/*****************************************************************************
- * preparse.c: Preparser thread.
+ * preparser.c: Preparser thread.
*****************************************************************************
- * Copyright © 1999-2009 the VideoLAN team
+ * Copyright © 1999-2009 VLC authors and VideoLAN
* $Id$
*
* Authors: Samuel Hocevar <sam@zoy.org>
* Clément Stenac <zorglub@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
+ * 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 General Public License for more details.
+ * 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 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.
+ * 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 <vlc_common.h>
-#include <vlc_playlist.h>
-#include "art.h"
#include "fetcher.h"
#include "preparser.h"
-#include "../input/input_interface.h"
+#include "input/input_interface.h"
+
+/*****************************************************************************
+ * Structures/definitions
+ *****************************************************************************/
+typedef struct preparser_entry_t preparser_entry_t;
+
+struct preparser_entry_t
+{
+ input_item_t *p_item;
+ input_item_meta_request_option_t i_options;
+};
+
+struct playlist_preparser_t
+{
+ vlc_object_t *object;
+ playlist_fetcher_t *p_fetcher;
+
+ vlc_mutex_t lock;
+ vlc_cond_t wait;
+ bool b_live;
+ preparser_entry_t **pp_waiting;
+ int i_waiting;
+};
static void *Thread( void * );
-playlist_preparser_t *playlist_preparser_New( playlist_t *p_playlist, playlist_fetcher_t *p_fetcher )
+/*****************************************************************************
+ * Public functions
+ *****************************************************************************/
+playlist_preparser_t *playlist_preparser_New( vlc_object_t *parent )
{
playlist_preparser_t *p_preparser = malloc( sizeof(*p_preparser) );
if( !p_preparser )
return NULL;
- p_preparser->p_playlist = p_playlist;
- p_preparser->p_fetcher = p_fetcher;
+ p_preparser->object = parent;
+ p_preparser->p_fetcher = playlist_fetcher_New( parent );
+ if( unlikely(p_preparser->p_fetcher == NULL) )
+ msg_Err( parent, "cannot create fetcher" );
+
vlc_mutex_init( &p_preparser->lock );
vlc_cond_init( &p_preparser->wait );
+ p_preparser->b_live = false;
p_preparser->i_waiting = 0;
p_preparser->pp_waiting = NULL;
- if( vlc_clone( &p_preparser->thread, Thread, p_preparser,
- VLC_THREAD_PRIORITY_LOW ) )
- {
- msg_Err( p_playlist, "cannot spawn preparse thread" );
- free( p_preparser );
- return NULL;
- }
return p_preparser;
}
-void playlist_preparser_Push( playlist_preparser_t *p_preparser, input_item_t *p_item )
+void playlist_preparser_Push( playlist_preparser_t *p_preparser, input_item_t *p_item,
+ input_item_meta_request_option_t i_options )
{
- vlc_gc_incref( p_item );
+ preparser_entry_t *p_entry = malloc( sizeof(preparser_entry_t) );
+
+ if ( !p_entry )
+ return;
+ p_entry->p_item = p_item;
+ p_entry->i_options = i_options;
+ vlc_gc_incref( p_entry->p_item );
vlc_mutex_lock( &p_preparser->lock );
INSERT_ELEM( p_preparser->pp_waiting, p_preparser->i_waiting,
- p_preparser->i_waiting, p_item );
- vlc_cond_signal( &p_preparser->wait );
