1 /*****************************************************************************
2 * taglib.cpp: Taglib tag parser/writer
3 *****************************************************************************
4 * Copyright (C) 2003-2006 the VideoLAN team
7 * Authors: Clément Stenac <zorglub@videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
25 #include <vlc_playlist.h>
27 #include <vlc_demux.h>
36 #include <oggflacfile.h>
39 #include <flacproperties.h>
40 #include <vorbisfile.h>
41 #include <vorbisproperties.h>
42 #include <uniquefileidentifierframe.h>
43 #include <textidentificationframe.h>
44 #if 0 /* parse the tags without taglib helpers? */
45 #include <relativevolumeframe.h>
48 static int ReadMeta ( vlc_object_t * );
49 static int DownloadArt ( vlc_object_t * );
50 static int WriteMeta ( vlc_object_t * );
53 set_capability( "meta reader", 1000 );
54 set_callbacks( ReadMeta, NULL );
56 set_capability( "art downloader", 50 );
57 set_callbacks( DownloadArt, NULL );
59 set_capability( "meta writer", 50 );
60 set_callbacks( WriteMeta, NULL );
63 static bool checkID3Image( const TagLib::ID3v2::Tag *tag )
65 TagLib::ID3v2::FrameList l = tag->frameListMap()[ "APIC" ];
69 /* Try detecting embedded art */
70 static void DetectImage( TagLib::FileRef f, vlc_meta_t *p_meta )
72 if( TagLib::MPEG::File *mpeg =
73 dynamic_cast<TagLib::MPEG::File *>(f.file() ) )
75 if( mpeg->ID3v2Tag() && checkID3Image( mpeg->ID3v2Tag() ) )
76 vlc_meta_SetArtURL( p_meta, "APIC" );
78 else if( TagLib::FLAC::File *flac =
79 dynamic_cast<TagLib::FLAC::File *>(f.file() ) )
81 if( flac->ID3v2Tag() && checkID3Image( flac->ID3v2Tag() ) )
82 vlc_meta_SetArtURL( p_meta, "APIC" );
85 /* This needs special additions to taglib */
86 * else if( TagLib::MP4::File *mp4 =
87 dynamic_cast<TagLib::MP4::File *>( f.file() ) )
89 TagLib::MP4::Tag *mp4tag =
90 dynamic_cast<TagLib::MP4::Tag *>( mp4->tag() );
91 if( mp4tag && mp4tag->cover().size() )
92 vlc_meta_SetArtURL( p_meta, "MP4C" );
97 static int ReadMeta( vlc_object_t *p_this )
99 demux_t *p_demux = (demux_t *)p_this;
101 if( strncmp( p_demux->psz_access, "file", 4 ) )
104 TagLib::FileRef f( p_demux->psz_path );
108 if ( !f.tag() || f.tag()->isEmpty() )
111 if( !p_demux->p_private )
112 p_demux->p_private = (void*)vlc_meta_New();
113 vlc_meta_t *p_meta = (vlc_meta_t *)(p_demux->p_private );
114 TagLib::Tag *tag = f.tag();
116 if( TagLib::MPEG::File *p_mpeg =
117 dynamic_cast<TagLib::MPEG::File *>(f.file() ) )
119 if( p_mpeg->ID3v2Tag() )
121 TagLib::ID3v2::Tag *tag = p_mpeg->ID3v2Tag();
122 TagLib::ID3v2::FrameList list = tag->frameListMap()["UFID"];
123 TagLib::ID3v2::UniqueFileIdentifierFrame* p_ufid;
124 for( TagLib::ID3v2::FrameList::Iterator iter = list.begin();
125 iter != list.end(); iter++ )
127 p_ufid = dynamic_cast<TagLib::ID3v2::UniqueFileIdentifierFrame*>(*iter);
128 const char *owner = p_ufid->owner().toCString();
129 if (!strcmp( owner, "http://musicbrainz.org" ))
131 /* ID3v2 UFID contains up to 64 bytes binary data
132 * but in our case it will be a '\0'
133 * terminated string */
134 char *psz_ufid = (char*) malloc( 64 );
137 ( j < p_ufid->identifier().size() ) )
138 psz_ufid[j] = p_ufid->identifier()[j++];
140 vlc_meta_SetTrackID( p_meta, psz_ufid );
145 list = tag->frameListMap()["TXXX"];
146 TagLib::ID3v2::UserTextIdentificationFrame* p_txxx;
147 for( TagLib::ID3v2::FrameList::Iterator iter = list.begin();
148 iter != list.end(); iter++ )
150 p_txxx = dynamic_cast<TagLib::ID3v2::UserTextIdentificationFrame*>(*iter);
151 const char *psz_desc= p_txxx->description().toCString();
152 #if 0 /* musicbrainz artist and album id: not useful (yet?) */
153 if( !strncmp( psz_desc, "MusicBrainz Artist Id", 21 ) )
154 vlc_meta_SetArtistID( p_meta,
155 p_txxx->fieldList().toString().toCString());
156 if( !strncmp( psz_desc, "MusicBrainz Album Id", 20 ) )
157 vlc_meta_SetAlbumID( p_meta,
158 p_txxx->fieldList().toString().toCString());
160 vlc_meta_AddExtra( p_meta, psz_desc,
161 p_txxx->fieldList().toString().toCString());
164 list = tag->frameListMap()["RVA2"];
165 TagLib::ID3v2::RelativeVolumeFrame* p_rva2;
166 for( TagLib::ID3v2::FrameList::Iterator iter = list.begin();
167 iter != list.end(); iter++ )
