTP_OPC_EmailOthers); register_property("Phone Number: Primary", LIBMTP_PROPERTY_PhoneNumberPrimary, PTP_OPC_PhoneNumberPrimary); register_property("Phone Number: Personal", LIBMTP_PROPERTY_PhoneNumberPersonal, PTP_OPC_PhoneNumberPersonal); register_property("Phone Number: Personal 2", LIBMTP_PROPERTY_PhoneNumberPersonal2, PTP_OPC_PhoneNumberPersonal2); register_property("Phone Number: Business", LIBMTP_PROPERTY_PhoneNumberBusiness, PTP_OPC_PhoneNumberBusiness); register_property("Phone Number: Business 2", LIBMTP_PROPERTY_PhoneNumberBusiness2, PTP_OPC_PhoneNumberBusiness2); register_property("Phone Number: Mobile", LIBMTP_PROPERTY_PhoneNumberMobile, PTP_OPC_PhoneNumberMobile); register_property("Phone Number: Mobile 2", LIBMTP_PROPERTY_PhoneNumberMobile2, PTP_OPC_PhoneNumberMobile2); register_property("Fax Number: Primary", LIBMTP_PROPERTY_FaxNumberPrimary, PTP_OPC_FaxNumberPrimary); register_property("Fax Number: Personal", LIBMTP_PROPERTY_FaxNumberPersonal, PTP_OPC_FaxNumberPersonal); register_property("Fax Number: Business", LIBMTP_PROPERTY_FaxNumberBusiness, PTP_OPC_FaxNumberBusiness); register_property("Pager Number", LIBMTP_PROPERTY_PagerNumber, PTP_OPC_PagerNumber); register_property("Phone Number: Others", LIBMTP_PROPERTY_PhoneNumberOthers, PTP_OPC_PhoneNumberOthers); register_property("Primary Web Address", LIBMTP_PROPERTY_PrimaryWebAddress, PTP_OPC_PrimaryWebAddress); register_property("Personal Web Address", LIBMTP_PROPERTY_PersonalWebAddress, PTP_OPC_PersonalWebAddress); register_property("Business Web Address", LIBMTP_PROPERTY_BusinessWebAddress, PTP_OPC_BusinessWebAddress); register_property("Instant Messenger Address 1", LIBMTP_PROPERTY_InstantMessengerAddress, PTP_OPC_InstantMessengerAddress); register_property("Instant Messenger Address 2", LIBMTP_PROPERTY_InstantMessengerAddress2, PTP_OPC_InstantMessengerAddress2); register_property("Instant Messenger Address 3", LIBMTP_PROPERTY_InstantMessengerAddress3, PTP_OPC_InstantMessengerAddress3); register_property("Postal Address: Personal: Full", LIBMTP_PROPERTY_PostalAddressPersonalFull, PTP_OPC_PostalAddressPersonalFull); register_property("Postal Address: Personal: Line 1", LIBMTP_PROPERTY_PostalAddressPersonalFullLine1, PTP_OPC_PostalAddressPersonalFullLine1); register_property("Postal Address: Personal: Line 2", LIBMTP_PROPERTY_PostalAddressPersonalFullLine2, PTP_OPC_PostalAddressPersonalFullLine2); register_property("Postal Address: Personal: City", LIBMTP_PROPERTY_PostalAddressPersonalFullCity, PTP_OPC_PostalAddressPersonalFullCity); register_property("Postal Address: Personal: Region", LIBMTP_PROPERTY_PostalAddressPersonalFullRegion, PTP_OPC_PostalAddressPersonalFullRegion); register_property("Postal Address: Personal: Postal Code", LIBMTP_PROPERTY_PostalAddressPersonalFullPostalCode, PTP_OPC_PostalAddressPersonalFullPostalCode); register_property("Postal Address: Personal: Country", LIBMTP_PROPERTY_PostalAddressPersonalFullCountry, PTP_OPC_PostalAddressPersonalFullCountry); register_property("Postal Address: Business: Full", LIBMTP_PROPERTY_PostalAddressBusinessFull, PTP_OPC_PostalAddressBusinessFull); register_property("Postal Address: Business: Line 1", LIBMTP_PROPERTY_PostalAddressBusinessLine1, PTP_OPC_PostalAddressBusinessLine1); register_property("Postal Address: Business: Line 2", LIBMTP_PROPERTY_PostalAddressBusinessLine2, PTP_OPC_PostalAddressBusinessLine2); register_property("Postal Address: Business: City", LIBMTP_PROPERTY_PostalAddressBusinessCity, PTP_OPC_PostalAddressBusinessCity); register_property("Postal Address: Business: Region", LIBMTP_PROPERTY_PostalAddressBusinessRegion, PTP_OPC_PostalAddressBusinessRegion); register_property("Postal Address: Business: Postal Code", LIBMTP_PROPERTY_PostalAddressBusinessPostalCode, PTP_OPC_PostalAddressBusinessPostalCode); register_property("Postal Address: Business: Country", LIBMTP_PROPERTY_PostalAddressBusinessCountry, PTP_OPC_PostalAddressBusinessCountry); register_property("Postal Address: Other: Full", LIBMTP_PROPERTY_PostalAddressOtherFull, PTP_OPC_PostalAddressOtherFull); register_property("Postal Address: Other: Line 1", LIBMTP_PROPERTY_PostalAddressOtherLine1, PTP_OPC_PostalAddressOtherLine1); register_property("Postal Address: Other: Line 2", LIBMTP_PROPERTY_PostalAddressOtherLine2, PTP_OPC_PostalAddressOtherLine2); register_property("Postal Address: Other: City", LIBMTP_PROPERTY_PostalAddressOtherCity, PTP_OPC_PostalAddressOtherCity); register_property("Postal Address: Other: Region", LIBMTP_PROPERTY_PostalAddressOtherRegion, PTP_OPC_PostalAddressOtherRegion); register_property("Postal Address: Other: Postal Code", LIBMTP_PROPERTY_PostalAddressOtherPostalCode, PTP_OPC_PostalAddressOtherPostalCode); register_property("Postal Address: Other: Counrtry", LIBMTP_PROPERTY_PostalAddressOtherCountry, PTP_OPC_PostalAddressOtherCountry); register_property("Organization Name", LIBMTP_PROPERTY_OrganizationName, PTP_OPC_OrganizationName); register_property("Phonetic Organization Name", LIBMTP_PROPERTY_PhoneticOrganizationName, PTP_OPC_PhoneticOrganizationName); register_property("Role", LIBMTP_PROPERTY_Role, PTP_OPC_Role); register_property("Birthdate", LIBMTP_PROPERTY_Birthdate, PTP_OPC_Birthdate); register_property("Message To", LIBMTP_PROPERTY_MessageTo, PTP_OPC_MessageTo); register_property("Message CC", LIBMTP_PROPERTY_MessageCC, PTP_OPC_MessageCC); register_property("Message BCC", LIBMTP_PROPERTY_MessageBCC, PTP_OPC_MessageBCC); register_property("Message Read", LIBMTP_PROPERTY_MessageRead, PTP_OPC_MessageRead); register_property("Message Received Time", LIBMTP_PROPERTY_MessageReceivedTime, PTP_OPC_MessageReceivedTime); register_property("Message Sender", LIBMTP_PROPERTY_MessageSender, PTP_OPC_MessageSender); register_property("Activity Begin Time", LIBMTP_PROPERTY_ActivityBeginTime, PTP_OPC_ActivityBeginTime); register_property("Activity End Time", LIBMTP_PROPERTY_ActivityEndTime, PTP_OPC_ActivityEndTime); register_property("Activity Location", LIBMTP_PROPERTY_ActivityLocation, PTP_OPC_ActivityLocation); register_property("Activity Required Attendees", LIBMTP_PROPERTY_ActivityRequiredAttendees, PTP_OPC_ActivityRequiredAttendees); register_property("Optional Attendees", LIBMTP_PROPERTY_ActivityOptionalAttendees, PTP_OPC_ActivityOptionalAttendees); register_property("Activity Resources", LIBMTP_PROPERTY_ActivityResources, PTP_OPC_ActivityResources); register_property("Activity Accepted", LIBMTP_PROPERTY_ActivityAccepted, PTP_OPC_ActivityAccepted); register_property("Owner", LIBMTP_PROPERTY_Owner, PTP_OPC_Owner); register_property("Editor", LIBMTP_PROPERTY_Editor, PTP_OPC_Editor); register_property("Webmaster", LIBMTP_PROPERTY_Webmaster, PTP_OPC_Webmaster); register_property("URL Source", LIBMTP_PROPERTY_URLSource, PTP_OPC_URLSource); register_property("URL Destination", LIBMTP_PROPERTY_URLDestination, PTP_OPC_URLDestination); register_property("Time Bookmark", LIBMTP_PROPERTY_TimeBookmark, PTP_OPC_TimeBookmark); register_property("Object Bookmark", LIBMTP_PROPERTY_ObjectBookmark, PTP_OPC_ObjectBookmark); register_property("Byte Bookmark", LIBMTP_PROPERTY_ByteBookmark, PTP_OPC_ByteBookmark); register_property("Last Build Date", LIBMTP_PROPERTY_LastBuildDate, PTP_OPC_LastBuildDate); register_property("Time To Live", LIBMTP_PROPERTY_TimetoLive, PTP_OPC_TimetoLive); register_property("Media GUID", LIBMTP_PROPERTY_MediaGUID, PTP_OPC_MediaGUID); register_property("Total Bit Rate", LIBMTP_PROPERTY_TotalBitRate, PTP_OPC_TotalBitRate); register_property("Bit Rate Type", LIBMTP_PROPERTY_BitRateType, PTP_OPC_BitRateType); register_property("Sample Rate", LIBMTP_PROPERTY_SampleRate, PTP_OPC_SampleRate); register_property("Number Of Channels", LIBMTP_PROPERTY_NumberOfChannels, PTP_OPC_NumberOfChannels); register_property("Audio Bit Depth", LIBMTP_PROPERTY_AudioBitDepth, PTP_OPC_AudioBitDepth); register_property("Scan Depth", LIBMTP_PROPERTY_ScanDepth, PTP_OPC_ScanDepth); register_property("Audio WAVE Codec", LIBMTP_PROPERTY_AudioWAVECodec, PTP_OPC_AudioWAVECodec); register_property("Audio Bit Rate", LIBMTP_PROPERTY_AudioBitRate, PTP_OPC_AudioBitRate); register_property("Video Four CC Codec", LIBMTP_PROPERTY_VideoFourCCCodec, PTP_OPC_VideoFourCCCodec); register_property("Video Bit Rate", LIBMTP_PROPERTY_VideoBitRate, PTP_OPC_VideoBitRate); register_property("Frames Per Thousand Seconds", LIBMTP_PROPERTY_FramesPerThousandSeconds, PTP_OPC_FramesPerThousandSeconds); register_property("Key Frame Distance", LIBMTP_PROPERTY_KeyFrameDistance, PTP_OPC_KeyFrameDistance); register_property("Buffer Size", LIBMTP_PROPERTY_BufferSize, PTP_OPC_BufferSize); register_property("Encoding Quality", LIBMTP_PROPERTY_EncodingQuality, PTP_OPC_EncodingQuality); register_property("Encoding Profile", LIBMTP_PROPERTY_EncodingProfile, PTP_OPC_EncodingProfile); register_property("Buy flag", LIBMTP_PROPERTY_BuyFlag, PTP_OPC_BuyFlag); register_property("Unknown property", LIBMTP_PROPERTY_UNKNOWN, 0); } /** * Returns the PTP property that maps to a certain libmtp internal property type. * @param inproperty the MTP library interface property * @return the PTP (libgphoto2) property type */ static uint16_t map_libmtp_property_to_ptp_property(LIBMTP_property_t inproperty) { propertymap_t *current; current = g_propertymap; while (current != NULL) { if(current->id == inproperty) { return current->ptp_id; } current = current->next; } return 0; } /** * Returns the MTP internal interface property that maps to a certain ptp * interface property. * @param inproperty the PTP (libgphoto2) interface property * @return the MTP library interface property */ static LIBMTP_property_t map_ptp_property_to_libmtp_property(uint16_t inproperty) { propertymap_t *current; current = g_propertymap; while (current != NULL) { if(current->ptp_id == inproperty) { return current->id; } current = current->next; } // printf("map_ptp_type_to_libmtp_type: unknown filetype.\n"); return LIBMTP_PROPERTY_UNKNOWN; } /** * Set the debug level. * * By default, the debug level is set to '0' (disable). */ void LIBMTP_Set_Debug(int level) { if (LIBMTP_debug || level) LIBMTP_ERROR("LIBMTP_Set_Debug: Setting debugging level to %d (0x%02x) " "(%s)\n", level, level, level ? "on" : "off"); LIBMTP_debug = level; } /** * Initialize the library. You are only supposed to call this * one, before using the library for the first time in a program. * Never re-initialize libmtp! * * The only thing this does at the moment is to initialise the * filetype mapping table, as well as load MTPZ data if necessary. */ void LIBMTP_Init(void) { const char *env_debug = getenv("LIBMTP_DEBUG"); if (env_debug) { const long debug_flags = strtol(env_debug, NULL, 0); if (debug_flags != LONG_MIN && debug_flags != LONG_MAX && INT_MIN <= debug_flags && debug_flags <= INT_MAX) { LIBMTP_Set_Debug(debug_flags); } else { fprintf(stderr, "LIBMTP_Init: error setting debug flags from environment " "value \"%s\"\n", env_debug); } } init_filemap(); init_propertymap(); if (mtpz_loaddata() == -1) use_mtpz = 0; else use_mtpz = 1; return; } /** * This helper function returns a textual description for a libmtp * file type to be used in dialog boxes etc. * @param intype the libmtp internal filetype to get a description for. * @return a string representing the filetype, this must NOT * be free():ed by the caller! */ char const * LIBMTP_Get_Filetype_Description(LIBMTP_filetype_t intype) { filemap_t *current; current = g_filemap; while (current != NULL) { if(current->id == intype) { return current->description; } current = current->next; } return "Unknown filetype"; } /** * This helper function returns a textual description for a libmtp * property to be used in dialog boxes etc. * @param inproperty the libmtp internal property to get a description for. * @return a string representing the filetype, this must NOT * be free():ed by the caller! */ char const * LIBMTP_Get_Property_Description(LIBMTP_property_t inproperty) { propertymap_t *current; current = g_propertymap; while (current != NULL) { if(current->id == inproperty) { return current->description; } current = current->next; } return "Unknown property"; } /** * This function will do its best to fit a 16bit * value into a PTP object property if the property * is limited in range or step sizes. */ static uint16_t adjust_u16(uint16_t val, PTPObjectPropDesc *opd) { switch (opd->FormFlag) { case PTP_DPFF_Range: if (val < opd->FORM.Range.MinimumValue.u16) { return opd->FORM.Range.MinimumValue.u16; } if (val > opd->FORM.Range.MaximumValue.u16) { return opd->FORM.Range.MaximumValue.u16; } // Round down to last step. if (val % opd->FORM.Range.StepSize.u16 != 0) { return val - (val % opd->FORM.Range.StepSize.u16); } return val; break; case PTP_DPFF_Enumeration: { int i; uint16_t bestfit = opd->FORM.Enum.SupportedValue[0].u16; for (i=0; iFORM.Enum.NumberOfValues; i++) { if (val == opd->FORM.Enum.SupportedValue[i].u16) { return val; } // Rough guess of best fit if (opd->FORM.Enum.SupportedValue[i].u16 < val) { bestfit = opd->FORM.Enum.SupportedValue[i].u16; } } // Just some default that'll work. return bestfit; } default: // Will accept any value break; } return val; } /** * This function will do its best to fit a 32bit * value into a PTP object property if the property * is limited in range or step sizes. */ static uint32_t adjust_u32(uint32_t val, PTPObjectPropDesc *opd) { switch (opd->FormFlag) { case PTP_DPFF_Range: if (val < opd->FORM.Range.MinimumValue.u32) { return opd->FORM.Range.MinimumValue.u32; } if (val > opd->FORM.Range.MaximumValue.u32) { return opd->FORM.Range.MaximumValue.u32; } // Round down to last step. if (val % opd->FORM.Range.StepSize.u32 != 0) { return val - (val % opd->FORM.Range.StepSize.u32); } return val; break; case PTP_DPFF_Enumeration: { int i; uint32_t bestfit = opd->FORM.Enum.SupportedValue[0].u32; for (i=0; iFORM.Enum.NumberOfValues; i++) { if (val == opd->FORM.Enum.SupportedValue[i].u32) { return val; } // Rough guess of best fit if (opd->FORM.Enum.SupportedValue[i].u32 < val) { bestfit = opd->FORM.Enum.SupportedValue[i].u32; } } // Just some default that'll work. return bestfit; } default: // Will accept any value break; } return val; } /** * This function returns a newly created ISO 8601 timestamp with the * current time in as high precision as possible. It even adds * the time zone if it can. */ static char *get_iso8601_stamp(void) { time_t curtime; struct tm *loctime; char tmp[64]; curtime = time(NULL); loctime = localtime(&curtime); strftime (tmp, sizeof(tmp), "%Y%m%dT%H%M%S.0%z", loctime); return strdup(tmp); } /** * Gets the allowed values (range or enum) for a property * @param device a pointer to an MTP device * @param property the property to query * @param filetype the filetype of the object you want to set values for * @param allowed_vals pointer to a LIBMTP_allowed_values_t struct to * receive the allowed values. Call LIBMTP_destroy_allowed_values_t * on this on successful completion. * @return 0 on success, any other value means failure */ int LIBMTP_Get_Allowed_Property_Values(LIBMTP_mtpdevice_t *device, LIBMTP_property_t const property, LIBMTP_filetype_t const filetype, LIBMTP_allowed_values_t *allowed_vals) { PTPObjectPropDesc opd; uint16_t ret = 0; ret = ptp_mtp_getobjectpropdesc(device->params, map_libmtp_property_to_ptp_property(property), map_libmtp_type_to_ptp_type(filetype), &opd); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Allowed_Property_Values(): could not get property description."); return -1; } if (opd.FormFlag == PTP_OPFF_Enumeration) { int i = 0; allowed_vals->is_range = 0; allowed_vals->num_entries = opd.FORM.Enum.NumberOfValues; switch (opd.DataType) { case PTP_DTC_INT8: allowed_vals->i8vals = malloc(sizeof(int8_t) * opd.FORM.Enum.NumberOfValues); allowed_vals->datatype = LIBMTP_DATATYPE_INT8; break; case PTP_DTC_UINT8: allowed_vals->u8vals = malloc(sizeof(uint8_t) * opd.FORM.Enum.NumberOfValues); allowed_vals->datatype = LIBMTP_DATATYPE_UINT8; break; case PTP_DTC_INT16: allowed_vals->i16vals = malloc(sizeof(int16_t) * opd.FORM.Enum.NumberOfValues); allowed_vals->datatype = LIBMTP_DATATYPE_INT16; break; case PTP_DTC_UINT16: allowed_vals->u16vals = malloc(sizeof(uint16_t) * opd.FORM.Enum.NumberOfValues); allowed_vals->datatype = LIBMTP_DATATYPE_UINT16; break; case PTP_DTC_INT32: allowed_vals->i32vals = malloc(sizeof(int32_t) * opd.FORM.Enum.NumberOfValues); allowed_vals->datatype = LIBMTP_DATATYPE_INT32; break; case PTP_DTC_UINT32: allowed_vals->u32vals = malloc(sizeof(uint32_t) * opd.FORM.Enum.NumberOfValues); allowed_vals->datatype = LIBMTP_DATATYPE_UINT32; break; case PTP_DTC_INT64: allowed_vals->i64vals = malloc(sizeof(int64_t) * opd.FORM.Enum.NumberOfValues); allowed_vals->datatype = LIBMTP_DATATYPE_INT64; break; case PTP_DTC_UINT64: allowed_vals->u64vals = malloc(sizeof(uint64_t) * opd.FORM.Enum.NumberOfValues); allowed_vals->datatype = LIBMTP_DATATYPE_UINT64; break; } for (i = 0; i < opd.FORM.Enum.NumberOfValues; i++) { switch (opd.DataType) { case PTP_DTC_INT8: allowed_vals->i8vals[i] = opd.FORM.Enum.SupportedValue[i].i8; break; case PTP_DTC_UINT8: allowed_vals->u8vals[i] = opd.FORM.Enum.SupportedValue[i].u8; break; case PTP_DTC_INT16: allowed_vals->i16vals[i] = opd.FORM.Enum.SupportedValue[i].i16; break; case PTP_DTC_UINT16: allowed_vals->u16vals[i] = opd.FORM.Enum.SupportedValue[i].u16; break; case PTP_DTC_INT32: allowed_vals->i32vals[i] = opd.FORM.Enum.SupportedValue[i].i32; break; case PTP_DTC_UINT32: allowed_vals->u32vals[i] = opd.FORM.Enum.SupportedValue[i].u32; break; case PTP_DTC_INT64: allowed_vals->i64vals[i] = opd.FORM.Enum.SupportedValue[i].i64; break; case PTP_DTC_UINT64: allowed_vals->u64vals[i] = opd.FORM.Enum.SupportedValue[i].u64; break; } } ptp_free_objectpropdesc(&opd); return 0; } else if (opd.FormFlag == PTP_OPFF_Range) { allowed_vals->is_range = 1; switch (opd.DataType) { case PTP_DTC_INT8: allowed_vals->i8min = opd.FORM.Range.MinimumValue.i8; allowed_vals->i8max = opd.FORM.Range.MaximumValue.i8; allowed_vals->i8step = opd.FORM.Range.StepSize.i8; allowed_vals->datatype = LIBMTP_DATATYPE_INT8; break; case PTP_DTC_UINT8: allowed_vals->u8min = opd.FORM.Range.MinimumValue.u8; allowed_vals->u8max = opd.FORM.Range.MaximumValue.u8; allowed_vals->u8step = opd.FORM.Range.StepSize.u8; allowed_vals->datatype = LIBMTP_DATATYPE_UINT8; break; case PTP_DTC_INT16: allowed_vals->i16min = opd.FORM.Range.MinimumValue.i16; allowed_vals->i16max = opd.FORM.Range.MaximumValue.i16; allowed_vals->i16step = opd.FORM.Range.StepSize.i16; allowed_vals->datatype = LIBMTP_DATATYPE_INT16; break; case PTP_DTC_UINT16: allowed_vals->u16min = opd.FORM.Range.MinimumValue.u16; allowed_vals->u16max = opd.FORM.Range.MaximumValue.u16; allowed_vals->u16step = opd.FORM.Range.StepSize.u16; allowed_vals->datatype = LIBMTP_DATATYPE_UINT16; break; case PTP_DTC_INT32: allowed_vals->i32min = opd.FORM.Range.MinimumValue.i32; allowed_vals->i32max = opd.FORM.Range.MaximumValue.i32; allowed_vals->i32step = opd.FORM.Range.StepSize.i32; allowed_vals->datatype = LIBMTP_DATATYPE_INT32; break; case PTP_DTC_UINT32: allowed_vals->u32min = opd.FORM.Range.MinimumValue.u32; allowed_vals->u32max = opd.FORM.Range.MaximumValue.u32; allowed_vals->u32step = opd.FORM.Range.StepSize.u32; allowed_vals->datatype = LIBMTP_DATATYPE_UINT32; break; case PTP_DTC_INT64: allowed_vals->i64min = opd.FORM.Range.MinimumValue.i64; allowed_vals->i64max = opd.FORM.Range.MaximumValue.i64; allowed_vals->i64step = opd.FORM.Range.StepSize.i64; allowed_vals->datatype = LIBMTP_DATATYPE_INT64; break; case PTP_DTC_UINT64: allowed_vals->u64min = opd.FORM.Range.MinimumValue.u64; allowed_vals->u64max = opd.FORM.Range.MaximumValue.u64; allowed_vals->u64step = opd.FORM.Range.StepSize.u64; allowed_vals->datatype = LIBMTP_DATATYPE_UINT64; break; } return 0; } else return -1; } /** * Destroys a LIBMTP_allowed_values_t struct * @param allowed_vals the struct to destroy */ void LIBMTP_destroy_allowed_values_t(LIBMTP_allowed_values_t *allowed_vals) { if (!allowed_vals->is_range) { switch (allowed_vals->datatype) { case LIBMTP_DATATYPE_INT8: if (allowed_vals->i8vals) free(allowed_vals->i8vals); break; case LIBMTP_DATATYPE_UINT8: if (allowed_vals->u8vals) free(allowed_vals->u8vals); break; case LIBMTP_DATATYPE_INT16: if (allowed_vals->i16vals) free(allowed_vals->i16vals); break; case LIBMTP_DATATYPE_UINT16: if (allowed_vals->u16vals) free(allowed_vals->u16vals); break; case LIBMTP_DATATYPE_INT32: if (allowed_vals->i32vals) free(allowed_vals->i32vals); break; case LIBMTP_DATATYPE_UINT32: if (allowed_vals->u32vals) free(allowed_vals->u32vals); break; case LIBMTP_DATATYPE_INT64: if (allowed_vals->i64vals) free(allowed_vals->i64vals); break; case LIBMTP_DATATYPE_UINT64: if (allowed_vals->u64vals) free(allowed_vals->u64vals); break; } } } /** * Determine if a property is supported for a given file type * @param device a pointer to an MTP device * @param property the property to query * @param filetype the filetype of the object you want to set values for * @return 0 if not supported, positive if supported, negative on error */ int LIBMTP_Is_Property_Supported(LIBMTP_mtpdevice_t *device, LIBMTP_property_t const property, LIBMTP_filetype_t const filetype) { uint16_t *props = NULL; uint32_t propcnt = 0; uint16_t ret = 0; unsigned int i = 0; int supported = 0; uint16_t ptp_prop = map_libmtp_property_to_ptp_property(property); if (!ptp_operation_issupported(device->params, PTP_OC_MTP_GetObjectPropsSupported)) return 0; ret = ptp_mtp_getobjectpropssupported(device->params, map_libmtp_type_to_ptp_type(filetype), &propcnt, &props); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Is_Property_Supported(): could not get properties supported."); return -1; } for (i = 0; i < propcnt; i++) { if (props[i] == ptp_prop) { supported = 1; break; } } free(props); return supported; } /** * Retrieves a string from an object * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id MTP attribute ID * @return valid string or NULL on failure. The returned string * must bee free():ed by the caller after * use. */ char *LIBMTP_Get_String_From_Object(LIBMTP_mtpdevice_t *device, uint32_t const object_id, LIBMTP_property_t const attribute_id) { return get_string_from_object(device, object_id, map_libmtp_property_to_ptp_property(attribute_id)); } /** * Retrieves an unsigned 64-bit integer from an object attribute * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id MTP attribute ID * @param value_default Default value to return on failure * @return the value */ uint64_t LIBMTP_Get_u64_From_Object(LIBMTP_mtpdevice_t *device,uint32_t const object_id, LIBMTP_property_t const attribute_id, uint64_t const value_default) { return get_u64_from_object(device, object_id, map_libmtp_property_to_ptp_property(attribute_id), value_default); } /** * Retrieves an unsigned 32-bit integer from an object attribute * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id MTP attribute ID * @param value_default Default value to return on failure * @return the value */ uint32_t LIBMTP_Get_u32_From_Object(LIBMTP_mtpdevice_t *device,uint32_t const object_id, LIBMTP_property_t const attribute_id, uint32_t const value_default) { return get_u32_from_object(device, object_id, map_libmtp_property_to_ptp_property(attribute_id), value_default); } /** * Retrieves an unsigned 16-bit integer from an object attribute * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id MTP attribute ID * @param value_default Default value to return on failure * @return a value */ uint16_t LIBMTP_Get_u16_From_Object(LIBMTP_mtpdevice_t *device, uint32_t const object_id, LIBMTP_property_t const attribute_id, uint16_t const value_default) { return get_u16_from_object(device, object_id, map_libmtp_property_to_ptp_property(attribute_id), value_default); } /** * Retrieves an unsigned 8-bit integer from an object attribute * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id MTP attribute ID * @param value_default Default value to return on failure * @return a value */ uint8_t LIBMTP_Get_u8_From_Object(LIBMTP_mtpdevice_t *device, uint32_t const object_id, LIBMTP_property_t const attribute_id, uint8_t const value_default) { return get_u8_from_object(device, object_id, map_libmtp_property_to_ptp_property(attribute_id), value_default); } /** * Sets an object attribute from a string * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id MTP attribute ID * @param string string value to set * @return 0 on success, any other value means failure */ int LIBMTP_Set_Object_String(LIBMTP_mtpdevice_t *device, uint32_t const object_id, LIBMTP_property_t const attribute_id, char const * const string) { return set_object_string(device, object_id, map_libmtp_property_to_ptp_property(attribute_id), string); } /** * Sets an object attribute from an unsigned 32-bit integer * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id MTP attribute ID * @param value 32-bit unsigned integer to set * @return 0 on success, any other value means failure */ int LIBMTP_Set_Object_u32(LIBMTP_mtpdevice_t *device, uint32_t const object_id, LIBMTP_property_t const attribute_id, uint32_t const value) { return set_object_u32(device, object_id, map_libmtp_property_to_ptp_property(attribute_id), value); } /** * Sets an object attribute from an unsigned 16-bit integer * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id MTP attribute ID * @param value 16-bit unsigned integer to set * @return 0 on success, any other value means failure */ int LIBMTP_Set_Object_u16(LIBMTP_mtpdevice_t *device, uint32_t const object_id, LIBMTP_property_t const attribute_id, uint16_t const value) { return set_object_u16(device, object_id, map_libmtp_property_to_ptp_property(attribute_id), value); } /** * Sets an object attribute from an unsigned 8-bit integer * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id MTP attribute ID * @param value 8-bit unsigned integer to set * @return 0 on success, any other value means failure */ int LIBMTP_Set_Object_u8(LIBMTP_mtpdevice_t *device, uint32_t const object_id, LIBMTP_property_t const attribute_id, uint8_t const value) { return set_object_u8(device, object_id, map_libmtp_property_to_ptp_property(attribute_id), value); } /** * Retrieves a string from an object * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id PTP attribute ID * @return valid string or NULL on failure. The returned string * must bee free():ed by the caller after * use. */ static char *get_string_from_object(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id) { PTPPropertyValue propval; char *retstring = NULL; PTPParams *params; uint16_t ret; MTPProperties *prop; if (!device || !object_id) return NULL; params = (PTPParams *) device->params; prop = ptp_find_object_prop_in_cache(params, object_id, attribute_id); if (prop) { if (prop->propval.str != NULL) return strdup(prop->propval.str); else return NULL; } ret = ptp_mtp_getobjectpropvalue(params, object_id, attribute_id, &propval, PTP_DTC_STR); if (ret == PTP_RC_OK) { if (propval.str != NULL) { retstring = (char *) strdup(propval.str); free(propval.str); } } else { add_ptp_error_to_errorstack(device, ret, "get_string_from_object(): could not get object string."); } return retstring; } /** * Retrieves an unsigned 64-bit integer from an object attribute * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id PTP attribute ID * @param value_default Default value to return on failure * @return the value */ static uint64_t get_u64_from_object(LIBMTP_mtpdevice_t *device,uint32_t const object_id, uint16_t const attribute_id, uint64_t const value_default) { PTPPropertyValue propval; uint64_t retval = value_default; PTPParams *params; uint16_t ret; MTPProperties *prop; if (!device) return value_default; params = (PTPParams *) device->params; prop = ptp_find_object_prop_in_cache(params, object_id, attribute_id); if (prop) return prop->propval.u64; ret = ptp_mtp_getobjectpropvalue(params, object_id, attribute_id, &propval, PTP_DTC_UINT64); if (ret == PTP_RC_OK) { retval = propval.u64; } else { add_ptp_error_to_errorstack(device, ret, "get_u64_from_object(): could not get unsigned 64bit integer from object."); } return retval; } /** * Retrieves an unsigned 32-bit integer from an object attribute * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id PTP attribute ID * @param value_default Default value to return on failure * @return the value */ static uint32_t get_u32_from_object(LIBMTP_mtpdevice_t *device,uint32_t const object_id, uint16_t const attribute_id, uint32_t const value_default) { PTPPropertyValue propval; uint32_t retval = value_default; PTPParams *params; uint16_t ret; MTPProperties *prop; if (!device) return value_default; params = (PTPParams *) device->params; prop = ptp_find_object_prop_in_cache(params, object_id, attribute_id); if (prop) return prop->propval.u32; ret = ptp_mtp_getobjectpropvalue(params, object_id, attribute_id, &propval, PTP_DTC_UINT32); if (ret == PTP_RC_OK) { retval = propval.u32; } else { add_ptp_error_to_errorstack(device, ret, "get_u32_from_object(): could not get unsigned 32bit integer from object."); } return retval; } /** * Retrieves an unsigned 16-bit integer from an object attribute * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id PTP attribute ID * @param value_default Default value to return on