modules/meta_engine/taglib.cpp

   1 /*****************************************************************************
   2  * taglib.cpp: Taglib tag parser/writer
   3  *****************************************************************************
   4  * Copyright (C) 2003-2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Rafaël Carré <funman@videolanorg>
   9  *          Rémi Duraffort <ivoire@videolan.org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include <vlc_common.h>
  31 #include <vlc_plugin.h>
  32 #include <vlc_meta.h>
  33 #include <vlc_demux.h>
  34 #include <vlc_strings.h>
  35 #include <vlc_charset.h>
  36 #include <vlc_url.h>
  37 #include <vlc_input_item.h>
  38 #include <vlc_input.h> /* for attachment_new */
  39
  40 #ifdef WIN32
  41 # include <io.h>
  42 #else
  43 # include <unistd.h>
  44 #endif
  45
  46
  47 // Taglib headers
  48 #include <fileref.h>
  49 #include <tag.h>
  50 #include <tbytevector.h>
  51
  52 #include <apetag.h>
  53 #include <id3v2tag.h>
  54 #include <xiphcomment.h>
  55
  56 #include <flacfile.h>
  57 #include <mpcfile.h>
  58 #include <mpegfile.h>
  59 #include <oggfile.h>
  60 #include <oggflacfile.h>
  61
  62 #ifdef TAGLIB_WITH_ASF
  63 # include <aifffile.h>
  64 # include <wavfile.h>
  65 #endif
  66
  67 #ifdef TAGLIB_WITH_MP4
  68 # include <mp4file.h>
  69 #endif
  70
  71 #include <speexfile.h>
  72 #include <trueaudiofile.h>
  73 #include <vorbisfile.h>
  74 #include <wavpackfile.h>
  75
  76 #include <attachedpictureframe.h>
  77 #include <textidentificationframe.h>
  78 #include <uniquefileidentifierframe.h>
  79
  80 // taglib is not thread safe
  81 static vlc_mutex_t taglib_lock = VLC_STATIC_MUTEX;
  82
  83 // Local functions
  84 static int ReadMeta    ( vlc_object_t * );
  85 static int WriteMeta   ( vlc_object_t * );
  86
  87 vlc_module_begin ()
  88     set_capability( "meta reader", 1000 )
  89     set_callbacks( ReadMeta, NULL )
  90     add_submodule ()
  91         set_capability( "meta writer", 50 )
  92         set_callbacks( WriteMeta, NULL )
  93 vlc_module_end ()
  94
  95 using namespace TagLib;
  96
  97
  98 /**
  99  * Read meta information from APE tags
 100  * @param tag: the APE tag
 101  * @param p_demux; the demux object
 102  * @param p_demux_meta: the demuxer meta
 103  * @param p_meta: the meta
 104  */
 105 static void ReadMetaFromAPE( APE::Tag* tag, demux_t* p_demux, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 106 {
 107     APE::Item item;
 108 #define SET( keyName, metaName ) \
 109     item = tag->itemListMap()[keyName]; \
 110     vlc_meta_Set##metaName( p_meta, item.toString().toCString( true ) );\
 111
 112     SET( "COPYRIGHT", Copyright );
 113     SET( "LANGUAGE", Language );
 114     SET( "PUBLISHER", Publisher );
 115
 116 #undef SET
 117 }
 118
 119
 120
 121 /**
 122  * Read meta information from id3v2 tags
 123  * @param tag: the id3v2 tag
 124  * @param p_demux; the demux object
 125  * @param p_demux_meta: the demuxer meta
 126  * @param p_meta: the meta
 127  */
 128 static void ReadMetaFromId3v2( ID3v2::Tag* tag, demux_t* p_demux, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 129 {
 130     // Get the unique file identifier
 131     ID3v2::FrameList list = tag->frameListMap()["UFID"];
 132     ID3v2::FrameList::Iterator iter;
 133     for( iter = list.begin(); iter != list.end(); iter++ )
 134     {
 135         ID3v2::UniqueFileIdentifierFrame* p_ufid =
 136                 dynamic_cast<ID3v2::UniqueFileIdentifierFrame*>(*iter);
 137         if( !p_ufid )
 138             continue;
 139         const char *owner = p_ufid->owner().toCString();
 140         if (!strcmp( owner, "http://musicbrainz.org" ))
 141         {
 142             /* ID3v2 UFID contains up to 64 bytes binary data
 143              * but in our case it will be a '\0'
 144              * terminated string */
 145             char psz_ufid[64];
 146             int max_size = __MIN( p_ufid->identifier().size(), 63);
 147             strncpy( psz_ufid, p_ufid->identifier().data(), max_size );
 148             psz_ufid[max_size] = '\0';
 149             vlc_meta_SetTrackID( p_meta, psz_ufid );
