bool WavPackMetadata::ReadMetadata(CFErrorRef *error)
{
// Start from scratch
CFDictionaryRemoveAllValues(mMetadata);
CFDictionaryRemoveAllValues(mChangedMetadata);
UInt8 buf [PATH_MAX];
if(!CFURLGetFileSystemRepresentation(mURL, FALSE, buf, PATH_MAX))
return false;
auto stream = new TagLib::FileStream(reinterpret_cast<const char *>(buf), true);
TagLib::WavPack::File file(stream);
if(!file.isValid()) {
if(nullptr != error) {
CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid WavPack file."), "");
CFStringRef failureReason = CFCopyLocalizedString(CFSTR("Not a WavPack file"), "");
CFStringRef recoverySuggestion = CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), "");
*error = CreateErrorForURL(AudioMetadataErrorDomain, AudioMetadataInputOutputError, description, mURL, failureReason, recoverySuggestion);
CFRelease(description), description = nullptr;
CFRelease(failureReason), failureReason = nullptr;
CFRelease(recoverySuggestion), recoverySuggestion = nullptr;
}
return false;
}
CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("WavPack"));
if(file.audioProperties()) {
auto properties = file.audioProperties();
AddAudioPropertiesToDictionary(mMetadata, properties);
if(properties->bitsPerSample())
AddIntToDictionary(mMetadata, kPropertiesBitsPerChannelKey, properties->bitsPerSample());
if(properties->sampleFrames())
AddIntToDictionary(mMetadata, kPropertiesTotalFramesKey, properties->sampleFrames());
}
if(file.ID3v1Tag())
AddID3v1TagToDictionary(mMetadata, file.ID3v1Tag());
if(file.APETag()) {
std::vector<AttachedPicture *> pictures;
AddAPETagToDictionary(mMetadata, pictures, file.APETag());
for(auto picture : pictures)
AddSavedPicture(picture);
}
return true;
}
bool SFB::Audio::TrueAudioMetadata::_ReadMetadata(CFErrorRef *error)
{
UInt8 buf [PATH_MAX];
if(!CFURLGetFileSystemRepresentation(mURL, FALSE, buf, PATH_MAX))
return false;
std::unique_ptr<TagLib::FileStream> stream(new TagLib::FileStream((const char *)buf, true));
if(!stream->isOpen()) {
if(error) {
SFB::CFString description = CFCopyLocalizedString(CFSTR("The file “%@” could not be opened for reading."), "");
SFB::CFString failureReason = CFCopyLocalizedString(CFSTR("Input/output error"), "");
SFB::CFString recoverySuggestion = CFCopyLocalizedString(CFSTR("The file may have been renamed, moved, deleted, or you may not have appropriate permissions."), "");
*error = CreateErrorForURL(Metadata::ErrorDomain, Metadata::InputOutputError, description, mURL, failureReason, recoverySuggestion);
}
return false;
}
TagLib::TrueAudio::File file(stream.get());
if(!file.isValid()) {
if(nullptr != error) {
SFB::CFString description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid True Audio file."), "");
SFB::CFString failureReason = CFCopyLocalizedString(CFSTR("Not a True Audio file"), "");
SFB::CFString recoverySuggestion = CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), "");
*error = CreateErrorForURL(Metadata::ErrorDomain, Metadata::InputOutputError, description, mURL, failureReason, recoverySuggestion);
}
return false;
}
CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("True Audio"));
if(file.audioProperties()) {
auto properties = file.audioProperties();
AddAudioPropertiesToDictionary(mMetadata, properties);
if(properties->bitsPerSample())
AddIntToDictionary(mMetadata, kBitsPerChannelKey, properties->bitsPerSample());
if(properties->sampleFrames())
AddIntToDictionary(mMetadata, kTotalFramesKey, (int)properties->sampleFrames());
}
// Add all tags that are present
if(file.ID3v1Tag())
AddID3v1TagToDictionary(mMetadata, file.ID3v1Tag());
if(file.ID3v2Tag())
AddID3v2TagToDictionary(mMetadata, mPictures, file.ID3v2Tag());
return true;
}
bool SFB::Audio::AddAudioPropertiesToDictionary(CFMutableDictionaryRef dictionary, const TagLib::AudioProperties *properties)
{
if(nullptr == dictionary || nullptr == properties)
return false;
if(properties->length())
AddIntToDictionary(dictionary, Metadata::kDurationKey, properties->length());
if(properties->channels())
AddIntToDictionary(dictionary, Metadata::kChannelsPerFrameKey, properties->channels());
if(properties->sampleRate())
AddIntToDictionary(dictionary, Metadata::kSampleRateKey, properties->sampleRate());
if(properties->bitrate())
AddIntToDictionary(dictionary, Metadata::kBitrateKey, properties->bitrate());
return true;
}
SFB::Audio::AttachedPicture::AttachedPicture(CFDataRef data, AttachedPicture::Type type, CFStringRef description)
: mMetadata(0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks), mChangedMetadata(0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks), mState(ChangeState::Saved)
{
if(data)
CFDictionarySetValue(mMetadata, kDataKey, data);
AddIntToDictionary(mMetadata, kTypeKey, (int)type);
if(description)
CFDictionarySetValue(mMetadata, kDescriptionKey, description);
}
SFB::Audio::AttachedPicture::AttachedPicture(CFDataRef data, AttachedPicture::Type type, CFStringRef description)
: mState(ChangeState::Saved)
{
mMetadata = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