failure * @return a value */ static uint16_t get_u16_from_object(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, uint16_t const value_default) { PTPPropertyValue propval; uint16_t retval = value_default; PTPParams *params; uint16_t ret; MTPProperties *prop; if (!device) return value_default; params = (PTPParams *) device->params; // This O(n) search should not be used so often, since code // using the cached properties don't usually call this function. prop = ptp_find_object_prop_in_cache(params, object_id, attribute_id); if (prop) return prop->propval.u16; ret = ptp_mtp_getobjectpropvalue(params, object_id, attribute_id, &propval, PTP_DTC_UINT16); if (ret == PTP_RC_OK) { retval = propval.u16; } else { add_ptp_error_to_errorstack(device, ret, "get_u16_from_object(): could not get unsigned 16bit integer from object."); } return retval; } /** * Retrieves an unsigned 8-bit integer from an object attribute * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id PTP attribute ID * @param value_default Default value to return on failure * @return a value */ static uint8_t get_u8_from_object(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, uint8_t const value_default) { PTPPropertyValue propval; uint8_t retval = value_default; PTPParams *params; uint16_t ret; MTPProperties *prop; if (!device) return value_default; params = (PTPParams *) device->params; // This O(n) search should not be used so often, since code // using the cached properties don't usually call this function. prop = ptp_find_object_prop_in_cache(params, object_id, attribute_id); if (prop) return prop->propval.u8; ret = ptp_mtp_getobjectpropvalue(params, object_id, attribute_id, &propval, PTP_DTC_UINT8); if (ret == PTP_RC_OK) { retval = propval.u8; } else { add_ptp_error_to_errorstack(device, ret, "get_u8_from_object(): could not get unsigned 8bit integer from object."); } return retval; } /** * Sets an object attribute from a string * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id PTP attribute ID * @param string string value to set * @return 0 on success, any other value means failure */ static int set_object_string(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, char const * const string) { PTPPropertyValue propval; PTPParams *params; uint16_t ret; if (!device || !string) return -1; params = (PTPParams *) device->params; if (!ptp_operation_issupported(params,PTP_OC_MTP_SetObjectPropValue)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "set_object_string(): could not set object string: " "PTP_OC_MTP_SetObjectPropValue not supported."); return -1; } propval.str = (char *) string; ret = ptp_mtp_setobjectpropvalue(params, object_id, attribute_id, &propval, PTP_DTC_STR); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "set_object_string(): could not set object string."); return -1; } return 0; } /** * Sets an object attribute from an unsigned 32-bit integer * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id PTP attribute ID * @param value 32-bit unsigned integer to set * @return 0 on success, any other value means failure */ static int set_object_u32(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, uint32_t const value) { PTPPropertyValue propval; PTPParams *params; uint16_t ret; if (!device) return -1; params = (PTPParams *) device->params; if (!ptp_operation_issupported(params,PTP_OC_MTP_SetObjectPropValue)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "set_object_u32(): could not set unsigned 32bit integer property: " "PTP_OC_MTP_SetObjectPropValue not supported."); return -1; } propval.u32 = value; ret = ptp_mtp_setobjectpropvalue(params, object_id, attribute_id, &propval, PTP_DTC_UINT32); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "set_object_u32(): could not set unsigned 32bit integer property."); return -1; } return 0; } /** * Sets an object attribute from an unsigned 16-bit integer * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id PTP attribute ID * @param value 16-bit unsigned integer to set * @return 0 on success, any other value means failure */ static int set_object_u16(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, uint16_t const value) { PTPPropertyValue propval; PTPParams *params; uint16_t ret; if (!device) return 1; params = (PTPParams *) device->params; if (!ptp_operation_issupported(params,PTP_OC_MTP_SetObjectPropValue)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "set_object_u16(): could not set unsigned 16bit integer property: " "PTP_OC_MTP_SetObjectPropValue not supported."); return -1; } propval.u16 = value; ret = ptp_mtp_setobjectpropvalue(params, object_id, attribute_id, &propval, PTP_DTC_UINT16); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "set_object_u16(): could not set unsigned 16bit integer property."); return 1; } return 0; } /** * Sets an object attribute from an unsigned 8-bit integer * * @param device a pointer to an MTP device. * @param object_id Object reference * @param attribute_id PTP attribute ID * @param value 8-bit unsigned integer to set * @return 0 on success, any other value means failure */ static int set_object_u8(LIBMTP_mtpdevice_t *device, uint32_t const object_id, uint16_t const attribute_id, uint8_t const value) { PTPPropertyValue propval; PTPParams *params; uint16_t ret; if (!device) return 1; params = (PTPParams *) device->params; if (!ptp_operation_issupported(params,PTP_OC_MTP_SetObjectPropValue)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "set_object_u8(): could not set unsigned 8bit integer property: " "PTP_OC_MTP_SetObjectPropValue not supported."); return -1; } propval.u8 = value; ret = ptp_mtp_setobjectpropvalue(params, object_id, attribute_id, &propval, PTP_DTC_UINT8); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "set_object_u8(): could not set unsigned 8bit integer property."); return 1; } return 0; } /** * Get connected MTP device by list position. * @return a device pointer. * @see LIBMTP_Get_Connected_Devices() */ LIBMTP_mtpdevice_t *LIBMTP_Get_Device(int device_nr) { LIBMTP_mtpdevice_t *device = NULL; LIBMTP_raw_device_t *devices; int numdevs; LIBMTP_error_number_t ret; ret = LIBMTP_Detect_Raw_Devices(&devices, &numdevs); if (ret != LIBMTP_ERROR_NONE) { return NULL; } if (devices == NULL || numdevs == 0) { free(devices); return NULL; } if (device_nr < 0 || device_nr >= numdevs) { free(devices); return NULL; } device = LIBMTP_Open_Raw_Device(&devices[device_nr]); free(devices); return device; } /** * Get the first (as in "first in the list of") connected MTP device. * @return a device pointer. * @see LIBMTP_Get_Connected_Devices() */ LIBMTP_mtpdevice_t *LIBMTP_Get_First_Device(void) { return LIBMTP_Get_Device(0); } /** * Get connected MTP device by serial number. * @return a device pointer. * @see LIBMTP_Get_Connected_Devices() */ LIBMTP_mtpdevice_t *LIBMTP_Get_Device_By_SerialNumber(char *serial_number) { LIBMTP_mtpdevice_t *device = NULL; LIBMTP_raw_device_t *devices; int numdevs; LIBMTP_error_number_t ret; PTPParams *params; int found_device = 0; int i; if (serial_number == NULL || *serial_number == '\0') return NULL; ret = LIBMTP_Detect_Raw_Devices(&devices, &numdevs); if (ret != LIBMTP_ERROR_NONE) return NULL; if (devices == NULL || numdevs == 0) { free(devices); return NULL; } for (i = 0; i < numdevs; i++) { device = LIBMTP_Open_Raw_Device(&devices[i]); if (device == NULL) continue; params = (PTPParams *) device->params; if (strcmp(params->deviceinfo.SerialNumber, serial_number) == 0) { found_device = 1; break; } LIBMTP_Release_Device(device); } free(devices); if (!found_device) return NULL; return device; } /** * Get connected MTP device by list position or serial number. * @return a device pointer. * @see LIBMTP_Get_Connected_Devices() */ LIBMTP_mtpdevice_t *LIBMTP_Get_Device_By_ID(char *device_id) { uint32_t device_nr; char *endptr; if (device_id == NULL || *device_id == '\0') return NULL; // 1st try: serial number if (strlen(device_id) > 3 && strncmp(device_id, "SN:", 3) == 0) return LIBMTP_Get_Device_By_SerialNumber(device_id + 3); // 2nd try: device number device_nr = strtoul(device_id, &endptr, 10); if (*endptr == '\0') return LIBMTP_Get_Device(device_nr); return NULL; } /** * Overriding debug function. * This way we can disable debug prints. */ static void #ifdef __GNUC__ __attribute__((__format__(printf,2,0))) #endif LIBMTP_ptp_debug(void *data, const char *format, va_list args) { if ((LIBMTP_debug & LIBMTP_DEBUG_PTP) != 0) { vfprintf (stderr, format, args); fprintf (stderr, "\n"); fflush (stderr); } } /** * Overriding error function. * This way we can capture all error etc to our errorstack. */ static void #ifdef __GNUC__ __attribute__((__format__(printf,2,0))) #endif LIBMTP_ptp_error(void *data, const char *format, va_list args) { // if (data == NULL) { vfprintf (stderr, format, args); fflush (stderr); /* FIXME: find out how we shall get the device here. } else { PTP_USB *ptp_usb = data; LIBMTP_mtpdevice_t *device = ...; char buf[2048]; vsnprintf (buf, sizeof (buf), format, args); add_error_to_errorstack(device, LIBMTP_ERROR_PTP_LAYER, buf); } */ } /** * Parses the extension descriptor, there may be stuff in * this that we want to know about. */ static void parse_extension_descriptor(LIBMTP_mtpdevice_t *mtpdevice, char *desc) { unsigned int start = 0; unsigned int end = 0; /* NULL on Canon A70 */ if (!desc) return; /* descriptors are divided by semicolons */ while (end < strlen(desc)) { /* Skip past initial whitespace */ while ((end < strlen(desc)) && (desc[start] == ' ' )) { start++; end++; } /* Detect extension */ while ((end < strlen(desc)) && (desc[end] != ';')) end++; if (end < strlen(desc)) { char *element = strndup(desc + start, end-start); if (element) { unsigned int i = 0; // printf(" Element: \"%s\"\n", element); /* Parse for an extension */ while ((i < strlen(element)) && (element[i] != ':')) i++; if (i < strlen(element)) { char *name = strndup(element, i); int major = 0, minor = 0; /* extension versions have to be MAJOR.MINOR, but Samsung has one * with just 0, so just cope with those cases too */ if ( (2 == sscanf(element+i+1,"%d.%d",&major,&minor)) || (1 == sscanf(element+i+1,"%d",&major)) ) { LIBMTP_device_extension_t *extension; extension = malloc(sizeof(LIBMTP_device_extension_t)); extension->name = name; extension->major = major; extension->minor = minor; extension->next = NULL; if (mtpdevice->extensions == NULL) { mtpdevice->extensions = extension; } else { LIBMTP_device_extension_t *tmp = mtpdevice->extensions; while (tmp->next != NULL) tmp = tmp->next; tmp->next = extension; } } else { LIBMTP_ERROR("LIBMTP ERROR: couldnt parse extension %s\n", element); } } free(element); } } end++; start = end; } } /** * This function opens a device from a raw device. It is the * preferred way to access devices in the new interface where * several devices can come and go as the library is working * on a certain device. * @param rawdevice the raw device to open a "real" device for. * @return an open device. */ LIBMTP_mtpdevice_t *LIBMTP_Open_Raw_Device_Uncached(LIBMTP_raw_device_t *rawdevice) { LIBMTP_mtpdevice_t *mtp_device; uint8_t bs = 0; PTPParams *current_params; PTP_USB *ptp_usb; LIBMTP_error_number_t err; unsigned int i; /* Allocate dynamic space for our device */ mtp_device = (LIBMTP_mtpdevice_t *) malloc(sizeof(LIBMTP_mtpdevice_t)); /* Check if there was a memory allocation error */ if(mtp_device == NULL) { /* There has been an memory allocation error. We are going to ignore this device and attempt to continue */ /* TODO: This error statement could probably be a bit more robust */ LIBMTP_ERROR("LIBMTP PANIC: connect_usb_devices encountered a memory " "allocation error with device %d on bus %d, trying to continue", rawdevice->devnum, rawdevice->bus_location); return NULL; } memset(mtp_device, 0, sizeof(LIBMTP_mtpdevice_t)); // Non-cached by default mtp_device->cached = 0; /* Create PTP params */ current_params = (PTPParams *) malloc(sizeof(PTPParams)); if (current_params == NULL) { free(mtp_device); return NULL; } memset(current_params, 0, sizeof(PTPParams)); current_params->device_flags = rawdevice->device_entry.device_flags; current_params->nrofobjects = 0; current_params->cachetime = 2; current_params->objects = NULL; current_params->response_packet_size = 0; current_params->response_packet = NULL; /* This will be a pointer to PTP_USB later */ current_params->data = NULL; /* Set upp local debug and error functions */ current_params->debug_func = LIBMTP_ptp_debug; current_params->error_func = LIBMTP_ptp_error; /* TODO: Will this always be little endian? */ current_params->byteorder = PTP_DL_LE; #if defined(HAVE_ICONV) && defined(HAVE_LANGINFO_H) current_params->cd_locale_to_ucs2 = iconv_open("UTF-16LE", "UTF-8"); current_params->cd_ucs2_to_locale = iconv_open("UTF-8", "UTF-16LE"); if(current_params->cd_locale_to_ucs2 == (iconv_t) -1 || current_params->cd_ucs2_to_locale == (iconv_t) -1) { LIBMTP_ERROR("LIBMTP PANIC: Cannot open iconv() converters to/from UCS-2!\n" "Too old stdlibc, glibc and libiconv?\n"); free(current_params); free(mtp_device); return NULL; } #endif mtp_device->params = current_params; /* Create usbinfo, this also opens the session */ err = configure_usb_device(rawdevice, current_params, &mtp_device->usbinfo); if (err != LIBMTP_ERROR_NONE) { free(current_params); free(mtp_device); return NULL; } ptp_usb = (PTP_USB*) mtp_device->usbinfo; /* Set pointer back to params */ ptp_usb->params = current_params; /* Cache the device information for later use */ if (ptp_getdeviceinfo(current_params, ¤t_params->deviceinfo) != PTP_RC_OK) { LIBMTP_ERROR("LIBMTP PANIC: Unable to read device information on device " "%d on bus %d, trying to continue", rawdevice->devnum, rawdevice->bus_location); /* Prevent memory leaks for this device */ free(mtp_device->usbinfo); free(mtp_device->params); current_params = NULL; free(mtp_device); return NULL; } /* Check: if this is a PTP device, is it really tagged as MTP? */ if (current_params->deviceinfo.VendorExtensionID != 0x00000006) { LIBMTP_ERROR("LIBMTP WARNING: no MTP vendor extension on device " "%d on bus %d", rawdevice->devnum, rawdevice->bus_location); LIBMTP_ERROR("LIBMTP WARNING: VendorExtensionID: %08x", current_params->deviceinfo.VendorExtensionID); LIBMTP_ERROR("LIBMTP WARNING: VendorExtensionDesc: %s", current_params->deviceinfo.VendorExtensionDesc); LIBMTP_ERROR("LIBMTP WARNING: this typically means the device is PTP " "(i.e. a camera) but not an MTP device at all. " "Trying to continue anyway."); } parse_extension_descriptor(mtp_device, current_params->deviceinfo.VendorExtensionDesc); /* * Android has a number of bugs, force-assign these bug flags * if Android is encountered. Same thing for devices we detect * as SONY NWZ Walkmen. I have no clue what "sony.net/WMFU" means * I just know only NWZs have it. */ { LIBMTP_device_extension_t *tmpext = mtp_device->extensions; int is_microsoft_com_wpdna = 0; int is_android = 0; int is_sony_net_wmfu = 0; int is_sonyericsson_com_se = 0; /* Loop over extensions and set flags */ while (tmpext != NULL) { if (!strcmp(tmpext->name, "microsoft.com/WPDNA")) is_microsoft_com_wpdna = 1; if (!strcmp(tmpext->name, "android.com")) is_android = 1; if (!strcmp(tmpext->name, "sony.net/WMFU")) is_sony_net_wmfu = 1; if (!strcmp(tmpext->name, "sonyericsson.com/SE")) is_sonyericsson_com_se = 1; tmpext = tmpext->next; } /* Check for specific stacks */ if (is_microsoft_com_wpdna && is_sonyericsson_com_se && !is_android) { /* * The Aricent stack seems to be detected by providing WPDNA, the SonyEricsson * extension and NO Android extension. */ ptp_usb->rawdevice.device_entry.device_flags |= DEVICE_FLAGS_ARICENT_BUGS; LIBMTP_INFO("Aricent MTP stack device detected, assigning default bug flags\n"); } else if (is_android) { /* * If bugs are fixed in later versions, test on tmpext->major, tmpext->minor */ ptp_usb->rawdevice.device_entry.device_flags |= DEVICE_FLAGS_ANDROID_BUGS; LIBMTP_INFO("Android device detected, assigning default bug flags\n"); } else if (is_sony_net_wmfu) { ptp_usb->rawdevice.device_entry.device_flags |= DEVICE_FLAGS_SONY_NWZ_BUGS; LIBMTP_INFO("SONY NWZ device detected, assigning default bug flags\n"); } } /* * If the OGG or FLAC filetypes are flagged as "unknown", check * if the firmware has been updated to actually support it. */ if (FLAG_OGG_IS_UNKNOWN(ptp_usb)) { for (i=0;ideviceinfo.ImageFormats_len;i++) { if (current_params->deviceinfo.ImageFormats[i] == PTP_OFC_MTP_OGG) { /* This is not unknown anymore, unflag it */ ptp_usb->rawdevice.device_entry.device_flags &= ~DEVICE_FLAG_OGG_IS_UNKNOWN; break; } } } if (FLAG_FLAC_IS_UNKNOWN(ptp_usb)) { for (i=0;ideviceinfo.ImageFormats_len;i++) { if (current_params->deviceinfo.ImageFormats[i] == PTP_OFC_MTP_FLAC) { /* This is not unknown anymore, unflag it */ ptp_usb->rawdevice.device_entry.device_flags &= ~DEVICE_FLAG_FLAC_IS_UNKNOWN; break; } } } /* Determine if the object size supported is 32 or 64 bit wide */ if (ptp_operation_issupported(current_params,PTP_OC_MTP_GetObjectPropsSupported)) { for (i=0;ideviceinfo.ImageFormats_len;i++) { PTPObjectPropDesc opd; if (ptp_mtp_getobjectpropdesc(current_params, PTP_OPC_ObjectSize, current_params->deviceinfo.ImageFormats[i], &opd) != PTP_RC_OK) { LIBMTP_ERROR("LIBMTP PANIC: " "could not inspect object property description 0x%04x!\n", current_params->deviceinfo.ImageFormats[i]); } else { if (opd.DataType == PTP_DTC_UINT32) { if (bs == 0) { bs = 32; } else if (bs != 32) { LIBMTP_ERROR("LIBMTP PANIC: " "different objects support different object sizes!\n"); bs = 0; break; } } else if (opd.DataType == PTP_DTC_UINT64) { if (bs == 0) { bs = 64; } else if (bs != 64) { LIBMTP_ERROR("LIBMTP PANIC: " "different objects support different object sizes!\n"); bs = 0; break; } } else { // Ignore if other size. LIBMTP_ERROR("LIBMTP PANIC: " "awkward object size data type: %04x\n", opd.DataType); bs = 0; break; } } } } if (bs == 0) { // Could not detect object bitsize, assume 32 bits bs = 32; } mtp_device->object_bitsize = bs; /* No Errors yet for this device */ mtp_device->errorstack = NULL; /* Default Max Battery Level, we will adjust this if possible */ mtp_device->maximum_battery_level = 100; /* Check if device supports reading maximum battery level */ if(!FLAG_BROKEN_BATTERY_LEVEL(ptp_usb) && ptp_property_issupported( current_params, PTP_DPC_BatteryLevel)) { PTPDevicePropDesc dpd; /* Try to read maximum battery level */ if(ptp_getdevicepropdesc(current_params, PTP_DPC_BatteryLevel, &dpd) != PTP_RC_OK) { add_error_to_errorstack(mtp_device, LIBMTP_ERROR_CONNECTING, "Unable to read Maximum Battery Level for this " "device even though the device supposedly " "supports this functionality"); } /* TODO: is this appropriate? */ /* If max battery level is 0 then leave the default, otherwise assign */ if (dpd.FORM.Range.MaximumValue.u8 != 0) { mtp_device->maximum_battery_level = dpd.FORM.Range.MaximumValue.u8; } ptp_free_devicepropdesc(&dpd); } /* Set all default folders to 0xffffffffU (root directory) */ mtp_device->default_music_folder = 0xffffffffU; mtp_device->default_playlist_folder = 0xffffffffU; mtp_device->default_picture_folder = 0xffffffffU; mtp_device->default_video_folder = 0xffffffffU; mtp_device->default_organizer_folder = 0xffffffffU; mtp_device->default_zencast_folder = 0xffffffffU; mtp_device->default_album_folder = 0xffffffffU; mtp_device->default_text_folder = 0xffffffffU; /* Set initial storage information */ mtp_device->storage = NULL; if (LIBMTP_Get_Storage(mtp_device, LIBMTP_STORAGE_SORTBY_NOTSORTED) == -1) { add_error_to_errorstack(mtp_device, LIBMTP_ERROR_GENERAL, "Get Storage information failed."); mtp_device->storage = NULL; } return mtp_device; } LIBMTP_mtpdevice_t *LIBMTP_Open_Raw_Device(LIBMTP_raw_device_t *rawdevice) { LIBMTP_mtpdevice_t *mtp_device = LIBMTP_Open_Raw_Device_Uncached(rawdevice); if (mtp_device == NULL) return NULL; /* Check for MTPZ devices. */ if (use_mtpz) { LIBMTP_device_extension_t *tmpext = mtp_device->extensions; while (tmpext != NULL) { if (!strcmp(tmpext->name, "microsoft.com/MTPZ")) { LIBMTP_INFO("MTPZ device detected. Authenticating...\n"); if (PTP_RC_OK == ptp_mtpz_handshake(mtp_device->params)) { LIBMTP_INFO ("(MTPZ) Successfully authenticated with device.\n"); } else { LIBMTP_INFO ("(MTPZ) Failure - could not authenticate with device.\n"); } break; } tmpext = tmpext->next; } } // Set up this device as cached mtp_device->cached = 1; /* * Then get the handles and try to locate the default folders. * This has the desired side effect of caching all handles from * the device which speeds up later operations. */ flush_handles(mtp_device); return mtp_device; } /** * To read events sent by the device, repeatedly call this function from a secondary * thread until the return value is < 0. * * @param device a pointer to the MTP device to poll for events. * @param event contains a pointer to be filled in with the event retrieved if the call * is successful. * @param out1 contains the param1 value from the raw event. * @return 0 on success, any other value means the polling loop shall be * terminated immediately for this session. */ int LIBMTP_Read_Event(LIBMTP_mtpdevice_t *device, LIBMTP_event_t *event, uint32_t *out1) { /* * FIXME: Potential race-condition here, if client deallocs device * while we're *not* waiting for input. As we'll be waiting for * input most of the time, it's unlikely but still worth considering * for improvement. Also we cannot affect the state of the cache etc * unless we know we are the sole user on the device. A spinlock or * mutex in the LIBMTP_mtpdevice_t is needed for this to work. */ PTPParams *params = (PTPParams *) device->params; PTPContainer ptp_event; uint16_t ret = ptp_usb_event_wait(params, &ptp_event); if (ret != PTP_RC_OK) { /* Device is closing down or other fatal stuff, exit thread */ return -1; } LIBMTP_Handle_Event(&ptp_event, event, out1); return 0; } void LIBMTP_Handle_Event(PTPContainer *ptp_event, LIBMTP_event_t *event, uint32_t *out1) { uint16_t code; uint32_t session_id; uint32_t param1; *event = LIBMTP_EVENT_NONE; /* Process the event */ code = ptp_event->Code; session_id = ptp_event->SessionID; param1 = ptp_event->Param1; switch(code) { case PTP_EC_Undefined: LIBMTP_INFO("Received event PTP_EC_Undefined in session %u\n", session_id); break; case PTP_EC_CancelTransaction: LIBMTP_INFO("Received event PTP_EC_CancelTransaction in session %u\n", session_id); break; case PTP_EC_ObjectAdded: LIBMTP_INFO("Received event PTP_EC_ObjectAdded in session %u\n", session_id); *event = LIBMTP_EVENT_OBJECT_ADDED; *out1 = param1; break; case PTP_EC_ObjectRemoved: LIBMTP_INFO("Received event PTP_EC_ObjectRemoved in session %u\n", session_id); *event = LIBMTP_EVENT_OBJECT_REMOVED; *out1 = param1; break; case PTP_EC_StoreAdded: LIBMTP_INFO("Received event PTP_EC_StoreAdded in session %u\n", session_id); /* TODO: rescan storages */ *event = LIBMTP_EVENT_STORE_ADDED; *out1 = param1; break; case PTP_EC_StoreRemoved: LIBMTP_INFO("Received event PTP_EC_StoreRemoved in session %u\n", session_id); /* TODO: rescan storages */ *event = LIBMTP_EVENT_STORE_REMOVED; *out1 = param1; break; case PTP_EC_DevicePropChanged: LIBMTP_INFO("Received event PTP_EC_DevicePropChanged in session %u\n", session_id); /* TODO: update device properties */ *event = LIBMTP_EVENT_DEVICE_PROPERTY_CHANGED; *out1 = param1; break; case PTP_EC_ObjectInfoChanged: LIBMTP_INFO("Received event PTP_EC_ObjectInfoChanged in session %u\n", session_id); /* TODO: rescan object cache or just for this one object */ break; case PTP_EC_DeviceInfoChanged: LIBMTP_INFO("Received event PTP_EC_DeviceInfoChanged in session %u\n", session_id); /* TODO: update device info */ break; case PTP_EC_RequestObjectTransfer: LIBMTP_INFO("Received event PTP_EC_RequestObjectTransfer in session %u\n", session_id); break; case PTP_EC_StoreFull: LIBMTP_INFO("Received event PTP_EC_StoreFull in session %u\n", session_id); break; case PTP_EC_DeviceReset: LIBMTP_INFO("Received event PTP_EC_DeviceReset in session %u\n", session_id); break; case PTP_EC_StorageInfoChanged : LIBMTP_INFO( "Received event PTP_EC_StorageInfoChanged in session %u\n", session_id); /* TODO: update storage info */ break; case PTP_EC_CaptureComplete : LIBMTP_INFO( "Received event PTP_EC_CaptureComplete in session %u\n", session_id); break; case PTP_EC_UnreportedStatus : LIBMTP_INFO( "Received event PTP_EC_UnreportedStatus in session %u\n", session_id); break; default : LIBMTP_INFO( "Received unknown event in session %u\n", session_id); break; } } static void LIBMTP_Read_Event_Cb(PTPParams *params, uint16_t ret_code, PTPContainer *ptp_event, void *user_data) { event_cb_data_t *data = user_data; LIBMTP_event_t event = LIBMTP_EVENT_NONE; uint32_t param1 = 0; int handler_ret; switch (ret_code) { case PTP_RC_OK: handler_ret = LIBMTP_HANDLER_RETURN_OK; LIBMTP_Handle_Event(ptp_event, &event, ¶m1); break; case PTP_ERROR_CANCEL: handler_ret = LIBMTP_HANDLER_RETURN_CANCEL; break; default: handler_ret = LIBMTP_HANDLER_RETURN_ERROR; break; } data->cb(handler_ret, event, param1, data->user_data); free(data); } /** * This function reads events sent by the device, in a non-blocking manner. * The callback function will be called when an event is received, but for the function * to make progress, polling must take place, using LIBMTP_Handle_Events_Timeout_Completed. * * After an event is received, this function should be called again to listen for the next * event. * * For now, this non-blocking mechanism only works with libusb-1.0, and not any of the * other usb library backends. Attempting to call this method with another backend will * always return an error. * * @param device a pointer to the MTP device to poll for events. * @param cb a callback to be invoked when an event is received. * @param user_data arbitrary user data passed to the callback. * @return 0 on success, any other value means that the callback was not registered and * no event notification will take place. */ int LIBMTP_Read_Event_Async(LIBMTP_mtpdevice_t *device, LIBMTP_event_cb_fn cb, void *user_data) { PTPParams *params = (PTPParams *) device->params; event_cb_data_t *data = malloc(sizeof(event_cb_data_t)); uint16_t ret; data->cb = cb; data->user_data = user_data; ret = ptp_usb_event_async(params, LIBMTP_Read_Event_Cb, data); return ret == PTP_RC_OK ? 0 : -1; } /** * Recursive function that adds MTP devices to a linked list * @param devices a list of raw devices to have real devices created for. * @return a device pointer to a newly created mtpdevice (used in linked * list creation). */ static LIBMTP_mtpdevice_t * create_usb_mtp_devices(LIBMTP_raw_device_t *devices, unsigned int numdevs) { unsigned int i; LIBMTP_mtpdevice_t *mtp_device_list = NULL; LIBMTP_mtpdevice_t *current_device = NULL; for (i=0; i < numdevs; i++) { LIBMTP_mtpdevice_t *mtp_device; mtp_device = LIBMTP_Open_Raw_Device(&devices[i]); /* On error, try next device */ if (mtp_device == NULL) continue; /* Add the device to the list */ mtp_device->next = NULL; if (mtp_device_list == NULL) { mtp_device_list = current_device = mtp_device; } else { current_device->next = mtp_device; current_device = mtp_device; } } return mtp_device_list; } /** * Get the number of devices that are available in the listed device list * @param device_list Pointer to a linked list of devices * @return Number of devices in the device list device_list * @see LIBMTP_Get_Connected_Devices() */ uint32_t LIBMTP_Number_Devices_In_List(LIBMTP_mtpdevice_t *device_list) { uint32_t numdevices = 0; LIBMTP_mtpdevice_t *iter; for(iter = device_list; iter != NULL; iter = iter->next) numdevices++; return numdevices; } /** * Get the first connected MTP device node in the linked list of devices. * Currently this only provides access to USB devices * @param device_list A list of devices ready to be used by the caller. You * need to know how many there are. * @return Any error information gathered from device connections * @see LIBMTP_Number_Devices_In_List() */ LIBMTP_error_number_t LIBMTP_Get_Connected_Devices(LIBMTP_mtpdevice_t **device_list) { LIBMTP_raw_device_t *devices; int numdevs; LIBMTP_error_number_t ret; ret = LIBMTP_Detect_Raw_Devices(&devices, &numdevs); if (ret != LIBMTP_ERROR_NONE) { *device_list = NULL; return ret; } /* Assign linked list of devices */ if (devices == NULL || numdevs == 0) { *device_list = NULL; free(devices); return LIBMTP_ERROR_NO_DEVICE_ATTACHED; } *device_list = create_usb_mtp_devices(devices, numdevs); free(devices); /* TODO: Add wifi device access here */ /* We have found some devices but create failed */ if (*device_list == NULL) return LIBMTP_ERROR_CONNECTING; return LIBMTP_ERROR_NONE; } /** * This closes and releases an allocated MTP device. * @param device a pointer to the MTP device to release. */ void LIBMTP_Release_Device_List(LIBMTP_mtpdevice_t *device) { if(device != NULL) { if(device->next != NULL) { LIBMTP_Release_Device_List(device->next); } LIBMTP_Release_Device(device); } } /** * This closes and releases an allocated MTP device. * @param device a pointer to the MTP device to release. */ void LIBMTP_Release_Device(LIBMTP_mtpdevice_t *device) { PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; close_device(ptp_usb, params); // Clear error stack LIBMTP_Clear_Errorstack(device); #if defined(HAVE_ICONV) && defined(HAVE_LANGINFO_H) iconv_close(params->cd_locale_to_ucs2); iconv_close(params->cd_ucs2_to_locale); #endif free(ptp_usb); ptp_free_params(params); free(params); free_storage_list(device); // Free extension list... if (device->extensions != NULL) { LIBMTP_device_extension_t *tmp = device->extensions; while (tmp != NULL) { LIBMTP_device_extension_t *next = tmp->next; if (tmp->name) free(tmp->name); free(tmp); tmp = next; } } free(device); } /** * This can be used by any libmtp-intrinsic code that * need to stack up an error on the stack. You are only * supposed to add errors to the error stack using this * function, do not create and reference error entries * directly. */ static void add_error_to_errorstack(LIBMTP_mtpdevice_t *device, LIBMTP_error_number_t errornumber, char const * const error_text) { LIBMTP_error_t *newerror; if (device == NULL) { LIBMTP_ERROR("LIBMTP PANIC: Trying to add error to a NULL device!