summaryrefslogtreecommitdiff
path: root/tests/dlna-encoding.c
blob: 95e4f3f7c23f27a36836679170665f05ca1d91f6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
/* Example application for using GstProfile and encodebin
 * Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
 *
 * 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.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <glib.h>
#include <gst/gst.h>
#include <gst/pbutils/pbutils.h>
#include <gst/pbutils/encoding-profile.h>
#include <libgupnp-dlna/gupnp-dlna-discoverer.h>

static gboolean silent = FALSE;

static void
pad_added_cb (GstElement * uridecodebin, GstPad * pad, GstElement * encodebin)
{
  GstPad *sinkpad;

  sinkpad = gst_element_get_compatible_pad (encodebin, pad, NULL);

  if (sinkpad == NULL) {
    GstCaps *caps;

    /* Ask encodebin for a compatible pad */
    caps = gst_pad_get_caps (pad);
    g_signal_emit_by_name (encodebin, "request-pad", caps, &sinkpad);
    if (caps)
      gst_caps_unref (caps);
  }
  if (sinkpad == NULL) {
    g_print ("Couldn't get an encoding channel for pad %s:%s\n",
        GST_DEBUG_PAD_NAME (pad));
    return;
  }

  if (G_UNLIKELY (gst_pad_link (pad, sinkpad) != GST_PAD_LINK_OK)) {
    g_print ("Couldn't link pads\n");
  }

  return;
}

static gboolean
autoplug_continue_cb (GstElement * uridecodebin, GstPad * somepad,
    GstCaps * caps, GstElement * encodebin)
{
  GstPad *sinkpad;

  g_signal_emit_by_name (encodebin, "request-pad", caps, &sinkpad);

  if (sinkpad == NULL)
    return TRUE;

  return FALSE;
}

static void
bus_message_cb (GstBus * bus, GstMessage * message, GMainLoop * mainloop)
{
  switch (GST_MESSAGE_TYPE (message)) {
    case GST_MESSAGE_ERROR:
      g_print ("ERROR\n");
      g_main_loop_quit (mainloop);
      break;
    case GST_MESSAGE_EOS:
      g_print ("Done\n");
      g_main_loop_quit (mainloop);
      break;
    default:
      break;
  }
}

static void
transcode_file (gchar * uri, gchar * outputuri, GstEncodingProfile * prof)
{
  GstElement *pipeline;
  GstElement *src;
  GstElement *ebin;
  GstElement *sink;
  GstBus *bus;
  GstCaps *profilecaps, *rescaps;
  GMainLoop *mainloop;

  g_print (" Input URI  : %s\n", uri);
  g_print (" Output URI : %s\n", outputuri);

  sink = gst_element_make_from_uri (GST_URI_SINK, outputuri, "sink");
  if (G_UNLIKELY (sink == NULL)) {
    g_print ("Can't create output sink, most likely invalid output URI !\n");
    return;
  }

  src = gst_element_factory_make ("uridecodebin", NULL);
  if (G_UNLIKELY (src == NULL)) {
    g_print ("Can't create uridecodebin for input URI, aborting!\n");
    return;
  }

  /* Figure out the streams that can be passed as-is to encodebin */
  g_object_get (src, "caps", &rescaps, NULL);
  rescaps = gst_caps_copy (rescaps);
  profilecaps = gst_encoding_profile_get_input_caps (prof);
  gst_caps_append (rescaps, profilecaps);

  /* Set properties */
  g_object_set (src, "uri", uri, "caps", rescaps, NULL);

  ebin = gst_element_factory_make ("encodebin", NULL);
  g_object_set (ebin, "profile", prof, NULL);

  g_signal_connect (src, "autoplug-continue", G_CALLBACK (autoplug_continue_cb),
      ebin);
  g_signal_connect (src, "pad-added", G_CALLBACK (pad_added_cb), ebin);

  pipeline = gst_pipeline_new ("encoding-pipeline");

  gst_bin_add_many (GST_BIN (pipeline), src, ebin, sink, NULL);

  gst_element_link (ebin, sink);

  mainloop = g_main_loop_new (NULL, FALSE);

  bus = gst_pipeline_get_bus ((GstPipeline *) pipeline);
  gst_bus_add_signal_watch (bus);
  g_signal_connect (bus, "message", G_CALLBACK (bus_message_cb), mainloop);

  if (gst_element_set_state (pipeline,
          GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE) {
    g_print ("Failed to start the encoding\n");
    return;
  }

  g_main_loop_run (mainloop);

  gst_element_set_state (pipeline, GST_STATE_NULL);
  gst_object_unref (pipeline);
}

static gchar *
ensure_uri (gchar * location)
{
  gchar *res;
  gchar *path;

  if (gst_uri_is_valid (location))
    return g_strdup (location);

  if (!g_path_is_absolute (location)) {
    gchar *cur_dir;
    cur_dir = g_get_current_dir ();
    path = g_build_filename (cur_dir, location, NULL);
    g_free (cur_dir);
  } else
    path = g_strdup (location);

  res = g_filename_to_uri (path, NULL, NULL);
  g_free (path);

  return res;
}

int
main (int argc, char **argv)
{
  GError *err = NULL;
  gchar *outputuri = NULL;
  gchar *format = NULL;
  GOptionEntry options[] = {
    {"silent", 's', 0, G_OPTION_ARG_NONE, &silent,
        "Don't output the information structure", NULL},
    {"outputuri", 'o', 0, G_OPTION_ARG_STRING, &outputuri,
        "URI to encode to", "URI (<protocol>://<location>)"},
    {"format", 'f', 0, G_OPTION_ARG_STRING, &format,
        "DLNA profile to use", NULL},
    {NULL}
  };
  GOptionContext *ctx;
  GUPnPDLNADiscoverer *discoverer;
  GUPnPDLNAProfile *profile;
  gchar *inputuri;

  if (!g_thread_supported ())
    g_thread_init (NULL);

  ctx = g_option_context_new ("- encode URIs with GstProfile and encodebin");
  g_option_context_add_main_entries (ctx, options, NULL);
  g_option_context_add_group (ctx, gst_init_get_option_group ());

  if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
    g_print ("Error initializing: %s\n", err->message);
    exit (1);
  }

  g_option_context_free (ctx);

  if (outputuri == NULL || argc != 2) {
    g_print ("usage: %s <inputuri> -o <outputuri> --format <profile>\n",
        argv[0]);
    exit (-1);
  }

  gst_init(&argc, &argv);

  /* Create the profile */
  discoverer = gupnp_dlna_discoverer_new ((GstClockTime) GST_SECOND,
                                          FALSE,
                                          FALSE);
  profile = gupnp_dlna_discoverer_get_profile (discoverer, format);
  if (G_UNLIKELY (profile == NULL)) {
    g_print ("Encoding arguments are not valid !\n");
    return 1;
  }

  /* Fixup outputuri to be a URI */
  inputuri = ensure_uri (argv[1]);
  outputuri = ensure_uri (outputuri);

  /* Trancode file */
  transcode_file (inputuri,
                  outputuri,
                  gupnp_dlna_profile_get_encoding_profile (profile));

  /* cleanup */
  g_object_unref (profile);
  g_object_unref (discoverer);

  return 0;
}