/*****************************************************************************
* media_list_player.c: libvlc new API media_list player functions
*****************************************************************************
* Copyright (C) 2007 the VideoLAN team
* $Id$
*
* 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 General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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.
*****************************************************************************/
#include "libvlc_internal.h"
#include <vlc/libvlc.h>
#include "media_list_path.h"
/*
* Private functions
*/
/**************************************************************************
* get_next_index (private)
*
* Simple next item fetcher.
**************************************************************************/
static libvlc_media_list_path_t
get_next_path( libvlc_media_list_player_t * p_mlp )
{
/* We are entered with libvlc_media_list_lock( p_mlp->p_list ) */
libvlc_media_list_path_t ret;
libvlc_media_list_t * p_parent_of_playing_item;
libvlc_media_list_t * p_sublist_of_playing_item;
if ( !p_mlp->current_playing_item_path )
{
if( !libvlc_media_list_count( p_mlp->p_mlist, NULL ) )
return NULL;
return libvlc_media_list_path_with_root_index(0);
}
p_sublist_of_playing_item = libvlc_media_list_sublist_at_path(
p_mlp->p_mlist,
p_mlp->current_playing_item_path );
/* If item just gained a sublist just play it */
if( p_sublist_of_playing_item )
{
libvlc_media_list_release( p_sublist_of_playing_item );
return libvlc_media_list_path_copy_by_appending( p_mlp->current_playing_item_path, 0 );
}
/* Try to catch next element */
p_parent_of_playing_item = libvlc_media_list_parentlist_at_path(
p_mlp->p_mlist,
p_mlp->current_playing_item_path );
int deepness = libvlc_media_list_path_deepness( p_mlp->current_playing_item_path );
if( deepness < 1 || !p_parent_of_playing_item )
return NULL;
ret = libvlc_media_list_path_copy( p_mlp->current_playing_item_path );
while( ret[deepness-1] >= libvlc_media_list_count( p_parent_of_playing_item, NULL ) )
{
deepness--;
if( deepness <= 0 )
{
free( ret );
libvlc_media_list_release( p_parent_of_playing_item );
return NULL;
}
ret[deepness] = -1;
ret[deepness-1]++;
p_parent_of_playing_item = libvlc_media_list_parentlist_at_path(
p_mlp->p_mlist,
ret );
}
libvlc_media_list_release( p_parent_of_playing_item );
return ret;
}
/**************************************************************************
* media_player_reached_end (private) (Event Callback)
**************************************************************************/
static void
media_player_reached_end( const libvlc_event_t * p_event,
void * p_user_data )
{
libvlc_media_list_player_t * p_mlp = p_user_data;
libvlc_media_player_t * p_mi = p_event->p_obj;
libvlc_media_t *p_md, * p_current_md;
p_md = libvlc_media_player_get_media( p_mi, NULL );
/* XXX: need if p_mlp->p_current_playing_index is beyond */
p_current_md = libvlc_media_list_item_at_path(
p_mlp->p_mlist,
p_mlp->current_playing_item_path );
if( p_md != p_current_md )
{
msg_Warn( p_mlp->p_libvlc_instance->p_libvlc_int,
"We are not sync-ed with the media instance" );
libvlc_media_release( p_md );
libvlc_media_release( p_current_md );
return;
}
libvlc_media_release( p_md );
libvlc_media_release( p_current_md );
libvlc_media_list_player_next( p_mlp, NULL );
}
/**************************************************************************
* playlist_item_deleted (private) (Event Callback)
**************************************************************************/
static void
mlist_item_deleted( const libvlc_event_t * p_event, void * p_user_data )
{
libvlc_media_t * p_current_md;
libvlc_media_list_player_t * p_mlp = p_user_data;
libvlc_media_list_t * p_emitting_mlist = p_event->p_obj;
/* XXX: need if p_mlp->p_current_playing_index is beyond */
p_current_md = libvlc_media_list_item_at_path(
p_mlp->p_mlist,
p_mlp->current_playing_item_path );
if( p_event->u.media_list_item_deleted.item == p_current_md &&
p_emitting_mlist == p_mlp->p_mlist )
{
/* We are playing this item, we choose to stop */
libvlc_media_list_player_stop( p_mlp, NULL );
}
}
/**************************************************************************
* install_playlist_observer (private)
**************************************************************************/
static void
install_playlist_observer( libvlc_media_list_player_t * p_mlp )
{
libvlc_event_attach( libvlc_media_list_event_manager( p_mlp->p_mlist, NULL ),
libvlc_MediaListItemDeleted, mlist_item_deleted, p_mlp, NULL );
}
/**************************************************************************
* uninstall_playlist_observer (private)
**************************************************************************/
static void
