git.sesse.net Git - vlc/blob - src/control/media.c

   1 /*****************************************************************************
   2  * media.c: Libvlc API media descripor management
   3  *****************************************************************************
   4  * Copyright (C) 2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Pierre d'Herbemont <pdherbemont@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  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 General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #ifdef HAVE_CONFIG_H
  25 # include "config.h"
  26 #endif
  27
  28 #include <assert.h>
  29
  30 #include <vlc/libvlc.h>
  31 #include <vlc/libvlc_media.h>
  32 #include <vlc/libvlc_media_list.h> // For the subitems, here for convenience
  33 #include <vlc/libvlc_events.h>
  34
  35 #include <vlc_common.h>
  36 #include <vlc_input.h>
  37 #include <vlc_meta.h>
  38 #include <vlc_playlist.h> /* For the preparser */
  39
  40 #include "libvlc.h"
  41
  42 #include "libvlc_internal.h"
  43 #include "media_internal.h"
  44
  45 static const vlc_meta_type_t libvlc_to_vlc_meta[] =
  46 {
  47     [libvlc_meta_Title]        = vlc_meta_Title,
  48     [libvlc_meta_Artist]       = vlc_meta_Artist,
  49     [libvlc_meta_Genre]        = vlc_meta_Genre,
  50     [libvlc_meta_Copyright]    = vlc_meta_Copyright,
  51     [libvlc_meta_Album]        = vlc_meta_Album,
  52     [libvlc_meta_TrackNumber]  = vlc_meta_TrackNumber,
  53     [libvlc_meta_Description]  = vlc_meta_Description,
  54     [libvlc_meta_Rating]       = vlc_meta_Rating,
  55     [libvlc_meta_Date]         = vlc_meta_Date,
  56     [libvlc_meta_Setting]      = vlc_meta_Setting,
  57     [libvlc_meta_URL]          = vlc_meta_URL,
  58     [libvlc_meta_Language]     = vlc_meta_Language,
  59     [libvlc_meta_NowPlaying]   = vlc_meta_NowPlaying,
  60     [libvlc_meta_Publisher]    = vlc_meta_Publisher,
  61     [libvlc_meta_EncodedBy]    = vlc_meta_EncodedBy,
  62     [libvlc_meta_ArtworkURL]   = vlc_meta_ArtworkURL,
  63     [libvlc_meta_TrackID]      = vlc_meta_TrackID
  64 };
  65
  66 static const libvlc_meta_t vlc_to_libvlc_meta[] =
  67 {
  68     [vlc_meta_Title]        = libvlc_meta_Title,
  69     [vlc_meta_Artist]       = libvlc_meta_Artist,
  70     [vlc_meta_Genre]        = libvlc_meta_Genre,
  71     [vlc_meta_Copyright]    = libvlc_meta_Copyright,
  72     [vlc_meta_Album]        = libvlc_meta_Album,
  73     [vlc_meta_TrackNumber]  = libvlc_meta_TrackNumber,
  74     [vlc_meta_Description]  = libvlc_meta_Description,
  75     [vlc_meta_Rating]       = libvlc_meta_Rating,
  76     [vlc_meta_Date]         = libvlc_meta_Date,
  77     [vlc_meta_Setting]      = libvlc_meta_Setting,
  78     [vlc_meta_URL]          = libvlc_meta_URL,
  79     [vlc_meta_Language]     = libvlc_meta_Language,
  80     [vlc_meta_NowPlaying]   = libvlc_meta_NowPlaying,
  81     [vlc_meta_Publisher]    = libvlc_meta_Publisher,
  82     [vlc_meta_EncodedBy]    = libvlc_meta_EncodedBy,
  83     [vlc_meta_ArtworkURL]   = libvlc_meta_ArtworkURL,
  84     [vlc_meta_TrackID]      = libvlc_meta_TrackID
  85 };
  86
  87 /**************************************************************************
  88  * input_item_subitem_added (Private) (vlc event Callback)
  89  **************************************************************************/
  90 static void input_item_subitem_added( const vlc_event_t *p_event,
  91                                        void * user_data )
  92 {
  93     libvlc_media_t * p_md = user_data;
  94     libvlc_media_t * p_md_child;
  95     libvlc_event_t event;
  96
  97     p_md_child = libvlc_media_new_from_input_item(
  98                 p_md->p_libvlc_instance,
  99                 p_event->u.input_item_subitem_added.p_new_child );
 100
 101     /* Add this to our media list */
 102     if( !p_md->p_subitems )
 103     {
 104         p_md->p_subitems = libvlc_media_list_new( p_md->p_libvlc_instance );
 105         libvlc_media_list_set_media( p_md->p_subitems, p_md );
 106     }
 107     if( p_md->p_subitems )
 108     {
 109         libvlc_media_list_add_media( p_md->p_subitems, p_md_child );
 110     }
 111
 112     /* Construct the event */
 113     event.type = libvlc_MediaSubItemAdded;
 114     event.u.media_subitem_added.new_child = p_md_child;
 115
 116     /* Send the event */
 117     libvlc_event_send( p_md->p_event_manager, &event );
 118     libvlc_media_release( p_md_child );
 119 }
 120
 121 /**************************************************************************
 122  * input_item_meta_changed (Private) (vlc event Callback)
 123  **************************************************************************/
 124 static void input_item_meta_changed( const vlc_event_t *p_event,
 125                                      void * user_data )
