1 /*****************************************************************************
2 * meta.c : Metadata handling
3 *****************************************************************************
4 * Copyright (C) 1998-2004 VLC authors and VideoLAN
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 it
11 * under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this program; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
31 #include <vlc_common.h>
32 #include <vlc_playlist.h>
34 #include <vlc_arrays.h>
35 #include <vlc_modules.h>
36 #include <vlc_charset.h>
38 #include "input_internal.h"
39 #include "../playlist/art.h"
43 char * ppsz_meta[VLC_META_TYPE_COUNT];
45 vlc_dictionary_t extra_tags;
50 /* FIXME bad name convention */
51 const char * vlc_meta_TypeToLocalizedString( vlc_meta_type_t meta_type )
53 static const char posix_names[][17] =
55 [vlc_meta_Title] = N_("Title"),
56 [vlc_meta_Artist] = N_("Artist"),
57 [vlc_meta_Genre] = N_("Genre"),
58 [vlc_meta_Copyright] = N_("Copyright"),
59 [vlc_meta_Album] = N_("Album"),
60 [vlc_meta_TrackNumber] = N_("Track number"),
61 [vlc_meta_Description] = N_("Description"),
62 [vlc_meta_Rating] = N_("Rating"),
63 [vlc_meta_Date] = N_("Date"),
64 [vlc_meta_Setting] = N_("Setting"),
65 [vlc_meta_URL] = N_("URL"),
66 [vlc_meta_Language] = N_("Language"),
67 [vlc_meta_NowPlaying] = N_("Now Playing"),
68 [vlc_meta_Publisher] = N_("Publisher"),
69 [vlc_meta_EncodedBy] = N_("Encoded by"),
70 [vlc_meta_ArtworkURL] = N_("Artwork URL"),
71 [vlc_meta_TrackID] = N_("Track ID"),
72 [vlc_meta_TrackTotal] = N_("Number of Tracks"),
73 [vlc_meta_Director] = N_("Director"),
74 [vlc_meta_Season] = N_("Season"),
75 [vlc_meta_Episode] = N_("Episode"),
76 [vlc_meta_ShowName] = N_("Show Name"),
77 [vlc_meta_Actors] = N_("Actors"),
80 assert (meta_type < (sizeof(posix_names) / sizeof(posix_names[0])));
81 return vlc_gettext (posix_names[meta_type]);
86 * vlc_meta contructor.
87 * vlc_meta_Delete() will free the returned pointer.
89 vlc_meta_t *vlc_meta_New( void )
91 vlc_meta_t *m = (vlc_meta_t*)malloc( sizeof(*m) );
94 memset( m->ppsz_meta, 0, sizeof(m->ppsz_meta) );
96 vlc_dictionary_init( &m->extra_tags, 0 );
100 /* Free a dictonary key allocated by strdup() in vlc_meta_AddExtra() */
101 static void vlc_meta_FreeExtraKey( void *p_data, void *p_obj )
107 void vlc_meta_Delete( vlc_meta_t *m )
110 for( i = 0; i < VLC_META_TYPE_COUNT ; i++ )
111 free( m->ppsz_meta[i] );
112 vlc_dictionary_clear( &m->extra_tags, vlc_meta_FreeExtraKey, NULL );
117 * vlc_meta has two kinds of meta, the one in a table, and the one in a
119 * FIXME - Why don't we merge those two?
122 void vlc_meta_Set( vlc_meta_t *p_meta, vlc_meta_type_t meta_type, const char *psz_val )
124 free( p_meta->ppsz_meta[meta_type] );
125 assert( psz_val == NULL || IsUTF8( psz_val ) );
126 p_meta->ppsz_meta[meta_type] = psz_val ? strdup( psz_val ) : NULL;
129 const char *vlc_meta_Get( const vlc_meta_t *p_meta, vlc_meta_type_t meta_type )
131 return p_meta->ppsz_meta[meta_type];
134 void vlc_meta_AddExtra( vlc_meta_t *m, const char *psz_name, const char *psz_value )
136 char *psz_oldvalue = (char *)vlc_dictionary_value_for_key( &m->extra_tags, psz_name );
137 if( psz_oldvalue != kVLCDictionaryNotFound )
138 vlc_dictionary_remove_value_for_key( &m->extra_tags, psz_name,
139 vlc_meta_FreeExtraKey, NULL );
140 vlc_dictionary_insert( &m->extra_tags, psz_name, strdup(psz_value) );
143 const char * vlc_meta_GetExtra( const vlc_meta_t *m, const char *psz_name )
145 return (char *)vlc_dictionary_value_for_key(&m->extra_tags, psz_name);
148 unsigned vlc_meta_GetExtraCount( const vlc_meta_t *m )
150 return vlc_dictionary_keys_count(&m->extra_tags);
153 char** vlc_meta_CopyExtraNames( const vlc_meta_t *m )
155 return vlc_dictionary_all_keys(&m->extra_tags);
159 * vlc_meta status (see vlc_meta_status_e)
161 int vlc_meta_GetStatus( vlc_meta_t *m )
166 void vlc_meta_SetStatus( vlc_meta_t *m, int status )
168 m->i_status = status;
175 void vlc_meta_Merge( vlc_meta_t *dst, const vlc_meta_t *src )
177 char **ppsz_all_keys;
183 for( i = 0; i < VLC_META_TYPE_COUNT; i++ )
