1 /*****************************************************************************
2 * meta.c : Metadata handling
3 *****************************************************************************
4 * Copyright (C) 1998-2004 the VideoLAN team
7 * Authors: Antoine Cellerier <dionoea@videolan.org>
8 * Clément Stenac <zorglub@videolan.org
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
26 #include <vlc_input.h>
27 #include <vlc_stream.h>
29 #include <vlc_playlist.h>
30 #include <vlc_charset.h>
31 #include <vlc_strings.h>
32 #include "../playlist/playlist_internal.h"
35 #ifdef HAVE_SYS_STAT_H
36 # include <sys/stat.h>
39 static const char * meta_type_to_string[VLC_META_TYPE_COUNT] =
41 [vlc_meta_Title] = N_("Title"),
42 [vlc_meta_Artist] = N_("Artist"),
43 [vlc_meta_Genre] = N_("Genre"),
44 [vlc_meta_Copyright] = N_("Copyright"),
45 [vlc_meta_Album] = N_("Album"),
46 [vlc_meta_TrackNumber] = N_("Track number"),
47 [vlc_meta_Description] = N_("Description"),
48 [vlc_meta_Rating] = N_("Rating"),
49 [vlc_meta_Date] = N_("Date"),
50 [vlc_meta_Setting] = N_("Setting"),
51 [vlc_meta_URL] = N_("URL"),
52 [vlc_meta_Language] = N_("Language"),
53 [vlc_meta_NowPlaying] = N_("Now Playing"),
54 [vlc_meta_Publisher] = N_("Publisher"),
55 [vlc_meta_EncodedBy] = N_("Encoded by"),
56 [vlc_meta_ArtworkURL] = N_("Artwork URL"),
57 [vlc_meta_TrackID] = N_("Track ID"),
61 input_MetaTypeToLocalizedString( vlc_meta_type_t meta_type )
63 return _(meta_type_to_string[meta_type]);
66 #define input_FindArtInCache(a,b) __input_FindArtInCache(VLC_OBJECT(a),b)
67 static int __input_FindArtInCache( vlc_object_t *, input_item_t *p_item );
69 vlc_bool_t input_MetaSatisfied( playlist_t *p_playlist, input_item_t *p_item,
70 uint32_t *pi_mandatory, uint32_t *pi_optional )
73 *pi_mandatory = VLC_META_ENGINE_TITLE | VLC_META_ENGINE_ARTIST;
75 uint32_t i_meta = input_CurrentMetaFlags( p_item->p_meta );
76 *pi_mandatory &= ~i_meta;
77 *pi_optional = 0; /// Todo
78 return *pi_mandatory ? VLC_FALSE:VLC_TRUE;
81 int input_MetaFetch( playlist_t *p_playlist, input_item_t *p_item )
83 struct meta_engine_t *p_me;
84 uint32_t i_mandatory, i_optional;
86 input_MetaSatisfied( p_playlist, p_item, &i_mandatory, &i_optional );
87 // Meta shouldn't magically appear
88 assert( i_mandatory );
90 /* FIXME: object creation is overkill, use p_private */
91 p_me = vlc_object_create( p_playlist, VLC_OBJECT_META_ENGINE );
92 p_me->i_flags |= OBJECT_FLAGS_NOINTERACT;
93 p_me->i_flags |= OBJECT_FLAGS_QUIET;
94 p_me->i_mandatory = i_mandatory;
95 p_me->i_optional = i_optional;
97 p_me->p_item = p_item;
98 p_me->p_module = module_Need( p_me, "meta fetcher", 0, VLC_FALSE );
101 vlc_object_destroy( p_me );
104 module_Unneed( p_me, p_me->p_module );
105 vlc_object_destroy( p_me );
107 input_item_SetMetaFetched( p_item, VLC_TRUE );
113 * 0 : Art is in cache
114 * 1 : Art found, need to download
115 * -X : Error/not found
117 int input_ArtFind( playlist_t *p_playlist, input_item_t *p_item )
119 int i_ret = VLC_EGENERIC;
121 char *psz_name, *psz_title, *psz_artist, *psz_album;
123 if( !p_item->p_meta )
126 psz_name = input_item_GetName( p_item );
127 psz_title = input_item_GetTitle( p_item );
128 psz_artist = input_item_GetArtist( p_item );
129 psz_album = input_item_GetAlbum( p_item );
131 if( !psz_name && !psz_title && !psz_artist && !psz_album )