 126 {
 127     libvlc_media_t * p_md = user_data;
 128     libvlc_event_t event;
 129
 130     /* Construct the event */
 131     event.type = libvlc_MediaMetaChanged;
 132     event.u.media_meta_changed.meta_type =
 133         vlc_to_libvlc_meta[p_event->u.input_item_meta_changed.meta_type];
 134
 135     /* Send the event */
 136     libvlc_event_send( p_md->p_event_manager, &event );
 137 }
 138
 139 /**************************************************************************
 140  * input_item_duration_changed (Private) (vlc event Callback)
 141  **************************************************************************/
 142 static void input_item_duration_changed( const vlc_event_t *p_event,
 143                                          void * user_data )
 144 {
 145     libvlc_media_t * p_md = user_data;
 146     libvlc_event_t event;
 147
 148     /* Construct the event */
 149     event.type = libvlc_MediaDurationChanged;
 150     event.u.media_duration_changed.new_duration =
 151         from_mtime(p_event->u.input_item_duration_changed.new_duration);
 152
 153     /* Send the event */
 154     libvlc_event_send( p_md->p_event_manager, &event );
 155 }
 156
 157 /**************************************************************************
 158  * input_item_preparsed_changed (Private) (vlc event Callback)
 159  **************************************************************************/
 160 static void input_item_preparsed_changed( const vlc_event_t *p_event,
 161                                           void * user_data )
 162 {
 163     libvlc_media_t * p_md = user_data;
 164     libvlc_event_t event;
 165
 166     /* Construct the event */
 167     event.type = libvlc_MediaPreparsedChanged;
 168     event.u.media_preparsed_changed.new_status =
 169         p_event->u.input_item_preparsed_changed.new_status;
 170
 171     /* Send the event */
 172     libvlc_event_send( p_md->p_event_manager, &event );
 173 }
 174
 175 /**************************************************************************
 176  * Install event handler (Private)
 177  **************************************************************************/
 178 static void install_input_item_observer( libvlc_media_t *p_md )
 179 {
 180     vlc_event_attach( &p_md->p_input_item->event_manager,
 181                       vlc_InputItemSubItemAdded,
 182                       input_item_subitem_added,
 183                       p_md );
 184     vlc_event_attach( &p_md->p_input_item->event_manager,
 185                       vlc_InputItemMetaChanged,
 186                       input_item_meta_changed,
 187                       p_md );
 188     vlc_event_attach( &p_md->p_input_item->event_manager,
 189                       vlc_InputItemDurationChanged,
 190                       input_item_duration_changed,
 191                       p_md );
 192     vlc_event_attach( &p_md->p_input_item->event_manager,
 193                       vlc_InputItemPreparsedChanged,
 194                       input_item_preparsed_changed,
 195                       p_md );
 196 }
 197
 198 /**************************************************************************
 199  * Uninstall event handler (Private)
 200  **************************************************************************/
 201 static void uninstall_input_item_observer( libvlc_media_t *p_md )
 202 {
 203     vlc_event_detach( &p_md->p_input_item->event_manager,
 204                       vlc_InputItemSubItemAdded,
 205                       input_item_subitem_added,
 206                       p_md );
 207     vlc_event_detach( &p_md->p_input_item->event_manager,
 208                       vlc_InputItemMetaChanged,
 209                       input_item_meta_changed,
 210                       p_md );
 211     vlc_event_detach( &p_md->p_input_item->event_manager,
 212                       vlc_InputItemDurationChanged,
 213                       input_item_duration_changed,
 214                       p_md );
 215     vlc_event_detach( &p_md->p_input_item->event_manager,
 216                       vlc_InputItemPreparsedChanged,
 217                       input_item_preparsed_changed,
 218                       p_md );
 219 }
 220
 221 /**************************************************************************
 222  * Preparse if not already done (Private)
 223  **************************************************************************/
 224 static void preparse_if_needed( libvlc_media_t *p_md )
 225 {
 226     /* XXX: need some locking here */
 227     if (!p_md->b_preparsed)
 228     {
 229         playlist_PreparseEnqueue(
 230                 libvlc_priv (p_md->p_libvlc_instance->p_libvlc_int)->p_playlist,
 231                 p_md->p_input_item, pl_Unlocked );
 232         p_md->b_preparsed = true;
 233     }
 234 }
 235
