/*****************************************************************************
* fetcher.c: Art fetcher 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 <limits.h>
+#include <assert.h>
+
#include <vlc_common.h>
-#include <vlc_playlist.h>
#include <vlc_stream.h>
-#include <limits.h>
+#include <vlc_art_finder.h>
+#include <vlc_memory.h>
+#include <vlc_demux.h>
+#include <vlc_modules.h>
+#include "libvlc.h"
#include "art.h"
#include "fetcher.h"
-#include "playlist_internal.h"
-
+#include "input/input_interface.h"
/*****************************************************************************
* Structures/definitions
*****************************************************************************/
struct playlist_fetcher_t
{
- VLC_COMMON_MEMBERS;
-
- playlist_t *p_playlist;
-
- vlc_thread_t thread;
+ vlc_object_t *object;
vlc_mutex_t lock;
vlc_cond_t wait;
+ bool b_live;
int i_art_policy;
int i_waiting;
input_item_t **pp_waiting;
/*****************************************************************************
* Public functions
*****************************************************************************/
-playlist_fetcher_t *playlist_fetcher_New( playlist_t *p_playlist )
+playlist_fetcher_t *playlist_fetcher_New( vlc_object_t *parent )
{
- playlist_fetcher_t *p_fetcher =
- vlc_custom_create( p_playlist, sizeof(*p_fetcher),
- VLC_OBJECT_GENERIC, "playlist fetcher" );
-
+ playlist_fetcher_t *p_fetcher = malloc( sizeof(*p_fetcher) );
if( !p_fetcher )
return NULL;
- vlc_object_attach( p_fetcher, p_playlist );
- p_fetcher->p_playlist = p_playlist;
+ p_fetcher->object = parent;
vlc_mutex_init( &p_fetcher->lock );
vlc_cond_init( &p_fetcher->wait );
+ p_fetcher->b_live = false;
p_fetcher->i_waiting = 0;
p_fetcher->pp_waiting = NULL;
- p_fetcher->i_art_policy = var_GetInteger( p_playlist, "album-art" );
+ p_fetcher->i_art_policy = var_GetInteger( parent, "album-art" );
ARRAY_INIT( p_fetcher->albums );
- if( vlc_clone( &p_fetcher->thread, Thread, p_fetcher,
- VLC_THREAD_PRIORITY_LOW ) )
- {
- msg_Err( p_fetcher, "cannot spawn secondary preparse thread" );
- vlc_object_release( p_fetcher );
- return NULL;
- }
-
return p_fetcher;
}
-void playlist_fetcher_Push( playlist_fetcher_t *p_fetcher, input_item_t *p_item )
+void playlist_fetcher_Push( playlist_fetcher_t *p_fetcher,
+ input_item_t *p_item )
{
vlc_gc_incref( p_item );
vlc_mutex_lock( &p_fetcher->lock );
INSERT_ELEM( p_fetcher->pp_waiting, p_fetcher->i_waiting,
p_fetcher->i_waiting, p_item );
- vlc_cond_signal( &p_fetcher->wait );
+ if( !p_fetcher->b_live )
+ {
+ if( vlc_clone_detach( NULL, Thread, p_fetcher,
+ VLC_THREAD_PRIORITY_LOW ) )
+ msg_Err( p_fetcher->object,
+ "cannot spawn secondary preparse thread" );
+ else
+ p_fetcher->b_live = true;
+ }
vlc_mutex_unlock( &p_fetcher->lock );
}
void playlist_fetcher_Delete( playlist_fetcher_t *p_fetcher )
{
- /* */
- vlc_object_kill( p_fetcher );
-
- /* Destroy the item meta-infos fetcher */
- vlc_cancel( p_fetcher->thread );
- vlc_join( p_fetcher->thread, NULL );
-
+ vlc_mutex_lock( &p_fetcher->lock );
+ /* Remove any left-over item, the fetcher will exit */
while( p_fetcher->i_waiting > 0 )
- { /* Any left-over unparsed item? */
+ {
vlc_gc_decref( p_fetcher->pp_waiting[0] );
REMOVE_ELEM( p_fetcher->pp_waiting, p_fetcher->i_waiting, 0 );
}
+
+ while( p_fetcher->b_live )
+ vlc_cond_wait( &p_fetcher->wait, &p_fetcher->lock );
+ vlc_mutex_unlock( &p_fetcher->lock );
+
vlc_cond_destroy( &p_fetcher->wait );
vlc_mutex_destroy( &p_fetcher->lock );
- vlc_object_release( p_fetcher );
+ free( p_fetcher );
}
static int FindArt( playlist_fetcher_t *p_fetcher, input_item_t *p_item )
{
int i_ret;
- module_t *p_module;
- char *psz_title, *psz_artist, *psz_album;
- psz_artist = input_item_GetArtist( p_item );
- psz_album = input_item_GetAlbum( p_item );
- psz_title = input_item_GetTitle( p_item );
+ char *psz_artist = input_item_GetArtist( p_item );
+ char *psz_album = input_item_GetAlbum( p_item );
+ char *psz_title = input_item_GetTitle( p_item );
