1 /*****************************************************************************
2 * meta.c : Metadata handling
3 *****************************************************************************
4 * Copyright (C) 1998-2004 VLC authors and VideoLAN
5 * $Id: 241b926079ff186952b18c3ff7dedab377ea6705 $
6 *
7 * Authors: Antoine Cellerier <dionoea@videolan.org>
8 * Clément Stenac <zorglub@videolan.org
9 *
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.
14 *
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.
19 *
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 *****************************************************************************/
24
25 #ifdef HAVE_CONFIG_H
26 # include "config.h"
27 #endif
28
29 #include <assert.h>
30
31 #include <vlc_common.h>
32 #include <vlc_playlist.h>
33 #include <vlc_url.h>
34 #include <vlc_arrays.h>
35 #include <vlc_modules.h>
36 #include <vlc_charset.h>
37
38 #include "input_internal.h"
39 #include "../playlist/art.h"
40
41 struct vlc_meta_t
42 {
43 char * ppsz_meta[VLC_META_TYPE_COUNT];
44
45 vlc_dictionary_t extra_tags;
46
47 int i_status;
48 };
49
50 /* FIXME bad name convention */
vlc_meta_TypeToLocalizedString(vlc_meta_type_t meta_type)51 const char * vlc_meta_TypeToLocalizedString( vlc_meta_type_t meta_type )
52 {
53 static const char posix_names[][18] =
54 {
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_("Disc number")
81 };
82
83 assert (meta_type < (sizeof(posix_names) / sizeof(posix_names[0])));
84 return vlc_gettext (posix_names[meta_type]);
85 };
86
87
88 /**
89 * vlc_meta contructor.
90 * vlc_meta_Delete() will free the returned pointer.
91 */
vlc_meta_New(void)92 vlc_meta_t *vlc_meta_New( void )
93 {
94 vlc_meta_t *m = (vlc_meta_t*)malloc( sizeof(*m) );
95 if( !m )
96 return NULL;
97 memset( m->ppsz_meta, 0, sizeof(m->ppsz_meta) );
98 m->i_status = 0;
99 vlc_dictionary_init( &m->extra_tags, 0 );
100 return m;
101 }
102
103 /* Free a dictonary key allocated by strdup() in vlc_meta_AddExtra() */
vlc_meta_FreeExtraKey(void * p_data,void * p_obj)104 static void vlc_meta_FreeExtraKey( void *p_data, void *p_obj )
105 {
106 VLC_UNUSED( p_obj );
107 free( p_data );
108 }
109
vlc_meta_Delete(vlc_meta_t * m)110 void vlc_meta_Delete( vlc_meta_t *m )
111 {
112 for( int i = 0; i < VLC_META_TYPE_COUNT ; i++ )
113 free( m->ppsz_meta[i] );
114 vlc_dictionary_clear( &m->extra_tags, vlc_meta_FreeExtraKey, NULL );
115 free( m );
116 }
117
118 /**
119 * vlc_meta has two kinds of meta, the one in a table, and the one in a
120 * dictionary.
121 * FIXME - Why don't we merge those two?
