git.sesse.net Git - vlc/blob - modules/meta_engine/taglib.cpp

   1 /*****************************************************************************
   2  * taglib.cpp: Taglib tag parser/writer
   3  *****************************************************************************
   4  * Copyright (C) 2003-2011 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>                /* make_path */
  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>
  43 # include <io.h>
  44 #else
  45 # include <unistd.h>
  46 #endif
  47
  48
  49 // Taglib headers
  50 #ifdef _WIN32
  51 # define TAGLIB_STATIC
  52 #endif
  53 #include <taglib.h>
  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 #include <fileref.h>
  60 #include <tag.h>
  61 #include <tbytevector.h>
  62
  63 #if TAGLIB_VERSION >= VERSION_INT(1,7,0)
  64 # define TAGLIB_HAVE_APEFILE_H
  65 # include <apefile.h>
  66 # ifdef TAGLIB_WITH_ASF                     // ASF pictures comes with v1.7.0
  67 #  define TAGLIB_HAVE_ASFPICTURE_H
  68 #  include <asffile.h>
  69 # endif
  70 #endif
  71
  72 #if TAGLIB_VERSION >= VERSION_INT(1,9,0)
  73 # include <opusfile.h>
  74 #endif
  75
  76 #include <apetag.h>
  77 #include <flacfile.h>
  78 #include <mpcfile.h>
  79 #include <mpegfile.h>
  80 #include <oggfile.h>
  81 #include <oggflacfile.h>
  82 #include "../demux/xiph_metadata.h"
  83
  84 #include <aifffile.h>
  85 #include <wavfile.h>
  86
  87 #if defined(TAGLIB_WITH_MP4)
  88 # include <mp4file.h>
  89 #endif
  90
  91 #include <speexfile.h>
  92 #include <trueaudiofile.h>
  93 #include <vorbisfile.h>
  94 #include <wavpackfile.h>
  95
  96 #include <attachedpictureframe.h>
  97 #include <textidentificationframe.h>
  98 #include <uniquefileidentifierframe.h>
  99
 100 // taglib is not thread safe
 101 static vlc_mutex_t taglib_lock = VLC_STATIC_MUTEX;
 102
 103 // Local functions
 104 static int ReadMeta    ( vlc_object_t * );
 105 static int WriteMeta   ( vlc_object_t * );
 106
 107 vlc_module_begin ()
 108     set_capability( "meta reader", 1000 )
 109     set_callbacks( ReadMeta, NULL )
 110     add_submodule ()
 111         set_capability( "meta writer", 50 )
 112         set_callbacks( WriteMeta, NULL )
 113 vlc_module_end ()
 114
 115 using namespace TagLib;
 116
 117 static void ExtractTrackNumberValues( vlc_meta_t* p_meta, const char *psz_value )
 118 {
 119     unsigned int i_trknum, i_trktot;
 120     if( sscanf( psz_value, "%u/%u", &i_trknum, &i_trktot ) == 2 )
 121     {
 122         char psz_trck[11];
 123         snprintf( psz_trck, sizeof( psz_trck ), "%u", i_trknum );
 124         vlc_meta_SetTrackNum( p_meta, psz_trck );
 125         snprintf( psz_trck, sizeof( psz_trck ), "%u", i_trktot );
 126         vlc_meta_Set( p_meta, vlc_meta_TrackTotal, psz_trck );
 127     }
 128 }
 129
 130 /**
 131  * Read meta information from APE tags
 132  * @param tag: the APE tag
 133  * @param p_demux_meta: the demuxer meta
 134  * @param p_meta: the meta
 135  */
 136 static void ReadMetaFromAPE( APE::Tag* tag, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 137 {
 138     APE::ItemListMap fields ( tag->itemListMap() );
 139     APE::ItemListMap::Iterator iter;
 140
 141     iter = fields.find("COVER ART (FRONT)");
 142     if( iter != fields.end()
 143         && !iter->second.isEmpty()
 144         && !iter->second.type() == APE::Item::Binary)
 145     {
 146         input_attachment_t *p_attachment;
 147
 148         const ByteVector picture = iter->second.binaryData();
 149         const char *p_data = picture.data();
 150         unsigned i_data = picture.size();
 151
 152         /* Null terminated filename followed by the image data */
 153         size_t desc_len = strnlen(p_data, i_data);
 154         if( desc_len < i_data && IsUTF8( p_data ) )
 155         {
 156             const char *psz_name = p_data;
 157             const char *psz_mime = vlc_mime_Ext2Mime( psz_name );
 158             p_data += desc_len + 1; /* '\0' */
 159             i_data -= desc_len + 1;
 160
 161             msg_Dbg( p_demux_meta, "Found embedded art: %s (%s) is %u bytes",
 162                      psz_name, psz_mime, i_data );
 163
 164             p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 165                                     psz_name, p_data, i_data );
 166             if( p_attachment )
 167             {
 168                 TAB_APPEND_CAST( (input_attachment_t**),
 169                                  p_demux_meta->i_attachments, p_demux_meta->attachments,
 170                                  p_attachment );
 171
 172                 char *psz_url;
 173                 if( asprintf( &psz_url, "attachment://%s", p_attachment->psz_name ) != -1 )
 174                 {
 175                     vlc_meta_SetArtURL( p_meta, psz_url );
 176                     free( psz_url );
 177                 }
 178             }
 179         }
 180
 181         fields.erase(iter);
 182     }
 183
 184 #define SET( keyName, metaName ) \
 185     iter = fields.find(keyName); \
 186     if( iter != fields.end() && !iter->second.isEmpty() ) { \
 187         vlc_meta_Set##metaName( p_meta, iter->second.toString().toCString( true ) ); \
 188         fields.erase(iter); \
 189     }
 190
 191 #define SET_EXTRA( keyName, metaName ) \
 192     iter = fields.find( keyName ); \
