gst-discoverer.c 15.5 KB
Newer Older
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
/* GStreamer
 * 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 Library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library 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>

static gboolean async = FALSE;
static gboolean silent = FALSE;
static gboolean verbose = FALSE;

typedef struct
{
  GstDiscoverer *dc;
  int argc;
  char **argv;
} PrivStruct;

40 41 42 43 44 45 46 47 48 49 50 51 52
static void
my_g_string_append_printf (GString * str, int depth, const gchar * format, ...)
{
  va_list args;

  while (depth-- > 0) {
    g_string_append (str, "  ");
  }

  va_start (args, format);
  g_string_append_vprintf (str, format, args);
  va_end (args);
}
53 54 55 56 57

static gchar *
gst_stream_audio_information_to_string (GstDiscovererStreamInfo * info,
    gint depth)
{
58
  GstDiscovererAudioInfo *audio_info;
59 60
  GString *s;
  gchar *tmp;
61
  const gchar *ctmp;
62 63 64 65 66 67 68 69
  int len = 400;
  const GstTagList *tags;
  GstCaps *caps;

  g_return_val_if_fail (info != NULL, NULL);

  s = g_string_sized_new (len);

70
  my_g_string_append_printf (s, depth, "Codec:\n");
71 72 73
  caps = gst_discoverer_stream_info_get_caps (info);
  tmp = gst_caps_to_string (caps);
  gst_caps_unref (caps);
74
  my_g_string_append_printf (s, depth, "  %s\n", tmp);
75 76
  g_free (tmp);

77
  my_g_string_append_printf (s, depth, "Additional info:\n");
78 79
  if (gst_discoverer_stream_info_get_misc (info)) {
    tmp = gst_structure_to_string (gst_discoverer_stream_info_get_misc (info));
80
    my_g_string_append_printf (s, depth, "  %s\n", tmp);
81 82
    g_free (tmp);
  } else {
83
    my_g_string_append_printf (s, depth, "  None\n");
84 85
  }

86
  audio_info = (GstDiscovererAudioInfo *) info;
87
  ctmp = gst_discoverer_audio_info_get_language (audio_info);
88 89 90
  my_g_string_append_printf (s, depth, "Language: %s\n",
      ctmp ? ctmp : "<unknown>");
  my_g_string_append_printf (s, depth, "Channels: %u\n",
91
      gst_discoverer_audio_info_get_channels (audio_info));
92
  my_g_string_append_printf (s, depth, "Sample rate: %u\n",
93
      gst_discoverer_audio_info_get_sample_rate (audio_info));
94
  my_g_string_append_printf (s, depth, "Depth: %u\n",
95
      gst_discoverer_audio_info_get_depth (audio_info));
96

97
  my_g_string_append_printf (s, depth, "Bitrate: %u\n",
98
      gst_discoverer_audio_info_get_bitrate (audio_info));
99
  my_g_string_append_printf (s, depth, "Max bitrate: %u\n",
100
      gst_discoverer_audio_info_get_max_bitrate (audio_info));
101

102
  my_g_string_append_printf (s, depth, "Tags:\n");
103 104 105
  tags = gst_discoverer_stream_info_get_tags (info);
  if (tags) {
    tmp = gst_structure_to_string ((GstStructure *) tags);
106
    my_g_string_append_printf (s, depth, "  %s\n", tmp);
107 108
    g_free (tmp);
  } else {
109
    my_g_string_append_printf (s, depth, "  None\n");
110 111
  }
  if (verbose)
112
    my_g_string_append_printf (s, depth, "\n");
113 114 115 116 117 118 119 120

  return g_string_free (s, FALSE);
}

static gchar *
gst_stream_video_information_to_string (GstDiscovererStreamInfo * info,
    gint depth)
{
121
  GstDiscovererVideoInfo *video_info;
122 123 124 125 126 127 128 129 130 131 132
  GString *s;
  gchar *tmp;
  int len = 500;
  const GstStructure *misc;
  const GstTagList *tags;
  GstCaps *caps;

  g_return_val_if_fail (info != NULL, NULL);

  s = g_string_sized_new (len);