uninstall_playlist_observer( libvlc_media_list_player_t * p_mlp )
{
if ( !p_mlp->p_mlist )
{
return;
}
libvlc_event_detach( libvlc_media_list_event_manager( p_mlp->p_mlist, NULL ),
libvlc_MediaListItemDeleted, mlist_item_deleted, p_mlp, NULL );
}
/**************************************************************************
* install_media_player_observer (private)
**************************************************************************/
static void
install_media_player_observer( libvlc_media_list_player_t * p_mlp )
{
libvlc_event_attach( libvlc_media_player_event_manager( p_mlp->p_mi, NULL ),
libvlc_MediaPlayerEndReached,
media_player_reached_end, p_mlp, NULL );
}
/**************************************************************************
* uninstall_media_player_observer (private)
**************************************************************************/
static void
uninstall_media_player_observer( libvlc_media_list_player_t * p_mlp )
{
if ( !p_mlp->p_mi )
{
return;
}
libvlc_event_detach( libvlc_media_player_event_manager( p_mlp->p_mi, NULL ),
libvlc_MediaPlayerEndReached,
media_player_reached_end, p_mlp, NULL );
}
/**************************************************************************
* set_current_playing_item (private)
*
* Playlist lock should be held
**************************************************************************/
static void
set_current_playing_item( libvlc_media_list_player_t * p_mlp,
libvlc_media_list_path_t path,
libvlc_exception_t * p_e )
{
VLC_UNUSED(p_e);
libvlc_media_t * p_md;
p_md = libvlc_media_list_item_at_path( p_mlp->p_mlist, path );
vlc_mutex_lock( &p_mlp->object_lock );
if( p_mlp->current_playing_item_path != path )
{
free( p_mlp->current_playing_item_path );
p_mlp->current_playing_item_path = path;
}
if( !p_md )
{
vlc_mutex_unlock( &p_mlp->object_lock );
return;
}
/* We are not interested in getting media stop event now */
uninstall_media_player_observer( p_mlp );
if ( !p_mlp->p_mi )
{
p_mlp->p_mi = libvlc_media_player_new_from_media(p_md, p_e);
}
if( p_md->p_subitems && libvlc_media_list_count( p_md->p_subitems, NULL ) > 0 )
{
libvlc_media_t * p_submd;
p_submd = libvlc_media_list_item_at_index( p_md->p_subitems, 0, NULL );
libvlc_media_player_set_media( p_mlp->p_mi, p_submd, NULL );
libvlc_media_release( p_submd );
}
else
libvlc_media_player_set_media( p_mlp->p_mi, p_md, NULL );
// wait_playing_state(); /* If we want to be synchronous */
install_media_player_observer( p_mlp );
vlc_mutex_unlock( &p_mlp->object_lock );
libvlc_media_release( p_md ); /* for libvlc_media_list_item_at_index */
}
/*
* Public libvlc functions
*/
/**************************************************************************
* new (Public)
**************************************************************************/
libvlc_media_list_player_t *
libvlc_media_list_player_new( libvlc_instance_t * p_instance,
libvlc_exception_t * p_e )
{
(void)p_e;
libvlc_media_list_player_t * p_mlp;
p_mlp = malloc(sizeof(libvlc_media_list_player_t));
if( !p_mlp )
return NULL;
p_mlp->current_playing_item_path = NULL;
p_mlp->p_mi = NULL;
p_mlp->p_mlist = NULL;
vlc_mutex_init( &p_mlp->object_lock );
p_mlp->p_event_manager = libvlc_event_manager_new( p_mlp,
p_instance,
p_e );
libvlc_event_manager_register_event_type( p_mlp->p_event_manager,
libvlc_MediaListPlayerNextItemSet, p_e );
return p_mlp;
}
/**************************************************************************
* release (Public)
**************************************************************************/
void libvlc_media_list_player_release( libvlc_media_list_player_t * p_mlp )
{
free(p_mlp);
}
/**************************************************************************
* set_media_player (Public)
**************************************************************************/
void libvlc_media_list_player_set_media_player(
libvlc_media_list_player_t * p_mlp,
libvlc_media_player_t * p_mi,
libvlc_exception_t * p_e )
{
VLC_UNUSED(p_e);
vlc_mutex_lock( &p_mlp->object_lock );
if( p_mlp->p_mi )
{
uninstall_media_player_observer( p_mlp );
libvlc_media_player_release( p_mlp->p_mi );
}
libvlc_media_player_retain( p_mi );
p_mlp->p_mi = p_mi;
install_media_player_observer( p_mlp );
vlc_mutex_unlock( &p_mlp->object_lock );
}
/**************************************************************************
* set_media_list (Public)
**************************************************************************/
void libvlc_media_list_player_set_media_list(
libvlc_media_list_player_t * p_mlp,
libvlc_media_list_t * p_mlist,
libvlc_exception_t * p_e )
{
vlc_mutex_lock( &p_mlp->object_lock );
if( libvlc_media_list_player_is_playing( p_mlp, p_e ) )
{
libvlc_media_player_stop( p_mlp->p_mi, p_e );
/* Don't bother if there was an error. */
libvlc_exception_clear( p_e );