 193     if( iter != fields.end() && !iter->second.isEmpty() ) { \
 194         vlc_meta_AddExtra( p_meta, metaName, iter->second.toString().toCString( true ) ); \
 195         fields.erase(iter); \
 196     }
 197
 198     SET( "ALBUM", Album );
 199     SET( "ARTIST", Artist );
 200     SET( "COMMENT", Description );
 201     SET( "GENRE", Genre );
 202     SET( "TITLE", Title );
 203     SET( "COPYRIGHT", Copyright );
 204     SET( "LANGUAGE", Language );
 205     SET( "PUBLISHER", Publisher );
 206     SET( "MUSICBRAINZ_TRACKID", TrackID );
 207
 208     SET_EXTRA( "MUSICBRAINZ_ALBUMID", VLC_META_EXTRA_MB_ALBUMID );
 209
 210 #undef SET
 211 #undef SET_EXTRA
 212
 213     /* */
 214     iter = fields.find( "TRACK" );
 215     if( iter != fields.end() && !iter->second.isEmpty() )
 216     {
 217         ExtractTrackNumberValues( p_meta, iter->second.toString().toCString( true ) );
 218         fields.erase( iter );
 219     }
 220
 221     /* Remainings */
 222     for( iter = fields.begin(); iter != fields.end(); ++iter )
 223     {
 224         if( iter->second.isEmpty() )
 225             continue;
 226
 227         if( iter->second.type() != APE::Item::Text )
 228             continue;
 229
 230         vlc_meta_AddExtra( p_meta,
 231                            iter->first.toCString( true ),
 232                            iter->second.toString().toCString( true ) );
 233     }
 234 }
 235
 236
 237 /**
 238  * Read meta information from ASF tags
 239  * @param tag: the ASF tag
 240  * @param p_demux_meta: the demuxer meta
 241  * @param p_meta: the meta
 242  */
 243 static void ReadMetaFromASF( ASF::Tag* tag, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 244 {
 245
 246     ASF::AttributeList list;
 247 #define SET( keyName, metaName )                                                     \
 248     if( tag->attributeListMap().contains(keyName) )                                  \
 249     {                                                                                \
 250         list = tag->attributeListMap()[keyName];                                     \
 251         vlc_meta_Set##metaName( p_meta, list.front().toString().toCString( true ) ); \
 252     }
 253
 254 #define SET_EXTRA( keyName, metaName )                                                     \
 255     if( tag->attributeListMap().contains(keyName) )                                  \
 256     {                                                                                \
 257         list = tag->attributeListMap()[keyName];                                     \
 258         vlc_meta_AddExtra( p_meta, metaName, list.front().toString().toCString( true ) ); \
 259     }
 260
 261     SET("MusicBrainz/Track Id", TrackID );
 262     SET_EXTRA("MusicBrainz/Album Id", VLC_META_EXTRA_MB_ALBUMID );
 263
 264 #undef SET
 265 #undef SET_EXTRA
 266
 267 #ifdef TAGLIB_HAVE_ASFPICTURE_H
 268     // List the pictures
 269     list = tag->attributeListMap()["WM/Picture"];
 270     ASF::AttributeList::Iterator iter;
 271     for( iter = list.begin(); iter != list.end(); iter++ )
 272     {
 273         const ASF::Picture asfPicture = (*iter).toPicture();
 274         const ByteVector picture = asfPicture.picture();
 275         const char *psz_mime = asfPicture.mimeType().toCString();
 276         const char *p_data = picture.data();
 277         const unsigned i_data = picture.size();
 278         char *psz_name;
 279         input_attachment_t *p_attachment;
 280
 281         if( asfPicture.description().size() > 0 )
 282             psz_name = strdup( asfPicture.description().toCString( true ) );
 283         else
 284         {
 285             if( asprintf( &psz_name, "%i", asfPicture.type() ) == -1 )
 286                 continue;
 287         }
 288
 289         msg_Dbg( p_demux_meta, "Found embedded art: %s (%s) is %u bytes",
 290                  psz_name, psz_mime, i_data );
 291
 292         p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 293                                 psz_name, p_data, i_data );
 294         if( p_attachment )
 295             TAB_APPEND_CAST( (input_attachment_t**),
 296                              p_demux_meta->i_attachments, p_demux_meta->attachments,
 297                              p_attachment );
 298         char *psz_url;
 299         if( asprintf( &psz_url, "attachment://%s", psz_name ) != -1 )
 300         {
 301             vlc_meta_SetArtURL( p_meta, psz_url );
 302             free( psz_url );
 303         }
 304         free( psz_name );
 305     }
 306 #endif
 307 }
 308
 309
 310 /**
 311  * Read meta information from id3v2 tags
 312  * @param tag: the id3v2 tag
 313  * @param p_demux_meta: the demuxer meta
 314  * @param p_meta: the meta
 315  */
 316 static void ReadMetaFromId3v2( ID3v2::Tag* tag, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 317 {
 318     // Get the unique file identifier
 319     ID3v2::FrameList list = tag->frameListMap()["UFID"];
 320     ID3v2::FrameList::Iterator iter;
 321     for( iter = list.begin(); iter != list.end(); iter++ )
 322     {
 323         ID3v2::UniqueFileIdentifierFrame* p_ufid =
 324                 dynamic_cast<ID3v2::UniqueFileIdentifierFrame*>(*iter);
 325         if( !p_ufid )
 326             continue;
 327         const char *owner = p_ufid->owner().toCString();