mChangedMetadata = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
if(data)
CFDictionarySetValue(mMetadata, kDataKey, data);
AddIntToDictionary(mMetadata, kTypeKey, (int)type);
if(description)
CFDictionarySetValue(mMetadata, kDescriptionKey, description);
}
bool SFB::Audio::AddTagToDictionary(CFMutableDictionaryRef dictionary, const TagLib::Tag *tag)
{
if(nullptr == dictionary || nullptr == tag)
return false;
TagLib::AddStringToCFDictionary(dictionary, Metadata::kTitleKey, tag->title());
TagLib::AddStringToCFDictionary(dictionary, Metadata::kAlbumTitleKey, tag->album());
TagLib::AddStringToCFDictionary(dictionary, Metadata::kArtistKey, tag->artist());
TagLib::AddStringToCFDictionary(dictionary, Metadata::kGenreKey, tag->genre());
if(tag->year())
AddIntToDictionaryAsString(dictionary, Metadata::kReleaseDateKey, (int)tag->year());
if(tag->track())
AddIntToDictionary(dictionary, Metadata::kTrackNumberKey, (int)tag->track());
TagLib::AddStringToCFDictionary(dictionary, Metadata::kCommentKey, tag->comment());
return true;
}
bool TrueAudioMetadata::ReadMetadata(CFErrorRef *error)
{
// Start from scratch
CFDictionaryRemoveAllValues(mMetadata);
CFDictionaryRemoveAllValues(mChangedMetadata);
UInt8 buf [PATH_MAX];
if(!CFURLGetFileSystemRepresentation(mURL, FALSE, buf, PATH_MAX))
return false;
// TODO: Use unique_ptr once the switch to C++11 STL is made
std::auto_ptr<TagLib::FileStream> stream(new TagLib::FileStream(reinterpret_cast<const char *>(buf), true));
if(!stream->isOpen()) {
if(error) {
CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” could not be opened for reading."), "");
CFStringRef failureReason = CFCopyLocalizedString(CFSTR("Input/output error"), "");
CFStringRef recoverySuggestion = CFCopyLocalizedString(CFSTR("The file may have been renamed, moved, deleted, or you may not have appropriate permissions."), "");
*error = CreateErrorForURL(AudioMetadataErrorDomain, AudioMetadataInputOutputError, description, mURL, failureReason, recoverySuggestion);
CFRelease(description), description = nullptr;
CFRelease(failureReason), failureReason = nullptr;
CFRelease(recoverySuggestion), recoverySuggestion = nullptr;
}
return false;
}
TagLib::TrueAudio::File file(stream.get());
if(!file.isValid()) {
if(nullptr != error) {
CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid True Audio file."), "");
CFStringRef failureReason = CFCopyLocalizedString(CFSTR("Not a True Audio file"), "");
CFStringRef recoverySuggestion = CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), "");
*error = CreateErrorForURL(AudioMetadataErrorDomain, AudioMetadataInputOutputError, description, mURL, failureReason, recoverySuggestion);
CFRelease(description), description = nullptr;
CFRelease(failureReason), failureReason = nullptr;
CFRelease(recoverySuggestion), recoverySuggestion = nullptr;
}
return false;
}
CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("True Audio"));
if(file.audioProperties()) {
auto properties = file.audioProperties();
AddAudioPropertiesToDictionary(mMetadata, properties);
if(properties->bitsPerSample())
AddIntToDictionary(mMetadata, kPropertiesBitsPerChannelKey, properties->bitsPerSample());
if(properties->sampleFrames())
AddIntToDictionary(mMetadata, kPropertiesTotalFramesKey, properties->sampleFrames());
}
// Add all tags that are present
if(file.ID3v1Tag())
AddID3v1TagToDictionary(mMetadata, file.ID3v1Tag());
if(file.ID3v2Tag()) {
std::vector<AttachedPicture *> pictures;
AddID3v2TagToDictionary(mMetadata, pictures, file.ID3v2Tag());
for(auto picture : pictures)
AddSavedPicture(picture);
}
return true;
}
bool SFB::Audio::MP3Metadata::_ReadMetadata(CFErrorRef *error)
{
UInt8 buf [PATH_MAX];
if(!CFURLGetFileSystemRepresentation(mURL, false, buf, PATH_MAX))
return false;
std::unique_ptr<TagLib::FileStream> stream(new TagLib::FileStream((const char *)buf, true));
if(!stream->isOpen()) {
if(error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("The file “%@” could not be opened for reading."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Input/output error"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("The file may have been renamed, moved, deleted, or you may not have appropriate permissions."), ""));
*error = CreateErrorForURL(Metadata::ErrorDomain, Metadata::InputOutputError, description, mURL, failureReason, recoverySuggestion);
}
return false;
}
TagLib::MPEG::File file(stream.get(), TagLib::ID3v2::FrameFactory::instance());
if(!file.isValid()) {
if(nullptr != error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("The file “%@” is not a valid MPEG file."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Not an MPEG file"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
*error = CreateErrorForURL(Metadata::ErrorDomain, Metadata::InputOutputError, description, mURL, failureReason, recoverySuggestion);
}
return false;
}
CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("MP3"));
if(file.audioProperties()) {
auto properties = file.audioProperties();
AddAudioPropertiesToDictionary(mMetadata, properties);
// TODO: Is this too much information?
