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vlc/lib/media.c

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/*****************************************************************************
* media.c: Libvlc API media descripor management
*****************************************************************************
* Copyright (C) 2007 VLC authors and VideoLAN
* $Id$
*
* Authors: Pierre d'Herbemont <pdherbemont@videolan.org>
*
* This program 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 2.1 of the License, or
* (at your option) any later version.
*
* This program 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 program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <assert.h>
#include <errno.h>
#include <vlc/libvlc.h>
#include <vlc/libvlc_media.h>
#include <vlc/libvlc_media_list.h> // For the subitems, here for convenience
#include <vlc/libvlc_events.h>
#include <vlc_common.h>
#include <vlc_input.h>
#include <vlc_meta.h>
#include <vlc_playlist.h> /* For the preparser */
#include <vlc_url.h>
#include "../src/libvlc.h"
#include "libvlc_internal.h"
#include "media_internal.h"
#include "media_list_internal.h"
static const vlc_meta_type_t libvlc_to_vlc_meta[] =
{
[libvlc_meta_Title] = vlc_meta_Title,
[libvlc_meta_Artist] = vlc_meta_Artist,
[libvlc_meta_Genre] = vlc_meta_Genre,
[libvlc_meta_Copyright] = vlc_meta_Copyright,
[libvlc_meta_Album] = vlc_meta_Album,
[libvlc_meta_TrackNumber] = vlc_meta_TrackNumber,
[libvlc_meta_Description] = vlc_meta_Description,
[libvlc_meta_Rating] = vlc_meta_Rating,
[libvlc_meta_Date] = vlc_meta_Date,
[libvlc_meta_Setting] = vlc_meta_Setting,
[libvlc_meta_URL] = vlc_meta_URL,
[libvlc_meta_Language] = vlc_meta_Language,
[libvlc_meta_NowPlaying] = vlc_meta_NowPlaying,
[libvlc_meta_Publisher] = vlc_meta_Publisher,
[libvlc_meta_EncodedBy] = vlc_meta_EncodedBy,
[libvlc_meta_ArtworkURL] = vlc_meta_ArtworkURL,
[libvlc_meta_TrackID] = vlc_meta_TrackID,
[libvlc_meta_TrackTotal] = vlc_meta_TrackTotal,
[libvlc_meta_Director] = vlc_meta_Director,
[libvlc_meta_Season] = vlc_meta_Season,
[libvlc_meta_Episode] = vlc_meta_Episode,
[libvlc_meta_ShowName] = vlc_meta_ShowName,
[libvlc_meta_Actors] = vlc_meta_Actors,
[libvlc_meta_AlbumArtist] = vlc_meta_AlbumArtist,
[libvlc_meta_DiscNumber] = vlc_meta_DiscNumber
};
static const libvlc_meta_t vlc_to_libvlc_meta[] =
{
[vlc_meta_Title] = libvlc_meta_Title,
[vlc_meta_Artist] = libvlc_meta_Artist,
[vlc_meta_Genre] = libvlc_meta_Genre,
[vlc_meta_Copyright] = libvlc_meta_Copyright,
[vlc_meta_Album] = libvlc_meta_Album,
[vlc_meta_TrackNumber] = libvlc_meta_TrackNumber,
[vlc_meta_Description] = libvlc_meta_Description,
[vlc_meta_Rating] = libvlc_meta_Rating,
[vlc_meta_Date] = libvlc_meta_Date,
[vlc_meta_Setting] = libvlc_meta_Setting,
[vlc_meta_URL] = libvlc_meta_URL,
[vlc_meta_Language] = libvlc_meta_Language,
[vlc_meta_NowPlaying] = libvlc_meta_NowPlaying,
[vlc_meta_ESNowPlaying] = libvlc_meta_NowPlaying,
[vlc_meta_Publisher] = libvlc_meta_Publisher,
[vlc_meta_EncodedBy] = libvlc_meta_EncodedBy,
[vlc_meta_ArtworkURL] = libvlc_meta_ArtworkURL,
[vlc_meta_TrackID] = libvlc_meta_TrackID,
[vlc_meta_TrackTotal] = libvlc_meta_TrackTotal,
[vlc_meta_Director] = libvlc_meta_Director,
[vlc_meta_Season] = libvlc_meta_Season,
[vlc_meta_Episode] = libvlc_meta_Episode,
[vlc_meta_ShowName] = libvlc_meta_ShowName,
[vlc_meta_Actors] = libvlc_meta_Actors,
[vlc_meta_AlbumArtist] = libvlc_meta_AlbumArtist,
[vlc_meta_DiscNumber] = libvlc_meta_DiscNumber
};
static libvlc_media_list_t *media_get_subitems( libvlc_media_t * p_md,
bool b_create )
{
libvlc_media_list_t *p_subitems = NULL;
vlc_mutex_lock( &p_md->subitems_lock );
if( p_md->p_subitems == NULL && b_create )
{
p_md->p_subitems = libvlc_media_list_new( p_md->p_libvlc_instance );
if( p_md->p_subitems != NULL )