136 /* If we already checked this album in this session, skip */
137 if( psz_artist && psz_album )
139 FOREACH_ARRAY( playlist_album_t album, p_playlist->p_fetcher->albums )
140 if( !strcmp( album.psz_artist, psz_artist ) &&
141 !strcmp( album.psz_album, psz_album ) )
143 msg_Dbg( p_playlist, " %s - %s has already been searched",
144 psz_artist, psz_album );
145 /* TODO-fenrir if we cache art filename too, we can go faster */
150 /* Actually get URL from cache */
151 input_FindArtInCache( p_playlist, p_item );
164 char *psz_arturl = input_item_GetArtURL( p_item );
165 input_FindArtInCache( p_playlist, p_item );
166 if( !EMPTY_STR( psz_arturl ) )
174 p_playlist->p_private = p_item;
175 psz_album = input_item_GetAlbum( p_item );
176 psz_artist = input_item_GetArtist( p_item );
177 psz_name = input_item_GetName( p_item );
178 psz_title = input_item_GetTitle( p_item );
179 if( psz_album && psz_artist )
181 msg_Dbg( p_playlist, "searching art for %s - %s",
182 psz_artist, psz_album );
186 msg_Dbg( p_playlist, "searching art for %s",
187 psz_title ? psz_title : psz_name );
192 p_module = module_Need( p_playlist, "art finder", 0, VLC_FALSE );
197 msg_Dbg( p_playlist, "unable to find art" );
199 /* Record this album */
200 if( psz_artist && psz_album )
203 a.psz_artist = psz_artist;
204 a.psz_album = psz_album;
205 a.b_found = (i_ret == VLC_EGENERIC ? VLC_FALSE : VLC_TRUE );
206 ARRAY_APPEND( p_playlist->p_fetcher->albums, a );
215 module_Unneed( p_playlist, p_module );
216 p_playlist->p_private = NULL;
223 # define MAX_PATH 250
225 #define ArtCacheCreateName(a,b,c,d,e,f) __ArtCacheCreateName(VLC_OBJECT(a),b,c,d,e,f)
226 static void __ArtCacheCreateName( vlc_object_t *p_obj,
227 char psz_filename[MAX_PATH+1],
229 char *psz_artist, char *psz_album,
230 const char *psz_extension )
235 psz_ext = strndup( psz_extension, 6 );
236 filename_sanitize( psz_ext );
238 else psz_ext = strdup( "" );
239 if( !EMPTY_STR(psz_artist) && !EMPTY_STR(psz_album) )
241 filename_sanitize( psz_title );
242 filename_sanitize( psz_artist );
243 snprintf( psz_filename, MAX_PATH,
244 "file://%s" DIR_SEP CONFIG_DIR DIR_SEP "art" DIR_SEP "artistalbum"
245 DIR_SEP "%s" DIR_SEP "%s" DIR_SEP "art%s",
246 p_obj->p_libvlc->psz_homedir,
247 psz_artist, psz_album, psz_ext );
251 /* We will use the psz_title name to store the art */
252 filename_sanitize( psz_title );
253 snprintf( psz_filename, MAX_PATH,
254 "file://%s" DIR_SEP CONFIG_DIR DIR_SEP "art" DIR_SEP "title"
255 DIR_SEP "%s" DIR_SEP "art%s",
256 p_obj->p_libvlc->psz_homedir,
257 psz_title, psz_ext );
261 #define ArtCacheCreatePath(a,b,c,d) __ArtCacheCreatePath(VLC_OBJECT(a),b,c,d)
262 static void __ArtCacheCreatePath( vlc_object_t *p_obj,
264 char *psz_artist, char *psz_album )
266 char psz_dir[MAX_PATH+1];
267 snprintf( psz_dir, MAX_PATH, "%s" DIR_SEP CONFIG_DIR,
268 p_obj->p_libvlc->psz_homedir );
269 utf8_mkdir( psz_dir );
270 snprintf( psz_dir, MAX_PATH, "%s" DIR_SEP CONFIG_DIR DIR_SEP "art",
271 p_obj->p_libvlc->psz_homedir );
272 utf8_mkdir( psz_dir );
274 if( !EMPTY_STR(psz_artist) && !EMPTY_STR(psz_album) )
276 snprintf( psz_dir, MAX_PATH, "%s" DIR_SEP CONFIG_DIR DIR_SEP
277 "art" DIR_SEP "artistalbum",
278 p_obj->p_libvlc->psz_homedir );
279 utf8_mkdir( psz_dir );
280 snprintf( psz_dir, MAX_PATH, "%s" DIR_SEP CONFIG_DIR DIR_SEP
281 "art" DIR_SEP "artistalbum" DIR_SEP "%s",
282 p_obj->p_libvlc->psz_homedir, psz_artist );
