Пример #1
0
bool SFB::Audio::Metadata::WriteMetadata(CFErrorRef *error)
{
	bool result = _WriteMetadata(error);
	if(result)
		MergeChangedMetadataIntoMetadata();
	return result;
}
Пример #2
0
void SFB::Audio::Metadata::MergeChangedMetadataIntoMetadata()
{
	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(mMetadata, keys[i]);
		else
			CFDictionarySetValue(mMetadata, keys[i], values[i]);
	}
	
	free(keys), keys = nullptr;
	free(values), values = nullptr;
	
	CFDictionaryRemoveAllValues(mChangedMetadata);

	auto iter = std::begin(mPictures);
	while(iter != std::end(mPictures)) {
		auto picture = *iter;
		if(AttachedPicture::ChangeState::Removed == picture->mState)
			iter = mPictures.erase(iter);
		else {
			picture->MergeChangedMetadataIntoMetadata();
			picture->mState = AttachedPicture::ChangeState::Saved;
			++iter;
		}
	}
}
bool MP3Metadata::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::MPEG::File file(stream, TagLib::ID3v2::FrameFactory::instance(), false);
	
	if(!file.isValid()) {
		if(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;
	}

	// APE and ID3v1 tags are only written if present, but ID3v2 tags are always written

	auto APETag = file.APETag();
	if(APETag && !APETag->isEmpty())
		SetAPETagFromMetadata(*this, APETag);

	auto ID3v1Tag = file.ID3v1Tag();
	if(ID3v1Tag && !ID3v1Tag->isEmpty())
		SetID3v1TagFromMetadata(*this, ID3v1Tag);

	SetID3v2TagFromMetadata(*this, file.ID3v2Tag(true));

	if(!file.save()) {
		if(error) {
			CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid MPEG 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;
}
bool MonkeysAudioMetadata::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::APE::File file(stream, false);
	
	if(!file.isValid()) {
		if(error) {
			CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Monkey's Audio file."), "");
			CFStringRef failureReason = CFCopyLocalizedString(CFSTR("Not a Monkey's 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;
	}

	// Although both ID3v1 and APE tags are read, only APE tags are written
	if(file.APETag())
		SetAPETagFromMetadata(*this, file.APETag());

	if(!file.save()) {
		if(error) {
			CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Monkey's Audio 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;
}
bool OggVorbisMetadata::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::Ogg::Vorbis::File file(stream, false);
	
	if(!file.isValid()) {
		if(error) {
			CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Ogg Vorbis file."), "");
			CFStringRef failureReason = CFCopyLocalizedString(CFSTR("Not an Ogg Vorbis 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.tag());

	if(!file.save()) {
		if(error) {
			CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Ogg Vorbis 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;
}
bool TrueAudioMetadata::WriteMetadata(CFErrorRef *error)
{
	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)));
	if(!stream->isOpen()) {
		if(error) {
			CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” could not be opened for writing."), "");
			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(), false);
	if(!file.isValid()) {
		if(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;
	}

	// ID3v1 tags are only written if present, but ID3v2 tags are always written

	if(file.ID3v1Tag())
		SetID3v1TagFromMetadata(*this, file.ID3v1Tag());

	SetID3v2TagFromMetadata(*this, file.ID3v2Tag(true));

	if(!file.save()) {
		if(error) {
			CFStringRef description = CFCopyLocalizedString(CFSTR("The file “%@” is not a valid True Audio 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;
}
Пример #7
0
bool MonkeysAudioMetadata::WriteMetadata(CFErrorRef *error)
{
	UInt8 buf [PATH_MAX];
	if(!CFURLGetFileSystemRepresentation(mURL, false, buf, PATH_MAX))
		return false;
	
	TagLib::IOStream *stream = new TagLib::FileStream(reinterpret_cast<const char *>(buf));
	TagLib::APE::File file(stream, false);
	
	if(!file.isValid()) {
		if(error) {
			CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault, 
																			   0,
																			   &kCFTypeDictionaryKeyCallBacks,
																			   &kCFTypeDictionaryValueCallBacks);
			
