1 /*****************************************************************************
2 * media.c: Libvlc API media descripor management
3 *****************************************************************************
4 * Copyright (C) 2007 VLC authors and VideoLAN
7 * Authors: Pierre d'Herbemont <pdherbemont@videolan.org>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
31 #include <vlc/libvlc.h>
32 #include <vlc/libvlc_media.h>
33 #include <vlc/libvlc_media_list.h> // For the subitems, here for convenience
34 #include <vlc/libvlc_events.h>
36 #include <vlc_common.h>
37 #include <vlc_input.h>
39 #include <vlc_playlist.h> /* For the preparser */
42 #include "../src/libvlc.h"
44 #include "libvlc_internal.h"
45 #include "media_internal.h"
47 static const vlc_meta_type_t libvlc_to_vlc_meta[] =
49 [libvlc_meta_Title] = vlc_meta_Title,
50 [libvlc_meta_Artist] = vlc_meta_Artist,
51 [libvlc_meta_Genre] = vlc_meta_Genre,
52 [libvlc_meta_Copyright] = vlc_meta_Copyright,
53 [libvlc_meta_Album] = vlc_meta_Album,
54 [libvlc_meta_TrackNumber] = vlc_meta_TrackNumber,
55 [libvlc_meta_Description] = vlc_meta_Description,
56 [libvlc_meta_Rating] = vlc_meta_Rating,
57 [libvlc_meta_Date] = vlc_meta_Date,
58 [libvlc_meta_Setting] = vlc_meta_Setting,
59 [libvlc_meta_URL] = vlc_meta_URL,
60 [libvlc_meta_Language] = vlc_meta_Language,
61 [libvlc_meta_NowPlaying] = vlc_meta_NowPlaying,
62 [libvlc_meta_Publisher] = vlc_meta_Publisher,
63 [libvlc_meta_EncodedBy] = vlc_meta_EncodedBy,
64 [libvlc_meta_ArtworkURL] = vlc_meta_ArtworkURL,
65 [libvlc_meta_TrackID] = vlc_meta_TrackID,
66 [libvlc_meta_TrackTotal] = vlc_meta_TrackTotal,
67 [libvlc_meta_Director] = vlc_meta_Director,
68 [libvlc_meta_Season] = vlc_meta_Season,
69 [libvlc_meta_Episode] = vlc_meta_Episode,
70 [libvlc_meta_ShowName] = vlc_meta_ShowName,
71 [libvlc_meta_Actors] = vlc_meta_Actors,
72 [libvlc_meta_AlbumArtist] = vlc_meta_AlbumArtist,
73 [libvlc_meta_DiscNumber] = vlc_meta_DiscNumber
76 static const libvlc_meta_t vlc_to_libvlc_meta[] =
78 [vlc_meta_Title] = libvlc_meta_Title,
79 [vlc_meta_Artist] = libvlc_meta_Artist,
80 [vlc_meta_Genre] = libvlc_meta_Genre,
81 [vlc_meta_Copyright] = libvlc_meta_Copyright,
82 [vlc_meta_Album] = libvlc_meta_Album,
83 [vlc_meta_TrackNumber] = libvlc_meta_TrackNumber,
84 [vlc_meta_Description] = libvlc_meta_Description,
85 [vlc_meta_Rating] = libvlc_meta_Rating,
86 [vlc_meta_Date] = libvlc_meta_Date,
87 [vlc_meta_Setting] = libvlc_meta_Setting,
88 [vlc_meta_URL] = libvlc_meta_URL,
89 [vlc_meta_Language] = libvlc_meta_Language,
90 [vlc_meta_NowPlaying] = libvlc_meta_NowPlaying,
91 [vlc_meta_ESNowPlaying] = libvlc_meta_NowPlaying,
92 [vlc_meta_Publisher] = libvlc_meta_Publisher,
93 [vlc_meta_EncodedBy] = libvlc_meta_EncodedBy,
94 [vlc_meta_ArtworkURL] = libvlc_meta_ArtworkURL,
95 [vlc_meta_TrackID] = libvlc_meta_TrackID,
96 [vlc_meta_TrackTotal] = libvlc_meta_TrackTotal,
97 [vlc_meta_Director] = libvlc_meta_Director,
98 [vlc_meta_Season] = libvlc_meta_Season,
99 [vlc_meta_Episode] = libvlc_meta_Episode,
100 [vlc_meta_ShowName] = libvlc_meta_ShowName,
101 [vlc_meta_Actors] = libvlc_meta_Actors,
102 [vlc_meta_AlbumArtist] = libvlc_meta_AlbumArtist,
103 [vlc_meta_DiscNumber] = libvlc_meta_DiscNumber
106 /**************************************************************************
107 * input_item_subitem_added (Private) (vlc event Callback)
108 **************************************************************************/
109 static void input_item_subitem_added( const vlc_event_t *p_event,
112 libvlc_media_t * p_md = user_data;
113 libvlc_media_t * p_md_child;
114 libvlc_event_t event;
116 p_md_child = libvlc_media_new_from_input_item(
117 p_md->p_libvlc_instance,
118 p_event->u.input_item_subitem_added.p_new_child );
120 /* Add this to our media list */
121 if( p_md->p_subitems == NULL )
123 p_md->p_subitems = libvlc_media_list_new( p_md->p_libvlc_instance );
124 if( unlikely(p_md->p_subitems == NULL) )
126 libvlc_media_list_set_media( p_md->p_subitems, p_md );
128 libvlc_media_list_add_media( p_md->p_subitems, p_md_child );
