modules/meta_engine/taglib.cpp

   1 /*****************************************************************************
   2  * taglib.cpp: Taglib tag parser/writer
   3  *****************************************************************************
   4  * Copyright (C) 2003-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Rafaël Carré <funman@videolanorg>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 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 General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, 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 <vlc_common.h>
  30 #include <vlc_plugin.h>
  31 #include <vlc_playlist.h>
  32 #include <vlc_meta.h>
  33 #include <vlc_demux.h>
  34 #include <vlc_strings.h>
  35 #include <vlc_charset.h>
  36
  37 #ifdef WIN32
  38 # include <io.h>
  39 #else
  40 # include <unistd.h>
  41 #endif
  42
  43 #include <fileref.h>
  44 #include <tag.h>
  45 #include <tstring.h>
  46 #include <id3v2tag.h>
  47 #include <textidentificationframe.h>
  48 #include <tbytevector.h>
  49 #include <mpegfile.h>
  50 #include <attachedpictureframe.h>
  51 //#include <oggflacfile.h> /* ogg flac files aren't auto-casted by TagLib */
  52 #include <flacfile.h>
  53 #include <flacproperties.h>
  54 #include <vorbisfile.h>
  55 #include <vorbisproperties.h>
  56 #include <xiphcomment.h>
  57 #include <uniquefileidentifierframe.h>
  58 #include <textidentificationframe.h>
  59 //#include <relativevolumeframe.h> /* parse the tags without TagLib helpers? */
  60
  61 static int  ReadMeta    ( vlc_object_t * );
  62 static int  DownloadArt ( vlc_object_t * );
  63 static int  WriteMeta   ( vlc_object_t * );
  64
  65 vlc_module_begin();
  66     set_capability( "meta reader", 1000 );
  67     set_callbacks( ReadMeta, NULL );
  68     add_submodule();
  69         set_capability( "art downloader", 50 );
  70         set_callbacks( DownloadArt, NULL );
  71     add_submodule();
  72         set_capability( "meta writer", 50 );
  73         set_callbacks( WriteMeta, NULL );
  74 vlc_module_end();
  75
  76 using namespace TagLib;
  77
  78 /* Try detecting embedded art */
  79 static void DetectImage( FileRef f, demux_t *p_demux )
  80 {
  81     demux_meta_t        *p_demux_meta   = (demux_meta_t *)p_demux->p_private;
  82     vlc_meta_t          *p_meta         = p_demux_meta->p_meta;
  83     int                 i_score         = -1;
  84
  85     /* Preferred type of image
  86      * The 21 types are defined in id3v2 standard:
  87      * http://www.id3.org/id3v2.4.0-frames */
  88     static const int pi_cover_score[] = {
  89         0,  /* Other */
  90         5,  /* 32x32 PNG image that should be used as the file icon */
  91         4,  /* File icon of a different size or format. */
  92         20, /* Front cover image of the album. */
  93         19, /* Back cover image of the album. */
  94         13, /* Inside leaflet page of the album. */
  95         18, /* Image from the album itself. */
  96         17, /* Picture of the lead artist or soloist. */
  97         16, /* Picture of the artist or performer. */
  98         14, /* Picture of the conductor. */
  99         15, /* Picture of the band or orchestra. */
 100         9,  /* Picture of the composer. */
 101         8,  /* Picture of the lyricist or text writer. */
 102         7,  /* Picture of the recording location or studio. */
 103         10, /* Picture of the artists during recording. */
 104         11, /* Picture of the artists during performance. */
 105         6,  /* Picture from a movie or video related to the track. */
 106         1,  /* Picture of a large, coloured fish. */
 107         12, /* Illustration related to the track. */
 108         3,  /* Logo of the band or performer. */
 109         2   /* Logo of the publisher (record company). */
 110     };
 111
 112     if( MPEG::File *mpeg = dynamic_cast<MPEG::File *>(f.file() ) )
 113     {
 114         ID3v2::Tag  *p_tag = mpeg->ID3v2Tag();
 115         if( !p_tag )
 116             return;
 117         ID3v2::FrameList list = p_tag->frameListMap()[ "APIC" ];
 118         if( list.isEmpty() )
 119             return;
 120         ID3v2::AttachedPictureFrame *p_apic;
 121
 122         TAB_INIT( p_demux_meta->i_attachments, p_demux_meta->attachments );
 123         for( ID3v2::FrameList::Iterator iter = list.begin();
 124                 iter != list.end(); iter++ )
 125         {
 126             p_apic = dynamic_cast<ID3v2::AttachedPictureFrame*>(*iter);
 127             input_attachment_t *p_attachment;
 128
 129             const char *psz_name, *psz_mime, *psz_description;
 130             ByteVector p_data_taglib; const char *p_data; int i_data;
 131
 132             psz_mime = p_apic->mimeType().toCString(true);
 133             psz_description = psz_name = p_apic->description().toCString(true);
 134
 135             /* some old iTunes version not only sets incorrectly the mime type
 136              * or the description of the image,
 137              * but also embeds incorrectly the image.