 328         if (!strcmp( owner, "http://musicbrainz.org" ))
 329         {
 330             /* ID3v2 UFID contains up to 64 bytes binary data
 331              * but in our case it will be a '\0'
 332              * terminated string */
 333             char psz_ufid[64];
 334             int max_size = __MIN( p_ufid->identifier().size(), 63);
 335             strncpy( psz_ufid, p_ufid->identifier().data(), max_size );
 336             psz_ufid[max_size] = '\0';
 337             vlc_meta_SetTrackID( p_meta, psz_ufid );
 338         }
 339     }
 340
 341     // Get the use text
 342     list = tag->frameListMap()["TXXX"];
 343     for( iter = list.begin(); iter != list.end(); iter++ )
 344     {
 345         ID3v2::UserTextIdentificationFrame* p_txxx =
 346                 dynamic_cast<ID3v2::UserTextIdentificationFrame*>(*iter);
 347         if( !p_txxx )
 348             continue;
 349         if( !strcmp( p_txxx->description().toCString( true ), "TRACKTOTAL" ) )
 350         {
 351             vlc_meta_Set( p_meta, vlc_meta_TrackTotal, p_txxx->fieldList().back().toCString( true ) );
 352             continue;
 353         }
 354         if( !strcmp( p_txxx->description().toCString( true ), "MusicBrainz Album Id" ) )
 355         {
 356             vlc_meta_AddExtra( p_meta, VLC_META_EXTRA_MB_ALBUMID, p_txxx->fieldList().back().toCString( true ) );
 357             continue;
 358         }
 359         vlc_meta_AddExtra( p_meta, p_txxx->description().toCString( true ),
 360                            p_txxx->fieldList().back().toCString( true ) );
 361     }
 362
 363     // Get some more information
 364 #define SET( tagName, metaName )                                               \
 365     list = tag->frameListMap()[tagName];                                       \
 366     if( !list.isEmpty() )                                                      \
 367         vlc_meta_Set##metaName( p_meta,                                        \
 368                                 (*list.begin())->toString().toCString( true ) );
 369
 370     SET( "TCOP", Copyright );
 371     SET( "TENC", EncodedBy );
 372     SET( "TLAN", Language );
 373     SET( "TPUB", Publisher );
 374
 375 #undef SET
 376
 377     /* */
 378     list = tag->frameListMap()["TRCK"];
 379     if( !list.isEmpty() )
 380     {
 381         ExtractTrackNumberValues( p_meta, (*list.begin())->toString().toCString( true ) );
 382     }
 383
 384     /* Preferred type of image
 385      * The 21 types are defined in id3v2 standard:
 386      * http://www.id3.org/id3v2.4.0-frames */
 387     static const int pi_cover_score[] = {
 388         0,  /* Other */
 389         5,  /* 32x32 PNG image that should be used as the file icon */
 390         4,  /* File icon of a different size or format. */
 391         20, /* Front cover image of the album. */
 392         19, /* Back cover image of the album. */
 393         13, /* Inside leaflet page of the album. */
 394         18, /* Image from the album itself. */
 395         17, /* Picture of the lead artist or soloist. */
 396         16, /* Picture of the artist or performer. */
 397         14, /* Picture of the conductor. */
 398         15, /* Picture of the band or orchestra. */
 399         9,  /* Picture of the composer. */
 400         8,  /* Picture of the lyricist or text writer. */
 401         7,  /* Picture of the recording location or studio. */
 402         10, /* Picture of the artists during recording. */
 403         11, /* Picture of the artists during performance. */
 404         6,  /* Picture from a movie or video related to the track. */
 405         1,  /* Picture of a large, coloured fish. */
 406         12, /* Illustration related to the track. */
 407         3,  /* Logo of the band or performer. */
 408         2   /* Logo of the publisher (record company). */
 409     };
 410     #define PI_COVER_SCORE_SIZE (sizeof (pi_cover_score) / sizeof (pi_cover_score[0]))
 411     int i_score = -1;
 412
 413     // Try now to get embedded art
 414     list = tag->frameListMap()[ "APIC" ];
 415     if( list.isEmpty() )
 416         return;
 417
 418     for( iter = list.begin(); iter != list.end(); iter++ )
 419     {
 420         ID3v2::AttachedPictureFrame* p_apic =
 421             dynamic_cast<ID3v2::AttachedPictureFrame*>(*iter);
 422         if( !p_apic )
 423             continue;
 424         input_attachment_t *p_attachment;
 425
 426         const char *psz_mime;
 427         char *psz_name, *psz_description;
 428
 429         // Get the mime and description of the image.
 430         // If the description is empty, take the type as a description
 431         psz_mime = p_apic->mimeType().toCString( true );
 432         if( p_apic->description().size() > 0 )
 433             psz_description = strdup( p_apic->description().toCString( true ) );
 434         else
 435         {
 436             if( asprintf( &psz_description, "%i", p_apic->type() ) == -1 )
 437                 psz_description = NULL;
 438         }
 439
 440         if( !psz_description )
 441             continue;
 442         psz_name = psz_description;
 443
 444         /* some old iTunes version not only sets incorrectly the mime type
 445          * or the description of the image,
 446          * but also embeds incorrectly the image.