130 /* Construct the event */
131 event.type = libvlc_MediaSubItemAdded;
132 event.u.media_subitem_added.new_child = p_md_child;
135 libvlc_event_send( p_md->p_event_manager, &event );
136 libvlc_media_release( p_md_child );
139 /**************************************************************************
140 * input_item_subitemtree_added (Private) (vlc event Callback)
141 **************************************************************************/
142 static void input_item_subitemtree_added( const vlc_event_t * p_event,
145 VLC_UNUSED( p_event );
146 libvlc_media_t * p_md = user_data;
147 libvlc_event_t event;
149 /* Construct the event */
150 event.type = libvlc_MediaSubItemTreeAdded;
151 event.u.media_subitemtree_added.item = p_md;
154 libvlc_event_send( p_md->p_event_manager, &event );
157 /**************************************************************************
158 * input_item_meta_changed (Private) (vlc event Callback)
159 **************************************************************************/
160 static void input_item_meta_changed( const vlc_event_t *p_event,
163 libvlc_media_t * p_md = user_data;
164 libvlc_event_t event;
166 /* Construct the event */
167 event.type = libvlc_MediaMetaChanged;
168 event.u.media_meta_changed.meta_type =
169 vlc_to_libvlc_meta[p_event->u.input_item_meta_changed.meta_type];
172 libvlc_event_send( p_md->p_event_manager, &event );
175 /**************************************************************************
176 * input_item_duration_changed (Private) (vlc event Callback)
177 **************************************************************************/
178 static void input_item_duration_changed( const vlc_event_t *p_event,
181 libvlc_media_t * p_md = user_data;
182 libvlc_event_t event;
184 /* Construct the event */
185 event.type = libvlc_MediaDurationChanged;
186 event.u.media_duration_changed.new_duration =
187 from_mtime(p_event->u.input_item_duration_changed.new_duration);
190 libvlc_event_send( p_md->p_event_manager, &event );
193 /**************************************************************************
194 * input_item_preparsed_changed (Private) (vlc event Callback)
195 **************************************************************************/
196 static void input_item_preparsed_changed(const vlc_event_t *p_event,
199 libvlc_media_t *media = user_data;
200 libvlc_event_t event;
202 /* Eventually notify libvlc_media_parse() */
203 vlc_mutex_lock(&media->parsed_lock);
204 media->is_parsed = true;
205 vlc_cond_broadcast(&media->parsed_cond);
206 vlc_mutex_unlock(&media->parsed_lock);
209 /* Construct the event */
210 event.type = libvlc_MediaParsedChanged;
211 event.u.media_parsed_changed.new_status =
212 p_event->u.input_item_preparsed_changed.new_status;
215 libvlc_event_send(media->p_event_manager, &event);
218 /**************************************************************************
219 * Install event handler (Private)
220 **************************************************************************/
221 static void install_input_item_observer( libvlc_media_t *p_md )
223 vlc_event_attach( &p_md->p_input_item->event_manager,
224 vlc_InputItemSubItemAdded,
225 input_item_subitem_added,
227 vlc_event_attach( &p_md->p_input_item->event_manager,
228 vlc_InputItemMetaChanged,
229 input_item_meta_changed,
231 vlc_event_attach( &p_md->p_input_item->event_manager,
232 vlc_InputItemDurationChanged,
233 input_item_duration_changed,
235 vlc_event_attach( &p_md->p_input_item->event_manager,
236 vlc_InputItemPreparsedChanged,
237 input_item_preparsed_changed,
239 vlc_event_attach( &p_md->p_input_item->event_manager,
240 vlc_InputItemSubItemTreeAdded,
241 input_item_subitemtree_added,
245 /**************************************************************************
246 * Uninstall event handler (Private)
247 **************************************************************************/
248 static void uninstall_input_item_observer( libvlc_media_t *p_md )
250 vlc_event_detach( &p_md->p_input_item->event_manager,
251 vlc_InputItemSubItemAdded,
252 input_item_subitem_added,