 138              * Recent versions seem to behave correctly */
 139             if( !strncmp( psz_mime, "PNG", 3 ) ||
 140                 !strncmp( psz_name, "\xC2\x89PNG", 5 ) )
 141             {
 142                 msg_Warn( p_demux,
 143                     "%s: Invalid picture embedded by broken iTunes version, "
 144                     "you really shouldn't use this crappy software.",
 145                     (const char *)f.file()->name() );
 146                 break;
 147             }
 148
 149             p_data_taglib = p_apic->picture();
 150             p_data = p_data_taglib.data();
 151             i_data = p_data_taglib.size();
 152
 153             msg_Dbg( p_demux, "Found embedded art: %s (%s) is %i bytes",
 154                     psz_name, psz_mime, i_data );
 155
 156             p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 157                     psz_description, p_data, i_data );
 158             TAB_APPEND_CAST( (input_attachment_t**),
 159                     p_demux_meta->i_attachments, p_demux_meta->attachments,
 160                     p_attachment );
 161
 162             if( pi_cover_score[p_apic->type()] > i_score )
 163             {
 164                 i_score = pi_cover_score[p_apic->type()];
 165                 char *psz_url;
 166                 if( asprintf( &psz_url, "attachment://%s",
 167                         p_attachment->psz_name ) == -1 )
 168                     return;
 169                 vlc_meta_SetArtURL( p_meta, psz_url );
 170                 free( psz_url );
 171             }
 172         }
 173     }
 174     else
 175     if( Ogg::Vorbis::File *oggv = dynamic_cast<Ogg::Vorbis::File *>(f.file() ) )
 176     {
 177         Ogg::XiphComment *p_tag = oggv->tag();
 178         if( !p_tag )
 179             return;
 180
 181         StringList mime_list = p_tag->fieldListMap()[ "COVERARTMIME" ];
 182         StringList art_list = p_tag->fieldListMap()[ "COVERART" ];
 183
 184         /* we support only one cover in ogg/vorbis */
 185         if( mime_list.size() != 1 || art_list.size() != 1 )
 186             return;
 187
 188         input_attachment_t *p_attachment;
 189
 190         const char *psz_name, *psz_mime, *psz_description;
 191         uint8_t *p_data;
 192         int i_data;
 193
 194         psz_name = "cover";
 195         psz_mime = mime_list[0].toCString(true);
 196         psz_description = "cover";
 197
 198         i_data = vlc_b64_decode_binary( &p_data, art_list[0].toCString(true) );
 199
 200         msg_Dbg( p_demux, "Found embedded art: %s (%s) is %i bytes",
 201                     psz_name, psz_mime, i_data );
 202
 203         TAB_INIT( p_demux_meta->i_attachments, p_demux_meta->attachments );
 204         p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 205                 psz_description, p_data, i_data );
 206         free( p_data );
 207
 208         TAB_APPEND_CAST( (input_attachment_t**),
 209                 p_demux_meta->i_attachments, p_demux_meta->attachments,
 210                 p_attachment );
 211
 212         vlc_meta_SetArtURL( p_meta, "attachment://cover" );
 213     }
 214
 215 #if 0
 216     //flac embedded images are extracted in the flac demuxer
 217     else if( FLAC::File *flac =
 218              dynamic_cast<FLAC::File *>(f.file() ) )
 219     {
 220         p_tag = flac->ID3v2Tag();
 221         if( p_tag )
 222             return;
 223         ID3v2::FrameList l = p_tag->frameListMap()[ "APIC" ];
 224         if( l.isEmpty() )
 225             return;
 226             vlc_meta_SetArtURL( p_meta, "APIC" );
 227     }
 228 #endif
 229 #if 0