{
p_md->p_subitems->b_read_only = true;
p_md->p_subitems->p_internal_md = p_md;
}
}
p_subitems = p_md->p_subitems;
vlc_mutex_unlock( &p_md->subitems_lock );
return p_subitems;
}
/**************************************************************************
* input_item_subitem_added (Private) (vlc event Callback)
**************************************************************************/
static void input_item_subitem_added( const vlc_event_t *p_event,
void * user_data )
{
libvlc_media_t * p_md = user_data;
libvlc_media_t * p_md_child;
libvlc_media_list_t *p_subitems;
libvlc_event_t event;
p_md_child = libvlc_media_new_from_input_item(
p_md->p_libvlc_instance,
p_event->u.input_item_subitem_added.p_new_child );
/* Add this to our media list */
p_subitems = media_get_subitems( p_md, true );
if( p_subitems != NULL )
{
libvlc_media_list_lock( p_subitems );
libvlc_media_list_internal_add_media( p_subitems, p_md_child );
libvlc_media_list_unlock( p_subitems );
}
/* Construct the event */
event.type = libvlc_MediaSubItemAdded;
event.u.media_subitem_added.new_child = p_md_child;
/* Send the event */
libvlc_event_send( p_md->p_event_manager, &event );
libvlc_media_release( p_md_child );
}
/**************************************************************************
* input_item_subitemtree_added (Private) (vlc event Callback)
**************************************************************************/
static void input_item_subitemtree_added( const vlc_event_t * p_event,
void * user_data )
{
VLC_UNUSED( p_event );
libvlc_media_t * p_md = user_data;
libvlc_event_t event;
/* Construct the event */
event.type = libvlc_MediaSubItemTreeAdded;
event.u.media_subitemtree_added.item = p_md;
/* Send the event */
libvlc_event_send( p_md->p_event_manager, &event );
}
/**************************************************************************
* input_item_meta_changed (Private) (vlc event Callback)
**************************************************************************/
static void input_item_meta_changed( const vlc_event_t *p_event,
void * user_data )
{
libvlc_media_t * p_md = user_data;
libvlc_event_t event;
/* Construct the event */
event.type = libvlc_MediaMetaChanged;
event.u.media_meta_changed.meta_type =
vlc_to_libvlc_meta[p_event->u.input_item_meta_changed.meta_type];
/* Send the event */
libvlc_event_send( p_md->p_event_manager, &event );
}
/**************************************************************************
* input_item_duration_changed (Private) (vlc event Callback)
**************************************************************************/
static void input_item_duration_changed( const vlc_event_t *p_event,
void * user_data )
{
libvlc_media_t * p_md = user_data;
libvlc_event_t event;
/* Construct the event */
event.type = libvlc_MediaDurationChanged;
event.u.media_duration_changed.new_duration =
from_mtime(p_event->u.input_item_duration_changed.new_duration);
/* Send the event */
libvlc_event_send( p_md->p_event_manager, &event );
}
/**************************************************************************
* input_item_preparsed_changed (Private) (vlc event Callback)
**************************************************************************/
static void input_item_preparsed_changed(const vlc_event_t *p_event,
void * user_data)
{
libvlc_media_t *media = user_data;
libvlc_event_t event;
/* Eventually notify libvlc_media_parse() */
vlc_mutex_lock(&media->parsed_lock);
media->is_parsed = true;
vlc_cond_broadcast(&media->parsed_cond);
vlc_mutex_unlock(&media->parsed_lock);
/* Construct the event */
event.type = libvlc_MediaParsedChanged;
event.u.media_parsed_changed.new_status =
p_event->u.input_item_preparsed_changed.new_status;
/* Send the event */
libvlc_event_send(media->p_event_manager, &event);
}