\n"); return; } newerror = (LIBMTP_error_t *) malloc(sizeof(LIBMTP_error_t)); newerror->errornumber = errornumber; newerror->error_text = strdup(error_text); newerror->next = NULL; if (device->errorstack == NULL) { device->errorstack = newerror; } else { LIBMTP_error_t *tmp = device->errorstack; while (tmp->next != NULL) { tmp = tmp->next; } tmp->next = newerror; } } /** * Adds an error from the PTP layer to the error stack. */ static void add_ptp_error_to_errorstack(LIBMTP_mtpdevice_t *device, uint16_t ptp_error, char const * const error_text) { PTPParams *params = (PTPParams *) device->params; if (device == NULL) { LIBMTP_ERROR("LIBMTP PANIC: Trying to add PTP error to a NULL device!\n"); return; } else { char outstr[256]; snprintf(outstr, sizeof(outstr), "PTP Layer error %04x: %s", ptp_error, error_text); outstr[sizeof(outstr)-1] = '\0'; add_error_to_errorstack(device, LIBMTP_ERROR_PTP_LAYER, outstr); snprintf(outstr, sizeof(outstr), "Error %04x: %s", ptp_error, ptp_strerror(ptp_error, params->deviceinfo.VendorExtensionID)); outstr[sizeof(outstr)-1] = '\0'; add_error_to_errorstack(device, LIBMTP_ERROR_PTP_LAYER, outstr); } } /** * This returns the error stack for a device in case you * need to either reference the error numbers (e.g. when * creating multilingual apps with multiple-language text * representations for each error number) or when you need * to build a multi-line error text widget or something like * that. You need to call the LIBMTP_Clear_Errorstack * to clear it when you're finished with it. * @param device a pointer to the MTP device to get the error * stack for. * @return the error stack or NULL if there are no errors * on the stack. * @see LIBMTP_Clear_Errorstack() * @see LIBMTP_Dump_Errorstack() */ LIBMTP_error_t *LIBMTP_Get_Errorstack(LIBMTP_mtpdevice_t *device) { if (device == NULL) { LIBMTP_ERROR("LIBMTP PANIC: Trying to get the error stack of a NULL device!\n"); return NULL; } return device->errorstack; } /** * This function clears the error stack of a device and frees * any memory used by it. Call this when you're finished with * using the errors. * @param device a pointer to the MTP device to clear the error * stack for. */ void LIBMTP_Clear_Errorstack(LIBMTP_mtpdevice_t *device) { if (device == NULL) { LIBMTP_ERROR("LIBMTP PANIC: Trying to clear the error stack of a NULL device!\n"); } else { LIBMTP_error_t *tmp = device->errorstack; while (tmp != NULL) { LIBMTP_error_t *tmp2; if (tmp->error_text != NULL) { free(tmp->error_text); } tmp2 = tmp; tmp = tmp->next; free(tmp2); } device->errorstack = NULL; } } /** * This function dumps the error stack to stderr. * (You still have to clear the stack though.) * @param device a pointer to the MTP device to dump the error * stack for. */ void LIBMTP_Dump_Errorstack(LIBMTP_mtpdevice_t *device) { if (device == NULL) { LIBMTP_ERROR("LIBMTP PANIC: Trying to dump the error stack of a NULL device!\n"); } else { LIBMTP_error_t *tmp = device->errorstack; while (tmp != NULL) { if (tmp->error_text != NULL) { LIBMTP_ERROR("Error %d: %s\n", tmp->errornumber, tmp->error_text); } else { LIBMTP_ERROR("Error %d: (unknown)\n", tmp->errornumber); } tmp = tmp->next; } } } /** * This command gets all handles and stuff by FAST directory retrieveal * which is available by getting all metadata for object * 0xffffffff which simply means "all metadata for all objects". * This works on the vast majority of MTP devices (there ARE exceptions!) * and is quite quick. Check the error stack to see if there were * problems getting the metadata. * @return 0 if all was OK, -1 on failure. */ static int get_all_metadata_fast(LIBMTP_mtpdevice_t *device) { PTPParams *params = (PTPParams *) device->params; int cnt = 0; int i, j, nrofprops; uint32_t lasthandle = 0xffffffff; MTPProperties *props = NULL; MTPProperties *prop; uint16_t ret; int oldtimeout; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; /* * The follow request causes the device to generate * a list of every file on the device and return it * in a single response. * * Some slow devices as well as devices with very * large file systems can easily take longer then * the standard timeout value before it is able * to return a response. * * Temporarly set timeout to allow working with * widest range of devices. */ get_usb_device_timeout(ptp_usb, &oldtimeout); set_usb_device_timeout(ptp_usb, 60000); ret = ptp_mtp_getobjectproplist(params, 0xffffffff, &props, &nrofprops); set_usb_device_timeout(ptp_usb, oldtimeout); if (ret == PTP_RC_MTP_Specification_By_Group_Unsupported) { // What's the point in the device implementing this command if // you cannot use it to get all props for AT LEAST one object? // Well, whatever... add_ptp_error_to_errorstack(device, ret, "get_all_metadata_fast(): " "cannot retrieve all metadata for an object on this device."); return -1; } if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "get_all_metadata_fast(): " "could not get proplist of all objects."); return -1; } if (props == NULL && nrofprops != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "get_all_metadata_fast(): " "call to ptp_mtp_getobjectproplist() returned " "inconsistent results."); return -1; } /* * We count the number of objects by counting the ObjectHandle * references, whenever it changes we get a new object, when it's * the same, it is just different properties of the same object. */ prop = props; for (i=0;iObjectHandle) { cnt++; lasthandle = prop->ObjectHandle; } prop++; } lasthandle = 0xffffffff; params->objects = calloc (cnt, sizeof(PTPObject)); prop = props; i = -1; for (j=0;jObjectHandle) { if (i >= 0) { params->objects[i].flags |= PTPOBJECT_OBJECTINFO_LOADED; if (!params->objects[i].oi.Filename) { /* I have one such file on my Creative (Marcus) */ params->objects[i].oi.Filename = strdup(""); } } i++; lasthandle = prop->ObjectHandle; params->objects[i].oid = prop->ObjectHandle; } switch (prop->property) { case PTP_OPC_ParentObject: params->objects[i].oi.ParentObject = prop->propval.u32; params->objects[i].flags |= PTPOBJECT_PARENTOBJECT_LOADED; break; case PTP_OPC_ObjectFormat: params->objects[i].oi.ObjectFormat = prop->propval.u16; break; case PTP_OPC_ObjectSize: // We loose precision here, up to 32 bits! However the commands that // retrieve metadata for files and tracks will make sure that the // PTP_OPC_ObjectSize is read in and duplicated again. if (device->object_bitsize == 64) { params->objects[i].oi.ObjectCompressedSize = (uint32_t) prop->propval.u64; } else { params->objects[i].oi.ObjectCompressedSize = prop->propval.u32; } break; case PTP_OPC_StorageID: params->objects[i].oi.StorageID = prop->propval.u32; params->objects[i].flags |= PTPOBJECT_STORAGEID_LOADED; break; case PTP_OPC_ObjectFileName: if (prop->propval.str != NULL) params->objects[i].oi.Filename = strdup(prop->propval.str); break; default: { MTPProperties *newprops; /* Copy all of the other MTP oprierties into the per-object proplist */ if (params->objects[i].nrofmtpprops) { newprops = realloc(params->objects[i].mtpprops, (params->objects[i].nrofmtpprops+1)*sizeof(MTPProperties)); } else { newprops = calloc(1,sizeof(MTPProperties)); } if (!newprops) return 0; /* FIXME: error handling? */ params->objects[i].mtpprops = newprops; memcpy(¶ms->objects[i].mtpprops[params->objects[i].nrofmtpprops], &props[j],sizeof(props[j])); params->objects[i].nrofmtpprops++; params->objects[i].flags |= PTPOBJECT_MTPPROPLIST_LOADED; break; } } prop++; } /* mark last entry also */ if (i >= 0) { params->objects[i].flags |= PTPOBJECT_OBJECTINFO_LOADED; params->nrofobjects = i+1; } else { params->nrofobjects = 0; } free (props); /* The device might not give the list in linear ascending order */ ptp_objects_sort (params); return 0; } /** * This function will recurse through all the directories on the device, * starting at the root directory, gathering metadata as it moves along. * It works better on some devices that will only return data for a * certain directory and does not respect the option to get all metadata * for all objects. */ static uint16_t get_handles_recursively(LIBMTP_mtpdevice_t *device, PTPParams *params, uint32_t storageid, uint32_t parent) { PTPObjectHandles currentHandles; unsigned int i = 0; uint16_t ret = ptp_getobjecthandles(params, storageid, PTP_GOH_ALL_FORMATS, parent, ¤tHandles); if (ret != PTP_RC_OK) { char buf[80]; sprintf(buf,"get_handles_recursively(): could not get object handles of %08x", parent); add_ptp_error_to_errorstack(device, ret, buf); return ret; } if (currentHandles.Handler == NULL || currentHandles.n == 0) return PTP_RC_OK; // Now descend into any subdirectories found for (i = 0; i < currentHandles.n; i++) { PTPObject *ob; ret = ptp_object_want(params,currentHandles.Handler[i], PTPOBJECT_OBJECTINFO_LOADED, &ob); if (ret == PTP_RC_OK) { if (ob->oi.ObjectFormat == PTP_OFC_Association) get_handles_recursively(device, params, storageid, currentHandles.Handler[i]); } else { add_error_to_errorstack(device, LIBMTP_ERROR_CONNECTING, "Found a bad handle, trying to ignore it."); return ret; } } free(currentHandles.Handler); return PTP_RC_OK; } /** * This function refresh the internal handle list whenever * the items stored inside the device is altered. On operations * that do not add or remove objects, this is typically not * called. * @param device a pointer to the MTP device to flush handles for. */ static void flush_handles(LIBMTP_mtpdevice_t *device) { PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; int ret; uint32_t i; if (!device->cached) { return; } if (params->objects != NULL) { for (i=0;inrofobjects;i++) ptp_free_object (¶ms->objects[i]); free(params->objects); params->objects = NULL; params->nrofobjects = 0; } if (ptp_operation_issupported(params,PTP_OC_MTP_GetObjPropList) && !FLAG_BROKEN_MTPGETOBJPROPLIST(ptp_usb) && !FLAG_BROKEN_MTPGETOBJPROPLIST_ALL(ptp_usb)) { // Use the fast method. Ignore return value for now. ret = get_all_metadata_fast(device); } // If the previous failed or returned no objects, use classic // methods instead. if (params->nrofobjects == 0) { // Get all the handles using just standard commands. if (device->storage == NULL) { get_handles_recursively(device, params, PTP_GOH_ALL_STORAGE, PTP_GOH_ROOT_PARENT); } else { // Get handles for each storage in turn. LIBMTP_devicestorage_t *storage = device->storage; while(storage != NULL) { get_handles_recursively(device, params, storage->id, PTP_GOH_ROOT_PARENT); storage = storage->next; } } } /* * Loop over the handles, fix up any NULL filenames or * keywords, then attempt to locate some default folders * in the root directory of the primary storage. */ for(i = 0; i < params->nrofobjects; i++) { PTPObject *ob, *xob; ob = ¶ms->objects[i]; ret = ptp_object_want(params,params->objects[i].oid, PTPOBJECT_OBJECTINFO_LOADED, &xob); if (ret != PTP_RC_OK) { LIBMTP_ERROR("broken! %x not found\n", params->objects[i].oid); } if (ob->oi.Filename == NULL) ob->oi.Filename = strdup(""); if (ob->oi.Keywords == NULL) ob->oi.Keywords = strdup(""); /* Ignore handles that point to non-folders */ if(ob->oi.ObjectFormat != PTP_OFC_Association) continue; /* Only look in the root folder */ if (ob->oi.ParentObject == 0xffffffffU) { LIBMTP_ERROR("object %x has parent 0xffffffff (-1) continuing anyway\n", ob->oid); } else if (ob->oi.ParentObject != 0x00000000U) continue; /* Only look in the primary storage */ if (device->storage != NULL && ob->oi.StorageID != device->storage->id) continue; /* Is this the Music Folder */ if (!strcasecmp(ob->oi.Filename, "My Music") || !strcasecmp(ob->oi.Filename, "My_Music") || !strcasecmp(ob->oi.Filename, "Music")) { device->default_music_folder = ob->oid; } else if (!strcasecmp(ob->oi.Filename, "My Playlists") || !strcasecmp(ob->oi.Filename, "My_Playlists") || !strcasecmp(ob->oi.Filename, "Playlists")) { device->default_playlist_folder = ob->oid; } else if (!strcasecmp(ob->oi.Filename, "My Pictures") || !strcasecmp(ob->oi.Filename, "My_Pictures") || !strcasecmp(ob->oi.Filename, "Pictures")) { device->default_picture_folder = ob->oid; } else if (!strcasecmp(ob->oi.Filename, "My Video") || !strcasecmp(ob->oi.Filename, "My_Video") || !strcasecmp(ob->oi.Filename, "Video")) { device->default_video_folder = ob->oid; } else if (!strcasecmp(ob->oi.Filename, "My Organizer") || !strcasecmp(ob->oi.Filename, "My_Organizer")) { device->default_organizer_folder = ob->oid; } else if (!strcasecmp(ob->oi.Filename, "ZENcast") || !strcasecmp(ob->oi.Filename, "Datacasts")) { device->default_zencast_folder = ob->oid; } else if (!strcasecmp(ob->oi.Filename, "My Albums") || !strcasecmp(ob->oi.Filename, "My_Albums") || !strcasecmp(ob->oi.Filename, "Albums")) { device->default_album_folder = ob->oid; } else if (!strcasecmp(ob->oi.Filename, "Text") || !strcasecmp(ob->oi.Filename, "Texts")) { device->default_text_folder = ob->oid; } } } /** * This function traverses a devices storage list freeing up the * strings and the structs. * @param device a pointer to the MTP device to free the storage * list for. */ static void free_storage_list(LIBMTP_mtpdevice_t *device) { LIBMTP_devicestorage_t *storage; LIBMTP_devicestorage_t *tmp; storage = device->storage; while(storage != NULL) { if (storage->StorageDescription != NULL) { free(storage->StorageDescription); } if (storage->VolumeIdentifier != NULL) { free(storage->VolumeIdentifier); } tmp = storage; storage = storage->next; free(tmp); } device->storage = NULL; return; } /** * This function sorts a devices storage list according to the criteria passed. * @param device a pointer to the MTP device to free the storage * @param sortby LIBMTP_STORAGE_SORTBY_* flag to sort the list for (either by free space or maximum space) */ static int sort_storage_by(LIBMTP_mtpdevice_t *device,int const sortby) { LIBMTP_devicestorage_t *oldhead, *ptr1, *ptr2, *newlist; if (device->storage == NULL) return -1; if (sortby == LIBMTP_STORAGE_SORTBY_NOTSORTED) return 0; oldhead = ptr1 = ptr2 = device->storage; newlist = NULL; while(oldhead != NULL) { ptr1 = ptr2 = oldhead; while(ptr1 != NULL) { if (sortby == LIBMTP_STORAGE_SORTBY_FREESPACE && ptr1->FreeSpaceInBytes > ptr2->FreeSpaceInBytes) ptr2 = ptr1; if (sortby == LIBMTP_STORAGE_SORTBY_MAXSPACE && ptr1->MaxCapacity > ptr2->MaxCapacity) ptr2 = ptr1; ptr1 = ptr1->next; } // Make our previous entries next point to our next if(ptr2->prev != NULL) { ptr1 = ptr2->prev; ptr1->next = ptr2->next; } else { oldhead = ptr2->next; if(oldhead != NULL) oldhead->prev = NULL; } // Make our next entries previous point to our previous ptr1 = ptr2->next; if(ptr1 != NULL) { ptr1->prev = ptr2->prev; } else { ptr1 = ptr2->prev; if(ptr1 != NULL) ptr1->next = NULL; } if(newlist == NULL) { newlist = ptr2; newlist->prev = NULL; } else { ptr2->prev = newlist; newlist->next = ptr2; newlist = newlist->next; } } if (newlist != NULL) { newlist->next = NULL; while(newlist->prev != NULL) newlist = newlist->prev; device->storage = newlist; } return 0; } /** * This function grabs the first writeable storageid from the * device storage list. * @param device a pointer to the MTP device to locate writeable * storage for. * @param fitsize a file of this file must fit on the device. */ static uint32_t get_writeable_storageid(LIBMTP_mtpdevice_t *device, uint64_t fitsize) { LIBMTP_devicestorage_t *storage; uint32_t store = 0x00000000; //Should this be 0xffffffffu instead? int subcall_ret; // See if there is some storage we can fit this file on. storage = device->storage; if (storage == NULL) { // Sometimes the storage just cannot be detected. store = 0x00000000U; } else { while(storage != NULL) { // These storages cannot be used. if (storage->StorageType == PTP_ST_FixedROM || storage->StorageType == PTP_ST_RemovableROM) { storage = storage->next; continue; } // Storage IDs with the lower 16 bits 0x0000 are not supposed // to be writeable. if ((storage->id & 0x0000FFFFU) == 0x00000000U) { storage = storage->next; continue; } // Also check the access capability to avoid e.g. deletable only storages if (storage->AccessCapability == PTP_AC_ReadOnly || storage->AccessCapability == PTP_AC_ReadOnly_with_Object_Deletion) { storage = storage->next; continue; } // Then see if we can fit the file. subcall_ret = check_if_file_fits(device, storage, fitsize); if (subcall_ret != 0) { storage = storage->next; } else { // We found a storage that is writable and can fit the file! break; } } if (storage == NULL) { add_error_to_errorstack(device, LIBMTP_ERROR_STORAGE_FULL, "get_writeable_storageid(): " "all device storage is full or corrupt."); return -1; } store = storage->id; } return store; } /** * Tries to suggest a storage_id of a given ID when we have a parent * @param device a pointer to the device where to search for the storage ID * @param fitsize a file of this file must fit on the device. * @param parent_id look for this ID * @ret storageID */ static int get_suggested_storage_id(LIBMTP_mtpdevice_t *device, uint64_t fitsize, uint32_t parent_id) { PTPParams *params = (PTPParams *) device->params; PTPObject *ob; uint16_t ret; ret = ptp_object_want(params, parent_id, PTPOBJECT_MTPPROPLIST_LOADED, &ob); if ((ret != PTP_RC_OK) || (ob->oi.StorageID == 0)) { add_ptp_error_to_errorstack(device, ret, "get_suggested_storage_id(): " "could not get storage id from parent id."); return get_writeable_storageid(device, fitsize); } else { /* OK we know the parent storage, then use that */ return ob->oi.StorageID; } } /** * This function grabs the freespace from a certain storage in * device storage list. * @param device a pointer to the MTP device to free the storage * list for. * @param storage a pointer to the storage to flush and * get free space for. * @param freespace the free space on this storage will be returned * in this variable. */ static int get_storage_freespace(LIBMTP_mtpdevice_t *device, LIBMTP_devicestorage_t *storage, uint64_t *freespace) { PTPParams *params = (PTPParams *) device->params; // Always query the device about this, since some models explicitly // needs that. We flush all data on queries storage here. if (ptp_operation_issupported(params,PTP_OC_GetStorageInfo)) { PTPStorageInfo storageInfo; uint16_t ret; ret = ptp_getstorageinfo(params, storage->id, &storageInfo); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "get_storage_freespace(): could not get storage info."); return -1; } if (storage->StorageDescription != NULL) { free(storage->StorageDescription); } if (storage->VolumeIdentifier != NULL) { free(storage->VolumeIdentifier); } storage->StorageType = storageInfo.StorageType; storage->FilesystemType = storageInfo.FilesystemType; storage->AccessCapability = storageInfo.AccessCapability; storage->MaxCapacity = storageInfo.MaxCapability; storage->FreeSpaceInBytes = storageInfo.FreeSpaceInBytes; storage->FreeSpaceInObjects = storageInfo.FreeSpaceInImages; storage->StorageDescription = storageInfo.StorageDescription; storage->VolumeIdentifier = storageInfo.VolumeLabel; } if(storage->FreeSpaceInBytes == (uint64_t) -1) return -1; *freespace = storage->FreeSpaceInBytes; return 0; } /** * This function dumps out a large chunk of textual information * provided from the PTP protocol and additionally some extra * MTP-specific information where applicable. * @param device a pointer to the MTP device to report info from. */ void LIBMTP_Dump_Device_Info(LIBMTP_mtpdevice_t *device) { unsigned int i; PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; LIBMTP_devicestorage_t *storage = device->storage; LIBMTP_device_extension_t *tmpext = device->extensions; printf("USB low-level info:\n"); dump_usbinfo(ptp_usb); /* Print out some verbose information */ printf("Device info:\n"); printf(" Manufacturer: %s\n", params->deviceinfo.Manufacturer); printf(" Model: %s\n", params->deviceinfo.Model); printf(" Device version: %s\n", params->deviceinfo.DeviceVersion); printf(" Serial number: %s\n", params->deviceinfo.SerialNumber); printf(" Vendor extension ID: 0x%08x\n", params->deviceinfo.VendorExtensionID); printf(" Vendor extension description: %s\n", params->deviceinfo.VendorExtensionDesc); printf(" Detected object size: %d bits\n", device->object_bitsize); printf(" Extensions:\n"); while (tmpext != NULL) { printf(" %s: %d.%d\n", tmpext->name, tmpext->major, tmpext->minor); tmpext = tmpext->next; } printf("Supported operations:\n"); for (i=0;ideviceinfo.OperationsSupported_len;i++) printf(" %04x: %s\n", params->deviceinfo.OperationsSupported[i], ptp_get_opcode_name(params, params->deviceinfo.OperationsSupported[i])); printf("Events supported:\n"); if (params->deviceinfo.EventsSupported_len == 0) { printf(" None.\n"); } else { for (i=0;ideviceinfo.EventsSupported_len;i++) { printf(" 0x%04x: %s\n", params->deviceinfo.EventsSupported[i], ptp_get_event_code_name(params, params->deviceinfo.EventsSupported[i])); } } printf("Device Properties Supported:\n"); for (i=0;ideviceinfo.DevicePropertiesSupported_len;i++) { char const *propdesc = ptp_get_property_description(params, params->deviceinfo.DevicePropertiesSupported[i]); if (propdesc != NULL) { printf(" 0x%04x: %s\n", params->deviceinfo.DevicePropertiesSupported[i], propdesc); } else { uint16_t prop = params->deviceinfo.DevicePropertiesSupported[i]; printf(" 0x%04x: Unknown property\n", prop); } } if (ptp_operation_issupported(params,PTP_OC_MTP_GetObjectPropsSupported)) { printf("Playable File (Object) Types and Object Properties Supported:\n"); for (i=0;ideviceinfo.ImageFormats_len;i++) { char txt[256]; uint16_t ret; uint16_t *props = NULL; uint32_t propcnt = 0; unsigned int j; (void) ptp_render_ofc (params, params->deviceinfo.ImageFormats[i], sizeof(txt), txt); printf(" %04x: %s\n", params->deviceinfo.ImageFormats[i], txt); ret = ptp_mtp_getobjectpropssupported (params, params->deviceinfo.ImageFormats[i], &propcnt, &props); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Dump_Device_Info(): " "error on query for object properties."); } else { for (j=0;jdeviceinfo.ImageFormats[i], &opd); if (ret != PTP_RC_OK) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Dump_Device_Info(): " "could not get property description."); break; } if (opd.DataType == PTP_DTC_STR) { printf(" STRING data type"); switch (opd.FormFlag) { case PTP_OPFF_DateTime: printf(" DATETIME FORM (%s)", opd.FORM.DateTime.String); break; case PTP_OPFF_RegularExpression: printf(" REGULAR EXPRESSION FORM (%s)", opd.FORM.RegularExpression.String); break; case PTP_OPFF_LongString: printf(" LONG STRING FORM"); break; default: break; } } else { if (opd.DataType & PTP_DTC_ARRAY_MASK) { printf(" array of"); } switch (opd.DataType & (~PTP_DTC_ARRAY_MASK)) { case PTP_DTC_UNDEF: printf(" UNDEFINED data type"); break; case PTP_DTC_INT8: printf(" INT8 data type"); switch (opd.FormFlag) { case PTP_OPFF_Range: printf(" range: MIN %d, MAX %d, STEP %d", opd.FORM.Range.MinimumValue.i8, opd.FORM.Range.MaximumValue.i8, opd.FORM.Range.StepSize.i8); break; case PTP_OPFF_Enumeration: printf(" enumeration: "); for(k=0;kdeviceinfo.ImageFormats[i] == PTP_OPC_VideoFourCCCodec) { printf(" enumeration of u32 casted FOURCC: "); for (k=0;k> 24) & 0xFFU; fourcc[1] = (opd.FORM.Enum.SupportedValue[k].u32 >> 16) & 0xFFU; fourcc[2] = (opd.FORM.Enum.SupportedValue[k].u32 >> 8) & 0xFFU; fourcc[3] = opd.FORM.Enum.SupportedValue[k].u32 & 0xFFU; fourcc[4] = '\n'; fourcc[5] = '\0'; printf("\"%s\", ", fourcc); } } } else { printf(" enumeration: "); for(k=0;kid); printf(" StorageType: 0x%04x ",storage->StorageType); switch (storage->StorageType) { case PTP_ST_Undefined: printf("(undefined)\n"); break; case PTP_ST_FixedROM: printf("fixed ROM storage\n"); break; case PTP_ST_RemovableROM: printf("removable ROM storage\n"); break; case PTP_ST_FixedRAM: printf("fixed RAM storage\n"); break; case PTP_ST_RemovableRAM: printf("removable RAM storage\n"); break; default: printf("UNKNOWN storage\n"); break; } printf(" FilesystemType: 0x%04x ",storage->FilesystemType); switch(storage->FilesystemType) { case PTP_FST_Undefined: printf("(undefined)\n"); break; case PTP_FST_GenericFlat: printf("generic flat filesystem\n"); break; case PTP_FST_GenericHierarchical: printf("generic hierarchical\n"); break; case PTP_FST_DCF: printf("DCF\n"); break; default: printf("UNKNONWN filesystem type\n"); break; } printf(" AccessCapability: 0x%04x ",storage->AccessCapability); switch(storage->AccessCapability) { case PTP_AC_ReadWrite: printf("read/write\n"); break; case PTP_AC_ReadOnly: printf("read only\n"); break; case PTP_AC_ReadOnly_with_Object_Deletion: printf("read only + object deletion\n"); break; default: printf("UNKNOWN access capability\n"); break; } printf(" MaxCapacity: %llu\n", (long long unsigned int) storage->MaxCapacity); printf(" FreeSpaceInBytes: %llu\n", (long long unsigned int) storage->FreeSpaceInBytes); printf(" FreeSpaceInObjects: %llu\n", (long long unsigned int) storage->FreeSpaceInObjects); printf(" StorageDescription: %s\n",storage->StorageDescription); printf(" VolumeIdentifier: %s\n",storage->VolumeIdentifier); storage = storage->next; } } printf("Special directories:\n"); printf(" Default music folder: 0x%08x\n", device->default_music_folder); printf(" Default playlist folder: 0x%08x\n", device->default_playlist_folder); printf(" Default picture folder: 0x%08x\n", device->default_picture_folder); printf(" Default video folder: 0x%08x\n", device->default_video_folder); printf(" Default organizer folder: 0x%08x\n", device->default_organizer_folder); printf(" Default zencast folder: 0x%08x\n", device->default_zencast_folder); printf(" Default album folder: 0x%08x\n", device->default_album_folder); printf(" Default text folder: 0x%08x\n", device->default_text_folder); } /** * This resets a device in case it supports the PTP_OC_ResetDevice * operation code (0x1010). * @param device a pointer to the device to reset. * @return 0 on success, any other value means failure. */ int LIBMTP_Reset_Device(LIBMTP_mtpdevice_t *device) { PTPParams *params = (PTPParams *) device->params; uint16_t ret; if (!ptp_operation_issupported(params,PTP_OC_ResetDevice)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Reset_Device(): " "device does not support resetting."); return -1; } ret = ptp_resetdevice(params); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "Error resetting."); return -1; } return 0; } /** * This retrieves the manufacturer name of an MTP device. * @param device a pointer to the device to get the manufacturer name for. * @return a newly allocated UTF-8 string representing the manufacturer name. * The string must be freed by the caller after use. If the call * was unsuccessful this will contain NULL. */ char *LIBMTP_Get_Manufacturername(LIBMTP_mtpdevice_t *device) { char *retmanuf = NULL; PTPParams *params = (PTPParams *) device->params; if (params->deviceinfo.Manufacturer != NULL) { retmanuf = strdup(params->deviceinfo.Manufacturer); } return retmanuf; } /** * This retrieves the model name (often equal to product name) * of an MTP device. * @param device a pointer to the device to get the model name for. * @return a newly allocated UTF-8 string representing the model name. * The string must be freed by the caller after use. If the call * was unsuccessful this will contain NULL. */ char *LIBMTP_Get_Modelname(LIBMTP_mtpdevice_t *device) { char *retmodel = NULL; PTPParams *params = (PTPParams *) device->params; if (params->deviceinfo.Model != NULL) { retmodel = strdup(params->deviceinfo.Model); } return retmodel; } /** * This retrieves the serial number of an MTP device. * @param device a pointer to the device to get the serial number for. * @return a newly allocated UTF-8 string representing the serial number. * The string must be freed by the caller after use. If the call * was unsuccessful this will contain NULL. */ char *LIBMTP_Get_Serialnumber(LIBMTP_mtpdevice_t *device) { char *retnumber = NULL; PTPParams *params = (PTPParams *) device->params; if (params->deviceinfo.SerialNumber != NULL) { retnumber = strdup(params->deviceinfo.SerialNumber); } return retnumber; } /** * This retrieves the device version (hardware and firmware version) of an * MTP device. * @param device a pointer to the device to get the device version for. * @return a newly allocated UTF-8 string representing the device version. * The string must be freed by the caller after use. If the call * was unsuccessful this will contain NULL. */ char *LIBMTP_Get_Deviceversion(LIBMTP_mtpdevice_t *device) { char *retversion = NULL; PTPParams *params = (PTPParams *) device->params; if (params->deviceinfo.DeviceVersion != NULL) { retversion = strdup(params->deviceinfo.DeviceVersion); } return retversion; } /** * This retrieves the "friendly name" of an MTP device. Usually * this is simply the name of the owner or something like * "John Doe's Digital Audio Player". This property should be supported * by all MTP devices. * @param device a pointer to the device to get the friendly name for. * @return a newly allocated UTF-8 string representing the friendly name. * The string must be freed by the caller after use. * @see LIBMTP_Set_Friendlyname() */ char *LIBMTP_Get_Friendlyname(LIBMTP_mtpdevice_t *device) { PTPPropertyValue propval; char *retstring = NULL; PTPParams *params = (PTPParams *) device->params; uint16_t ret; if (!ptp_property_issupported(params, PTP_DPC_MTP_DeviceFriendlyName)) { return NULL; } ret = ptp_getdevicepropvalue(params, PTP_DPC_MTP_DeviceFriendlyName, &propval, PTP_DTC_STR); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "Error getting friendlyname."); return NULL; } if (propval.str != NULL) { retstring = strdup(propval.str); free(propval.str); } return retstring; } /** * Sets the "friendly name" of an MTP device. * @param device a pointer to the device to set the friendly name for. * @param friendlyname the new friendly name for the device. * @return 0 on success, any other value means failure. * @see LIBMTP_Get_Friendlyname() */ int LIBMTP_Set_Friendlyname(LIBMTP_mtpdevice_t *device, char const * const friendlyname) { PTPPropertyValue propval; PTPParams *params = (PTPParams *) device->params; uint16_t ret; if (!ptp_property_issupported(params, PTP_DPC_MTP_DeviceFriendlyName)) { return -1; } propval.str = (char *) friendlyname; ret = ptp_setdevicepropvalue(params, PTP_DPC_MTP_DeviceFriendlyName, &propval, PTP_DTC_STR); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "Error setting friendlyname."); return -1; } return 0; } /** * This retrieves the synchronization partner of an MTP device. This * property should be supported by all MTP devices. * @param device a pointer to the device to get the sync partner for. * @return a newly allocated UTF-8 string representing the synchronization * partner. The string must be freed by the caller after use. * @see LIBMTP_Set_Syncpartner() */ char *LIBMTP_Get_Syncpartner(LIBMTP_mtpdevice_t *device) { PTPPropertyValue propval; char *retstring = NULL; PTPParams *params = (PTPParams *) device->params; uint16_t ret; if (!ptp_property_issupported(params, PTP_DPC_MTP_SynchronizationPartner)) { return NULL; } ret = ptp_getdevicepropvalue(params, PTP_DPC_MTP_SynchronizationPartner, &propval, PTP_DTC_STR); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "Error getting syncpartner."); return NULL; } if (propval.str != NULL) { retstring = strdup(propval.str); free(propval.str); } return retstring; } /** * Sets the synchronization partner of an MTP device. Note that * we have no idea what the effect of setting this to "foobar" * may be. But the general idea seems to be to tell which program * shall synchronize with this device and tell others to leave * it alone. * @param device a pointer to the device to set the sync partner for. * @param syncpartner the new synchronization partner for the device. * @return 0 on success, any other value means failure. * @see LIBMTP_Get_Syncpartner() */ int LIBMTP_Set_Syncpartner(LIBMTP_mtpdevice_t *device, char const * const syncpartner) { PTPPropertyValue propval; PTPParams *params = (PTPParams *) device->params; uint16_t ret; if (!ptp_property_issupported(params, PTP_DPC_MTP_SynchronizationPartner)) { return -1; } propval.str = (char *) syncpartner; ret = ptp_setdevicepropvalue(params, PTP_DPC_MTP_SynchronizationPartner, &propval, PTP_DTC_STR); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "Error setting syncpartner."); return -1; } return 0; } /** * Checks if the device can stora a file of this size or * if it's too big. * @param device a pointer to the device. * @param filesize the size of the file to check whether it will fit. * @param storage a pointer to the storage to try to fit the file on. * @return 0 if the file fits, any other value means failure. */ static int check_if_file_fits(LIBMTP_mtpdevice_t *device, LIBMTP_devicestorage_t *storage, uint64_t const filesize) { PTPParams *params = (PTPParams *) device->params; uint64_t freebytes; int ret; // If we cannot check the storage, no big deal. if (!ptp_operation_issupported(params,PTP_OC_GetStorageInfo)) { return 0; } ret = get_storage_freespace(device, storage, &freebytes); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "check_if_file_fits(): error checking free storage."); return -1; } else { // See if it fits. if (filesize > freebytes) { return -1; } } return 0; } /** * This function retrieves the current battery level on the device. * @param device a pointer to the device to get the battery level for. * @param maximum_level a pointer to a variable that will hold the * maximum level of the battery if the call was successful. * @param current_level a pointer to a variable that will hold the * current level of the battery if the call was successful. * A value of 0 means that the device is on external power. * @return 0 if the storage info was successfully retrieved, any other * means failure. A typical cause of failure is that * the device does not support the battery level property. */ int LIBMTP_Get_Batterylevel(LIBMTP_mtpdevice_t *device, uint8_t * const maximum_level, uint8_t * const current_level) { PTPPropertyValue propval; uint16_t ret; PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; *maximum_level = 0; *current_level = 0; if (FLAG_BROKEN_BATTERY_LEVEL(ptp_usb) || !ptp_property_issupported(params, PTP_DPC_BatteryLevel)) { return -1; } ret = ptp_getdevicepropvalue(params, PTP_DPC_BatteryLevel, &propval, PTP_DTC_UINT8); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Batterylevel(): " "could not get device property value."); return -1; } *maximum_level = device->maximum_battery_level; *current_level = propval.u8; return 0; } /** * Formats device storage (if the device supports the operation). * WARNING: This WILL delete all data from the device. Make sure you've * got confirmation from the user BEFORE you call this function. * * @param device a pointer to the device containing the storage to format. * @param storage the actual storage to format. * @return 0 on success, any other value means failure. */ int LIBMTP_Format_Storage(LIBMTP_mtpdevice_t *device, LIBMTP_devicestorage_t *storage) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; if (!ptp_operation_issupported(params,PTP_OC_FormatStore)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Format_Storage(): " "device does not support formatting storage."); return -1; } ret = ptp_formatstore(params, storage->id); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Format_Storage(): " "failed to format storage."); return -1; } return 0; } /** * Helper function to extract a unicode property off a device. * This is the standard way of retrieveing unicode device * properties as described by the PTP spec. * @param device a pointer to the device to get the property from. * @param unicstring a pointer to a pointer that will hold the * property after this call is completed. * @param property the property to retrieve. * @return 0 on success, any other value means failure. */ static int get_device_unicode_property(LIBMTP_mtpdevice_t *device, char **unicstring, uint16_t property) { PTPPropertyValue propval; PTPParams *params = (PTPParams *) device->params; uint16_t *tmp; uint16_t ret; unsigned int i; if (!ptp_property_issupported(params, property)) { return -1; } // Unicode strings are 16bit unsigned integer arrays. ret = ptp_getdevicepropvalue(params, property, &propval, PTP_DTC_AUINT16); if (ret != PTP_RC_OK) { // TODO: add a note on WHICH property that we failed to get. *unicstring = NULL; add_ptp_error_to_errorstack(device, ret, "get_device_unicode_property(): " "failed to get unicode property."); return -1; } // Extract the actual array. // printf("Array of %d elements\n", propval.a.count); tmp = malloc((propval.a.count + 1)*sizeof(uint16_t)); for (i = 0; i < propval.a.count; i++) { tmp[i] = propval.a.v[i].u16; // printf("%04x ", tmp[i]); } tmp[propval.a.count] = 0x0000U; free(propval.a.v); *unicstring = utf16_to_utf8(device, tmp); free(tmp); return 0; } /** * This function returns the secure time as an XML document string from * the device. * @param device a pointer to the device to get the secure time for. * @param sectime the secure time string as an XML document or NULL if the call * failed or the secure time property is not supported. This string * must be free():ed by the caller after use. * @return 0 on success, any other value means failure. */ int LIBMTP_Get_Secure_Time(LIBMTP_mtpdevice_t *device, char ** const sectime) { return get_device_unicode_property(device, sectime, PTP_DPC_MTP_SecureTime); } /** * This function returns the device (public key) certificate as an * XML document string from the device. * @param device a pointer to the device to get the device certificate for. * @param devcert the device certificate as an XML string or NULL if the call * failed or the device certificate property is not supported. This * string must be free():ed by the caller after use. * @return 0 on success, any other value means failure. */ int LIBMTP_Get_Device_Certificate(LIBMTP_mtpdevice_t *device, char ** const devcert) { return get_device_unicode_property(device, devcert, PTP_DPC_MTP_DeviceCertificate); } /** * This function retrieves a list of supported file types, i.e. the file * types that this device claims it supports, e.g. audio file types that * the device can play etc. This list is mitigated to * include the file types that libmtp can handle, i.e. it will not list * filetypes that libmtp will handle internally like playlists and folders. * @param device a pointer to the device to get the filetype capabilities for. * @param filetypes a pointer to a pointer that will hold the list of * supported filetypes if the call was successful. This list must * be free():ed by the caller after use. * @param length a pointer to a variable that will hold the length of the * list of supported filetypes if the call was successful. * @return 0 on success, any other value means failure. * @see LIBMTP_Get_Filetype_Description() */ int LIBMTP_Get_Supported_Filetypes(LIBMTP_mtpdevice_t *device, uint16_t ** const filetypes, uint16_t * const length) { PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; uint16_t *localtypes; uint16_t localtypelen; uint32_t i; // This is more memory than needed if there are unknown types, but what the heck. localtypes = (uint16_t *) malloc(params->deviceinfo.ImageFormats_len * sizeof(uint16_t)); localtypelen = 0; for (i=0;ideviceinfo.ImageFormats_len;i++) { uint16_t localtype = map_ptp_type_to_libmtp_type(params->deviceinfo.ImageFormats[i]); if (localtype != LIBMTP_FILETYPE_UNKNOWN) { localtypes[localtypelen] = localtype; localtypelen++; } } // The forgotten Ogg support on YP-10 and others... if (FLAG_OGG_IS_UNKNOWN(ptp_usb)) { uint16_t *tmp = (uint16_t *) realloc( localtypes, (params->deviceinfo.ImageFormats_len+1) * sizeof(uint16_t)); if (tmp == NULL) return -ENOMEM; localtypes = tmp; localtypes[localtypelen] = LIBMTP_FILETYPE_OGG; localtypelen++; } // The forgotten FLAC support on Cowon iAudio S9 and others... if (FLAG_FLAC_IS_UNKNOWN(ptp_usb)) { uint16_t *tmp = (uint16_t *) realloc( localtypes, (params->deviceinfo.ImageFormats_len+1) * sizeof(uint16_t)); if (tmp == NULL) return -ENOMEM; localtypes = tmp; localtypes[localtypelen] = LIBMTP_FILETYPE_FLAC; localtypelen++; } *filetypes = localtypes; *length = localtypelen; return 0; } /** * This function checks if the device has some specific capabilities, in * order to avoid calling APIs that may disturb the device. * * @param device a pointer to the device to check the capability on. * @param cap the capability to check. * @return 0 if not supported, any other value means the device has the * requested capability. */ int LIBMTP_Check_Capability(LIBMTP_mtpdevice_t *device, LIBMTP_devicecap_t cap) { switch (cap) { case LIBMTP_DEVICECAP_GetPartialObject: return (ptp_operation_issupported(device->params, PTP_OC_GetPartialObject) || ptp_operation_issupported(device->params, PTP_OC_ANDROID_GetPartialObject64)); case LIBMTP_DEVICECAP_SendPartialObject: return ptp_operation_issupported(device->params, PTP_OC_ANDROID_SendPartialObject); case LIBMTP_DEVICECAP_EditObjects: return (ptp_operation_issupported(device->params, PTP_OC_ANDROID_TruncateObject) && ptp_operation_issupported(device->params, PTP_OC_ANDROID_BeginEditObject) && ptp_operation_issupported(device->params, PTP_OC_ANDROID_EndEditObject)); case LIBMTP_DEVICECAP_MoveObject: return ptp_operation_issupported(device->params, PTP_OC_MoveObject); case LIBMTP_DEVICECAP_CopyObject: return ptp_operation_issupported(device->params, PTP_OC_CopyObject); /* * Handle other capabilities here, this is also a good place to * blacklist some advanced operations on specific devices if need * be. */ default: break; } return 0; } /** * This function updates all the storage id's of a device and their * properties, then creates a linked list and puts the list head into * the device struct. It also optionally sorts this list. If you want * to display storage information in your application you should call * this function, then dereference the device struct * (device->storage) to get out information on the storage. * * You need to call this every time you want to update the * device->storage list, for example anytime you need * to check available storage somewhere. * * WARNING: since this list is dynamically updated, do not * reference its fields in external applications by pointer! E.g * do not put a reference to any char * field. instead * strncpy() it! * * @param device a pointer to the device to get the storage for. * @param sortby an integer that determines the sorting of the storage list. * Valid sort methods are defined in libmtp.h with beginning with * LIBMTP_STORAGE_SORTBY_. 0 or LIBMTP_STORAGE_SORTBY_NOTSORTED to not * sort. * @return 0 on success, 1 success but only with storage id's, storage * properities could not be retrieved and -1 means failure. */ int LIBMTP_Get_Storage(LIBMTP_mtpdevice_t *device, int const sortby) { uint32_t i = 0; PTPStorageInfo storageInfo; PTPParams *params = (PTPParams *) device->params; PTPStorageIDs storageIDs; LIBMTP_devicestorage_t *storage = NULL; LIBMTP_devicestorage_t *storageprev = NULL; if (device->storage != NULL) free_storage_list(device); // if (!ptp_operation_issupported(params,PTP_OC_GetStorageIDs)) // return -1; if (ptp_getstorageids (params, &storageIDs) != PTP_RC_OK) return -1; if (storageIDs.n < 1) return -1; if (!ptp_operation_issupported(params,PTP_OC_GetStorageInfo)) { for (i = 0; i < storageIDs.n; i++) { storage = (LIBMTP_devicestorage_t *) malloc(sizeof(LIBMTP_devicestorage_t)); storage->prev = storageprev; if (storageprev != NULL) storageprev->next = storage; if (device->storage == NULL) device->storage = storage; storage->id = storageIDs.Storage[i]; storage->StorageType = PTP_ST_Undefined; storage->FilesystemType = PTP_FST_Undefined; storage->AccessCapability = PTP_AC_ReadWrite; storage->MaxCapacity = (uint64_t) -1; storage->FreeSpaceInBytes = (uint64_t) -1; storage->FreeSpaceInObjects = (uint64_t) -1; storage->StorageDescription = strdup("Unknown storage"); storage->VolumeIdentifier = strdup("Unknown volume"); storage->next = NULL; storageprev = storage; } free(storageIDs.Storage); return 1; } else { for (i = 0; i < storageIDs.n; i++) { uint16_t ret; ret = ptp_getstorageinfo(params, storageIDs.Storage[i], &storageInfo); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Storage(): " "Could not get storage info."); if (device->storage != NULL) { free_storage_list(device); } return -1; } storage = (LIBMTP_devicestorage_t *) malloc(sizeof(LIBMTP_devicestorage_t)); storage->prev = storageprev; if (storageprev != NULL) storageprev->next = storage; if (device->storage == NULL) device->storage = storage; storage->id = storageIDs.Storage[i]; storage->StorageType = storageInfo.StorageType; storage->FilesystemType = storageInfo.FilesystemType; storage->AccessCapability = storageInfo.AccessCapability; storage->MaxCapacity = storageInfo.MaxCapability; storage->FreeSpaceInBytes = storageInfo.FreeSpaceInBytes; storage->FreeSpaceInObjects = storageInfo.FreeSpaceInImages; storage->StorageDescription = storageInfo.StorageDescription; storage->VolumeIdentifier = storageInfo.VolumeLabel; storage->next = NULL; storageprev = storage; } if (storage != NULL) storage->next = NULL; sort_storage_by(device,sortby); free(storageIDs.Storage); return 0; } } /** * This creates a new file metadata structure and allocates memory * for it. Notice that if you add strings to this structure they * will be freed by the corresponding LIBMTP_destroy_file_t * operation later, so be careful of using strdup() when assigning * strings, e.g.: * * 
 * LIBMTP_file_t *file = LIBMTP_new_file_t();
 * file->filename = strdup(namestr);
 * ....
 * LIBMTP_destroy_file_t(file);
 *
* * @return a pointer to the newly allocated metadata structure. * @see LIBMTP_destroy_file_t() */ LIBMTP_file_t *LIBMTP_new_file_t(void) { LIBMTP_file_t *new = (LIBMTP_file_t *) malloc(sizeof(LIBMTP_file_t)); if (new == NULL) { return NULL; } new->filename = NULL; new->item_id = 0; new->parent_id = 0; new->storage_id = 0; new->filesize = 0; new->modificationdate = 0; new->filetype = LIBMTP_FILETYPE_UNKNOWN; new->next = NULL; return new; } /** * This destroys a file metadata structure and deallocates the memory * used by it, including any strings. Never use a file metadata * structure again after calling this function on it. * @param file the file metadata to destroy. * @see LIBMTP_new_file_t() */ void LIBMTP_destroy_file_t(LIBMTP_file_t *file) { if (file == NULL) { return; } if (file->filename != NULL) free(file->filename); free(file); return; } /** * Helper function that takes one PTP object and creates a * LIBMTP_file_t metadata entry. */ static LIBMTP_file_t *obj2file(LIBMTP_mtpdevice_t *device, PTPObject *ob) { PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; LIBMTP_file_t *file; unsigned int i; // Allocate a new file type file = LIBMTP_new_file_t(); file->parent_id = ob->oi.ParentObject; file->storage_id = ob->oi.StorageID; if (ob->oi.Filename != NULL) { file->filename = strdup(ob->oi.Filename); } // Set the filetype file->filetype = map_ptp_type_to_libmtp_type(ob->oi.ObjectFormat); /* * A special quirk for devices that doesn't quite * remember that some files marked as "unknown" type are * actually OGG or FLAC files. We look at the filename extension * and see if it happens that this was atleast named "ogg" or "flac" * and fall back on this heuristic approach in that case, * for these bugged devices only. */ if (file->filetype == LIBMTP_FILETYPE_UNKNOWN) { if ((FLAG_IRIVER_OGG_ALZHEIMER(ptp_usb) || FLAG_OGG_IS_UNKNOWN(ptp_usb)) && has_ogg_extension(file->filename)) { file->filetype = LIBMTP_FILETYPE_OGG; } if (FLAG_FLAC_IS_UNKNOWN(ptp_usb) && has_flac_extension(file->filename)) { file->filetype = LIBMTP_FILETYPE_FLAC; } } // Set the modification date file->modificationdate = ob->oi.ModificationDate; // We only have 32-bit file size here; later we use the PTP_OPC_ObjectSize property file->filesize = ob->oi.ObjectCompressedSize; // This is a unique ID so we can keep track of the file. file->item_id = ob->oid; /* * If we have a cached, large set of metadata, then use it! */ if (ob->mtpprops) { MTPProperties *prop = ob->mtpprops; for (i=0; i < ob->nrofmtpprops; i++, prop++) { // Pick ObjectSize here... if (prop->property == PTP_OPC_ObjectSize) { // This may already be set, but this 64bit precision value // is better than the PTP 32bit value, so let it override. if (device->object_bitsize == 64) { file->filesize = prop->propval.u64; } else { file->filesize = prop->propval.u32; } break; } } } else if (ptp_operation_issupported(params,PTP_OC_MTP_GetObjectPropsSupported)) { uint16_t *props = NULL; uint32_t propcnt = 0; int ret; // First see which properties can be retrieved for this object format ret = ptp_mtp_getobjectpropssupported(params, map_libmtp_type_to_ptp_type(file->filetype), &propcnt, &props); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "obj2file: call to ptp_mtp_getobjectpropssupported() failed."); // Silently fall through. } else { for (i = 0; i < propcnt; i++) { switch (props[i]) { case PTP_OPC_ObjectSize: if (device->object_bitsize == 64) { file->filesize = get_u64_from_object(device, file->item_id, PTP_OPC_ObjectSize, 0); } else { file->filesize = get_u32_from_object(device, file->item_id, PTP_OPC_ObjectSize, 0); } break; default: break; } } free(props); } } return file; } /** * This function retrieves the metadata for a single file off * the device. * * Do not call this function repeatedly! The file handles are linearly * searched O(n) and the call may involve (slow) USB traffic, so use * LIBMTP_Get_Filelisting() and cache the file, preferably * as an efficient data structure such as a hash list. * * Incidentally this function will return metadata for * a folder (association) as well, but this is not a proper use * of it, it is intended for file manipulation, not folder manipulation. * * @param device a pointer to the device to get the file metadata from. * @param fileid the object ID of the file that you want the metadata for. * @return a metadata entry on success or NULL on failure. * @see LIBMTP_Get_Filelisting() */ LIBMTP_file_t *LIBMTP_Get_Filemetadata(LIBMTP_mtpdevice_t *device, uint32_t const fileid) { PTPParams *params = (PTPParams *) device->params; uint16_t ret; PTPObject *ob; // Get all the handles if we haven't already done that // (Only on cached devices.) if (device->cached && params->nrofobjects == 0) { flush_handles(device); } ret = ptp_object_want(params, fileid, PTPOBJECT_OBJECTINFO_LOADED|PTPOBJECT_MTPPROPLIST_LOADED, &ob); if (ret != PTP_RC_OK) return NULL; return obj2file(device, ob); } /** * THIS FUNCTION IS DEPRECATED. PLEASE UPDATE YOUR CODE IN ORDER * NOT TO USE IT. * @see LIBMTP_Get_Filelisting_With_Callback() */ LIBMTP_file_t *LIBMTP_Get_Filelisting(LIBMTP_mtpdevice_t *device) { LIBMTP_INFO("WARNING: LIBMTP_Get_Filelisting() is deprecated.\n"); LIBMTP_INFO("WARNING: please update your code to use LIBMTP_Get_Filelisting_With_Callback()\n"); return LIBMTP_Get_Filelisting_With_Callback(device, NULL, NULL); } /** * This returns a long list of all files available * on the current MTP device. Folders will not be returned, but abstract * entities like playlists and albums will show up as "files". Typical usage: * * 
 * LIBMTP_file_t *filelist;
 *
 * filelist = LIBMTP_Get_Filelisting_With_Callback(device, callback, data);
 * while (filelist != NULL) {
 *   LIBMTP_file_t *tmp;
 *
 *   // Do something on each element in the list here...
 *   tmp = filelist;
 *   filelist = filelist->next;
 *   LIBMTP_destroy_file_t(tmp);
 * }
 *
* * If you want to group your file listing by storage (per storage unit) or * arrange files into folders, you must dereference the storage_id * and/or parent_id field of the returned LIBMTP_file_t * struct. To arrange by folders or files you typically have to create the proper * trees by calls to LIBMTP_Get_Storage() and/or * LIBMTP_Get_Folder_List() first. * * @param device a pointer to the device to get the file listing for. * @param callback a function to be called during the tracklisting retrieveal * for displaying progress bars etc, or NULL if you don't want * any callbacks. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return a list of files that can be followed using the next * field of the LIBMTP_file_t data structure. * Each of the metadata tags must be freed after use, and may * contain only partial metadata information, i.e. one or several * fields may be NULL or 0. * @see LIBMTP_Get_Filemetadata() */ LIBMTP_file_t *LIBMTP_Get_Filelisting_With_Callback(LIBMTP_mtpdevice_t *device, LIBMTP_progressfunc_t const callback, void const * const data) { uint32_t i = 0; LIBMTP_file_t *retfiles = NULL; LIBMTP_file_t *curfile = NULL; PTPParams *params = (PTPParams *) device->params; // Get all the handles if we haven't already done that if (params->nrofobjects == 0) { flush_handles(device); } for (i = 0; i < params->nrofobjects; i++) { LIBMTP_file_t *file; PTPObject *ob; if (callback != NULL) callback(i, params->nrofobjects, data); ob = ¶ms->objects[i]; if (ob->oi.ObjectFormat == PTP_OFC_Association) { // MTP use this object format for folders which means // these "files" will turn up on a folder listing instead. continue; } // Look up metadata file = obj2file(device, ob); if (file == NULL) { continue; } // Add track to a list that will be returned afterwards. if (retfiles == NULL) { retfiles = file; curfile = file; } else { curfile->next = file; curfile = file; } // Call listing callback // double progressPercent = (double)i*(double)100.0 / (double)params->handles.n; } // Handle counting loop return retfiles; } /** * This function retrieves the contents of a certain folder * with id parent on a certain storage on a certain device. * The result contains both files and folders. * The device used with this operations must have been opened with * LIBMTP_Open_Raw_Device_Uncached() or it will fail. * * NOTE: the request will always perform I/O with the device. * @param device a pointer to the MTP device to report info from. * @param storage a storage on the device to report info from. If * 0 is passed in, the files for the given parent will be * searched across all available storages. * @param parent the parent folder id. */ LIBMTP_file_t * LIBMTP_Get_Files_And_Folders(LIBMTP_mtpdevice_t *device, uint32_t const storage, uint32_t const parent) { PTPParams *params = (PTPParams *) device->params; LIBMTP_file_t *retfiles = NULL; LIBMTP_file_t *curfile = NULL; PTPObjectHandles currentHandles; uint32_t storageid; uint16_t ret; unsigned int i = 0; if (device->cached) { // This function is only supposed to be used by devices // opened as uncached! LIBMTP_ERROR("tried to use %s on a cached device!\n", __func__); return NULL; } if (storage == 0) storageid = PTP_GOH_ALL_STORAGE; else storageid = storage; ret = ptp_getobjecthandles(params, storageid, PTP_GOH_ALL_FORMATS, parent, ¤tHandles); if (ret != PTP_RC_OK) { char buf[80]; sprintf(buf,"LIBMTP_Get_Files_And_Folders(): could not get object handles of %08x.", parent); add_ptp_error_to_errorstack(device, ret, buf); return NULL; } if (currentHandles.Handler == NULL || currentHandles.n == 0) return NULL; for (i = 0; i < currentHandles.n; i++) { LIBMTP_file_t *file; // Get metadata for one file, if it fails, try next file file = LIBMTP_Get_Filemetadata(device, currentHandles.Handler[i]); if (file == NULL) continue; // Add track to a list that will be returned afterwards. if (curfile == NULL) { curfile = file; retfiles = file; } else { curfile->next = file; curfile = file; } } free(currentHandles.Handler); // Return a pointer to the original first file // in the big list. return retfiles; } /** * This function retrieves the list of ids of files and folders in a certain * folder with id parent on a certain storage on a certain device. * The device used with this operations must have been opened with * LIBMTP_Open_Raw_Device_Uncached() or it will fail. * * NOTE: the request will always perform I/O with the device. * @param device a pointer to the MTP device to report info from. * @param storage a storage on the device to report info from. If * 0 is passed in, the files for the given parent will be * searched across all available storages. * @param parent the parent folder id. * @param out the pointer where the array of ids is returned. It is * set only when the returned value > 0. The caller takes the * ownership of the array and has to free() it. * @return the length of the returned array or -1 in case of failure. */ int LIBMTP_Get_Children(LIBMTP_mtpdevice_t *device, uint32_t const storage, uint32_t const parent, uint32_t **out) { PTPParams *params = (PTPParams *) device->params; PTPObjectHandles currentHandles; uint32_t storageid; uint16_t ret; if (device->cached) { // This function is only supposed to be used by devices // opened as uncached! LIBMTP_ERROR("tried to use %s on a cached device!\n", __func__); return -1; } if (storage == 0) storageid = PTP_GOH_ALL_STORAGE; else storageid = storage; ret = ptp_getobjecthandles(params, storageid, PTP_GOH_ALL_FORMATS, parent, ¤tHandles); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Children(): could not get object handles."); return -1; } if (currentHandles.Handler == NULL || currentHandles.n == 0) return 0; *out = currentHandles.Handler; return currentHandles.n; } /** * This creates a new track metadata structure and allocates memory * for it. Notice that if you add strings to this structure they * will be freed by the corresponding LIBMTP_destroy_track_t * operation later, so be careful of using strdup() when assigning * strings, e.g.: * * 
 * LIBMTP_track_t *track = LIBMTP_new_track_t();
 * track->title = strdup(titlestr);
 * ....