 230 /* TagLib doesn't support MP4 file yet */
 231     else if( MP4::File *mp4 =
 232                dynamic_cast<MP4::File *>( f.file() ) )
 233     {
 234         MP4::Tag *mp4tag =
 235                 dynamic_cast<MP4::Tag *>( mp4->tag() );
 236         if( mp4tag && mp4tag->cover().size() )
 237             vlc_meta_SetArtURL( p_meta, "MP4C" );
 238     }
 239 #endif
 240 }
 241
 242 static int ReadMeta( vlc_object_t *p_this )
 243 {
 244     demux_t         *p_demux = (demux_t *)p_this;
 245     demux_meta_t    *p_demux_meta = (demux_meta_t*)p_demux->p_private;
 246     vlc_meta_t      *p_meta;
 247     TagLib::FileRef  f;
 248
 249     TAB_INIT( p_demux_meta->i_attachments, p_demux_meta->attachments );
 250     p_demux_meta->p_meta = NULL;
 251
 252 #if defined(WIN32) || defined (UNDER_CE)
 253     if(GetVersion() < 0x80000000)
 254     {
 255         wchar_t wpath[MAX_PATH + 1];
 256         if( !MultiByteToWideChar( CP_UTF8, 0, p_demux->psz_path, -1, wpath, MAX_PATH) )
 257             return VLC_EGENERIC;
 258
 259         wpath[MAX_PATH] = L'0';
 260         f = FileRef( wpath );
 261     }
 262     else return VLC_EGENERIC;
 263 #else
 264     const char *local_name = ToLocale( p_demux->psz_path );
 265
 266     if( local_name == NULL )
 267         return VLC_EGENERIC;
 268
 269     f = FileRef( local_name );
 270     LocaleFree( local_name );
 271 #endif
 272
 273     if( f.isNull() )
 274         return VLC_EGENERIC;
 275
 276     if ( !f.tag() || f.tag()->isEmpty() )
 277         return VLC_EGENERIC;
 278
 279     p_demux_meta->p_meta = p_meta = vlc_meta_New();
 280     Tag *p_tag = f.tag();
 281
 282     if( MPEG::File *p_mpeg =
 283         dynamic_cast<MPEG::File *>(f.file() ) )
 284     {
 285         if( p_mpeg->ID3v2Tag() )
 286         {
 287             ID3v2::Tag *p_tag = p_mpeg->ID3v2Tag();
 288             ID3v2::FrameList list = p_tag->frameListMap()["UFID"];
 289             ID3v2::UniqueFileIdentifierFrame* p_ufid;
 290             for( ID3v2::FrameList::Iterator iter = list.begin();
 291                     iter != list.end(); iter++ )
 292             {
 293                 p_ufid = dynamic_cast<ID3v2::UniqueFileIdentifierFrame*>(*iter);
 294                 const char *owner = p_ufid->owner().toCString();
 295                 if (!strcmp( owner, "http://musicbrainz.org" ))
 296                 {
 297                     /* ID3v2 UFID contains up to 64 bytes binary data
 298                         * but in our case it will be a '\0'
 299                         * terminated string */
 300                     char *psz_ufid = (char*) malloc( 64 );
 301                     int j = 0;
 302                     if( psz_ufid )
 303                     {
 304                         while( ( j < 63 ) &&
 305                                ( j < p_ufid->identifier().size() ) )
 306                             psz_ufid[j] = p_ufid->identifier()[j++];
 307                         psz_ufid[j] = '\0';
 308                         vlc_meta_SetTrackID( p_meta, psz_ufid );
 309                         free( psz_ufid );
 310                     }
 311                 }
 312             }
 313
 314             list = p_tag->frameListMap()["TXXX"];
 315             ID3v2::UserTextIdentificationFrame* p_txxx;
 316             for( ID3v2::FrameList::Iterator iter = list.begin();
 317                     iter != list.end(); iter++ )
 318             {
 319                 p_txxx = dynamic_cast<ID3v2::UserTextIdentificationFrame*>(*iter);
 320                 const char *psz_desc= p_txxx->description().toCString();
 321                 vlc_meta_AddExtra( p_meta, psz_desc,
