modules/meta_engine/taglib.cpp

   1 /*****************************************************************************
   2  * taglib.cpp: Taglib tag parser/writer
   3  *****************************************************************************
   4  * Copyright (C) 2003-2016 VLC authors and VideoLAN
   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 it
  12  * under the terms of the GNU Lesser General Public License as published by
  13  * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public License
  22  * along with this program; if not, write to the Free Software Foundation,
  23  * 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_demux.h>              /* demux_meta_t */
  33 #include <vlc_strings.h>            /* vlc_b64_decode_binary */
  34 #include <vlc_input.h>              /* for attachment_new */
  35 #include <vlc_url.h>                /* vlc_uri2path */
  36 #include <vlc_mime.h>               /* mime type */
  37 #include <vlc_fs.h>
  38
  39 #include <sys/stat.h>
  40
  41 #ifdef _WIN32
  42 # include <vlc_charset.h>           /* ToWide */
  43 # include <io.h>
  44 #else
  45 # include <unistd.h>
  46 #endif
  47
  48 // Taglib headers
  49 #ifdef _WIN32
  50 # define TAGLIB_STATIC
  51 #endif
  52 #include <taglib.h>
  53
  54 #define VERSION_INT(a, b, c) ((a)<<16 | (b)<<8 | (c))
  55 #define TAGLIB_VERSION VERSION_INT(TAGLIB_MAJOR_VERSION, \
  56                                    TAGLIB_MINOR_VERSION, \
  57                                    TAGLIB_PATCH_VERSION)
  58
  59 #define TAGLIB_VERSION_1_11 VERSION_INT(1,11,0)
  60
  61 #include <fileref.h>
  62 #include <tag.h>
  63 #include <tbytevector.h>
  64
  65 /* Support for stream-based metadata */
  66 #if TAGLIB_VERSION >= TAGLIB_VERSION_1_11
  67 # include <vlc_access.h>
  68 # include <tiostream.h>
  69 #endif
  70
  71 #include <apefile.h>
  72 #include <asffile.h>
  73 #include <apetag.h>
  74 #include <flacfile.h>
  75 #include <mpcfile.h>
  76 #include <mpegfile.h>
  77 #include <mp4file.h>
  78 #include <oggfile.h>
  79 #include <oggflacfile.h>
  80 #include <opusfile.h>
  81 #include "../demux/xiph_metadata.h"
  82
  83 #include <aifffile.h>
  84 #include <wavfile.h>
  85
  86 #include <speexfile.h>
  87 #include <trueaudiofile.h>
  88 #include <vorbisfile.h>
  89 #include <wavpackfile.h>
  90
  91 #include <attachedpictureframe.h>
  92 #include <textidentificationframe.h>
  93 #include <uniquefileidentifierframe.h>
  94
  95 using namespace TagLib;
  96
  97
  98 #include <algorithm>
  99
 100 namespace VLCTagLib
 101 {
 102     template <class T>
 103     class ExtResolver : public FileRef::FileTypeResolver
 104     {
 105         public:
 106             ExtResolver(const std::string &);
 107             ~ExtResolver() {}
 108             virtual File *createFile(FileName, bool, AudioProperties::ReadStyle) const;
 109
 110         protected:
 111             std::string ext;
 112     };
 113 }
 114
 115 template <class T>
 116 VLCTagLib::ExtResolver<T>::ExtResolver(const std::string & ext) : FileTypeResolver()
 117 {
 118     this->ext = ext;
 119     std::transform(this->ext.begin(), this->ext.end(), this->ext.begin(), ::toupper);
 120 }
 121
 122 template <class T>
 123 File *VLCTagLib::ExtResolver<T>::createFile(FileName fileName, bool, AudioProperties::ReadStyle) const
 124 {
 125     std::string filename = std::string(fileName);
 126     std::size_t namesize = filename.size();
 127
 128     if (namesize > ext.length())
 129     {
 130         std::string fext = filename.substr(namesize - ext.length(), ext.length());
 131         std::transform(fext.begin(), fext.end(), fext.begin(), ::toupper);
 132         if(fext == ext)
 133             return new T(fileName, false, AudioProperties::Fast);
 134     }
 135
 136     return 0;
 137 }
 138
 139 #if TAGLIB_VERSION >= TAGLIB_VERSION_1_11
 140 static VLCTagLib::ExtResolver<MPEG::File> aacresolver(".aac");
 141 #endif
 142 static VLCTagLib::ExtResolver<MP4::File> m4vresolver(".m4v");
 143 static bool b_extensions_registered = false;
 144
 145 // taglib is not thread safe
 146 static vlc_mutex_t taglib_lock = VLC_STATIC_MUTEX;
 147
 148 // Local functions
 149 static int ReadMeta    ( vlc_object_t * );
 150 static int WriteMeta   ( vlc_object_t * );
 151
 152 vlc_module_begin ()
 153     set_capability( "meta reader", 1000 )
 154     set_callbacks( ReadMeta, NULL )
 155     add_submodule ()
 156         set_capability( "meta writer", 50 )
 157         set_callbacks( WriteMeta, NULL )
 158 vlc_module_end ()
 159
 160 #if TAGLIB_VERSION >= TAGLIB_VERSION_1_11
 161 class VlcIostream : public IOStream
 162 {
 163 public:
 164     VlcIostream(stream_t* p_stream)
 165         : m_stream( p_stream )
 166         , m_previousPos( 0 )
 167     {
 168     }
 169
 170     ~VlcIostream()
 171     {
 172         vlc_stream_Delete( m_stream );
 173     }
 174
 175     FileName name() const
 176     {
 177         return m_stream->psz_location;
 178     }
 179
 180     ByteVector readBlock(ulong length)
 181     {
 182         ByteVector res(length, 0);
 183         ssize_t i_read = vlc_stream_Read( m_stream, res.data(), length);
 184         if (i_read < 0)
 185             return ByteVector::null;
 186         else if ((size_t)i_read != length)
 187             res.resize(i_read);
 188         return res;
 189     }
 190
 191     void writeBlock(const ByteVector&)
 192     {
 193         // Let's stay Read-Only for now
 194     }
 195
 196     void insert(const ByteVector&, ulong, ulong)
 197     {
 198     }
 199
 200     void removeBlock(ulong, ulong)
 201     {
 202     }
 203
 204     bool readOnly() const
 205     {
 206         return true;
 207     }
 208
 209     bool isOpen() const
 210     {
 211         return true;
 212     }
 213
 214     void seek(long offset, Position p)
 215     {
 216         uint64_t pos = 0;
 217         switch (p)
 218         {
 219             case Current:
 220                 pos = m_previousPos;
 221                 break;
 222             case End:
 223                 pos = length();
 224                 break;
 225             default:
 226                 break;
 227         }
 228         if (vlc_stream_Seek( m_stream, pos + offset ) == 0)