 150         }
 151     }
 152
 153     // Get the use text
 154     list = tag->frameListMap()["TXXX"];
 155     for( iter = list.begin(); iter != list.end(); iter++ )
 156     {
 157         ID3v2::UserTextIdentificationFrame* p_txxx =
 158                 dynamic_cast<ID3v2::UserTextIdentificationFrame*>(*iter);
 159         if( !p_txxx )
 160             continue;
 161         vlc_meta_AddExtra( p_meta, p_txxx->description().toCString( true ),
 162                            p_txxx->fieldList().back().toCString( true ) );
 163     }
 164
 165     // Get some more information
 166 #define SET( tagName, metaName )                                               \
 167     list = tag->frameListMap()[tagName];                                       \
 168     if( !list.isEmpty() )                                                      \
 169         vlc_meta_Set##metaName( p_meta,                                        \
 170                                 (*list.begin())->toString().toCString( true ) );
 171
 172     SET( "TCOP", Copyright );
 173     SET( "TENC", EncodedBy );
 174     SET( "TLAN", Language );
 175     SET( "TPUB", Publisher );
 176
 177 #undef SET
 178
 179     /* Preferred type of image
 180      * The 21 types are defined in id3v2 standard:
 181      * http://www.id3.org/id3v2.4.0-frames */
 182     static const int pi_cover_score[] = {
 183         0,  /* Other */
 184         5,  /* 32x32 PNG image that should be used as the file icon */
 185         4,  /* File icon of a different size or format. */
 186         20, /* Front cover image of the album. */
 187         19, /* Back cover image of the album. */
 188         13, /* Inside leaflet page of the album. */
 189         18, /* Image from the album itself. */
 190         17, /* Picture of the lead artist or soloist. */
 191         16, /* Picture of the artist or performer. */
 192         14, /* Picture of the conductor. */
 193         15, /* Picture of the band or orchestra. */
 194         9,  /* Picture of the composer. */
 195         8,  /* Picture of the lyricist or text writer. */
 196         7,  /* Picture of the recording location or studio. */
 197         10, /* Picture of the artists during recording. */
 198         11, /* Picture of the artists during performance. */
 199         6,  /* Picture from a movie or video related to the track. */
 200         1,  /* Picture of a large, coloured fish. */
 201         12, /* Illustration related to the track. */
 202         3,  /* Logo of the band or performer. */
 203         2   /* Logo of the publisher (record company). */
 204     };
 205     #define PI_COVER_SCORE_SIZE (sizeof (pi_cover_score) / sizeof (pi_cover_score[0]))
 206     int i_score = -1;
 207
 208     // Try now to get embedded art
 209     list = tag->frameListMap()[ "APIC" ];
 210     if( list.isEmpty() )
 211         return;
 212
 213     TAB_INIT( p_demux_meta->i_attachments, p_demux_meta->attachments );
 214     for( iter = list.begin(); iter != list.end(); iter++ )
 215     {
 216         ID3v2::AttachedPictureFrame* p_apic =
 217             dynamic_cast<ID3v2::AttachedPictureFrame*>(*iter);
 218         if( !p_apic )
 219             continue;
 220         input_attachment_t *p_attachment;
 221
 222         const char *psz_mime;
 223         char *psz_name, *psz_description;
 224
 225         // Get the mime and description of the image.
 226         // If the description is empty, take the type as a description
 227         psz_mime = p_apic->mimeType().toCString( true );
 228         if( p_apic->description().size() > 0 )
 229             psz_description = strdup( p_apic->description().toCString( true ) );
 230         else
 231         {
 232             if( asprintf( &psz_description, "%i", p_apic->type() ) == -1 )
 233                 psz_description = NULL;
 234         }
 235
 236         if( !psz_description )
 237             continue;
 238         psz_name = psz_description;
 239
 240         /* some old iTunes version not only sets incorrectly the mime type
 241          * or the description of the image,
 242          * but also embeds incorrectly the image.
