gst-discoverer.c 15.6 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
/* 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
Tim-Philipp Müller's avatar
Tim-Philipp Müller committed
16 17
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA 02110-1301, USA.
18 19 20 21 22 23 24 25 26 27 28 29
 */

#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;
30
static gboolean show_toc = FALSE;
31 32 33 34 35 36 37 38 39
static gboolean verbose = FALSE;

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

40 41
static void
my_g_string_append_printf (GString * str, int depth, const gchar * format, ...)
42
G_GNUC_PRINTF (3, 4)
43 44 45 46 47 48 49 50 51 52 53
{
  va_list args;

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

  va_start (args, format);
  g_string_append_vprintf (str, format, args);
  va_end (args);
}
54

55 56
static void
gst_stream_information_to_string (GstDiscovererStreamInfo * info, GString * s,
57 58 59 60
    gint depth)
{
  gchar *tmp;
  GstCaps *caps;
61
  const GstStructure *misc;
62

63
  my_g_string_append_printf (s, depth, "Codec:\n");
64 65 66
  caps = gst_discoverer_stream_info_get_caps (info);
  tmp = gst_caps_to_string (caps);
  gst_caps_unref (caps);
67
  my_g_string_append_printf (s, depth, "  %s\n", tmp);
68 69
  g_free (tmp);

70
  my_g_string_append_printf (s, depth, "Additional info:\n");
71 72
  if ((misc = gst_discoverer_stream_info_get_misc (info))) {
    tmp = gst_structure_to_string (misc);
73
    my_g_string_append_printf (s, depth, "  %s\n", tmp);
74 75
    g_free (tmp);
  } else {
76
    my_g_string_append_printf (s, depth, "  None\n");
77 78
  }

79 80
  my_g_string_append_printf (s, depth, "Stream ID: %s\n",
      gst_discoverer_stream_info_get_stream_id (info));
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98
}

static gchar *
gst_stream_audio_information_to_string (GstDiscovererStreamInfo * info,
    gint depth)
{
  GstDiscovererAudioInfo *audio_info;
  GString *s;
  gchar *tmp;
  const gchar *ctmp;
  int len = 400;
  const GstTagList *tags;

  g_return_val_if_fail (info != NULL, NULL);

  s = g_string_sized_new (len);

  gst_stream_information_to_string (info, s, depth);
99

100
  audio_info = (GstDiscovererAudioInfo *) info;
101
  ctmp = gst_discoverer_audio_info_get_language (audio_info);
102 103 104
  my_g_string_append_printf (s, depth, "Language: %s\n",
      ctmp ? ctmp : "<unknown>");
  my_g_string_append_printf (s, depth, "Channels: %u\n",
105
      gst_discoverer_audio_info_get_channels (audio_info));
106
  my_g_string_append_printf (s, depth, "Sample rate: %u\n",
107
      gst_discoverer_audio_info_get_sample_rate (audio_info));
108
  my_g_string_append_printf (s, depth, "Depth: %u\n",
109
      gst_discoverer_audio_info_get_depth (audio_info));
110

111
  my_g_string_append_printf (s, depth, "Bitrate: %u\n",
112
      gst_discoverer_audio_info_get_bitrate (audio_info));
113
  my_g_string_append_printf (s, depth, "Max bitrate: %u\n",
114
      gst_discoverer_audio_info_get_max_bitrate (audio_info));
115

116
  my_g_string_append_printf (s, depth, "Tags:\n");
117 118
  tags = gst_discoverer_stream_info_get_tags (info);
  if (tags) {
119
    tmp = gst_tag_list_to_string (tags);
120
    my_g_string_append_printf (s, depth, "  %s\n", tmp);
121 122
    g_free (tmp);
  } else {
123
    my_g_string_append_printf (s, depth, "  None\n");
124 125
  }
  if (verbose)
126
    my_g_string_append_printf (s, depth, "\n");
127 128 129 130 131 132 133 134

  return g_string_free (s, FALSE);
}

static gchar *
gst_stream_video_information_to_string (GstDiscovererStreamInfo * info,
    gint depth)
{
135
  GstDiscovererVideoInfo *video_info;
136 137 138 139 140 141 142 143 144
  GString *s;
  gchar *tmp;
  int len = 500;
  const GstTagList *tags;

  g_return_val_if_fail (info != NULL, NULL);

  s = g_string_sized_new (len);