 229             m_previousPos = pos + offset;
 230     }
 231
 232     void clear()
 233     {
 234         return;
 235     }
 236
 237     long tell() const
 238     {
 239         return m_previousPos;
 240     }
 241
 242     long length()
 243     {
 244         uint64_t i_size;
 245         if (vlc_stream_GetSize( m_stream, &i_size ) != VLC_SUCCESS)
 246             return -1;
 247         return i_size;
 248     }
 249
 250     void truncate(long)
 251     {
 252     }
 253
 254 private:
 255     stream_t* m_stream;
 256     int64_t m_previousPos;
 257 };
 258 #endif /* TAGLIB_VERSION_1_11 */
 259
 260 static int ExtractCoupleNumberValues( vlc_meta_t* p_meta, const char *psz_value,
 261         vlc_meta_type_t first, vlc_meta_type_t second)
 262 {
 263     unsigned int i_trknum, i_trktot;
 264
 265     int i_ret = sscanf( psz_value, "%u/%u", &i_trknum, &i_trktot );
 266     char psz_trck[11];
 267     if( i_ret >= 1 )
 268     {
 269         snprintf( psz_trck, sizeof( psz_trck ), "%u", i_trknum );
 270         vlc_meta_Set( p_meta, first, psz_trck );
 271     }
 272     if( i_ret == 2)
 273     {
 274         snprintf( psz_trck, sizeof( psz_trck ), "%u", i_trktot );
 275         vlc_meta_Set( p_meta, second, psz_trck );
 276     }
 277     return i_ret;
 278 }
 279
 280 /**
 281  * Read meta information from APE tags
 282  * @param tag: the APE tag
 283  * @param p_demux_meta: the demuxer meta
 284  * @param p_meta: the meta
 285  */
 286 static void ReadMetaFromAPE( APE::Tag* tag, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 287 {
 288     APE::ItemListMap fields ( tag->itemListMap() );
 289     APE::ItemListMap::Iterator iter;
 290
 291     iter = fields.find("COVER ART (FRONT)");
 292     if( iter != fields.end()
 293         && !iter->second.isEmpty()
 294         && iter->second.type() == APE::Item::Binary)
 295     {
 296         input_attachment_t *p_attachment;
 297
 298         const ByteVector picture = iter->second.binaryData();
 299         const char *p_data = picture.data();
 300         unsigned i_data = picture.size();
 301
 302         /* Null terminated filename followed by the image data */
 303         size_t desc_len = strnlen(p_data, i_data);
 304         if( desc_len < i_data && IsUTF8( p_data ) )
 305         {
 306             const char *psz_name = p_data;
 307             const char *psz_mime = vlc_mime_Ext2Mime( psz_name );
 308             p_data += desc_len + 1; /* '\0' */
 309             i_data -= desc_len + 1;
 310
 311             msg_Dbg( p_demux_meta, "Found embedded art: %s (%s) is %u bytes",
 312                      psz_name, psz_mime, i_data );
 313
 314             p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 315                                     psz_name, p_data, i_data );
 316             if( p_attachment )
 317             {
 318                 TAB_APPEND_CAST( (input_attachment_t**),
 319                                  p_demux_meta->i_attachments, p_demux_meta->attachments,
 320                                  p_attachment );
 321
 322                 char *psz_url;
 323                 if( asprintf( &psz_url, "attachment://%s", p_attachment->psz_name ) != -1 )
 324                 {
 325                     vlc_meta_SetArtURL( p_meta, psz_url );
 326                     free( psz_url );
 327                 }
 328             }
 329         }
 330
 331         fields.erase(iter);
 332     }
 333
 334 #define SET( keyName, metaName ) \
 335     iter = fields.find(keyName); \
 336     if( iter != fields.end() && !iter->second.isEmpty() ) { \
 337         vlc_meta_Set##metaName( p_meta, iter->second.toString().toCString( true ) ); \
 338         fields.erase(iter); \
 339     }
 340
 341 #define SET_EXTRA( keyName, metaName ) \
 342     iter = fields.find( keyName ); \
 343     if( iter != fields.end() && !iter->second.isEmpty() ) { \
 344         vlc_meta_AddExtra( p_meta, metaName, iter->second.toString().toCString( true ) ); \
 345         fields.erase(iter); \
 346     }
 347
 348     SET( "ALBUM", Album );
 349     SET( "ARTIST", Artist );
 350     SET( "COMMENT", Description );
 351     SET( "GENRE", Genre );
 352     SET( "TITLE", Title );
 353     SET( "COPYRIGHT", Copyright );
 354     SET( "LANGUAGE", Language );
 355     SET( "PUBLISHER", Publisher );
 356     SET( "MUSICBRAINZ_TRACKID", TrackID );
 357
 358     SET_EXTRA( "MUSICBRAINZ_ALBUMID", VLC_META_EXTRA_MB_ALBUMID );
 359
 360 #undef SET
 361 #undef SET_EXTRA
 362
 363     /* */
 364     iter = fields.find( "TRACK" );
 365     if( iter != fields.end() && !iter->second.isEmpty() )
 366     {
 367         ExtractCoupleNumberValues( p_meta, iter->second.toString().toCString( true ),
 368                 vlc_meta_TrackNumber, vlc_meta_TrackTotal );
 369         fields.erase( iter );
 370     }
 371
 372     /* Remainings */
 373     for( iter = fields.begin(); iter != fields.end(); ++iter )
 374     {
 375         if( iter->second.isEmpty() )
 376             continue;
 377
 378         if( iter->second.type() != APE::Item::Text )
 379             continue;
 380
 381         vlc_meta_AddExtra( p_meta,
 382                            iter->first.toCString( true ),
 383                            iter->second.toString().toCString( true ) );
 384     }
 385 }
 386
 387
 388 /**
 389  * Read meta information from ASF tags
 390  * @param tag: the ASF tag
 391  * @param p_demux_meta: the demuxer meta
 392  * @param p_meta: the meta
 393  */
 394 static void ReadMetaFromASF( ASF::Tag* tag, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 395 {
 396
 397     ASF::AttributeList list;
 398 #define SET( keyName, metaName )                                                     \
 399     if( tag->attributeListMap().contains(keyName) )                                  \
 400     {                                                                                \
 401         list = tag->attributeListMap()[keyName];                                     \
 402         vlc_meta_Set##metaName( p_meta, list.front().toString().toCString( true ) ); \
 403     }
 404
 405 #define SET_EXTRA( keyName, metaName )                                                     \
