/* ** Copyright (C) 1999-2011 Erik de Castro Lopo ** ** This program 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 2.1 of the License, or ** (at your option) any later version. ** ** This program 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 program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "sfconfig.h" #include #include #include #include #include "sndfile.h" #include "sfendian.h" #include "common.h" #include "wav_w64.h" /*------------------------------------------------------------------------------ ** W64 files use 16 byte markers as opposed to the four byte marker of ** WAV files. ** For comparison purposes, an integer is required, so make an integer ** hash for the 16 bytes using MAKE_HASH16 macro, but also create a 16 ** byte array containing the complete 16 bytes required when writing the ** header. */ #define MAKE_HASH16(x0,x1,x2,x3,x4,x5,x6,x7,x8,x9,xa,xb,xc,xd,xe,xf) \ ( (x0) ^ ((x1) << 1) ^ ((x2) << 2) ^ ((x3) << 3) ^ \ ((x4) << 4) ^ ((x5) << 5) ^ ((x6) << 6) ^ ((x7) << 7) ^ \ ((x8) << 8) ^ ((x9) << 9) ^ ((xa) << 10) ^ ((xb) << 11) ^ \ ((xc) << 12) ^ ((xd) << 13) ^ ((xe) << 14) ^ ((xf) << 15) ) #define MAKE_MARKER16(name,x0,x1,x2,x3,x4,x5,x6,x7,x8,x9,xa,xb,xc,xd,xe,xf) \ static unsigned char name [16] = { (x0), (x1), (x2), (x3), (x4), (x5), \ (x6), (x7), (x8), (x9), (xa), (xb), (xc), (xd), (xe), (xf) } #define riff_HASH16 MAKE_HASH16 ('r', 'i', 'f', 'f', 0x2E, 0x91, 0xCF, 0x11, \ 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00) #define wave_HASH16 MAKE_HASH16 ('w', 'a', 'v', 'e', 0xF3, 0xAC, 0xD3, 0x11, \ 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) #define fmt_HASH16 MAKE_HASH16 ('f', 'm', 't', ' ', 0xF3, 0xAC, 0xD3, 0x11, \ 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) #define fact_HASH16 MAKE_HASH16 ('f', 'a', 'c', 't', 0xF3, 0xAC, 0xD3, 0x11, \ 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) #define data_HASH16 MAKE_HASH16 ('d', 'a', 't', 'a', 0xF3, 0xAC, 0xD3, 0x11, \ 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) #define ACID_HASH16 MAKE_HASH16 (0x6D, 0x07, 0x1C, 0xEA, 0xA3, 0xEF, 0x78, 0x4C, \ 0x90, 0x57, 0x7F, 0x79, 0xEE, 0x25, 0x2A, 0xAE) #define levl_HASH16 MAKE_HASH16 (0x6c, 0x65, 0x76, 0x6c, 0xf3, 0xac, 0xd3, 0x11, \ 0xd1, 0x8c, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) #define list_HASH16 MAKE_HASH16 (0x6C, 0x69, 0x73, 0x74, 0x2F, 0x91, 0xCF, 0x11, \ 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00) #define junk_HASH16 MAKE_HASH16 (0x6A, 0x75, 0x6E, 0x6b, 0xF3, 0xAC, 0xD3, 0x11, \ 0x8C, 0xD1, 0x00, 0xC0, 0x4f, 0x8E, 0xDB, 0x8A) #define bext_MARKER MAKE_HASH16 (0x62, 0x65, 0x78, 0x74, 0xf3, 0xac, 0xd3, 0xaa, \ 0xd1, 0x8c, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) #define MARKER_HASH16 MAKE_HASH16 (0x56, 0x62, 0xf7, 0xab, 0x2d, 0x39, 0xd2, 0x11, \ 0x86, 0xc7, 0x00, 0xc0, 0x4f, 0x8e, 0xdb, 0x8a) #define SUMLIST_HASH16 MAKE_HASH16 (0xBC, 0x94, 0x5F, 0x92, 0x5A, 0x52, 0xD2, 0x11, \ 0x86, 0xDC, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) MAKE_MARKER16 (riff_MARKER16, 'r', 'i', 'f', 'f', 0x2E, 0x91, 0xCF, 0x11, 0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00) ; MAKE_MARKER16 (wave_MARKER16, 'w', 'a', 'v', 'e', 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; MAKE_MARKER16 (fmt_MARKER16, 'f', 'm', 't', ' ', 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; MAKE_MARKER16 (fact_MARKER16, 'f', 'a', 'c', 't', 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; MAKE_MARKER16 (data_MARKER16, 'd', 'a', 't', 'a', 0xF3, 0xAC, 0xD3, 0x11, 0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A) ; enum { HAVE_riff = 0x01, HAVE_wave = 0x02, HAVE_fmt = 0x04, HAVE_fact = 0x08, HAVE_data = 0x20 } ; /*------------------------------------------------------------------------------ * Private static functions. */ static int w64_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) ; static int w64_write_header (SF_PRIVATE *psf, int calc_length) ; static int w64_close (SF_PRIVATE *psf) ; /*------------------------------------------------------------------------------ ** Public function. */ int w64_open (SF_PRIVATE *psf) { WAV_PRIVATE * wpriv ; int subformat, error, blockalign = 0, framesperblock = 0 ; if ((wpriv = calloc (1, sizeof (WAV_PRIVATE))) == NULL) return SFE_MALLOC_FAILED ; psf->container_data = wpriv ; if (psf->file.mode == SFM_READ || (psf->file.mode == SFM_RDWR &&psf->filelength > 0)) { if ((error = w64_read_header (psf, &blockalign, &framesperblock))) return error ; } ; if ((SF_CONTAINER (psf->sf.format)) != SF_FORMAT_W64) return SFE_BAD_OPEN_FORMAT ; subformat = SF_CODEC (psf->sf.format) ; if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) { if (psf->is_pipe) return SFE_NO_PIPE_WRITE ; psf->endian = SF_ENDIAN_LITTLE ; /* All W64 files are little endian. */ psf->blockwidth = psf->bytewidth * psf->sf.channels ; if (subformat == SF_FORMAT_IMA_ADPCM || subformat == SF_FORMAT_MS_ADPCM) { blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; framesperblock = -1 ; /* FIXME : This block must go */ psf->filelength = SF_COUNT_MAX ; psf->datalength = psf->filelength ; if (psf->sf.frames <= 0) psf->sf.frames = (psf->blockwidth) ? psf->filelength / psf->blockwidth : psf->filelength ; /* EMXIF : This block must go */ } ; if ((error = w64_write_header (psf, SF_FALSE))) return error ; psf->write_header = w64_write_header ; } ; psf->container_close = w64_close ; switch (subformat) { case SF_FORMAT_PCM_U8 : error = pcm_init (psf) ; break ; case SF_FORMAT_PCM_16 : case SF_FORMAT_PCM_24 : case SF_FORMAT_PCM_32 : error = pcm_init (psf) ; break ; case SF_FORMAT_ULAW : error = ulaw_init (psf) ; break ; case SF_FORMAT_ALAW : error = alaw_init (psf) ; break ; /* Lite remove start */ case SF_FORMAT_FLOAT : error = float32_init (psf) ; break ; case SF_FORMAT_DOUBLE : error = double64_init (psf) ; break ; case SF_FORMAT_IMA_ADPCM : error = wav_w64_ima_init (psf, blockalign, framesperblock) ; break ; case SF_FORMAT_MS_ADPCM : error = wav_w64_msadpcm_init (psf, blockalign, framesperblock) ; break ; /* Lite remove end */ case SF_FORMAT_GSM610 : error = gsm610_init (psf) ; break ; default : return SFE_UNIMPLEMENTED ; } ; return error ; } /* w64_open */ /*========================================================================= ** Private functions. */ static int w64_read_header (SF_PRIVATE *psf, int *blockalign, int *framesperblock) { WAV_PRIVATE *wpriv ; WAV_FMT *wav_fmt ; int dword = 0, marker, format = 0 ; sf_count_t chunk_size, bytesread = 0 ; int parsestage = 0, error, done = 0 ; if ((wpriv = psf->container_data) == NULL) return SFE_INTERNAL ; wav_fmt = &wpriv->wav_fmt ; /* Set position to start of file to begin reading header. */ psf_binheader_readf (psf, "p", 0) ; while (! done) { /* Each new chunk must start on an 8 byte boundary, so jump if needed. */ if (psf->headindex & 0x7) psf_binheader_readf (psf, "j", 8 - (psf->headindex & 0x7)) ; /* Generate hash of 16 byte marker. */ bytesread += psf_binheader_readf (psf, "h", &marker) ; chunk_size = 0 ; switch (marker) { case riff_HASH16 : if (parsestage) return SFE_W64_NO_RIFF ; bytesread += psf_binheader_readf (psf, "e8", &chunk_size) ; if (psf->filelength != chunk_size) psf_log_printf (psf, "riff : %D (should be %D)\n", chunk_size, psf->filelength) ; else psf_log_printf (psf, "riff : %D\n", chunk_size) ; parsestage |= HAVE_riff ; break ; case ACID_HASH16: psf_log_printf (psf, "Looks like an ACID file. Exiting.