 447          * Recent versions seem to behave correctly */
 448         if( !strncmp( psz_mime, "PNG", 3 ) ||
 449             !strncmp( psz_name, "\xC2\x89PNG", 5 ) )
 450         {
 451             msg_Warn( p_demux_meta, "Invalid picture embedded by broken iTunes version" );
 452             free( psz_description );
 453             continue;
 454         }
 455
 456         const ByteVector picture = p_apic->picture();
 457         const char *p_data = picture.data();
 458         const unsigned i_data = picture.size();
 459
 460         msg_Dbg( p_demux_meta, "Found embedded art: %s (%s) is %u bytes",
 461                  psz_name, psz_mime, i_data );
 462
 463         p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 464                                 psz_description, p_data, i_data );
 465         if( !p_attachment )
 466         {
 467             free( psz_description );
 468             continue;
 469         }
 470         TAB_APPEND_CAST( (input_attachment_t**),
 471                          p_demux_meta->i_attachments, p_demux_meta->attachments,
 472                          p_attachment );
 473         free( psz_description );
 474
 475         unsigned i_pic_type = p_apic->type();
 476         if( i_pic_type >= PI_COVER_SCORE_SIZE )
 477             i_pic_type = 0; // Defaults to "Other"
 478
 479         if( pi_cover_score[i_pic_type] > i_score )
 480         {
 481             i_score = pi_cover_score[i_pic_type];
 482             char *psz_url;
 483             if( asprintf( &psz_url, "attachment://%s",
 484                           p_attachment->psz_name ) == -1 )
 485                 continue;
 486             vlc_meta_SetArtURL( p_meta, psz_url );
 487             free( psz_url );
 488         }
 489     }
 490 }
 491
 492
 493 /**
 494  * Read the meta information from XiphComments
 495  * @param tag: the Xiph Comment
 496  * @param p_demux_meta: the demuxer meta
 497  * @param p_meta: the meta
 498  */
 499 static void ReadMetaFromXiph( Ogg::XiphComment* tag, demux_meta_t* p_demux_meta, vlc_meta_t* p_meta )
 500 {
 501     StringList list;
 502     bool hasTrackTotal = false;
 503 #define SET( keyName, metaName )                                               \
 504     list = tag->fieldListMap()[keyName];                                       \
 505     if( !list.isEmpty() )                                                      \
 506         vlc_meta_Set##metaName( p_meta, (*list.begin()).toCString( true ) );
 507
 508 #define SET_EXTRA( keyName, metaName ) \
 509     list = tag->fieldListMap()[keyName]; \
 510     if( !list.isEmpty() ) \
 511         vlc_meta_AddExtra( p_meta, keyName, (*list.begin()).toCString( true ) );
 512
 513     SET( "COPYRIGHT", Copyright );
 514     SET( "ORGANIZATION", Publisher );
 515     SET( "DATE", Date );
 516     SET( "ENCODER", EncodedBy );
 517     SET( "RATING", Rating );
 518     SET( "LANGUAGE", Language );
 519     SET( "MUSICBRAINZ_TRACKID", TrackID );
 520
 521     SET_EXTRA( "MUSICBRAINZ_ALBUMID", VLC_META_EXTRA_MB_ALBUMID );
 522 #undef SET
 523 #undef SET_EXTRA
 524
 525     list = tag->fieldListMap()["TRACKNUMBER"];
 526     if( !list.isEmpty() )
 527     {
 528         const char *psz_value;
 529         unsigned short u_track;
 530         unsigned short u_total;
 531         psz_value = (*list.begin()).toCString( true );
 532         if( sscanf( psz_value, "%hu/%hu", &u_track, &u_total ) == 2)
 533         {
 534             char str[6];
 535             snprintf(str, 6, "%u", u_track);
 536             vlc_meta_SetTrackNum( p_meta, str);
 537             snprintf(str, 6, "%u", u_total);
 538             vlc_meta_SetTrackTotal( p_meta, str);
 539             hasTrackTotal = true;
 540         }
 541         else
 542             vlc_meta_SetTrackNum( p_meta, psz_value);
 543     }
 544     if( !hasTrackTotal )
 545     {
 546         list = tag->fieldListMap()["TRACKTOTAL"];
 547         if( list.isEmpty() )
 548             list = tag->fieldListMap()["TOTALTRACKS"];
 549         if( !list.isEmpty() )
 550             vlc_meta_SetTrackTotal( p_meta, (*list.begin()).toCString( true ) );
 551     }
 552
 553     // Try now to get embedded art
 554     StringList mime_list = tag->fieldListMap()[ "COVERARTMIME" ];
 555     StringList art_list = tag->fieldListMap()[ "COVERART" ];
 556
 557     input_attachment_t *p_attachment;
 558
 559     if( mime_list.size() != 0 && art_list.size() != 0 )
 560     {
 561         // We get only the first covert art
 562         if( mime_list.size() > 1 || art_list.size() > 1 )
 563             msg_Warn( p_demux_meta, "Found %i embedded arts, so using only the first one",
 564                     art_list.size() );
 565
 566         const char* psz_name = "cover";
 567         const char* psz_mime = mime_list[0].toCString(true);
 568         const char* psz_description = "cover";
 569
 570         uint8_t *p_data;
 571         int i_data = vlc_b64_decode_binary( &p_data, art_list[0].toCString(true) );
 572
 573         msg_Dbg( p_demux_meta, "Found embedded art: %s (%s) is %i bytes",
 574                 psz_name, psz_mime, i_data );
 575
 576         p_attachment = vlc_input_attachment_New( psz_name, psz_mime,
 577                 psz_description, p_data, i_data );
 578         free( p_data );
 579     }
 580     else
 581     {
 582         art_list = tag->fieldListMap()[ "METADATA_BLOCK_PICTURE" ];
 583         if( art_list.size() == 0 )
 584             return;
 585
 586         uint8_t *p_data;
 587         int i_cover_score;
 588         int i_cover_idx;