283 utf8_mkdir( psz_dir );
284 snprintf( psz_dir, MAX_PATH, "%s" DIR_SEP CONFIG_DIR DIR_SEP
285 "art" DIR_SEP "artistalbum" DIR_SEP "%s" DIR_SEP "%s",
286 p_obj->p_libvlc->psz_homedir,
287 psz_artist, psz_album );
288 utf8_mkdir( psz_dir );
292 snprintf( psz_dir, MAX_PATH, "%s" DIR_SEP CONFIG_DIR DIR_SEP
293 "art" DIR_SEP "title",
294 p_obj->p_libvlc->psz_homedir );
295 utf8_mkdir( psz_dir );
296 snprintf( psz_dir, MAX_PATH, "%s" DIR_SEP CONFIG_DIR DIR_SEP
297 "art" DIR_SEP "title" DIR_SEP "%s",
298 p_obj->p_libvlc->psz_homedir, psz_title );
299 utf8_mkdir( psz_dir );
302 static char *ArtCacheCreateString( const char *psz )
304 char *dup = strdup(psz);
307 /* Doesn't create a filename with invalid characters
308 * TODO: several filesystems forbid several characters: list them all
310 for( i = 0; dup[i] != '\0'; i++ )
318 static int __input_FindArtInCache( vlc_object_t *p_obj, input_item_t *p_item )
323 char psz_filename[MAX_PATH+1];
326 const char *ppsz_type[] = { ".jpg", ".png", ".gif", ".bmp", "" };
328 if( !p_item->p_meta ) return VLC_EGENERIC;
330 psz_artist = input_item_GetArtist( p_item );
331 psz_album = input_item_GetAlbum( p_item );
332 psz_title = input_item_GetTitle( p_item );
333 if( !psz_title ) psz_title = input_item_GetName( p_item );
335 if( !psz_title && ( !psz_album || !psz_artist ) )
344 for( i = 0; i < 5; i++ )
346 ArtCacheCreateName( p_obj, psz_filename, psz_title /* Used if none artist nor album is defined */,
347 psz_artist, psz_album, ppsz_type[i] );
349 /* Check if file exists */
350 if( utf8_stat( psz_filename+7, &a ) == 0 )
352 input_item_SetArtURL( p_item, psz_filename );
364 * Download the art using the URL or an art downloaded
365 * This function should be called only if data is not already in cache
367 int input_DownloadAndCacheArt( playlist_t *p_playlist, input_item_t *p_item )
369 int i_status = VLC_EGENERIC;
371 char psz_filename[MAX_PATH+1];
372 char *psz_artist = NULL;
373 char *psz_album = NULL;
374 char *psz_title = NULL;
375 char *psz_name = NULL;
379 psz_artist = input_item_GetArtist( p_item );
380 psz_album = input_item_GetAlbum( p_item );
381 psz_title = input_item_GetTitle( p_item );
382 psz_name = input_item_GetName( p_item );
384 if( !psz_title && (!psz_artist || !psz_album) )
392 psz_arturl = input_item_GetArtURL( p_item );
393 assert( !EMPTY_STR( psz_arturl ) );
395 if( !strncmp( psz_arturl , "APIC", 4 ) )
397 msg_Warn( p_playlist, "APIC fetch not supported yet" );
402 psz_type = strrchr( psz_arturl, '.' );
403 if( strlen( psz_type ) > 5 )
404 psz_type = NULL; /* remove extension if it's > to 4 characters */
407 ArtCacheCreateName( p_playlist, psz_filename, psz_title /* Used only if needed*/,
408 psz_artist, psz_album, psz_type );
411 ArtCacheCreatePath( p_playlist, psz_title, psz_artist, psz_album );
418 p_stream = stream_UrlNew( p_playlist, psz_arturl );
421 uint8_t p_buffer[65536];
423 FILE *p_file = utf8_fopen( psz_filename+7, "w" );
424 if( p_file == NULL ) {
425 msg_Err( p_playlist, "Unable write album art in %s" );
430 while( ( l_read = stream_Read( p_stream, p_buffer, sizeof (p_buffer) ) ) )
432 if( fwrite( p_buffer, l_read, 1, p_file ) != 1 )
438 if( fclose( p_file ) && !err )
440 stream_Delete( p_stream );
443 msg_Err( p_playlist, "%s: %s", psz_filename, strerror( err ) );
445 msg_Dbg( p_playlist, "album art saved to %s\n", psz_filename );