145
  gst_stream_information_to_string (info, s, depth);
146

147
  video_info = (GstDiscovererVideoInfo *) info;
148
  my_g_string_append_printf (s, depth, "Width: %u\n",
149
      gst_discoverer_video_info_get_width (video_info));
150
  my_g_string_append_printf (s, depth, "Height: %u\n",
151
      gst_discoverer_video_info_get_height (video_info));
152
  my_g_string_append_printf (s, depth, "Depth: %u\n",
153
      gst_discoverer_video_info_get_depth (video_info));
154

155
  my_g_string_append_printf (s, depth, "Frame rate: %u/%u\n",
156 157
      gst_discoverer_video_info_get_framerate_num (video_info),
      gst_discoverer_video_info_get_framerate_denom (video_info));
158

159
  my_g_string_append_printf (s, depth, "Pixel aspect ratio: %u/%u\n",
160 161
      gst_discoverer_video_info_get_par_num (video_info),
      gst_discoverer_video_info_get_par_denom (video_info));
162

163
  my_g_string_append_printf (s, depth, "Interlaced: %s\n",
164
      gst_discoverer_video_info_is_interlaced (video_info) ? "true" : "false");
165

166
  my_g_string_append_printf (s, depth, "Bitrate: %u\n",
167
      gst_discoverer_video_info_get_bitrate (video_info));
168
  my_g_string_append_printf (s, depth, "Max bitrate: %u\n",
169
      gst_discoverer_video_info_get_max_bitrate (video_info));
170

171
  my_g_string_append_printf (s, depth, "Tags:\n");
172 173
  tags = gst_discoverer_stream_info_get_tags (info);
  if (tags) {
174
    tmp = gst_tag_list_to_string (tags);
175
    my_g_string_append_printf (s, depth, "  %s\n", tmp);
176 177
    g_free (tmp);
  } else {
178
    my_g_string_append_printf (s, depth, "  None\n");
179 180
  }
  if (verbose)
181
    my_g_string_append_printf (s, depth, "\n");
182 183 184 185

  return g_string_free (s, FALSE);
}

186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
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;

  g_return_val_if_fail (info != NULL, NULL);

  s = g_string_sized_new (len);

201
  gst_stream_information_to_string (info, s, depth);
202

203 204
  subtitle_info = (GstDiscovererSubtitleInfo *) info;
  ctmp = gst_discoverer_subtitle_info_get_language (subtitle_info);
205 206
  my_g_string_append_printf (s, depth, "Language: %s\n",
      ctmp ? ctmp : "<unknown>");
207

208
  my_g_string_append_printf (s, depth, "Tags:\n");
209 210
  tags = gst_discoverer_stream_info_get_tags (info);
  if (tags) {
211
    tmp = gst_tag_list_to_string (tags);
212
    my_g_string_append_printf (s, depth, "  %s\n", tmp);
213 214
    g_free (tmp);
  } else {
215
    my_g_string_append_printf (s, depth, "  None\n");
216 217
  }
  if (verbose)
218
    my_g_string_append_printf (s, depth, "\n");
219 220 221 222

  return g_string_free (s, FALSE);
}

223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255
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);
256 257 258 259
    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
260 261 262 263
    if (desc) {
      g_print ("%s", desc);
      g_free (desc);
    }
264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283
  }
}

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;

284 285 286
    streams =
        gst_discoverer_container_info_get_streams (GST_DISCOVERER_CONTAINER_INFO
        (info));
287 288 289 290 291 292 293 294
    for (tmp = streams; tmp; tmp = tmp->next) {
      GstDiscovererStreamInfo *tmpinf = (GstDiscovererStreamInfo *) tmp->data;
      print_topology (tmpinf, depth + 1);
    }
    gst_discoverer_stream_info_list_free (streams);
  }
}

295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323
static void
print_tag_foreach (const GstTagList * tags, const gchar * tag,
    gpointer user_data)
{
  GValue val = { 0, };
  gchar *str;
  gint depth = GPOINTER_TO_INT (user_data);

  gst_tag_list_copy_value (&val, tags, tag);

  if (G_VALUE_HOLDS_STRING (&val))
    str = g_value_dup_string (&val);
  else
    str = gst_value_serialize (&val);

  g_print ("%*s%s: %s\n", 2 * depth, " ", gst_tag_get_nick (tag), str);
  g_free (str);

  g_value_unset (&val);
}

#define MAX_INDENT 40

static void
print_toc_entry (gpointer data, gpointer user_data)
{
  GstTocEntry *entry = (GstTocEntry *) data;
  gint depth = GPOINTER_TO_INT (user_data);
  guint indent = MIN (GPOINTER_TO_UINT (user_data), MAX_INDENT);
324 325
  GstTagList *tags;
  GList *subentries;
326 327
  gint64 start, stop;