 589         int i_data = vlc_b64_decode_binary( &p_data, art_list[0].toCString(true) );
 590         i_cover_score = i_cover_idx = 0;
 591         /* TODO: Use i_cover_score / i_cover_idx to select the picture. */
 592         p_attachment = ParseFlacPicture( p_data, i_data, 0,
 593             &i_cover_score, &i_cover_idx );
 594     }
 595
 596     if (p_attachment) {
 597         TAB_APPEND_CAST( (input_attachment_t**),
 598                 p_demux_meta->i_attachments, p_demux_meta->attachments,
 599                 p_attachment );
 600
 601         char *psz_url;
 602         if( asprintf( &psz_url, "attachment://%s", p_attachment->psz_name ) != -1 ) {
 603             vlc_meta_SetArtURL( p_meta, psz_url );
 604             free( psz_url );
 605         }
 606     }
 607 }
 608
 609
 610 #if defined(TAGLIB_WITH_MP4)
 611 /**
 612  * Read the meta information from mp4 specific tags
 613  * @param tag: the mp4 tag
 614  * @param p_demux_meta: the demuxer meta
 615  * @param p_meta: the meta
 616  */
 617 static void ReadMetaFromMP4( MP4::Tag* tag, demux_meta_t *p_demux_meta, vlc_meta_t* p_meta )
 618 {
 619     MP4::Item list;
 620 #define SET( keyName, metaName )                                                             \
 621     if( tag->itemListMap().contains(keyName) )                                               \
 622     {                                                                                        \
 623         list = tag->itemListMap()[keyName];                                                  \
 624         vlc_meta_Set##metaName( p_meta, list.toStringList().front().toCString( true ) );     \
 625     }
 626 #define SET_EXTRA( keyName, metaName )                                                   \
 627     if( tag->itemListMap().contains(keyName) )                                  \
 628     {                                                                                \
 629         list = tag->itemListMap()[keyName];                                     \
 630         vlc_meta_AddExtra( p_meta, metaName, list.toStringList().front().toCString( true ) ); \
 631     }
 632
 633     SET("----:com.apple.iTunes:MusicBrainz Track Id", TrackID );
 634     SET_EXTRA("----:com.apple.iTunes:MusicBrainz Album Id", VLC_META_EXTRA_MB_ALBUMID );
 635
 636 #undef SET
 637 #undef SET_EXTRA
 638
 639     if( tag->itemListMap().contains("covr") )
 640     {
 641         MP4::CoverArtList list = tag->itemListMap()["covr"].toCoverArtList();
 642         const char *psz_format = list[0].format() == MP4::CoverArt::PNG ? "image/png" : "image/jpeg";
 643
 644         msg_Dbg( p_demux_meta, "Found embedded art (%s) is %i bytes",
 645                  psz_format, list[0].data().size() );
 646
 647         input_attachment_t *p_attachment =
 648                 vlc_input_attachment_New( "cover", psz_format, "cover",
 649                                           list[0].data().data(), list[0].data().size() );
 650         TAB_APPEND_CAST( (input_attachment_t**),
 651                          p_demux_meta->i_attachments, p_demux_meta->attachments,
 652                          p_attachment );
 653         vlc_meta_SetArtURL( p_meta, "attachment://cover" );
 654     }
 655 }
 656 #endif
 657
 658
 659 /**
 660  * Get the tags from the file using TagLib
 661  * @param p_this: the demux object
 662  * @return VLC_SUCCESS if the operation success
 663  */
 664 static int ReadMeta( vlc_object_t* p_this)
 665 {
 666     vlc_mutex_locker locker (&taglib_lock);
 667     demux_meta_t*   p_demux_meta = (demux_meta_t *)p_this;
 668     demux_t*        p_demux = p_demux_meta->p_demux;
 669     vlc_meta_t*     p_meta;
 670     FileRef f;
 671
 672     p_demux_meta->p_meta = NULL;
 673     if( strcmp( p_demux->psz_access, "file" ) )
 674         return VLC_EGENERIC;
 675
 676     char *psz_path = strdup( p_demux->psz_file );
 677     if( !psz_path )
 678         return VLC_ENOMEM;
 679
 680 #if defined(_WIN32)
 681     wchar_t *wpath = ToWide( psz_path );
 682     if( wpath == NULL )
 683     {
 684         free( psz_path );
 685         return VLC_EGENERIC;
 686     }
 687     f = FileRef( wpath );
 688     free( wpath );
 689 #else
 690     f = FileRef( psz_path );
 691 #endif
 692     free( psz_path );
 693
 694     if( f.isNull() )
 695         return VLC_EGENERIC;
 696     if( !f.tag() || f.tag()->isEmpty() )
 697         return VLC_EGENERIC;
 698
 699     p_demux_meta->p_meta = p_meta = vlc_meta_New();
 700     if( !p_meta )
 701         return VLC_ENOMEM;
 702
 703
 704     // Read the tags from the file
 705     Tag* p_tag = f.tag();
 706
 707 #define SET( tag, meta )                                                       \
 708     if( !p_tag->tag().isNull() && !p_tag->tag().isEmpty() )                    \
 709         vlc_meta_Set##meta( p_meta, p_tag->tag().toCString(true) )
 710 #define SETINT( tag, meta )                                                    \
 711     if( p_tag->tag() )                                                         \
 712     {                                                                          \
 713         char psz_tmp[10];                                                      \
 714         snprintf( psz_tmp, 10, "%d", p_tag->tag() );                           \
 715         vlc_meta_Set##meta( p_meta, psz_tmp );                                 \
 716     }
 717
 718     SET( title, Title );
 719     SET( artist, Artist );
 720     SET( album, Album );
 721     SET( comment, Description );
 722     SET( genre, Genre );
 723     SETINT( year, Date );