/**************************************************************************
* input_item_preparse_ended (Private) (vlc event Callback)
**************************************************************************/
static void input_item_preparse_ended( const vlc_event_t * p_event,
void * user_data )
{
VLC_UNUSED( p_event );
libvlc_media_t * p_md = user_data;
libvlc_media_list_t *p_subitems = media_get_subitems( p_md, false );
if( p_subitems != NULL )
{
/* notify the media list */
libvlc_media_list_lock( p_subitems );
libvlc_media_list_internal_end_reached( p_subitems );
libvlc_media_list_unlock( p_subitems );
}
}
/**************************************************************************
* Install event handler (Private)
**************************************************************************/
static void install_input_item_observer( libvlc_media_t *p_md )
{
vlc_event_attach( &p_md->p_input_item->event_manager,
vlc_InputItemSubItemAdded,
input_item_subitem_added,
p_md );
vlc_event_attach( &p_md->p_input_item->event_manager,
vlc_InputItemMetaChanged,
input_item_meta_changed,
p_md );
vlc_event_attach( &p_md->p_input_item->event_manager,
vlc_InputItemDurationChanged,
input_item_duration_changed,
p_md );
vlc_event_attach( &p_md->p_input_item->event_manager,
vlc_InputItemPreparsedChanged,
input_item_preparsed_changed,
p_md );
vlc_event_attach( &p_md->p_input_item->event_manager,
vlc_InputItemSubItemTreeAdded,
input_item_subitemtree_added,
p_md );
vlc_event_attach( &p_md->p_input_item->event_manager,
vlc_InputItemPreparseEnded,
input_item_preparse_ended,
p_md );
}
/**************************************************************************
* Uninstall event handler (Private)
**************************************************************************/
static void uninstall_input_item_observer( libvlc_media_t *p_md )
{
vlc_event_detach( &p_md->p_input_item->event_manager,
vlc_InputItemSubItemAdded,
input_item_subitem_added,
p_md );
vlc_event_detach( &p_md->p_input_item->event_manager,
vlc_InputItemMetaChanged,
input_item_meta_changed,
p_md );
vlc_event_detach( &p_md->p_input_item->event_manager,
vlc_InputItemDurationChanged,
input_item_duration_changed,
p_md );
vlc_event_detach( &p_md->p_input_item->event_manager,
vlc_InputItemPreparsedChanged,
input_item_preparsed_changed,
p_md );
vlc_event_detach( &p_md->p_input_item->event_manager,
vlc_InputItemSubItemTreeAdded,
input_item_subitemtree_added,
p_md );
vlc_event_detach( &p_md->p_input_item->event_manager,
vlc_InputItemPreparseEnded,
input_item_preparse_ended,
p_md );
}
/**************************************************************************
* Create a new media descriptor object from an input_item
* (libvlc internal)
* That's the generic constructor
**************************************************************************/
libvlc_media_t * libvlc_media_new_from_input_item(
libvlc_instance_t *p_instance,
input_item_t *p_input_item )
{
libvlc_media_t * p_md;
if (!p_input_item)
{
libvlc_printerr( "No input item given" );
return NULL;
}
p_md = calloc( 1, sizeof(libvlc_media_t) );
if( !p_md )
{
libvlc_printerr( "Not enough memory" );
return NULL;
}
p_md->p_libvlc_instance = p_instance;
p_md->p_input_item = p_input_item;
p_md->i_refcount = 1;
vlc_cond_init(&p_md->parsed_cond);
vlc_mutex_init(&p_md->parsed_lock);
vlc_mutex_init(&p_md->subitems_lock);
p_md->state = libvlc_NothingSpecial;
/* A media descriptor can be a playlist. When you open a playlist
* It can give a bunch of item to read. */
p_md->p_subitems = NULL;
p_md->p_event_manager = libvlc_event_manager_new( p_md, p_instance );
if( unlikely(p_md->p_event_manager == NULL) )
{
free(p_md);
return NULL;
}
libvlc_event_manager_t *em = p_md->p_event_manager;
libvlc_event_manager_register_event_type(em, libvlc_MediaMetaChanged);