254 vlc_event_detach( &p_md->p_input_item->event_manager,
255 vlc_InputItemMetaChanged,
256 input_item_meta_changed,
258 vlc_event_detach( &p_md->p_input_item->event_manager,
259 vlc_InputItemDurationChanged,
260 input_item_duration_changed,
262 vlc_event_detach( &p_md->p_input_item->event_manager,
263 vlc_InputItemPreparsedChanged,
264 input_item_preparsed_changed,
266 vlc_event_detach( &p_md->p_input_item->event_manager,
267 vlc_InputItemSubItemTreeAdded,
268 input_item_subitemtree_added,
272 /**************************************************************************
273 * Create a new media descriptor object from an input_item
275 * That's the generic constructor
276 **************************************************************************/
277 libvlc_media_t * libvlc_media_new_from_input_item(
278 libvlc_instance_t *p_instance,
279 input_item_t *p_input_item )
281 libvlc_media_t * p_md;
285 libvlc_printerr( "No input item given" );
289 p_md = calloc( 1, sizeof(libvlc_media_t) );
292 libvlc_printerr( "Not enough memory" );
296 p_md->p_libvlc_instance = p_instance;
297 p_md->p_input_item = p_input_item;
298 p_md->i_refcount = 1;
300 vlc_cond_init(&p_md->parsed_cond);
301 vlc_mutex_init(&p_md->parsed_lock);
303 p_md->state = libvlc_NothingSpecial;
305 /* A media descriptor can be a playlist. When you open a playlist
306 * It can give a bunch of item to read. */
307 p_md->p_subitems = NULL;
309 p_md->p_event_manager = libvlc_event_manager_new( p_md, p_instance );
310 if( unlikely(p_md->p_event_manager == NULL) )
316 libvlc_event_manager_t *em = p_md->p_event_manager;
317 libvlc_event_manager_register_event_type(em, libvlc_MediaMetaChanged);
318 libvlc_event_manager_register_event_type(em, libvlc_MediaSubItemAdded);
319 libvlc_event_manager_register_event_type(em, libvlc_MediaFreed);
320 libvlc_event_manager_register_event_type(em, libvlc_MediaDurationChanged);
321 libvlc_event_manager_register_event_type(em, libvlc_MediaStateChanged);
322 libvlc_event_manager_register_event_type(em, libvlc_MediaParsedChanged);
323 libvlc_event_manager_register_event_type(em, libvlc_MediaSubItemTreeAdded);
325 vlc_gc_incref( p_md->p_input_item );
327 install_input_item_observer( p_md );
332 /**************************************************************************
333 * Create a new media descriptor object
334 **************************************************************************/
335 libvlc_media_t *libvlc_media_new_location( libvlc_instance_t *p_instance,
336 const char * psz_mrl )
338 input_item_t * p_input_item;
339 libvlc_media_t * p_md;
341 p_input_item = input_item_New( psz_mrl, NULL );
345 libvlc_printerr( "Not enough memory" );
349 p_md = libvlc_media_new_from_input_item( p_instance, p_input_item );
351 /* The p_input_item is retained in libvlc_media_new_from_input_item */
352 vlc_gc_decref( p_input_item );
357 libvlc_media_t *libvlc_media_new_path( libvlc_instance_t *p_instance,
360 char *mrl = vlc_path2uri( path, NULL );
361 if( unlikely(mrl == NULL) )
363 libvlc_printerr( "%s", vlc_strerror_c(errno) );
367 libvlc_media_t *m = libvlc_media_new_location( p_instance, mrl );
372 libvlc_media_t *libvlc_media_new_fd( libvlc_instance_t *p_instance, int fd )
375 snprintf( mrl, sizeof(mrl), "fd://%d", fd );
377 return libvlc_media_new_location( p_instance, mrl );
380 /**************************************************************************
381 * Create a new media descriptor object
382 **************************************************************************/
383 libvlc_media_t * libvlc_media_new_as_node( libvlc_instance_t *p_instance,
384 const char * psz_name )
386 input_item_t * p_input_item;
387 libvlc_media_t * p_md;
389 p_input_item = input_item_New( "vlc://nop", psz_name );
393 libvlc_printerr( "Not enough memory" );
397 p_md = libvlc_media_new_from_input_item( p_instance, p_input_item );
399 p_md->p_subitems = libvlc_media_list_new( p_md->p_libvlc_instance );
404 /**************************************************************************
405 * Add an option to the media descriptor,