 724     SETINT( track, TrackNum );
 725
 726 #undef SETINT
 727 #undef SET
 728
 729     TAB_INIT( p_demux_meta->i_attachments, p_demux_meta->attachments );
 730
 731     // Try now to read special tags
 732 #ifdef TAGLIB_HAVE_APEFILE_H
 733     if( APE::File* ape = dynamic_cast<APE::File*>(f.file()) )
 734     {
 735         if( ape->APETag() )
 736             ReadMetaFromAPE( ape->APETag(), p_demux_meta, p_meta );
 737     }
 738     else
 739 #endif
 740 #ifdef TAGLIB_WITH_ASF
 741     if( ASF::File* asf = dynamic_cast<ASF::File*>(f.file()) )
 742     {
 743         if( asf->tag() )
 744             ReadMetaFromASF( asf->tag(), p_demux_meta, p_meta );
 745     }
 746     else
 747 #endif
 748     if( FLAC::File* flac = dynamic_cast<FLAC::File*>(f.file()) )
 749     {
 750         if( flac->ID3v2Tag() )
 751             ReadMetaFromId3v2( flac->ID3v2Tag(), p_demux_meta, p_meta );
 752         else if( flac->xiphComment() )
 753             ReadMetaFromXiph( flac->xiphComment(), p_demux_meta, p_meta );
 754     }
 755 #if defined(TAGLIB_WITH_MP4)
 756     else if( MP4::File *mp4 = dynamic_cast<MP4::File*>(f.file()) )
 757     {
 758         if( mp4->tag() )
 759             ReadMetaFromMP4( mp4->tag(), p_demux_meta, p_meta );
 760     }
 761 #endif
 762     else if( MPC::File* mpc = dynamic_cast<MPC::File*>(f.file()) )
 763     {
 764         if( mpc->APETag() )
 765             ReadMetaFromAPE( mpc->APETag(), p_demux_meta, p_meta );
 766     }
 767     else if( MPEG::File* mpeg = dynamic_cast<MPEG::File*>(f.file()) )
 768     {
 769         if( mpeg->APETag() )
 770             ReadMetaFromAPE( mpeg->APETag(), p_demux_meta, p_meta );
 771         if( mpeg->ID3v2Tag() )
 772             ReadMetaFromId3v2( mpeg->ID3v2Tag(), p_demux_meta, p_meta );
 773     }
 774     else if( dynamic_cast<Ogg::File*>(f.file()) )
 775     {
 776         if( Ogg::FLAC::File* ogg_flac = dynamic_cast<Ogg::FLAC::File*>(f.file()))
 777             ReadMetaFromXiph( ogg_flac->tag(), p_demux_meta, p_meta );
 778         else if( Ogg::Speex::File* ogg_speex = dynamic_cast<Ogg::Speex::File*>(f.file()) )
 779             ReadMetaFromXiph( ogg_speex->tag(), p_demux_meta, p_meta );
 780         else if( Ogg::Vorbis::File* ogg_vorbis = dynamic_cast<Ogg::Vorbis::File*>(f.file()) )
 781             ReadMetaFromXiph( ogg_vorbis->tag(), p_demux_meta, p_meta );
 782 #if defined(TAGLIB_OPUSFILE_H)
 783         else if( Ogg::Opus::File* ogg_opus = dynamic_cast<Ogg::Opus::File*>(f.file()) )
 784             ReadMetaFromXiph( ogg_opus->tag(), p_demux_meta, p_meta );
 785 #endif
 786     }
 787     else if( dynamic_cast<RIFF::File*>(f.file()) )
 788     {
 789         if( RIFF::AIFF::File* riff_aiff = dynamic_cast<RIFF::AIFF::File*>(f.file()) )
 790             ReadMetaFromId3v2( riff_aiff->tag(), p_demux_meta, p_meta );
 791         else if( RIFF::WAV::File* riff_wav = dynamic_cast<RIFF::WAV::File*>(f.file()) )
 792             ReadMetaFromId3v2( riff_wav->tag(), p_demux_meta, p_meta );
 793     }
 794     else if( TrueAudio::File* trueaudio = dynamic_cast<TrueAudio::File*>(f.file()) )
 795     {
 796         if( trueaudio->ID3v2Tag() )
 797             ReadMetaFromId3v2( trueaudio->ID3v2Tag(), p_demux_meta, p_meta );
 798     }
 799     else if( WavPack::File* wavpack = dynamic_cast<WavPack::File*>(f.file()) )
 800     {
 801         if( wavpack->APETag() )
 802             ReadMetaFromAPE( wavpack->APETag(), p_demux_meta, p_meta );
 803     }
 804
 805     return VLC_SUCCESS;
 806 }
 807
 808
 809 /**
 810  * Write meta information to APE tags
 811  * @param tag: the APE tag
 812  * @param p_item: the input item
 813  */
 814 static void WriteMetaToAPE( APE::Tag* tag, input_item_t* p_item )
 815 {
 816     char* psz_meta;
 817 #define WRITE( metaName, keyName )                      \
 818     psz_meta = input_item_Get##metaName( p_item );      \
 819     if( psz_meta )                                      \
 820     {                                                   \
 821         String key( keyName, String::UTF8 );            \
 822         String value( psz_meta, String::UTF8 );         \
 823         tag->addValue( key, value, true );              \
 824     }                                                   \
 825     free( psz_meta );
 826
 827     WRITE( Copyright, "COPYRIGHT" );
 828     WRITE( Language, "LANGUAGE" );
 829     WRITE( Publisher, "PUBLISHER" );
 830     WRITE( TrackID, "MUSICBRAINZ_TRACKID" );
 831 #undef WRITE
 832 }
 833
 834
 835 /**
 836  * Write meta information to id3v2 tags
 837  * @param tag: the id3v2 tag
 838  * @param p_input: the input item
 839  */
 840 static void WriteMetaToId3v2( ID3v2::Tag* tag, input_item_t* p_item )
 841 {
 842     char* psz_meta;
 843 #define WRITE( metaName, tagName )                                            \
 844     psz_meta = input_item_Get##metaName( p_item );                            \
 845     if( psz_meta )                                                            \
 846     {                                                                         \
 847         ByteVector p_byte( tagName, 4 );                                      \
 848         tag->removeFrames( p_byte );                                         \
 849         ID3v2::TextIdentificationFrame* p_frame =                             \
 850             new ID3v2::TextIdentificationFrame( p_byte, String::UTF8 );       \
 851         p_frame->setText( psz_meta );                                         \
 852         tag->addFrame( p_frame );                                             \