169 p_rva2 = dynamic_cast<TagLib::ID3v2::RelativeVolumeFrame*>(*iter);
170 /* TODO: process rva2 frames */
173 list = tag->frameList();
174 TagLib::ID3v2::Frame* p_t;
176 for( TagLib::ID3v2::FrameList::Iterator iter = list.begin();
177 iter != list.end(); iter++ )
179 p_t = dynamic_cast<TagLib::ID3v2::Frame*> (*iter);
180 memcpy( psz_tag, p_t->frameID().data(), 4);
182 #define SET( foo, bar ) if( !strncmp( psz_tag, foo, 4 ) ) \
183 vlc_meta_Set##bar( p_meta, p_t->toString().toCString(true))
184 SET( "TPUB", Publisher );
185 SET( "TCOP", Copyright );
186 SET( "TENC", EncodedBy );
187 SET( "TLAN", Language );
188 //SET( "POPM", Rating ); /* rating needs special handling in id3v2 */
189 //if( !strncmp( psz_tag, "RVA2", 4 ) )
196 else if( TagLib::Ogg::Vorbis::File *p_ogg_v =
197 dynamic_cast<TagLib::Ogg::Vorbis::File *>(f.file() ) )
199 int i_ogg_v_length = p_ogg_v->audioProperties()->length();
201 input_thread_t *p_input = (input_thread_t *)
202 vlc_object_find( p_demux,VLC_OBJECT_INPUT, FIND_PARENT );
205 input_item_t *p_item = input_GetItem( p_input );
208 vlc_mutex_lock( &p_item->lock );
209 p_item->i_duration = i_ogg_v_length * 1000000;
210 vlc_mutex_unlock( &p_item->lock );
212 vlc_object_release( p_input );
216 #if 0 /* at this moment, taglib is unable to detect ogg/flac files
217 * becauses type detection is based on file extension:
222 else if( TagLib::Ogg::FLAC::File *p_ogg_f =
223 dynamic_cast<TagLib::Ogg::FLAC::File *>(f.file() ) )
225 long i_ogg_f_length = p_ogg_f->streamLength();
226 input_thread_t *p_input = (input_thread_t *)
227 vlc_object_find( p_demux, VLC_OBJECT_INPUT, FIND_PARENT );
230 input_item_t *p_item = input_GetItem( p_input );
233 vlc_mutex_lock( &p_item->lock );
234 p_item->i_duration = i_ogg_f_length * 1000000;
235 vlc_mutex_unlock( &p_item->lock );
237 vlc_object_release( p_input );
241 else if( TagLib::FLAC::File *p_flac =
242 dynamic_cast<TagLib::FLAC::File *>(f.file() ) )
244 long i_flac_length = p_flac->audioProperties()->length();
245 input_thread_t *p_input = (input_thread_t *)
246 vlc_object_find( p_demux, VLC_OBJECT_INPUT, FIND_PARENT );
249 input_item_t *p_item = input_GetItem( p_input );
252 vlc_mutex_lock( &p_item->lock );
253 p_item->i_duration = i_flac_length * 1000000;
254 vlc_mutex_unlock( &p_item->lock );
256 vlc_object_release( p_input );
260 #define SET( foo, bar ) vlc_meta_Set##foo( p_meta, tag->bar ().toCString(true))
261 #define SETINT( foo, bar ) { \
263 snprintf( (char*)psz_tmp, 10, "%d", tag->bar() ); \
264 vlc_meta_Set##foo( p_meta, (char*)psz_tmp ); \
268 SET( Artist, artist );
270 SET( Description, comment );
272 SETINT( Date, year );
273 SETINT( Tracknum , track );
277 DetectImage( f, p_meta );
282 #define SET(a,b) if(b) { \
283 TagLib::String *psz_##a = new TagLib::String( b, \
284 TagLib::String::UTF8 ); \
285 tag->set##a( *psz_##a ); \
289 static int WriteMeta( vlc_object_t *p_this )
291 playlist_t *p_playlist = (playlist_t *)p_this;
292 meta_export_t *p_export = (meta_export_t *)p_playlist->p_private;
293 input_item_t *p_item = p_export->p_item;
297 msg_Err( p_this, "Can't save meta data of an empty input" );
301 TagLib::FileRef f( p_export->psz_file );
302 if( !f.isNull() && f.tag() )
304 msg_Dbg( p_this, "Updating metadata for %s", p_export->psz_file );
306 TagLib::Tag *tag = f.tag();
310 psz_meta = input_item_GetArtist( p_item );
311 SET( Artist, psz_meta );
314 psz_meta = input_item_GetTitle( p_item );
315 if( !psz_meta ) psz_meta = input_item_GetName( p_item );
316 TagLib::String *psz_title = new TagLib::String( psz_meta,
317 TagLib::String::UTF8 );
318 tag->setTitle( *psz_title );
322 psz_meta = input_item_GetAlbum( p_item );
323 SET( Album, psz_meta );
326 psz_meta = input_item_GetGenre( p_item );
327 SET( Genre, psz_meta );
330 psz_meta = input_item_GetDate( p_item );
331 if( psz_meta ) tag->setYear( atoi( psz_meta ) );
334 psz_meta = input_item_GetTrackNum( p_item );
335 if( psz_meta ) tag->setTrack( atoi( psz_meta ) );
341 msg_Err( p_this, "File %s can't be opened for tag writing\n",
342 p_export->psz_file );
346 static int DownloadArt( vlc_object_t *p_this )
348 /* We need to be passed the file name
349 * Fetch the thing from the file, save it to the cache folder