406 * that will be used to determine how the media_player will read the
407 * media. This allow to use VLC advanced reading/streaming
408 * options in a per-media basis
410 * The options are detailled in vlc --long-help, for instance "--sout-all"
411 **************************************************************************/
412 void libvlc_media_add_option( libvlc_media_t * p_md,
413 const char * psz_option )
415 libvlc_media_add_option_flag( p_md, psz_option,
416 VLC_INPUT_OPTION_UNIQUE|VLC_INPUT_OPTION_TRUSTED );
419 /**************************************************************************
420 * Same as libvlc_media_add_option but with configurable flags.
421 **************************************************************************/
422 void libvlc_media_add_option_flag( libvlc_media_t * p_md,
423 const char * ppsz_option,
426 input_item_AddOption( p_md->p_input_item, ppsz_option, i_flags );
429 /**************************************************************************
430 * Delete a media descriptor object
431 **************************************************************************/
432 void libvlc_media_release( libvlc_media_t *p_md )
439 if( p_md->i_refcount > 0 )
442 if( p_md->p_subitems )
443 libvlc_media_list_release( p_md->p_subitems );
445 uninstall_input_item_observer( p_md );
446 vlc_gc_decref( p_md->p_input_item );
448 vlc_cond_destroy( &p_md->parsed_cond );
449 vlc_mutex_destroy( &p_md->parsed_lock );
451 /* Construct the event */
452 libvlc_event_t event;
453 event.type = libvlc_MediaFreed;
454 event.u.media_freed.md = p_md;
457 libvlc_event_send( p_md->p_event_manager, &event );
459 libvlc_event_manager_release( p_md->p_event_manager );
464 /**************************************************************************
465 * Retain a media descriptor object
466 **************************************************************************/
467 void libvlc_media_retain( libvlc_media_t *p_md )
473 /**************************************************************************
474 * Duplicate a media descriptor object
475 **************************************************************************/
477 libvlc_media_duplicate( libvlc_media_t *p_md_orig )
479 return libvlc_media_new_from_input_item(
480 p_md_orig->p_libvlc_instance, p_md_orig->p_input_item );
483 /**************************************************************************
484 * Get mrl from a media descriptor object
485 **************************************************************************/
487 libvlc_media_get_mrl( libvlc_media_t * p_md )
490 return input_item_GetURI( p_md->p_input_item );
493 /**************************************************************************
494 * Getter for meta information
495 **************************************************************************/
497 char *libvlc_media_get_meta( libvlc_media_t *p_md, libvlc_meta_t e_meta )
499 char *psz_meta = NULL;
501 if( e_meta == libvlc_meta_NowPlaying )
503 psz_meta = input_item_GetNowPlayingFb( p_md->p_input_item );
507 psz_meta = input_item_GetMeta( p_md->p_input_item,
508 libvlc_to_vlc_meta[e_meta] );
509 /* Should be integrated in core */
510 if( psz_meta == NULL && e_meta == libvlc_meta_Title
511 && p_md->p_input_item->psz_name != NULL )
512 psz_meta = strdup( p_md->p_input_item->psz_name );
517 /**************************************************************************
518 * Setter for meta information
519 **************************************************************************/
521 void libvlc_media_set_meta( libvlc_media_t *p_md, libvlc_meta_t e_meta, const char *psz_value )
524 input_item_SetMeta( p_md->p_input_item, libvlc_to_vlc_meta[e_meta], psz_value );
527 int libvlc_media_save_meta( libvlc_media_t *p_md )
530 vlc_object_t *p_obj = VLC_OBJECT(p_md->p_libvlc_instance->p_libvlc_int);
531 return input_item_WriteMeta( p_obj, p_md->p_input_item ) == VLC_SUCCESS;
534 /**************************************************************************
535 * Getter for state information
536 * Can be error, playing, buffering, NothingSpecial.