\n") ; return SFE_UNIMPLEMENTED ; case wave_HASH16 : if ((parsestage & HAVE_riff) != HAVE_riff) return SFE_W64_NO_WAVE ; psf_log_printf (psf, "wave\n") ; parsestage |= HAVE_wave ; break ; case fmt_HASH16 : if ((parsestage & (HAVE_riff | HAVE_wave)) != (HAVE_riff | HAVE_wave)) return SFE_WAV_NO_FMT ; bytesread += psf_binheader_readf (psf, "e8", &chunk_size) ; psf_log_printf (psf, " fmt : %D\n", chunk_size) ; /* size of 16 byte marker and 8 byte chunk_size value. */ chunk_size -= 24 ; if ((error = wav_w64_read_fmt_chunk (psf, (int) chunk_size))) return error ; if (chunk_size % 8) psf_binheader_readf (psf, "j", 8 - (chunk_size % 8)) ; format = wav_fmt->format ; parsestage |= HAVE_fmt ; break ; case fact_HASH16: { sf_count_t frames ; psf_binheader_readf (psf, "e88", &chunk_size, &frames) ; psf_log_printf (psf, " fact : %D\n frames : %D\n", chunk_size, frames) ; } ; break ; case data_HASH16 : if ((parsestage & (HAVE_riff | HAVE_wave | HAVE_fmt)) != (HAVE_riff | HAVE_wave | HAVE_fmt)) return SFE_W64_NO_DATA ; psf_binheader_readf (psf, "e8", &chunk_size) ; psf->dataoffset = psf_ftell (psf) ; psf->datalength = chunk_size - 24 ; if (chunk_size % 8) chunk_size += 8 - (chunk_size % 8) ; psf_log_printf (psf, "data : %D\n", chunk_size) ; parsestage |= HAVE_data ; if (! psf->sf.seekable) break ; /* Seek past data and continue reading header. */ psf_fseek (psf, chunk_size, SEEK_CUR) ; break ; case levl_HASH16 : psf_binheader_readf (psf, "e8", &chunk_size) ; psf_log_printf (psf, "levl : %D\n", chunk_size) ; dword = chunk_size ; psf_binheader_readf (psf, "j", dword - 24) ; break ; case list_HASH16 : psf_binheader_readf (psf, "e8", &chunk_size) ; psf_log_printf (psf, "list : %D\n", chunk_size) ; dword = chunk_size ; psf_binheader_readf (psf, "j", dword - 24) ; break ; case junk_HASH16 : psf_binheader_readf (psf, "e8", &chunk_size) ; psf_log_printf (psf, "junk : %D\n", chunk_size) ; dword = chunk_size ; psf_binheader_readf (psf, "j", dword - 24) ; break ; case bext_MARKER : psf_binheader_readf (psf, "e8", &chunk_size) ; psf_log_printf (psf, "bext : %D\n", chunk_size) ; dword = chunk_size ; psf_binheader_readf (psf, "j", dword - 24) ; break ; case MARKER_HASH16 : psf_binheader_readf (psf, "e8", &chunk_size) ; psf_log_printf (psf, "marker : %D\n", chunk_size) ; dword = chunk_size ; psf_binheader_readf (psf, "j", dword - 24) ; break ; case SUMLIST_HASH16 : psf_binheader_readf (psf, "e8", &chunk_size) ; psf_log_printf (psf, "summary list : %D\n", chunk_size) ; dword = chunk_size ; psf_binheader_readf (psf, "j", dword - 24) ; break ; default : psf_log_printf (psf, "*** Unknown chunk marker : %X. Exiting parser.\n", marker) ; done = SF_TRUE ; break ; } ; /* switch (dword) */ if (psf->sf.seekable == 0 && (parsestage & HAVE_data)) break ; if (psf_ftell (psf) >= (psf->filelength - (2 * SIGNED_SIZEOF (dword)))) break ; } ; /* while (1) */ if (psf->dataoffset <= 0) return SFE_W64_NO_DATA ; psf->endian = SF_ENDIAN_LITTLE ; /* All W64 files are little endian. */ if (psf_ftell (psf) != psf->dataoffset) psf_fseek (psf, psf->dataoffset, SEEK_SET) ; if (psf->blockwidth) { if (psf->filelength - psf->dataoffset < psf->datalength) psf->sf.frames = (psf->filelength - psf->dataoffset) / psf->blockwidth ; else psf->sf.frames = psf->datalength / psf->blockwidth ; } ; switch (format) { case