CFDictionaryRef SFB::Audio::Metadata::CreateDictionaryRepresentation() const
{
CFMutableDictionaryRef dictionaryRepresentation = CFDictionaryCreateMutableCopy(kCFAllocatorDefault, 0, mMetadata);
CFIndex count = CFDictionaryGetCount(mChangedMetadata);
CFTypeRef *keys = (CFTypeRef *)malloc(sizeof(CFTypeRef) * (size_t)count);
CFTypeRef *values = (CFTypeRef *)malloc(sizeof(CFTypeRef) * (size_t)count);
CFDictionaryGetKeysAndValues(mChangedMetadata, keys, values);
for(CFIndex i = 0; i < count; ++i) {
if(kCFNull == values[i])
CFDictionaryRemoveValue(dictionaryRepresentation, keys[i]);
else
CFDictionarySetValue(dictionaryRepresentation, keys[i], values[i]);
}
free(keys), keys = nullptr;
free(values), values = nullptr;
CFMutableArray pictureArray = CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks);
for(auto picture : GetAttachedPictures()) {
CFDictionary pictureRepresentation = picture->CreateDictionaryRepresentation();
CFArrayAppendValue(pictureArray, pictureRepresentation);
}
if(0 < CFArrayGetCount(pictureArray)) {
CFDictionarySetValue(dictionaryRepresentation, kAttachedPicturesKey, pictureArray);
}
return dictionaryRepresentation;
}
bool FLACMetadata::WriteMetadata(CFErrorRef *error)
{
UInt8 buf [PATH_MAX];
if(!CFURLGetFileSystemRepresentation(mURL, false, buf, PATH_MAX))
return false;
auto stream = new TagLib::FileStream(reinterpret_cast<const char *>(buf));
TagLib::FLAC::File file(stream, TagLib::ID3v2::FrameFactory::instance(), false);
if(!file.isValid()) {
if(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;
}
SetXiphCommentFromMetadata(*this, file.xiphComment(), false);
// Remove existing cover art
file.removePictures();
// Add album art
for(auto attachedPicture : GetAttachedPictures()) {
CGImageSourceRef imageSource = CGImageSourceCreateWithData(attachedPicture->GetData(), nullptr);
if(nullptr == imageSource) {
LOGGER_ERR("org.sbooth.AudioEngine.AudioMetadata.FLAC", "Skipping album art (unable to create image)");
continue;
}
TagLib::FLAC::Picture *picture = new TagLib::FLAC::Picture;
picture->setData(TagLib::ByteVector((const char *)CFDataGetBytePtr(attachedPicture->GetData()), (TagLib::uint)CFDataGetLength(attachedPicture->GetData())));
picture->setType(static_cast<TagLib::FLAC::Picture::Type>(attachedPicture->GetType()));
if(attachedPicture->GetDescription())
picture->setDescription(TagLib::StringFromCFString(attachedPicture->GetDescription()));
// Convert the image's UTI into a MIME type
CFStringRef mimeType = UTTypeCopyPreferredTagWithClass(CGImageSourceGetType(imageSource), kUTTagClassMIMEType);
if(mimeType) {
picture->setMimeType(TagLib::StringFromCFString(mimeType));
CFRelease(mimeType), mimeType = nullptr;
}
// Flesh out the height, width, and depth
CFDictionaryRef imagePropertiesDictionary = CGImageSourceCopyPropertiesAtIndex(imageSource, 0, nullptr);
if(imagePropertiesDictionary) {
CFNumberRef imageWidth = (CFNumberRef)CFDictionaryGetValue(imagePropertiesDictionary, kCGImagePropertyPixelWidth);
CFNumberRef imageHeight = (CFNumberRef)CFDictionaryGetValue(imagePropertiesDictionary, kCGImagePropertyPixelHeight);
CFNumberRef imageDepth = (CFNumberRef)CFDictionaryGetValue(imagePropertiesDictionary, kCGImagePropertyDepth);
int height, width, depth;
// Ignore numeric conversion errors
CFNumberGetValue(imageWidth, kCFNumberIntType, &width);
CFNumberGetValue(imageHeight, kCFNumberIntType, &height);
CFNumberGetValue(imageDepth, kCFNumberIntType, &depth);
picture->setHeight(height);
picture->setWidth(width);
picture->setColorDepth(depth);
CFRelease(imagePropertiesDictionary), imagePropertiesDictionary = nullptr;
}
file.addPicture(picture);
CFRelease(imageSource), imageSource = nullptr;
}
if(!file.save()) {
if(error) {
CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid FLAC file."), "");
CFStringRef failureReason = CFCopyLocalizedString(CFSTR("Unable to write metadata"), "");
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;
}
MergeChangedMetadataIntoMetadata();
return true;
}