 236 /**************************************************************************
 237  * Create a new media descriptor object from an input_item
 238  * (libvlc internal)
 239  * That's the generic constructor
 240  **************************************************************************/
 241 libvlc_media_t * libvlc_media_new_from_input_item(
 242                                    libvlc_instance_t *p_instance,
 243                                    input_item_t *p_input_item )
 244 {
 245     libvlc_media_t * p_md;
 246
 247     if (!p_input_item)
 248     {
 249         libvlc_printerr( "No input item given" );
 250         return NULL;
 251     }
 252
 253     p_md = calloc( 1, sizeof(libvlc_media_t) );
 254     if( !p_md )
 255     {
 256         libvlc_printerr( "Not enough memory" );
 257         return NULL;
 258     }
 259
 260     p_md->p_libvlc_instance = p_instance;
 261     p_md->p_input_item      = p_input_item;
 262     p_md->i_refcount        = 1;
 263
 264     p_md->state = libvlc_NothingSpecial;
 265
 266     /* A media descriptor can be a playlist. When you open a playlist
 267      * It can give a bunch of item to read. */
 268     p_md->p_subitems        = NULL;
 269
 270     p_md->p_event_manager = libvlc_event_manager_new( p_md, p_instance );
 271     if( unlikely(p_md->p_event_manager == NULL) )
 272     {
 273         free(p_md);
 274         return NULL;
 275     }
 276     libvlc_event_manager_register_event_type( p_md->p_event_manager,
 277         libvlc_MediaMetaChanged );
 278     libvlc_event_manager_register_event_type( p_md->p_event_manager,
 279         libvlc_MediaSubItemAdded );
 280     libvlc_event_manager_register_event_type( p_md->p_event_manager,
 281         libvlc_MediaFreed );
 282     libvlc_event_manager_register_event_type( p_md->p_event_manager,
 283         libvlc_MediaDurationChanged );
 284     libvlc_event_manager_register_event_type( p_md->p_event_manager,
 285         libvlc_MediaStateChanged );
 286
 287     vlc_gc_incref( p_md->p_input_item );
 288
 289     install_input_item_observer( p_md );
 290
 291     return p_md;
 292 }
 293
 294 /**************************************************************************
 295  * Create a new media descriptor object
 296  **************************************************************************/
 297 libvlc_media_t * libvlc_media_new( libvlc_instance_t *p_instance,
 298                                    const char * psz_mrl )
 299 {
 300     input_item_t * p_input_item;
 301     libvlc_media_t * p_md;
 302
 303     p_input_item = input_item_New( p_instance->p_libvlc_int, psz_mrl, NULL );
 304
 305     if (!p_input_item)
 306     {
 307         libvlc_printerr( "Not enough memory" );
 308         return NULL;
 309     }
 310
 311     p_md = libvlc_media_new_from_input_item( p_instance, p_input_item );
 312
 313     /* The p_input_item is retained in libvlc_media_new_from_input_item */
 314     vlc_gc_decref( p_input_item );
 315
 316     return p_md;
 317 }
 318
 319 /**************************************************************************
 320  * Create a new media descriptor object
 321  **************************************************************************/
 322 libvlc_media_t * libvlc_media_new_as_node( libvlc_instance_t *p_instance,
 323                                            const char * psz_name )
 324 {
 325     input_item_t * p_input_item;
 326     libvlc_media_t * p_md;
 327
 328     p_input_item = input_item_New( p_instance->p_libvlc_int, "vlc://nop", psz_name );
 329
 330     if (!p_input_item)
 331     {
 332         libvlc_printerr( "Not enough memory" );
 333         return NULL;
 334     }
 335
 336     p_md = libvlc_media_new_from_input_item( p_instance, p_input_item );
 337
 338     p_md->p_subitems = libvlc_media_list_new( p_md->p_libvlc_instance );
 339
 340     return p_md;
 341 }
 342
 343 /**************************************************************************
 344  * Add an option to the media descriptor,
 345  * that will be used to determine how the media_player will read the
 346  * media. This allow to use VLC advanced reading/streaming
 347  * options in a per-media basis
 348  *
 349  * The options are detailled in vlc --long-help, for instance "--sout-all"
 350  **************************************************************************/
 351 void libvlc_media_add_option(
 352                                    libvlc_media_t * p_md,
 353                                    const char * psz_option )
 354 {
 355     input_item_AddOption( p_md->p_input_item, psz_option,
 356                           VLC_INPUT_OPTION_UNIQUE|VLC_INPUT_OPTION_TRUSTED );
 357 }
 358
 359 /**************************************************************************
 360  * Same as libvlc_media_add_option but with configurable flags.
