* Get current video track.
*
* \param p_mi media player
- * \return the video track (int) or -1 if none
+ * \return the video track ID (int) or -1 if no active input
*/
LIBVLC_API int libvlc_video_get_track( libvlc_media_player_t *p_mi );
* Set video track.
*
* \param p_mi media player
- * \param i_track the track (int)
+ * \param i_track the track ID (i_id field from track description)
* \return 0 on success, -1 if out of range
*/
LIBVLC_API
* Get current audio track.
*
* \param p_mi media player
- * \return the audio track (int), or -1 if none.
+ * \return the audio track ID or -1 if no active input.
*/
LIBVLC_API int libvlc_audio_get_track( libvlc_media_player_t *p_mi );
* Set current audio track.
*
* \param p_mi media player
- * \param i_track the track (int)
+ * \param i_track the track ID (i_id field from track description)
* \return 0 on success, -1 on error
*/
LIBVLC_API int libvlc_audio_set_track( libvlc_media_player_t *p_mi, int i_track );
int libvlc_audio_get_track( libvlc_media_player_t *p_mi )
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
- vlc_value_t val_list;
- vlc_value_t val;
- int i_track = -1;
- int i;
-
if( !p_input_thread )
return -1;
- if( var_Get( p_input_thread, "audio-es", &val ) < 0 )
- {
- vlc_object_release( p_input_thread );
- libvlc_printerr( "Audio track information not found" );
- return -1;
- }
-
- var_Change( p_input_thread, "audio-es", VLC_VAR_GETCHOICES, &val_list, NULL );
- for( i = 0; i < val_list.p_list->i_count; i++ )
- {
- if( val_list.p_list->p_values[i].i_int == val.i_int )
- {
- i_track = i;
- break;
- }
- }
- var_FreeList( &val_list, NULL );
+ int id = var_GetInteger( p_input_thread, "audio-es" );
vlc_object_release( p_input_thread );
- return i_track;
+ return id;
}
/*****************************************************************************
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
vlc_value_t val_list;
- vlc_value_t newval;
int i_ret;
if( !p_input_thread )
return -1;
var_Change( p_input_thread, "audio-es", VLC_VAR_GETCHOICES, &val_list, NULL );
- if( (i_track < 0) || (i_track > val_list.p_list->i_count) )
+ for( int i = 0; i < val_list.p_list->i_count; i++ )
{
- libvlc_printerr( "Audio track out of range" );
- i_ret = -1;
- goto end;
- }
-
- newval = val_list.p_list->p_values[i_track];
- i_ret = var_Set( p_input_thread, "audio-es", newval );
- if( i_ret < 0 )
- {
- libvlc_printerr( "Audio track out of range" ); /* Race... */
- i_ret = -1;
- goto end;
+ if( i_track == val_list.p_list->p_values[i].i_int )
+ {
+ if( var_SetInteger( p_input_thread, "audio-es", i_track ) < 0 )
+ break;
+ i_ret = 0;
+ goto end;
+ }
}
- i_ret = 0;
-
+ libvlc_printerr( "Track identifier not found" );
end:
var_FreeList( &val_list, NULL );
vlc_object_release( p_input_thread );
int libvlc_video_get_track( libvlc_media_player_t *p_mi )
{
input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi );
- vlc_value_t val_list;
- vlc_value_t val;
- int i_track = -1;
if( !p_input_thread )
return -1;
- if( var_Get( p_input_thread, "video-es", &val ) < 0 )
- {
- libvlc_printerr( "Video track information not found" );
- vlc_object_release( p_input_thread );
- return -1;
- }
-
- var_Change( p_input_thread, "video-es", VLC_VAR_GETCHOICES, &val_list, NULL );
- for( int i = 0; i < val_list.p_list->i_count; i++ )
- {
- if( val_list.p_list->p_values[i].i_int == val.i_int )
- {
- i_track = i;
- break;
- }
- }
- var_FreeList( &val_list, NULL );
+ int id = var_GetInteger( p_input_thread, "video-es" );
vlc_object_release( p_input_thread );
- return i_track;
+ return id;
}
int libvlc_video_set_track( libvlc_media_player_t *p_mi, int i_track )
goto end;
}
}
- libvlc_printerr( "Video track number out of range" );
+ libvlc_printerr( "Track identifier not found" );
end:
var_FreeList( &val_list, NULL );
vlc_object_release( p_input_thread );