 243          * Recent versions seem to behave correctly */
 244         if( !strncmp( psz_mime, "PNG", 3 ) ||
 245             !strncmp( psz_name, "\xC2\x89PNG", 5 ) )
 246         {
 247             msg_Warn( p_demux_meta, "Invalid picture embedded by broken iTunes version" );
 248             free( psz_description );
 249             continue;
 250         }
 251
 252         const ByteVector picture = p_apic->picture();
 253         const char *p_data = picture.data();
 254         const unsigned i_data = picture.size();
 255
 256         msg_Dbg( p_demux_meta, "Found embedded art: %s (%s) is %u bytes",
 257                  psz_name, psz_mime, i_data );
 258
 259         p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 260                                 psz_description, p_data, i_data );
 261         if( p_attachment )
 262             TAB_APPEND_CAST( (input_attachment_t**),
 263                              p_demux_meta->i_attachments, p_demux_meta->attachments,
 264                              p_attachment );
 265         free( psz_description );
 266
 267         unsigned i_pic_type = p_apic->type();
 268         if( i_pic_type >= PI_COVER_SCORE_SIZE )
 269             i_pic_type = 0; // Defaults to "Other"
 270
 271         if( pi_cover_score[i_pic_type] > i_score )
 272         {
 273             i_score = pi_cover_score[i_pic_type];
 274             char *psz_url;
 275             if( asprintf( &psz_url, "attachment://%s",
 276                           p_attachment->psz_name ) == -1 )
 277                 continue;
 278             vlc_meta_SetArtURL( p_meta, psz_url );
 279             free( psz_url );
 280         }
 281     }
 282 }
 283
 284
 285
 286 /**
 287  * Read the meta information from XiphComments
 288  * @param tag: the Xiph Comment
 289  * @param p_demux; the demux object
 290  * @param p_demux_meta: the demuxer meta
 291  * @param p_meta: the meta
 292  */
 293 static void ReadMetaFromXiph( Ogg::XiphComment* tag, demux_t* p_demux, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 294 {
 295 #define SET( keyName, metaName )                                               \
 296     StringList list = tag->fieldListMap()[keyName];                            \
 297     if( !list.isEmpty() )                                                      \
 298         vlc_meta_Set##metaName( p_meta, (*list.begin()).toCString( true ) );
 299
 300     SET( "COPYRIGHT", Copyright );
 301 #undef SET
 302
 303     // Try now to get embedded art
 304     StringList mime_list = tag->fieldListMap()[ "COVERARTMIME" ];
 305     StringList art_list = tag->fieldListMap()[ "COVERART" ];
 306
 307     // We get only the first covert art
 308     if( mime_list.size() > 1 || art_list.size() > 1 )
 309         msg_Warn( p_demux_meta, "Found %i embedded arts, so using only the first one",
 310                   art_list.size() );
 311     else if( mime_list.size() == 0 || art_list.size() == 0 )
 312         return;
 313
 314     input_attachment_t *p_attachment;
 315
 316     const char* psz_name = "cover";
 317     const char* psz_mime = mime_list[0].toCString(true);
 318     const char* psz_description = "cover";
 319
 320     uint8_t *p_data;
 321     int i_data = vlc_b64_decode_binary( &p_data, art_list[0].toCString(true) );
 322
 323     msg_Dbg( p_demux_meta, "Found embedded art: %s (%s) is %i bytes",
 324              psz_name, psz_mime, i_data );
 325
 326     TAB_INIT( p_demux_meta->i_attachments, p_demux_meta->attachments );
 327               p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 328               psz_description, p_data, i_data );
 329     free( p_data );
 330
 331     TAB_APPEND_CAST( (input_attachment_t**),
 332                      p_demux_meta->i_attachments, p_demux_meta->attachments,