if( !psz_title )
psz_title = input_item_GetName( p_item );
if( !strcmp( album.psz_artist, psz_artist ) &&
!strcmp( album.psz_album, psz_album ) )
{
- msg_Dbg( p_fetcher, " %s - %s has already been searched",
+ msg_Dbg( p_fetcher->object,
+ " %s - %s has already been searched",
psz_artist, psz_album );
/* TODO-fenrir if we cache art filename too, we can go faster */
free( psz_artist );
free( psz_artist );
free( psz_album );
- playlist_FindArtInCache( p_item );
+ if ( playlist_FindArtInCacheUsingItemUID( p_item ) != VLC_SUCCESS )
+ playlist_FindArtInCache( p_item );
+ else
+ msg_Dbg( p_fetcher->object, "successfully retrieved arturl by uid" );
char *psz_arturl = input_item_GetArtURL( p_item );
if( psz_arturl )
{
- /* We already have an URL */
+ /* We already have a URL */
if( !strncmp( psz_arturl, "file://", strlen( "file://" ) ) )
{
free( psz_arturl );
psz_artist = input_item_GetArtist( p_item );
if( psz_album && psz_artist )
{
- msg_Dbg( p_fetcher, "searching art for %s - %s",
- psz_artist, psz_album );
+ msg_Dbg( p_fetcher->object, "searching art for %s - %s",
+ psz_artist, psz_album );
}
else
{
if( !psz_title )
psz_title = input_item_GetName( p_item );
- msg_Dbg( p_fetcher, "searching art for %s", psz_title );
+ msg_Dbg( p_fetcher->object, "searching art for %s", psz_title );
free( psz_title );
}
/* Fetch the art url */
- p_fetcher->p_private = p_item;
+ i_ret = VLC_EGENERIC;
- p_module = module_need( p_fetcher, "art finder", NULL, false );
-
- if( p_module )
+ vlc_object_t *p_parent = p_fetcher->object;
+ art_finder_t *p_finder =
+ vlc_custom_create( p_parent, sizeof( *p_finder ), "art finder" );
+ if( p_finder != NULL)
{
- module_unneed( p_fetcher, p_module );
- i_ret = 1;
- }
- else
- {
- msg_Dbg( p_fetcher, "unable to find art" );
- i_ret = VLC_EGENERIC;
+ module_t *p_module;
+
+ p_finder->p_item = p_item;
+
+ p_module = module_need( p_finder, "art finder", NULL, false );
+ if( p_module )
+ {
+ module_unneed( p_finder, p_module );
+ /* Try immediately if found in cache by download URL */
+ if( !playlist_FindArtInCache( p_item ) )
+ i_ret = 0;
+ else
+ i_ret = 1;
+ }
+ vlc_object_release( p_finder );
}
/* Record this album */
if( !strncmp( psz_arturl , "file://", 7 ) )
{
- msg_Dbg( p_fetcher, "Album art is local file, no need to cache" );
+ msg_Dbg( p_fetcher->object,
+ "Album art is local file, no need to cache" );
free( psz_arturl );
return VLC_SUCCESS;
}
if( !strncmp( psz_arturl , "APIC", 4 ) )
{
- msg_Warn( p_fetcher, "APIC fetch not supported yet" );
+ msg_Warn( p_fetcher->object, "APIC fetch not supported yet" );
goto error;
}
- stream_t *p_stream = stream_UrlNew( p_fetcher, psz_arturl );
+ stream_t *p_stream = stream_UrlNew( p_fetcher->object, psz_arturl );
if( !p_stream )
goto error;
if( i_data >= INT_MAX - i_read )
break;
- p_data = realloc( p_data, i_data + i_read );
+ p_data = realloc_or_free( p_data, i_data + i_read );
if( !p_data )
break;
if( psz_type && strlen( psz_type ) > 5 )
psz_type = NULL; /* remove extension if it's > to 4 characters */
- playlist_SaveArt( p_fetcher->p_playlist, p_item, p_data, i_data, psz_type );
+ playlist_SaveArt( p_fetcher->object, p_item,
+ p_data, i_data, psz_type );
}
free( p_data );
return VLC_EGENERIC;
}
-
-static int InputEvent( vlc_object_t *p_this, char const *psz_cmd,
- vlc_value_t oldval, vlc_value_t newval, void *p_data )
-{
- VLC_UNUSED(p_this); VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval);
- playlist_fetcher_t *p_fetcher = p_data;
-
- if( newval.i_int == INPUT_EVENT_ITEM_META ||
- newval.i_int == INPUT_EVENT_DEAD )
- vlc_cond_signal( &p_fetcher->wait );
-
- return VLC_SUCCESS;
-}
-
-
-/* Check if it is not yet preparsed and if so wait for it
- * (at most 0.5s)
- * (This can happen if we fetch art on play)
- * FIXME this doesn't work if we need to fetch meta before art...
+/**
+ * FetchMeta, run the "meta fetcher". They are going to do network
+ * connections, and gather information upon the playing media.