 361  **************************************************************************/
 362 void libvlc_media_add_option_flag(
 363                                    libvlc_media_t * p_md,
 364                                    const char * ppsz_option,
 365                                    libvlc_media_option_t i_flags )
 366 {
 367     input_item_AddOption( p_md->p_input_item, ppsz_option,
 368                           i_flags );
 369 }
 370
 371 /**************************************************************************
 372  * Delete a media descriptor object
 373  **************************************************************************/
 374 void libvlc_media_release( libvlc_media_t *p_md )
 375 {
 376     if (!p_md)
 377         return;
 378
 379     p_md->i_refcount--;
 380
 381     if( p_md->i_refcount > 0 )
 382         return;
 383
 384     if( p_md->p_subitems )
 385         libvlc_media_list_release( p_md->p_subitems );
 386
 387     uninstall_input_item_observer( p_md );
 388     vlc_gc_decref( p_md->p_input_item );
 389
 390     /* Construct the event */
 391     libvlc_event_t event;
 392     event.type = libvlc_MediaFreed;
 393     event.u.media_freed.md = p_md;
 394
 395     /* Send the event */
 396     libvlc_event_send( p_md->p_event_manager, &event );
 397
 398     libvlc_event_manager_release( p_md->p_event_manager );
 399
 400     free( p_md );
 401 }
 402
 403 /**************************************************************************
 404  * Retain a media descriptor object
 405  **************************************************************************/
 406 void libvlc_media_retain( libvlc_media_t *p_md )
 407 {
 408     assert (p_md);
 409     p_md->i_refcount++;
 410 }
 411
 412 /**************************************************************************
 413  * Duplicate a media descriptor object
 414  **************************************************************************/
 415 libvlc_media_t *
 416 libvlc_media_duplicate( libvlc_media_t *p_md_orig )
 417 {
 418     return libvlc_media_new_from_input_item(
 419         p_md_orig->p_libvlc_instance, p_md_orig->p_input_item );
 420 }
 421
 422 /**************************************************************************
 423  * Get mrl from a media descriptor object
 424  **************************************************************************/
 425 char *
 426 libvlc_media_get_mrl( libvlc_media_t * p_md )
 427 {
 428     assert( p_md );
 429     return input_item_GetURI( p_md->p_input_item );
 430 }
 431
 432 /**************************************************************************
 433  * Getter for meta information
 434  **************************************************************************/
 435
 436 char *libvlc_media_get_meta( libvlc_media_t *p_md, libvlc_meta_t e_meta )
 437 {
 438     char * psz_meta;
 439
 440     assert( p_md );
 441     /* XXX: locking */
 442
 443     preparse_if_needed( p_md );
 444
 445     psz_meta = input_item_GetMeta( p_md->p_input_item,
 446                                    libvlc_to_vlc_meta[e_meta] );
 447
 448     if( e_meta == libvlc_meta_ArtworkURL && !psz_meta && !p_md->has_asked_art )
 449     {
 450         p_md->has_asked_art = true;
 451         playlist_AskForArtEnqueue(
 452                 libvlc_priv(p_md->p_libvlc_instance->p_libvlc_int)->p_playlist,
 453                 p_md->p_input_item, pl_Unlocked );
 454     }
 455
 456     /* Should be integrated in core */
 457     if( !psz_meta && e_meta == libvlc_meta_Title && p_md->p_input_item->psz_name )
 458     {
 459         free( psz_meta );
 460         return strdup( p_md->p_input_item->psz_name );
 461     }
 462
 463     return psz_meta;
 464 }
 465
 466 /**************************************************************************
 467  * Setter for meta information
 468  **************************************************************************/
 469
 470 void libvlc_media_set_meta( libvlc_media_t *p_md, libvlc_meta_t e_meta, const char *psz_value )
 471 {
 472     assert( p_md );
 473     input_item_SetMeta( p_md->p_input_item, libvlc_to_vlc_meta[e_meta], psz_value );
 474 }
 475
 476 int libvlc_media_save_meta( libvlc_media_t *p_md )
 477 {
 478     assert( p_md );
 479     vlc_object_t *p_obj = VLC_OBJECT(libvlc_priv(
 480                             p_md->p_libvlc_instance->p_libvlc_int)->p_playlist);
 481     return input_item_WriteMeta( p_obj, p_md->p_input_item ) == VLC_SUCCESS;
 482 }
 483
 484 /**************************************************************************
 485  * Getter for state information
 486  * Can be error, playing, buffering, NothingSpecial.
