* engine.c : Run the playlist and handle its control
*****************************************************************************
* Copyright (C) 1999-2004 the VideoLAN team
- * $Id: /local/vlc/0.8.6-playlist-vlm/src/playlist/playlist.c 13741 2006-03-21T19:29:39.792444Z zorglub $
+ * $Id$
*
* Authors: Samuel Hocevar <sam@zoy.org>
* Clément Stenac <zorglub@videolan.org>
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
+
#include <vlc/vlc.h>
#include <vlc/vout.h>
#include <vlc/sout.h>
#include <vlc/input.h>
#include "vlc_playlist.h"
#include "vlc_interaction.h"
+#include "playlist_internal.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static void VariablesInit( playlist_t *p_playlist );
+static int RandomCallback( vlc_object_t *p_this, char const *psz_cmd,
+ vlc_value_t oldval, vlc_value_t newval, void *a )
+{
+ ((playlist_t*)p_this)->b_reset_currently_playing = VLC_TRUE;
+ playlist_Signal( ((playlist_t*)p_this) );
+ return VLC_SUCCESS;
+}
+
/**
* Create playlist
*
playlist_t * playlist_Create( vlc_object_t *p_parent )
{
playlist_t *p_playlist;
+ vlc_bool_t b_save;
int i_tree;
/* Allocate structure */
msg_Err( p_parent, "out of memory" );
return NULL;
}
+ p_parent->p_libvlc->p_playlist = p_playlist;
VariablesInit( p_playlist );
p_playlist->i_last_input_id = 0;
p_playlist->p_input = NULL;
- p_playlist->i_vout_destroyed_date = 0;
- p_playlist->i_sout_destroyed_date = 0;
+ p_playlist->gc_date = 0;
+ p_playlist->b_cant_sleep = VLC_FALSE;
- p_playlist->i_size = 0;
- p_playlist->pp_items = NULL;
- p_playlist->i_all_size = 0;
- p_playlist->pp_all_items = NULL;
+ ARRAY_INIT( p_playlist->items );
+ ARRAY_INIT( p_playlist->all_items );
+ ARRAY_INIT( p_playlist->input_items );
+ ARRAY_INIT( p_playlist->current );
- p_playlist->i_input_items = 0;
- p_playlist->pp_input_items = NULL;
-
- p_playlist->i_random = 0;
- p_playlist->pp_random = NULL;
- p_playlist->i_random_index = 0;
- p_playlist->b_reset_random = VLC_TRUE;
+ p_playlist->i_current_index = 0;
+ p_playlist->b_reset_currently_playing = VLC_TRUE;
+ p_playlist->last_rebuild_date = 0;
i_tree = var_CreateGetBool( p_playlist, "playlist-tree" );
p_playlist->b_always_tree = (i_tree == 1);
p_playlist->b_never_tree = (i_tree == 2);
+ p_playlist->b_doing_ml = VLC_FALSE;
+
+ p_playlist->b_auto_preparse =
+ var_CreateGetBool( p_playlist, "auto-preparse") ;
+
p_playlist->p_root_category = playlist_NodeCreate( p_playlist, NULL, NULL);
p_playlist->p_root_onelevel = playlist_NodeCreate( p_playlist, NULL, NULL);
+ if( !p_playlist->p_root_category || !p_playlist->p_root_onelevel )
+ return NULL;
+
/* Create playlist and media library */
p_playlist->p_local_category = playlist_NodeCreate( p_playlist,
_( "Playlist" ),p_playlist->p_root_category );
p_playlist->p_local_category->i_flags |= PLAYLIST_RO_FLAG;
p_playlist->p_local_onelevel->i_flags |= PLAYLIST_RO_FLAG;
+ if( !p_playlist->p_local_category || !p_playlist->p_local_onelevel ||