+ p_preparser->i_waiting, p_entry );
+ if( !p_preparser->b_live )
+ {
+ if( vlc_clone_detach( NULL, Thread, p_preparser,
+ VLC_THREAD_PRIORITY_LOW ) )
+ msg_Warn( p_preparser->object, "cannot spawn pre-parser thread" );
+ else
+ p_preparser->b_live = true;
+ }
vlc_mutex_unlock( &p_preparser->lock );
}
-void playlist_preparser_Delete( playlist_preparser_t *p_preparser )
+void playlist_preparser_fetcher_Push( playlist_preparser_t *p_preparser,
+ input_item_t *p_item, input_item_meta_request_option_t i_options )
{
- /* Destroy the item preparser */
- vlc_cancel( p_preparser->thread );
- vlc_join( p_preparser->thread, NULL );
+ if( p_preparser->p_fetcher != NULL )
+ playlist_fetcher_Push( p_preparser->p_fetcher, p_item, i_options );
+}
+void playlist_preparser_Delete( playlist_preparser_t *p_preparser )
+{
+ vlc_mutex_lock( &p_preparser->lock );
+ /* Remove pending item to speed up preparser thread exit */
while( p_preparser->i_waiting > 0 )
- { /* Any left-over unparsed item? */
- vlc_gc_decref( p_preparser->pp_waiting[0] );
+ {
+ preparser_entry_t *p_entry = p_preparser->pp_waiting[0];
+ vlc_gc_decref( p_entry->p_item );
+ free( p_entry );
REMOVE_ELEM( p_preparser->pp_waiting, p_preparser->i_waiting, 0 );
}
+
+ while( p_preparser->b_live )
+ vlc_cond_wait( &p_preparser->wait, &p_preparser->lock );
+ vlc_mutex_unlock( &p_preparser->lock );
+
+ /* Destroy the item preparser */
vlc_cond_destroy( &p_preparser->wait );
vlc_mutex_destroy( &p_preparser->lock );
+
+ if( p_preparser->p_fetcher != NULL )
+ playlist_fetcher_Delete( p_preparser->p_fetcher );
+ free( p_preparser );
+}
+
+/*****************************************************************************
+ * Privates functions
+ *****************************************************************************/
+/**
+ * This function preparses an item when needed.
+ */
+static void Preparse( vlc_object_t *obj, input_item_t *p_item,
+ input_item_meta_request_option_t i_options )
+{
+ vlc_mutex_lock( &p_item->lock );
+ int i_type = p_item->i_type;
+ vlc_mutex_unlock( &p_item->lock );
+
+ bool b_preparse = false;
+ switch (i_type) {
+ case ITEM_TYPE_FILE:
+ case ITEM_TYPE_DIRECTORY:
+ case ITEM_TYPE_PLAYLIST:
+ case ITEM_TYPE_NODE:
+ b_preparse = true;
+ break;
+ case ITEM_TYPE_NET:
+ if (i_options & META_REQUEST_OPTION_SCOPE_NETWORK)
+ b_preparse = true;
+ break;
+ }
+ if( !b_preparse )
+ {
+ input_item_SetPreparsed( p_item, true );
+ return;
+ }
+
+ /* Do not preparse if it is already done (like by playing it) */
+ if( !input_item_IsPreparsed( p_item ) )
+ {
+ input_Preparse( obj, p_item );
+ input_item_SetPreparsed( p_item, true );
+
+ var_SetAddress( obj, "item-change", p_item );
+ }
}
+/**
+ * This function ask the fetcher object to fetch the art when needed
+ */
+static void Art( playlist_preparser_t *p_preparser, input_item_t *p_item )
+{
+ vlc_object_t *obj = p_preparser->object;
+ playlist_fetcher_t *p_fetcher = p_preparser->p_fetcher;
+
+ bool b_fetch = false;
+ /* 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
+ */
+
+ vlc_mutex_lock( &p_item->lock );
+ if( p_item->p_meta )
+ {
+ const char *psz_arturl = vlc_meta_Get( p_item->p_meta, vlc_meta_ArtworkURL );