 333                      p_attachment );
 334
 335     vlc_meta_SetArtURL( p_meta, "attachment://cover" );
 336 }
 337
 338 #if defined(TAGLIB_WITH_MP4) && defined(HAVE_TAGLIB_MP4COVERART_H)
 339 static void ReadMetaFromMP4( MP4::Tag* tag, demux_t *p_demux, demux_meta_t *p_demux_meta, vlc_meta_t* p_meta )
 340 {
 341     if( tag->itemListMap().contains("covr") )
 342     {
 343         MP4::CoverArtList list = tag->itemListMap()["covr"].toCoverArtList();
 344         const char *psz_format = list[0].format() == MP4::CoverArt::PNG ? "image/png" : "image/jpeg";
 345
 346         msg_Dbg( p_demux_meta, "Found embedded art (%s) is %i bytes",
 347                  psz_format, list[0].data().size() );
 348
 349         TAB_INIT( p_demux_meta->i_attachments, p_demux_meta->attachments );
 350         input_attachment_t *p_attachment =
 351                 vlc_input_attachment_New( "cover", psz_format, "cover",
 352                                           list[0].data().data(), list[0].data().size() );
 353         TAB_APPEND_CAST( (input_attachment_t**),
 354                          p_demux_meta->i_attachments, p_demux_meta->attachments,
 355                          p_attachment );
 356         vlc_meta_SetArtURL( p_meta, "attachment://cover" );
 357     }
 358 }
 359 #endif
 360
 361 /**
 362  * Get the tags from the file using TagLib
 363  * @param p_this: the demux object
 364  * @return VLC_SUCCESS if the operation success
 365  */
 366 static int ReadMeta( vlc_object_t* p_this)
 367 {
 368     vlc_mutex_locker locker (&taglib_lock);
 369     demux_meta_t*   p_demux_meta = (demux_meta_t *)p_this;
 370     demux_t*        p_demux = p_demux_meta->p_demux;
 371     vlc_meta_t*     p_meta;
 372     FileRef f;
 373
 374     p_demux_meta->p_meta = NULL;
 375     if( strcmp( p_demux->psz_access, "file" ) )
 376         return VLC_EGENERIC;
 377
 378     char *psz_path = strdup( p_demux->psz_file );
 379     if( !psz_path )
 380         return VLC_ENOMEM;
 381
 382 #if defined(WIN32) || defined (UNDER_CE)
 383     wchar_t wpath[MAX_PATH + 1];
 384     if( !MultiByteToWideChar( CP_UTF8, 0, psz_path, -1, wpath, MAX_PATH) )
 385     {
 386         free( psz_path );
 387         return VLC_EGENERIC;
 388     }
 389     wpath[MAX_PATH] = L'\0';
 390     f = FileRef( wpath );
 391 #else
 392     const char* local_name = ToLocale( psz_path );
 393     if( !local_name )
 394     {
 395         free( psz_path );
 396         return VLC_EGENERIC;
 397     }
 398     f = FileRef( local_name );
 399     LocaleFree( local_name );
 400 #endif
 401     free( psz_path );
 402
 403     if( f.isNull() )
 404         return VLC_EGENERIC;
 405     if( !f.tag() || f.tag()->isEmpty() )
 406         return VLC_EGENERIC;
 407
 408     p_demux_meta->p_meta = p_meta = vlc_meta_New();
 409     if( !p_meta )
 410         return VLC_ENOMEM;
 411
 412
 413     // Read the tags from the file
 414     Tag* p_tag = f.tag();
 415
 416 #define SET( tag, meta )                                                       \
 417     if( !p_tag->tag().isNull() && !p_tag->tag().isEmpty() )                    \
 418         vlc_meta_Set##meta( p_meta, p_tag->tag().toCString(true) )
 419 #define SETINT( tag, meta )                                                    \
 420     if( p_tag->tag() )                                                         \
 421     {                                                                          \
 422         char psz_tmp[10];                                                      \
 423         snprintf( psz_tmp, 10, "%d", p_tag->tag() );                           \
 424         vlc_meta_Set##meta( p_meta, psz_tmp );                                 \
 425     }
 426
