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[][18] =
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_ESNowPlaying]= N_("Now Playing"),
68 [vlc_meta_NowPlaying] = N_("Now Playing"),
69 [vlc_meta_Publisher] = N_("Publisher"),
70 [vlc_meta_EncodedBy] = N_("Encoded by"),
71 [vlc_meta_ArtworkURL] = N_("Artwork URL"),
72 [vlc_meta_TrackID] = N_("Track ID"),
73 [vlc_meta_TrackTotal] = N_("Number of Tracks"),
74 [vlc_meta_Director] = N_("Director"),
75 [vlc_meta_Season] = N_("Season"),
76 [vlc_meta_Episode] = N_("Episode"),
77 [vlc_meta_ShowName] = N_("Show Name"),
78 [vlc_meta_Actors] = N_("Actors"),
79 [vlc_meta_AlbumArtist] = N_("Album Artist"),
80 [vlc_meta_DiscNumber] = N_("DiscNumber")
83 assert (meta_type < (sizeof(posix_names) / sizeof(posix_names[0])));
84 return vlc_gettext (posix_names[meta_type]);
89 * vlc_meta contructor.
90 * vlc_meta_Delete() will free the returned pointer.
92 vlc_meta_t *vlc_meta_New( void )
94 vlc_meta_t *m = (vlc_meta_t*)malloc( sizeof(*m) );
97 memset( m->ppsz_meta, 0, sizeof(m->ppsz_meta) );
99 vlc_dictionary_init( &m->extra_tags, 0 );
103 /* Free a dictonary key allocated by strdup() in vlc_meta_AddExtra() */
104 static void vlc_meta_FreeExtraKey( void *p_data, void *p_obj )
110 void vlc_meta_Delete( vlc_meta_t *m )
113 for( i = 0; i < VLC_META_TYPE_COUNT ; i++ )
114 free( m->ppsz_meta[i] );
115 vlc_dictionary_clear( &m->extra_tags, vlc_meta_FreeExtraKey, NULL );
120 * vlc_meta has two kinds of meta, the one in a table, and the one in a
122 * FIXME - Why don't we merge those two?
125 void vlc_meta_Set( vlc_meta_t *p_meta, vlc_meta_type_t meta_type, const char *psz_val )
127 free( p_meta->ppsz_meta[meta_type] );
128 assert( psz_val == NULL || IsUTF8( psz_val ) );
129 p_meta->ppsz_meta[meta_type] = psz_val ? strdup( psz_val ) : NULL;
132 const char *vlc_meta_Get( const vlc_meta_t *p_meta, vlc_meta_type_t meta_type )
134 return p_meta->ppsz_meta[meta_type];
137 void vlc_meta_AddExtra( vlc_meta_t *m, const char *psz_name, const char *psz_value )
139 char *psz_oldvalue = (char *)vlc_dictionary_value_for_key( &m->extra_tags, psz_name );
140 if( psz_oldvalue != kVLCDictionaryNotFound )
141 vlc_dictionary_remove_value_for_key( &m->extra_tags, psz_name,
142 vlc_meta_FreeExtraKey, NULL );
143 vlc_dictionary_insert( &m->extra_tags, psz_name, strdup(psz_value) );
146 const char * vlc_meta_GetExtra( const vlc_meta_t *m, const char *psz_name )
148 return (char *)vlc_dictionary_value_for_key(&m->extra_tags, psz_name);
151 unsigned vlc_meta_GetExtraCount( const vlc_meta_t *m )
153 return vlc_dictionary_keys_count(&m->extra_tags);
156 char** vlc_meta_CopyExtraNames( const vlc_meta_t *m )
158 return vlc_dictionary_all_keys(&m->extra_tags);
162 * vlc_meta status (see vlc_meta_status_e)
164 int vlc_meta_GetStatus( vlc_meta_t *m )
169 void vlc_meta_SetStatus( vlc_meta_t *m, int status )
171 m->i_status = status;
178 void vlc_meta_Merge( vlc_meta_t *dst, const vlc_meta_t *src )
180 char **ppsz_all_keys;
186 for( i = 0; i < VLC_META_TYPE_COUNT; i++ )
188 if( src->ppsz_meta[i] )
190 free( dst->ppsz_meta[i] );
191 dst->ppsz_meta[i] = strdup( src->ppsz_meta[i] );
195 /* XXX: If speed up are needed, it is possible */
196 ppsz_all_keys = vlc_dictionary_all_keys( &src->extra_tags );
197 for( i = 0; ppsz_all_keys && ppsz_all_keys[i]; i++ )
199 /* Always try to remove the previous value */
