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 //#include <relativevolumeframe.h> /* parse the tags without taglib helpers? */
46 static int ReadMeta ( vlc_object_t * );
47 static int DownloadArt ( vlc_object_t * );
48 static int WriteMeta ( vlc_object_t * );
51 set_capability( "meta reader", 1000 );
52 set_callbacks( ReadMeta, NULL );
54 set_capability( "art downloader", 50 );
55 set_callbacks( DownloadArt, NULL );
57 set_capability( "meta writer", 50 );
58 set_callbacks( WriteMeta, NULL );
61 static bool checkID3Image( const TagLib::ID3v2::Tag *tag )
63 TagLib::ID3v2::FrameList l = tag->frameListMap()[ "APIC" ];
67 /* Try detecting embedded art */
68 static void DetectImage( TagLib::FileRef f, vlc_meta_t *p_meta )
70 if( TagLib::MPEG::File *mpeg =
71 dynamic_cast<TagLib::MPEG::File *>(f.file() ) )
73 if( mpeg->ID3v2Tag() && checkID3Image( mpeg->ID3v2Tag() ) )
74 vlc_meta_SetArtURL( p_meta, "APIC" );
76 else if( TagLib::FLAC::File *flac =
77 dynamic_cast<TagLib::FLAC::File *>(f.file() ) )
79 if( flac->ID3v2Tag() && checkID3Image( flac->ID3v2Tag() ) )
80 vlc_meta_SetArtURL( p_meta, "APIC" );
83 /* This needs special additions to taglib */
84 * else if( TagLib::MP4::File *mp4 =
85 dynamic_cast<TagLib::MP4::File *>( f.file() ) )
87 TagLib::MP4::Tag *mp4tag =
88 dynamic_cast<TagLib::MP4::Tag *>( mp4->tag() );
89 if( mp4tag && mp4tag->cover().size() )
90 vlc_meta_SetArtURL( p_meta, "MP4C" );
95 static int ReadMeta( vlc_object_t *p_this )
97 demux_t *p_demux = (demux_t *)p_this;
99 if( !strncmp( p_demux->psz_access, "file", 4 ) )
101 if( !p_demux->p_private )
102 p_demux->p_private = (void*)vlc_meta_New();
103 TagLib::FileRef f( p_demux->psz_path );
107 if( TagLib::Ogg::Vorbis::File *p_ogg_v =
108 dynamic_cast<TagLib::Ogg::Vorbis::File *>(f.file() ) )
110 int i_ogg_v_length = p_ogg_v->audioProperties()->length();
112 input_thread_t *p_input = (input_thread_t *)vlc_object_find( p_demux, VLC_OBJECT_INPUT, FIND_PARENT );
115 input_item_t *p_item = input_GetItem( p_input );
118 vlc_mutex_lock( &p_item->lock );
119 p_item->i_duration = i_ogg_v_length * 1000000;
120 vlc_mutex_unlock( &p_item->lock );
122 vlc_object_release( p_input );
125 #if 0 /* at this moment, taglib is unable to detect ogg/flac files
126 * becauses type detection is based on file extension:
131 else if( TagLib::Ogg::FLAC::File *p_ogg_f =
132 dynamic_cast<TagLib::Ogg::FLAC::File *>(f.file() ) )
134 long i_ogg_f_length = p_ogg_f->streamLength();
135 input_thread_t *p_input = (input_thread_t *)vlc_object_find( p_demux, VLC_OBJECT_INPUT, FIND_PARENT );
138 input_item_t *p_item = input_GetItem( p_input );
141 vlc_mutex_lock( &p_item->lock );
142 p_item->i_duration = i_ogg_f_length * 1000000;
143 vlc_mutex_unlock( &p_item->lock );
145 vlc_object_release( p_input );
149 else if( TagLib::FLAC::File *p_flac =
150 dynamic_cast<TagLib::FLAC::File *>(f.file() ) )
152 long i_flac_length = p_flac->audioProperties()->length();
153 input_thread_t *p_input = (input_thread_t *)vlc_object_find( p_demux, VLC_OBJECT_INPUT, FIND_PARENT );
156 input_item_t *p_item = input_GetItem( p_input );
159 vlc_mutex_lock( &p_item->lock );
160 p_item->i_duration = i_flac_length * 1000000;
161 vlc_mutex_unlock( &p_item->lock );
163 vlc_object_release( p_input );
168 if( !f.isNull() && f.tag() && !f.tag()->isEmpty() )
170 TagLib::Tag *tag = f.tag();
171 vlc_meta_t *p_meta = (vlc_meta_t *)(p_demux->p_private );
173 #define SET( foo, bar ) vlc_meta_Set##foo( p_meta, tag->bar ().toCString(true))
174 #define SETINT( foo, bar ) { \
176 snprintf( (char*)psz_tmp, 10, "%d", tag->bar() ); \
177 vlc_meta_Set##foo( p_meta, (char*)psz_tmp ); \
181 SET( Artist, artist );
183 SET( Description, comment );
185 SETINT( Date, year );
186 SETINT( Tracknum , track );
190 if( TagLib::MPEG::File *p_mpeg =
191 dynamic_cast<TagLib::MPEG::File *>(f.file() ) )
193 if( p_mpeg->ID3v2Tag() )
195 TagLib::ID3v2::Tag *tag = p_mpeg->ID3v2Tag();