 406     if( tag->attributeListMap().contains(keyName) )                                  \
 407     {                                                                                \
 408         list = tag->attributeListMap()[keyName];                                     \
 409         vlc_meta_AddExtra( p_meta, metaName, list.front().toString().toCString( true ) ); \
 410     }
 411
 412     SET("MusicBrainz/Track Id", TrackID );
 413     SET_EXTRA("MusicBrainz/Album Id", VLC_META_EXTRA_MB_ALBUMID );
 414
 415 #undef SET
 416 #undef SET_EXTRA
 417
 418     // List the pictures
 419     list = tag->attributeListMap()["WM/Picture"];
 420     ASF::AttributeList::Iterator iter;
 421     for( iter = list.begin(); iter != list.end(); iter++ )
 422     {
 423         const ASF::Picture asfPicture = (*iter).toPicture();
 424         const ByteVector picture = asfPicture.picture();
 425         const char *psz_mime = asfPicture.mimeType().toCString();
 426         const char *p_data = picture.data();
 427         const unsigned i_data = picture.size();
 428         char *psz_name;
 429         input_attachment_t *p_attachment;
 430
 431         if( asfPicture.description().size() > 0 )
 432             psz_name = strdup( asfPicture.description().toCString( true ) );
 433         else
 434         {
 435             if( asprintf( &psz_name, "%i", asfPicture.type() ) == -1 )
 436                 psz_name = NULL;
 437         }
 438
 439         if( unlikely(psz_name == NULL) )
 440             continue;
 441
 442         msg_Dbg( p_demux_meta, "Found embedded art: %s (%s) is %u bytes",
 443                  psz_name, psz_mime, i_data );
 444
 445         p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 446                                 psz_name, p_data, i_data );
 447         if( p_attachment )
 448             TAB_APPEND_CAST( (input_attachment_t**),
 449                              p_demux_meta->i_attachments, p_demux_meta->attachments,
 450                              p_attachment );
 451         char *psz_url;
 452         if( asprintf( &psz_url, "attachment://%s", psz_name ) != -1 )
 453         {
 454             vlc_meta_SetArtURL( p_meta, psz_url );
 455             free( psz_url );
 456         }
 457         free( psz_name );
 458     }
 459 }
 460
 461
 462 /**
 463  * Read meta information from id3v2 tags
 464  * @param tag: the id3v2 tag
 465  * @param p_demux_meta: the demuxer meta
 466  * @param p_meta: the meta
 467  */
 468 static void ReadMetaFromId3v2( ID3v2::Tag* tag, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 469 {
 470     // Get the unique file identifier
 471     ID3v2::FrameList list = tag->frameListMap()["UFID"];
 472     ID3v2::FrameList::Iterator iter;
 473     for( iter = list.begin(); iter != list.end(); iter++ )
 474     {
 475         ID3v2::UniqueFileIdentifierFrame* p_ufid =
 476                 dynamic_cast<ID3v2::UniqueFileIdentifierFrame*>(*iter);
 477         if( !p_ufid )
 478             continue;
 479         const char *owner = p_ufid->owner().toCString();
 480         if (!strcmp( owner, "http://musicbrainz.org" ))
 481         {
 482             /* ID3v2 UFID contains up to 64 bytes binary data
 483              * but in our case it will be a '\0'
 484              * terminated string */
 485             char psz_ufid[64];
 486             int max_size = __MIN( p_ufid->identifier().size(), 63);
 487             strncpy( psz_ufid, p_ufid->identifier().data(), max_size );
 488             psz_ufid[max_size] = '\0';
 489             vlc_meta_SetTrackID( p_meta, psz_ufid );
 490         }
 491     }
 492
 493     // Get the use text
 494     list = tag->frameListMap()["TXXX"];
 495     for( iter = list.begin(); iter != list.end(); iter++ )
 496     {
 497         ID3v2::UserTextIdentificationFrame* p_txxx =
 498                 dynamic_cast<ID3v2::UserTextIdentificationFrame*>(*iter);
 499         if( !p_txxx )
 500             continue;
 501         if( !strcmp( p_txxx->description().toCString( true ), "TRACKTOTAL" ) )
 502         {
 503             vlc_meta_Set( p_meta, vlc_meta_TrackTotal, p_txxx->fieldList().back().toCString( true ) );
 504             continue;
 505         }
 506         if( !strcmp( p_txxx->description().toCString( true ), "MusicBrainz Album Id" ) )
 507         {
 508             vlc_meta_AddExtra( p_meta, VLC_META_EXTRA_MB_ALBUMID, p_txxx->fieldList().back().toCString( true ) );
 509             continue;
 510         }
 511         vlc_meta_AddExtra( p_meta, p_txxx->description().toCString( true ),
 512                            p_txxx->fieldList().back().toCString( true ) );
 513     }
 514
 515     // Get some more information
 516 #define SET( tagName, metaName )                                               \
 517     list = tag->frameListMap()[tagName];                                       \
 518     if( !list.isEmpty() )                                                      \
 519         vlc_meta_Set##metaName( p_meta,                                        \
 520                                 (*list.begin())->toString().toCString( true ) );
 521
 522 #define SET_EXTRA( tagName, metaName )\
 523     list = tag->frameListMap()[tagName];\
 524     if( !list.isEmpty() )\
 525         vlc_meta_AddExtra( p_meta, metaName,\
 526                            (*list.begin())->toString().toCString( true ) );
 527
 528
 529     SET( "TCOP", Copyright );
 530     SET( "TENC", EncodedBy );
 531     SET( "TLAN", Language );
 532     SET( "TPUB", Publisher );
 533     SET( "TPE2", AlbumArtist );
 534     SET_EXTRA( "USLT", "Lyrics" );
 535
 536 #undef SET_EXTRA
 537 #undef SET
 538
 539     /* */
 540     list = tag->frameListMap()["TRCK"];
 541     if( !list.isEmpty() )
 542     {
 543         ExtractCoupleNumberValues( p_meta, (*list.begin())->toString().toCString( true ),
 544                 vlc_meta_TrackNumber, vlc_meta_TrackTotal );
 545     }
 546
 547     /* */
 548     list = tag->frameListMap()["TPOS"];
 549     if( !list.isEmpty() )
 550     {
 551         ExtractCoupleNumberValues( p_meta, (*list.begin())->toString().toCString( true ),
 552                 vlc_meta_DiscNumber, vlc_meta_DiscTotal );
 553     }
 554