libvlc_event_manager_register_event_type(em, libvlc_MediaSubItemAdded);
libvlc_event_manager_register_event_type(em, libvlc_MediaFreed);
libvlc_event_manager_register_event_type(em, libvlc_MediaDurationChanged);
libvlc_event_manager_register_event_type(em, libvlc_MediaStateChanged);
libvlc_event_manager_register_event_type(em, libvlc_MediaParsedChanged);
libvlc_event_manager_register_event_type(em, libvlc_MediaSubItemTreeAdded);
vlc_gc_incref( p_md->p_input_item );
install_input_item_observer( p_md );
return p_md;
}
/**************************************************************************
* Create a new media descriptor object
**************************************************************************/
libvlc_media_t *libvlc_media_new_location( libvlc_instance_t *p_instance,
const char * psz_mrl )
{
input_item_t * p_input_item;
libvlc_media_t * p_md;
p_input_item = input_item_New( psz_mrl, NULL );
if (!p_input_item)
{
libvlc_printerr( "Not enough memory" );
return NULL;
}
p_md = libvlc_media_new_from_input_item( p_instance, p_input_item );
/* The p_input_item is retained in libvlc_media_new_from_input_item */
vlc_gc_decref( p_input_item );
return p_md;
}
libvlc_media_t *libvlc_media_new_path( libvlc_instance_t *p_instance,
const char *path )
{
char *mrl = vlc_path2uri( path, NULL );
if( unlikely(mrl == NULL) )
{
libvlc_printerr( "%s", vlc_strerror_c(errno) );
return NULL;
}
libvlc_media_t *m = libvlc_media_new_location( p_instance, mrl );
free( mrl );
return m;
}
libvlc_media_t *libvlc_media_new_fd( libvlc_instance_t *p_instance, int fd )
{
char mrl[16];
snprintf( mrl, sizeof(mrl), "fd://%d", fd );
return libvlc_media_new_location( p_instance, mrl );
}
libvlc_media_t *libvlc_media_new_callbacks(libvlc_instance_t *p_instance,
libvlc_media_open_cb open_cb,
libvlc_media_read_cb read_cb,
libvlc_media_seek_cb seek_cb,
libvlc_media_close_cb close_cb,
void *opaque)
{
libvlc_media_t *m = libvlc_media_new_location(p_instance, "imem://");
if (unlikely(m == NULL))
return NULL;
assert(read_cb != NULL);
input_item_AddOpaque(m->p_input_item, "imem-data", opaque);
input_item_AddOpaque(m->p_input_item, "imem-open", open_cb);
input_item_AddOpaque(m->p_input_item, "imem-read", read_cb);
input_item_AddOpaque(m->p_input_item, "imem-seek", seek_cb);
input_item_AddOpaque(m->p_input_item, "imem-close", close_cb);
return m;
}
/**************************************************************************
* Create a new media descriptor object
**************************************************************************/
libvlc_media_t * libvlc_media_new_as_node( libvlc_instance_t *p_instance,
const char * psz_name )
{
input_item_t * p_input_item;
libvlc_media_t * p_md;
libvlc_media_list_t * p_subitems;
p_input_item = input_item_New( "vlc://nop", psz_name );
if (!p_input_item)
{
libvlc_printerr( "Not enough memory" );
return NULL;
}
p_md = libvlc_media_new_from_input_item( p_instance, p_input_item );
p_subitems = media_get_subitems( p_md, true );
if( p_subitems == NULL) {
libvlc_media_release( p_md );
return NULL;
}
return p_md;
}
/**************************************************************************
* Add an option to the media descriptor,
* that will be used to determine how the media_player will read the
* media. This allow to use VLC advanced reading/streaming
* options in a per-media basis
*
* The options are detailled in vlc --long-help, for instance "--sout-all"
**************************************************************************/
void libvlc_media_add_option( libvlc_media_t * p_md,
const char * psz_option )
{
libvlc_media_add_option_flag( p_md, psz_option,
VLC_INPUT_OPTION_UNIQUE|VLC_INPUT_OPTION_TRUSTED );
}
/**************************************************************************
* Same as libvlc_media_add_option but with configurable flags.