133
  my_g_string_append_printf (s, depth, "Codec:\n");
134 135 136
  caps = gst_discoverer_stream_info_get_caps (info);
  tmp = gst_caps_to_string (caps);
  gst_caps_unref (caps);
137
  my_g_string_append_printf (s, depth, "  %s\n", tmp);
138 139
  g_free (tmp);

140
  my_g_string_append_printf (s, depth, "Additional info:\n");
141 142 143
  misc = gst_discoverer_stream_info_get_misc (info);
  if (misc) {
    tmp = gst_structure_to_string (misc);
144
    my_g_string_append_printf (s, depth, "  %s\n", tmp);
145 146
    g_free (tmp);
  } else {
147
    my_g_string_append_printf (s, depth, "  None\n");
148 149
  }

150
  video_info = (GstDiscovererVideoInfo *) info;
151
  my_g_string_append_printf (s, depth, "Width: %u\n",
152
      gst_discoverer_video_info_get_width (video_info));
153
  my_g_string_append_printf (s, depth, "Height: %u\n",
154
      gst_discoverer_video_info_get_height (video_info));
155
  my_g_string_append_printf (s, depth, "Depth: %u\n",
156
      gst_discoverer_video_info_get_depth (video_info));
157

158
  my_g_string_append_printf (s, depth, "Frame rate: %u/%u\n",
159 160
      gst_discoverer_video_info_get_framerate_num (video_info),
      gst_discoverer_video_info_get_framerate_denom (video_info));
161

162
  my_g_string_append_printf (s, depth, "Pixel aspect ratio: %u/%u\n",
163 164
      gst_discoverer_video_info_get_par_num (video_info),
      gst_discoverer_video_info_get_par_denom (video_info));
165

166
  my_g_string_append_printf (s, depth, "Interlaced: %s\n",
167
      gst_discoverer_video_info_is_interlaced (video_info) ? "true" : "false");
168

169
  my_g_string_append_printf (s, depth, "Bitrate: %u\n",
170
      gst_discoverer_video_info_get_bitrate (video_info));
171
  my_g_string_append_printf (s, depth, "Max bitrate: %u\n",
172
      gst_discoverer_video_info_get_max_bitrate (video_info));
173

174
  my_g_string_append_printf (s, depth, "Tags:\n");
175 176 177
  tags = gst_discoverer_stream_info_get_tags (info);
  if (tags) {
    tmp = gst_structure_to_string ((GstStructure *) tags);
178
    my_g_string_append_printf (s, depth, "  %s\n", tmp);
179 180
    g_free (tmp);
  } else {
181
    my_g_string_append_printf (s, depth, "  None\n");
182 183
  }
  if (verbose)
184
    my_g_string_append_printf (s, depth, "\n");
185 186 187 188

  return g_string_free (s, FALSE);
}

189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204
static gchar *
gst_stream_subtitle_information_to_string (GstDiscovererStreamInfo * info,
    gint depth)
{
  GstDiscovererSubtitleInfo *subtitle_info;
  GString *s;
  gchar *tmp;
  const gchar *ctmp;
  int len = 400;
  const GstTagList *tags;
  GstCaps *caps;

  g_return_val_if_fail (info != NULL, NULL);

  s = g_string_sized_new (len);

205
  my_g_string_append_printf (s, depth, "Codec:\n");
206 207 208
  caps = gst_discoverer_stream_info_get_caps (info);
  tmp = gst_caps_to_string (caps);
  gst_caps_unref (caps);
209
  my_g_string_append_printf (s, depth, "  %s\n", tmp);
210 211
  g_free (tmp);