 853     }                                                                         \
 854     free( psz_meta );
 855
 856     WRITE( Copyright, "TCOP" );
 857     WRITE( EncodedBy, "TENC" );
 858     WRITE( Language,  "TLAN" );
 859     WRITE( Publisher, "TPUB" );
 860
 861 #undef WRITE
 862     /* Known TXXX frames */
 863     ID3v2::FrameList list = tag->frameListMap()["TXXX"];
 864
 865 #define WRITETXXX( metaName, txxName )\
 866     psz_meta = input_item_Get##metaName( p_item );                                       \
 867     if ( psz_meta )                                                                      \
 868     {                                                                                    \
 869         ID3v2::UserTextIdentificationFrame *p_txxx;                                      \
 870         for( ID3v2::FrameList::Iterator iter = list.begin(); iter != list.end(); iter++ )\
 871         {                                                                                \
 872             p_txxx = dynamic_cast<ID3v2::UserTextIdentificationFrame*>(*iter);           \
 873             if( !p_txxx )                                                                \
 874                 continue;                                                                \
 875             if( !strcmp( p_txxx->description().toCString( true ), txxName ) )            \
 876             {                                                                            \
 877                 p_txxx->setText( psz_meta );                                             \
 878                 FREENULL( psz_meta );                                                    \
 879                 break;                                                                   \
 880             }                                                                            \
 881         }                                                                                \
 882         if( psz_meta ) /* not found in existing custom fields */                         \
 883         {                                                                                \
 884             ByteVector p_byte( "TXXX", 4 );                                              \
 885             p_txxx = new ID3v2::UserTextIdentificationFrame( p_byte );                   \
 886             p_txxx->setDescription( txxName );                                           \
 887             p_txxx->setText( psz_meta );                                                 \
 888             free( psz_meta );                                                            \
 889             tag->addFrame( p_txxx );                                                     \
 890         }                                                                                \
 891     }
 892
 893     WRITETXXX( TrackTotal, "TRACKTOTAL" );
 894
 895 #undef WRITETXXX
 896
 897     /* Write album art */
 898     char *psz_url = input_item_GetArtworkURL( p_item );
 899     if( psz_url == NULL )
 900         return;
 901
 902     char *psz_path = make_path( psz_url );
 903     free( psz_url );
 904     if( psz_path == NULL )
 905         return;
 906
 907     const char *psz_mime = vlc_mime_Ext2Mime( psz_path );
 908
 909     FILE *p_file = vlc_fopen( psz_path, "rb" );
 910     if( p_file == NULL )
 911     {
 912         free( psz_path );
 913         return;
 914     }
 915
 916     struct stat st;
 917     if( vlc_stat( psz_path, &st ) == -1 )
 918     {
 919         free( psz_path );
 920         fclose( p_file );
 921         return;
 922     }
 923     off_t file_size = st.st_size;
 924
 925     free( psz_path );
 926
 927     /* Limit picture size to 10MiB */
 928     if( file_size > 10485760 )
 929     {
 930       fclose( p_file );
 931       return;
 932     }
 933
 934     char *p_buffer = new (std::nothrow) char[file_size];
 935     if( p_buffer == NULL )
 936     {
 937         fclose( p_file );
 938         return;
 939     }
 940
 941     if( fread( p_buffer, 1, file_size, p_file ) != (unsigned)file_size )
 942     {
 943         fclose( p_file );
 944         delete[] p_buffer;
 945         return;
 946     }
 947     fclose( p_file );
 948
 949     ByteVector data( p_buffer, file_size );
 950     delete[] p_buffer;
 951
 952     ID3v2::FrameList frames = tag->frameList( "APIC" );
 953     ID3v2::AttachedPictureFrame *frame = NULL;
 954     if( frames.isEmpty() )
 955     {
 956         frame = new TagLib::ID3v2::AttachedPictureFrame;
 957         tag->addFrame( frame );
 958     }
 959     else
 960     {
 961         frame = static_cast<ID3v2::AttachedPictureFrame *>( frames.back() );
 962     }
 963
 964     frame->setPicture( data );
 965     frame->setMimeType( psz_mime );
 966 }
 967
 968
 969 /**
 970  * Write the meta information to XiphComments
 971  * @param tag: the Xiph Comment
 972  * @param p_input: the input item
 973  */
 974 static void WriteMetaToXiph( Ogg::XiphComment* tag, input_item_t* p_item )
 975 {
 976     char* psz_meta;
 977 #define WRITE( metaName, keyName )                      \
 978     psz_meta = input_item_Get##metaName( p_item );      \
 979     if( psz_meta )                                      \
 980     {                                                   \
 981         String key( keyName, String::UTF8 );            \
 982         String value( psz_meta, String::UTF8 );         \
 983         tag->addField( key, value, true );              \
 984     }                                                   \