122 */
123
vlc_meta_Set(vlc_meta_t * p_meta,vlc_meta_type_t meta_type,const char * psz_val)124 void vlc_meta_Set( vlc_meta_t *p_meta, vlc_meta_type_t meta_type, const char *psz_val )
125 {
126 free( p_meta->ppsz_meta[meta_type] );
127 assert( psz_val == NULL || IsUTF8( psz_val ) );
128 p_meta->ppsz_meta[meta_type] = psz_val ? strdup( psz_val ) : NULL;
129 }
130
vlc_meta_Get(const vlc_meta_t * p_meta,vlc_meta_type_t meta_type)131 const char *vlc_meta_Get( const vlc_meta_t *p_meta, vlc_meta_type_t meta_type )
132 {
133 return p_meta->ppsz_meta[meta_type];
134 }
135
vlc_meta_AddExtra(vlc_meta_t * m,const char * psz_name,const char * psz_value)136 void vlc_meta_AddExtra( vlc_meta_t *m, const char *psz_name, const char *psz_value )
137 {
138 char *psz_oldvalue = (char *)vlc_dictionary_value_for_key( &m->extra_tags, psz_name );
139 if( psz_oldvalue != kVLCDictionaryNotFound )
140 vlc_dictionary_remove_value_for_key( &m->extra_tags, psz_name,
141 vlc_meta_FreeExtraKey, NULL );
142 vlc_dictionary_insert( &m->extra_tags, psz_name, strdup(psz_value) );
143 }
144
vlc_meta_GetExtra(const vlc_meta_t * m,const char * psz_name)145 const char * vlc_meta_GetExtra( const vlc_meta_t *m, const char *psz_name )
146 {
147 return (char *)vlc_dictionary_value_for_key(&m->extra_tags, psz_name);
148 }
149
vlc_meta_GetExtraCount(const vlc_meta_t * m)150 unsigned vlc_meta_GetExtraCount( const vlc_meta_t *m )
151 {
152 return vlc_dictionary_keys_count(&m->extra_tags);
153 }
154
vlc_meta_CopyExtraNames(const vlc_meta_t * m)155 char** vlc_meta_CopyExtraNames( const vlc_meta_t *m )
156 {
157 return vlc_dictionary_all_keys(&m->extra_tags);
158 }
159
160 /**
161 * vlc_meta status (see vlc_meta_status_e)
162 */
vlc_meta_GetStatus(vlc_meta_t * m)163 int vlc_meta_GetStatus( vlc_meta_t *m )
164 {
165 return m->i_status;
166 }
167
vlc_meta_SetStatus(vlc_meta_t * m,int status)168 void vlc_meta_SetStatus( vlc_meta_t *m, int status )
169 {
170 m->i_status = status;
171 }
172
173
174 /**
175 * Merging meta
176 */
vlc_meta_Merge(vlc_meta_t * dst,const vlc_meta_t * src)177 void vlc_meta_Merge( vlc_meta_t *dst, const vlc_meta_t *src )
178 {
179 if( !dst || !src )
180 return;
181
182 for( int i = 0; i < VLC_META_TYPE_COUNT; i++ )
183 {
184 if( src->ppsz_meta[i] )
185 {
186 free( dst->ppsz_meta[i] );
187 dst->ppsz_meta[i] = strdup( src->ppsz_meta[i] );
188 }
189 }
190
191 /* XXX: If speed up are needed, it is possible */
192 char **ppsz_all_keys = vlc_dictionary_all_keys( &src->extra_tags );
193 for( int i = 0; ppsz_all_keys && ppsz_all_keys[i]; i++ )
194 {
195 /* Always try to remove the previous value */
196 vlc_dictionary_remove_value_for_key( &dst->extra_tags, ppsz_all_keys[i], vlc_meta_FreeExtraKey, NULL );
197
198 void *p_value = vlc_dictionary_value_for_key( &src->extra_tags, ppsz_all_keys[i] );
199 vlc_dictionary_insert( &dst->extra_tags, ppsz_all_keys[i], strdup( (const char*)p_value ) );
200 free( ppsz_all_keys[i] );
201 }
202 free( ppsz_all_keys );
203 }
204
205
input_ExtractAttachmentAndCacheArt(input_thread_t * p_input,const char * name)206 void input_ExtractAttachmentAndCacheArt( input_thread_t *p_input,
207 const char *name )
208 {
209 input_item_t *p_item = input_priv(p_input)->p_item;
210
211 if( input_item_IsArtFetched( p_item ) )
212 { /* XXX Weird, we should not end up with attachment:// art URL
213 * unless there is a race condition */
214 msg_Warn( p_input, "art already fetched" );