 555     /* Preferred type of image
 556      * The 21 types are defined in id3v2 standard:
 557      * http://www.id3.org/id3v2.4.0-frames */
 558     static const int pi_cover_score[] = {
 559         0,  /* Other */
 560         5,  /* 32x32 PNG image that should be used as the file icon */
 561         4,  /* File icon of a different size or format. */
 562         20, /* Front cover image of the album. */
 563         19, /* Back cover image of the album. */
 564         13, /* Inside leaflet page of the album. */
 565         18, /* Image from the album itself. */
 566         17, /* Picture of the lead artist or soloist. */
 567         16, /* Picture of the artist or performer. */
 568         14, /* Picture of the conductor. */
 569         15, /* Picture of the band or orchestra. */
 570         9,  /* Picture of the composer. */
 571         8,  /* Picture of the lyricist or text writer. */
 572         7,  /* Picture of the recording location or studio. */
 573         10, /* Picture of the artists during recording. */
 574         11, /* Picture of the artists during performance. */
 575         6,  /* Picture from a movie or video related to the track. */
 576         1,  /* Picture of a large, coloured fish. */
 577         12, /* Illustration related to the track. */
 578         3,  /* Logo of the band or performer. */
 579         2   /* Logo of the publisher (record company). */
 580     };
 581     #define PI_COVER_SCORE_SIZE (sizeof (pi_cover_score) / sizeof (pi_cover_score[0]))
 582     int i_score = -1;
 583
 584     // Try now to get embedded art
 585     list = tag->frameListMap()[ "APIC" ];
 586     if( list.isEmpty() )
 587         return;
 588
 589     for( iter = list.begin(); iter != list.end(); iter++ )
 590     {
 591         ID3v2::AttachedPictureFrame* p_apic =
 592             dynamic_cast<ID3v2::AttachedPictureFrame*>(*iter);
 593         if( !p_apic )
 594             continue;
 595         input_attachment_t *p_attachment;
 596
 597         const char *psz_mime;
 598         char *psz_name, *psz_description;
 599
 600         // Get the mime and description of the image.
 601         // If the description is empty, take the type as a description
 602         psz_mime = p_apic->mimeType().toCString( true );
 603         if( p_apic->description().size() > 0 )
 604             psz_description = strdup( p_apic->description().toCString( true ) );
 605         else
 606         {
 607             if( asprintf( &psz_description, "%i", p_apic->type() ) == -1 )
 608                 psz_description = NULL;
 609         }
 610
 611         if( !psz_description )
 612             continue;
 613         psz_name = psz_description;
 614
 615         /* some old iTunes version not only sets incorrectly the mime type
 616          * or the description of the image,
 617          * but also embeds incorrectly the image.
 618          * Recent versions seem to behave correctly */
 619         if( !strncmp( psz_mime, "PNG", 3 ) ||
 620             !strncmp( psz_name, "\xC2\x89PNG", 5 ) )
 621         {
 622             msg_Warn( p_demux_meta, "Invalid picture embedded by broken iTunes version" );
 623             free( psz_description );
 624             continue;
 625         }
 626
 627         const ByteVector picture = p_apic->picture();
 628         const char *p_data = picture.data();
 629         const unsigned i_data = picture.size();
 630
 631         msg_Dbg( p_demux_meta, "Found embedded art: %s (%s) is %u bytes",
 632                  psz_name, psz_mime, i_data );
 633
 634         p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 635                                 psz_description, p_data, i_data );
 636         if( !p_attachment )
 637         {
 638             free( psz_description );
 639             continue;
 640         }
 641         TAB_APPEND_CAST( (input_attachment_t**),
 642                          p_demux_meta->i_attachments, p_demux_meta->attachments,
 643                          p_attachment );
 644         free( psz_description );
 645
 646         unsigned i_pic_type = p_apic->type();
 647         if( i_pic_type >= PI_COVER_SCORE_SIZE )
 648             i_pic_type = 0; // Defaults to "Other"
 649
 650         if( pi_cover_score[i_pic_type] > i_score )
 651         {
 652             i_score = pi_cover_score[i_pic_type];
 653             char *psz_url;
 654             if( asprintf( &psz_url, "attachment://%s",
 655                           p_attachment->psz_name ) == -1 )
 656                 continue;
 657             vlc_meta_SetArtURL( p_meta, psz_url );
 658             free( psz_url );
 659         }
 660     }
 661 }
 662
 663
 664 /**
 665  * Read the meta information from XiphComments
 666  * @param tag: the Xiph Comment
 667  * @param p_demux_meta: the demuxer meta
 668  * @param p_meta: the meta
 669  */
 670 static void ReadMetaFromXiph( Ogg::XiphComment* tag, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 671 {
 672     StringList list;
 673     bool hasTrackTotal = false;
 674 #define SET( keyName, metaName )                                               \
 675     list = tag->fieldListMap()[keyName];                                       \
 676     if( !list.isEmpty() )                                                      \
 677         vlc_meta_Set##metaName( p_meta, (*list.begin()).toCString( true ) );
 678
 679 #define SET_EXTRA( keyName, metaName ) \
 680     list = tag->fieldListMap()[keyName]; \
 681     if( !list.isEmpty() ) \
 682         vlc_meta_AddExtra( p_meta, keyName, (*list.begin()).toCString( true ) );
 683
 684     SET( "COPYRIGHT", Copyright );
 685     SET( "ORGANIZATION", Publisher );
 686     SET( "DATE", Date );
 687     SET( "ENCODER", EncodedBy );
 688     SET( "RATING", Rating );
 689     SET( "LANGUAGE", Language );
 690     SET( "MUSICBRAINZ_TRACKID", TrackID );
 691     SET( "ALBUMARTIST", AlbumArtist );
 692     SET( "DISCNUMBER", DiscNumber );
 693
 694     SET_EXTRA( "MUSICBRAINZ_ALBUMID", VLC_META_EXTRA_MB_ALBUMID );
 695 #undef SET
 696 #undef SET_EXTRA
 697
 698     list = tag->fieldListMap()["TRACKNUMBER"];
 699     if( !list.isEmpty() )
 700     {
 701         int i_values = ExtractCoupleNumberValues( p_meta, (*list.begin()).toCString( true ),