200 vlc_dictionary_remove_value_for_key( &dst->extra_tags, ppsz_all_keys[i], vlc_meta_FreeExtraKey, NULL );
202 void *p_value = vlc_dictionary_value_for_key( &src->extra_tags, ppsz_all_keys[i] );
203 vlc_dictionary_insert( &dst->extra_tags, ppsz_all_keys[i], strdup( (const char*)p_value ) );
204 free( ppsz_all_keys[i] );
206 free( ppsz_all_keys );
210 void input_ExtractAttachmentAndCacheArt( input_thread_t *p_input,
213 input_item_t *p_item = p_input->p->p_item;
215 if( input_item_IsArtFetched( p_item ) )
216 { /* XXX Weird, we should not end up with attachment:// art URL
217 * unless there is a race condition */
218 msg_Warn( p_input, "art already fetched" );
219 playlist_FindArtInCache( p_item );
224 input_attachment_t *p_attachment = NULL;
226 vlc_mutex_lock( &p_item->lock );
227 for( int i_idx = 0; i_idx < p_input->p->i_attachment; i_idx++ )
229 input_attachment_t *a = p_input->p->attachment[i_idx];
231 if( !strcmp( a->psz_name, name ) )
233 p_attachment = vlc_input_attachment_Duplicate( a );
237 vlc_mutex_unlock( &p_item->lock );
239 if( p_attachment == NULL )
241 msg_Warn( p_input, "art attachment %s not found", name );
246 const char *psz_type = NULL;
248 if( !strcmp( p_attachment->psz_mime, "image/jpeg" ) )
250 else if( !strcmp( p_attachment->psz_mime, "image/png" ) )
252 else if( !strcmp( p_attachment->psz_mime, "image/x-pict" ) )
255 playlist_SaveArt( VLC_OBJECT(p_input), p_item,
256 p_attachment->p_data, p_attachment->i_data, psz_type );
257 vlc_input_attachment_Delete( p_attachment );
260 int input_item_WriteMeta( vlc_object_t *obj, input_item_t *p_item )
262 meta_export_t *p_export =
263 vlc_custom_create( obj, sizeof( *p_export ), "meta writer" );
264 if( p_export == NULL )
266 p_export->p_item = p_item;
269 vlc_mutex_lock( &p_item->lock );
270 type = p_item->i_type;
271 vlc_mutex_unlock( &p_item->lock );
272 if( type != ITEM_TYPE_FILE )
275 char *psz_uri = input_item_GetURI( p_item );
276 p_export->psz_file = make_path( psz_uri );
277 if( p_export->psz_file == NULL )
278 msg_Err( p_export, "cannot write meta to remote media %s", psz_uri );
280 if( p_export->psz_file == NULL )
283 module_t *p_mod = module_need( p_export, "meta writer", NULL, false );
285 module_unneed( p_export, p_mod );
286 vlc_object_release( p_export );
290 vlc_object_release( p_export );
294 void vlc_audio_replay_gain_MergeFromMeta( audio_replay_gain_t *p_dst,
295 const vlc_meta_t *p_meta )
297 const char * psz_value;
302 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_TRACK_GAIN")) ||
303 (psz_value = vlc_meta_GetExtra(p_meta, "RG_RADIO")) )
305 p_dst->pb_gain[AUDIO_REPLAY_GAIN_TRACK] = true;
306 p_dst->pf_gain[AUDIO_REPLAY_GAIN_TRACK] = us_atof( psz_value );
309 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_TRACK_PEAK" )) ||
310 (psz_value = vlc_meta_GetExtra(p_meta, "RG_PEAK" )) )
312 p_dst->pb_peak[AUDIO_REPLAY_GAIN_TRACK] = true;
313 p_dst->pf_peak[AUDIO_REPLAY_GAIN_TRACK] = us_atof( psz_value );
316 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_ALBUM_GAIN" )) ||
317 (psz_value = vlc_meta_GetExtra(p_meta, "RG_AUDIOPHILE" )) )
319 p_dst->pb_gain[AUDIO_REPLAY_GAIN_ALBUM] = true;
320 p_dst->pf_gain[AUDIO_REPLAY_GAIN_ALBUM] = us_atof( psz_value );
323 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_ALBUM_PEAK" )) )
325 p_dst->pb_peak[AUDIO_REPLAY_GAIN_ALBUM] = true;
326 p_dst->pf_peak[AUDIO_REPLAY_GAIN_ALBUM] = us_atof( psz_value );