			CFStringRef displayName = CreateDisplayNameForURL(mURL);
			CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault, 
															   NULL, 
															   CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Mpnkey's Audio file."), ""), 
															   displayName);
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedDescriptionKey, 
								 errorString);
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedFailureReasonKey, 
								 CFCopyLocalizedString(CFSTR("Not a Mpnkey's Audio file"), ""));
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedRecoverySuggestionKey, 
								 CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
			
			CFRelease(errorString), errorString = NULL;
			CFRelease(displayName), displayName = NULL;
			
			*error = CFErrorCreate(kCFAllocatorDefault, 
								   AudioMetadataErrorDomain, 
								   AudioMetadataInputOutputError, 
								   errorDictionary);
			
			CFRelease(errorDictionary), errorDictionary = NULL;				
		}
		
		return false;
	}

	// Although both ID3v1 and APE tags are read, only APE tags are written
	if(file.APETag())
		SetAPETagFromMetadata(*this, file.APETag());

	if(!file.save()) {
		if(error) {
			CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault, 
																			   0,
																			   &kCFTypeDictionaryKeyCallBacks,
																			   &kCFTypeDictionaryValueCallBacks);
			
			CFStringRef displayName = CreateDisplayNameForURL(mURL);
			CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault, 
															   NULL, 
															   CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Mpnkey's Audio file."), ""), 
															   displayName);
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedDescriptionKey, 
								 errorString);
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedFailureReasonKey, 
								 CFCopyLocalizedString(CFSTR("Unable to write metadata"), ""));
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedRecoverySuggestionKey, 
								 CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
			
			CFRelease(errorString), errorString = NULL;
			CFRelease(displayName), displayName = NULL;
			
			*error = CFErrorCreate(kCFAllocatorDefault, 
								   AudioMetadataErrorDomain, 
								   AudioMetadataInputOutputError, 
								   errorDictionary);
			
			CFRelease(errorDictionary), errorDictionary = NULL;				
		}
		
		return false;
	}
	
	MergeChangedMetadataIntoMetadata();
	
	return true;
}
Пример #8
0
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;
}
Пример #9
0
bool FLACMetadata::WriteMetadata(CFErrorRef *error)
{
	UInt8 buf [PATH_MAX];
	if(!CFURLGetFileSystemRepresentation(mURL, false, buf, PATH_MAX))
		return false;
	
	FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
	
	// ENOMEM sux
	if(NULL == chain)
		return false;
	
	if(!FLAC__metadata_chain_read(chain, reinterpret_cast<const char *>(buf))) {
		
		// Attempt to provide a descriptive error message
		if(NULL != error) {
			CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault, 
																			   32,
																			   &kCFTypeDictionaryKeyCallBacks,
																			   &kCFTypeDictionaryValueCallBacks);
			
			switch(FLAC__metadata_chain_status(chain)) {
				case FLAC__METADATA_CHAIN_STATUS_NOT_A_FLAC_FILE:
				{
					CFStringRef displayName = CreateDisplayNameForURL(mURL);
					CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault, 
																	   NULL, 
																	   CFCopyLocalizedString(CFSTR("The file “%@” is not a valid FLAC file."), ""), 
																	   displayName);
					
					CFDictionarySetValue(errorDictionary, 
										 kCFErrorLocalizedDescriptionKey, 
										 errorString);
					
					CFDictionarySetValue(errorDictionary, 
										 kCFErrorLocalizedFailureReasonKey, 
										 CFCopyLocalizedString(CFSTR("Not a FLAC file"), ""));
					
					CFDictionarySetValue(errorDictionary, 
										 kCFErrorLocalizedRecoverySuggestionKey, 
										 CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
					