 * LIBMTP_destroy_track_t(track);
 *
* * @return a pointer to the newly allocated metadata structure. * @see LIBMTP_destroy_track_t() */ LIBMTP_track_t *LIBMTP_new_track_t(void) { LIBMTP_track_t *new = (LIBMTP_track_t *) malloc(sizeof(LIBMTP_track_t)); if (new == NULL) { return NULL; } new->item_id = 0; new->parent_id = 0; new->storage_id = 0; new->title = NULL; new->artist = NULL; new->composer = NULL; new->album = NULL; new->genre = NULL; new->date = NULL; new->filename = NULL; new->duration = 0; new->tracknumber = 0; new->filesize = 0; new->filetype = LIBMTP_FILETYPE_UNKNOWN; new->samplerate = 0; new->nochannels = 0; new->wavecodec = 0; new->bitrate = 0; new->bitratetype = 0; new->rating = 0; new->usecount = 0; new->modificationdate = 0; new->next = NULL; return new; } /** * This destroys a track metadata structure and deallocates the memory * used by it, including any strings. Never use a track metadata * structure again after calling this function on it. * @param track the track metadata to destroy. * @see LIBMTP_new_track_t() */ void LIBMTP_destroy_track_t(LIBMTP_track_t *track) { if (track == NULL) { return; } if (track->title != NULL) free(track->title); if (track->artist != NULL) free(track->artist); if (track->composer != NULL) free(track->composer); if (track->album != NULL) free(track->album); if (track->genre != NULL) free(track->genre); if (track->date != NULL) free(track->date); if (track->filename != NULL) free(track->filename); free(track); return; } /** * This function maps and copies a property onto the track metadata if applicable. */ static void pick_property_to_track_metadata(LIBMTP_mtpdevice_t *device, MTPProperties *prop, LIBMTP_track_t *track) { switch (prop->property) { case PTP_OPC_Name: if (prop->propval.str != NULL) track->title = strdup(prop->propval.str); else track->title = NULL; break; case PTP_OPC_Artist: if (prop->propval.str != NULL) track->artist = strdup(prop->propval.str); else track->artist = NULL; break; case PTP_OPC_Composer: if (prop->propval.str != NULL) track->composer = strdup(prop->propval.str); else track->composer = NULL; break; case PTP_OPC_Duration: track->duration = prop->propval.u32; break; case PTP_OPC_Track: track->tracknumber = prop->propval.u16; break; case PTP_OPC_Genre: if (prop->propval.str != NULL) track->genre = strdup(prop->propval.str); else track->genre = NULL; break; case PTP_OPC_AlbumName: if (prop->propval.str != NULL) track->album = strdup(prop->propval.str); else track->album = NULL; break; case PTP_OPC_OriginalReleaseDate: if (prop->propval.str != NULL) track->date = strdup(prop->propval.str); else track->date = NULL; break; // These are, well not so important. case PTP_OPC_SampleRate: track->samplerate = prop->propval.u32; break; case PTP_OPC_NumberOfChannels: track->nochannels = prop->propval.u16; break; case PTP_OPC_AudioWAVECodec: track->wavecodec = prop->propval.u32; break; case PTP_OPC_AudioBitRate: track->bitrate = prop->propval.u32; break; case PTP_OPC_BitRateType: track->bitratetype = prop->propval.u16; break; case PTP_OPC_Rating: track->rating = prop->propval.u16; break; case PTP_OPC_UseCount: track->usecount = prop->propval.u32; break; case PTP_OPC_ObjectSize: if (device->object_bitsize == 64) { track->filesize = prop->propval.u64; } else { track->filesize = prop->propval.u32; } break; default: break; } } /** * This function retrieves the track metadata for a track * given by a unique ID. * @param device a pointer to the device to get the track metadata off. * @param objectformat the object format of this track, so we know what it supports. * @param track a metadata set to fill in. */ static void get_track_metadata(LIBMTP_mtpdevice_t *device, uint16_t objectformat, LIBMTP_track_t *track) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; uint32_t i; MTPProperties *prop; PTPObject *ob; /* * If we have a cached, large set of metadata, then use it! */ ret = ptp_object_want(params, track->item_id, PTPOBJECT_MTPPROPLIST_LOADED, &ob); if (ob->mtpprops) { prop = ob->mtpprops; for (i=0;inrofmtpprops;i++,prop++) pick_property_to_track_metadata(device, prop, track); } else { uint16_t *props = NULL; uint32_t propcnt = 0; // First see which properties can be retrieved for this object format ret = ptp_mtp_getobjectpropssupported(params, map_libmtp_type_to_ptp_type(track->filetype), &propcnt, &props); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "get_track_metadata(): call to ptp_mtp_getobjectpropssupported() failed."); // Just bail out for now, nothing is ever set. return; } else { for (i=0;ititle = get_string_from_object(device, track->item_id, PTP_OPC_Name); break; case PTP_OPC_Artist: track->artist = get_string_from_object(device, track->item_id, PTP_OPC_Artist); break; case PTP_OPC_Composer: track->composer = get_string_from_object(device, track->item_id, PTP_OPC_Composer); break; case PTP_OPC_Duration: track->duration = get_u32_from_object(device, track->item_id, PTP_OPC_Duration, 0); break; case PTP_OPC_Track: track->tracknumber = get_u16_from_object(device, track->item_id, PTP_OPC_Track, 0); break; case PTP_OPC_Genre: track->genre = get_string_from_object(device, track->item_id, PTP_OPC_Genre); break; case PTP_OPC_AlbumName: track->album = get_string_from_object(device, track->item_id, PTP_OPC_AlbumName); break; case PTP_OPC_OriginalReleaseDate: track->date = get_string_from_object(device, track->item_id, PTP_OPC_OriginalReleaseDate); break; // These are, well not so important. case PTP_OPC_SampleRate: track->samplerate = get_u32_from_object(device, track->item_id, PTP_OPC_SampleRate, 0); break; case PTP_OPC_NumberOfChannels: track->nochannels = get_u16_from_object(device, track->item_id, PTP_OPC_NumberOfChannels, 0); break; case PTP_OPC_AudioWAVECodec: track->wavecodec = get_u32_from_object(device, track->item_id, PTP_OPC_AudioWAVECodec, 0); break; case PTP_OPC_AudioBitRate: track->bitrate = get_u32_from_object(device, track->item_id, PTP_OPC_AudioBitRate, 0); break; case PTP_OPC_BitRateType: track->bitratetype = get_u16_from_object(device, track->item_id, PTP_OPC_BitRateType, 0); break; case PTP_OPC_Rating: track->rating = get_u16_from_object(device, track->item_id, PTP_OPC_Rating, 0); break; case PTP_OPC_UseCount: track->usecount = get_u32_from_object(device, track->item_id, PTP_OPC_UseCount, 0); break; case PTP_OPC_ObjectSize: if (device->object_bitsize == 64) { track->filesize = get_u64_from_object(device, track->item_id, PTP_OPC_ObjectSize, 0); } else { track->filesize = (uint64_t) get_u32_from_object(device, track->item_id, PTP_OPC_ObjectSize, 0); } break; } } free(props); } } } /** * THIS FUNCTION IS DEPRECATED. PLEASE UPDATE YOUR CODE IN ORDER * NOT TO USE IT. * @see LIBMTP_Get_Tracklisting_With_Callback() */ LIBMTP_track_t *LIBMTP_Get_Tracklisting(LIBMTP_mtpdevice_t *device) { LIBMTP_INFO("WARNING: LIBMTP_Get_Tracklisting() is deprecated.\n"); LIBMTP_INFO("WARNING: please update your code to use LIBMTP_Get_Tracklisting_With_Callback()\n"); return LIBMTP_Get_Tracklisting_With_Callback(device, NULL, NULL); } /** * This returns a long list of all tracks available on the current MTP device. * Tracks include multimedia objects, both music tracks and video tracks. * Typical usage: * * 
 * LIBMTP_track_t *tracklist;
 *
 * tracklist = LIBMTP_Get_Tracklisting_With_Callback(device, callback, data);
 * while (tracklist != NULL) {
 *   LIBMTP_track_t *tmp;
 *
 *   // Do something on each element in the list here...
 *   tmp = tracklist;
 *   tracklist = tracklist->next;
 *   LIBMTP_destroy_track_t(tmp);
 * }
 *
* * If you want to group your track listing by storage (per storage unit) or * arrange tracks into folders, you must dereference the storage_id * and/or parent_id field of the returned LIBMTP_track_t * struct. To arrange by folders or files you typically have to create the proper * trees by calls to LIBMTP_Get_Storage() and/or * LIBMTP_Get_Folder_List() first. * * @param device a pointer to the device to get the track listing for. * @param callback a function to be called during the tracklisting retrieveal * for displaying progress bars etc, or NULL if you don't want * any callbacks. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return a list of tracks that can be followed using the next * field of the LIBMTP_track_t data structure. * Each of the metadata tags must be freed after use, and may * contain only partial metadata information, i.e. one or several * fields may be NULL or 0. * @see LIBMTP_Get_Trackmetadata() */ LIBMTP_track_t *LIBMTP_Get_Tracklisting_With_Callback(LIBMTP_mtpdevice_t *device, LIBMTP_progressfunc_t const callback, void const * const data) { return LIBMTP_Get_Tracklisting_With_Callback_For_Storage(device, 0, callback, data); } /** * This returns a long list of all tracks available on the current MTP device. * Tracks include multimedia objects, both music tracks and video tracks. * Typical usage: * * 
 * LIBMTP_track_t *tracklist;
 *
 * tracklist = LIBMTP_Get_Tracklisting_With_Callback_For_Storage(device, storage_id, callback, data);
 * while (tracklist != NULL) {
 *   LIBMTP_track_t *tmp;
 *
 *   // Do something on each element in the list here...
 *   tmp = tracklist;
 *   tracklist = tracklist->next;
 *   LIBMTP_destroy_track_t(tmp);
 * }
 *
* * If you want to group your track listing by storage (per storage unit) or * arrange tracks into folders, you must dereference the storage_id * and/or parent_id field of the returned LIBMTP_track_t * struct. To arrange by folders or files you typically have to create the proper * trees by calls to LIBMTP_Get_Storage() and/or * LIBMTP_Get_Folder_List() first. * * @param device a pointer to the device to get the track listing for. * @param storage_id ID of device storage (if null, no filter) * @param callback a function to be called during the tracklisting retrieveal * for displaying progress bars etc, or NULL if you don't want * any callbacks. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return a list of tracks that can be followed using the next * field of the LIBMTP_track_t data structure. * Each of the metadata tags must be freed after use, and may * contain only partial metadata information, i.e. one or several * fields may be NULL or 0. * @see LIBMTP_Get_Trackmetadata() */ LIBMTP_track_t *LIBMTP_Get_Tracklisting_With_Callback_For_Storage(LIBMTP_mtpdevice_t *device, uint32_t const storage_id, LIBMTP_progressfunc_t const callback, void const * const data) { uint32_t i = 0; LIBMTP_track_t *retracks = NULL; LIBMTP_track_t *curtrack = NULL; PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; // Get all the handles if we haven't already done that if (params->nrofobjects == 0) { flush_handles(device); } for (i = 0; i < params->nrofobjects; i++) { LIBMTP_track_t *track; PTPObject *ob; LIBMTP_filetype_t mtptype; if (callback != NULL) callback(i, params->nrofobjects, data); ob = ¶ms->objects[i]; mtptype = map_ptp_type_to_libmtp_type(ob->oi.ObjectFormat); // Ignore stuff we don't know how to handle... // TODO: get this list as an intersection of the sets // supported by the device and the from the device and // all known track files? if (!LIBMTP_FILETYPE_IS_TRACK(mtptype) && // This row lets through undefined files for examination since they may be forgotten OGG files. (ob->oi.ObjectFormat != PTP_OFC_Undefined || (!FLAG_IRIVER_OGG_ALZHEIMER(ptp_usb) && !FLAG_OGG_IS_UNKNOWN(ptp_usb) && !FLAG_FLAC_IS_UNKNOWN(ptp_usb))) ) { //printf("Not a music track (name: %s format: %d), skipping...\n", oi->Filename, oi->ObjectFormat); continue; } // Ignore stuff that isn't into the storage device if ((storage_id != 0) && (ob->oi.StorageID != storage_id )) continue; // Allocate a new track type track = LIBMTP_new_track_t(); // This is some sort of unique ID so we can keep track of the track. track->item_id = ob->oid; track->parent_id = ob->oi.ParentObject; track->storage_id = ob->oi.StorageID; track->modificationdate = ob->oi.ModificationDate; track->filetype = mtptype; // Original file-specific properties track->filesize = ob->oi.ObjectCompressedSize; if (ob->oi.Filename != NULL) { track->filename = strdup(ob->oi.Filename); } get_track_metadata(device, ob->oi.ObjectFormat, track); /* * A special quirk for iriver devices that doesn't quite * remember that some files marked as "unknown" type are * actually OGG or FLAC files. We look at the filename extension * and see if it happens that this was atleast named "ogg" or "flac" * and fall back on this heuristic approach in that case, * for these bugged devices only. */ if (track->filetype == LIBMTP_FILETYPE_UNKNOWN && track->filename != NULL) { if ((FLAG_IRIVER_OGG_ALZHEIMER(ptp_usb) || FLAG_OGG_IS_UNKNOWN(ptp_usb)) && has_ogg_extension(track->filename)) track->filetype = LIBMTP_FILETYPE_OGG; else if (FLAG_FLAC_IS_UNKNOWN(ptp_usb) && has_flac_extension(track->filename)) track->filetype = LIBMTP_FILETYPE_FLAC; else { // This was not an OGG/FLAC file so discard it and continue LIBMTP_destroy_track_t(track); continue; } } // Add track to a list that will be returned afterwards. if (retracks == NULL) { retracks = track; curtrack = track; } else { curtrack->next = track; curtrack = track; } // Call listing callback // double progressPercent = (double)i*(double)100.0 / (double)params->handles.n; } // Handle counting loop return retracks; } /** * This function retrieves the metadata for a single track off * the device. * * Do not call this function repeatedly! The track handles are linearly * searched O(n) and the call may involve (slow) USB traffic, so use * LIBMTP_Get_Tracklisting() and cache the tracks, preferably * as an efficient data structure such as a hash list. * * @param device a pointer to the device to get the track metadata from. * @param trackid the object ID of the track that you want the metadata for. * @return a track metadata entry on success or NULL on failure. * @see LIBMTP_Get_Tracklisting() */ LIBMTP_track_t *LIBMTP_Get_Trackmetadata(LIBMTP_mtpdevice_t *device, uint32_t const trackid) { PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; PTPObject *ob; LIBMTP_track_t *track; LIBMTP_filetype_t mtptype; uint16_t ret; // Get all the handles if we haven't already done that if (params->nrofobjects == 0) flush_handles(device); ret = ptp_object_want (params, trackid, PTPOBJECT_OBJECTINFO_LOADED, &ob); if (ret != PTP_RC_OK) return NULL; mtptype = map_ptp_type_to_libmtp_type(ob->oi.ObjectFormat); // Ignore stuff we don't know how to handle... if (!LIBMTP_FILETYPE_IS_TRACK(mtptype) && /* * This row lets through undefined files for examination * since they may be forgotten OGG or FLAC files. */ (ob->oi.ObjectFormat != PTP_OFC_Undefined || (!FLAG_IRIVER_OGG_ALZHEIMER(ptp_usb) && !FLAG_OGG_IS_UNKNOWN(ptp_usb) && !FLAG_FLAC_IS_UNKNOWN(ptp_usb))) ) { //printf("Not a music track (name: %s format: %d), skipping...\n", oi->Filename, oi->ObjectFormat); return NULL; } // Allocate a new track type track = LIBMTP_new_track_t(); // This is some sort of unique ID so we can keep track of the track. track->item_id = ob->oid; track->parent_id = ob->oi.ParentObject; track->storage_id = ob->oi.StorageID; track->modificationdate = ob->oi.ModificationDate; track->filetype = mtptype; // Original file-specific properties track->filesize = ob->oi.ObjectCompressedSize; if (ob->oi.Filename != NULL) { track->filename = strdup(ob->oi.Filename); } /* * A special quirk for devices that doesn't quite * remember that some files marked as "unknown" type are * actually OGG or FLAC files. We look at the filename extension * and see if it happens that this was atleast named "ogg" * and fall back on this heuristic approach in that case, * for these bugged devices only. */ if (track->filetype == LIBMTP_FILETYPE_UNKNOWN && track->filename != NULL) { if ((FLAG_IRIVER_OGG_ALZHEIMER(ptp_usb) || FLAG_OGG_IS_UNKNOWN(ptp_usb)) && has_ogg_extension(track->filename)) track->filetype = LIBMTP_FILETYPE_OGG; else if (FLAG_FLAC_IS_UNKNOWN(ptp_usb) && has_flac_extension(track->filename)) track->filetype = LIBMTP_FILETYPE_FLAC; else { // This was not an OGG/FLAC file so discard it LIBMTP_destroy_track_t(track); return NULL; } } get_track_metadata(device, ob->oi.ObjectFormat, track); return track; } /** * This is a manual conversion from MTPDataGetFunc to PTPDataGetFunc * to isolate the internal type. */ static uint16_t get_func_wrapper(PTPParams* params, void* priv, unsigned long wantlen, unsigned char *data, unsigned long *gotlen) { MTPDataHandler *handler = (MTPDataHandler *)priv; uint16_t ret; uint32_t local_gotlen = 0; ret = handler->getfunc(params, handler->priv, wantlen, data, &local_gotlen); *gotlen = local_gotlen; switch (ret) { case LIBMTP_HANDLER_RETURN_OK: return PTP_RC_OK; case LIBMTP_HANDLER_RETURN_ERROR: return PTP_ERROR_IO; case LIBMTP_HANDLER_RETURN_CANCEL: return PTP_ERROR_CANCEL; default: return PTP_ERROR_IO; } } /** * This is a manual conversion from MTPDataPutFunc to PTPDataPutFunc * to isolate the internal type. */ static uint16_t put_func_wrapper(PTPParams* params, void* priv, unsigned long sendlen, unsigned char *data) { MTPDataHandler *handler = (MTPDataHandler *)priv; uint16_t ret; uint32_t local_putlen = 0; ret = handler->putfunc(params, handler->priv, sendlen, data, &local_putlen); switch (ret) { case LIBMTP_HANDLER_RETURN_OK: if (local_putlen != sendlen) return PTP_ERROR_IO; return PTP_RC_OK; case LIBMTP_HANDLER_RETURN_ERROR: return PTP_ERROR_IO; case LIBMTP_HANDLER_RETURN_CANCEL: return PTP_ERROR_CANCEL; default: return PTP_ERROR_IO; } } /** * This gets a file off the device to a local file identified * by a filename. * @param device a pointer to the device to get the track from. * @param id the file ID of the file to retrieve. * @param path a filename to use for the retrieved file. * @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. * @see LIBMTP_Get_File_To_File_Descriptor() */ int LIBMTP_Get_File_To_File(LIBMTP_mtpdevice_t *device, uint32_t const id, char const * const path, LIBMTP_progressfunc_t const callback, void const * const data) { int fd = -1; int ret; // Sanity check if (path == NULL) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Get_File_To_File(): Bad arguments, path was NULL."); return -1; } // Open file #ifdef __WIN32__ #ifdef USE_WINDOWS_IO_H if ( (fd = _open(path, O_RDWR|O_CREAT|O_TRUNC|O_BINARY,_S_IREAD)) == -1 ) { #else if ( (fd = open(path, O_RDWR|O_CREAT|O_TRUNC|O_BINARY,S_IRWXU)) == -1 ) { #endif #else if ( (fd = open(path, O_RDWR|O_CREAT|O_TRUNC,S_IRWXU|S_IRGRP)) == -1) { #endif add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Get_File_To_File(): Could not create file."); return -1; } ret = LIBMTP_Get_File_To_File_Descriptor(device, id, fd, callback, data); // Close file close(fd); // Delete partial file. if (ret == -1) { unlink(path); } return ret; } /** * This gets a file off the device to a file identified * by a file descriptor. * * This function can potentially be used for streaming * files off the device for playback or broadcast for example, * by downloading the file into a stream sink e.g. a socket. * * @param device a pointer to the device to get the file from. * @param id the file ID of the file to retrieve. * @param fd a local file descriptor to write the file to. * @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. * @see LIBMTP_Get_File_To_File() */ int LIBMTP_Get_File_To_File_Descriptor(LIBMTP_mtpdevice_t *device, uint32_t const id, int const fd, LIBMTP_progressfunc_t const callback, void const * const data) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; LIBMTP_file_t *mtpfile = LIBMTP_Get_Filemetadata(device, id); if (mtpfile == NULL) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Get_File_To_File_Descriptor(): Could not get object info."); return -1; } if (mtpfile->filetype == LIBMTP_FILETYPE_FOLDER) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Get_File_To_File_Descriptor(): Bad object format."); LIBMTP_destroy_file_t (mtpfile); return -1; } // Callbacks ptp_usb->callback_active = 1; ptp_usb->current_transfer_total = mtpfile->filesize + PTP_USB_BULK_HDR_LEN+sizeof(uint32_t); // Request length, one parameter ptp_usb->current_transfer_complete = 0; ptp_usb->current_transfer_callback = callback; ptp_usb->current_transfer_callback_data = data; // Don't need mtpfile anymore LIBMTP_destroy_file_t(mtpfile); ret = ptp_getobject_tofd(params, id, fd); ptp_usb->callback_active = 0; ptp_usb->current_transfer_callback = NULL; ptp_usb->current_transfer_callback_data = NULL; if (ret == PTP_ERROR_CANCEL) { add_error_to_errorstack(device, LIBMTP_ERROR_CANCELLED, "LIBMTP_Get_File_From_File_Descriptor(): Cancelled transfer."); return -1; } if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_File_To_File_Descriptor(): Could not get file from device."); return -1; } return 0; } /** * This gets a file off the device and calls put_func * with chunks of data * * @param device a pointer to the device to get the file from. * @param id the file ID of the file to retrieve. * @param put_func the function to call when we have data. * @param priv the user-defined pointer that is passed to * put_func. * @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. */ int LIBMTP_Get_File_To_Handler(LIBMTP_mtpdevice_t *device, uint32_t const id, MTPDataPutFunc put_func, void * priv, LIBMTP_progressfunc_t const callback, void const * const data) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; LIBMTP_file_t *mtpfile = LIBMTP_Get_Filemetadata(device, id); if (mtpfile == NULL) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Get_File_To_File_Descriptor(): Could not get object info."); return -1; } if (mtpfile->filetype == LIBMTP_FILETYPE_FOLDER) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Get_File_To_File_Descriptor(): Bad object format."); LIBMTP_destroy_file_t (mtpfile); return -1; } // Callbacks ptp_usb->callback_active = 1; ptp_usb->current_transfer_total = mtpfile->filesize + PTP_USB_BULK_HDR_LEN+sizeof(uint32_t); // Request length, one parameter ptp_usb->current_transfer_complete = 0; ptp_usb->current_transfer_callback = callback; ptp_usb->current_transfer_callback_data = data; // Don't need mtpfile anymore LIBMTP_destroy_file_t(mtpfile); MTPDataHandler mtp_handler; mtp_handler.getfunc = NULL; mtp_handler.putfunc = put_func; mtp_handler.priv = priv; PTPDataHandler handler; handler.getfunc = NULL; handler.putfunc = put_func_wrapper; handler.priv = &mtp_handler; ret = ptp_getobject_to_handler(params, id, &handler); ptp_usb->callback_active = 0; ptp_usb->current_transfer_callback = NULL; ptp_usb->current_transfer_callback_data = NULL; if (ret == PTP_ERROR_CANCEL) { add_error_to_errorstack(device, LIBMTP_ERROR_CANCELLED, "LIBMTP_Get_File_From_File_Descriptor(): Cancelled transfer."); return -1; } if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_File_To_File_Descriptor(): Could not get file from device."); return -1; } return 0; } /** * This gets a track off the device to a file identified * by a filename. This is actually just a wrapper for the * \c LIBMTP_Get_Track_To_File() function. * @param device a pointer to the device to get the track from. * @param id the track ID of the track to retrieve. * @param path a filename to use for the retrieved track. * @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. * @see LIBMTP_Get_Track_To_File_Descriptor() */ int LIBMTP_Get_Track_To_File(LIBMTP_mtpdevice_t *device, uint32_t const id, char const * const path, LIBMTP_progressfunc_t const callback, void const * const data) { // This is just a wrapper return LIBMTP_Get_File_To_File(device, id, path, callback, data); } /** * This gets a track off the device to a file identified * by a file descriptor. This is actually just a wrapper for * the \c LIBMTP_Get_File_To_File_Descriptor() function. * @param device a pointer to the device to get the track from. * @param id the track ID of the track to retrieve. * @param fd a file descriptor to write the track to. * @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. * @see LIBMTP_Get_Track_To_File() */ int LIBMTP_Get_Track_To_File_Descriptor(LIBMTP_mtpdevice_t *device, uint32_t const id, int const fd, LIBMTP_progressfunc_t const callback, void const * const data) { // This is just a wrapper return LIBMTP_Get_File_To_File_Descriptor(device, id, fd, callback, data); } /** * This gets a track off the device to a handler function. * This is actually just a wrapper for * the \c LIBMTP_Get_File_To_Handler() function. * @param device a pointer to the device to get the track from. * @param id the track ID of the track to retrieve. * @param put_func the function to call when we have data. * @param priv the user-defined pointer that is passed to * put_func. * @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. */ int LIBMTP_Get_Track_To_Handler(LIBMTP_mtpdevice_t *device, uint32_t const id, MTPDataPutFunc put_func, void * priv, LIBMTP_progressfunc_t const callback, void const * const data) { // This is just a wrapper return LIBMTP_Get_File_To_Handler(device, id, put_func, priv, callback, data); } /** * This function sends a track from a local file to an * MTP device. A filename and a set of metadata must be * given as input. * @param device a pointer to the device to send the track to. * @param path the filename of a local file which will be sent. * @param metadata a track metadata set to be written along with the file. * After this call the field metadata->item_id * will contain the new track ID. Other fields such * as the metadata->filename, metadata->parent_id * or metadata->storage_id may also change during this * operation due to device restrictions, so do not rely on the * contents of this struct to be preserved in any way. *
    *
  • metadata->parent_id should be set to the parent * (e.g. folder) to store this track in. Since some * devices are a bit picky about where files * are placed, a default folder will be chosen if libmtp * has detected one for the current filetype and this * parameter is set to 0. If this is 0 and no default folder * can be found, the file will be stored in the root folder. *
  • metadata->storage_id should be set to the * desired storage (e.g. memory card or whatever your device * presents) to store this track in. Setting this to 0 will store * the track on the primary storage. *
* @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. * @see LIBMTP_Send_Track_From_File_Descriptor() * @see LIBMTP_Send_File_From_File() * @see LIBMTP_Delete_Object() */ int LIBMTP_Send_Track_From_File(LIBMTP_mtpdevice_t *device, char const * const path, LIBMTP_track_t * const metadata, LIBMTP_progressfunc_t const callback, void const * const data) { int fd; int ret; // Sanity check if (path == NULL) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_Track_From_File(): Bad arguments, path was NULL."); return -1; } // Open file #ifdef __WIN32__ #ifdef USE_WINDOWS_IO_H if ( (fd = _open(path, O_RDONLY|O_BINARY)) == -1 ) { #else if ( (fd = open(path, O_RDONLY|O_BINARY)) == -1 ) { #endif #else if ( (fd = open(path, O_RDONLY)) == -1) { #endif LIBMTP_ERROR("LIBMTP_Send_Track_From_File(): Could not open source file \"%s\"\n", path); return -1; } ret = LIBMTP_Send_Track_From_File_Descriptor(device, fd, metadata, callback, data); // Close file. #ifdef USE_WINDOWS_IO_H _close(fd); #else close(fd); #endif return ret; } /** * This helper function checks if a filename already exists on the device * @param params the PTP params to check against * @param filename a string representing the filename * @return 0 if the filename doesn't exist, -1 if it does */ static int check_filename_exists(PTPParams* params, char const * const filename) { unsigned int i; for (i = 0; i < params->nrofobjects; i++) { char *fname = params->objects[i].oi.Filename; if ((fname != NULL) && (strcmp(filename, fname) == 0)) { return -1; } } return 0; } /** * This helper function returns a unique filename, with a random string before the extension * @param params the PTP params to check against * @param filename string representing the original filename * @return a string representing the unique filename */ static char *generate_unique_filename(PTPParams* params, char const * const filename) { int suffix; char * extension_position; if (check_filename_exists(params, filename)) { extension_position = strrchr(filename,'.'); char basename[extension_position - filename + 1]; strncpy(basename, filename, extension_position - filename); basename[extension_position - filename] = '\0'; suffix = 1; char newname[ strlen(basename) + 6 + strlen(extension_position)]; sprintf(newname, "%s_%d%s", basename, suffix, extension_position); while ((check_filename_exists(params, newname)) && (suffix < 1000000)) { suffix++; sprintf(newname, "%s_%d%s", basename, suffix, extension_position); } return strdup(newname); } else { return strdup(filename); } } /** * This function sends a track from a file descriptor to an * MTP device. A filename and a set of metadata must be * given as input. * @param device a pointer to the device to send the track to. * @param fd the filedescriptor for a local file which will be sent. * @param metadata a track metadata set to be written along with the file. * After this call the field metadata->item_id * will contain the new track ID. Other fields such * as the metadata->filename, metadata->parent_id * or metadata->storage_id may also change during this * operation due to device restrictions, so do not rely on the * contents of this struct to be preserved in any way. *
    *
  • metadata->parent_id should be set to the parent * (e.g. folder) to store this track in. Since some * devices are a bit picky about where files * are placed, a default folder will be chosen if libmtp * has detected one for the current filetype and this * parameter is set to 0. If this is 0 and no default folder * can be found, the file will be stored in the root folder. *
  • metadata->storage_id should be set to the * desired storage (e.g. memory card or whatever your device * presents) to store this track in. Setting this to 0 will store * the track on the primary storage. *
* @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. * @see LIBMTP_Send_Track_From_File() * @see LIBMTP_Delete_Object() */ int LIBMTP_Send_Track_From_File_Descriptor(LIBMTP_mtpdevice_t *device, int const fd, LIBMTP_track_t * const metadata, LIBMTP_progressfunc_t const callback, void const * const data) { int subcall_ret; LIBMTP_file_t filedata; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; PTPParams *params = (PTPParams *) device->params; // Sanity check, is this really a track? if (!LIBMTP_FILETYPE_IS_TRACK(metadata->filetype)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_Track_From_File_Descriptor(): " "I don't think this is actually a track, strange filetype..."); } // Wrap around the file transfer function filedata.item_id = metadata->item_id; filedata.parent_id = metadata->parent_id; filedata.storage_id = metadata->storage_id; if FLAG_UNIQUE_FILENAMES(ptp_usb) { filedata.filename = generate_unique_filename(params, metadata->filename); } else { filedata.filename = metadata->filename; } filedata.filesize = metadata->filesize; filedata.filetype = metadata->filetype; filedata.next = NULL; subcall_ret = LIBMTP_Send_File_From_File_Descriptor(device, fd, &filedata, callback, data); if (subcall_ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_Track_From_File_Descriptor(): " "subcall to LIBMTP_Send_File_From_File_Descriptor failed."); // We used to delete the file here, but don't... It might be OK after all. // (void) LIBMTP_Delete_Object(device, metadata->item_id); return -1; } // Pick up new item (and parent, storage) ID metadata->item_id = filedata.item_id; metadata->parent_id = filedata.parent_id; metadata->storage_id = filedata.storage_id; // Set track metadata for the new fine track subcall_ret = LIBMTP_Update_Track_Metadata(device, metadata); if (subcall_ret != 0) { // Subcall will add error to errorstack // We used to delete the file here, but don't... It might be OK after all. // (void) LIBMTP_Delete_Object(device, metadata->item_id); return -1; } // note we don't need to update the cache here because LIBMTP_Send_File_From_File_Descriptor // has added the object handle and LIBMTP_Update_Track_Metadata has added the metadata. return 0; } /** * This function sends a track from a handler function to an * MTP device. A filename and a set of metadata must be * given as input. * @param device a pointer to the device to send the track to. * @param get_func the function to call when we have data. * @param priv the user-defined pointer that is passed to * get_func. * @param metadata a track metadata set to be written along with the file. * After this call the field metadata->item_id * will contain the new track ID. Other fields such * as the metadata->filename, metadata->parent_id * or metadata->storage_id may also change during this * operation due to device restrictions, so do not rely on the * contents of this struct to be preserved in any way. *
    *
  • metadata->parent_id should be set to the parent * (e.g. folder) to store this track in. Since some * devices are a bit picky about where files * are placed, a default folder will be chosen if libmtp * has detected one for the current filetype and this * parameter is set to 0. If this is 0 and no default folder * can be found, the file will be stored in the root folder. *