**************************************************************************/
void libvlc_media_add_option_flag( libvlc_media_t * p_md,
const char * ppsz_option,
unsigned i_flags )
{
input_item_AddOption( p_md->p_input_item, ppsz_option, i_flags );
}
/**************************************************************************
* Delete a media descriptor object
**************************************************************************/
void libvlc_media_release( libvlc_media_t *p_md )
{
if (!p_md)
return;
p_md->i_refcount--;
if( p_md->i_refcount > 0 )
return;
if( p_md->p_subitems )
libvlc_media_list_release( p_md->p_subitems );
uninstall_input_item_observer( p_md );
vlc_gc_decref( p_md->p_input_item );
vlc_cond_destroy( &p_md->parsed_cond );
vlc_mutex_destroy( &p_md->parsed_lock );
vlc_mutex_destroy( &p_md->subitems_lock );
/* Construct the event */
libvlc_event_t event;
event.type = libvlc_MediaFreed;
event.u.media_freed.md = p_md;
/* Send the event */
libvlc_event_send( p_md->p_event_manager, &event );
libvlc_event_manager_release( p_md->p_event_manager );
free( p_md );
}
/**************************************************************************
* Retain a media descriptor object
**************************************************************************/
void libvlc_media_retain( libvlc_media_t *p_md )
{
assert (p_md);
p_md->i_refcount++;
}
/**************************************************************************
* Duplicate a media descriptor object
**************************************************************************/
libvlc_media_t *
libvlc_media_duplicate( libvlc_media_t *p_md_orig )
{
return libvlc_media_new_from_input_item(
p_md_orig->p_libvlc_instance, p_md_orig->p_input_item );
}
/**************************************************************************
* Get mrl from a media descriptor object
**************************************************************************/
char *
libvlc_media_get_mrl( libvlc_media_t * p_md )
{
assert( p_md );
return input_item_GetURI( p_md->p_input_item );
}
/**************************************************************************
* Getter for meta information
**************************************************************************/
char *libvlc_media_get_meta( libvlc_media_t *p_md, libvlc_meta_t e_meta )
{
char *psz_meta = NULL;
if( e_meta == libvlc_meta_NowPlaying )
{
psz_meta = input_item_GetNowPlayingFb( p_md->p_input_item );
}
else
{
psz_meta = input_item_GetMeta( p_md->p_input_item,
libvlc_to_vlc_meta[e_meta] );
/* Should be integrated in core */
if( psz_meta == NULL && e_meta == libvlc_meta_Title
&& p_md->p_input_item->psz_name != NULL )
psz_meta = strdup( p_md->p_input_item->psz_name );
}
return psz_meta;
}
/**************************************************************************
* Setter for meta information
**************************************************************************/
void libvlc_media_set_meta( libvlc_media_t *p_md, libvlc_meta_t e_meta, const char *psz_value )
{
assert( p_md );
input_item_SetMeta( p_md->p_input_item, libvlc_to_vlc_meta[e_meta], psz_value );
}
int libvlc_media_save_meta( libvlc_media_t *p_md )
{
assert( p_md );
vlc_object_t *p_obj = VLC_OBJECT(p_md->p_libvlc_instance->p_libvlc_int);
return input_item_WriteMeta( p_obj, p_md->p_input_item ) == VLC_SUCCESS;
}
/**************************************************************************
* Getter for state information
* Can be error, playing, buffering, NothingSpecial.