}
if( p_mlp->p_mlist )
{
uninstall_playlist_observer( p_mlp );
libvlc_media_list_release( p_mlp->p_mlist );
}
libvlc_media_list_retain( p_mlist );
p_mlp->p_mlist = p_mlist;
install_playlist_observer( p_mlp );
vlc_mutex_unlock( &p_mlp->object_lock );
}
/**************************************************************************
* Play (Public)
**************************************************************************/
void libvlc_media_list_player_play( libvlc_media_list_player_t * p_mlp,
libvlc_exception_t * p_e )
{
if( !p_mlp->current_playing_item_path )
{
libvlc_media_list_player_next( p_mlp, p_e );
return; /* Will set to play */
}
libvlc_media_player_play( p_mlp->p_mi, p_e );
}
/**************************************************************************
* Pause (Public)
**************************************************************************/
void libvlc_media_list_player_pause( libvlc_media_list_player_t * p_mlp,
libvlc_exception_t * p_e )
{
if( !p_mlp->p_mi )
return;
libvlc_media_player_pause( p_mlp->p_mi, p_e );
}
/**************************************************************************
* is_playing (Public)
**************************************************************************/
int
libvlc_media_list_player_is_playing( libvlc_media_list_player_t * p_mlp,
libvlc_exception_t * p_e )
{
libvlc_state_t state = libvlc_media_player_get_state( p_mlp->p_mi, p_e );
return (state == libvlc_Opening) || (state == libvlc_Buffering) ||
(state == libvlc_Forward) || (state == libvlc_Backward) ||
(state == libvlc_Playing);
}
/**************************************************************************
* State (Public)
**************************************************************************/
libvlc_state_t
libvlc_media_list_player_get_state( libvlc_media_list_player_t * p_mlp,
libvlc_exception_t * p_e )
{
if( !p_mlp->p_mi )
return libvlc_Ended;
return libvlc_media_player_get_state( p_mlp->p_mi, p_e );
}
/**************************************************************************
* Play item at index (Public)
**************************************************************************/
void libvlc_media_list_player_play_item_at_index(
libvlc_media_list_player_t * p_mlp,
int i_index,
libvlc_exception_t * p_e )
{
set_current_playing_item( p_mlp, libvlc_media_list_path_with_root_index(i_index), p_e );
if( libvlc_exception_raised( p_e ) )
return;
/* Send the next item event */
libvlc_event_t event;
event.type = libvlc_MediaListPlayerNextItemSet;
libvlc_event_send( p_mlp->p_event_manager, &event );
libvlc_media_player_play( p_mlp->p_mi, p_e );
}
/**************************************************************************
* Play item (Public)
**************************************************************************/
void libvlc_media_list_player_play_item(
libvlc_media_list_player_t * p_mlp,
libvlc_media_t * p_md,
libvlc_exception_t * p_e )
{
libvlc_media_list_path_t path = libvlc_media_list_path_of_item( p_mlp->p_mlist, p_md );
if( !path )
{
libvlc_exception_raise( p_e, "No such item in media list" );
return;
}
set_current_playing_item( p_mlp, path, p_e );
if( libvlc_exception_raised( p_e ) )
return;
libvlc_media_player_play( p_mlp->p_mi, p_e );
}
/**************************************************************************
* Stop (Public)
**************************************************************************/
void libvlc_media_list_player_stop( libvlc_media_list_player_t * p_mlp,
libvlc_exception_t * p_e )
{
if ( p_mlp->p_mi )
{
/* We are not interested in getting media stop event now */
uninstall_media_player_observer( p_mlp );
libvlc_media_player_stop( p_mlp->p_mi, p_e );
install_media_player_observer( p_mlp );
}
vlc_mutex_lock( &p_mlp->object_lock );
free( p_mlp->current_playing_item_path );
p_mlp->current_playing_item_path = NULL;
vlc_mutex_unlock( &p_mlp->object_lock );
}
/**************************************************************************
* Next (Public)
**************************************************************************/
void libvlc_media_list_player_next( libvlc_media_list_player_t * p_mlp,
libvlc_exception_t * p_e )
{
libvlc_media_list_path_t path;
if (! p_mlp->p_mlist )
{
libvlc_exception_raise( p_e, "No more element to play" );
return;
}
libvlc_media_list_lock( p_mlp->p_mlist );
path = get_next_path( p_mlp );
if( !path )
{
libvlc_media_list_unlock( p_mlp->p_mlist );
libvlc_exception_raise( p_e, "No more element to play" );
libvlc_media_list_player_stop( p_mlp, p_e );
return;
}
set_current_playing_item( p_mlp, path, p_e );
libvlc_media_player_play( p_mlp->p_mi, p_e );
libvlc_media_list_unlock( p_mlp->p_mlist );
/* Send the next item event */
libvlc_event_t event;
event.type = libvlc_MediaListPlayerNextItemSet;
libvlc_event_send( p_mlp->p_event_manager, &event);
}