 322                             p_txxx->fieldList().toString().toCString());
 323             }
 324 #if 0
 325             list = p_tag->frameListMap()["RVA2"];
 326             ID3v2::RelativeVolumeFrame* p_rva2;
 327             for( ID3v2::FrameList::Iterator iter = list.begin();
 328                     iter != list.end(); iter++ )
 329             {
 330                 p_rva2 = dynamic_cast<ID3v2::RelativeVolumeFrame*>(*iter);
 331                 /* TODO: process rva2 frames */
 332             }
 333 #endif
 334             list = p_tag->frameList();
 335             ID3v2::Frame* p_t;
 336             char psz_tag[4];
 337             for( ID3v2::FrameList::Iterator iter = list.begin();
 338                     iter != list.end(); iter++ )
 339             {
 340                 p_t = dynamic_cast<ID3v2::Frame*> (*iter);
 341                 memcpy( psz_tag, p_t->frameID().data(), 4);
 342
 343 #define SET( foo, bar ) if( !strncmp( psz_tag, foo, 4 ) ) \
 344 vlc_meta_Set##bar( p_meta, p_t->toString().toCString(true))
 345                 SET( "TPUB", Publisher );
 346                 SET( "TCOP", Copyright );
 347                 SET( "TENC", EncodedBy );
 348                 SET( "TLAN", Language );
 349                 //SET( "POPM", Rating ); /* rating needs special handling in id3v2 */
 350                 //if( !strncmp( psz_tag, "RVA2", 4 ) )
 351                     /* TODO */
 352 #undef SET
 353             }
 354         }
 355     }
 356
 357     else if( Ogg::Vorbis::File *p_ogg_v =
 358         dynamic_cast<Ogg::Vorbis::File *>(f.file() ) )
 359     {
 360         int i_ogg_v_length = p_ogg_v->audioProperties()->length();
 361
 362         input_thread_t *p_input = (input_thread_t *)
 363                 vlc_object_find( p_demux,VLC_OBJECT_INPUT, FIND_PARENT );
 364         if( p_input )
 365         {
 366             input_item_t *p_item = input_GetItem( p_input );
 367             if( p_item )
 368                 input_item_SetDuration( p_item,
 369                         (mtime_t) i_ogg_v_length * 1000000 );
 370             vlc_object_release( p_input );
 371         }
 372
 373     }
 374 #if 0 /* at this moment, taglib is unable to detect ogg/flac files
 375 * becauses type detection is based on file extension:
 376 * ogg = ogg/vorbis
 377 * flac = flac
 378 * ø = ogg/flac
 379 */
 380     else if( Ogg::FLAC::File *p_ogg_f =
 381         dynamic_cast<Ogg::FLAC::File *>(f.file() ) )
 382     {
 383         long i_ogg_f_length = p_ogg_f->streamLength();
 384         input_thread_t *p_input = (input_thread_t *)
 385                 vlc_object_find( p_demux, VLC_OBJECT_INPUT, FIND_PARENT );
 386         if( p_input )
 387         {
 388             input_item_t *p_item = input_GetItem( p_input );
 389             if( p_item )
 390                 input_item_SetDuration( p_item,
 391                         (mtime_t) i_ogg_f_length * 1000000 );
 392             vlc_object_release( p_input );
 393         }
 394     }
 395 #endif
 396     else if( FLAC::File *p_flac =
 397         dynamic_cast<FLAC::File *>(f.file() ) )
 398     {
 399         long i_flac_length = p_flac->audioProperties()->length();
 400         input_thread_t *p_input = (input_thread_t *)
 401                 vlc_object_find( p_demux, VLC_OBJECT_INPUT, FIND_PARENT );
 402         if( p_input )
 403         {
 404             input_item_t *p_item = input_GetItem( p_input );
 405             if( p_item )
 406                 input_item_SetDuration( p_item,
 407                         (mtime_t) i_flac_length * 1000000 );
 408             vlc_object_release( p_input );
 409         }
 410     }
 411