**************************************************************************/
libvlc_state_t
libvlc_media_get_state( libvlc_media_t *p_md )
{
assert( p_md );
return p_md->state;
}
/**************************************************************************
* Setter for state information (LibVLC Internal)
**************************************************************************/
void
libvlc_media_set_state( libvlc_media_t *p_md,
libvlc_state_t state )
{
libvlc_event_t event;
p_md->state = state;
/* Construct the event */
event.type = libvlc_MediaStateChanged;
event.u.media_state_changed.new_state = state;
/* Send the event */
libvlc_event_send( p_md->p_event_manager, &event );
}
/**************************************************************************
* subitems
**************************************************************************/
libvlc_media_list_t *
libvlc_media_subitems( libvlc_media_t * p_md )
{
libvlc_media_list_t *p_subitems = media_get_subitems( p_md, true );
if( p_subitems )
libvlc_media_list_retain( p_subitems );
return p_subitems;
}
/**************************************************************************
* Getter for statistics information
**************************************************************************/
int libvlc_media_get_stats( libvlc_media_t *p_md,
libvlc_media_stats_t *p_stats )
{
if( !p_md->p_input_item )
return false;
input_stats_t *p_itm_stats = p_md->p_input_item->p_stats;
vlc_mutex_lock( &p_itm_stats->lock );
p_stats->i_read_bytes = p_itm_stats->i_read_bytes;
p_stats->f_input_bitrate = p_itm_stats->f_input_bitrate;
p_stats->i_demux_read_bytes = p_itm_stats->i_demux_read_bytes;
p_stats->f_demux_bitrate = p_itm_stats->f_demux_bitrate;
p_stats->i_demux_corrupted = p_itm_stats->i_demux_corrupted;
p_stats->i_demux_discontinuity = p_itm_stats->i_demux_discontinuity;
p_stats->i_decoded_video = p_itm_stats->i_decoded_video;
p_stats->i_decoded_audio = p_itm_stats->i_decoded_audio;
p_stats->i_displayed_pictures = p_itm_stats->i_displayed_pictures;
p_stats->i_lost_pictures = p_itm_stats->i_lost_pictures;
p_stats->i_played_abuffers = p_itm_stats->i_played_abuffers;
p_stats->i_lost_abuffers = p_itm_stats->i_lost_abuffers;
p_stats->i_sent_packets = p_itm_stats->i_sent_packets;
p_stats->i_sent_bytes = p_itm_stats->i_sent_bytes;
p_stats->f_send_bitrate = p_itm_stats->f_send_bitrate;
vlc_mutex_unlock( &p_itm_stats->lock );
return true;
}
/**************************************************************************
* event_manager
**************************************************************************/
libvlc_event_manager_t *
libvlc_media_event_manager( libvlc_media_t * p_md )
{
assert( p_md );
return p_md->p_event_manager;
}
/**************************************************************************
* Get duration of media object (in ms)
**************************************************************************/
int64_t
libvlc_media_get_duration( libvlc_media_t * p_md )
{
assert( p_md );
if( !p_md->p_input_item )
{
libvlc_printerr( "No input item" );
return -1;
}
if (!input_item_IsPreparsed( p_md->p_input_item ))
return -1;
return from_mtime(input_item_GetDuration( p_md->p_input_item ));
}
static int media_parse(libvlc_media_t *media, bool b_async,
libvlc_media_parse_flag_t parse_flag)
{
bool needed;
vlc_mutex_lock(&media->parsed_lock);
needed = !media->has_asked_preparse;
media->has_asked_preparse = true;
vlc_mutex_unlock(&media->parsed_lock);
if (needed)
{
libvlc_int_t *libvlc = media->p_libvlc_instance->p_libvlc_int;
input_item_t *item = media->p_input_item;
input_item_meta_request_option_t art_scope = META_REQUEST_OPTION_NONE;
input_item_meta_request_option_t parse_scope = META_REQUEST_OPTION_SCOPE_LOCAL;
int ret;
if (parse_flag & libvlc_media_fetch_local)
art_scope |= META_REQUEST_OPTION_SCOPE_LOCAL;
if (parse_flag & libvlc_media_fetch_network)
art_scope |= META_REQUEST_OPTION_SCOPE_NETWORK;
if (art_scope != META_REQUEST_OPTION_NONE) {
ret = libvlc_ArtRequest(libvlc, item, art_scope);
if (ret != VLC_SUCCESS)
return ret;
}
if (parse_flag & libvlc_media_parse_network)
parse_scope |= META_REQUEST_OPTION_SCOPE_NETWORK;
ret = libvlc_MetaRequest(libvlc, item, parse_scope);
if (ret != VLC_SUCCESS)
return ret;
}
else
return VLC_EGENERIC;
if (!b_async)
{
vlc_mutex_lock(&media->parsed_lock);
while (!media->is_parsed)
vlc_cond_wait(&media->parsed_cond, &media->parsed_lock);
vlc_mutex_unlock(&media->parsed_lock);
}
return VLC_SUCCESS;
}
/**************************************************************************
* Parse the media and wait.
**************************************************************************/
void
libvlc_media_parse(libvlc_media_t *media)
{
media_parse( media, false, libvlc_media_fetch_local );
}
/**************************************************************************
* Parse the media but do not wait.