 985     free( psz_meta );
 986
 987     WRITE( TrackNum, "TRACKNUMBER" );
 988     WRITE( TrackTotal, "TRACKTOTAL" );
 989     WRITE( Copyright, "COPYRIGHT" );
 990     WRITE( Publisher, "ORGANIZATION" );
 991     WRITE( Date, "DATE" );
 992     WRITE( EncodedBy, "ENCODER" );
 993     WRITE( Rating, "RATING" );
 994     WRITE( Language, "LANGUAGE" );
 995     WRITE( TrackID, "MUSICBRAINZ_TRACKID" );
 996 #undef WRITE
 997 }
 998
 999
1000 /**
1001  * Set the tags to the file using TagLib
1002  * @param p_this: the demux object
1003  * @return VLC_SUCCESS if the operation success
1004  */
1005
1006 static int WriteMeta( vlc_object_t *p_this )
1007 {
1008     vlc_mutex_locker locker (&taglib_lock);
1009     meta_export_t *p_export = (meta_export_t *)p_this;
1010     input_item_t *p_item = p_export->p_item;
1011     FileRef f;
1012
1013     if( !p_item )
1014     {
1015         msg_Err( p_this, "Can't save meta data of an empty input" );
1016         return VLC_EGENERIC;
1017     }
1018
1019 #if defined(_WIN32)
1020     wchar_t *wpath = ToWide( p_export->psz_file );
1021     if( wpath == NULL )
1022         return VLC_EGENERIC;
1023     f = FileRef( wpath );
1024     free( wpath );
1025 #else
1026     f = FileRef( p_export->psz_file );
1027 #endif
1028
1029     if( f.isNull() || !f.tag() || f.file()->readOnly() )
1030     {
1031         msg_Err( p_this, "File %s can't be opened for tag writing",
1032                  p_export->psz_file );
1033         return VLC_EGENERIC;
1034     }
1035
1036     msg_Dbg( p_this, "Writing metadata for %s", p_export->psz_file );
1037
1038     Tag *p_tag = f.tag();
1039
1040     char *psz_meta;
1041
1042 #define SET( a, b )                                             \
1043     psz_meta = input_item_Get ## a( p_item );                   \
1044     if( psz_meta )                                              \
1045     {                                                           \
1046         String tmp( psz_meta, String::UTF8 );                   \
1047         p_tag->set##b( tmp );                                   \
1048     }                                                           \
1049     free( psz_meta );
1050
1051     // Saving all common fields
1052     // If the title is empty, use the name
1053     SET( TitleFbName, Title );
1054     SET( Artist, Artist );
1055     SET( Album, Album );
1056     SET( Description, Comment );
1057     SET( Genre, Genre );
1058
1059 #undef SET
1060
1061     psz_meta = input_item_GetDate( p_item );
1062     if( !EMPTY_STR(psz_meta) ) p_tag->setYear( atoi( psz_meta ) );
1063     else p_tag->setYear( 0 );
1064     free( psz_meta );
1065
1066     psz_meta = input_item_GetTrackNum( p_item );
1067     if( !EMPTY_STR(psz_meta) ) p_tag->setTrack( atoi( psz_meta ) );
1068     else p_tag->setTrack( 0 );
1069     free( psz_meta );
1070
1071
1072     // Try now to write special tags
1073 #ifdef TAGLIB_HAVE_APEFILE_H
1074     if( APE::File* ape = dynamic_cast<APE::File*>(f.file()) )
1075     {
1076         if( ape->APETag() )
1077             WriteMetaToAPE( ape->APETag(), p_item );
1078     }
1079     else
1080 #endif
1081     if( FLAC::File* flac = dynamic_cast<FLAC::File*>(f.file()) )
1082     {
1083         if( flac->ID3v2Tag() )
1084             WriteMetaToId3v2( flac->ID3v2Tag(), p_item );
1085         else if( flac->xiphComment() )
1086             WriteMetaToXiph( flac->xiphComment(), p_item );
1087     }
1088     else if( MPC::File* mpc = dynamic_cast<MPC::File*>(f.file()) )
1089     {
1090         if( mpc->APETag() )
1091             WriteMetaToAPE( mpc->APETag(), p_item );
1092     }
1093     else if( MPEG::File* mpeg = dynamic_cast<MPEG::File*>(f.file()) )
1094     {
1095         if( mpeg->ID3v2Tag() )
1096             WriteMetaToId3v2( mpeg->ID3v2Tag(), p_item );
1097         else if( mpeg->APETag() )
1098             WriteMetaToAPE( mpeg->APETag(), p_item );
1099     }
1100     else if( dynamic_cast<Ogg::File*>(f.file()) )
1101     {
1102         if( Ogg::FLAC::File* ogg_flac = dynamic_cast<Ogg::FLAC::File*>(f.file()))
1103             WriteMetaToXiph( ogg_flac->tag(), p_item );
1104         else if( Ogg::Speex::File* ogg_speex = dynamic_cast<Ogg::Speex::File*>(f.file()) )
1105             WriteMetaToXiph( ogg_speex->tag(), p_item );
1106         else if( Ogg::Vorbis::File* ogg_vorbis = dynamic_cast<Ogg::Vorbis::File*>(f.file()) )
1107             WriteMetaToXiph( ogg_vorbis->tag(), p_item );
1108 #if defined(TAGLIB_OPUSFILE_H)
1109         else if( Ogg::Opus::File* ogg_opus = dynamic_cast<Ogg::Opus::File*>(f.file()) )
1110             WriteMetaToXiph( ogg_opus->tag(), p_item );
1111 #endif
1112     }
1113     else if( dynamic_cast<RIFF::File*>(f.file()) )
1114     {
1115         if( RIFF::AIFF::File* riff_aiff = dynamic_cast<RIFF::AIFF::File*>(f.file()) )
1116             WriteMetaToId3v2( riff_aiff->tag(), p_item );
1117         else if( RIFF::WAV::File* riff_wav = dynamic_cast<RIFF::WAV::File*>(f.file()) )
1118             WriteMetaToId3v2( riff_wav->tag(), p_item );
1119     }
1120     else if( TrueAudio::File* trueaudio = dynamic_cast<TrueAudio::File*>(f.file()) )
1121     {
1122         if( trueaudio->ID3v2Tag() )
1123             WriteMetaToId3v2( trueaudio->ID3v2Tag(), p_item );
1124     }
1125     else if( WavPack::File* wavpack = dynamic_cast<WavPack::File*>(f.file()) )
1126     {
1127         if( wavpack->APETag() )
1128             WriteMetaToAPE( wavpack->APETag(), p_item );
1129     }
1130
1131     // Save the meta data
1132     f.save();
1133
1134     return VLC_SUCCESS;
1135 }