 427     SET( title, Title );
 428     SET( artist, Artist );
 429     SET( album, Album );
 430     SET( comment, Description );
 431     SET( genre, Genre );
 432     SETINT( year, Date );
 433     SETINT( track, TrackNum );
 434
 435 #undef SETINT
 436 #undef SET
 437
 438
 439     // Try now to read special tags
 440     if( FLAC::File* flac = dynamic_cast<FLAC::File*>(f.file()) )
 441     {
 442         if( flac->ID3v2Tag() )
 443             ReadMetaFromId3v2( flac->ID3v2Tag(), p_demux, p_demux_meta, p_meta );
 444         else if( flac->xiphComment() )
 445             ReadMetaFromXiph( flac->xiphComment(), p_demux, p_demux_meta, p_meta );
 446     }
 447 #if defined(TAGLIB_WITH_MP4) && defined(HAVE_TAGLIB_MP4COVERART_H)
 448     else if( MP4::File *mp4 = dynamic_cast<MP4::File*>(f.file()) )
 449     {
 450         if( mp4->tag() )
 451             ReadMetaFromMP4( mp4->tag(), p_demux, p_demux_meta, p_meta );
 452     }
 453 #endif
 454     else if( MPC::File* mpc = dynamic_cast<MPC::File*>(f.file()) )
 455     {
 456         if( mpc->APETag() )
 457             ReadMetaFromAPE( mpc->APETag(), p_demux, p_demux_meta, p_meta );
 458     }
 459     else if( MPEG::File* mpeg = dynamic_cast<MPEG::File*>(f.file()) )
 460     {
 461         if( mpeg->ID3v2Tag() )
 462             ReadMetaFromId3v2( mpeg->ID3v2Tag(), p_demux, p_demux_meta, p_meta );
 463         else if( mpeg->APETag() )
 464             ReadMetaFromAPE( mpeg->APETag(), p_demux, p_demux_meta, p_meta );
 465     }
 466     else if( Ogg::File* ogg = dynamic_cast<Ogg::File*>(f.file()) )
 467     {
 468         if( Ogg::FLAC::File* ogg_flac = dynamic_cast<Ogg::FLAC::File*>(f.file()))
 469             ReadMetaFromXiph( ogg_flac->tag(), p_demux, p_demux_meta, p_meta );
 470         else if( Ogg::Speex::File* ogg_speex = dynamic_cast<Ogg::Speex::File*>(f.file()) )
 471             ReadMetaFromXiph( ogg_speex->tag(), p_demux, p_demux_meta, p_meta );
 472         else if( Ogg::Vorbis::File* ogg_vorbis = dynamic_cast<Ogg::Vorbis::File*>(f.file()) )
 473             ReadMetaFromXiph( ogg_vorbis->tag(), p_demux, p_demux_meta, p_meta );
 474     }
 475 #ifdef TAGLIB_WITH_ASF
 476     else if( RIFF::File* riff = dynamic_cast<RIFF::File*>(f.file()) )
 477     {
 478         if( RIFF::AIFF::File* riff_aiff = dynamic_cast<RIFF::AIFF::File*>(f.file()) )
 479             ReadMetaFromId3v2( riff_aiff->tag(), p_demux, p_demux_meta, p_meta );
 480         else if( RIFF::WAV::File* riff_wav = dynamic_cast<RIFF::WAV::File*>(f.file()) )
 481             ReadMetaFromId3v2( riff_wav->tag(), p_demux, p_demux_meta, p_meta );
 482     }
 483 #endif
 484     else if( TrueAudio::File* trueaudio = dynamic_cast<TrueAudio::File*>(f.file()) )
 485     {
 486         if( trueaudio->ID3v2Tag() )
 487             ReadMetaFromId3v2( trueaudio->ID3v2Tag(), p_demux, p_demux_meta, p_meta );
 488     }
 489     else if( WavPack::File* wavpack = dynamic_cast<WavPack::File*>(f.file()) )
 490     {
 491         if( wavpack->APETag() )
 492             ReadMetaFromAPE( wavpack->APETag(), p_demux, p_demux_meta, p_meta );
 493     }
 494
 495     return VLC_SUCCESS;
 496 }
 497
 498
 499
 500 /**
 501  * Write meta information to APE tags
 502  * @param tag: the APE tag
 503  * @param p_item: the input item
 504  */
 505 static void WriteMetaToAPE( APE::Tag* tag, input_item_t* p_item )
 506 {
 507     char* psz_meta;
 508 #define WRITE( metaName, keyName )                      \
 509     psz_meta = input_item_Get##metaName( p_item );      \
 510     if( psz_meta )                                      \
 511     {                                                   \
 512         String key( keyName, String::UTF8 );            \
 513         String value( psz_meta, String::UTF8 );         \