+ !p_playlist->p_local_category->p_input ||
+ !p_playlist->p_local_onelevel->p_input )
+ return NULL;
+
/* Link the nodes together. Todo: actually create them from the same input*/
p_playlist->p_local_onelevel->p_input->i_id =
p_playlist->p_local_category->p_input->i_id;
_( "Media Library" ), p_playlist->p_root_category );
p_playlist->p_ml_onelevel = playlist_NodeCreate( p_playlist,
_( "Media Library" ), p_playlist->p_root_onelevel );
+
+ if(!p_playlist->p_ml_category || !p_playlist->p_ml_onelevel)
+ return NULL;
+
p_playlist->p_ml_category->i_flags |= PLAYLIST_RO_FLAG;
p_playlist->p_ml_onelevel->i_flags |= PLAYLIST_RO_FLAG;
p_playlist->p_ml_onelevel->p_input->i_id =
p_playlist->p_ml_category->p_input->i_id;
+
}
else
{
/* Initial status */
p_playlist->status.p_item = NULL;
- p_playlist->status.p_node = p_playlist->p_root_onelevel;
+ p_playlist->status.p_node = p_playlist->p_local_onelevel;
p_playlist->request.b_request = VLC_FALSE;
p_playlist->status.i_status = PLAYLIST_STOPPED;
p_playlist->i_order = ORDER_NORMAL;
vlc_object_attach( p_playlist, p_parent );
+ b_save = p_playlist->b_auto_preparse;
+ p_playlist->b_auto_preparse = VLC_FALSE;
+ playlist_MLLoad( p_playlist );
+ p_playlist->b_auto_preparse = VLC_TRUE;
return p_playlist;
}
playlist_ServicesDiscoveryRemove( p_playlist,
p_playlist->pp_sds[0]->psz_module );
}
+
+ playlist_MLDump( p_playlist );
+
vlc_thread_join( p_playlist->p_preparse );
+ vlc_thread_join( p_playlist->p_fetcher );
vlc_thread_join( p_playlist );
vlc_object_detach( p_playlist->p_preparse );
+ vlc_object_detach( p_playlist->p_fetcher );
var_Destroy( p_playlist, "intf-change" );
var_Destroy( p_playlist, "item-change" );
var_Destroy( p_playlist, "activity" );
PL_LOCK;
- playlist_NodeDelete( p_playlist, p_playlist->p_root_category, VLC_TRUE,
- VLC_TRUE );
- playlist_NodeDelete( p_playlist, p_playlist->p_root_onelevel, VLC_TRUE,
- VLC_TRUE );
+ /* Go through all items, and simply free everything without caring
+ * about the tree structure. Do not decref, it will be done by doing
+ * the same thing on the input items array */
+ FOREACH_ARRAY( playlist_item_t *p_del, p_playlist->all_items )
+ free( p_del->pp_children );
+ free( p_del );
+ FOREACH_END();
+ ARRAY_RESET( p_playlist->all_items );
+
+ FOREACH_ARRAY( input_item_t *p_del, p_playlist->input_items )
+ input_ItemClean( p_del );
+ free( p_del );
+ FOREACH_END();
+ ARRAY_RESET( p_playlist->input_items );
+
+ ARRAY_RESET( p_playlist->items );
+ ARRAY_RESET( p_playlist->current );
+
PL_UNLOCK;
if( p_playlist->p_stats )
vlc_mutex_destroy( &p_playlist->gc_lock );
vlc_object_destroy( p_playlist->p_preparse );
+ vlc_object_destroy( p_playlist->p_fetcher );
+ vlc_object_detach( p_playlist );
vlc_object_destroy( p_playlist );
-
}
+
/* Destroy remaining objects */
-static mtime_t ObjectGarbageCollector( playlist_t *p_playlist, int i_type,
- mtime_t destroy_date )