+ const char *psz_name = vlc_meta_Get( p_item->p_meta, vlc_meta_Title );
+
+ if( !psz_arturl || ( strncmp( psz_arturl, "file://", 7 ) &&
+ strncmp( psz_arturl, "attachment://", 13 ) ) )
+ {
+ msg_Dbg( obj, "meta ok for %s, need to fetch art",
+ psz_name ? psz_name : "(null)" );
+ b_fetch = true;
+ }
+ else
+ {
+ msg_Dbg( obj, "no fetch required for %s (art currently %s)",
+ psz_name ? psz_name : "(null)",
+ psz_arturl ? psz_arturl : "(null)" );
+ }
+ }
+ vlc_mutex_unlock( &p_item->lock );
+
+ if( b_fetch && p_fetcher )
+ playlist_fetcher_Push( p_fetcher, p_item, 0 );
+}
+
+/**
+ * This function does the preparsing and issues the art fetching requests
+ */
static void *Thread( void *data )
{
playlist_preparser_t *p_preparser = data;
- playlist_t *p_playlist = p_preparser->p_playlist;
- playlist_fetcher_t *p_fetcher = p_preparser->p_fetcher;
+ vlc_object_t *obj = p_preparser->object;
for( ;; )
{
input_item_t *p_current;
+ input_item_meta_request_option_t i_options;
/* */
vlc_mutex_lock( &p_preparser->lock );
- mutex_cleanup_push( &p_preparser->lock );
-
- while( p_preparser->i_waiting == 0 )
- vlc_cond_wait( &p_preparser->wait, &p_preparser->lock );
-
- p_current = p_preparser->pp_waiting[0];
- REMOVE_ELEM( p_preparser->pp_waiting, p_preparser->i_waiting, 0 );
- vlc_cleanup_run( );
+ if( p_preparser->i_waiting > 0 )
+ {
+ preparser_entry_t *p_entry = p_preparser->pp_waiting[0];
+ p_current = p_entry->p_item;
+ i_options = p_entry->i_options;
+ free( p_entry );
+ REMOVE_ELEM( p_preparser->pp_waiting, p_preparser->i_waiting, 0 );
+ }
+ else
+ {
+ p_current = NULL;
+ p_preparser->b_live = false;
+ vlc_cond_signal( &p_preparser->wait );
+ }
+ vlc_mutex_unlock( &p_preparser->lock );
if( !p_current )
- continue;
+ break;
- int canc = vlc_savecancel ();
- {
- PL_LOCK;
- if( p_current->i_type == ITEM_TYPE_FILE )
- {
- stats_TimerStart( p_playlist, "Preparse run",
- STATS_TIMER_PREPARSE );
- /* Do not preparse if it is already done (like by playing it) */
- if( !input_item_IsPreparsed( p_current ) )
- {
- PL_UNLOCK;
- input_Preparse( p_playlist, p_current );
- PL_LOCK;
- }
- stats_TimerStop( p_playlist, STATS_TIMER_PREPARSE );
- PL_UNLOCK;
- input_item_SetPreparsed( p_current, true );
- var_SetInteger( p_playlist, "item-change", p_current->i_id );
- 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
- */
- char *psz_arturl = input_item_GetArtURL( p_current );
- char *psz_name = input_item_GetName( p_current );
- if( p_fetcher && p_fetcher->i_art_policy == ALBUM_ART_ALL &&
- ( !psz_arturl || strncmp( psz_arturl, "file://", 7 ) ) )
- {
- msg_Dbg( p_playlist, "meta ok for %s, need to fetch art", psz_name );
- playlist_fetcher_Push( p_fetcher, p_current );
- }
- else
- {
- msg_Dbg( p_playlist, "no fetch required for %s (art currently %s)",
- psz_name, psz_arturl );
- }
- vlc_gc_decref( p_current );
- free( psz_name );
- free( psz_arturl );
- PL_UNLOCK;
- }
- vlc_restorecancel( canc );
+ Preparse( obj, p_current, i_options );
- int i_activity = var_GetInteger( p_playlist, "activity" );
- if( i_activity < 0 ) i_activity = 0;
- /* Sleep at least 1ms */
- msleep( (i_activity+1) * 1000 );
+ Art( p_preparser, p_current );
+ vlc_gc_decref(p_current);
}
return NULL;
}
projects / vlc / blobdiff