 514         tag->addValue( key, value, true );              \
 515     }                                                   \
 516     free( psz_meta );
 517
 518     WRITE( Copyright, "COPYRIGHT" );
 519     WRITE( Language, "LANGUAGE" );
 520     WRITE( Publisher, "PUBLISHER" );
 521
 522 #undef WRITE
 523 }
 524
 525
 526
 527 /**
 528  * Write meta information to id3v2 tags
 529  * @param tag: the id3v2 tag
 530  * @param p_input: the input item
 531  */
 532 static void WriteMetaToId3v2( ID3v2::Tag* tag, input_item_t* p_item )
 533 {
 534     char* psz_meta;
 535 #define WRITE( metaName, tagName )                                            \
 536     psz_meta = input_item_Get##metaName( p_item );                            \
 537     if( psz_meta )                                                            \
 538     {                                                                         \
 539         ByteVector p_byte( tagName, 4 );                                      \
 540         tag->removeFrames( p_byte );                                         \
 541         ID3v2::TextIdentificationFrame* p_frame =                             \
 542             new ID3v2::TextIdentificationFrame( p_byte, String::UTF8 );       \
 543         p_frame->setText( psz_meta );                                         \
 544         tag->addFrame( p_frame );                                             \
 545     }                                                                         \
 546     free( psz_meta );
 547
 548     WRITE( Copyright, "TCOP" );
 549     WRITE( EncodedBy, "TENC" );
 550     WRITE( Language,  "TLAN" );
 551     WRITE( Publisher, "TPUB" );
 552
 553 #undef WRITE
 554 }
 555
 556
 557
 558 /**
 559  * Write the meta information to XiphComments
 560  * @param tag: the Xiph Comment
 561  * @param p_input: the input item
 562  */
 563 static void WriteMetaToXiph( Ogg::XiphComment* tag, input_item_t* p_item )
 564 {
 565     char* psz_meta;
 566 #define WRITE( metaName, keyName )                      \
 567     psz_meta = input_item_Get##metaName( p_item );      \
 568     if( psz_meta )                                      \
 569     {                                                   \
 570         String key( keyName, String::UTF8 );            \
 571         String value( psz_meta, String::UTF8 );         \
 572         tag->addField( key, value, true );              \
 573     }                                                   \
 574     free( psz_meta );
 575
 576     WRITE( Copyright, "COPYRIGHT" );
 577
 578 #undef WRITE
 579 }
 580
 581
 582
 583 /**
 584  * Set the tags to the file using TagLib
 585  * @param p_this: the demux object
 586  * @return VLC_SUCCESS if the operation success
 587  */
 588
 589 static int WriteMeta( vlc_object_t *p_this )
 590 {
 591     vlc_mutex_locker locker (&taglib_lock);
 592     meta_export_t *p_export = (meta_export_t *)p_this;
 593     input_item_t *p_item = p_export->p_item;
 594     FileRef f;
 595
 596     if( !p_item )
 597     {
 598         msg_Err( p_this, "Can't save meta data of an empty input" );
 599         return VLC_EGENERIC;
 600     }
 601
 602 #if defined(WIN32) || defined (UNDER_CE)
 603     wchar_t wpath[MAX_PATH + 1];
 604     if( !MultiByteToWideChar( CP_UTF8, 0, p_export->psz_file, -1, wpath, MAX_PATH) )
 605         return VLC_EGENERIC;
 606     wpath[MAX_PATH] = L'\0';
 607     f = FileRef( wpath );
 608 #else
 609     const char* local_name = ToLocale( p_export->psz_file );
 610     if( !local_name )
 611         return VLC_EGENERIC;
 612     f = FileRef( local_name );
 613     LocaleFree( local_name );
 614 #endif
 615
 616     if( f.isNull() || !f.tag() || f.file()->readOnly() )
 617     {