#if 0
switch(properties->version()) {
case TagLib::MPEG::Header::Version1:
switch(properties->layer()) {
case 1: CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("MPEG-1 Layer I")); break;
case 2: CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("MPEG-1 Layer II")); break;
case 3: CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("MPEG-1 Layer III")); break;
}
break;
case TagLib::MPEG::Header::Version2:
switch(properties->layer()) {
case 1: CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("MPEG-2 Layer I")); break;
case 2: CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("MPEG-2 Layer II")); break;
case 3: CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("MPEG-2 Layer III")); break;
}
break;
case TagLib::MPEG::Header::Version2_5:
switch(properties->layer()) {
case 1: CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("MPEG-2.5 Layer I")); break;
case 2: CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("MPEG-2.5 Layer II")); break;
case 3: CFDictionarySetValue(mMetadata, kFormatNameKey, CFSTR("MPEG-2.5 Layer III")); break;
}
break;
}
#endif
if(properties->xingHeader() && properties->xingHeader()->totalFrames())
AddIntToDictionary(mMetadata, kTotalFramesKey, (int)properties->xingHeader()->totalFrames());
}
if(file.APETag())
AddAPETagToDictionary(mMetadata, mPictures, file.APETag());
if(file.ID3v1Tag())
AddID3v1TagToDictionary(mMetadata, file.ID3v1Tag());
if(file.ID3v2Tag())
AddID3v2TagToDictionary(mMetadata, mPictures, file.ID3v2Tag());
return true;
}
bool FLACMetadata::ReadMetadata(CFErrorRef *error)
{
// Start from scratch
CFDictionaryRemoveAllValues(mMetadata);
CFDictionaryRemoveAllValues(mChangedMetadata);
UInt8 buf [PATH_MAX];
if(!CFURLGetFileSystemRepresentation(mURL, false, buf, PATH_MAX))
return false;
auto stream = new TagLib::FileStream(reinterpret_cast<const char *>(buf), true);
TagLib::FLAC::File file(stream, TagLib::ID3v2::FrameFactory::instance());
if(!file.isValid()) {
if(nullptr != error) {
CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid FLAC file."), "");
CFStringRef failureReason = CFCopyLocalizedString(CFSTR("Not a FLAC file"), "");
CFStringRef recoverySuggestion = CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), "");
*error = CreateErrorForURL(AudioMetadataErrorDomain, AudioMetadataInputOutputError, description, mURL, failureReason, recoverySuggestion);
CFRelease(description), description = nullptr;
CFRelease(failureReason), failureReason = nullptr;
CFRelease(recoverySuggestion), recoverySuggestion = nullptr;
}
return false;
}
CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("FLAC"));
if(file.audioProperties()) {
auto properties = file.audioProperties();
AddAudioPropertiesToDictionary(mMetadata, properties);
if(properties->sampleWidth())
AddIntToDictionary(mMetadata, kPropertiesBitsPerChannelKey, properties->sampleWidth());
if(properties->sampleFrames())
AddLongLongToDictionary(mMetadata, kPropertiesTotalFramesKey, properties->sampleFrames());
}
// Add all tags that are present
if(file.ID3v1Tag())
AddID3v1TagToDictionary(mMetadata, file.ID3v1Tag());
if(file.ID3v2Tag()) {
std::vector<AttachedPicture *> pictures;
AddID3v2TagToDictionary(mMetadata, pictures, file.ID3v2Tag());
for(auto picture : pictures)
AddSavedPicture(picture);
}
if(file.xiphComment()) {
std::vector<AttachedPicture *> pictures;
AddXiphCommentToDictionary(mMetadata, pictures, file.xiphComment());
for(auto picture : pictures)
AddSavedPicture(picture);
}
// Add album art
for(auto iter : file.pictureList()) {
CFDataRef data = CFDataCreate(kCFAllocatorDefault, reinterpret_cast<const UInt8 *>(iter->data().data()), iter->data().size());
CFStringRef description = nullptr;
if(!iter->description().isNull())
description = CFStringCreateWithCString(kCFAllocatorDefault, iter->description().toCString(true), kCFStringEncodingUTF8);
AttachedPicture *picture = new AttachedPicture(data, static_cast<AttachedPicture::Type>(iter->type()), description);
AddSavedPicture(picture);
if(data)
CFRelease(data), data = nullptr;
if(description)
CFRelease(description), description = nullptr;
}
return true;
}
bool SFB::Audio::AddID3v2TagToDictionary(CFMutableDictionaryRef dictionary, std::vector<std::shared_ptr<AttachedPicture>>& attachedPictures, const TagLib::ID3v2::Tag *tag)
{
if(nullptr == dictionary || nullptr == tag)
return false;
// Add the basic tags not specific to ID3v2
AddTagToDictionary(dictionary, tag);
// Release date
auto frameList = tag->frameListMap()["TDRC"];
if(!frameList.isEmpty()) {
/*
The timestamp fields are based on a subset of ISO 8601. When being as
precise as possible the format of a time string is
yyyy-MM-ddTHH:mm:ss (year, "-", month, "-", day, "T", hour (out of
24), ":", minutes, ":", seconds), but the precision may be reduced by
removing as many time indicators as wanted. Hence valid timestamps
are
yyyy, yyyy-MM, yyyy-MM-dd, yyyy-MM-ddTHH, yyyy-MM-ddTHH:mm and
yyyy-MM-ddTHH:mm:ss. All time stamps are UTC. For durations, use
the slash character as described in 8601, and for multiple non-
contiguous dates, use multiple strings, if allowed by the frame
definition.