  • metadata->storage_id should be set to the * desired storage (e.g. memory card or whatever your device * presents) to store this track in. Setting this to 0 will store * the track on the primary storage. *
* @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. * @see LIBMTP_Send_Track_From_File() * @see LIBMTP_Delete_Object() */ int LIBMTP_Send_Track_From_Handler(LIBMTP_mtpdevice_t *device, MTPDataGetFunc get_func, void * priv, LIBMTP_track_t * const metadata, LIBMTP_progressfunc_t const callback, void const * const data) { int subcall_ret; LIBMTP_file_t filedata; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; PTPParams *params = (PTPParams *) device->params; // Sanity check, is this really a track? if (!LIBMTP_FILETYPE_IS_TRACK(metadata->filetype)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_Track_From_Handler(): " "I don't think this is actually a track, strange filetype..."); } // Wrap around the file transfer function filedata.item_id = metadata->item_id; filedata.parent_id = metadata->parent_id; filedata.storage_id = metadata->storage_id; if FLAG_UNIQUE_FILENAMES(ptp_usb) { filedata.filename = generate_unique_filename(params, metadata->filename); } else { filedata.filename = metadata->filename; } filedata.filesize = metadata->filesize; filedata.filetype = metadata->filetype; filedata.next = NULL; subcall_ret = LIBMTP_Send_File_From_Handler(device, get_func, priv, &filedata, callback, data); if (subcall_ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_Track_From_Handler(): " "subcall to LIBMTP_Send_File_From_Handler failed."); // We used to delete the file here, but don't... It might be OK after all. // (void) LIBMTP_Delete_Object(device, metadata->item_id); return -1; } // Pick up new item (and parent, storage) ID metadata->item_id = filedata.item_id; metadata->parent_id = filedata.parent_id; metadata->storage_id = filedata.storage_id; // Set track metadata for the new fine track subcall_ret = LIBMTP_Update_Track_Metadata(device, metadata); if (subcall_ret != 0) { // Subcall will add error to errorstack // We used to delete the file here, but don't... It might be OK after all. // (void) LIBMTP_Delete_Object(device, metadata->item_id); return -1; } // note we don't need to update the cache here because LIBMTP_Send_File_From_File_Descriptor // has added the object handle and LIBMTP_Update_Track_Metadata has added the metadata. return 0; } /** * This function sends a local file to an MTP device. * A filename and a set of metadata must be * given as input. * @param device a pointer to the device to send the track to. * @param path the filename of a local file which will be sent. * @param filedata a file metadata set to be written along with the file. * After this call the field filedata->item_id * will contain the new file ID. Other fields such * as the filedata->filename, filedata->parent_id * or filedata->storage_id may also change during this * operation due to device restrictions, so do not rely on the * contents of this struct to be preserved in any way. *
    *
  • filedata->parent_id should be set to the parent * (e.g. folder) to store this file in. If this is 0, * the file will be stored in the root folder. *
  • filedata->storage_id should be set to the * desired storage (e.g. memory card or whatever your device * presents) to store this file in. Setting this to 0 will store * the file on the primary storage. *
* @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. * @see LIBMTP_Send_File_From_File_Descriptor() * @see LIBMTP_Delete_Object() */ int LIBMTP_Send_File_From_File(LIBMTP_mtpdevice_t *device, char const * const path, LIBMTP_file_t * const filedata, LIBMTP_progressfunc_t const callback, void const * const data) { int fd; int ret; // Sanity check if (path == NULL) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_File_From_File(): Bad arguments, path was NULL."); return -1; } // Open file #ifdef __WIN32__ #ifdef USE_WINDOWS_IO_H if ( (fd = _open(path, O_RDONLY|O_BINARY)) == -1 ) { #else if ( (fd = open(path, O_RDONLY|O_BINARY)) == -1 ) { #endif #else if ( (fd = open(path, O_RDONLY)) == -1) { #endif add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_File_From_File(): Could not open source file."); return -1; } ret = LIBMTP_Send_File_From_File_Descriptor(device, fd, filedata, callback, data); // Close file. #ifdef USE_WINDOWS_IO_H _close(fd); #else close(fd); #endif return ret; } /** * This function sends a generic file from a file descriptor to an * MTP device. A filename and a set of metadata must be * given as input. * * This can potentially be used for sending in a stream of unknown * length. Send music files with * LIBMTP_Send_Track_From_File_Descriptor() * * @param device a pointer to the device to send the file to. * @param fd the filedescriptor for a local file which will be sent. * @param filedata a file metadata set to be written along with the file. * After this call the field filedata->item_id * will contain the new file ID. Other fields such * as the filedata->filename, filedata->parent_id * or filedata->storage_id may also change during this * operation due to device restrictions, so do not rely on the * contents of this struct to be preserved in any way. *
    *
  • filedata->parent_id should be set to the parent * (e.g. folder) to store this file in. If this is 0, * the file will be stored in the root folder. *
  • filedata->storage_id should be set to the * desired storage (e.g. memory card or whatever your device * presents) to store this file in. Setting this to 0 will store * the file on the primary storage. *
* @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. * @see LIBMTP_Send_File_From_File() * @see LIBMTP_Send_Track_From_File_Descriptor() * @see LIBMTP_Delete_Object() */ int LIBMTP_Send_File_From_File_Descriptor(LIBMTP_mtpdevice_t *device, int const fd, LIBMTP_file_t * const filedata, LIBMTP_progressfunc_t const callback, void const * const data) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; LIBMTP_file_t *newfilemeta; int oldtimeout; int timeout; if (send_file_object_info(device, filedata)) { // no need to output an error since send_file_object_info will already have done so return -1; } // Callbacks ptp_usb->callback_active = 1; // The callback will deactivate itself after this amount of data has been sent // One BULK header for the request, one for the data phase. No parameters to the request. ptp_usb->current_transfer_total = filedata->filesize+PTP_USB_BULK_HDR_LEN*2; ptp_usb->current_transfer_complete = 0; ptp_usb->current_transfer_callback = callback; ptp_usb->current_transfer_callback_data = data; /* * We might need to increase the timeout here, files can be pretty * large. Take the default timeout and add the calculated time for * this transfer */ get_usb_device_timeout(ptp_usb, &oldtimeout); timeout = oldtimeout + (ptp_usb->current_transfer_total / guess_usb_speed(ptp_usb)) * 1000; set_usb_device_timeout(ptp_usb, timeout); ret = ptp_sendobject_fromfd(params, fd, filedata->filesize); ptp_usb->callback_active = 0; ptp_usb->current_transfer_callback = NULL; ptp_usb->current_transfer_callback_data = NULL; set_usb_device_timeout(ptp_usb, oldtimeout); if (ret == PTP_ERROR_CANCEL) { add_error_to_errorstack(device, LIBMTP_ERROR_CANCELLED, "LIBMTP_Send_File_From_File_Descriptor(): Cancelled transfer."); return -1; } if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Send_File_From_File_Descriptor(): " "Could not send object."); return -1; } add_object_to_cache(device, filedata->item_id); /* * Get the device-assigned parent_id from the cache. * The operation that adds it to the cache will * look it up from the device, so we get the new * parent_id from the cache. */ newfilemeta = LIBMTP_Get_Filemetadata(device, filedata->item_id); if (newfilemeta != NULL) { filedata->parent_id = newfilemeta->parent_id; filedata->storage_id = newfilemeta->storage_id; LIBMTP_destroy_file_t(newfilemeta); } else { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_File_From_File_Descriptor(): " "Could not retrieve updated metadata."); return -1; } return 0; } /** * This function sends a generic file from a handler function to an * MTP device. A filename and a set of metadata must be * given as input. * * This can potentially be used for sending in a stream of unknown * length. Send music files with * LIBMTP_Send_Track_From_Handler() * * @param device a pointer to the device to send the file to. * @param get_func the function to call to get data to write * @param priv a user-defined pointer that is passed along to * get_func. If not used, this is set to NULL. * @param filedata a file metadata set to be written along with the file. * After this call the field filedata->item_id * will contain the new file ID. Other fields such * as the filedata->filename, filedata->parent_id * or filedata->storage_id may also change during this * operation due to device restrictions, so do not rely on the * contents of this struct to be preserved in any way. *
    *
  • filedata->parent_id should be set to the parent * (e.g. folder) to store this file in. If this is 0, * the file will be stored in the root folder. *
  • filedata->storage_id should be set to the * desired storage (e.g. memory card or whatever your device * presents) to store this file in. Setting this to 0 will store * the file on the primary storage. *
* @param callback a progress indicator function or NULL to ignore. * @param data a user-defined pointer that is passed along to * the progress function in order to * pass along some user defined data to the progress * updates. If not used, set this to NULL. * @return 0 if the transfer was successful, any other value means * failure. * @see LIBMTP_Send_File_From_File() * @see LIBMTP_Send_Track_From_File_Descriptor() * @see LIBMTP_Delete_Object() */ int LIBMTP_Send_File_From_Handler(LIBMTP_mtpdevice_t *device, MTPDataGetFunc get_func, void * priv, LIBMTP_file_t * const filedata, LIBMTP_progressfunc_t const callback, void const * const data) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; LIBMTP_file_t *newfilemeta; if (send_file_object_info(device, filedata)) { // no need to output an error since send_file_object_info will already have done so return -1; } // Callbacks ptp_usb->callback_active = 1; // The callback will deactivate itself after this amount of data has been sent // One BULK header for the request, one for the data phase. No parameters to the request. ptp_usb->current_transfer_total = filedata->filesize+PTP_USB_BULK_HDR_LEN*2; ptp_usb->current_transfer_complete = 0; ptp_usb->current_transfer_callback = callback; ptp_usb->current_transfer_callback_data = data; MTPDataHandler mtp_handler; mtp_handler.getfunc = get_func; mtp_handler.putfunc = NULL; mtp_handler.priv = priv; PTPDataHandler handler; handler.getfunc = get_func_wrapper; handler.putfunc = NULL; handler.priv = &mtp_handler; ret = ptp_sendobject_from_handler(params, &handler, filedata->filesize); ptp_usb->callback_active = 0; ptp_usb->current_transfer_callback = NULL; ptp_usb->current_transfer_callback_data = NULL; if (ret == PTP_ERROR_CANCEL) { add_error_to_errorstack(device, LIBMTP_ERROR_CANCELLED, "LIBMTP_Send_File_From_Handler(): Cancelled transfer."); return -1; } if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Send_File_From_Handler(): " "Could not send object."); return -1; } add_object_to_cache(device, filedata->item_id); /* * Get the device-assined parent_id from the cache. * The operation that adds it to the cache will * look it up from the device, so we get the new * parent_id from the cache. */ newfilemeta = LIBMTP_Get_Filemetadata(device, filedata->item_id); if (newfilemeta != NULL) { filedata->parent_id = newfilemeta->parent_id; filedata->storage_id = newfilemeta->storage_id; LIBMTP_destroy_file_t(newfilemeta); } else { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_File_From_Handler(): " "Could not retrieve updated metadata."); return -1; } return 0; } /** * This function sends the file object info, ready for sendobject * @param device a pointer to the device to send the file to. * @param filedata a file metadata set to be written along with the file. * @return 0 if the transfer was successful, any other value means * failure. */ static int send_file_object_info(LIBMTP_mtpdevice_t *device, LIBMTP_file_t *filedata) { PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; uint32_t store; int use_primary_storage = 1; uint16_t of = map_libmtp_type_to_ptp_type(filedata->filetype); LIBMTP_devicestorage_t *storage; uint32_t localph = filedata->parent_id; uint16_t ret; unsigned int i; #if 0 // Sanity check: no zerolength files on some devices? // If the zerolength files cause problems on some devices, // then add a bug flag for this. if (filedata->filesize == 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "send_file_object_info(): " "File of zero size."); return -1; } #endif if (filedata->storage_id != 0) { store = filedata->storage_id; } else { store = get_suggested_storage_id(device, filedata->filesize, localph); } // Detect if something non-primary is in use. storage = device->storage; if (storage != NULL && store != storage->id) { use_primary_storage = 0; } /* * If no destination folder was given, look up a default * folder if possible. Perhaps there is some way of retrieveing * the default folder for different forms of content, what * do I know, we use a fixed list in lack of any better method. * Some devices obviously need to have their files in certain * folders in order to find/display them at all (hello Creative), * so we have to have a method for this. We only do this if the * primary storage is in use. */ if (localph == 0 && use_primary_storage) { if (LIBMTP_FILETYPE_IS_AUDIO(filedata->filetype)) { localph = device->default_music_folder; } else if (LIBMTP_FILETYPE_IS_VIDEO(filedata->filetype)) { localph = device->default_video_folder; } else if (of == PTP_OFC_EXIF_JPEG || of == PTP_OFC_JP2 || of == PTP_OFC_JPX || of == PTP_OFC_JFIF || of == PTP_OFC_TIFF || of == PTP_OFC_TIFF_IT || of == PTP_OFC_BMP || of == PTP_OFC_GIF || of == PTP_OFC_PICT || of == PTP_OFC_PNG || of == PTP_OFC_MTP_WindowsImageFormat) { localph = device->default_picture_folder; } else if (of == PTP_OFC_MTP_vCalendar1 || of == PTP_OFC_MTP_vCalendar2 || of == PTP_OFC_MTP_UndefinedContact || of == PTP_OFC_MTP_vCard2 || of == PTP_OFC_MTP_vCard3 || of == PTP_OFC_MTP_UndefinedCalendarItem) { localph = device->default_organizer_folder; } else if (of == PTP_OFC_Text) { localph = device->default_text_folder; } } // Here we wire the type to unknown on bugged, but // Ogg or FLAC-supportive devices. if (FLAG_OGG_IS_UNKNOWN(ptp_usb) && of == PTP_OFC_MTP_OGG) { of = PTP_OFC_Undefined; } if (FLAG_FLAC_IS_UNKNOWN(ptp_usb) && of == PTP_OFC_MTP_FLAC) { of = PTP_OFC_Undefined; } if (ptp_operation_issupported(params, PTP_OC_MTP_SendObjectPropList) && !FLAG_BROKEN_SEND_OBJECT_PROPLIST(ptp_usb)) { /* * MTP enhanched does it this way (from a sniff): * -> PTP_OC_MTP_SendObjectPropList (0x9808): * 20 00 00 00 01 00 08 98 1B 00 00 00 01 00 01 00 * FF FF FF FF 00 30 00 00 00 00 00 00 12 5E 00 00 * Length: 0x00000020 * Type: 0x0001 PTP_USB_CONTAINER_COMMAND * Code: 0x9808 * Transaction ID: 0x0000001B * Param1: 0x00010001 <- store * Param2: 0xffffffff <- parent handle (-1 ?) * Param3: 0x00003000 <- file type PTP_OFC_Undefined - we don't know about PDF files * Param4: 0x00000000 <- file length MSB (-0x0c header len) * Param5: 0x00005e12 <- file length LSB (-0x0c header len) * * -> PTP_OC_MTP_SendObjectPropList (0x9808): * 46 00 00 00 02 00 08 98 1B 00 00 00 03 00 00 00 * 00 00 00 00 07 DC FF FF 0D 4B 00 53 00 30 00 36 - dc07 = file name * 00 30 00 33 00 30 00 36 00 2E 00 70 00 64 00 66 * 00 00 00 00 00 00 00 03 DC 04 00 00 00 00 00 00 - dc03 = protection status * 00 4F DC 02 00 01 - dc4f = non consumable * Length: 0x00000046 * Type: 0x0002 PTP_USB_CONTAINER_DATA * Code: 0x9808 * Transaction ID: 0x0000001B * Metadata.... * 0x00000003 <- Number of metadata items * 0x00000000 <- Object handle, set to 0x00000000 since it is unknown! * 0xdc07 <- metadata type: file name * 0xffff <- metadata type: string * 0x0d <- number of (uint16_t) characters * 4b 53 30 36 30 33 30 36 2e 50 64 66 00 "KS060306.pdf", null terminated * 0x00000000 <- Object handle, set to 0x00000000 since it is unknown! * 0xdc03 <- metadata type: protection status * 0x0004 <- metadata type: uint16_t * 0x0000 <- not protected * 0x00000000 <- Object handle, set to 0x00000000 since it is unknown! * 0xdc4f <- non consumable * 0x0002 <- metadata type: uint8_t * 0x01 <- non-consumable (this device cannot display PDF) * * <- Read 0x18 bytes back * 18 00 00 00 03 00 01 20 1B 00 00 00 01 00 01 00 * 00 00 00 00 01 40 00 00 * Length: 0x000000018 * Type: 0x0003 PTP_USB_CONTAINER_RESPONSE * Code: 0x2001 PTP_OK * Transaction ID: 0x0000001B * Param1: 0x00010001 <- store * Param2: 0x00000000 <- parent handle * Param3: 0x00004001 <- new file/object ID * * -> PTP_OC_SendObject (0x100d) * 0C 00 00 00 01 00 0D 10 1C 00 00 00 * -> ... all the bytes ... * <- Read 0x0c bytes back * 0C 00 00 00 03 00 01 20 1C 00 00 00 * ... Then update metadata one-by one, actually (instead of sending it first!) ... */ MTPProperties *props = NULL; int nrofprops = 0; MTPProperties *prop = NULL; uint16_t *properties = NULL; uint32_t propcnt = 0; // default parent handle if (localph == 0) localph = 0xFFFFFFFFU; // Set to -1 // Must be 0x00000000U for new objects filedata->item_id = 0x00000000U; ret = ptp_mtp_getobjectpropssupported(params, of, &propcnt, &properties); for (i=0;iObjectHandle = filedata->item_id; prop->property = PTP_OPC_ObjectFileName; prop->datatype = PTP_DTC_STR; if (filedata->filename != NULL) { prop->propval.str = strdup(filedata->filename); if (FLAG_ONLY_7BIT_FILENAMES(ptp_usb)) { strip_7bit_from_utf8(prop->propval.str); } } break; case PTP_OPC_ProtectionStatus: prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = filedata->item_id; prop->property = PTP_OPC_ProtectionStatus; prop->datatype = PTP_DTC_UINT16; prop->propval.u16 = 0x0000U; /* Not protected */ break; case PTP_OPC_NonConsumable: prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = filedata->item_id; prop->property = PTP_OPC_NonConsumable; prop->datatype = PTP_DTC_UINT8; prop->propval.u8 = 0x00; /* It is supported, then it is consumable */ break; case PTP_OPC_Name: prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = filedata->item_id; prop->property = PTP_OPC_Name; prop->datatype = PTP_DTC_STR; if (filedata->filename != NULL) prop->propval.str = strdup(filedata->filename); break; case PTP_OPC_DateModified: // Tag with current time if that is supported if (!FLAG_CANNOT_HANDLE_DATEMODIFIED(ptp_usb)) { prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = filedata->item_id; prop->property = PTP_OPC_DateModified; prop->datatype = PTP_DTC_STR; prop->propval.str = get_iso8601_stamp(); filedata->modificationdate = time(NULL); } break; } } ptp_free_objectpropdesc(&opd); } free(properties); ret = ptp_mtp_sendobjectproplist(params, &store, &localph, &filedata->item_id, of, filedata->filesize, props, nrofprops); /* Free property list */ ptp_destroy_object_prop_list(props, nrofprops); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "send_file_object_info():" "Could not send object property list."); if (ret == PTP_RC_AccessDenied) { add_ptp_error_to_errorstack(device, ret, "ACCESS DENIED."); } return -1; } } else if (ptp_operation_issupported(params,PTP_OC_SendObjectInfo)) { PTPObjectInfo new_file; memset(&new_file, 0, sizeof(PTPObjectInfo)); new_file.Filename = filedata->filename; if (FLAG_ONLY_7BIT_FILENAMES(ptp_usb)) { strip_7bit_from_utf8(new_file.Filename); } if (filedata->filesize > 0xFFFFFFFFL) { // This is a kludge in the MTP standard for large files. new_file.ObjectCompressedSize = (uint32_t) 0xFFFFFFFF; } else { new_file.ObjectCompressedSize = (uint32_t) filedata->filesize; } new_file.ObjectFormat = of; new_file.StorageID = store; new_file.ParentObject = localph; new_file.ModificationDate = time(NULL); // Create the object ret = ptp_sendobjectinfo(params, &store, &localph, &filedata->item_id, &new_file); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "send_file_object_info(): " "Could not send object info."); if (ret == PTP_RC_AccessDenied) { add_ptp_error_to_errorstack(device, ret, "ACCESS DENIED."); } return -1; } // NOTE: the char* pointers inside new_file are not copies so don't // try to destroy this objectinfo! } // Now there IS an object with this parent handle. filedata->parent_id = localph; return 0; } /** * This function updates the MTP track object metadata on a * single file identified by an object ID. * @param device a pointer to the device to update the track * metadata on. * @param metadata a track metadata set to be written to the file. * notice that the track_id field of the * metadata structure must be correct so that the * function can update the right file. If some properties * of this metadata are set to NULL (strings) or 0 * (numerical values) they will be discarded and the * track will not be tagged with these blank values. * @return 0 on success, any other value means failure. If some * or all of the properties fail to update we will still * return success. On some devices (notably iRiver T30) * properties that exist cannot be updated. */ int LIBMTP_Update_Track_Metadata(LIBMTP_mtpdevice_t *device, LIBMTP_track_t const * const metadata) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; uint32_t i; uint16_t *properties = NULL; uint32_t propcnt = 0; // First see which properties can be set on this file format and apply accordingly // i.e only try to update this metadata for object tags that exist on the current player. ret = ptp_mtp_getobjectpropssupported(params, map_libmtp_type_to_ptp_type(metadata->filetype), &propcnt, &properties); if (ret != PTP_RC_OK) { // Just bail out for now, nothing is ever set. add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not retrieve supported object properties."); return -1; } if (ptp_operation_issupported(params, PTP_OC_MTP_SetObjPropList) && !FLAG_BROKEN_SET_OBJECT_PROPLIST(ptp_usb)) { MTPProperties *props = NULL; MTPProperties *prop = NULL; int nrofprops = 0; for (i=0;ifiletype), &opd); if (ret != PTP_RC_OK) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not get property description."); } else if (opd.GetSet) { switch (properties[i]) { case PTP_OPC_Name: if (metadata->title == NULL) break; prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_Name; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(metadata->title); break; case PTP_OPC_AlbumName: if (metadata->album == NULL) break; prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_AlbumName; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(metadata->album); break; case PTP_OPC_Artist: if (metadata->artist == NULL) break; prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_Artist; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(metadata->artist); break; case PTP_OPC_Composer: if (metadata->composer == NULL) break; prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_Composer; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(metadata->composer); break; case PTP_OPC_Genre: if (metadata->genre == NULL) break; prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_Genre; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(metadata->genre); break; case PTP_OPC_Duration: prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_Duration; prop->datatype = PTP_DTC_UINT32; prop->propval.u32 = adjust_u32(metadata->duration, &opd); break; case PTP_OPC_Track: prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_Track; prop->datatype = PTP_DTC_UINT16; prop->propval.u16 = adjust_u16(metadata->tracknumber, &opd); break; case PTP_OPC_OriginalReleaseDate: if (metadata->date == NULL) break; prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_OriginalReleaseDate; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(metadata->date); break; case PTP_OPC_SampleRate: prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_SampleRate; prop->datatype = PTP_DTC_UINT32; prop->propval.u32 = adjust_u32(metadata->samplerate, &opd); break; case PTP_OPC_NumberOfChannels: prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_NumberOfChannels; prop->datatype = PTP_DTC_UINT16; prop->propval.u16 = adjust_u16(metadata->nochannels, &opd); break; case PTP_OPC_AudioWAVECodec: prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_AudioWAVECodec; prop->datatype = PTP_DTC_UINT32; prop->propval.u32 = adjust_u32(metadata->wavecodec, &opd); break; case PTP_OPC_AudioBitRate: prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_AudioBitRate; prop->datatype = PTP_DTC_UINT32; prop->propval.u32 = adjust_u32(metadata->bitrate, &opd); break; case PTP_OPC_BitRateType: prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_BitRateType; prop->datatype = PTP_DTC_UINT16; prop->propval.u16 = adjust_u16(metadata->bitratetype, &opd); break; case PTP_OPC_Rating: // TODO: shall this be set for rating 0? if (metadata->rating == 0) break; prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_Rating; prop->datatype = PTP_DTC_UINT16; prop->propval.u16 = adjust_u16(metadata->rating, &opd); break; case PTP_OPC_UseCount: prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_UseCount; prop->datatype = PTP_DTC_UINT32; prop->propval.u32 = adjust_u32(metadata->usecount, &opd); break; case PTP_OPC_DateModified: if (!FLAG_CANNOT_HANDLE_DATEMODIFIED(ptp_usb)) { // Tag with current time if that is supported prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = metadata->item_id; prop->property = PTP_OPC_DateModified; prop->datatype = PTP_DTC_STR; prop->propval.str = get_iso8601_stamp(); } break; default: break; } } ptp_free_objectpropdesc(&opd); } // NOTE: File size is not updated, this should not change anyway. // neither will we change the filename. ret = ptp_mtp_setobjectproplist(params, props, nrofprops); ptp_destroy_object_prop_list(props, nrofprops); if (ret != PTP_RC_OK) { // TODO: return error of which property we couldn't set add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set object property list."); free(properties); return -1; } } else if (ptp_operation_issupported(params,PTP_OC_MTP_SetObjectPropValue)) { for (i=0;ifiletype), &opd); if (ret != PTP_RC_OK) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not get property description."); } else if (opd.GetSet) { switch (properties[i]) { case PTP_OPC_Name: // Update title ret = set_object_string(device, metadata->item_id, PTP_OPC_Name, metadata->title); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set track title."); } break; case PTP_OPC_AlbumName: // Update album ret = set_object_string(device, metadata->item_id, PTP_OPC_AlbumName, metadata->album); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set track album name."); } break; case PTP_OPC_Artist: // Update artist ret = set_object_string(device, metadata->item_id, PTP_OPC_Artist, metadata->artist); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set track artist name."); } break; case PTP_OPC_Composer: // Update composer ret = set_object_string(device, metadata->item_id, PTP_OPC_Composer, metadata->composer); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set track composer name."); } break; case PTP_OPC_Genre: // Update genre (but only if valid) if (metadata->genre) { ret = set_object_string(device, metadata->item_id, PTP_OPC_Genre, metadata->genre); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "update_abstract_list(): " "could not set genre."); } } break; case PTP_OPC_Duration: // Update duration if (metadata->duration != 0) { ret = set_object_u32(device, metadata->item_id, PTP_OPC_Duration, adjust_u32(metadata->duration, &opd)); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set track duration."); } } break; case PTP_OPC_Track: // Update track number. if (metadata->tracknumber != 0) { ret = set_object_u16(device, metadata->item_id, PTP_OPC_Track, adjust_u16(metadata->tracknumber, &opd)); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set track tracknumber."); } } break; case PTP_OPC_OriginalReleaseDate: // Update creation datetime // The date can be zero, but some devices do not support setting zero // dates (and it seems that a zero date should never be set anyway) if (metadata->date) { ret = set_object_string(device, metadata->item_id, PTP_OPC_OriginalReleaseDate, metadata->date); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set track release date."); } } break; // These are, well not so important. case PTP_OPC_SampleRate: // Update sample rate if (metadata->samplerate != 0) { ret = set_object_u32(device, metadata->item_id, PTP_OPC_SampleRate, adjust_u32(metadata->samplerate, &opd)); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set samplerate."); } } break; case PTP_OPC_NumberOfChannels: // Update number of channels if (metadata->nochannels != 0) { ret = set_object_u16(device, metadata->item_id, PTP_OPC_NumberOfChannels, adjust_u16(metadata->nochannels, &opd)); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set number of channels."); } } break; case PTP_OPC_AudioWAVECodec: // Update WAVE codec if (metadata->wavecodec != 0) { ret = set_object_u32(device, metadata->item_id, PTP_OPC_AudioWAVECodec, adjust_u32(metadata->wavecodec, &opd)); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set WAVE codec."); } } break; case PTP_OPC_AudioBitRate: // Update bitrate if (metadata->bitrate != 0) { ret = set_object_u32(device, metadata->item_id, PTP_OPC_AudioBitRate, adjust_u32(metadata->bitrate, &opd)); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set bitrate."); } } break; case PTP_OPC_BitRateType: // Update bitrate type if (metadata->bitratetype != 0) { ret = set_object_u16(device, metadata->item_id, PTP_OPC_BitRateType, adjust_u16(metadata->bitratetype, &opd)); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set bitratetype."); } } break; case PTP_OPC_Rating: // Update user rating // TODO: shall this be set for rating 0? if (metadata->rating != 0) { ret = set_object_u16(device, metadata->item_id, PTP_OPC_Rating, adjust_u16(metadata->rating, &opd)); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set user rating."); } } break; case PTP_OPC_UseCount: // Update use count, set even to zero if desired. ret = set_object_u32(device, metadata->item_id, PTP_OPC_UseCount, adjust_u32(metadata->usecount, &opd)); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set use count."); } break; case PTP_OPC_DateModified: if (!FLAG_CANNOT_HANDLE_DATEMODIFIED(ptp_usb)) { // Update modification time if supported char *tmpstamp = get_iso8601_stamp(); ret = set_object_string(device, metadata->item_id, PTP_OPC_DateModified, tmpstamp); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "could not set modification date."); } free(tmpstamp); } break; // NOTE: File size is not updated, this should not change anyway. // neither will we change the filename. default: break; } } ptp_free_objectpropdesc(&opd); } } else { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Update_Track_Metadata(): " "Your device doesn't seem to support any known way of setting metadata."); free(properties); return -1; } // update cached object properties if metadata cache exists update_metadata_cache(device, metadata->item_id); free(properties); return 0; } /** * This function deletes a single file, track, playlist, folder or * any other object off the MTP device, identified by the object ID. * * If you delete a folder, there is no guarantee that the device will * really delete all the files that were in that folder, rather it is * expected that they will not be deleted, and will turn up in object * listings with parent set to a non-existant object ID. The safe way * to do this is to recursively delete all files (and folders) contained * in the folder, then the folder itself. * * @param device a pointer to the device to delete the object from. * @param object_id the object to delete. * @return 0 on success, any other value means failure. */ int LIBMTP_Delete_Object(LIBMTP_mtpdevice_t *device, uint32_t object_id) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; ret = ptp_deleteobject(params, object_id, 0); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Delete_Object(): could not delete object."); return -1; } return 0; } /** * The function moves an object from one location on a device to another * location. * * The semantics of moving a folder are not defined in the spec, but it * appears to do the right thing when tested (but devices that implement * this operation are rare). * * Note that moving an object may take a significant amount of time, * particularly if being moved between storages. MTP does not provide * any kind of progress mechanism, so the operation will simply block * for the duration. * * @param device a pointer to the device where the object exists. * @param object_id the object to move. * @param storage_id the id of the destination storage. * @param parent_id the id of the destination parent object (folder). * If the destination is the root of the storage, pass '0'. * @return 0 on success, any other value means failure. */ int LIBMTP_Move_Object(LIBMTP_mtpdevice_t *device, uint32_t object_id, uint32_t storage_id, uint32_t parent_id) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; ret = ptp_moveobject(params, object_id, storage_id, parent_id); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Move_Object(): could not move object."); return -1; } return 0; } /** * The function copies an object from one location on a device to another * location. * * The semantics of copying a folder are not defined in the spec, but it * appears to do the right thing when tested (but devices that implement * this operation are rare). * * Note that copying an object may take a significant amount of time. * MTP does not provide any kind of progress mechanism, so the operation * will simply block for the duration. * * @param device a pointer to the device where the object exists. * @param object_id the object to copy. * @param storage_id the id of the destination storage. * @param parent_id the id of the destination parent object (folder). * If the destination is the root of the storage, pass '0'. * @return 0 on success, any other value means failure. */ int LIBMTP_Copy_Object(LIBMTP_mtpdevice_t *device, uint32_t object_id, uint32_t storage_id, uint32_t parent_id) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; ret = ptp_copyobject(params, object_id, storage_id, parent_id); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Copy_Object(): could not copy object."); return -1; } return 0; } /** * Internal function to update an object filename property. */ static int set_object_filename(LIBMTP_mtpdevice_t *device, uint32_t object_id, uint16_t ptp_type, const char **newname_ptr) { PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; PTPObjectPropDesc opd; uint16_t ret; char *newname; // See if we can modify the filename on this kind of files. ret = ptp_mtp_getobjectpropdesc(params, PTP_OPC_ObjectFileName, ptp_type, &opd); if (ret != PTP_RC_OK) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "set_object_filename(): " "could not get property description."); return -1; } if (!opd.GetSet) { ptp_free_objectpropdesc(&opd); add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "set_object_filename(): " " property is not settable."); // TODO: we COULD actually upload/download the object here, if we feel // like wasting time for the user. return -1; } newname = strdup(*newname_ptr); if (FLAG_ONLY_7BIT_FILENAMES(ptp_usb)) { strip_7bit_from_utf8(newname); } if (ptp_operation_issupported(params, PTP_OC_MTP_SetObjPropList) && !FLAG_BROKEN_SET_OBJECT_PROPLIST(ptp_usb)) { MTPProperties *props = NULL; MTPProperties *prop = NULL; int nrofprops = 0; prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = object_id; prop->property = PTP_OPC_ObjectFileName; prop->datatype = PTP_DTC_STR; prop->propval.str = newname; ret = ptp_mtp_setobjectproplist(params, props, nrofprops); ptp_destroy_object_prop_list(props, nrofprops); if (ret != PTP_RC_OK) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "set_object_filename(): " " could not set object property list."); ptp_free_objectpropdesc(&opd); return -1; } } else if (ptp_operation_issupported(params, PTP_OC_MTP_SetObjectPropValue)) { ret = set_object_string(device, object_id, PTP_OPC_ObjectFileName, newname); if (ret != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "set_object_filename(): " " could not set object filename."); ptp_free_objectpropdesc(&opd); return -1; } } else { free(newname); add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "set_object_filename(): " " your device doesn't seem to support any known way of setting metadata."); ptp_free_objectpropdesc(&opd); return -1; } ptp_free_objectpropdesc(&opd); // update cached object properties if metadata cache exists update_metadata_cache(device, object_id); return 0; } /** * This function renames a single file. * This simply means that the PTP_OPC_ObjectFileName property * is updated, if this is supported by the device. * * @param device a pointer to the device that contains the file. * @param file the file metadata of the file to rename. * On success, the filename member is updated. Be aware, that * this name can be different than newname depending of device restrictions. * @param newname the new filename for this object. * @return 0 on success, any other value means failure. */ int LIBMTP_Set_File_Name(LIBMTP_mtpdevice_t *device, LIBMTP_file_t *file, const char *newname) { int ret; ret = set_object_filename(device, file->item_id, map_libmtp_type_to_ptp_type(file->filetype), &newname); if (ret != 0) { return ret; } free(file->filename); file->filename = strdup(newname); return ret; } /** * This function renames a single folder. * This simply means that the PTP_OPC_ObjectFileName property * is updated, if this is supported by the device. * * @param device a pointer to the device that contains the file. * @param folder the folder metadata of the folder to rename. * On success, the name member is updated. Be aware, that * this name can be different than newname depending of device restrictions. * @param newname the new name for this object. * @return 0 on success, any other value means failure. */ int LIBMTP_Set_Folder_Name(LIBMTP_mtpdevice_t *device, LIBMTP_folder_t *folder, const char* newname) { int ret; ret = set_object_filename(device, folder->folder_id, PTP_OFC_Association, &newname); if (ret != 0) { return ret; } free(folder->name); folder->name = strdup(newname); return ret; } /** * This function renames a single track. * This simply means that the PTP_OPC_ObjectFileName property * is updated, if this is supported by the device. * * @param device a pointer to the device that contains the file. * @param track the track metadata of the track to rename. * On success, the filename member is updated. Be aware, that * this name can be different than newname depending of device restrictions. * @param newname the new filename for this object. * @return 0 on success, any other value means failure. */ int LIBMTP_Set_Track_Name(LIBMTP_mtpdevice_t *device, LIBMTP_track_t *track, const char* newname) { int ret; ret = set_object_filename(device, track->item_id, map_libmtp_type_to_ptp_type(track->filetype), &newname); if (ret != 0) { return ret; } free(track->filename); track->filename = strdup(newname); return ret; } /** * This function renames a single playlist object file holder. * This simply means that the PTP_OPC_ObjectFileName * property is updated, if this is supported by the device. * The playlist filename should nominally end with an extension * like ".pla". * * NOTE: if you want to change the metadata the device display * about a playlist you must not use this function, * use LIBMTP_Update_Playlist() instead! * * @param device a pointer to the device that contains the file. * @param playlist the playlist metadata of the playlist to rename. * On success, the name member is updated. Be aware, that * this name can be different than newname depending of device restrictions. * @param newname the new name for this object. * @return 0 on success, any other value means failure. * @see LIBMTP_Update_Playlist() */ int LIBMTP_Set_Playlist_Name(LIBMTP_mtpdevice_t *device, LIBMTP_playlist_t *playlist, const char* newname) { int ret; ret = set_object_filename(device, playlist->playlist_id, PTP_OFC_MTP_AbstractAudioVideoPlaylist, &newname); if (ret != 0) { return ret; } free(playlist->name); playlist->name = strdup(newname); return ret; } /** * This function renames a single album. * This simply means that the PTP_OPC_ObjectFileName * property is updated, if this is supported by the device. * The album filename should nominally end with an extension * like ".alb". * * NOTE: if you want to change the metadata the device display * about a playlist you must not use this function, * use LIBMTP_Update_Album() instead! * * @param device a pointer to the device that contains the file. * @param album the album metadata of the album to rename. * On success, the name member is updated. Be aware, that * this name can be different than newname depending of device restrictions. * @param newname the new name for this object. * @return 0 on success, any other value means failure. * @see LIBMTP_Update_Album() */ int LIBMTP_Set_Album_Name(LIBMTP_mtpdevice_t *device, LIBMTP_album_t *album, const char* newname) { int ret; ret = set_object_filename(device, album->album_id, PTP_OFC_MTP_AbstractAudioAlbum, &newname); if (ret != 0) { return ret; } free(album->name); album->name = strdup(newname); return ret; } /** * THIS FUNCTION IS DEPRECATED. PLEASE UPDATE YOUR CODE IN ORDER * NOT TO USE IT. * * @see LIBMTP_Set_File_Name() * @see LIBMTP_Set_Track_Name() * @see LIBMTP_Set_Folder_Name() * @see LIBMTP_Set_Playlist_Name() * @see LIBMTP_Set_Album_Name() */ int LIBMTP_Set_Object_Filename(LIBMTP_mtpdevice_t *device, uint32_t object_id, char* newname) { int ret; LIBMTP_file_t *file; file = LIBMTP_Get_Filemetadata(device, object_id); if (file == NULL) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Set_Object_Filename(): " "could not get file metadata for target object."); return -1; } ret = set_object_filename(device, object_id, map_libmtp_type_to_ptp_type(file->filetype), (const char **) &newname); free(file); return ret; } /** * Helper function. This indicates if a track exists on the device * @param device a pointer to the device to get the track from. * @param id the track ID of the track to retrieve. * @return TRUE (!=0) if the track exists, FALSE (0) if not */ int LIBMTP_Track_Exists(LIBMTP_mtpdevice_t *device, uint32_t const id) { PTPParams *params = (PTPParams *) device->params; uint16_t ret; PTPObject *ob; ret = ptp_object_want (params, id, 0, &ob); if (ret == PTP_RC_OK) return -1; return 0; } /** * This creates a new folder structure and allocates memory * for it. Notice that if you add strings to this structure they * will be freed by the corresponding LIBMTP_folder_track_t * operation later, so be careful of using strdup() when assigning * strings, e.g.: * * @return a pointer to the newly allocated folder structure. * @see LIBMTP_destroy_folder_t() */ LIBMTP_folder_t *LIBMTP_new_folder_t(void) { LIBMTP_folder_t *new = (LIBMTP_folder_t *) malloc(sizeof(LIBMTP_folder_t)); if (new == NULL) { return NULL; } new->folder_id = 0; new->parent_id = 0; new->storage_id = 0; new->name = NULL; new->sibling = NULL; new->child = NULL; return new; } /** * This recursively deletes the memory for a folder structure. * This shall typically be called on a top-level folder list to * destroy the entire folder tree. * * @param folder folder structure to destroy * @see LIBMTP_new_folder_t() */ void LIBMTP_destroy_folder_t(LIBMTP_folder_t *folder) { if(folder == NULL) { return; } //Destroy from the bottom up if(folder->child != NULL) { LIBMTP_destroy_folder_t(folder->child); } if(folder->sibling != NULL) { LIBMTP_destroy_folder_t(folder->sibling); } if(folder->name != NULL) { free(folder->name); } free(folder); } /** * Helper function. Returns a folder structure for a * specified id. * * @param folderlist list of folders to search * @id id of folder to look for * @return a folder or NULL if not found */ LIBMTP_folder_t *LIBMTP_Find_Folder(LIBMTP_folder_t *folderlist, uint32_t id) { LIBMTP_folder_t *ret = NULL; if(folderlist == NULL) { return NULL; } if(folderlist->folder_id == id) { return folderlist; } if(folderlist->sibling) { ret = LIBMTP_Find_Folder(folderlist->sibling, id); } if(folderlist->child && ret == NULL) { ret = LIBMTP_Find_Folder(folderlist->child, id); } return ret; } /** * Function used to recursively get subfolders from params. */ static LIBMTP_folder_t *get_subfolders_for_folder(LIBMTP_folder_t *list, uint32_t parent) { LIBMTP_folder_t *retfolders = NULL; LIBMTP_folder_t *children, *iter, *curr; iter = list->sibling; while(iter != list) { if (iter->parent_id != parent) { iter = iter->sibling; continue; } /* We know that iter is a child of 'parent', therefore we can safely * hold on to 'iter' locally since no one else will steal it * from the 'list' as we recurse. */ children = get_subfolders_for_folder(list, iter->folder_id); curr = iter; iter = iter->sibling; // Remove curr from the list. curr->child->sibling = curr->sibling; curr->sibling->child = curr->child; // Attach the children to curr. curr->child = children; // Put this folder into the list of siblings. curr->sibling = retfolders; retfolders = curr; } return retfolders; } /** * This returns a list of all folders available * on the current MTP device. * * @param device a pointer to the device to get the folder listing for. * @param storage a storage ID to get the folder list from * @return a list of folders */ LIBMTP_folder_t *LIBMTP_Get_Folder_List_For_Storage(LIBMTP_mtpdevice_t *device, uint32_t const storage) { PTPParams *params = (PTPParams *) device->params; LIBMTP_folder_t head, *rv; unsigned int i; // Get all the handles if we haven't already done that if (params->nrofobjects == 0) { flush_handles(device); } /* * This creates a temporary list of the folders, this is in a * reverse order and uses the Folder pointers that are already * in the Folder structure. From this we can then build up the * folder hierarchy with only looking at this temporary list, * and removing the folders from this temporary list as we go. * This significantly reduces the number of operations that we * have to do in building the folder hierarchy. Also since the * temp list is in reverse order, when we prepend to the sibling * list things are in the same order as they were originally * in the handle list. */ head.sibling = &head; head.child = &head; for (i = 0; i < params->nrofobjects; i++) { LIBMTP_folder_t *folder; PTPObject *ob; ob = ¶ms->objects[i]; if (ob->oi.ObjectFormat != PTP_OFC_Association) { continue; } if (storage != PTP_GOH_ALL_STORAGE && storage != ob->oi.StorageID) { continue; } /* * Do we know how to handle these? They are part * of the MTP 1.0 specification paragraph 3.6.4. * For AssociationDesc 0x00000001U ptp_mtp_getobjectreferences() * should be called on these to get the contained objects, but * we basically don't care. Hopefully parent_id is maintained for all * children, because we rely on that instead. */ if (ob->oi.AssociationDesc != 0x00000000U) { LIBMTP_INFO("MTP extended association type 0x%08x encountered\n", ob->oi.AssociationDesc); } // Create a folder struct... folder = LIBMTP_new_folder_t(); if (folder == NULL) { // malloc failure or so. return NULL; } folder->folder_id = ob->oid; folder->parent_id = ob->oi.ParentObject; folder->storage_id = ob->oi.StorageID; folder->name = (ob->oi.Filename) ? (char *)strdup(ob->oi.Filename) : NULL; // pretend sibling says next, and child says prev. folder->sibling = head.sibling; folder->child = &head; head.sibling->child = folder; head.sibling = folder; } // We begin at the given root folder and get them all recursively rv = get_subfolders_for_folder(&head, 0x00000000U); // Some buggy devices may have some files in the "root folder" // 0xffffffff so if 0x00000000 didn't return any folders, // look for children of the root 0xffffffffU if (rv == NULL) { rv = get_subfolders_for_folder(&head, 0xffffffffU); if (rv != NULL) LIBMTP_ERROR("Device have files in \"root folder\" 0xffffffffU - " "this is a firmware bug (but continuing)\n"); } // The temp list should be empty. Clean up any orphans just in case. while(head.sibling != &head) { LIBMTP_folder_t *curr = head.sibling; LIBMTP_INFO("Orphan folder with ID: 0x%08x name: \"%s\" encountered.\n", curr->folder_id, curr->name); curr->sibling->child = curr->child; curr->child->sibling = curr->sibling; curr->child = NULL; curr->sibling = NULL; LIBMTP_destroy_folder_t(curr); } return rv; } /** * This returns a list of all folders available * on the current MTP device. * * @param device a pointer to the device to get the folder listing for. * @return a list of folders */ LIBMTP_folder_t *LIBMTP_Get_Folder_List(LIBMTP_mtpdevice_t *device) { return LIBMTP_Get_Folder_List_For_Storage(device, PTP_GOH_ALL_STORAGE); } /** * This create a folder on the current MTP device. The PTP name * for a folder is "association". The PTP/MTP devices does not * have an internal "folder" concept really, it contains a flat * list of all files and some file are "associations" that other * files and folders may refer to as its "parent". * * @param device a pointer to the device to create the folder on. * @param name the name of the new folder. Note this can be modified * if the device does not support all the characters in the * name. * @param parent_id id of parent folder to add the new folder to, * or 0xFFFFFFFF to put it in the root directory. * @param storage_id id of the storage to add this new folder to. * notice that you cannot mismatch storage id and parent id: * they must both be on the same storage! Pass in 0 if you * want to create this folder on the default storage. * @return id to new folder or 0 if an error occurred */ uint32_t LIBMTP_Create_Folder(LIBMTP_mtpdevice_t *device, char *name, uint32_t parent_id, uint32_t storage_id) { PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; uint32_t parenthandle = 0; uint32_t store; PTPObjectInfo new_folder; uint16_t ret; uint32_t new_id = 0; if (storage_id == 0) { // I'm just guessing that a folder may require 512 bytes store = get_suggested_storage_id(device, 512, parent_id); } else { store = storage_id; } parenthandle = parent_id; memset(&new_folder, 0, sizeof(new_folder)); new_folder.Filename = name; if (FLAG_ONLY_7BIT_FILENAMES(ptp_usb)) { strip_7bit_from_utf8(new_folder.Filename); } new_folder.ObjectCompressedSize = 0; new_folder.ObjectFormat = PTP_OFC_Association; new_folder.ProtectionStatus = PTP_PS_NoProtection; new_folder.AssociationType = PTP_AT_GenericFolder; new_folder.ParentObject = parent_id; new_folder.StorageID = store; // Create the object if (!(params->device_flags & DEVICE_FLAG_BROKEN_SEND_OBJECT_PROPLIST) && ptp_operation_issupported(params,PTP_OC_MTP_SendObjectPropList)) { MTPProperties *props = (MTPProperties*)calloc(2,sizeof(MTPProperties)); props[0].property = PTP_OPC_ObjectFileName; props[0].datatype = PTP_DTC_STR; props[0].propval.str = name; props[1].property = PTP_OPC_Name; props[1].datatype = PTP_DTC_STR; props[1].propval.str = name; ret = ptp_mtp_sendobjectproplist(params, &store, &parenthandle, &new_id, PTP_OFC_Association, 0, props, 1); free(props); } else { ret = ptp_sendobjectinfo(params, &store, &parenthandle, &new_id, &new_folder); } if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Create_Folder: Could not send object info."); if (ret == PTP_RC_AccessDenied) { add_ptp_error_to_errorstack(device, ret, "ACCESS DENIED."); } return 0; } // NOTE: don't destroy the new_folder objectinfo, because it is statically referencing // several strings. add_object_to_cache(device, new_id); return new_id; } /** * This creates a new playlist metadata structure and allocates memory * for it. Notice that if you add strings to this structure they * will be freed by the corresponding LIBMTP_destroy_playlist_t * operation later, so be careful of using strdup() when assigning * strings, e.g.: * * 
 * LIBMTP_playlist_t *pl = LIBMTP_new_playlist_t();
 * pl->name = strdup(str);
 * ....
 * LIBMTP_destroy_playlist_t(pl);
 *
* * @return a pointer to the newly allocated metadata structure. * @see LIBMTP_destroy_playlist_t() */ LIBMTP_playlist_t *LIBMTP_new_playlist_t(void) { LIBMTP_playlist_t *new = (LIBMTP_playlist_t *) malloc(sizeof(LIBMTP_playlist_t)); if (new == NULL) { return NULL; } new->playlist_id = 0; new->parent_id = 0; new->storage_id = 0; new->name = NULL; new->tracks = NULL; new->no_tracks = 0; new->next = NULL; return new; } /** * This destroys a playlist metadata structure and deallocates the memory * used by it, including any strings. Never use a track metadata * structure again after calling this function on it. * @param playlist the playlist metadata to destroy. * @see LIBMTP_new_playlist_t() */ void LIBMTP_destroy_playlist_t(LIBMTP_playlist_t *playlist) { if (playlist == NULL) { return; } if (playlist->name != NULL) free(playlist->name); if (playlist->tracks != NULL) free(playlist->tracks); free(playlist); return; } /** * This function returns a list of the playlists available on the * device. Typical usage: * * 
 *
* * @param device a pointer to the device to get the playlist listing from. * @return a playlist list on success, else NULL. If there are no playlists * on the device, NULL will be returned as well. * @see LIBMTP_Get_Playlist() */ LIBMTP_playlist_t *LIBMTP_Get_Playlist_List(LIBMTP_mtpdevice_t *device) { PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; const int REQ_SPL = FLAG_PLAYLIST_SPL(ptp_usb); PTPParams *params = (PTPParams *) device->params; LIBMTP_playlist_t *retlists = NULL; LIBMTP_playlist_t *curlist = NULL; uint32_t i; // Get all the handles if we haven't already done that if (params->nrofobjects == 0) { flush_handles(device); } for (i = 0; i < params->nrofobjects; i++) { LIBMTP_playlist_t *pl; PTPObject *ob; uint16_t ret; ob = ¶ms->objects[i]; // Ignore stuff that isn't playlists // For Samsung players we must look for the .spl extension explicitly since // playlists are not stored as playlist objects. if ( REQ_SPL && is_spl_playlist(&ob->oi) ) { // Allocate a new playlist type pl = LIBMTP_new_playlist_t(); spl_to_playlist_t(device, &ob->oi, ob->oid, pl); } else if ( ob->oi.ObjectFormat != PTP_OFC_MTP_AbstractAudioVideoPlaylist ) { continue; } else { // Allocate a new playlist type pl = LIBMTP_new_playlist_t(); // Try to look up proper name, else use the oi->Filename field. pl->name = get_string_from_object(device, ob->oid, PTP_OPC_Name); if (pl->name == NULL) { pl->name = strdup(ob->oi.Filename); } pl->playlist_id = ob->oid; pl->parent_id = ob->oi.ParentObject; pl->storage_id = ob->oi.StorageID; // Then get the track listing for this playlist ret = ptp_mtp_getobjectreferences(params, pl->playlist_id, &pl->tracks, &pl->no_tracks); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Playlist_List(): " "could not get object references."); pl->tracks = NULL; pl->no_tracks = 0; } } // Add playlist to a list that will be returned afterwards. if (retlists == NULL) { retlists = pl; curlist = pl; } else { curlist->next = pl; curlist = pl; } // Call callback here if we decide to add that possibility... } return retlists; } /** * This function retrieves an individual playlist from the device. * @param device a pointer to the device to get the playlist from. * @param plid the unique ID of the playlist to retrieve. * @return a valid playlist metadata post or NULL on failure. * @see LIBMTP_Get_Playlist_List() */ LIBMTP_playlist_t *LIBMTP_Get_Playlist(LIBMTP_mtpdevice_t *device, uint32_t const plid) { PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; const int REQ_SPL = FLAG_PLAYLIST_SPL(ptp_usb); PTPParams *params = (PTPParams *) device->params; PTPObject *ob; LIBMTP_playlist_t *pl; uint16_t ret; // Get all the handles if we haven't already done that if (params->nrofobjects == 0) { flush_handles(device); } ret = ptp_object_want (params, plid, PTPOBJECT_OBJECTINFO_LOADED, &ob); if (ret != PTP_RC_OK) return NULL; // For Samsung players we must look for the .spl extension explicitly since // playlists are not stored as playlist objects. if ( REQ_SPL && is_spl_playlist(&ob->oi) ) { // Allocate a new playlist type pl = LIBMTP_new_playlist_t(); spl_to_playlist_t(device, &ob->oi, ob->oid, pl); return pl; } // Ignore stuff that isn't playlists else if ( ob->oi.ObjectFormat != PTP_OFC_MTP_AbstractAudioVideoPlaylist ) { return NULL; } // Allocate a new playlist type pl = LIBMTP_new_playlist_t(); pl->name = get_string_from_object(device, ob->oid, PTP_OPC_Name); if (pl->name == NULL) { pl->name = strdup(ob->oi.Filename); } pl->playlist_id = ob->oid; pl->parent_id = ob->oi.ParentObject; pl->storage_id = ob->oi.StorageID; // Then get the track listing for this playlist ret = ptp_mtp_getobjectreferences(params, pl->playlist_id, &pl->tracks, &pl->no_tracks); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Playlist(): Could not get object references."); pl->tracks = NULL; pl->no_tracks = 0; } return pl; } /** * This function creates a new abstract list such as a playlist * or an album. * * @param device a pointer to the device to create the new abstract list * on. * @param name the name of the new abstract list. * @param artist the artist of the new abstract list or NULL. * @param genre the genre of the new abstract list or NULL. * @param parenthandle the handle of the parent or 0 for no parent * i.e. the root folder. * @param objectformat the abstract list type to create. * @param suffix the ".foo" (4 characters) suffix to use for the virtual * "file" created by this operation. * @param newid a pointer to a variable that will hold the new object * ID if this call is successful. * @param tracks an array of tracks to associate with this list. * @param no_tracks the number of tracks in the list. * @return 0 on success, any other value means failure. */ static int create_new_abstract_list(LIBMTP_mtpdevice_t *device, char const * const name, char const * const artist, char const * const composer, char const * const genre, uint32_t const parenthandle, uint32_t const storageid, uint16_t const objectformat, char const * const suffix, uint32_t * const newid, uint32_t const * const tracks, uint32_t const no_tracks) { unsigned int i; int supported = 0; uint16_t ret; uint16_t *properties = NULL; uint32_t propcnt = 0; uint32_t store; uint32_t localph = parenthandle; uint8_t nonconsumable = 0x00U; /* By default it is consumable */ PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; char fname[256]; //uint8_t data[2]; // NULL check if (!name) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "create_new_abstract_list(): list name was NULL, using default name \"Unknown\""); return -1; } if (storageid == 0) { // I'm just guessing that an abstract list may require 512 bytes store = get_suggested_storage_id(device, 512, localph); } else { store = storageid; } // Check if we can create an object of this type for ( i=0; i < params->deviceinfo.ImageFormats_len; i++ ) { if (params->deviceinfo.ImageFormats[i] == objectformat) { supported = 1; break; } } if (!supported) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "create_new_abstract_list(): player does not support this abstract type"); LIBMTP_ERROR("Unsupported abstract list type: %04x\n", objectformat); return -1; } // add the new suffix if it isn't there fname[0] = '\0'; if (strlen(name) > strlen(suffix)) { char const * const suff = &name[strlen(name)-strlen(suffix)]; if (!strcmp(suff, suffix)) { // Home free. strncpy(fname, name, sizeof(fname)); } } // If it didn't end with "" then add that here. if (fname[0] == '\0') { strncpy(fname, name, sizeof(fname)-strlen(suffix)-1); strcat(fname, suffix); fname[sizeof(fname)-1] = '\0'; } if (ptp_operation_issupported(params, PTP_OC_MTP_SendObjectPropList) && !FLAG_BROKEN_SEND_OBJECT_PROPLIST(ptp_usb)) { MTPProperties *props = NULL; MTPProperties *prop = NULL; int nrofprops = 0; *newid = 0x00000000U; ret = ptp_mtp_getobjectpropssupported(params, objectformat, &propcnt, &properties); for (i=0;iObjectHandle = *newid; prop->property = PTP_OPC_ObjectFileName; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(fname); if (FLAG_ONLY_7BIT_FILENAMES(ptp_usb)) { strip_7bit_from_utf8(prop->propval.str); } break; case PTP_OPC_ProtectionStatus: prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = *newid; prop->property = PTP_OPC_ProtectionStatus; prop->datatype = PTP_DTC_UINT16; prop->propval.u16 = 0x0000U; /* Not protected */ break; case PTP_OPC_NonConsumable: prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = *newid; prop->property = PTP_OPC_NonConsumable; prop->datatype = PTP_DTC_UINT8; prop->propval.u8 = nonconsumable; break; case PTP_OPC_Name: if (name != NULL) { prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = *newid; prop->property = PTP_OPC_Name; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(name); } break; case PTP_OPC_AlbumArtist: if (artist != NULL) { prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = *newid; prop->property = PTP_OPC_AlbumArtist; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(artist); } break; case PTP_OPC_Artist: if (artist != NULL) { prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = *newid; prop->property = PTP_OPC_Artist; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(artist); } break; case PTP_OPC_Composer: if (composer != NULL) { prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = *newid; prop->property = PTP_OPC_Composer; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(composer); } break; case PTP_OPC_Genre: if (genre != NULL) { prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = *newid; prop->property = PTP_OPC_Genre; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(genre); } break; case PTP_OPC_DateModified: // Tag with current time if that is supported if (!FLAG_CANNOT_HANDLE_DATEMODIFIED(ptp_usb)) { prop = ptp_get_new_object_prop_entry(&props,&nrofprops); prop->ObjectHandle = *newid; prop->property = PTP_OPC_DateModified; prop->datatype = PTP_DTC_STR; prop->propval.str = get_iso8601_stamp(); } break; } } ptp_free_objectpropdesc(&opd); } free(properties); ret = ptp_mtp_sendobjectproplist(params, &store, &localph, newid, objectformat, 0, props, nrofprops); /* Free property list */ ptp_destroy_object_prop_list(props, nrofprops); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "create_new_abstract_list(): Could not send object property list."); if (ret == PTP_RC_AccessDenied) { add_ptp_error_to_errorstack(device, ret, "ACCESS DENIED."); } return -1; } // now send the blank object ret = ptp_sendobject(params, NULL, 0); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "create_new_abstract_list(): Could not send blank object data."); return -1; } } else if (ptp_operation_issupported(params,PTP_OC_SendObjectInfo)) { PTPObjectInfo new_object; new_object.Filename = fname; if (FLAG_ONLY_7BIT_FILENAMES(ptp_usb)) { strip_7bit_from_utf8(new_object.Filename); } // At one point this had to be one new_object.ObjectCompressedSize = 0; new_object.ObjectFormat = objectformat; // Create the object ret = ptp_sendobjectinfo(params, &store, &localph, newid, &new_object); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "create_new_abstract_list(): Could not send object info (the playlist itself)."); if (ret == PTP_RC_AccessDenied) { add_ptp_error_to_errorstack(device, ret, "ACCESS DENIED."); } return -1; } // NOTE: don't destroy new_object objectinfo afterwards - the strings it contains are // not copies. #if 0 /* * At one time we had to send this one blank data byte. * If we didn't, the handle will not be created and thus there is * no playlist. Possibly this was masking some bug, so removing it * now. */ data[0] = '\0'; data[1] = '\0'; ret = ptp_sendobject(params, data, 1); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "create_new_abstract_list(): Could not send blank object data."); return -1; } #endif // set the properties one by one ret = ptp_mtp_getobjectpropssupported(params, objectformat, &propcnt, &properties); for (i=0;i 0) { // Add tracks to the list as object references. ret = ptp_mtp_setobjectreferences (params, *newid, (uint32_t *) tracks, no_tracks); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "create_new_abstract_list(): could not add tracks as object references."); return -1; } } add_object_to_cache(device, *newid); return 0; } /** * This updates the metadata and track listing * for an abstract list. * @param device a pointer to the device that the abstract list * resides on. * @param name the name of the abstract list. * @param artist the artist of the abstract list or NULL. * @param genre the genre of the abstract list or NULL. * @param objecthandle the object to be updated. * @param objectformat the abstract list type to update. * @param tracks an array of tracks to associate with this list. * @param no_tracks the number of tracks in the list. * @return 0 on success, any other value means failure. */ static int update_abstract_list(LIBMTP_mtpdevice_t *device, char const * const name, char const * const artist, char const * const composer, char const * const genre, uint32_t const objecthandle, uint16_t const objectformat, uint32_t const * const tracks, uint32_t const no_tracks) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; uint16_t *properties = NULL; uint32_t propcnt = 0; unsigned int i; // First see which properties can be set // i.e only try to update this metadata for object tags that exist on the current player. ret = ptp_mtp_getobjectpropssupported(params, objectformat, &propcnt, &properties); if (ret != PTP_RC_OK) { // Just bail out for now, nothing is ever set. add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "update_abstract_list(): " "could not retrieve supported object properties."); return -1; } if (ptp_operation_issupported(params,PTP_OC_MTP_SetObjPropList) && !FLAG_BROKEN_SET_OBJECT_PROPLIST(ptp_usb)) { MTPProperties *props = NULL; MTPProperties *prop = NULL; int nrofprops = 0; for (i=0;iObjectHandle = objecthandle; prop->property = PTP_OPC_Name; prop->datatype = PTP_DTC_STR; if (name != NULL) prop->propval.str = strdup(name); break; case PTP_OPC_AlbumArtist: if (artist != NULL) { prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = objecthandle; prop->property = PTP_OPC_AlbumArtist; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(artist); } break; case PTP_OPC_Artist: if (artist != NULL) { prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = objecthandle; prop->property = PTP_OPC_Artist; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(artist); } break; case PTP_OPC_Composer: if (composer != NULL) { prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = objecthandle; prop->property = PTP_OPC_Composer; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(composer); } break; case PTP_OPC_Genre: if (genre != NULL) { prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = objecthandle; prop->property = PTP_OPC_Genre; prop->datatype = PTP_DTC_STR; prop->propval.str = strdup(genre); } break; case PTP_OPC_DateModified: if (!FLAG_CANNOT_HANDLE_DATEMODIFIED(ptp_usb)) { // Tag with current time if that is supported prop = ptp_get_new_object_prop_entry(&props, &nrofprops); prop->ObjectHandle = objecthandle; prop->property = PTP_OPC_DateModified; prop->datatype = PTP_DTC_STR; prop->propval.str = get_iso8601_stamp(); } break; default: break; } } ptp_free_objectpropdesc(&opd); } // proplist could be NULL if we can't write any properties if (props != NULL) { ret = ptp_mtp_setobjectproplist(params, props, nrofprops); ptp_destroy_object_prop_list(props, nrofprops); if (ret != PTP_RC_OK) { // TODO: return error of which property we couldn't set add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "update_abstract_list(): " "could not set object property list."); free(properties); return -1; } } } else if (ptp_operation_issupported(params,PTP_OC_MTP_SetObjectPropValue)) { for (i=0;itracks field of the metadata * contains a track listing, these tracks will be added to the * playlist. * @param device a pointer to the device to create the new playlist on. * @param metadata the metadata for the new playlist. If the function * exits with success, the playlist_id field of this * struct will contain the new playlist ID of the playlist. *