 702                  vlc_meta_TrackNumber, vlc_meta_TrackTotal );
 703         hasTrackTotal = i_values == 2;
 704     }
 705     if( !hasTrackTotal )
 706     {
 707         list = tag->fieldListMap()["TRACKTOTAL"];
 708         if( list.isEmpty() )
 709             list = tag->fieldListMap()["TOTALTRACKS"];
 710         if( !list.isEmpty() )
 711             vlc_meta_SetTrackTotal( p_meta, (*list.begin()).toCString( true ) );
 712     }
 713
 714     // Try now to get embedded art
 715     StringList mime_list = tag->fieldListMap()[ "COVERARTMIME" ];
 716     StringList art_list = tag->fieldListMap()[ "COVERART" ];
 717
 718     input_attachment_t *p_attachment;
 719
 720     if( mime_list.size() != 0 && art_list.size() != 0 )
 721     {
 722         // We get only the first covert art
 723         if( mime_list.size() > 1 || art_list.size() > 1 )
 724             msg_Warn( p_demux_meta, "Found %i embedded arts, so using only the first one",
 725                     art_list.size() );
 726
 727         const char* psz_name = "cover";
 728         const char* psz_mime = mime_list[0].toCString(true);
 729         const char* psz_description = "cover";
 730
 731         uint8_t *p_data;
 732         int i_data = vlc_b64_decode_binary( &p_data, art_list[0].toCString(true) );
 733
 734         msg_Dbg( p_demux_meta, "Found embedded art: %s (%s) is %i bytes",
 735                 psz_name, psz_mime, i_data );
 736
 737         p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 738                 psz_description, p_data, i_data );
 739         free( p_data );
 740     }
 741     else
 742     {
 743         art_list = tag->fieldListMap()[ "METADATA_BLOCK_PICTURE" ];
 744         if( art_list.size() == 0 )
 745             return;
 746
 747         uint8_t *p_data;
 748         int i_cover_score;
 749         int i_cover_idx;
 750         int i_data = vlc_b64_decode_binary( &p_data, art_list[0].toCString(true) );
 751         i_cover_score = i_cover_idx = 0;
 752         /* TODO: Use i_cover_score / i_cover_idx to select the picture. */
 753         p_attachment = ParseFlacPicture( p_data, i_data, 0,
 754             &i_cover_score, &i_cover_idx );
 755         free( p_data );
 756     }
 757
 758     if (p_attachment) {
 759         TAB_APPEND_CAST( (input_attachment_t**),
 760                 p_demux_meta->i_attachments, p_demux_meta->attachments,
 761                 p_attachment );
 762
 763         char *psz_url;
 764         if( asprintf( &psz_url, "attachment://%s", p_attachment->psz_name ) != -1 ) {
 765             vlc_meta_SetArtURL( p_meta, psz_url );
 766             free( psz_url );
 767         }
 768     }
 769 }
 770
 771 /**
 772  * Read the meta information from mp4 specific tags
 773  * @param tag: the mp4 tag
 774  * @param p_demux_meta: the demuxer meta
 775  * @param p_meta: the meta
 776  */
 777 static void ReadMetaFromMP4( MP4::Tag* tag, demux_meta_t *p_demux_meta, vlc_meta_t* p_meta )
 778 {
 779     MP4::Item list;
 780 #define SET( keyName, metaName )                                                             \
 781     if( tag->itemListMap().contains(keyName) )                                               \
 782     {                                                                                        \
 783         list = tag->itemListMap()[keyName];                                                  \
 784         vlc_meta_Set##metaName( p_meta, list.toStringList().front().toCString( true ) );     \
 785     }
 786 #define SET_EXTRA( keyName, metaName )                                                   \
 787     if( tag->itemListMap().contains(keyName) )                                  \
 788     {                                                                                \
 789         list = tag->itemListMap()[keyName];                                     \
 790         vlc_meta_AddExtra( p_meta, metaName, list.toStringList().front().toCString( true ) ); \
 791     }
 792
 793     SET("----:com.apple.iTunes:MusicBrainz Track Id", TrackID );
 794     SET_EXTRA("----:com.apple.iTunes:MusicBrainz Album Id", VLC_META_EXTRA_MB_ALBUMID );
 795
 796 #undef SET
 797 #undef SET_EXTRA
 798
 799     if( tag->itemListMap().contains("covr") )
 800     {
 801         MP4::CoverArtList list = tag->itemListMap()["covr"].toCoverArtList();
 802         const char *psz_format = list[0].format() == MP4::CoverArt::PNG ? "image/png" : "image/jpeg";
 803
 804         msg_Dbg( p_demux_meta, "Found embedded art (%s) is %i bytes",
 805                  psz_format, list[0].data().size() );
 806
 807         input_attachment_t *p_attachment =
 808                 vlc_input_attachment_New( "cover", psz_format, "cover",
 809                                           list[0].data().data(), list[0].data().size() );
 810         if( p_attachment )
 811         {
 812             TAB_APPEND_CAST( (input_attachment_t**),
 813                              p_demux_meta->i_attachments, p_demux_meta->attachments,
 814                              p_attachment );
 815             vlc_meta_SetArtURL( p_meta, "attachment://cover" );
 816         }
 817     }
 818 }
 819
 820 /**
 821  * Get the tags from the file using TagLib
 822  * @param p_this: the demux object
 823  * @return VLC_SUCCESS if the operation success
 824  */
 825 static int ReadMeta( vlc_object_t* p_this)
 826 {
 827     vlc_mutex_locker locker (&taglib_lock);
 828     demux_meta_t*   p_demux_meta = (demux_meta_t *)p_this;
 829     vlc_meta_t*     p_meta;
 830     FileRef f;
 831
 832     p_demux_meta->p_meta = NULL;
 833
 834     char *psz_uri = input_item_GetURI( p_demux_meta->p_item );
 835     if( unlikely(psz_uri == NULL) )
 836         return VLC_ENOMEM;
 837
 838     char *psz_path = vlc_uri2path( psz_uri );
 839 #if VLC_WINSTORE_APP && TAGLIB_VERSION >= TAGLIB_VERSION_1_11
 840     if( psz_path == NULL )
 841     {
 842         free( psz_uri );
 843         return VLC_EGENERIC;
 844     }
 845     free( psz_path );
 846
 847     stream_t *p_stream = vlc_access_NewMRL( p_this, psz_uri );
 848     free( psz_uri );
 849     if( p_stream == NULL )
 850         return VLC_EGENERIC;
 851
