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 *****************************************************************************/
29 #include <vlc_common.h>
30 #include <vlc_playlist.h>
32 #include <vlc_arrays.h>
34 #include "input_internal.h"
35 #include "../playlist/art.h"
39 char * ppsz_meta[VLC_META_TYPE_COUNT];
41 vlc_dictionary_t extra_tags;
46 /* FIXME bad name convention */
47 const char * vlc_meta_TypeToLocalizedString( vlc_meta_type_t meta_type )
51 case vlc_meta_Title: return _("Title");
52 case vlc_meta_Artist: return _("Artist");
53 case vlc_meta_Genre: return _("Genre");
54 case vlc_meta_Copyright: return _("Copyright");
55 case vlc_meta_Album: return _("Album");
56 case vlc_meta_TrackNumber: return _("Track number");
57 case vlc_meta_Description: return _("Description");
58 case vlc_meta_Rating: return _("Rating");
59 case vlc_meta_Date: return _("Date");
60 case vlc_meta_Setting: return _("Setting");
61 case vlc_meta_URL: return _("URL");
62 case vlc_meta_Language: return _("Language");
63 case vlc_meta_NowPlaying: return _("Now Playing");
64 case vlc_meta_Publisher: return _("Publisher");
65 case vlc_meta_EncodedBy: return _("Encoded by");
66 case vlc_meta_ArtworkURL: return _("Artwork URL");
67 case vlc_meta_TrackID: return _("Track ID");
75 * vlc_meta contructor.
76 * vlc_meta_Delete() will free the returned pointer.
78 vlc_meta_t *vlc_meta_New( void )
80 vlc_meta_t *m = (vlc_meta_t*)malloc( sizeof(*m) );
83 memset( m->ppsz_meta, 0, sizeof(m->ppsz_meta) );
85 vlc_dictionary_init( &m->extra_tags, 0 );
89 /* Free a dictonary key allocated by strdup() in vlc_meta_AddExtra() */
90 static void vlc_meta_FreeExtraKey( void *p_data, void *p_obj )
96 void vlc_meta_Delete( vlc_meta_t *m )
99 for( i = 0; i < VLC_META_TYPE_COUNT ; i++ )
100 free( m->ppsz_meta[i] );
101 vlc_dictionary_clear( &m->extra_tags, vlc_meta_FreeExtraKey, NULL );
106 * vlc_meta has two kinds of meta, the one in a table, and the one in a
108 * FIXME - Why don't we merge those two?
111 void vlc_meta_Set( vlc_meta_t *p_meta, vlc_meta_type_t meta_type, const char *psz_val )
113 free( p_meta->ppsz_meta[meta_type] );
114 p_meta->ppsz_meta[meta_type] = psz_val ? strdup( psz_val ) : NULL;
117 const char *vlc_meta_Get( const vlc_meta_t *p_meta, vlc_meta_type_t meta_type )
119 return p_meta->ppsz_meta[meta_type];
122 void vlc_meta_AddExtra( vlc_meta_t *m, const char *psz_name, const char *psz_value )
124 char *psz_oldvalue = (char *)vlc_dictionary_value_for_key( &m->extra_tags, psz_name );
125 if( psz_oldvalue != kVLCDictionaryNotFound )
126 vlc_dictionary_remove_value_for_key( &m->extra_tags, psz_name,
127 vlc_meta_FreeExtraKey, NULL );
128 vlc_dictionary_insert( &m->extra_tags, psz_name, strdup(psz_value) );
131 const char * vlc_meta_GetExtra( const vlc_meta_t *m, const char *psz_name )
133 return (char *)vlc_dictionary_value_for_key(&m->extra_tags, psz_name);
136 unsigned vlc_meta_GetExtraCount( const vlc_meta_t *m )
138 return vlc_dictionary_keys_count(&m->extra_tags);
141 char** vlc_meta_CopyExtraNames( const vlc_meta_t *m )
143 return vlc_dictionary_all_keys(&m->extra_tags);
147 * vlc_meta status (see vlc_meta_status_e)
149 int vlc_meta_GetStatus( vlc_meta_t *m )
154 void vlc_meta_SetStatus( vlc_meta_t *m, int status )