537 **************************************************************************/
540 libvlc_media_get_state( libvlc_media_t *p_md )
546 /**************************************************************************
547 * Setter for state information (LibVLC Internal)
548 **************************************************************************/
551 libvlc_media_set_state( libvlc_media_t *p_md,
552 libvlc_state_t state )
554 libvlc_event_t event;
558 /* Construct the event */
559 event.type = libvlc_MediaStateChanged;
560 event.u.media_state_changed.new_state = state;
563 libvlc_event_send( p_md->p_event_manager, &event );
566 /**************************************************************************
568 **************************************************************************/
569 libvlc_media_list_t *
570 libvlc_media_subitems( libvlc_media_t * p_md )
572 if( p_md->p_subitems )
573 libvlc_media_list_retain( p_md->p_subitems );
574 return p_md->p_subitems;
577 /**************************************************************************
578 * Getter for statistics information
579 **************************************************************************/
580 int libvlc_media_get_stats( libvlc_media_t *p_md,
581 libvlc_media_stats_t *p_stats )
583 if( !p_md->p_input_item )
586 input_stats_t *p_itm_stats = p_md->p_input_item->p_stats;
587 vlc_mutex_lock( &p_itm_stats->lock );
588 p_stats->i_read_bytes = p_itm_stats->i_read_bytes;
589 p_stats->f_input_bitrate = p_itm_stats->f_input_bitrate;
591 p_stats->i_demux_read_bytes = p_itm_stats->i_demux_read_bytes;
592 p_stats->f_demux_bitrate = p_itm_stats->f_demux_bitrate;
593 p_stats->i_demux_corrupted = p_itm_stats->i_demux_corrupted;
594 p_stats->i_demux_discontinuity = p_itm_stats->i_demux_discontinuity;
596 p_stats->i_decoded_video = p_itm_stats->i_decoded_video;
597 p_stats->i_decoded_audio = p_itm_stats->i_decoded_audio;
599 p_stats->i_displayed_pictures = p_itm_stats->i_displayed_pictures;
600 p_stats->i_lost_pictures = p_itm_stats->i_lost_pictures;
602 p_stats->i_played_abuffers = p_itm_stats->i_played_abuffers;
603 p_stats->i_lost_abuffers = p_itm_stats->i_lost_abuffers;
605 p_stats->i_sent_packets = p_itm_stats->i_sent_packets;
606 p_stats->i_sent_bytes = p_itm_stats->i_sent_bytes;
607 p_stats->f_send_bitrate = p_itm_stats->f_send_bitrate;
608 vlc_mutex_unlock( &p_itm_stats->lock );
612 /**************************************************************************
614 **************************************************************************/
615 libvlc_event_manager_t *
616 libvlc_media_event_manager( libvlc_media_t * p_md )
620 return p_md->p_event_manager;
623 /**************************************************************************
624 * Get duration of media object (in ms)
625 **************************************************************************/
627 libvlc_media_get_duration( libvlc_media_t * p_md )
631 if( !p_md->p_input_item )
633 libvlc_printerr( "No input item" );
637 if (!input_item_IsPreparsed( p_md->p_input_item ))
640 return from_mtime(input_item_GetDuration( p_md->p_input_item ));
643 static int media_parse(libvlc_media_t *media)
645 libvlc_int_t *libvlc = media->p_libvlc_instance->p_libvlc_int;
646 input_item_t *item = media->p_input_item;
648 /* TODO: Fetch art on need basis. But how not to break compatibility? */
649 libvlc_ArtRequest(libvlc, item, META_REQUEST_OPTION_NONE);
650 return libvlc_MetaRequest(libvlc, item, META_REQUEST_OPTION_NONE);
653 /**************************************************************************
654 * Parse the media and wait.