 852     VlcIostream s( p_stream );
 853     f = FileRef( &s );
 854 #else /* VLC_WINSTORE_APP */
 855     free( psz_uri );
 856     if( psz_path == NULL )
 857         return VLC_EGENERIC;
 858
 859     if( !b_extensions_registered )
 860     {
 861 #if TAGLIB_VERSION >= TAGLIB_VERSION_1_11
 862         FileRef::addFileTypeResolver( &aacresolver );
 863 #endif
 864         FileRef::addFileTypeResolver( &m4vresolver );
 865         b_extensions_registered = true;
 866     }
 867
 868 #if defined(_WIN32)
 869     wchar_t *wpath = ToWide( psz_path );
 870     if( wpath == NULL )
 871     {
 872         free( psz_path );
 873         return VLC_EGENERIC;
 874     }
 875     f = FileRef( wpath );
 876     free( wpath );
 877 #else
 878     f = FileRef( psz_path );
 879 #endif
 880     free( psz_path );
 881 #endif /* VLC_WINSTORE_APP */
 882
 883     if( f.isNull() )
 884         return VLC_EGENERIC;
 885     if( !f.tag() || f.tag()->isEmpty() )
 886         return VLC_EGENERIC;
 887
 888     p_demux_meta->p_meta = p_meta = vlc_meta_New();
 889     if( !p_meta )
 890         return VLC_ENOMEM;
 891
 892
 893     // Read the tags from the file
 894     Tag* p_tag = f.tag();
 895
 896 #define SET( tag, meta )                                                       \
 897     if( !p_tag->tag().isNull() && !p_tag->tag().isEmpty() )                    \
 898         vlc_meta_Set##meta( p_meta, p_tag->tag().toCString(true) )
 899 #define SETINT( tag, meta )                                                    \
 900     if( p_tag->tag() )                                                         \
 901     {                                                                          \
 902         char psz_tmp[10];                                                      \
 903         snprintf( psz_tmp, 10, "%d", p_tag->tag() );                           \
 904         vlc_meta_Set##meta( p_meta, psz_tmp );                                 \
 905     }
 906
 907     SET( title, Title );
 908     SET( artist, Artist );
 909     SET( album, Album );
 910     SET( comment, Description );
 911     SET( genre, Genre );
 912     SETINT( year, Date );
 913     SETINT( track, TrackNum );
 914
 915 #undef SETINT
 916 #undef SET
 917
 918     TAB_INIT( p_demux_meta->i_attachments, p_demux_meta->attachments );
 919
 920     if( APE::File* ape = dynamic_cast<APE::File*>(f.file()) )
 921     {
 922         if( ape->APETag() )
 923             ReadMetaFromAPE( ape->APETag(), p_demux_meta, p_meta );
 924     }
 925     else
 926     if( ASF::File* asf = dynamic_cast<ASF::File*>(f.file()) )
 927     {
 928         if( asf->tag() )
 929             ReadMetaFromASF( asf->tag(), p_demux_meta, p_meta );
 930     }
 931     else
 932     if( FLAC::File* flac = dynamic_cast<FLAC::File*>(f.file()) )
 933     {
 934         if( flac->ID3v2Tag() )
 935             ReadMetaFromId3v2( flac->ID3v2Tag(), p_demux_meta, p_meta );
 936         else if( flac->xiphComment() )
 937             ReadMetaFromXiph( flac->xiphComment(), p_demux_meta, p_meta );
 938     }
 939     else if( MP4::File *mp4 = dynamic_cast<MP4::File*>(f.file()) )
 940     {
 941         if( mp4->tag() )
 942             ReadMetaFromMP4( mp4->tag(), p_demux_meta, p_meta );
 943     }
 944     else if( MPC::File* mpc = dynamic_cast<MPC::File*>(f.file()) )
 945     {
 946         if( mpc->APETag() )
 947             ReadMetaFromAPE( mpc->APETag(), p_demux_meta, p_meta );
 948     }
 949     else if( MPEG::File* mpeg = dynamic_cast<MPEG::File*>(f.file()) )
 950     {
 951         if( mpeg->APETag() )
 952             ReadMetaFromAPE( mpeg->APETag(), p_demux_meta, p_meta );
 953         if( mpeg->ID3v2Tag() )
 954             ReadMetaFromId3v2( mpeg->ID3v2Tag(), p_demux_meta, p_meta );
 955     }
 956     else if( dynamic_cast<Ogg::File*>(f.file()) )
 957     {
 958         if( Ogg::FLAC::File* ogg_flac = dynamic_cast<Ogg::FLAC::File*>(f.file()))
 959             ReadMetaFromXiph( ogg_flac->tag(), p_demux_meta, p_meta );
 960         else if( Ogg::Speex::File* ogg_speex = dynamic_cast<Ogg::Speex::File*>(f.file()) )
 961             ReadMetaFromXiph( ogg_speex->tag(), p_demux_meta, p_meta );
 962         else if( Ogg::Vorbis::File* ogg_vorbis = dynamic_cast<Ogg::Vorbis::File*>(f.file()) )
 963             ReadMetaFromXiph( ogg_vorbis->tag(), p_demux_meta, p_meta );
 964 #if defined(TAGLIB_OPUSFILE_H)
 965         else if( Ogg::Opus::File* ogg_opus = dynamic_cast<Ogg::Opus::File*>(f.file()) )
 966             ReadMetaFromXiph( ogg_opus->tag(), p_demux_meta, p_meta );
 967 #endif
 968     }
 969     else if( dynamic_cast<RIFF::File*>(f.file()) )
 970     {
 971         if( RIFF::AIFF::File* riff_aiff = dynamic_cast<RIFF::AIFF::File*>(f.file()) )
 972             ReadMetaFromId3v2( riff_aiff->tag(), p_demux_meta, p_meta );
 973         else if( RIFF::WAV::File* riff_wav = dynamic_cast<RIFF::WAV::File*>(f.file()) )
 974             ReadMetaFromId3v2( riff_wav->tag(), p_demux_meta, p_meta );
 975     }
 976     else if( TrueAudio::File* trueaudio = dynamic_cast<TrueAudio::File*>(f.file()) )
 977     {
 978         if( trueaudio->ID3v2Tag() )
 979             ReadMetaFromId3v2( trueaudio->ID3v2Tag(), p_demux_meta, p_meta );
 980     }
 981     else if( WavPack::File* wavpack = dynamic_cast<WavPack::File*>(f.file()) )
 982     {
 983         if( wavpack->APETag() )
 984             ReadMetaFromAPE( wavpack->APETag(), p_demux_meta, p_meta );
 985     }
 986
 987     return VLC_SUCCESS;
 988 }
 989
 990
 991 /**
 992  * Write meta information to APE tags
 993  * @param tag: the APE tag
 994  * @param p_item: the input item
 995  */
 996 static void WriteMetaToAPE( APE::Tag* tag, input_item_t* p_item )
 997 {
 998     char* psz_meta;
 999 #define WRITE( metaName, keyName )                      \
1000     psz_meta = input_item_Get##metaName( p_item );      \
1001     if( psz_meta )                                      \
1002     {                                                   \
1003         String key( keyName, String::UTF8 );            \
1004         String value( psz_meta, String::UTF8 );         \
1005         tag->addValue( key, value, true );              \
1006     }                                                   \