*/
TagLib::AddStringToCFDictionary(dictionary, Metadata::kReleaseDateKey, frameList.front()->toString());
}
// Extract composer if present
frameList = tag->frameListMap()["TCOM"];
if(!frameList.isEmpty())
TagLib::AddStringToCFDictionary(dictionary, Metadata::kComposerKey, frameList.front()->toString());
// Extract album artist
frameList = tag->frameListMap()["TPE2"];
if(!frameList.isEmpty())
TagLib::AddStringToCFDictionary(dictionary, Metadata::kAlbumArtistKey, frameList.front()->toString());
// BPM
frameList = tag->frameListMap()["TBPM"];
if(!frameList.isEmpty()) {
bool ok = false;
int BPM = frameList.front()->toString().toInt(&ok);
if(ok)
AddIntToDictionary(dictionary, Metadata::kBPMKey, BPM);
}
// Rating
TagLib::ID3v2::PopularimeterFrame *popularimeter = nullptr;
frameList = tag->frameListMap()["POPM"];
if(!frameList.isEmpty() && nullptr != (popularimeter = dynamic_cast<TagLib::ID3v2::PopularimeterFrame *>(frameList.front())))
AddIntToDictionary(dictionary, Metadata::kRatingKey, popularimeter->rating());
// Extract total tracks if present
frameList = tag->frameListMap()["TRCK"];
if(!frameList.isEmpty()) {
// Split the tracks at '/'
TagLib::String s = frameList.front()->toString();
bool ok;
size_t pos = s.find("/", 0);
if(TagLib::String::npos() != pos) {
int trackNum = s.substr(0, pos).toInt(&ok);
if(ok)
AddIntToDictionary(dictionary, Metadata::kTrackNumberKey, trackNum);
int trackTotal = s.substr(pos + 1).toInt(&ok);
if(ok)
AddIntToDictionary(dictionary, Metadata::kTrackTotalKey, trackTotal);
}
else if(s.length()) {
int trackNum = s.toInt(&ok);
if(ok)
AddIntToDictionary(dictionary, Metadata::kTrackNumberKey, trackNum);
}
}
// Extract disc number and total discs
frameList = tag->frameListMap()["TPOS"];
if(!frameList.isEmpty()) {
// Split the tracks at '/'
TagLib::String s = frameList.front()->toString();
bool ok;
size_t pos = s.find("/", 0);
if(TagLib::String::npos() != pos) {
int discNum = s.substr(0, pos).toInt(&ok);
if(ok)
AddIntToDictionary(dictionary, Metadata::kDiscNumberKey, discNum);
int discTotal = s.substr(pos + 1).toInt(&ok);
if(ok)
AddIntToDictionary(dictionary, Metadata::kDiscTotalKey, discTotal);
}
else if(s.length()) {
int discNum = s.toInt(&ok);
if(ok)
AddIntToDictionary(dictionary, Metadata::kDiscNumberKey, discNum);
}
}
// Lyrics
frameList = tag->frameListMap()["USLT"];
if(!frameList.isEmpty())
TagLib::AddStringToCFDictionary(dictionary, Metadata::kLyricsKey, frameList.front()->toString());
// Extract compilation if present (iTunes TCMP tag)
frameList = tag->frameListMap()["TCMP"];
if(!frameList.isEmpty())
// It seems that the presence of this frame indicates a compilation
CFDictionarySetValue(dictionary, Metadata::kCompilationKey, kCFBooleanTrue);
frameList = tag->frameListMap()["TSRC"];
if(!frameList.isEmpty())
TagLib::AddStringToCFDictionary(dictionary, Metadata::kISRCKey, frameList.front()->toString());
// MusicBrainz
auto musicBrainzReleaseIDFrame = TagLib::ID3v2::UserTextIdentificationFrame::find(const_cast<TagLib::ID3v2::Tag *>(tag), "MusicBrainz Album Id");
if(musicBrainzReleaseIDFrame)
TagLib::AddStringToCFDictionary(dictionary, Metadata::kMusicBrainzReleaseIDKey, musicBrainzReleaseIDFrame->fieldList().back());
auto musicBrainzRecordingIDFrame = TagLib::ID3v2::UserTextIdentificationFrame::find(const_cast<TagLib::ID3v2::Tag *>(tag), "MusicBrainz Track Id");
if(musicBrainzRecordingIDFrame)
TagLib::AddStringToCFDictionary(dictionary, Metadata::kMusicBrainzRecordingIDKey, musicBrainzRecordingIDFrame->fieldList().back());
// Sorting and grouping
frameList = tag->frameListMap()["TSOT"];
if(!frameList.isEmpty())
TagLib::AddStringToCFDictionary(dictionary, Metadata::kTitleSortOrderKey, frameList.front()->toString());
frameList = tag->frameListMap()["TSOA"];
if(!frameList.isEmpty())
TagLib::AddStringToCFDictionary(dictionary, Metadata::kAlbumTitleSortOrderKey, frameList.front()->toString());
frameList = tag->frameListMap()["TSOP"];
if(!frameList.isEmpty())
TagLib::AddStringToCFDictionary(dictionary, Metadata::kArtistSortOrderKey, frameList.front()->toString());
frameList = tag->frameListMap()["TSO2"];
if(!frameList.isEmpty())
TagLib::AddStringToCFDictionary(dictionary, Metadata::kAlbumArtistSortOrderKey, frameList.front()->toString());
frameList = tag->frameListMap()["TSOC"];
if(!frameList.isEmpty())