 487  **************************************************************************/
 488
 489 libvlc_state_t
 490 libvlc_media_get_state( libvlc_media_t *p_md )
 491 {
 492     assert( p_md );
 493     return p_md->state;
 494 }
 495
 496 /**************************************************************************
 497  * Setter for state information (LibVLC Internal)
 498  **************************************************************************/
 499
 500 void
 501 libvlc_media_set_state( libvlc_media_t *p_md,
 502                                    libvlc_state_t state )
 503 {
 504     libvlc_event_t event;
 505
 506     p_md->state = state;
 507
 508     /* Construct the event */
 509     event.type = libvlc_MediaStateChanged;
 510     event.u.media_state_changed.new_state = state;
 511
 512     /* Send the event */
 513     libvlc_event_send( p_md->p_event_manager, &event );
 514 }
 515
 516 /**************************************************************************
 517  * subitems
 518  **************************************************************************/
 519 libvlc_media_list_t *
 520 libvlc_media_subitems( libvlc_media_t * p_md )
 521 {
 522     if( p_md->p_subitems )
 523         libvlc_media_list_retain( p_md->p_subitems );
 524     return p_md->p_subitems;
 525 }
 526
 527 /**************************************************************************
 528  * Getter for statistics information
 529  **************************************************************************/
 530 int libvlc_media_get_stats( libvlc_media_t *p_md,
 531                             libvlc_media_stats_t *p_stats )
 532 {
 533     if( !p_md->p_input_item )
 534         return false;
 535
 536     input_stats_t *p_itm_stats = p_md->p_input_item->p_stats;
 537     vlc_mutex_lock( &p_itm_stats->lock );
 538     p_stats->i_read_bytes = p_itm_stats->i_read_bytes;
 539     p_stats->f_input_bitrate = p_itm_stats->f_input_bitrate;
 540
 541     p_stats->i_demux_read_bytes = p_itm_stats->i_demux_read_bytes;
 542     p_stats->f_demux_bitrate = p_itm_stats->f_demux_bitrate;
 543     p_stats->i_demux_corrupted = p_itm_stats->i_demux_corrupted;
 544     p_stats->i_demux_discontinuity = p_itm_stats->i_demux_discontinuity;
 545
 546     p_stats->i_decoded_video = p_itm_stats->i_decoded_video;
 547     p_stats->i_decoded_audio = p_itm_stats->i_decoded_audio;
 548
 549     p_stats->i_displayed_pictures = p_itm_stats->i_displayed_pictures;
 550     p_stats->i_lost_pictures = p_itm_stats->i_lost_pictures;
 551
 552     p_stats->i_played_abuffers = p_itm_stats->i_played_abuffers;
 553     p_stats->i_lost_abuffers = p_itm_stats->i_lost_abuffers;
 554
 555     p_stats->i_sent_packets = p_itm_stats->i_sent_packets;
 556     p_stats->i_sent_bytes = p_itm_stats->i_sent_bytes;
 557     p_stats->f_send_bitrate = p_itm_stats->f_send_bitrate;
 558     vlc_mutex_unlock( &p_itm_stats->lock );
 559     return true;
 560 }
 561
 562 /**************************************************************************
 563  * event_manager
 564  **************************************************************************/
 565 libvlc_event_manager_t *
 566 libvlc_media_event_manager( libvlc_media_t * p_md )
 567 {
 568     assert( p_md );
 569
 570     return p_md->p_event_manager;
 571 }
 572
 573 /**************************************************************************
 574  * Get duration of media object (in ms)
 575  **************************************************************************/
 576 int64_t
 577 libvlc_media_get_duration( libvlc_media_t * p_md )
 578 {
 579     assert( p_md );
 580
 581     if( !p_md->p_input_item )
 582     {
 583         libvlc_printerr( "No input item" );
 584         return -1;
 585     }
 586
 587     preparse_if_needed( p_md );
 588
 589     if (!input_item_IsPreparsed( p_md->p_input_item ))
 590         return -1;
 591
 592     return from_mtime(input_item_GetDuration( p_md->p_input_item ));
 593 }
 594
 595 /**************************************************************************
 596  * Get preparsed status for media object.