+static void ObjectGarbageCollector( playlist_t *p_playlist )
{
vlc_object_t *p_obj;
- if( destroy_date > mdate() ) return destroy_date;
+ if( mdate() - p_playlist->gc_date < 1000000 )
+ {
+ p_playlist->b_cant_sleep = VLC_TRUE;
+ return;
+ }
+ else if( p_playlist->gc_date == 0 )
+ return;
- if( destroy_date == 0 )
+ vlc_mutex_lock( &p_playlist->gc_lock );
+ while( ( p_obj = vlc_object_find( p_playlist, VLC_OBJECT_VOUT,
+ FIND_CHILD ) ) )
{
- /* give a little time */
- return mdate() + I64C(1000000);
+ if( p_obj->p_parent != (vlc_object_t*)p_playlist )
+ {
+ vlc_object_release( p_obj );
+ break;
+ }
+ msg_Dbg( p_playlist, "garbage collector destroying 1 vout" );
+ vlc_object_detach( p_obj );
+ vlc_object_release( p_obj );
+ vout_Destroy( (vout_thread_t *)p_obj );
}
- else
+ while( ( p_obj = vlc_object_find( p_playlist, VLC_OBJECT_SOUT,
+ FIND_CHILD ) ) )
{
- vlc_mutex_lock( &p_playlist->gc_lock );
- while( ( p_obj = vlc_object_find( p_playlist, i_type, FIND_CHILD ) ) )
+ if( p_obj->p_parent != (vlc_object_t*)p_playlist )
{
- if( p_obj->p_parent != (vlc_object_t*)p_playlist )
- {
- /* only first child (ie unused) */
- vlc_object_release( p_obj );
- break;
- }
- if( i_type == VLC_OBJECT_VOUT )
- {
- msg_Dbg( p_playlist, "garbage collector destroying 1 vout" );
- vlc_object_detach( p_obj );
- vlc_object_release( p_obj );
- vout_Destroy( (vout_thread_t *)p_obj );
- }
- else if( i_type == VLC_OBJECT_SOUT )
- {
- vlc_object_release( p_obj );
- sout_DeleteInstance( (sout_instance_t*)p_obj );
- }
+ vlc_object_release( p_obj );
+ break;
}
- vlc_mutex_unlock( &p_playlist->gc_lock );
- return 0;
+ vlc_object_release( p_obj );
+ sout_DeleteInstance( (sout_instance_t*)p_obj );
}
+ p_playlist->b_cant_sleep = VLC_FALSE;
+ vlc_mutex_unlock( &p_playlist->gc_lock );
}
/** Main loop for the playlist */
{
playlist_item_t *p_item = NULL;
vlc_bool_t b_playexit = var_GetBool( p_playlist, "play-and-exit" );
- PL_LOCK
+ PL_LOCK;
- /* First, check if we have something to do */
- /* FIXME : this can be called several times */
- if( p_playlist->request.b_request )
+ if( p_playlist->b_reset_currently_playing &&
+ mdate() - p_playlist->last_rebuild_date > 30000 ) // 30 ms
{
- /* Stop the existing input */
- if( p_playlist->p_input && !p_playlist->p_input->b_die )
- {
- PL_DEBUG( "incoming request - stopping current input" );
- input_StopThread( p_playlist->p_input );
- }
+ ResetCurrentlyPlaying( p_playlist, var_GetBool( p_playlist, "random"),
+ p_playlist->status.p_item );
+ p_playlist->last_rebuild_date = mdate();
}
+check_input:
/* If there is an input, check that it doesn't need to die. */
if( p_playlist->p_input )
{
+ if( p_playlist->request.b_request && !p_playlist->p_input->b_die )
+ {
+ PL_DEBUG( "incoming request - stopping current input" );
+ input_StopThread( p_playlist->p_input );
+ }
+
/* This input is dead. Remove it ! */
if( p_playlist->p_input->b_dead )
{
/* Destroy object */