TagLib::AddStringToCFDictionary(dictionary, Metadata::kComposerSortOrderKey, frameList.front()->toString());
frameList = tag->frameListMap()["TIT1"];
if(!frameList.isEmpty())
TagLib::AddStringToCFDictionary(dictionary, Metadata::kGroupingKey, frameList.front()->toString());
// ReplayGain
bool foundReplayGain = false;
// Preference is TXXX frames, RVA2 frame, then LAME header
auto trackGainFrame = TagLib::ID3v2::UserTextIdentificationFrame::find(const_cast<TagLib::ID3v2::Tag *>(tag), "REPLAYGAIN_TRACK_GAIN");
auto trackPeakFrame = TagLib::ID3v2::UserTextIdentificationFrame::find(const_cast<TagLib::ID3v2::Tag *>(tag), "REPLAYGAIN_TRACK_PEAK");
auto albumGainFrame = TagLib::ID3v2::UserTextIdentificationFrame::find(const_cast<TagLib::ID3v2::Tag *>(tag), "REPLAYGAIN_ALBUM_GAIN");
auto albumPeakFrame = TagLib::ID3v2::UserTextIdentificationFrame::find(const_cast<TagLib::ID3v2::Tag *>(tag), "REPLAYGAIN_ALBUM_PEAK");
if(!trackGainFrame)
trackGainFrame = TagLib::ID3v2::UserTextIdentificationFrame::find(const_cast<TagLib::ID3v2::Tag *>(tag), "replaygain_track_gain");
if(trackGainFrame) {
SFB::CFString str(trackGainFrame->fieldList().back().toCString(true), kCFStringEncodingUTF8);
double num = CFStringGetDoubleValue(str);
AddDoubleToDictionary(dictionary, Metadata::kTrackGainKey, num);
AddDoubleToDictionary(dictionary, Metadata::kReferenceLoudnessKey, 89.0);
foundReplayGain = true;
}
if(!trackPeakFrame)
trackPeakFrame = TagLib::ID3v2::UserTextIdentificationFrame::find(const_cast<TagLib::ID3v2::Tag *>(tag), "replaygain_track_peak");
if(trackPeakFrame) {
SFB::CFString str(trackPeakFrame->fieldList().back().toCString(true), kCFStringEncodingUTF8);
double num = CFStringGetDoubleValue(str);
AddDoubleToDictionary(dictionary, Metadata::kTrackPeakKey, num);
}
if(!albumGainFrame)
albumGainFrame = TagLib::ID3v2::UserTextIdentificationFrame::find(const_cast<TagLib::ID3v2::Tag *>(tag), "replaygain_album_gain");
if(albumGainFrame) {
SFB::CFString str(albumGainFrame->fieldList().back().toCString(true), kCFStringEncodingUTF8);
double num = CFStringGetDoubleValue(str);
AddDoubleToDictionary(dictionary, Metadata::kAlbumGainKey, num);
AddDoubleToDictionary(dictionary, Metadata::kReferenceLoudnessKey, 89.0);
foundReplayGain = true;
}
if(!albumPeakFrame)
albumPeakFrame = TagLib::ID3v2::UserTextIdentificationFrame::find(const_cast<TagLib::ID3v2::Tag *>(tag), "replaygain_album_peak");
if(albumPeakFrame) {
SFB::CFString str(albumPeakFrame->fieldList().back().toCString(true), kCFStringEncodingUTF8);
double num = CFStringGetDoubleValue(str);
AddDoubleToDictionary(dictionary, Metadata::kAlbumPeakKey, num);
}
// If nothing found check for RVA2 frame
if(!foundReplayGain) {
frameList = tag->frameListMap()["RVA2"];
for(auto frameIterator : tag->frameListMap()["RVA2"]) {
TagLib::ID3v2::RelativeVolumeFrame *relativeVolume = dynamic_cast<TagLib::ID3v2::RelativeVolumeFrame *>(frameIterator);
if(!relativeVolume)
continue;
// Attempt to use the master volume if present
auto channels = relativeVolume->channels();
auto channelType = TagLib::ID3v2::RelativeVolumeFrame::MasterVolume;
// Fall back on whatever else exists in the frame
if(!channels.contains(TagLib::ID3v2::RelativeVolumeFrame::MasterVolume))
channelType = channels.front();
float volumeAdjustment = relativeVolume->volumeAdjustment(channelType);
if(TagLib::String("track", TagLib::String::Latin1) == relativeVolume->identification()) {
if((int)volumeAdjustment)
AddFloatToDictionary(dictionary, Metadata::kTrackGainKey, volumeAdjustment);
}
else if(TagLib::String("album", TagLib::String::Latin1) == relativeVolume->identification()) {
if((int)volumeAdjustment)
AddFloatToDictionary(dictionary, Metadata::kAlbumGainKey, volumeAdjustment);
}
// Fall back to track gain if identification is not specified
else {
if((int)volumeAdjustment)
AddFloatToDictionary(dictionary, Metadata::kTrackGainKey, volumeAdjustment);
}
}
}
// Extract album art if present
for(auto it : tag->frameListMap()["APIC"]) {
TagLib::ID3v2::AttachedPictureFrame *frame = dynamic_cast<TagLib::ID3v2::AttachedPictureFrame *>(it);
if(frame) {
SFB::CFData data((const UInt8 *)frame->picture().data(), (CFIndex)frame->picture().size());
SFB::CFString description;
if(!frame->description().isEmpty())
description = CFString(frame->description().toCString(true), kCFStringEncodingUTF8);
attachedPictures.push_back(std::make_shared<AttachedPicture>(data, (AttachedPicture::Type)frame->type(), description));