WAVE_FORMAT_PCM : case WAVE_FORMAT_EXTENSIBLE : /* extensible might be FLOAT, MULAW, etc as well! */ psf->sf.format = SF_FORMAT_W64 | u_bitwidth_to_subformat (psf->bytewidth * 8) ; break ; case WAVE_FORMAT_MULAW : psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_ULAW) ; break ; case WAVE_FORMAT_ALAW : psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_ALAW) ; break ; case WAVE_FORMAT_MS_ADPCM : psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_MS_ADPCM) ; *blockalign = wav_fmt->msadpcm.blockalign ; *framesperblock = wav_fmt->msadpcm.samplesperblock ; break ; case WAVE_FORMAT_IMA_ADPCM : psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_IMA_ADPCM) ; *blockalign = wav_fmt->ima.blockalign ; *framesperblock = wav_fmt->ima.samplesperblock ; break ; case WAVE_FORMAT_GSM610 : psf->sf.format = (SF_FORMAT_W64 | SF_FORMAT_GSM610) ; break ; case WAVE_FORMAT_IEEE_FLOAT : psf->sf.format = SF_FORMAT_W64 ; psf->sf.format |= (psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT ; break ; default : return SFE_UNIMPLEMENTED ; } ; return 0 ; } /* w64_read_header */ static int w64_write_header (SF_PRIVATE *psf, int calc_length) { sf_count_t fmt_size, current ; size_t fmt_pad = 0 ; int subformat, add_fact_chunk = SF_FALSE ; current = psf_ftell (psf) ; if (calc_length) { psf->filelength = psf_get_filelen (psf) ; psf->datalength = psf->filelength - psf->dataoffset ; if (psf->dataend) psf->datalength -= psf->filelength - psf->dataend ; if (psf->bytewidth) psf->sf.frames = psf->datalength / (psf->bytewidth * psf->sf.channels) ; } ; /* Reset the current header length to zero. */ psf->header [0] = 0 ; psf->headindex = 0 ; psf_fseek (psf, 0, SEEK_SET) ; /* riff marker, length, wave and 'fmt ' markers. */ psf_binheader_writef (psf, "eh8hh", riff_MARKER16, psf->filelength, wave_MARKER16, fmt_MARKER16) ; subformat = SF_CODEC (psf->sf.format) ; switch (subformat) { case SF_FORMAT_PCM_U8 : case SF_FORMAT_PCM_16 : case SF_FORMAT_PCM_24 : case SF_FORMAT_PCM_32 : fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; fmt_size += fmt_pad ; /* fmt : format, channels, samplerate */ psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_PCM, psf->sf.channels, psf->sf.samplerate) ; /* fmt : bytespersec */ psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; /* fmt : blockalign, bitwidth */ psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ; break ; case SF_FORMAT_FLOAT : case SF_FORMAT_DOUBLE : fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; fmt_size += fmt_pad ; /* fmt : format, channels, samplerate */ psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_IEEE_FLOAT, psf->sf.channels, psf->sf.samplerate) ; /* fmt : bytespersec */ psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; /* fmt : blockalign, bitwidth */ psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, psf->bytewidth * 8) ; add_fact_chunk = SF_TRUE ; break ; case SF_FORMAT_ULAW : fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; fmt_size += fmt_pad ; /* fmt : format, channels, samplerate */ psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_MULAW, psf->sf.channels, psf->sf.samplerate) ; /* fmt : bytespersec */ psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; /* fmt : blockalign, bitwidth */ psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, 8) ; add_fact_chunk = SF_TRUE ; break ; case SF_FORMAT_ALAW : fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 ; fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; fmt_size += fmt_pad ; /* fmt : format, channels, samplerate */ psf_binheader_writef (psf, "e8224", fmt_size, WAVE_FORMAT_ALAW, psf->sf.channels, psf->sf.samplerate) ; /* fmt : bytespersec */ psf_binheader_writef (psf, "e4", psf->sf.samplerate * psf->bytewidth * psf->sf.channels) ; /* fmt : blockalign, bitwidth */ psf_binheader_writef (psf, "e22", psf->bytewidth * psf->sf.channels, 8) ; add_fact_chunk = SF_TRUE ; break ; /* Lite remove start */ case SF_FORMAT_IMA_ADPCM : { int blockalign, framesperblock, bytespersec ; blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; framesperblock = 2 * (blockalign - 4 * psf->sf.channels) / psf->sf.channels + 1 ; bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ; /* fmt chunk. */ fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ; fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; fmt_size += fmt_pad ; /* fmt : size, WAV format type, channels. */ psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_IMA_ADPCM, psf->sf.channels) ; /* fmt : samplerate, bytespersec. */ psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ; /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ psf_binheader_writef (psf, "e2222", blockalign, 4, 2, framesperblock) ; } ; add_fact_chunk = SF_TRUE ; break ; case SF_FORMAT_MS_ADPCM : { int blockalign, framesperblock, bytespersec, extrabytes ; blockalign = wav_w64_srate2blocksize (psf->sf.samplerate * psf->sf.channels) ; framesperblock = 2 + 2 * (blockalign - 7 * psf->sf.channels) / psf->sf.channels ; bytespersec = (psf->sf.samplerate * blockalign) / framesperblock ; /* fmt chunk. */ extrabytes = 2 + 2 + MSADPCM_ADAPT_COEFF_COUNT * (2 + 2) ; fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + extrabytes ; fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; fmt_size += fmt_pad ; /* fmt : size, W64 format type, channels. */ psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_MS_ADPCM, psf->sf.channels) ; /* fmt : samplerate, bytespersec. */ psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ; /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ psf_binheader_writef (psf, "e22222", blockalign, 4, extrabytes, framesperblock, 7) ; msadpcm_write_adapt_coeffs (psf) ; } ; add_fact_chunk = SF_TRUE ; break ; /* Lite remove end */ case SF_FORMAT_GSM610 : { int bytespersec ; bytespersec = (psf->sf.samplerate * WAV_W64_GSM610_BLOCKSIZE) / WAV_W64_GSM610_SAMPLES ; /* fmt chunk. */ fmt_size = 24 + 2 + 2 + 4 + 4 + 2 + 2 + 2 + 2 ; fmt_pad = (size_t) (8 - (fmt_size & 0x7)) ; fmt_size += fmt_pad ; /* fmt : size, WAV format type, channels. */ psf_binheader_writef (psf, "e822", fmt_size, WAVE_FORMAT_GSM610, psf->sf.channels) ; /* fmt : samplerate, bytespersec. */ psf_binheader_writef (psf, "e44", psf->sf.samplerate, bytespersec) ; /* fmt : blockalign, bitwidth, extrabytes, framesperblock. */ psf_binheader_writef (psf, "e2222", WAV_W64_GSM610_BLOCKSIZE, 0, 2, WAV_W64_GSM610_SAMPLES) ; } ; add_fact_chunk = SF_TRUE ; break ; default : return SFE_UNIMPLEMENTED ; } ; /* Pad to 8 bytes with zeros. */ if (fmt_pad > 0) psf_binheader_writef (psf, "z", fmt_pad) ; if (add_fact_chunk) psf_binheader_writef (psf, "eh88", fact_MARKER16, (sf_count_t) (16 + 8 + 8), psf->sf.frames) ; psf_binheader_writef (psf, "eh8", data_MARKER16, psf->datalength + 24) ; psf_fwrite (psf->header, psf->headindex, 1, psf) ; if (psf->error) return psf->error ; psf->dataoffset = psf->headindex ; if (current > 0) psf_fseek (psf, current, SEEK_SET) ; return psf->error ; } /* w64_write_header */ static int w64_close (SF_PRIVATE *psf) { if (psf->file.mode == SFM_WRITE || psf->file.mode == SFM_RDWR) w64_write_header (psf, SF_TRUE) ; return 0 ; } /* w64_close */