212
  my_g_string_append_printf (s, depth, "Additional info:\n");
213 214
  if (gst_discoverer_stream_info_get_misc (info)) {
    tmp = gst_structure_to_string (gst_discoverer_stream_info_get_misc (info));
215
    my_g_string_append_printf (s, depth, "  %s\n", tmp);
216 217
    g_free (tmp);
  } else {
218
    my_g_string_append_printf (s, depth, "  None\n");
219 220 221 222
  }

  subtitle_info = (GstDiscovererSubtitleInfo *) info;
  ctmp = gst_discoverer_subtitle_info_get_language (subtitle_info);
223 224
  my_g_string_append_printf (s, depth, "Language: %s\n",
      ctmp ? ctmp : "<unknown>");
225

226
  my_g_string_append_printf (s, depth, "Tags:\n");
227 228 229
  tags = gst_discoverer_stream_info_get_tags (info);
  if (tags) {
    tmp = gst_structure_to_string ((GstStructure *) tags);
230
    my_g_string_append_printf (s, depth, "  %s\n", tmp);
231 232
    g_free (tmp);
  } else {
233
    my_g_string_append_printf (s, depth, "  None\n");
234 235
  }
  if (verbose)
236
    my_g_string_append_printf (s, depth, "\n");
237 238 239 240

  return g_string_free (s, FALSE);
}

241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273
static void
print_stream_info (GstDiscovererStreamInfo * info, void *depth)
{
  gchar *desc = NULL;
  GstCaps *caps;

  caps = gst_discoverer_stream_info_get_caps (info);

  if (caps) {
    if (gst_caps_is_fixed (caps) && !verbose)
      desc = gst_pb_utils_get_codec_description (caps);
    else
      desc = gst_caps_to_string (caps);
    gst_caps_unref (caps);
  }

  g_print ("%*s%s: %s\n", 2 * GPOINTER_TO_INT (depth), " ",
      gst_discoverer_stream_info_get_stream_type_nick (info), desc);

  if (desc) {
    g_free (desc);
    desc = NULL;
  }

  if (verbose) {
    if (GST_IS_DISCOVERER_AUDIO_INFO (info))
      desc =
          gst_stream_audio_information_to_string (info,
          GPOINTER_TO_INT (depth) + 1);
    else if (GST_IS_DISCOVERER_VIDEO_INFO (info))
      desc =
          gst_stream_video_information_to_string (info,
          GPOINTER_TO_INT (depth) + 1);
274 275 276 277
    else if (GST_IS_DISCOVERER_SUBTITLE_INFO (info))
      desc =
          gst_stream_subtitle_information_to_string (info,
          GPOINTER_TO_INT (depth) + 1);
Stefan Kost's avatar
Stefan Kost committed
278 279 280 281
    if (desc) {
      g_print ("%s", desc);
      g_free (desc);
    }
282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301
  }
}

static void
print_topology (GstDiscovererStreamInfo * info, gint depth)
{
  GstDiscovererStreamInfo *next;

  if (!info)
    return;

  print_stream_info (info, GINT_TO_POINTER (depth));

  next = gst_discoverer_stream_info_get_next (info);
  if (next) {
    print_topology (next, depth + 1);
    gst_discoverer_stream_info_unref (next);
  } else if (GST_IS_DISCOVERER_CONTAINER_INFO (info)) {
    GList *tmp, *streams;

302 303 304
    streams =
        gst_discoverer_container_info_get_streams (GST_DISCOVERER_CONTAINER_INFO
        (info));
305 306 307 308 309 310 311 312
    for (tmp = streams; tmp; tmp = tmp->next) {
      GstDiscovererStreamInfo *tmpinf = (GstDiscovererStreamInfo *) tmp->data;
      print_topology (tmpinf, depth + 1);
    }
    gst_discoverer_stream_info_list_free (streams);
  }
}

313 314 315 316 317 318
static gboolean
print_tag_each (GQuark field_id, const GValue * value, gpointer user_data)
{
  gint tab = GPOINTER_TO_INT (user_data);
  gchar *ser;