 412 #define SET( foo, bar ) vlc_meta_Set##foo( p_meta, p_tag->bar ().toCString(true))
 413 #define SETINT( foo, bar ) { \
 414         char psz_tmp[10]; \
 415         snprintf( (char*)psz_tmp, 10, "%d", p_tag->bar() ); \
 416         vlc_meta_Set##foo( p_meta, (char*)psz_tmp ); \
 417     }
 418
 419     SET( Title, title );
 420     SET( Artist, artist );
 421     SET( Album, album );
 422     SET( Description, comment );
 423     SET( Genre, genre );
 424     SETINT( Date, year );
 425     SETINT( Tracknum , track );
 426 #undef SET
 427 #undef SETINT
 428
 429     DetectImage( f, p_demux );
 430
 431     return VLC_SUCCESS;
 432 }
 433
 434 static int WriteMeta( vlc_object_t *p_this )
 435 {
 436     playlist_t *p_playlist = (playlist_t *)p_this;
 437     meta_export_t *p_export = (meta_export_t *)p_playlist->p_private;
 438     input_item_t *p_item = p_export->p_item;
 439
 440     if( p_item == NULL )
 441     {
 442         msg_Err( p_this, "Can't save meta data of an empty input" );
 443         return VLC_EGENERIC;
 444     }
 445
 446     FileRef f( p_export->psz_file );
 447     if( f.isNull() || !f.tag() || f.file()->readOnly() )
 448     {
 449         msg_Err( p_this, "File %s can't be opened for tag writing\n",
 450             p_export->psz_file );
 451         return VLC_EGENERIC;
 452     }
 453
 454     msg_Dbg( p_this, "Writing metadata for %s", p_export->psz_file );
 455
 456     Tag *p_tag = f.tag();
 457
 458     char *psz_meta;
 459
 460 #define SET(a,b) \
 461         if(b) { \
 462             String *psz_##a = new String( b, \
 463                 String::UTF8 ); \
 464             p_tag->set##a( *psz_##a ); \
 465             delete psz_##a; \
 466         }
 467
 468
 469     psz_meta = input_item_GetArtist( p_item );
 470     SET( Artist, psz_meta );
 471     free( psz_meta );
 472
 473     psz_meta = input_item_GetTitle( p_item );
 474     if( !psz_meta ) psz_meta = input_item_GetName( p_item );
 475     String *psz_title = new String( psz_meta,
 476         String::UTF8 );
 477     p_tag->setTitle( *psz_title );
 478     delete psz_title;
 479     free( psz_meta );
 480
 481     psz_meta = input_item_GetAlbum( p_item );
 482     SET( Album, psz_meta );
 483     free( psz_meta );
 484
 485     psz_meta = input_item_GetGenre( p_item );
 486     SET( Genre, psz_meta );
 487     free( psz_meta );
 488
 489 #undef SET
 490
 491     psz_meta = input_item_GetDate( p_item );
 492     if( psz_meta ) p_tag->setYear( atoi( psz_meta ) );
 493     free( psz_meta );
 494
 495     psz_meta = input_item_GetTrackNum( p_item );
 496     if( psz_meta ) p_tag->setTrack( atoi( psz_meta ) );
 497     free( psz_meta );
 498
 499     if( ID3v2::Tag *p_id3tag =
 500         dynamic_cast<ID3v2::Tag *>(p_tag) )
 501     {
 502 #define WRITE( foo, bar ) \
 503         psz_meta = input_item_Get##foo( p_item ); \
 504         if( psz_meta ) \
 505         { \
 506             ByteVector p_byte( bar, 4 ); \
 507             ID3v2::TextIdentificationFrame p_frame( p_byte ); \
 508             p_frame.setText( psz_meta ); \
 509             p_id3tag->addFrame( &p_frame ); \
 510             free( psz_meta ); \
 511         } \
 512
 513         WRITE( Publisher, "TPUB" );
 514         WRITE( Copyright, "TCOP" );
 515         WRITE( EncodedBy, "TENC" );
 516         WRITE( Language, "TLAN" );
 517
 518 #undef WRITE
 519     }
 520
 521     f.save();
 522     return VLC_SUCCESS;
 523 }
 524
 525 static int DownloadArt( vlc_object_t *p_this )
 526 {
 527     /* We need to be passed the file name
 528      * Fetch the thing from the file, save it to the cache folder
 529      */
 530     return VLC_EGENERIC;
 531 }
 532