 597  **************************************************************************/
 598 int
 599 libvlc_media_is_preparsed( libvlc_media_t * p_md )
 600 {
 601     assert( p_md );
 602
 603     if( !p_md->p_input_item )
 604         return false;
 605
 606     return input_item_IsPreparsed( p_md->p_input_item );
 607 }
 608
 609 /**************************************************************************
 610  * Sets media descriptor's user_data. user_data is specialized data
 611  * accessed by the host application, VLC.framework uses it as a pointer to
 612  * an native object that references a libvlc_media_t pointer
 613  **************************************************************************/
 614 void
 615 libvlc_media_set_user_data( libvlc_media_t * p_md, void * p_new_user_data )
 616 {
 617     assert( p_md );
 618     p_md->p_user_data = p_new_user_data;
 619 }
 620
 621 /**************************************************************************
 622  * Get media descriptor's user_data. user_data is specialized data
 623  * accessed by the host application, VLC.framework uses it as a pointer to
 624  * an native object that references a libvlc_media_t pointer
 625  **************************************************************************/
 626 void *
 627 libvlc_media_get_user_data( libvlc_media_t * p_md )
 628 {
 629     assert( p_md );
 630     return p_md->p_user_data;
 631 }
 632
 633 /**************************************************************************
 634  * Get media descriptor's elementary streams description
 635  **************************************************************************/
 636 int
 637 libvlc_media_get_es( libvlc_media_t *p_md, libvlc_media_es_t ** pp_es )
 638 {
 639     assert( p_md );
 640
 641     input_item_t *p_input_item = p_md->p_input_item;
 642     vlc_mutex_lock( &p_input_item->lock );
 643
 644     const int i_es = p_input_item->i_es;
 645     *pp_es = (i_es > 0) ? malloc( i_es * sizeof(libvlc_media_es_t) ) : NULL;
 646
 647     if( !pp_es ) /* no ES, or OOM */
 648     {
 649         vlc_mutex_unlock( &p_input_item->lock );
 650         return 0;
 651     }
 652
 653     /* Fill array */
 654     for( int i = 0; i < i_es; i++ )
 655     {
 656         libvlc_media_es_t *p_mes = *pp_es+i;
 657         const es_format_t *p_es = p_input_item->es[i];
 658
 659         p_mes->i_channels = p_mes->i_rate = 0;
 660         p_mes->i_width = p_mes->i_height = 0;
 661
 662
 663         p_mes->i_codec = p_es->i_codec;
 664         p_mes->i_id = p_es->i_id;
 665
 666         p_mes->i_profile = p_es->i_profile;
 667         p_mes->i_level = p_es->i_level;
 668
 669         switch(p_es->i_cat)
 670         {
 671         case UNKNOWN_ES:
 672         default:
 673             p_mes->i_type = libvlc_es_unknown;
 674             break;
 675         case VIDEO_ES:
 676             p_mes->i_type = libvlc_es_video;
 677             p_mes->i_height = p_es->video.i_height;
 678             p_mes->i_width = p_es->video.i_width;
 679             break;
 680         case AUDIO_ES:
 681             p_mes->i_type = libvlc_es_audio;
 682             p_mes->i_channels = p_es->audio.i_channels;
 683             p_mes->i_rate = p_es->audio.i_rate;
 684             break;
 685         case SPU_ES:
 686             p_mes->i_type = libvlc_es_text;
 687             break;
 688         }
 689     }
 690
 691     vlc_mutex_unlock( &p_input_item->lock );
 692     return i_es;
 693 }