319 320 321 322 323 324 325
  if (G_VALUE_HOLDS_STRING (value))
    ser = g_value_dup_string (value);
  else if (GST_VALUE_HOLDS_BUFFER (value)) {
    GstBuffer *buf = gst_value_get_buffer (value);
    ser = g_strdup_printf ("<GstBuffer [%d bytes]>", GST_BUFFER_SIZE (buf));
  } else
    ser = gst_value_serialize (value);
326 327 328 329 330 331 332 333

  g_print ("%*s%s: %s\n", tab, " ",
      gst_tag_get_nick (g_quark_to_string (field_id)), ser);
  g_free (ser);

  return TRUE;
}

334
static void
Stefan Kost's avatar
Stefan Kost committed
335
print_properties (GstDiscovererInfo * info, gint tab)
336
{
337 338
  const GstTagList *tags;

Stefan Kost's avatar
Stefan Kost committed
339
  g_print ("%*sDuration: %" GST_TIME_FORMAT "\n", tab + 1, " ",
340
      GST_TIME_ARGS (gst_discoverer_info_get_duration (info)));
Stefan Kost's avatar
Stefan Kost committed
341 342
  g_print ("%*sSeekable: %s\n", tab + 1, " ",
      (gst_discoverer_info_get_seekable (info) ? "yes" : "no"));
343 344 345 346 347
  if ((tags = gst_discoverer_info_get_tags (info))) {
    g_print ("%*sTags: \n", tab + 1, " ");
    gst_structure_foreach ((const GstStructure *) tags, print_tag_each,
        GINT_TO_POINTER (tab + 5));
  }
348 349 350 351 352 353
}

static void
print_info (GstDiscovererInfo * info, GError * err)
{
  GstDiscovererResult result = gst_discoverer_info_get_result (info);
354
  GstDiscovererStreamInfo *sinfo;
355 356

  g_print ("Done discovering %s\n", gst_discoverer_info_get_uri (info));
357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392
  switch (result) {
    case GST_DISCOVERER_OK:
    {
      break;
    }
    case GST_DISCOVERER_URI_INVALID:
    {
      g_print ("URI is not valid\n");
      break;
    }
    case GST_DISCOVERER_ERROR:
    {
      g_print ("An error was encountered while discovering the file\n");
      g_print (" %s\n", err->message);
      break;
    }
    case GST_DISCOVERER_TIMEOUT:
    {
      g_print ("Analyzing URI timed out\n");
      break;
    }
    case GST_DISCOVERER_BUSY:
    {
      g_print ("Discoverer was busy\n");
      break;
    }
    case GST_DISCOVERER_MISSING_PLUGINS:
    {
      g_print ("Missing plugins\n");
      if (verbose) {
        gchar *tmp =
            gst_structure_to_string (gst_discoverer_info_get_misc (info));
        g_print (" (%s)\n", tmp);
        g_free (tmp);
      }
      break;
393 394 395
    }
  }

396 397 398
  if ((sinfo = gst_discoverer_info_get_stream_info (info))) {
    g_print ("\nTopology:\n");
    print_topology (sinfo, 1);
Stefan Kost's avatar
Stefan Kost committed
399 400
    g_print ("\nProperties:\n");
    print_properties (info, 1);
401 402 403
    gst_discoverer_stream_info_unref (sinfo);
  }

404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486
  g_print ("\n");
}

static void
process_file (GstDiscoverer * dc, const gchar * filename)
{
  GError *err = NULL;
  GDir *dir;
  gchar *uri, *path;
  GstDiscovererInfo *info;
  GstStructure *st = NULL;

  if (!gst_uri_is_valid (filename)) {
    /* Recurse into directories */
    if ((dir = g_dir_open (filename, 0, NULL))) {
      const gchar *entry;

      while ((entry = g_dir_read_name (dir))) {
        gchar *path;
        path = g_strconcat (filename, G_DIR_SEPARATOR_S, entry, NULL);
        process_file (dc, path);
        g_free (path);
      }