vlc_object_destroy( p_input );
- p_playlist->i_vout_destroyed_date = 0;
- p_playlist->i_sout_destroyed_date = 0;
+ PL_LOCK;
+
+ p_playlist->gc_date = mdate();
+ p_playlist->b_cant_sleep = VLC_TRUE;
if( p_playlist->status.p_item->i_flags
& PLAYLIST_REMOVE_FLAG )
i_activity= var_GetInteger( p_playlist, "activity") ;
var_SetInteger( p_playlist, "activity", i_activity -
DEFAULT_INPUT_ACTIVITY );
-
- return;
+ goto check_input;
}
/* This input is dying, let it do */
else if( p_playlist->p_input->b_die )
{
PL_DEBUG( "dying input" );
+ msleep( 25000 ); // 25 ms
+ goto check_input;
}
/* This input has finished, ask it to die ! */
else if( p_playlist->p_input->b_error
{
PL_DEBUG( "finished input" );
input_StopThread( p_playlist->p_input );
- /* Select the next playlist item */
- PL_UNLOCK
- return;
+ /* No need to wait here, we'll wait in the p_input->b_die case */
+ goto check_input;
}
else if( p_playlist->p_input->i_state != INIT_S )
{
PL_UNLOCK;
- p_playlist->i_vout_destroyed_date =
- ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT,
- p_playlist->i_vout_destroyed_date );
- p_playlist->i_sout_destroyed_date =
- ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT,
- p_playlist->i_sout_destroyed_date );
- PL_LOCK
+ ObjectGarbageCollector( p_playlist );
+ PL_LOCK;
}
}
else
p_playlist->request.i_status != PLAYLIST_STOPPED ) )
{
msg_Dbg( p_playlist, "starting new item" );
- stats_TimerStart( p_playlist, "Playlist walk",
- STATS_TIMER_PLAYLIST_WALK );
p_item = playlist_NextItem( p_playlist );
- stats_TimerStop( p_playlist, STATS_TIMER_PLAYLIST_WALK );
if( p_item == NULL )
{
if( b_playexit == VLC_TRUE )
{
msg_Info( p_playlist, "end of playlist, exiting" );
- p_playlist->p_vlc->b_die = VLC_TRUE;
+ p_playlist->p_libvlc->b_die = VLC_TRUE;
}
p_playlist->status.i_status = PLAYLIST_STOPPED;
PL_UNLOCK
}
else
{
- if( p_playlist->status.p_item &&
- p_playlist->status.p_item->i_flags & PLAYLIST_REMOVE_FLAG )
- {
- PL_DEBUG( "deleting item marked for deletion" );
- playlist_ItemDelete( p_playlist->status.p_item );
- p_playlist->status.p_item = NULL;
- }
+ p_playlist->status.i_status = PLAYLIST_STOPPED;
+ if( p_playlist->status.p_item &&
+ p_playlist->status.p_item->i_flags & PLAYLIST_REMOVE_FLAG )
+ {
+ PL_DEBUG( "deleting item marked for deletion" );
+ playlist_ItemDelete( p_playlist->status.p_item );
+ p_playlist->status.p_item = NULL;
+ }
- /* Collect garbage */
- PL_UNLOCK
- p_playlist->i_sout_destroyed_date =
- ObjectGarbageCollector( p_playlist, VLC_OBJECT_SOUT, mdate() );
- p_playlist->i_vout_destroyed_date =
- ObjectGarbageCollector( p_playlist, VLC_OBJECT_VOUT, mdate() );
- PL_LOCK
- }
+ /* Collect garbage */
+ PL_UNLOCK;
+ ObjectGarbageCollector( p_playlist );
+ PL_LOCK;
+ }
}
PL_UNLOCK
}
void playlist_PreparseLoop( playlist_preparse_t *p_obj )
{
playlist_t *p_playlist = (playlist_t *)p_obj->p_parent;
+ input_item_t *p_current;
int i_activity;
+ uint32_t i_m, i_o;