185 if( src->ppsz_meta[i] )
187 free( dst->ppsz_meta[i] );
188 dst->ppsz_meta[i] = strdup( src->ppsz_meta[i] );
192 /* XXX: If speed up are needed, it is possible */
193 ppsz_all_keys = vlc_dictionary_all_keys( &src->extra_tags );
194 for( i = 0; ppsz_all_keys && ppsz_all_keys[i]; i++ )
196 /* Always try to remove the previous value */
197 vlc_dictionary_remove_value_for_key( &dst->extra_tags, ppsz_all_keys[i], vlc_meta_FreeExtraKey, NULL );
199 void *p_value = vlc_dictionary_value_for_key( &src->extra_tags, ppsz_all_keys[i] );
200 vlc_dictionary_insert( &dst->extra_tags, ppsz_all_keys[i], strdup( (const char*)p_value ) );
201 free( ppsz_all_keys[i] );
203 free( ppsz_all_keys );
207 void input_ExtractAttachmentAndCacheArt( input_thread_t *p_input )
209 input_item_t *p_item = p_input->p->p_item;
212 char *psz_arturl = input_item_GetArtURL( p_item );
213 if( !psz_arturl || strncmp( psz_arturl, "attachment://", strlen("attachment://") ) )
215 msg_Err( p_input, "internal input error with input_ExtractAttachmentAndCacheArt" );
220 if( input_item_IsArtFetched( p_item ) )
222 /* XXX Weird, we should not have end up with attachment:// art url unless there is a race
224 msg_Warn( p_input, "internal input error with input_ExtractAttachmentAndCacheArt" );
225 playlist_FindArtInCache( p_item );
230 input_attachment_t *p_attachment = NULL;
232 vlc_mutex_lock( &p_item->lock );
233 for( int i_idx = 0; i_idx < p_input->p->i_attachment; i_idx++ )
235 if( !strcmp( p_input->p->attachment[i_idx]->psz_name,
236 &psz_arturl[strlen("attachment://")] ) )
238 p_attachment = vlc_input_attachment_Duplicate( p_input->p->attachment[i_idx] );
242 vlc_mutex_unlock( &p_item->lock );
244 if( !p_attachment || p_attachment->i_data <= 0 )
247 vlc_input_attachment_Delete( p_attachment );
248 msg_Warn( p_input, "internal input error with input_ExtractAttachmentAndCacheArt" );
253 const char *psz_type = NULL;
254 if( !strcmp( p_attachment->psz_mime, "image/jpeg" ) )
256 else if( !strcmp( p_attachment->psz_mime, "image/png" ) )
260 playlist_SaveArt( VLC_OBJECT(p_input), p_item,
261 p_attachment->p_data, p_attachment->i_data, psz_type );
263 vlc_input_attachment_Delete( p_attachment );
269 int input_item_WriteMeta( vlc_object_t *obj, input_item_t *p_item )
271 meta_export_t *p_export =
272 vlc_custom_create( obj, sizeof( *p_export ), "meta writer" );
273 if( p_export == NULL )
275 p_export->p_item = p_item;
278 vlc_mutex_lock( &p_item->lock );
279 type = p_item->i_type;
280 vlc_mutex_unlock( &p_item->lock );
281 if( type != ITEM_TYPE_FILE )
284 char *psz_uri = input_item_GetURI( p_item );
285 p_export->psz_file = make_path( psz_uri );
286 if( p_export->psz_file == NULL )
287 msg_Err( p_export, "cannot write meta to remote media %s", psz_uri );
289 if( p_export->psz_file == NULL )
292 module_t *p_mod = module_need( p_export, "meta writer", NULL, false );
294 module_unneed( p_export, p_mod );
295 vlc_object_release( p_export );
299 vlc_object_release( p_export );
303 void vlc_audio_replay_gain_MergeFromMeta( audio_replay_gain_t *p_dst,
304 const vlc_meta_t *p_meta )
306 const char * psz_value;
311 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_TRACK_GAIN")) ||
312 (psz_value = vlc_meta_GetExtra(p_meta, "RG_RADIO")) )
314 p_dst->pb_gain[AUDIO_REPLAY_GAIN_TRACK] = true;
315 p_dst->pf_gain[AUDIO_REPLAY_GAIN_TRACK] = us_atof( psz_value );
318 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_TRACK_PEAK" )) ||
319 (psz_value = vlc_meta_GetExtra(p_meta, "RG_PEAK" )) )
321 p_dst->pb_peak[AUDIO_REPLAY_GAIN_TRACK] = true;
322 p_dst->pf_peak[AUDIO_REPLAY_GAIN_TRACK] = us_atof( psz_value );
325 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_ALBUM_GAIN" )) ||
326 (psz_value = vlc_meta_GetExtra(p_meta, "RG_AUDIOPHILE" )) )
328 p_dst->pb_gain[AUDIO_REPLAY_GAIN_ALBUM] = true;
329 p_dst->pf_gain[AUDIO_REPLAY_GAIN_ALBUM] = us_atof( psz_value );
332 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_ALBUM_PEAK" )) )
334 p_dst->pb_peak[AUDIO_REPLAY_GAIN_ALBUM] = true;
335 p_dst->pf_peak[AUDIO_REPLAY_GAIN_ALBUM] = us_atof( psz_value );