1007     free( psz_meta );
1008
1009     WRITE( Copyright, "COPYRIGHT" );
1010     WRITE( Language, "LANGUAGE" );
1011     WRITE( Publisher, "PUBLISHER" );
1012     WRITE( TrackID, "MUSICBRAINZ_TRACKID" );
1013 #undef WRITE
1014 }
1015
1016
1017 /**
1018  * Write meta information to id3v2 tags
1019  * @param tag: the id3v2 tag
1020  * @param p_input: the input item
1021  */
1022 static void WriteMetaToId3v2( ID3v2::Tag* tag, input_item_t* p_item )
1023 {
1024     char* psz_meta;
1025 #define WRITE( metaName, tagName )                                            \
1026     psz_meta = input_item_Get##metaName( p_item );                            \
1027     if( psz_meta )                                                            \
1028     {                                                                         \
1029         ByteVector p_byte( tagName, 4 );                                      \
1030         tag->removeFrames( p_byte );                                         \
1031         ID3v2::TextIdentificationFrame* p_frame =                             \
1032             new ID3v2::TextIdentificationFrame( p_byte, String::UTF8 );       \
1033         p_frame->setText( psz_meta );                                         \
1034         tag->addFrame( p_frame );                                             \
1035     }                                                                         \
1036     free( psz_meta );
1037
1038     WRITE( Copyright, "TCOP" );
1039     WRITE( EncodedBy, "TENC" );
1040     WRITE( Language,  "TLAN" );
1041     WRITE( Publisher, "TPUB" );
1042
1043 #undef WRITE
1044     /* Known TXXX frames */
1045     ID3v2::FrameList list = tag->frameListMap()["TXXX"];
1046
1047 #define WRITETXXX( metaName, txxName )\
1048     psz_meta = input_item_Get##metaName( p_item );                                       \
1049     if ( psz_meta )                                                                      \
1050     {                                                                                    \
1051         ID3v2::UserTextIdentificationFrame *p_txxx;                                      \
1052         for( ID3v2::FrameList::Iterator iter = list.begin(); iter != list.end(); iter++ )\
1053         {                                                                                \
1054             p_txxx = dynamic_cast<ID3v2::UserTextIdentificationFrame*>(*iter);           \
1055             if( !p_txxx )                                                                \
1056                 continue;                                                                \
1057             if( !strcmp( p_txxx->description().toCString( true ), txxName ) )            \
1058             {                                                                            \
1059                 p_txxx->setText( psz_meta );                                             \
1060                 FREENULL( psz_meta );                                                    \
1061                 break;                                                                   \
1062             }                                                                            \
1063         }                                                                                \
1064         if( psz_meta ) /* not found in existing custom fields */                         \
1065         {                                                                                \
1066             ByteVector p_byte( "TXXX", 4 );                                              \
1067             p_txxx = new ID3v2::UserTextIdentificationFrame( p_byte );                   \
1068             p_txxx->setDescription( txxName );                                           \
1069             p_txxx->setText( psz_meta );                                                 \
1070             free( psz_meta );                                                            \
1071             tag->addFrame( p_txxx );                                                     \
1072         }                                                                                \
1073     }
1074
1075     WRITETXXX( TrackTotal, "TRACKTOTAL" );
1076
1077 #undef WRITETXXX
1078
1079     /* Write album art */
1080     char *psz_url = input_item_GetArtworkURL( p_item );
1081     if( psz_url == NULL )
1082         return;
1083
1084     char *psz_path = vlc_uri2path( psz_url );
1085     free( psz_url );
1086     if( psz_path == NULL )
1087         return;
1088
1089     const char *psz_mime = vlc_mime_Ext2Mime( psz_path );
1090
1091     FILE *p_file = vlc_fopen( psz_path, "rb" );
1092     if( p_file == NULL )
1093     {
1094         free( psz_path );
1095         return;
1096     }
1097
1098     struct stat st;
1099     if( vlc_stat( psz_path, &st ) == -1 )
1100     {
1101         free( psz_path );
1102         fclose( p_file );
1103         return;
1104     }
1105     off_t file_size = st.st_size;
1106
1107     free( psz_path );
1108
1109     /* Limit picture size to 10MiB */
1110     if( file_size > 10485760 )
1111     {
1112       fclose( p_file );
1113       return;
1114     }
1115
1116     char *p_buffer = new (std::nothrow) char[file_size];
1117     if( p_buffer == NULL )
1118     {
1119         fclose( p_file );
1120         return;
1121     }
1122
1123     if( fread( p_buffer, 1, file_size, p_file ) != (unsigned)file_size )
1124     {
1125         fclose( p_file );
1126         delete[] p_buffer;
1127         return;
1128     }
1129     fclose( p_file );
1130
1131     ByteVector data( p_buffer, file_size );
1132     delete[] p_buffer;
1133
1134     ID3v2::FrameList frames = tag->frameList( "APIC" );
1135     ID3v2::AttachedPictureFrame *frame = NULL;
1136     if( frames.isEmpty() )
1137     {
1138         frame = new TagLib::ID3v2::AttachedPictureFrame;
1139         tag->addFrame( frame );
1140     }
1141     else
1142     {
1143         frame = static_cast<ID3v2::AttachedPictureFrame *>( frames.back() );
1144     }
1145
1146     frame->setPicture( data );
1147     frame->setMimeType( psz_mime );
1148 }
1149
1150
1151 /**
1152  * Write the meta information to XiphComments