- vlc_mutex_lock( &p_obj->object_lock );
-
- if( p_obj->i_waiting > 0 )
+ while( !p_playlist->b_die )
{
- input_item_t *p_current = p_playlist->p_preparse->pp_waiting[0];
+ vlc_mutex_lock( &p_obj->object_lock );
+ while( p_obj->i_waiting == 0 )
+ {
+ vlc_cond_wait( &p_obj->object_wait, &p_obj->object_lock );
+ if( p_playlist->b_die )
+ {
+ vlc_mutex_unlock( &p_obj->object_lock );
+ return;
+ }
+ }
+
+ p_current = p_obj->pp_waiting[0];
REMOVE_ELEM( p_obj->pp_waiting, p_obj->i_waiting, 0 );
vlc_mutex_unlock( &p_obj->object_lock );
- vlc_mutex_lock( &p_playlist->object_lock );
+
+ PL_LOCK;
if( p_current )
{
vlc_bool_t b_preparsed = VLC_FALSE;
b_preparsed = VLC_TRUE;
stats_TimerStart( p_playlist, "Preparse run",
STATS_TIMER_PREPARSE );
+ PL_UNLOCK;
input_Preparse( p_playlist, p_current );
+ PL_LOCK;
stats_TimerStop( p_playlist, STATS_TIMER_PREPARSE );
}
- vlc_mutex_unlock( &p_playlist->object_lock );
+ PL_UNLOCK;
if( b_preparsed )
{
- var_SetInteger( p_playlist, "item-change",
- p_current->i_id );
+ p_current->p_meta->i_status |= ITEM_PREPARSED;
+ var_SetInteger( p_playlist, "item-change", p_current->i_id );
}
- vlc_gc_decref( p_current );
+ PL_LOCK;
+
+ /* If we haven't retrieved enough meta, add to secondary queue
+ * which will run the "meta fetchers".
+ * This only checks for meta, not for art
+ * \todo don't do this for things we won't get meta for, like vids
+ */
+ if( p_current->p_meta &&
+ !input_MetaSatisfied( p_playlist, p_current, &i_m, &i_o ) )
+ {
+ preparse_item_t p;
+ PL_DEBUG("need to fetch meta for %s", p_current->psz_name );
+ p.p_item = p_current;
+ p.b_fetch_art = VLC_FALSE;
+ vlc_mutex_lock( &p_playlist->p_fetcher->object_lock );
+ INSERT_ELEM( p_playlist->p_fetcher->p_waiting,
+ p_playlist->p_fetcher->i_waiting,
+ p_playlist->p_fetcher->i_waiting, p);
+ vlc_mutex_unlock( &p_playlist->p_fetcher->object_lock );
+ vlc_cond_signal( &p_playlist->p_fetcher->object_wait );
+ }
+ /* We already have all needed meta, but we need art right now */
+ else if( p_current->p_meta &&
+ p_playlist->p_fetcher->i_art_policy == ALBUM_ART_ALL &&
+ EMPTY_STR( p_current->p_meta->psz_arturl ) )
+ {
+ preparse_item_t p;
+ PL_DEBUG("meta ok for %s, need to fetch art",
+ p_current->psz_name );
+ p.p_item = p_current;
+ p.b_fetch_art = VLC_TRUE;
+ vlc_mutex_lock( &p_playlist->p_fetcher->object_lock );
+ INSERT_ELEM( p_playlist->p_fetcher->p_waiting,
+ p_playlist->p_fetcher->i_waiting,
+ p_playlist->p_fetcher->i_waiting, p);
+ vlc_mutex_unlock( &p_playlist->p_fetcher->object_lock );
+ vlc_cond_signal( &p_playlist->p_fetcher->object_wait );
+ }
+ else
+ {
+ PL_DEBUG( "no fetch required for %s (art currently %s)",
+ p_current->psz_name,
+ p_current->p_meta ? p_current->p_meta->psz_arturl:
+ "null" );
+ vlc_gc_decref( p_current );
+ }
+ PL_UNLOCK;
}
else
+ PL_UNLOCK;
+
+ vlc_mutex_lock( &p_obj->object_lock );
+ i_activity = var_GetInteger( p_playlist, "activity" );