215 if( likely(playlist_FindArtInCache( p_item ) == VLC_SUCCESS) )
216 return;
217 }
218
219 /* */
220 input_attachment_t *p_attachment = NULL;
221
222 vlc_mutex_lock( &p_item->lock );
223 for( int i_idx = 0; i_idx < input_priv(p_input)->i_attachment; i_idx++ )
224 {
225 input_attachment_t *a = input_priv(p_input)->attachment[i_idx];
226
227 if( !strcmp( a->psz_name, name ) )
228 {
229 p_attachment = vlc_input_attachment_Duplicate( a );
230 break;
231 }
232 }
233 vlc_mutex_unlock( &p_item->lock );
234
235 if( p_attachment == NULL )
236 {
237 msg_Warn( p_input, "art attachment %s not found", name );
238 return;
239 }
240
241 /* */
242 const char *psz_type = NULL;
243
244 if( !strcmp( p_attachment->psz_mime, "image/jpeg" ) )
245 psz_type = ".jpg";
246 else if( !strcmp( p_attachment->psz_mime, "image/png" ) )
247 psz_type = ".png";
248 else if( !strcmp( p_attachment->psz_mime, "image/x-pict" ) )
249 psz_type = ".pct";
250
251 playlist_SaveArt( VLC_OBJECT(p_input), p_item,
252 p_attachment->p_data, p_attachment->i_data, psz_type );
253 vlc_input_attachment_Delete( p_attachment );
254 }
255
input_item_WriteMeta(vlc_object_t * obj,input_item_t * p_item)256 int input_item_WriteMeta( vlc_object_t *obj, input_item_t *p_item )
257 {
258 meta_export_t *p_export =
259 vlc_custom_create( obj, sizeof( *p_export ), "meta writer" );
260 if( p_export == NULL )
261 return VLC_ENOMEM;
262 p_export->p_item = p_item;
263
264 int type;
265 vlc_mutex_lock( &p_item->lock );
266 type = p_item->i_type;
267 vlc_mutex_unlock( &p_item->lock );
268 if( type != ITEM_TYPE_FILE )
269 goto error;
270
271 char *psz_uri = input_item_GetURI( p_item );
272 p_export->psz_file = vlc_uri2path( psz_uri );
273 if( p_export->psz_file == NULL )
274 msg_Err( p_export, "cannot write meta to remote media %s", psz_uri );
275 free( psz_uri );
276 if( p_export->psz_file == NULL )
277 goto error;
278
279 module_t *p_mod = module_need( p_export, "meta writer", NULL, false );
280 if( p_mod )
281 module_unneed( p_export, p_mod );
282 vlc_object_release( p_export );
283 return VLC_SUCCESS;
284
285 error:
286 vlc_object_release( p_export );
287 return VLC_EGENERIC;
288 }
289
vlc_audio_replay_gain_MergeFromMeta(audio_replay_gain_t * p_dst,const vlc_meta_t * p_meta)290 void vlc_audio_replay_gain_MergeFromMeta( audio_replay_gain_t *p_dst,
291 const vlc_meta_t *p_meta )
292 {
293 const char * psz_value;
294
295 if( !p_meta )
296 return;
297
298 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_TRACK_GAIN")) ||
299 (psz_value = vlc_meta_GetExtra(p_meta, "RG_RADIO")) )
300 {
301 p_dst->pb_gain[AUDIO_REPLAY_GAIN_TRACK] = true;
302 p_dst->pf_gain[AUDIO_REPLAY_GAIN_TRACK] = us_atof( psz_value );
303 }
304
305 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_TRACK_PEAK" )) ||
306 (psz_value = vlc_meta_GetExtra(p_meta, "RG_PEAK" )) )
307 {
308 p_dst->pb_peak[AUDIO_REPLAY_GAIN_TRACK] = true;
309 p_dst->pf_peak[AUDIO_REPLAY_GAIN_TRACK] = us_atof( psz_value );
310 }
311
312 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_ALBUM_GAIN" )) ||
313 (psz_value = vlc_meta_GetExtra(p_meta, "RG_AUDIOPHILE" )) )
314 {
315 p_dst->pb_gain[AUDIO_REPLAY_GAIN_ALBUM] = true;
316 p_dst->pf_gain[AUDIO_REPLAY_GAIN_ALBUM] = us_atof( psz_value );
317 }
318
319 if( (psz_value = vlc_meta_GetExtra(p_meta, "REPLAYGAIN_ALBUM_PEAK" )) )
320 {
321 p_dst->pb_peak[AUDIO_REPLAY_GAIN_ALBUM] = true;
322 p_dst->pf_peak[AUDIO_REPLAY_GAIN_ALBUM] = us_atof( psz_value );
323 }
324 }
325