447 input_item_SetArtURL( p_item, psz_filename );
448 i_status = VLC_SUCCESS;
454 void input_ExtractAttachmentAndCacheArt( input_thread_t *p_input )
456 input_item_t *p_item = p_input->p->input.p_item;
458 char *psz_artist = NULL;
459 char *psz_album = NULL;
460 char *psz_title = NULL;
461 char *psz_type = NULL;
462 char *psz_artist_m, *psz_album_m, *psz_title_m, *psz_name_m;
463 char psz_filename[MAX_PATH+1];
465 input_attachment_t *p_attachment;
469 /* TODO-fenrir merge input_ArtFind with download and make it set the flags FETCH
470 * and then set it here to to be faster */
472 psz_arturl = input_item_GetArtURL( p_item );
473 if( !psz_arturl || strncmp( psz_arturl, "attachment://", strlen("attachment://") ) )
476 msg_Err( p_input, "internal input error with input_ExtractAttachmentAndCacheArt" );
479 input_item_SetArtURL( p_item, NULL );
481 if( input_item_IsArtFetched( p_item ) )
483 /* XXX Weird, we should not have end up with attachment:// art url unless there is a race
485 msg_Warn( p_input, "internal input error with input_ExtractAttachmentAndCacheArt" );
486 input_FindArtInCache( p_input, p_item );
492 for( i_idx = 0, p_attachment = NULL; i_idx < p_input->p->i_attachment; i_idx++ )
494 if( !strcmp( p_input->p->attachment[i_idx]->psz_name,
495 &psz_arturl[strlen("attachment://")] ) )
497 p_attachment = p_input->p->attachment[i_idx];
501 if( !p_attachment || p_attachment->i_data <= 0 )
503 msg_Warn( p_input, "internal input error with input_ExtractAttachmentAndCacheArt" );
507 psz_artist_m = input_item_GetArtist( p_item );
508 psz_album_m = input_item_GetAlbum( p_item );
509 psz_title_m = input_item_GetTitle( p_item );
510 psz_name_m = input_item_GetName( p_item );
512 if( psz_artist_m ) psz_artist = ArtCacheCreateString( psz_artist_m );
513 if( psz_album_m ) psz_album = ArtCacheCreateString( psz_album_m );
514 if( psz_title_m ) psz_title = ArtCacheCreateString( psz_title_m );
515 else if( psz_name_m ) psz_title = ArtCacheCreateString( psz_name_m );
517 free( psz_artist_m );
522 if( (!psz_artist || !psz_album ) && !psz_title )
526 psz_type = strrchr( psz_arturl, '.' );
527 ArtCacheCreateName( p_input, psz_filename, psz_title, psz_artist, psz_album, psz_type );
529 /* Check if we already dumped it */
530 if( !utf8_stat( psz_filename+7, &s ) )
533 ArtCacheCreatePath( p_input, psz_title, psz_artist, psz_album );
535 f = utf8_fopen( psz_filename+7, "w" );
538 if( fwrite( p_attachment->p_data, p_attachment->i_data, 1, f ) != 1 )
539 msg_Err( p_input, "%s: %s", psz_filename, strerror( errno ) );
541 msg_Dbg( p_input, "album art saved to %s\n", psz_filename );
546 if( psz_artist ) free( psz_artist );
547 if( psz_album ) free( psz_album );
548 if( psz_title ) free( psz_title );
549 if( psz_arturl ) free( psz_arturl );
553 uint32_t input_CurrentMetaFlags( vlc_meta_t *p_meta )
560 #define CHECK( a, b ) \
561 if( !EMPTY_STR( vlc_meta_Get( p_meta, vlc_meta_ ## a ) ) ) \
562 i_meta |= VLC_META_ENGINE_ ## b;
564 CHECK( Title, TITLE )
565 CHECK( Artist, ARTIST )
566 CHECK( Album, COLLECTION )
568 /* As this is not used at the moment, don't uselessly check for it.
569 * Re-enable this when it is used */
570 CHECK( Genre, GENRE )
571 CHECK( Copyright, COPYRIGHT )
572 CHECK( Tracknum, SEQ_NUM )
573 CHECK( Description, DESCRIPTION )
574 CHECK( Rating, RATING )
577 CHECK( Language, LANGUAGE )
579 CHECK( ArtworkURL, ART_URL )