+ * (even artwork).
*/
-static void WaitPreparsed( playlist_fetcher_t *p_fetcher, input_item_t *p_item )
+static void FetchMeta( playlist_fetcher_t *p_fetcher, input_item_t *p_item )
{
- if( input_item_IsPreparsed( p_item ) )
- return;
-
- input_thread_t *p_input = playlist_CurrentInput( p_fetcher->p_playlist );
- if( !p_input )
+ demux_meta_t *p_demux_meta = vlc_custom_create(p_fetcher->object,
+ sizeof(*p_demux_meta), "demux meta" );
+ if( !p_demux_meta )
return;
- if( input_GetItem( p_input ) != p_item )
- goto exit;
-
- var_AddCallback( p_input, "intf-event", InputEvent, p_fetcher );
-
- const mtime_t i_deadline = mdate() + 500*1000;
-
- while( !p_input->b_eof && !p_input->b_error && !input_item_IsPreparsed( p_item ) )
- {
- /* A bit weird, but input_item_IsPreparsed does held the protected value */
- vlc_mutex_lock( &p_fetcher->lock );
- vlc_cond_timedwait( &p_fetcher->wait, &p_fetcher->lock, i_deadline );
- vlc_mutex_unlock( &p_fetcher->lock );
-
- if( i_deadline <= mdate() )
- break;
- }
-
- var_DelCallback( p_input, "intf-event", InputEvent, p_fetcher );
+ p_demux_meta->p_demux = NULL;
+ p_demux_meta->p_item = p_item;
-exit:
- vlc_object_release( p_input );
+ module_t *p_meta_fetcher = module_need( p_demux_meta, "meta fetcher", NULL, false );
+ if( p_meta_fetcher )
+ module_unneed( p_demux_meta, p_meta_fetcher );
+ vlc_object_release( p_demux_meta );
}
static void *Thread( void *p_data )
{
playlist_fetcher_t *p_fetcher = p_data;
- playlist_t *p_playlist = p_fetcher->p_playlist;
+ vlc_object_t *obj = p_fetcher->object;
for( ;; )
{
- input_item_t *p_item;
+ input_item_t *p_item = NULL;
- /* Be sure to be cancellable before our queue is empty */
- vlc_testcancel();
-
- /* */
vlc_mutex_lock( &p_fetcher->lock );
- mutex_cleanup_push( &p_fetcher->lock );
-
- while( p_fetcher->i_waiting == 0 )
- vlc_cond_wait( &p_fetcher->wait, &p_fetcher->lock );
-
- p_item = p_fetcher->pp_waiting[0];
- REMOVE_ELEM( p_fetcher->pp_waiting, p_fetcher->i_waiting, 0 );
- vlc_cleanup_run( );
+ if( p_fetcher->i_waiting != 0 )
+ {
+ p_item = p_fetcher->pp_waiting[0];
+ REMOVE_ELEM( p_fetcher->pp_waiting, p_fetcher->i_waiting, 0 );
+ }
+ else
+ {
+ p_fetcher->b_live = false;
+ vlc_cond_signal( &p_fetcher->wait );
+ }
+ vlc_mutex_unlock( &p_fetcher->lock );
if( !p_item )
- continue;
-
- /* */
- int canc = vlc_savecancel();
+ break;
- /* Wait that the input item is preparsed if it is being played */
- WaitPreparsed( p_fetcher, p_item );
-
- /* */
- if( !vlc_object_alive( p_fetcher ) )
- goto end;
+ /* Triggers "meta fetcher", eventually fetch meta on the network.
+ * They are identical to "meta reader" expect that may actually
+ * takes time. That's why they are running here.
+ * The result of this fetch is not cached. */
+ FetchMeta( p_fetcher, p_item );
/* Find art, and download it if needed */
int i_ret = FindArt( p_fetcher, p_item );
-
- /* */
- if( !vlc_object_alive( p_fetcher ) )
- goto end;
-
if( i_ret == 1 )
i_ret = DownloadArt( p_fetcher, p_item );
char *psz_name = input_item_GetName( p_item );
if( !i_ret ) /* Art is now in cache */
{
- PL_DEBUG( "found art for %s in cache", psz_name );
+ msg_Dbg( obj, "found art for %s in cache", psz_name );
input_item_SetArtFetched( p_item, true );
- var_SetAddress( p_playlist, "item-change", p_item );
+ var_SetAddress( obj, "item-change", p_item );
}
else
{
- PL_DEBUG( "art not found for %s", psz_name );
+ msg_Dbg( obj, "art not found for %s", psz_name );
input_item_SetArtNotFound( p_item, true );
}
free( psz_name );
-
- end:
vlc_gc_decref( p_item );
-
- vlc_restorecancel( canc );
-
- int i_activity = var_GetInteger( p_playlist, "activity" );
- if( i_activity < 0 ) i_activity = 0;
- /* Sleep at least 1ms */
- msleep( (i_activity+1) * 1000 );
}
return NULL;
}
-
-
projects / vlc / blobdiff