+ if( i_activity < 0 ) i_activity = 0;
+ vlc_mutex_unlock( &p_obj->object_lock );
+ /* Sleep at least 1ms */
+ msleep( (i_activity+1) * 1000 );
+ }
+}
+
+/** Main loop for secondary preparser queue */
+void playlist_FetcherLoop( playlist_fetcher_t *p_obj )
+{
+ playlist_t *p_playlist = (playlist_t *)p_obj->p_parent;
+ vlc_bool_t b_fetch_art;
+ input_item_t *p_item;
+ int i_activity;
+
+ while( !p_playlist->b_die )
+ {
+ vlc_mutex_lock( &p_obj->object_lock );
+ while( p_obj->i_waiting == 0 )
+ {
+ vlc_cond_wait( &p_obj->object_wait, &p_obj->object_lock );
+ if( p_playlist->b_die )
+ {
+ vlc_mutex_unlock( &p_obj->object_lock );
+ return;
+ }
+ }
+
+ b_fetch_art = p_obj->p_waiting->b_fetch_art;
+ p_item = p_obj->p_waiting->p_item;
+ REMOVE_ELEM( p_obj->p_waiting, p_obj->i_waiting, 0 );
+ vlc_mutex_unlock( &p_obj->object_lock );
+ if( p_item )
{
- vlc_mutex_unlock( &p_playlist->object_lock );
+ assert( p_item->p_meta );
+ if( !b_fetch_art )
+ {
+ input_MetaFetch( p_playlist, p_item );
+ p_item->p_meta->i_status |= ITEM_META_FETCHED;
+ var_SetInteger( p_playlist, "item-change", p_item->i_id );
+ /* Fetch right now */
+ if( p_playlist->p_fetcher->i_art_policy == ALBUM_ART_ALL )
+ {
+ vlc_mutex_lock( &p_obj->object_lock );
+ preparse_item_t p;
+ p.p_item = p_item;
+ p.b_fetch_art = VLC_TRUE;
+ INSERT_ELEM( p_playlist->p_fetcher->p_waiting,
+ p_playlist->p_fetcher->i_waiting,
+ 0, p );
+ PL_DEBUG("meta fetched for %s, get art", p_item->psz_name);
+ vlc_mutex_unlock( &p_obj->object_lock );
+ continue;
+ }
+ else
+ vlc_gc_decref( p_item );
+ }
+ else
+ {
+ int i_ret = input_ArtFind( p_playlist, p_item );
+ if( i_ret == 1 )
+ {
+ PL_DEBUG("downloading art for %s", p_item->psz_name );
+ if( input_DownloadAndCacheArt( p_playlist, p_item ) )
+ p_item->p_meta->i_status |= ITEM_ART_NOTFOUND;
+ else {
+ p_item->p_meta->i_status |= ITEM_ART_FETCHED;
+ var_SetInteger( p_playlist, "item-change",
+ p_item->i_id );
+ }
+ }
+ else if( i_ret == 0 ) /* Was in cache */
+ {
+ PL_DEBUG("found art for %s in cache", p_item->psz_name );
+ p_item->p_meta->i_status |= ITEM_ART_FETCHED;
+ var_SetInteger( p_playlist, "item-change", p_item->i_id );
+ }
+ else
+ {
+ PL_DEBUG("art not found for %s", p_item->psz_name );
+ p_item->p_meta->i_status |= ITEM_ART_NOTFOUND;
+ }
+ vlc_gc_decref( p_item );
+ }
}
vlc_mutex_lock( &p_obj->object_lock );
- i_activity= var_GetInteger( p_playlist, "activity" );
+ i_activity = var_GetInteger( p_playlist, "activity" );
if( i_activity < 0 ) i_activity = 0;
vlc_mutex_unlock( &p_obj->object_lock );
+ /* Sleep at least 1ms */
msleep( (i_activity+1) * 1000 );
- return;
}
- vlc_mutex_unlock( &p_obj->object_lock );
}
static void VariablesInit( playlist_t *p_playlist )
var_CreateGetBool( p_playlist, "random" );
var_CreateGetBool( p_playlist, "repeat" );
var_CreateGetBool( p_playlist, "loop" );
+
+ var_AddCallback( p_playlist, "random", RandomCallback, NULL );
}