 618         msg_Err( p_this, "File %s can't be opened for tag writing",
 619                  p_export->psz_file );
 620         return VLC_EGENERIC;
 621     }
 622
 623     msg_Dbg( p_this, "Writing metadata for %s", p_export->psz_file );
 624
 625     Tag *p_tag = f.tag();
 626
 627     char *psz_meta;
 628
 629 #define SET( a, b )                                             \
 630     psz_meta = input_item_Get ## a( p_item );                   \
 631     if( psz_meta )                                              \
 632     {                                                           \
 633         String tmp( psz_meta, String::UTF8 );                   \
 634         p_tag->set##b( tmp );                                   \
 635     }                                                           \
 636     free( psz_meta );
 637
 638     // Saving all common fields
 639     // If the title is empty, use the name
 640     SET( TitleFbName, Title );
 641     SET( Artist, Artist );
 642     SET( Album, Album );
 643     SET( Description, Comment );
 644     SET( Genre, Genre );
 645
 646 #undef SET
 647
 648     psz_meta = input_item_GetDate( p_item );
 649     if( psz_meta ) p_tag->setYear( atoi( psz_meta ) );
 650     free( psz_meta );
 651
 652     psz_meta = input_item_GetTrackNum( p_item );
 653     if( psz_meta ) p_tag->setTrack( atoi( psz_meta ) );
 654     free( psz_meta );
 655
 656
 657     // Try now to write special tags
 658     if( FLAC::File* flac = dynamic_cast<FLAC::File*>(f.file()) )
 659     {
 660         if( flac->ID3v2Tag() )
 661             WriteMetaToId3v2( flac->ID3v2Tag(), p_item );
 662         else if( flac->xiphComment() )
 663             WriteMetaToXiph( flac->xiphComment(), p_item );
 664     }
 665     else if( MPC::File* mpc = dynamic_cast<MPC::File*>(f.file()) )
 666     {
 667         if( mpc->APETag() )
 668             WriteMetaToAPE( mpc->APETag(), p_item );
 669     }
 670     else if( MPEG::File* mpeg = dynamic_cast<MPEG::File*>(f.file()) )
 671     {
 672         if( mpeg->ID3v2Tag() )
 673             WriteMetaToId3v2( mpeg->ID3v2Tag(), p_item );
 674         else if( mpeg->APETag() )
 675             WriteMetaToAPE( mpeg->APETag(), p_item );
 676     }
 677     else if( Ogg::File* ogg = dynamic_cast<Ogg::File*>(f.file()) )
 678     {
 679         if( Ogg::FLAC::File* ogg_flac = dynamic_cast<Ogg::FLAC::File*>(f.file()))
 680             WriteMetaToXiph( ogg_flac->tag(), p_item );
 681         else if( Ogg::Speex::File* ogg_speex = dynamic_cast<Ogg::Speex::File*>(f.file()) )
 682             WriteMetaToXiph( ogg_speex->tag(), p_item );
 683         else if( Ogg::Vorbis::File* ogg_vorbis = dynamic_cast<Ogg::Vorbis::File*>(f.file()) )
 684             WriteMetaToXiph( ogg_vorbis->tag(), p_item );
 685     }
 686 #ifdef TAGLIB_WITH_ASF
 687     else if( RIFF::File* riff = dynamic_cast<RIFF::File*>(f.file()) )
 688     {
 689         if( RIFF::AIFF::File* riff_aiff = dynamic_cast<RIFF::AIFF::File*>(f.file()) )
 690             WriteMetaToId3v2( riff_aiff->tag(), p_item );
 691         else if( RIFF::WAV::File* riff_wav = dynamic_cast<RIFF::WAV::File*>(f.file()) )
 692             WriteMetaToId3v2( riff_wav->tag(), p_item );
 693     }
 694 #endif
 695     else if( TrueAudio::File* trueaudio = dynamic_cast<TrueAudio::File*>(f.file()) )
 696     {
 697         if( trueaudio->ID3v2Tag() )
 698             WriteMetaToId3v2( trueaudio->ID3v2Tag(), p_item );
 699     }
 700     else if( WavPack::File* wavpack = dynamic_cast<WavPack::File*>(f.file()) )
 701     {
 702         if( wavpack->APETag() )
 703             WriteMetaToAPE( wavpack->APETag(), p_item );
 704     }
 705
 706     // Save the meta data
 707     f.save();
 708
 709     return VLC_SUCCESS;
 710 }
 711