655 **************************************************************************/
657 libvlc_media_parse(libvlc_media_t *media)
659 vlc_mutex_lock(&media->parsed_lock);
660 if (!media->has_asked_preparse)
662 media->has_asked_preparse = true;
663 vlc_mutex_unlock(&media->parsed_lock);
665 if (media_parse(media))
666 /* Parse failed: do not wait! */
668 vlc_mutex_lock(&media->parsed_lock);
671 while (!media->is_parsed)
672 vlc_cond_wait(&media->parsed_cond, &media->parsed_lock);
673 vlc_mutex_unlock(&media->parsed_lock);
676 /**************************************************************************
677 * Parse the media but do not wait.
678 **************************************************************************/
680 libvlc_media_parse_async(libvlc_media_t *media)
684 vlc_mutex_lock(&media->parsed_lock);
685 needed = !media->has_asked_preparse;
686 media->has_asked_preparse = true;
687 vlc_mutex_unlock(&media->parsed_lock);
693 /**************************************************************************
694 * Get parsed status for media object.
695 **************************************************************************/
697 libvlc_media_is_parsed(libvlc_media_t *media)
701 vlc_mutex_lock(&media->parsed_lock);
702 parsed = media->is_parsed;
703 vlc_mutex_unlock(&media->parsed_lock);
707 /**************************************************************************
708 * Sets media descriptor's user_data. user_data is specialized data
709 * accessed by the host application, VLC.framework uses it as a pointer to
710 * an native object that references a libvlc_media_t pointer
711 **************************************************************************/
713 libvlc_media_set_user_data( libvlc_media_t * p_md, void * p_new_user_data )
716 p_md->p_user_data = p_new_user_data;
719 /**************************************************************************
720 * Get media descriptor's user_data. user_data is specialized data
721 * accessed by the host application, VLC.framework uses it as a pointer to
722 * an native object that references a libvlc_media_t pointer
723 **************************************************************************/
725 libvlc_media_get_user_data( libvlc_media_t * p_md )
728 return p_md->p_user_data;
731 /**************************************************************************
732 * Get media descriptor's elementary streams description
733 **************************************************************************/
735 libvlc_media_get_tracks_info( libvlc_media_t *p_md, libvlc_media_track_info_t ** pp_es )
739 input_item_t *p_input_item = p_md->p_input_item;
740 vlc_mutex_lock( &p_input_item->lock );
742 const int i_es = p_input_item->i_es;
743 *pp_es = (i_es > 0) ? malloc( i_es * sizeof(libvlc_media_track_info_t) ) : NULL;
745 if( !*pp_es ) /* no ES, or OOM */
747 vlc_mutex_unlock( &p_input_item->lock );
752 for( int i = 0; i < i_es; i++ )
754 libvlc_media_track_info_t *p_mes = *pp_es+i;
755 const es_format_t *p_es = p_input_item->es[i];
757 p_mes->i_codec = p_es->i_codec;
758 p_mes->i_id = p_es->i_id;
760 p_mes->i_profile = p_es->i_profile;
761 p_mes->i_level = p_es->i_level;
767 p_mes->i_type = libvlc_track_unknown;
770 p_mes->i_type = libvlc_track_video;
771 p_mes->u.video.i_height = p_es->video.i_height;
772 p_mes->u.video.i_width = p_es->video.i_width;
775 p_mes->i_type = libvlc_track_audio;
776 p_mes->u.audio.i_channels = p_es->audio.i_channels;