}
}
return true;
}
bool SFB::Audio::AddAPETagToDictionary(CFMutableDictionaryRef dictionary, std::vector<std::shared_ptr<AttachedPicture>>& attachedPictures, const TagLib::APE::Tag *tag)
{
if(nullptr == dictionary || nullptr == tag)
return false;
if(tag->isEmpty())
return true;
SFB::CFMutableDictionary additionalMetadata(0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
for(auto iterator : tag->itemListMap()) {
auto item = iterator.second;
if(item.isEmpty())
continue;
if(TagLib::APE::Item::Text == item.type()) {
SFB::CFString key(item.key().toCString(true), kCFStringEncodingUTF8);
SFB::CFString value(item.toString().toCString(true), kCFStringEncodingUTF8);
if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ALBUM"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kAlbumTitleKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ARTIST"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kArtistKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ALBUMARTIST"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kAlbumArtistKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("COMPOSER"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kComposerKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("GENRE"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kGenreKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("DATE"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kReleaseDateKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("DESCRIPTION"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kCommentKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("TITLE"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kTitleKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("TRACKNUMBER"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kTrackNumberKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("TRACKTOTAL"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kTrackTotalKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("COMPILATION"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kCompilationKey, CFStringGetIntValue(value) ? kCFBooleanTrue : kCFBooleanFalse);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("DISCNUMBER"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kDiscNumberKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("DISCTOTAL"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kDiscTotalKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("LYRICS"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kLyricsKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("BPM"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kBPMKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("RATING"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kRatingKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ISRC"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kISRCKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("MCN"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kMCNKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("MUSICBRAINZ_ALBUMID"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kMusicBrainzReleaseIDKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("MUSICBRAINZ_TRACKID"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kMusicBrainzRecordingIDKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("TITLESORT"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kTitleSortOrderKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ALBUMTITLESORT"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kAlbumTitleSortOrderKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ARTISTSORT"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kArtistSortOrderKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ALBUMARTISTSORT"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kAlbumArtistSortOrderKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("COMPOSERSORT"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kComposerSortOrderKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("GROUPING"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kGroupingKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("REPLAYGAIN_REFERENCE_LOUDNESS"), kCFCompareCaseInsensitive))