328
  gst_toc_entry_get_start_stop_times (entry, &start, &stop);
329
  g_print ("%*s%s: start: %" GST_TIME_FORMAT " stop: %" GST_TIME_FORMAT "\n",
330 331
      depth, " ",
      gst_toc_entry_type_get_nick (gst_toc_entry_get_entry_type (entry)),
332 333 334 335
      GST_TIME_ARGS (start), GST_TIME_ARGS (stop));
  indent += 2;

  /* print tags */
336 337
  tags = gst_toc_entry_get_tags (entry);
  if (tags) {
338
    g_print ("%*sTags:\n", 2 * depth, " ");
339 340
    gst_tag_list_foreach (tags, print_tag_foreach, GUINT_TO_POINTER (indent));
  }
341 342

  /* loop over sub-toc entries */
343 344
  subentries = gst_toc_entry_get_sub_entries (entry);
  g_list_foreach (subentries, print_toc_entry, GUINT_TO_POINTER (indent));
345 346
}

347
static void
Stefan Kost's avatar
Stefan Kost committed
348
print_properties (GstDiscovererInfo * info, gint tab)
349
{
350
  const GstTagList *tags;
351
  const GstToc *toc;
352

Stefan Kost's avatar
Stefan Kost committed
353
  g_print ("%*sDuration: %" GST_TIME_FORMAT "\n", tab + 1, " ",
354
      GST_TIME_ARGS (gst_discoverer_info_get_duration (info)));
Stefan Kost's avatar
Stefan Kost committed
355 356
  g_print ("%*sSeekable: %s\n", tab + 1, " ",
      (gst_discoverer_info_get_seekable (info) ? "yes" : "no"));
357 358
  if ((tags = gst_discoverer_info_get_tags (info))) {
    g_print ("%*sTags: \n", tab + 1, " ");
359
    gst_tag_list_foreach (tags, print_tag_foreach, GUINT_TO_POINTER (tab + 2));
360
  }
361
  if (show_toc && (toc = gst_discoverer_info_get_toc (info))) {
362 363
    GList *entries;

364
    g_print ("%*sTOC: \n", tab + 1, " ");
365 366
    entries = gst_toc_get_entries (toc);
    g_list_foreach (entries, print_toc_entry, GUINT_TO_POINTER (tab + 5));
367
  }
368 369 370 371 372 373
}

static void
print_info (GstDiscovererInfo * info, GError * err)
{
  GstDiscovererResult result = gst_discoverer_info_get_result (info);
374
  GstDiscovererStreamInfo *sinfo;
375 376

  g_print ("Done discovering %s\n", gst_discoverer_info_get_uri (info));
377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412
  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;
413 414 415
    }
  }

416 417 418
  if ((sinfo = gst_discoverer_info_get_stream_info (info))) {
    g_print ("\nTopology:\n");
    print_topology (sinfo, 1);
Stefan Kost's avatar
Stefan Kost committed
419 420
    g_print ("\nProperties:\n");
    print_properties (info, 1);
421 422 423
    gst_discoverer_stream_info_unref (sinfo);
  }

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
  g_print ("\n");
}

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

  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);
478 479
    if (err)
      g_error_free (err);
480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505
    gst_discoverer_info_unref (info);
  } 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
506
_discoverer_finished (GstDiscoverer * dc, GMainLoop * ml)
507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523
{
  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},
    {"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}, */
524 525
    {"toc", 'c', 0, G_OPTION_ARG_NONE, &show_toc,
        "Output TOC (chapters and editions)", NULL},
526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572
    {"verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose,
        "Verbose properties", NULL},
    {NULL}
  };
  GOptionContext *ctx;

  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);
573
    g_signal_connect (dc, "finished", G_CALLBACK (_discoverer_finished), ml);
574 575 576 577 578 579 580

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

    gst_discoverer_stop (dc);
    g_free (ps);
581
    g_main_loop_unref (ml);
582 583 584 585 586
  }
  g_object_unref (dc);

  return 0;
}