777 p_mes->u.audio.i_rate = p_es->audio.i_rate;
780 p_mes->i_type = libvlc_track_text;
785 vlc_mutex_unlock( &p_input_item->lock );
790 libvlc_media_tracks_get( libvlc_media_t *p_md, libvlc_media_track_t *** pp_es )
794 input_item_t *p_input_item = p_md->p_input_item;
795 vlc_mutex_lock( &p_input_item->lock );
797 const int i_es = p_input_item->i_es;
798 *pp_es = (i_es > 0) ? calloc( i_es, sizeof(**pp_es) ) : NULL;
800 if( !*pp_es ) /* no ES, or OOM */
802 vlc_mutex_unlock( &p_input_item->lock );
807 for( int i = 0; i < i_es; i++ )
809 libvlc_media_track_t *p_mes = calloc( 1, sizeof(*p_mes) );
812 p_mes->audio = malloc( __MAX(__MAX(sizeof(*p_mes->audio),
813 sizeof(*p_mes->video)),
814 sizeof(*p_mes->subtitle)) );
816 if ( !p_mes || !p_mes->audio )
818 libvlc_media_tracks_release( *pp_es, i_es );
821 vlc_mutex_unlock( &p_input_item->lock );
826 const es_format_t *p_es = p_input_item->es[i];
828 p_mes->i_codec = p_es->i_codec;
829 p_mes->i_original_fourcc = p_es->i_original_fourcc;
830 p_mes->i_id = p_es->i_id;
832 p_mes->i_profile = p_es->i_profile;
833 p_mes->i_level = p_es->i_level;
835 p_mes->i_bitrate = p_es->i_bitrate;
836 p_mes->psz_language = p_es->psz_language != NULL ? strdup(p_es->psz_language) : NULL;
837 p_mes->psz_description = p_es->psz_description != NULL ? strdup(p_es->psz_description) : NULL;
843 p_mes->i_type = libvlc_track_unknown;
846 p_mes->i_type = libvlc_track_video;
847 p_mes->video->i_height = p_es->video.i_height;
848 p_mes->video->i_width = p_es->video.i_width;
849 p_mes->video->i_sar_num = p_es->video.i_sar_num;
850 p_mes->video->i_sar_den = p_es->video.i_sar_den;
851 p_mes->video->i_frame_rate_num = p_es->video.i_frame_rate;
852 p_mes->video->i_frame_rate_den = p_es->video.i_frame_rate_base;
855 p_mes->i_type = libvlc_track_audio;
856 p_mes->audio->i_channels = p_es->audio.i_channels;
857 p_mes->audio->i_rate = p_es->audio.i_rate;
860 p_mes->i_type = libvlc_track_text;
861 p_mes->subtitle->psz_encoding = p_es->subs.psz_encoding != NULL ?
862 strdup(p_es->subs.psz_encoding) : NULL;
867 vlc_mutex_unlock( &p_input_item->lock );
871 /**************************************************************************
872 * Get codec description from media elementary stream
873 **************************************************************************/
875 libvlc_media_get_codec_description( libvlc_track_type_t i_type,
880 case libvlc_track_audio:
881 return vlc_fourcc_GetDescription( AUDIO_ES, i_codec );
882 case libvlc_track_video:
883 return vlc_fourcc_GetDescription( VIDEO_ES, i_codec );
884 case libvlc_track_text:
885 return vlc_fourcc_GetDescription( SPU_ES, i_codec );
886 case libvlc_track_unknown:
888 return vlc_fourcc_GetDescription( UNKNOWN_ES, i_codec );
892 /**************************************************************************
893 * Release media descriptor's elementary streams description array
894 **************************************************************************/
895 void libvlc_media_tracks_release( libvlc_media_track_t **p_tracks, unsigned i_count )
897 for( unsigned i = 0; i < i_count; ++i )
901 free( p_tracks[i]->psz_language );
902 free( p_tracks[i]->psz_description );
903 switch( p_tracks[i]->i_type )
905 case libvlc_track_audio:
907 case libvlc_track_video:
909 case libvlc_track_text:
910 free( p_tracks[i]->subtitle->psz_encoding );
912 case libvlc_track_unknown:
916 free( p_tracks[i]->audio );