**************************************************************************/
void
libvlc_media_parse_async(libvlc_media_t *media)
{
media_parse( media, true, libvlc_media_fetch_local );
}
/**************************************************************************
* Parse the media asynchronously with options.
**************************************************************************/
int
libvlc_media_parse_with_options( libvlc_media_t *media,
libvlc_media_parse_flag_t parse_flag )
{
return media_parse( media, true, parse_flag ) == VLC_SUCCESS ? 0 : -1;
}
/**************************************************************************
* Get parsed status for media object.
**************************************************************************/
int
libvlc_media_is_parsed(libvlc_media_t *media)
{
bool parsed;
vlc_mutex_lock(&media->parsed_lock);
parsed = media->is_parsed;
vlc_mutex_unlock(&media->parsed_lock);
return parsed;
}
/**************************************************************************
* Sets media descriptor's user_data. user_data is specialized data
* accessed by the host application, VLC.framework uses it as a pointer to
* an native object that references a libvlc_media_t pointer
**************************************************************************/
void
libvlc_media_set_user_data( libvlc_media_t * p_md, void * p_new_user_data )
{
assert( p_md );
p_md->p_user_data = p_new_user_data;
}
/**************************************************************************
* Get media descriptor's user_data. user_data is specialized data
* accessed by the host application, VLC.framework uses it as a pointer to
* an native object that references a libvlc_media_t pointer
**************************************************************************/
void *
libvlc_media_get_user_data( libvlc_media_t * p_md )
{
assert( p_md );
return p_md->p_user_data;
}
/**************************************************************************
* Get media descriptor's elementary streams description
**************************************************************************/
int
libvlc_media_get_tracks_info( libvlc_media_t *p_md, libvlc_media_track_info_t ** pp_es )
{
assert( p_md );
input_item_t *p_input_item = p_md->p_input_item;
vlc_mutex_lock( &p_input_item->lock );
const int i_es = p_input_item->i_es;
*pp_es = (i_es > 0) ? malloc( i_es * sizeof(libvlc_media_track_info_t) ) : NULL;
if( !*pp_es ) /* no ES, or OOM */
{
vlc_mutex_unlock( &p_input_item->lock );
return 0;
}
/* Fill array */
for( int i = 0; i < i_es; i++ )
{
libvlc_media_track_info_t *p_mes = *pp_es+i;
const es_format_t *p_es = p_input_item->es[i];
p_mes->i_codec = p_es->i_codec;
p_mes->i_id = p_es->i_id;
p_mes->i_profile = p_es->i_profile;
p_mes->i_level = p_es->i_level;
switch(p_es->i_cat)
{
case UNKNOWN_ES:
default:
p_mes->i_type = libvlc_track_unknown;
break;
case VIDEO_ES:
p_mes->i_type = libvlc_track_video;
p_mes->u.video.i_height = p_es->video.i_height;
p_mes->u.video.i_width = p_es->video.i_width;
break;
case AUDIO_ES:
p_mes->i_type = libvlc_track_audio;
p_mes->u.audio.i_channels = p_es->audio.i_channels;
p_mes->u.audio.i_rate = p_es->audio.i_rate;
break;
case SPU_ES:
p_mes->i_type = libvlc_track_text;
break;
}
}
vlc_mutex_unlock( &p_input_item->lock );
return i_es;
}
unsigned
libvlc_media_tracks_get( libvlc_media_t *p_md, libvlc_media_track_t *** pp_es )
{
assert( p_md );
input_item_t *p_input_item = p_md->p_input_item;
vlc_mutex_lock( &p_input_item->lock );
const int i_es = p_input_item->i_es;
*pp_es = (i_es > 0) ? calloc( i_es, sizeof(**pp_es) ) : NULL;
if( !*pp_es ) /* no ES, or OOM */
{
vlc_mutex_unlock( &p_input_item->lock );
return 0;
}
/* Fill array */
for( int i = 0; i < i_es; i++ )
{
libvlc_media_track_t *p_mes = calloc( 1, sizeof(*p_mes) );
if ( p_mes )
{
p_mes->audio = malloc( __MAX(__MAX(sizeof(*p_mes->audio),