156 m->i_status = status;
163 void vlc_meta_Merge( vlc_meta_t *dst, const vlc_meta_t *src )
165 char **ppsz_all_keys;
171 for( i = 0; i < VLC_META_TYPE_COUNT; i++ )
173 if( src->ppsz_meta[i] )
175 free( dst->ppsz_meta[i] );
176 dst->ppsz_meta[i] = strdup( src->ppsz_meta[i] );
180 /* XXX: If speed up are needed, it is possible */
181 ppsz_all_keys = vlc_dictionary_all_keys( &src->extra_tags );
182 for( i = 0; ppsz_all_keys && ppsz_all_keys[i]; i++ )
184 /* Always try to remove the previous value */
185 vlc_dictionary_remove_value_for_key( &dst->extra_tags, ppsz_all_keys[i], vlc_meta_FreeExtraKey, NULL );
187 void *p_value = vlc_dictionary_value_for_key( &src->extra_tags, ppsz_all_keys[i] );
188 vlc_dictionary_insert( &dst->extra_tags, ppsz_all_keys[i], strdup( (const char*)p_value ) );
189 free( ppsz_all_keys[i] );
191 free( ppsz_all_keys );
195 void input_ExtractAttachmentAndCacheArt( input_thread_t *p_input )
197 input_item_t *p_item = p_input->p->p_item;
200 char *psz_arturl = input_item_GetArtURL( p_item );
201 if( !psz_arturl || strncmp( psz_arturl, "attachment://", strlen("attachment://") ) )
203 msg_Err( p_input, "internal input error with input_ExtractAttachmentAndCacheArt" );
208 playlist_t *p_playlist = pl_Get( p_input );
210 if( input_item_IsArtFetched( p_item ) )
212 /* XXX Weird, we should not have end up with attachment:// art url unless there is a race
214 msg_Warn( p_input, "internal input error with input_ExtractAttachmentAndCacheArt" );
215 playlist_FindArtInCache( p_item );
220 input_attachment_t *p_attachment = NULL;
222 vlc_mutex_lock( &p_item->lock );
223 for( int i_idx = 0; i_idx < p_input->p->i_attachment; i_idx++ )
225 if( !strcmp( p_input->p->attachment[i_idx]->psz_name,
226 &psz_arturl[strlen("attachment://")] ) )
228 p_attachment = vlc_input_attachment_Duplicate( p_input->p->attachment[i_idx] );
232 vlc_mutex_unlock( &p_item->lock );
234 if( !p_attachment || p_attachment->i_data <= 0 )
237 vlc_input_attachment_Delete( p_attachment );
238 msg_Warn( p_input, "internal input error with input_ExtractAttachmentAndCacheArt" );
243 const char *psz_type = NULL;
244 if( !strcmp( p_attachment->psz_mime, "image/jpeg" ) )
246 else if( !strcmp( p_attachment->psz_mime, "image/png" ) )
250 playlist_SaveArt( p_playlist, p_item,
251 p_attachment->p_data, p_attachment->i_data, psz_type );
253 vlc_input_attachment_Delete( p_attachment );
259 int input_item_WriteMeta( vlc_object_t *obj, input_item_t *p_item )
261 meta_export_t *p_export =
262 vlc_custom_create( obj, sizeof( *p_export ), VLC_OBJECT_GENERIC,
264 if( p_export == NULL )
266 vlc_object_attach( p_export, obj );
267 p_export->p_item = p_item;
270 vlc_mutex_lock( &p_item->lock );
271 type = p_item->i_type;
272 vlc_mutex_unlock( &p_item->lock );
273 if( type != ITEM_TYPE_FILE )
276 char *psz_uri = input_item_GetURI( p_item );
277 p_export->psz_file = make_path( psz_uri );
278 if( p_export->psz_file == NULL )
279 msg_Err( p_export, "cannot write meta to remote media %s", psz_uri );
281 if( p_export->psz_file == NULL )
284 module_t *p_mod = module_need( p_export, "meta writer", NULL, false );
286 module_unneed( p_export, p_mod );
287 vlc_object_release( p_export );
291 vlc_object_release( p_export );