      g_dir_close (dir);
      return;
    }

    if (!g_path_is_absolute (filename)) {
      gchar *cur_dir;

      cur_dir = g_get_current_dir ();
      path = g_build_filename (cur_dir, filename, NULL);
      g_free (cur_dir);
    } else {
      path = g_strdup (filename);
    }

    uri = g_filename_to_uri (path, NULL, &err);
    g_free (path);
    path = NULL;

    if (err) {
      g_warning ("Couldn't convert filename to URI: %s\n", err->message);
      g_error_free (err);
      return;
    }
  } else {
    uri = g_strdup (filename);
  }

  if (async == FALSE) {
    g_print ("Analyzing %s\n", uri);
    info = gst_discoverer_discover_uri (dc, uri, &err);
    print_info (info, err);
    gst_discoverer_info_unref (info);
    if (st)
      gst_structure_free (st);
  } else {
    gst_discoverer_discover_uri_async (dc, uri);
  }

  g_free (uri);
}

static void
_new_discovered_uri (GstDiscoverer * dc, GstDiscovererInfo * info, GError * err)
{
  print_info (info, err);
}

static gboolean
_run_async (PrivStruct * ps)
{
  gint i;

  for (i = 1; i < ps->argc; i++)
    process_file (ps->dc, ps->argv[i]);

  return FALSE;
}

static void
487
_discoverer_finished (GstDiscoverer * dc, GMainLoop * ml)
488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512
{
  g_main_loop_quit (ml);
}

int
main (int argc, char **argv)
{
  GError *err = NULL;
  GstDiscoverer *dc;
  gint timeout = 10;
  GOptionEntry options[] = {
    {"async", 'a', 0, G_OPTION_ARG_NONE, &async,
        "Run asynchronously", NULL},
    {"silent", 's', 0, G_OPTION_ARG_NONE, &silent,
        "Don't output the information structure", NULL},
    {"timeout", 't', 0, G_OPTION_ARG_INT, &timeout,
        "Specify timeout (in seconds, default 10)", "T"},
    /* {"elem", 'e', 0, G_OPTION_ARG_NONE, &elem_seek, */
    /*     "Seek on elements instead of pads", NULL}, */
    {"verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose,
        "Verbose properties", NULL},
    {NULL}
  };
  GOptionContext *ctx;

513
#if !GLIB_CHECK_VERSION (2, 31, 0)
514 515
  if (!g_thread_supported ())
    g_thread_init (NULL);
516
#endif
517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558

  ctx =
      g_option_context_new
      ("- discover files synchronously with GstDiscoverer");
  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 (argc < 2) {
    g_print ("usage: %s <uris>\n", argv[0]);
    exit (-1);
  }

  dc = gst_discoverer_new (timeout * GST_SECOND, &err);
  if (G_UNLIKELY (dc == NULL)) {
    g_print ("Error initializing: %s\n", err->message);
    exit (1);
  }

  if (async == FALSE) {
    gint i;
    for (i = 1; i < argc; i++)
      process_file (dc, argv[i]);
  } else {
    PrivStruct *ps = g_new0 (PrivStruct, 1);
    GMainLoop *ml = g_main_loop_new (NULL, FALSE);

    ps->dc = dc;
    ps->argc = argc;
    ps->argv = argv;

    /* adding uris will be started when the mainloop runs */
    g_idle_add ((GSourceFunc) _run_async, ps);

    /* connect signals */
    g_signal_connect (dc, "discovered", G_CALLBACK (_new_discovered_uri), NULL);
559
    g_signal_connect (dc, "finished", G_CALLBACK (_discoverer_finished), ml);
560 561 562 563 564 565 566

    gst_discoverer_start (dc);
    /* run mainloop */
    g_main_loop_run (ml);

    gst_discoverer_stop (dc);
    g_free (ps);
567
    g_main_loop_unref (ml);
568 569 570 571 572
  }
  g_object_unref (dc);

  return 0;
}