1153  * @param tag: the Xiph Comment
1154  * @param p_input: the input item
1155  */
1156 static void WriteMetaToXiph( Ogg::XiphComment* tag, input_item_t* p_item )
1157 {
1158     char* psz_meta;
1159 #define WRITE( metaName, keyName )                      \
1160     psz_meta = input_item_Get##metaName( p_item );      \
1161     if( psz_meta )                                      \
1162     {                                                   \
1163         String key( keyName, String::UTF8 );            \
1164         String value( psz_meta, String::UTF8 );         \
1165         tag->addField( key, value, true );              \
1166     }                                                   \
1167     free( psz_meta );
1168
1169     WRITE( TrackNum, "TRACKNUMBER" );
1170     WRITE( TrackTotal, "TRACKTOTAL" );
1171     WRITE( Copyright, "COPYRIGHT" );
1172     WRITE( Publisher, "ORGANIZATION" );
1173     WRITE( Date, "DATE" );
1174     WRITE( EncodedBy, "ENCODER" );
1175     WRITE( Rating, "RATING" );
1176     WRITE( Language, "LANGUAGE" );
1177     WRITE( TrackID, "MUSICBRAINZ_TRACKID" );
1178 #undef WRITE
1179 }
1180
1181
1182 /**
1183  * Set the tags to the file using TagLib
1184  * @param p_this: the demux object
1185  * @return VLC_SUCCESS if the operation success
1186  */
1187
1188 static int WriteMeta( vlc_object_t *p_this )
1189 {
1190     vlc_mutex_locker locker (&taglib_lock);
1191     meta_export_t *p_export = (meta_export_t *)p_this;
1192     input_item_t *p_item = p_export->p_item;
1193     FileRef f;
1194
1195     if( !p_item )
1196     {
1197         msg_Err( p_this, "Can't save meta data of an empty input" );
1198         return VLC_EGENERIC;
1199     }
1200
1201 #if defined(_WIN32)
1202     wchar_t *wpath = ToWide( p_export->psz_file );
1203     if( wpath == NULL )
1204         return VLC_EGENERIC;
1205     f = FileRef( wpath, false );
1206     free( wpath );
1207 #else
1208     f = FileRef( p_export->psz_file, false );
1209 #endif
1210
1211     if( f.isNull() || !f.tag() || f.file()->readOnly() )
1212     {
1213         msg_Err( p_this, "File %s can't be opened for tag writing",
1214                  p_export->psz_file );
1215         return VLC_EGENERIC;
1216     }
1217
1218     msg_Dbg( p_this, "Writing metadata for %s", p_export->psz_file );
1219
1220     Tag *p_tag = f.tag();
1221
1222     char *psz_meta;
1223
1224 #define SET( a, b )                                             \
1225     psz_meta = input_item_Get ## a( p_item );                   \
1226     if( psz_meta )                                              \
1227     {                                                           \
1228         String tmp( psz_meta, String::UTF8 );                   \
1229         p_tag->set##b( tmp );                                   \
1230     }                                                           \
1231     free( psz_meta );
1232
1233     // Saving all common fields
1234     // If the title is empty, use the name
1235     SET( TitleFbName, Title );
1236     SET( Artist, Artist );
1237     SET( Album, Album );
1238     SET( Description, Comment );
1239     SET( Genre, Genre );
1240
1241 #undef SET
1242
1243     psz_meta = input_item_GetDate( p_item );
1244     if( !EMPTY_STR(psz_meta) ) p_tag->setYear( atoi( psz_meta ) );
1245     else p_tag->setYear( 0 );
1246     free( psz_meta );
1247
1248     psz_meta = input_item_GetTrackNum( p_item );
1249     if( !EMPTY_STR(psz_meta) ) p_tag->setTrack( atoi( psz_meta ) );
1250     else p_tag->setTrack( 0 );
1251     free( psz_meta );
1252
1253
1254     // Try now to write special tags
1255     if( APE::File* ape = dynamic_cast<APE::File*>(f.file()) )
1256     {
1257         if( ape->APETag() )
1258             WriteMetaToAPE( ape->APETag(), p_item );
1259     }
1260     else
1261     if( FLAC::File* flac = dynamic_cast<FLAC::File*>(f.file()) )
1262     {
1263         if( flac->ID3v2Tag() )
1264             WriteMetaToId3v2( flac->ID3v2Tag(), p_item );
1265         else if( flac->xiphComment() )
1266             WriteMetaToXiph( flac->xiphComment(), p_item );
1267     }
1268     else if( MPC::File* mpc = dynamic_cast<MPC::File*>(f.file()) )
1269     {
1270         if( mpc->APETag() )
1271             WriteMetaToAPE( mpc->APETag(), p_item );
1272     }
1273     else if( MPEG::File* mpeg = dynamic_cast<MPEG::File*>(f.file()) )
1274     {
1275         if( mpeg->ID3v2Tag() )
1276             WriteMetaToId3v2( mpeg->ID3v2Tag(), p_item );
1277         else if( mpeg->APETag() )
1278             WriteMetaToAPE( mpeg->APETag(), p_item );
1279     }
1280     else if( dynamic_cast<Ogg::File*>(f.file()) )
1281     {
1282         if( Ogg::FLAC::File* ogg_flac = dynamic_cast<Ogg::FLAC::File*>(f.file()))
1283             WriteMetaToXiph( ogg_flac->tag(), p_item );
1284         else if( Ogg::Speex::File* ogg_speex = dynamic_cast<Ogg::Speex::File*>(f.file()) )
1285             WriteMetaToXiph( ogg_speex->tag(), p_item );
1286         else if( Ogg::Vorbis::File* ogg_vorbis = dynamic_cast<Ogg::Vorbis::File*>(f.file()) )
1287             WriteMetaToXiph( ogg_vorbis->tag(), p_item );
1288 #if defined(TAGLIB_OPUSFILE_H)
1289         else if( Ogg::Opus::File* ogg_opus = dynamic_cast<Ogg::Opus::File*>(f.file()) )
1290             WriteMetaToXiph( ogg_opus->tag(), p_item );
1291 #endif
1292     }
1293     else if( dynamic_cast<RIFF::File*>(f.file()) )
1294     {
1295         if( RIFF::AIFF::File* riff_aiff = dynamic_cast<RIFF::AIFF::File*>(f.file()) )
1296             WriteMetaToId3v2( riff_aiff->tag(), p_item );
1297         else if( RIFF::WAV::File* riff_wav = dynamic_cast<RIFF::WAV::File*>(f.file()) )
1298             WriteMetaToId3v2( riff_wav->tag(), p_item );
1299     }
1300     else if( TrueAudio::File* trueaudio = dynamic_cast<TrueAudio::File*>(f.file()) )
1301     {
1302         if( trueaudio->ID3v2Tag() )
1303             WriteMetaToId3v2( trueaudio->ID3v2Tag(), p_item );
1304     }
1305     else if( WavPack::File* wavpack = dynamic_cast<WavPack::File*>(f.file()) )
1306     {
1307         if( wavpack->APETag() )
1308             WriteMetaToAPE( wavpack->APETag(), p_item );
1309     }
1310
1311     // Save the meta data
1312     f.save();
1313
1314     return VLC_SUCCESS;
1315 }