196 TagLib::ID3v2::FrameList list = tag->frameListMap()["UFID"];
197 TagLib::ID3v2::UniqueFileIdentifierFrame* p_ufid;
198 for( TagLib::ID3v2::FrameList::Iterator iter = list.begin();
199 iter != list.end(); iter++ )
201 p_ufid = dynamic_cast<TagLib::ID3v2::UniqueFileIdentifierFrame*>(*iter);
202 const char *owner = p_ufid->owner().toCString();
203 if (!strcmp( owner, "http://musicbrainz.org" ))
205 /* ID3v2 UFID contains up to 64 bytes binary data
206 * but in our case it will be a '\0'
207 * terminated string */
208 char *psz_ufid = (char*) malloc( 64 );
211 ( j < p_ufid->identifier().size() ) )
212 psz_ufid[j] = p_ufid->identifier()[j++];
214 vlc_meta_SetTrackID( p_meta, psz_ufid );
219 list = tag->frameListMap()["TXXX"];
220 TagLib::ID3v2::UserTextIdentificationFrame* p_txxx;
221 for( TagLib::ID3v2::FrameList::Iterator iter = list.begin();
222 iter != list.end(); iter++ )
224 p_txxx = dynamic_cast<TagLib::ID3v2::UserTextIdentificationFrame*>(*iter);
225 const char *psz_desc= p_txxx->description().toCString();
226 #if 0 /* musicbrainz artist and album id: not useful (yet?) */
227 if( !strncmp( psz_desc, "MusicBrainz Artist Id", 21 ) )
228 vlc_meta_SetArtistID( p_meta,
229 p_txxx->fieldList().toString().toCString());
230 if( !strncmp( psz_desc, "MusicBrainz Album Id", 20 ) )
231 vlc_meta_SetAlbumID( p_meta,
232 p_txxx->fieldList().toString().toCString());
234 vlc_meta_AddExtra( p_meta, psz_desc,
235 p_txxx->fieldList().toString().toCString());
238 list = tag->frameListMap()["RVA2"];
239 TagLib::ID3v2::RelativeVolumeFrame* p_rva2;
240 for( TagLib::ID3v2::FrameList::Iterator iter = list.begin();
241 iter != list.end(); iter++ )
243 p_rva2 = dynamic_cast<TagLib::ID3v2::RelativeVolumeFrame*>(*iter);
244 /* TODO: process rva2 frames */
247 list = tag->frameList();
248 TagLib::ID3v2::Frame* p_t;
250 for( TagLib::ID3v2::FrameList::Iterator iter = list.begin();
251 iter != list.end(); iter++ )
253 p_t = dynamic_cast<TagLib::ID3v2::Frame*> (*iter);
254 memcpy( psz_tag, p_t->frameID().data(), 4);
256 #define SET( foo, bar ) if( !strncmp( psz_tag, foo, 4 ) ) \
257 vlc_meta_Set##bar( p_meta, p_t->toString().toCString(true))
258 SET( "TPUB", Publisher );
259 SET( "TCOP", Copyright );
260 SET( "TENC", EncodedBy );
261 SET( "TLAN", Language );
262 //SET( "POPM", Rating );
263 //if( !strncmp( psz_tag, "RVA2", 4 ) )
270 DetectImage( f, p_meta );
278 #define SET(a,b) if(b) { \
279 TagLib::String *psz_##a = new TagLib::String( b, \
280 TagLib::String::UTF8 ); \
281 tag->set##a( *psz_##a ); \
285 static int WriteMeta( vlc_object_t *p_this )
287 playlist_t *p_playlist = (playlist_t *)p_this;
288 meta_export_t *p_export = (meta_export_t *)p_playlist->p_private;
289 input_item_t *p_item = p_export->p_item;
293 msg_Err( p_this, "Can't save meta data of an empty input" );
297 TagLib::FileRef f( p_export->psz_file );
298 if( !f.isNull() && f.tag() )
300 msg_Dbg( p_this, "Updating metadata for %s", p_export->psz_file );
302 TagLib::Tag *tag = f.tag();
306 psz_meta = input_item_GetArtist( p_item );
307 SET( Artist, psz_meta );
310 psz_meta = input_item_GetTitle( p_item );
311 if( !psz_meta ) psz_meta = input_item_GetName( p_item );
312 TagLib::String *psz_title = new TagLib::String( psz_meta,
313 TagLib::String::UTF8 );
314 tag->setTitle( *psz_title );
318 psz_meta = input_item_GetAlbum( p_item );
319 SET( Album, psz_meta );
322 psz_meta = input_item_GetGenre( p_item );
323 SET( Genre, psz_meta );
326 psz_meta = input_item_GetDate( p_item );
327 if( psz_meta ) tag->setYear( atoi( psz_meta ) );
330 psz_meta = input_item_GetTrackNum( p_item );
331 if( psz_meta ) tag->setTrack( atoi( psz_meta ) );
337 msg_Err( p_this, "File %s can't be opened for tag writing\n",
338 p_export->psz_file );
342 static int DownloadArt( vlc_object_t *p_this )
344 /* We need to be passed the file name
345 * Fetch the thing from the file, save it to the cache folder