AddDoubleToDictionary(dictionary, Metadata::kReferenceLoudnessKey, CFStringGetDoubleValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("REPLAYGAIN_TRACK_GAIN"), kCFCompareCaseInsensitive))
AddDoubleToDictionary(dictionary, Metadata::kTrackGainKey, CFStringGetDoubleValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("REPLAYGAIN_TRACK_PEAK"), kCFCompareCaseInsensitive))
AddDoubleToDictionary(dictionary, Metadata::kTrackPeakKey, CFStringGetDoubleValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("REPLAYGAIN_ALBUM_GAIN"), kCFCompareCaseInsensitive))
AddDoubleToDictionary(dictionary, Metadata::kAlbumGainKey, CFStringGetDoubleValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("REPLAYGAIN_ALBUM_PEAK"), kCFCompareCaseInsensitive))
AddDoubleToDictionary(dictionary, Metadata::kAlbumPeakKey, CFStringGetDoubleValue(value));
#if 0
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("METADATA_BLOCK_PICTURE"), kCFCompareCaseInsensitive)) {
// Handle embedded pictures
for(auto blockIterator : item.values()) {
auto encodedBlock = blockIterator.data(TagLib::String::UTF8);
// Decode the Base-64 encoded data
auto decodedBlock = TagLib::DecodeBase64(encodedBlock);
// Create the picture
TagLib::FLAC::Picture picture;
picture.parse(decodedBlock);
SFB::CFData data((const UInt8 *)picture.data().data(), picture.data().size());
SFB::CFString description = nullptr;
if(!picture.description().isNull())
description(picture.description().toCString(true), kCFStringEncodingUTF8);
attachedPictures.push_back(std::make_shared<AttachedPicture>(data, (AttachedPicture::Type)picture.type(), description));
}
}
#endif
// Put all unknown tags into the additional metadata
else
CFDictionarySetValue(additionalMetadata, key, value);
}
else if(TagLib::APE::Item::Binary == item.type()) {
SFB::CFString key(item.key().toCString(true), kCFStringEncodingUTF8);
// From http://www.hydrogenaudio.org/forums/index.php?showtopic=40603&view=findpost&p=504669
/*
<length> 32 bit
<flags with binary bit set> 32 bit
<field name> "Cover Art (Front)"|"Cover Art (Back)"
0x00
<description> UTF-8 string (needs to be a file name to be recognized by AudioShell - meh)
0x00
<cover data> binary
*/
if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("Cover Art (Front)"), kCFCompareCaseInsensitive) || kCFCompareEqualTo == CFStringCompare(key, CFSTR("Cover Art (Back)"), kCFCompareCaseInsensitive)) {
auto binaryData = item.binaryData();
size_t pos = binaryData.find('\0');
if(TagLib::ByteVector::npos() != pos && 3 < binaryData.size()) {
SFB::CFData data((const UInt8 *)binaryData.mid(pos + 1).data(), (CFIndex)(binaryData.size() - pos - 1));
SFB::CFString description(TagLib::String(binaryData.mid(0, pos), TagLib::String::UTF8).toCString(true), kCFStringEncodingUTF8);
attachedPictures.push_back(std::make_shared<AttachedPicture>(data, kCFCompareEqualTo == CFStringCompare(key, CFSTR("Cover Art (Front)"), kCFCompareCaseInsensitive) ? AttachedPicture::Type::FrontCover : AttachedPicture::Type::BackCover, description));
}
}
}
}
if(CFDictionaryGetCount(additionalMetadata))
CFDictionarySetValue(dictionary, Metadata::kAdditionalMetadataKey, additionalMetadata);
return true;
}
bool MP3Metadata::ReadMetadata(CFErrorRef *error)
{
// Start from scratch
CFDictionaryRemoveAllValues(mMetadata);
CFDictionaryRemoveAllValues(mChangedMetadata);
UInt8 buf [PATH_MAX];
if(!CFURLGetFileSystemRepresentation(mURL, false, buf, PATH_MAX))
return false;
auto stream = new TagLib::FileStream(reinterpret_cast<const char *>(buf), true);
TagLib::MPEG::File file(stream, TagLib::ID3v2::FrameFactory::instance());
if(!file.isValid()) {
if(nullptr != error) {
CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid MPEG file."), "");
CFStringRef failureReason = CFCopyLocalizedString(CFSTR("Not an MPEG file"), "");
CFStringRef recoverySuggestion = CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), "");
*error = CreateErrorForURL(AudioMetadataErrorDomain, AudioMetadataInputOutputError, description, mURL, failureReason, recoverySuggestion);
CFRelease(description), description = nullptr;
CFRelease(failureReason), failureReason = nullptr;
CFRelease(recoverySuggestion), recoverySuggestion = nullptr;
}
return false;
}
CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("MP3"));
if(file.audioProperties()) {
auto properties = file.audioProperties();
AddAudioPropertiesToDictionary(mMetadata, properties);
// TODO: Is this too much information?