    *
  • metadata->parent_id should be set to the parent * (e.g. folder) to store this track in. Since some * devices are a bit picky about where files * are placed, a default folder will be chosen if libmtp * has detected one for the current filetype and this * parameter is set to 0. If this is 0 and no default folder * can be found, the file will be stored in the root folder. *
  • metadata->storage_id should be set to the * desired storage (e.g. memory card or whatever your device * presents) to store this track in. Setting this to 0 will store * the track on the primary storage. *
* @return 0 on success, any other value means failure. * @see LIBMTP_Update_Playlist() * @see LIBMTP_Delete_Object() */ int LIBMTP_Create_New_Playlist(LIBMTP_mtpdevice_t *device, LIBMTP_playlist_t * const metadata) { PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; uint32_t localph = metadata->parent_id; // Use a default folder if none given if (localph == 0) { if (device->default_playlist_folder != 0) localph = device->default_playlist_folder; else localph = device->default_music_folder; } metadata->parent_id = localph; // Samsung needs its own special type of playlists if(FLAG_PLAYLIST_SPL(ptp_usb)) { return playlist_t_to_spl(device, metadata); } // Just create a new abstract audio/video playlist... return create_new_abstract_list(device, metadata->name, NULL, NULL, NULL, localph, metadata->storage_id, PTP_OFC_MTP_AbstractAudioVideoPlaylist, get_playlist_extension(ptp_usb), &metadata->playlist_id, metadata->tracks, metadata->no_tracks); } /** * This routine updates a playlist based on the metadata * supplied. If the tracks field of the metadata * contains a track listing, these tracks will be added to the * playlist in place of those already present, i.e. the * previous track listing will be deleted. For Samsung devices the * playlist id (metadata->playlist_id) is likely to change. * @param device a pointer to the device to create the new playlist on. * @param metadata the metadata for the playlist to be updated. * notice that the field playlist_id * must contain the appropriate playlist ID. Playlist ID * be modified to a new playlist ID by the time the * function returns since edit-in-place is not always possible. * @return 0 on success, any other value means failure. * @see LIBMTP_Create_New_Playlist() * @see LIBMTP_Delete_Object() */ int LIBMTP_Update_Playlist(LIBMTP_mtpdevice_t *device, LIBMTP_playlist_t * const metadata) { // Samsung needs its own special type of playlists PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; if(FLAG_PLAYLIST_SPL(ptp_usb)) { return update_spl_playlist(device, metadata); } return update_abstract_list(device, metadata->name, NULL, NULL, NULL, metadata->playlist_id, PTP_OFC_MTP_AbstractAudioVideoPlaylist, metadata->tracks, metadata->no_tracks); } /** * This creates a new album metadata structure and allocates memory * for it. Notice that if you add strings to this structure they * will be freed by the corresponding LIBMTP_destroy_album_t * operation later, so be careful of using strdup() when assigning * strings. * * @return a pointer to the newly allocated metadata structure. * @see LIBMTP_destroy_album_t() */ LIBMTP_album_t *LIBMTP_new_album_t(void) { LIBMTP_album_t *new = (LIBMTP_album_t *) malloc(sizeof(LIBMTP_album_t)); if (new == NULL) { return NULL; } new->album_id = 0; new->parent_id = 0; new->storage_id = 0; new->name = NULL; new->artist = NULL; new->composer = NULL; new->genre = NULL; new->tracks = NULL; new->no_tracks = 0; new->next = NULL; return new; } /** * This recursively deletes the memory for an album structure * * @param album structure to destroy * @see LIBMTP_new_album_t() */ void LIBMTP_destroy_album_t(LIBMTP_album_t *album) { if (album == NULL) { return; } if (album->name != NULL) free(album->name); if (album->artist != NULL) free(album->artist); if (album->composer != NULL) free(album->composer); if (album->genre != NULL) free(album->genre); if (album->tracks != NULL) free(album->tracks); free(album); return; } /** * This function maps and copies a property onto the album metadata if applicable. */ static void pick_property_to_album_metadata(LIBMTP_mtpdevice_t *device, MTPProperties *prop, LIBMTP_album_t *alb) { switch (prop->property) { case PTP_OPC_Name: if (prop->propval.str != NULL) alb->name = strdup(prop->propval.str); else alb->name = NULL; break; case PTP_OPC_AlbumArtist: if (prop->propval.str != NULL) { // This should take precedence over plain "Artist" if (alb->artist != NULL) free(alb->artist); alb->artist = strdup(prop->propval.str); } else alb->artist = NULL; break; case PTP_OPC_Artist: if (prop->propval.str != NULL) { // Only use of AlbumArtist is not set if (alb->artist == NULL) alb->artist = strdup(prop->propval.str); } else alb->artist = NULL; break; case PTP_OPC_Composer: if (prop->propval.str != NULL) alb->composer = strdup(prop->propval.str); else alb->composer = NULL; break; case PTP_OPC_Genre: if (prop->propval.str != NULL) alb->genre = strdup(prop->propval.str); else alb->genre = NULL; break; } } /** * This function retrieves the album metadata for an album * given by a unique ID. * @param device a pointer to the device to get the track metadata off. * @param alb an album metadata metadata set to fill in. */ static void get_album_metadata(LIBMTP_mtpdevice_t *device, LIBMTP_album_t *alb) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; uint32_t i; MTPProperties *prop; PTPObject *ob; /* * If we have a cached, large set of metadata, then use it! */ ret = ptp_object_want(params, alb->album_id, PTPOBJECT_MTPPROPLIST_LOADED, &ob); if (ob->mtpprops) { prop = ob->mtpprops; for (i=0;inrofmtpprops;i++,prop++) pick_property_to_album_metadata(device, prop, alb); } else { uint16_t *props = NULL; uint32_t propcnt = 0; // First see which properties can be retrieved for albums ret = ptp_mtp_getobjectpropssupported(params, PTP_OFC_MTP_AbstractAudioAlbum, &propcnt, &props); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "get_album_metadata(): call to ptp_mtp_getobjectpropssupported() failed."); // Just bail out for now, nothing is ever set. return; } else { for (i=0;iname = get_string_from_object(device, ob->oid, PTP_OPC_Name); break; case PTP_OPC_AlbumArtist: if (alb->artist != NULL) free(alb->artist); alb->artist = get_string_from_object(device, ob->oid, PTP_OPC_AlbumArtist); break; case PTP_OPC_Artist: if (alb->artist == NULL) alb->artist = get_string_from_object(device, ob->oid, PTP_OPC_Artist); break; case PTP_OPC_Composer: alb->composer = get_string_from_object(device, ob->oid, PTP_OPC_Composer); break; case PTP_OPC_Genre: alb->genre = get_string_from_object(device, ob->oid, PTP_OPC_Genre); break; default: break; } } free(props); } } } /** * This function returns a list of the albums available on the * device. * * @param device a pointer to the device to get the album listing from. * @return an album list on success, else NULL. If there are no albums * on the device, NULL will be returned as well. * @see LIBMTP_Get_Album() */ LIBMTP_album_t *LIBMTP_Get_Album_List(LIBMTP_mtpdevice_t *device) { // Read all storage devices return LIBMTP_Get_Album_List_For_Storage(device, 0); } /** * This function returns a list of the albums available on the * device. You can filter on the storage ID. * * @param device a pointer to the device to get the album listing from. * @param storage_id ID of device storage (if null, all storages) * * @return an album list on success, else NULL. If there are no albums * on the device, NULL will be returned as well. * @see LIBMTP_Get_Album() */ LIBMTP_album_t *LIBMTP_Get_Album_List_For_Storage(LIBMTP_mtpdevice_t *device, uint32_t const storage_id) { PTPParams *params = (PTPParams *) device->params; LIBMTP_album_t *retalbums = NULL; LIBMTP_album_t *curalbum = NULL; uint32_t i; // Get all the handles if we haven't already done that if (params->nrofobjects == 0) flush_handles(device); for (i = 0; i < params->nrofobjects; i++) { LIBMTP_album_t *alb; PTPObject *ob; uint16_t ret; ob = ¶ms->objects[i]; // Ignore stuff that isn't an album if ( ob->oi.ObjectFormat != PTP_OFC_MTP_AbstractAudioAlbum ) continue; // Ignore stuff that isn't into the storage device if ((storage_id != 0) && (ob->oi.StorageID != storage_id )) continue; // Allocate a new album type alb = LIBMTP_new_album_t(); alb->album_id = ob->oid; alb->parent_id = ob->oi.ParentObject; alb->storage_id = ob->oi.StorageID; // Fetch supported metadata get_album_metadata(device, alb); // Then get the track listing for this album ret = ptp_mtp_getobjectreferences(params, alb->album_id, &alb->tracks, &alb->no_tracks); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Album_List(): Could not get object references."); alb->tracks = NULL; alb->no_tracks = 0; } // Add album to a list that will be returned afterwards. if (retalbums == NULL) { retalbums = alb; curalbum = alb; } else { curalbum->next = alb; curalbum = alb; } } return retalbums; } /** * This function retrieves an individual album from the device. * @param device a pointer to the device to get the album from. * @param albid the unique ID of the album to retrieve. * @return a valid album metadata or NULL on failure. * @see LIBMTP_Get_Album_List() */ LIBMTP_album_t *LIBMTP_Get_Album(LIBMTP_mtpdevice_t *device, uint32_t const albid) { PTPParams *params = (PTPParams *) device->params; uint16_t ret; PTPObject *ob; LIBMTP_album_t *alb; // Get all the handles if we haven't already done that if (params->nrofobjects == 0) flush_handles(device); ret = ptp_object_want(params, albid, PTPOBJECT_OBJECTINFO_LOADED, &ob); if (ret != PTP_RC_OK) return NULL; // Ignore stuff that isn't an album if (ob->oi.ObjectFormat != PTP_OFC_MTP_AbstractAudioAlbum) return NULL; // Allocate a new album type alb = LIBMTP_new_album_t(); alb->album_id = ob->oid; alb->parent_id = ob->oi.ParentObject; alb->storage_id = ob->oi.StorageID; // Fetch supported metadata get_album_metadata(device, alb); // Then get the track listing for this album ret = ptp_mtp_getobjectreferences(params, alb->album_id, &alb->tracks, &alb->no_tracks); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Album: Could not get object references."); alb->tracks = NULL; alb->no_tracks = 0; } return alb; } /** * This routine creates a new album based on the metadata * supplied. If the tracks field of the metadata * contains a track listing, these tracks will be added to the * album. * @param device a pointer to the device to create the new album on. * @param metadata the metadata for the new album. If the function * exits with success, the album_id field of this * struct will contain the new ID of the album. *
    *
  • metadata->parent_id should be set to the parent * (e.g. folder) to store this track in. Since some * devices are a bit picky about where files * are placed, a default folder will be chosen if libmtp * has detected one for the current filetype and this * parameter is set to 0. If this is 0 and no default folder * can be found, the file will be stored in the root folder. *
  • metadata->storage_id should be set to the * desired storage (e.g. memory card or whatever your device * presents) to store this track in. Setting this to 0 will store * the track on the primary storage. *
* @return 0 on success, any other value means failure. * @see LIBMTP_Update_Album() * @see LIBMTP_Delete_Object() */ int LIBMTP_Create_New_Album(LIBMTP_mtpdevice_t *device, LIBMTP_album_t * const metadata) { uint32_t localph = metadata->parent_id; // Use a default folder if none given if (localph == 0) { if (device->default_album_folder != 0) localph = device->default_album_folder; else localph = device->default_music_folder; } metadata->parent_id = localph; // Just create a new abstract album... return create_new_abstract_list(device, metadata->name, metadata->artist, metadata->composer, metadata->genre, localph, metadata->storage_id, PTP_OFC_MTP_AbstractAudioAlbum, ".alb", &metadata->album_id, metadata->tracks, metadata->no_tracks); } /** * This creates a new sample data metadata structure and allocates memory * for it. Notice that if you add strings to this structure they * will be freed by the corresponding LIBMTP_destroy_sampledata_t * operation later, so be careful of using strdup() when assigning * strings. * * @return a pointer to the newly allocated metadata structure. * @see LIBMTP_destroy_sampledata_t() */ LIBMTP_filesampledata_t *LIBMTP_new_filesampledata_t(void) { LIBMTP_filesampledata_t *new = (LIBMTP_filesampledata_t *) malloc(sizeof(LIBMTP_filesampledata_t)); if (new == NULL) { return NULL; } new->height=0; new->width = 0; new->data = NULL; new->duration = 0; new->size = 0; return new; } /** * This destroys a file sample metadata type. * @param sample the file sample metadata to be destroyed. */ void LIBMTP_destroy_filesampledata_t(LIBMTP_filesampledata_t * sample) { if (sample == NULL) { return; } if (sample->data != NULL) { free(sample->data); } free(sample); } /** * This routine figures out whether a certain filetype supports * representative samples (small thumbnail images) or not. This * typically applies to JPEG files, MP3 files and Album abstract * playlists, but in theory any filetype could support representative * samples. * @param device a pointer to the device which is to be examined. * @param filetype the fileype to examine, and return the representative sample * properties for. * @param sample this will contain a new sample type with the fields * filled in with suitable default values. For example, the * supported sample type will be set, the supported height and * width will be set to max values if it is an image sample, * and duration will also be given some suitable default value * which should not be exceeded on audio samples. If the * device does not support samples for this filetype, this * pointer will be NULL. If it is not NULL, the user must * destroy this struct with LIBMTP_destroy_filesampledata_t() * after use. * @return 0 on success, any other value means failure. * @see LIBMTP_Send_Representative_Sample() * @see LIBMTP_Create_New_Album() */ int LIBMTP_Get_Representative_Sample_Format(LIBMTP_mtpdevice_t *device, LIBMTP_filetype_t const filetype, LIBMTP_filesampledata_t ** sample) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; uint16_t *props = NULL; uint32_t propcnt = 0; unsigned int i; // TODO: Get rid of these when we can properly query the device. int support_data = 0; int support_format = 0; int support_height = 0; int support_width = 0; int support_duration = 0; int support_size = 0; PTPObjectPropDesc opd_height; PTPObjectPropDesc opd_width; PTPObjectPropDesc opd_format; PTPObjectPropDesc opd_duration; PTPObjectPropDesc opd_size; // Default to no type supported. *sample = NULL; ret = ptp_mtp_getobjectpropssupported(params, map_libmtp_type_to_ptp_type(filetype), &propcnt, &props); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Representative_Sample_Format(): could not get object properties."); return -1; } /* * TODO: when walking through these object properties, make calls to * a new function in ptp.h/ptp.c that can send the command * PTP_OC_MTP_GetObjectPropDesc to get max/min values of the properties * supported. */ for (i = 0; i < propcnt; i++) { switch(props[i]) { case PTP_OPC_RepresentativeSampleData: support_data = 1; break; case PTP_OPC_RepresentativeSampleFormat: support_format = 1; break; case PTP_OPC_RepresentativeSampleSize: support_size = 1; break; case PTP_OPC_RepresentativeSampleHeight: support_height = 1; break; case PTP_OPC_RepresentativeSampleWidth: support_width = 1; break; case PTP_OPC_RepresentativeSampleDuration: support_duration = 1; break; default: break; } } free(props); if (support_data && support_format && support_height && support_width && !support_duration) { // Something that supports height and width and not duration is likely to be JPEG LIBMTP_filesampledata_t *retsam = LIBMTP_new_filesampledata_t(); /* * Populate the sample format with the first supported format * * TODO: figure out how to pass back more than one format if more are * supported by the device. */ ptp_mtp_getobjectpropdesc (params, PTP_OPC_RepresentativeSampleFormat, map_libmtp_type_to_ptp_type(filetype), &opd_format); retsam->filetype = map_ptp_type_to_libmtp_type(opd_format.FORM.Enum.SupportedValue[0].u16); ptp_free_objectpropdesc(&opd_format); /* Populate the maximum image height */ ptp_mtp_getobjectpropdesc (params, PTP_OPC_RepresentativeSampleWidth, map_libmtp_type_to_ptp_type(filetype), &opd_width); retsam->width = opd_width.FORM.Range.MaximumValue.u32; ptp_free_objectpropdesc(&opd_width); /* Populate the maximum image width */ ptp_mtp_getobjectpropdesc (params, PTP_OPC_RepresentativeSampleHeight, map_libmtp_type_to_ptp_type(filetype), &opd_height); retsam->height = opd_height.FORM.Range.MaximumValue.u32; ptp_free_objectpropdesc(&opd_height); /* Populate the maximum size */ if (support_size) { ptp_mtp_getobjectpropdesc (params, PTP_OPC_RepresentativeSampleSize, map_libmtp_type_to_ptp_type(filetype), &opd_size); retsam->size = opd_size.FORM.Range.MaximumValue.u32; ptp_free_objectpropdesc(&opd_size); } *sample = retsam; } else if (support_data && support_format && !support_height && !support_width && support_duration) { // Another qualified guess LIBMTP_filesampledata_t *retsam = LIBMTP_new_filesampledata_t(); /* * Populate the sample format with the first supported format * * TODO: figure out how to pass back more than one format if more are * supported by the device. */ ptp_mtp_getobjectpropdesc (params, PTP_OPC_RepresentativeSampleFormat, map_libmtp_type_to_ptp_type(filetype), &opd_format); retsam->filetype = map_ptp_type_to_libmtp_type(opd_format.FORM.Enum.SupportedValue[0].u16); ptp_free_objectpropdesc(&opd_format); /* Populate the maximum duration */ ptp_mtp_getobjectpropdesc (params, PTP_OPC_RepresentativeSampleDuration, map_libmtp_type_to_ptp_type(filetype), &opd_duration); retsam->duration = opd_duration.FORM.Range.MaximumValue.u32; ptp_free_objectpropdesc(&opd_duration); /* Populate the maximum size */ if (support_size) { ptp_mtp_getobjectpropdesc (params, PTP_OPC_RepresentativeSampleSize, map_libmtp_type_to_ptp_type(filetype), &opd_size); retsam->size = opd_size.FORM.Range.MaximumValue.u32; ptp_free_objectpropdesc(&opd_size); } *sample = retsam; } return 0; } /** * This routine sends representative sample data for an object. * This uses the RepresentativeSampleData property of the album, * if the device supports it. The data should be of a format acceptable * to the player (for iRiver and Creative, this seems to be JPEG) and * must not be too large. (for a Creative, max seems to be about 20KB.) * Check by calling LIBMTP_Get_Representative_Sample_Format() to get * maximum size, dimensions, etc.. * @param device a pointer to the device which the object is on. * @param id unique id of the object to set artwork for. * @param sampledata pointer to LIBMTP_filesampledata_t struct containing data * @return 0 on success, any other value means failure. * @see LIBMTP_Get_Representative_Sample() * @see LIBMTP_Get_Representative_Sample_Format() * @see LIBMTP_Create_New_Album() */ int LIBMTP_Send_Representative_Sample(LIBMTP_mtpdevice_t *device, uint32_t const id, LIBMTP_filesampledata_t *sampledata) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; PTP_USB *ptp_usb = (PTP_USB*) device->usbinfo; PTPPropertyValue propval; PTPObject *ob; uint32_t i; uint16_t *props = NULL; uint32_t propcnt = 0; int supported = 0; // get the file format for the object we're going to send representative data for ret = ptp_object_want (params, id, PTPOBJECT_OBJECTINFO_LOADED, &ob); if (ret != PTP_RC_OK) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_Representative_Sample(): could not get object info."); return -1; } // check that we can send representative sample data for this object format ret = ptp_mtp_getobjectpropssupported(params, ob->oi.ObjectFormat, &propcnt, &props); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Send_Representative_Sample(): could not get object properties."); return -1; } for (i = 0; i < propcnt; i++) { if (props[i] == PTP_OPC_RepresentativeSampleData) { supported = 1; break; } } if (!supported) { free(props); add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Send_Representative_Sample(): object type doesn't support RepresentativeSampleData."); return -1; } free(props); // Go ahead and send the data propval.a.count = sampledata->size; propval.a.v = malloc(sizeof(PTPPropertyValue) * sampledata->size); for (i = 0; i < sampledata->size; i++) { propval.a.v[i].u8 = sampledata->data[i]; } ret = ptp_mtp_setobjectpropvalue(params,id,PTP_OPC_RepresentativeSampleData, &propval,PTP_DTC_AUINT8); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Send_Representative_Sample(): could not send sample data."); free(propval.a.v); return -1; } free(propval.a.v); /* Set the height and width if the sample is an image, otherwise just * set the duration and size */ switch(sampledata->filetype) { case LIBMTP_FILETYPE_JPEG: case LIBMTP_FILETYPE_JFIF: case LIBMTP_FILETYPE_TIFF: case LIBMTP_FILETYPE_BMP: case LIBMTP_FILETYPE_GIF: case LIBMTP_FILETYPE_PICT: case LIBMTP_FILETYPE_PNG: if (!FLAG_BROKEN_SET_SAMPLE_DIMENSIONS(ptp_usb)) { // For images, set the height and width set_object_u32(device, id, PTP_OPC_RepresentativeSampleHeight, sampledata->height); set_object_u32(device, id, PTP_OPC_RepresentativeSampleWidth, sampledata->width); } break; default: // For anything not an image, set the duration and size set_object_u32(device, id, PTP_OPC_RepresentativeSampleDuration, sampledata->duration); set_object_u32(device, id, PTP_OPC_RepresentativeSampleSize, sampledata->size); break; } return 0; } /** * This routine gets representative sample data for an object. * This uses the RepresentativeSampleData property of the album, * if the device supports it. * @param device a pointer to the device which the object is on. * @param id unique id of the object to get data for. * @param sampledata pointer to LIBMTP_filesampledata_t struct to receive data * @return 0 on success, any other value means failure. * @see LIBMTP_Send_Representative_Sample() * @see LIBMTP_Get_Representative_Sample_Format() * @see LIBMTP_Create_New_Album() */ int LIBMTP_Get_Representative_Sample(LIBMTP_mtpdevice_t *device, uint32_t const id, LIBMTP_filesampledata_t *sampledata) { uint16_t ret; PTPParams *params = (PTPParams *) device->params; PTPPropertyValue propval; PTPObject *ob; uint32_t i; uint16_t *props = NULL; uint32_t propcnt = 0; int supported = 0; // get the file format for the object we're going to send representative data for ret = ptp_object_want (params, id, PTPOBJECT_OBJECTINFO_LOADED, &ob); if (ret != PTP_RC_OK) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Get_Representative_Sample(): could not get object info."); return -1; } // check that we can store representative sample data for this object format ret = ptp_mtp_getobjectpropssupported(params, ob->oi.ObjectFormat, &propcnt, &props); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Representative_Sample(): could not get object properties."); return -1; } for (i = 0; i < propcnt; i++) { if (props[i] == PTP_OPC_RepresentativeSampleData) { supported = 1; break; } } if (!supported) { free(props); add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_Get_Representative_Sample(): object type doesn't support RepresentativeSampleData."); return -1; } free(props); // Get the data ret = ptp_mtp_getobjectpropvalue(params,id,PTP_OPC_RepresentativeSampleData, &propval,PTP_DTC_AUINT8); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Get_Representative_Sample(): could not get sample data."); return -1; } // Store it sampledata->size = propval.a.count; sampledata->data = malloc(sizeof(PTPPropertyValue) * propval.a.count); for (i = 0; i < propval.a.count; i++) { sampledata->data[i] = propval.a.v[i].u8; } free(propval.a.v); // Get the other properties sampledata->width = get_u32_from_object(device, id, PTP_OPC_RepresentativeSampleWidth, 0); sampledata->height = get_u32_from_object(device, id, PTP_OPC_RepresentativeSampleHeight, 0); sampledata->duration = get_u32_from_object(device, id, PTP_OPC_RepresentativeSampleDuration, 0); sampledata->filetype = map_ptp_type_to_libmtp_type( get_u16_from_object(device, id, PTP_OPC_RepresentativeSampleFormat, LIBMTP_FILETYPE_UNKNOWN)); return 0; } /** * Retrieve the thumbnail for a file. * @param device a pointer to the device to get the thumbnail from. * @param id the object ID of the file to retrieve the thumbnail for. * @return 0 on success, any other value means failure. */ int LIBMTP_Get_Thumbnail(LIBMTP_mtpdevice_t *device, uint32_t const id, unsigned char **data, unsigned int *size) { PTPParams *params = (PTPParams *) device->params; uint16_t ret; ret = ptp_getthumb(params, id, data, size); if (ret == PTP_RC_OK) return 0; return -1; } int LIBMTP_GetPartialObject(LIBMTP_mtpdevice_t *device, uint32_t const id, uint64_t offset, uint32_t maxbytes, unsigned char **data, unsigned int *size) { PTPParams *params = (PTPParams *) device->params; uint16_t ret; LIBMTP_file_t *mtpfile = LIBMTP_Get_Filemetadata(device, id); if (!mtpfile) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_GetPartialObject: could not find mtpfile"); *size = 0; return -1; } /* Some devices do not like reading over the end and hang instead of progressing */ if (offset >= mtpfile->filesize) { *size = 0; LIBMTP_destroy_file_t (mtpfile); return 0; } if (offset + maxbytes > mtpfile->filesize) { maxbytes = mtpfile->filesize - offset; } /* do not need it anymore */ LIBMTP_destroy_file_t (mtpfile); /* The MTP stack of Samsung Galaxy devices has a mysterious bug in * GetPartialObject. When GetPartialObject is invoked to read the * last bytes of a file and the amount of data to read is such that * the last USB packet sent in the reply matches exactly the USB 2.0 * packet size, then the Samsung Galaxy device hangs, resulting in a * timeout error. * As a workaround, we read one less byte instead of reaching the * end of the file, forcing the caller to perform an additional read * to get the last byte (i.e. the final read that would fail is * replaced with two partial reads that succeed). */ if ((params->device_flags & DEVICE_FLAG_SAMSUNG_OFFSET_BUG) && (maxbytes % PTP_USB_BULK_HS_MAX_PACKET_LEN_READ) == (PTP_USB_BULK_HS_MAX_PACKET_LEN_READ - PTP_USB_BULK_HDR_LEN)) { maxbytes--; } if (!ptp_operation_issupported(params, PTP_OC_ANDROID_GetPartialObject64)) { if (!ptp_operation_issupported(params, PTP_OC_GetPartialObject)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_GetPartialObject: PTP_OC_GetPartialObject not supported"); return -1; } if (offset >> 32 != 0) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_GetPartialObject: PTP_OC_GetPartialObject only supports 32bit offsets"); return -1; } ret = ptp_getpartialobject(params, id, (uint32_t)offset, maxbytes, data, size); } else { ret = ptp_android_getpartialobject64(params, id, offset, maxbytes, data, size); } if (ret == PTP_RC_OK) return 0; return -1; } int LIBMTP_SendPartialObject(LIBMTP_mtpdevice_t *device, uint32_t const id, uint64_t offset, unsigned char *data, unsigned int size) { PTPParams *params = (PTPParams *) device->params; uint16_t ret; if (!ptp_operation_issupported(params, PTP_OC_ANDROID_SendPartialObject)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_SendPartialObject: PTP_OC_ANDROID_SendPartialObject not supported"); return -1; } ret = ptp_android_sendpartialobject(params, id, offset, data, size); if (ret == PTP_RC_OK) return 0; return -1; } int LIBMTP_BeginEditObject(LIBMTP_mtpdevice_t *device, uint32_t const id) { PTPParams *params = (PTPParams *) device->params; uint16_t ret; if (!ptp_operation_issupported(params, PTP_OC_ANDROID_BeginEditObject)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_BeginEditObject: PTP_OC_ANDROID_BeginEditObject not supported"); return -1; } ret = ptp_android_begineditobject(params, id); if (ret == PTP_RC_OK) return 0; return -1; } int LIBMTP_EndEditObject(LIBMTP_mtpdevice_t *device, uint32_t const id) { PTPParams *params = (PTPParams *) device->params; uint16_t ret; if (!ptp_operation_issupported(params, PTP_OC_ANDROID_EndEditObject)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_EndEditObject: PTP_OC_ANDROID_EndEditObject not supported"); return -1; } ret = ptp_android_endeditobject(params, id); if (ret == PTP_RC_OK) { // update cached object properties if metadata cache exists update_metadata_cache(device, id); return 0; } return -1; } int LIBMTP_TruncateObject(LIBMTP_mtpdevice_t *device, uint32_t const id, uint64_t offset) { PTPParams *params = (PTPParams *) device->params; uint16_t ret; if (!ptp_operation_issupported(params, PTP_OC_ANDROID_TruncateObject)) { add_error_to_errorstack(device, LIBMTP_ERROR_GENERAL, "LIBMTP_TruncateObject: PTP_OC_ANDROID_TruncateObject not supported"); return -1; } ret = ptp_android_truncate(params, id, offset); if (ret == PTP_RC_OK) return 0; return -1; } /** * This routine updates an album based on the metadata * supplied. If the tracks field of the metadata * contains a track listing, these tracks will be added to the * album in place of those already present, i.e. the * previous track listing will be deleted. * @param device a pointer to the device to create the new album on. * @param metadata the metadata for the album to be updated. * notice that the field album_id * must contain the appropriate album ID. * @return 0 on success, any other value means failure. * @see LIBMTP_Create_New_Album() * @see LIBMTP_Delete_Object() */ int LIBMTP_Update_Album(LIBMTP_mtpdevice_t *device, LIBMTP_album_t const * const metadata) { return update_abstract_list(device, metadata->name, metadata->artist, metadata->composer, metadata->genre, metadata->album_id, PTP_OFC_MTP_AbstractAudioAlbum, metadata->tracks, metadata->no_tracks); } /** * Dummy function needed to interface to upstream * ptp.c/ptp.h files. */ void ptp_nikon_getptpipguid (unsigned char* guid) { return; } /** * Add an object to cache. * @param device the device which may have a cache to which the object should be added. * @param object_id the object to add to the cache. */ static void add_object_to_cache(LIBMTP_mtpdevice_t *device, uint32_t object_id) { PTPParams *params = (PTPParams *)device->params; uint16_t ret; ret = ptp_add_object_to_cache(params, object_id); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "add_object_to_cache(): couldn't add object to cache"); } } /** * Update cache after object has been modified * @param device the device which may have a cache to which the object should be updated. * @param object_id the object to update. */ static void update_metadata_cache(LIBMTP_mtpdevice_t *device, uint32_t object_id) { PTPParams *params = (PTPParams *)device->params; ptp_remove_object_from_cache(params, object_id); add_object_to_cache(device, object_id); } /** * Issue custom (e.g. vendor specific) operation (without data phase) * @param device a pointer to the device to send custom operation to. * @param code operation code to send. * @param n_param number of parameters passed. * @param ... uint32_t operation specific parameters. */ int LIBMTP_Custom_Operation(LIBMTP_mtpdevice_t *device, uint16_t code, int n_param, ...) { PTPParams *params = (PTPParams *) device->params; PTPContainer ptp; va_list args; uint16_t ret; int i; ptp.Code = code; ptp.Nparam = n_param; va_start(args, n_param); for (i = 0; i < n_param; i++) (&ptp.Param1)[i] = va_arg(args, uint32_t); va_end(args); ret = ptp_transaction_new(params, &ptp, PTP_DP_NODATA, 0, NULL); if (ret != PTP_RC_OK) { add_ptp_error_to_errorstack(device, ret, "LIBMTP_Custom_Operation(): failed to execute operation."); return -1; } return 0; }