sizeof(*p_mes->video)),
sizeof(*p_mes->subtitle)) );
}
if ( !p_mes || !p_mes->audio )
{
libvlc_media_tracks_release( *pp_es, i_es );
*pp_es = NULL;
free( p_mes );
vlc_mutex_unlock( &p_input_item->lock );
return 0;
}
(*pp_es)[i] = p_mes;
const es_format_t *p_es = p_input_item->es[i];
p_mes->i_codec = p_es->i_codec;
p_mes->i_original_fourcc = p_es->i_original_fourcc;
p_mes->i_id = p_es->i_id;
p_mes->i_profile = p_es->i_profile;
p_mes->i_level = p_es->i_level;
p_mes->i_bitrate = p_es->i_bitrate;
p_mes->psz_language = p_es->psz_language != NULL ? strdup(p_es->psz_language) : NULL;
p_mes->psz_description = p_es->psz_description != NULL ? strdup(p_es->psz_description) : NULL;
switch(p_es->i_cat)
{
case UNKNOWN_ES:
default:
p_mes->i_type = libvlc_track_unknown;
break;
case VIDEO_ES:
p_mes->i_type = libvlc_track_video;
p_mes->video->i_height = p_es->video.i_height;
p_mes->video->i_width = p_es->video.i_width;
p_mes->video->i_sar_num = p_es->video.i_sar_num;
p_mes->video->i_sar_den = p_es->video.i_sar_den;
p_mes->video->i_frame_rate_num = p_es->video.i_frame_rate;
p_mes->video->i_frame_rate_den = p_es->video.i_frame_rate_base;
break;
case AUDIO_ES:
p_mes->i_type = libvlc_track_audio;
p_mes->audio->i_channels = p_es->audio.i_channels;
p_mes->audio->i_rate = p_es->audio.i_rate;
break;
case SPU_ES:
p_mes->i_type = libvlc_track_text;
p_mes->subtitle->psz_encoding = p_es->subs.psz_encoding != NULL ?
strdup(p_es->subs.psz_encoding) : NULL;
break;
}
}
vlc_mutex_unlock( &p_input_item->lock );
return i_es;
}
/**************************************************************************
* Get codec description from media elementary stream
**************************************************************************/
const char *
libvlc_media_get_codec_description( libvlc_track_type_t i_type,
uint32_t i_codec )
{
switch( i_type )
{
case libvlc_track_audio:
return vlc_fourcc_GetDescription( AUDIO_ES, i_codec );
case libvlc_track_video:
return vlc_fourcc_GetDescription( VIDEO_ES, i_codec );
case libvlc_track_text:
return vlc_fourcc_GetDescription( SPU_ES, i_codec );
case libvlc_track_unknown:
default:
return vlc_fourcc_GetDescription( UNKNOWN_ES, i_codec );
}
}
/**************************************************************************
* Release media descriptor's elementary streams description array
**************************************************************************/
void libvlc_media_tracks_release( libvlc_media_track_t **p_tracks, unsigned i_count )
{
for( unsigned i = 0; i < i_count; ++i )
{
if ( !p_tracks[i] )
continue;
free( p_tracks[i]->psz_language );
free( p_tracks[i]->psz_description );
switch( p_tracks[i]->i_type )
{
case libvlc_track_audio:
break;
case libvlc_track_video:
break;
case libvlc_track_text:
free( p_tracks[i]->subtitle->psz_encoding );
break;
case libvlc_track_unknown:
default:
break;
}
free( p_tracks[i]->audio );
free( p_tracks[i] );
}
free( p_tracks );
}
/**************************************************************************
* Get the media type of the media descriptor object
**************************************************************************/
libvlc_media_type_t libvlc_media_get_type( libvlc_media_t *p_md )
{
assert( p_md );
int i_type;
input_item_t *p_input_item = p_md->p_input_item;
vlc_mutex_lock( &p_input_item->lock );
i_type = p_md->p_input_item->i_type;
vlc_mutex_unlock( &p_input_item->lock );
switch( i_type )
{
case ITEM_TYPE_FILE:
return libvlc_media_type_file;
case ITEM_TYPE_NODE:
case ITEM_TYPE_DIRECTORY:
return libvlc_media_type_directory;
case ITEM_TYPE_DISC:
return libvlc_media_type_disc;
case ITEM_TYPE_STREAM:
return libvlc_media_type_stream;
case ITEM_TYPE_PLAYLIST:
return libvlc_media_type_playlist;
default:
return libvlc_media_type_unknown;
}
}
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