#if 0
switch(properties->version()) {
case TagLib::MPEG::Header::Version1:
switch(properties->layer()) {
case 1: CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("MPEG-1 Layer I")); break;
case 2: CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("MPEG-1 Layer II")); break;
case 3: CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("MPEG-1 Layer III")); break;
}
break;
case TagLib::MPEG::Header::Version2:
switch(properties->layer()) {
case 1: CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("MPEG-2 Layer I")); break;
case 2: CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("MPEG-2 Layer II")); break;
case 3: CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("MPEG-2 Layer III")); break;
}
break;
case TagLib::MPEG::Header::Version2_5:
switch(properties->layer()) {
case 1: CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("MPEG-2.5 Layer I")); break;
case 2: CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("MPEG-2.5 Layer II")); break;
case 3: CFDictionarySetValue(mMetadata, kPropertiesFormatNameKey, CFSTR("MPEG-2.5 Layer III")); break;
}
break;
}
#endif
if(properties->xingHeader() && properties->xingHeader()->totalFrames())
AddIntToDictionary(mMetadata, kPropertiesTotalFramesKey, properties->xingHeader()->totalFrames());
}
if(file.APETag()) {
std::vector<AttachedPicture *> pictures;
AddAPETagToDictionary(mMetadata, pictures, file.APETag());
for(auto picture : pictures)
AddSavedPicture(picture);
}
if(file.ID3v1Tag())
AddID3v1TagToDictionary(mMetadata, file.ID3v1Tag());
if(file.ID3v2Tag()) {
std::vector<AttachedPicture *> pictures;
AddID3v2TagToDictionary(mMetadata, pictures, file.ID3v2Tag());
for(auto picture : pictures)
AddSavedPicture(picture);
}
return true;
}
bool SFB::Audio::AddXiphCommentToDictionary(CFMutableDictionaryRef dictionary, std::vector<std::shared_ptr<AttachedPicture>>& attachedPictures, const TagLib::Ogg::XiphComment *tag)
{
if(nullptr == dictionary || nullptr == tag)
return false;
SFB::CFMutableDictionary additionalMetadata = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
for(auto it : tag->fieldListMap()) {
// According to the Xiph comment specification keys should only contain a limited subset of ASCII, but UTF-8 is a safer choice
SFB::CFString key = CFStringCreateWithCString(kCFAllocatorDefault, it.first.toCString(true), kCFStringEncodingUTF8);
// Vorbis allows multiple comments with the same key, but this isn't supported by AudioMetadata
SFB::CFString value = CFStringCreateWithCString(kCFAllocatorDefault, it.second.front().toCString(true), kCFStringEncodingUTF8);
if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ALBUM"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kAlbumTitleKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ARTIST"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kArtistKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ALBUMARTIST"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kAlbumArtistKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("COMPOSER"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kComposerKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("GENRE"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kGenreKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("DATE"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kReleaseDateKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("DESCRIPTION"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kCommentKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("TITLE"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kTitleKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("TRACKNUMBER"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kTrackNumberKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("TRACKTOTAL"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kTrackTotalKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("COMPILATION"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kCompilationKey, CFStringGetIntValue(value) ? kCFBooleanTrue : kCFBooleanFalse);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("DISCNUMBER"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kDiscNumberKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("DISCTOTAL"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kDiscTotalKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("LYRICS"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kLyricsKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("BPM"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kBPMKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("RATING"), kCFCompareCaseInsensitive))
AddIntToDictionary(dictionary, Metadata::kRatingKey, CFStringGetIntValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ISRC"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kISRCKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("MCN"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kMCNKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("MUSICBRAINZ_ALBUMID"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kMusicBrainzReleaseIDKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("MUSICBRAINZ_TRACKID"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kMusicBrainzRecordingIDKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("TITLESORT"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kTitleSortOrderKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ALBUMTITLESORT"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kAlbumTitleSortOrderKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ARTISTSORT"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kArtistSortOrderKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("ALBUMARTISTSORT"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kAlbumArtistSortOrderKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("COMPOSERSORT"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kComposerSortOrderKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("GROUPING"), kCFCompareCaseInsensitive))
CFDictionarySetValue(dictionary, Metadata::kGroupingKey, value);
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("REPLAYGAIN_REFERENCE_LOUDNESS"), kCFCompareCaseInsensitive))
AddDoubleToDictionary(dictionary, Metadata::kReferenceLoudnessKey, CFStringGetDoubleValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("REPLAYGAIN_TRACK_GAIN"), kCFCompareCaseInsensitive))
AddDoubleToDictionary(dictionary, Metadata::kTrackGainKey, CFStringGetDoubleValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("REPLAYGAIN_TRACK_PEAK"), kCFCompareCaseInsensitive))
AddDoubleToDictionary(dictionary, Metadata::kTrackPeakKey, CFStringGetDoubleValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("REPLAYGAIN_ALBUM_GAIN"), kCFCompareCaseInsensitive))
AddDoubleToDictionary(dictionary, Metadata::kAlbumGainKey, CFStringGetDoubleValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("REPLAYGAIN_ALBUM_PEAK"), kCFCompareCaseInsensitive))
AddDoubleToDictionary(dictionary, Metadata::kAlbumPeakKey, CFStringGetDoubleValue(value));
else if(kCFCompareEqualTo == CFStringCompare(key, CFSTR("METADATA_BLOCK_PICTURE"), kCFCompareCaseInsensitive)) {
// Handle embedded pictures
for(auto blockIterator : it.second) {
auto encodedBlock = blockIterator.data(TagLib::String::UTF8);
// Decode the Base-64 encoded data
auto decodedBlock = TagLib::DecodeBase64(encodedBlock);
// Create the picture
TagLib::FLAC::Picture picture;
picture.parse(decodedBlock);
SFB::CFData data = CFDataCreate(kCFAllocatorDefault, (const UInt8 *)picture.data().data(), (CFIndex)picture.data().size());
SFB::CFString description;
if(!picture.description().isEmpty())
description = CFStringCreateWithCString(kCFAllocatorDefault, picture.description().toCString(true), kCFStringEncodingUTF8);
attachedPictures.push_back(std::make_shared<AttachedPicture>(data, (AttachedPicture::Type)picture.type(), description));
}
}
// Put all unknown tags into the additional metadata
else
CFDictionarySetValue(additionalMetadata, key, value);
}
if(CFDictionaryGetCount(additionalMetadata))
CFDictionarySetValue(dictionary, Metadata::kAdditionalMetadataKey, additionalMetadata);
return true;
}