					CFRelease(errorString), errorString = NULL;
					CFRelease(displayName), displayName = NULL;
					
					break;
				}
					
					
				case FLAC__METADATA_CHAIN_STATUS_BAD_METADATA:
				{
					CFStringRef displayName = CreateDisplayNameForURL(mURL);
					CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault, 
																	   NULL, 
																	   CFCopyLocalizedString(CFSTR("The file “%@” is not a valid FLAC file."), ""), 
																	   displayName);
					
					CFDictionarySetValue(errorDictionary, 
										 kCFErrorLocalizedDescriptionKey, 
										 errorString);
					
					CFDictionarySetValue(errorDictionary, 
										 kCFErrorLocalizedFailureReasonKey, 
										 CFCopyLocalizedString(CFSTR("Not a FLAC file"), ""));
					
					CFDictionarySetValue(errorDictionary, 
										 kCFErrorLocalizedRecoverySuggestionKey, 
										 CFCopyLocalizedString(CFSTR("The file contains bad metadata."), ""));
					
					CFRelease(errorString), errorString = NULL;
					CFRelease(displayName), displayName = NULL;
					
					break;
				}
					
				default:
				{
					CFStringRef displayName = CreateDisplayNameForURL(mURL);
					CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault, 
																	   NULL, 
																	   CFCopyLocalizedString(CFSTR("The file “%@” is not a valid FLAC file."), ""), 
																	   displayName);
					
					CFDictionarySetValue(errorDictionary, 
										 kCFErrorLocalizedDescriptionKey, 
										 errorString);
					
					CFDictionarySetValue(errorDictionary, 
										 kCFErrorLocalizedFailureReasonKey, 
										 CFCopyLocalizedString(CFSTR("Not a FLAC file"), ""));
					
					CFDictionarySetValue(errorDictionary, 
										 kCFErrorLocalizedRecoverySuggestionKey, 
										 CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
					
					CFRelease(errorString), errorString = NULL;
					CFRelease(displayName), displayName = NULL;
					
					break;
				}
			}
			
			*error = CFErrorCreate(kCFAllocatorDefault, 
								   AudioMetadataErrorDomain, 
								   AudioMetadataFileFormatNotRecognizedError, 
								   errorDictionary);
			
			CFRelease(errorDictionary), errorDictionary = NULL;
		}
		
		FLAC__metadata_chain_delete(chain), chain = NULL;
		
		return false;
	}
	
	FLAC__metadata_chain_sort_padding(chain);
	
	FLAC__Metadata_Iterator *iterator = FLAC__metadata_iterator_new();
	
	if(NULL == iterator) {
		FLAC__metadata_chain_delete(chain), chain = NULL;

		return false;
	}
	
	FLAC__metadata_iterator_init(iterator, chain);
	
	// Seek to the vorbis comment block if it exists
	while(FLAC__METADATA_TYPE_VORBIS_COMMENT != FLAC__metadata_iterator_get_block_type(iterator)) {
		if(!FLAC__metadata_iterator_next(iterator))
			break; // Already at end
	}
	
	FLAC__StreamMetadata *block = NULL;
	
	// If there isn't a vorbis comment block add one
	if(FLAC__METADATA_TYPE_VORBIS_COMMENT != FLAC__metadata_iterator_get_block_type(iterator)) {
		
		// The padding block will be the last block if it exists; add the comment block before it
		if(FLAC__METADATA_TYPE_PADDING == FLAC__metadata_iterator_get_block_type(iterator))
			FLAC__metadata_iterator_prev(iterator);
		
		block = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT);
		
		if(NULL == block) {
			FLAC__metadata_chain_delete(chain), chain = NULL;
			FLAC__metadata_iterator_delete(iterator), iterator = NULL;

			return false;
		}
		
		// Add our metadata
		if(!FLAC__metadata_iterator_insert_block_after(iterator, block)) {
			if(NULL != error) {
				CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault, 
																				   32,
																				   &kCFTypeDictionaryKeyCallBacks,
																				   &kCFTypeDictionaryValueCallBacks);

				CFStringRef displayName = CreateDisplayNameForURL(mURL);
				CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault, 
																   NULL, 
																   CFCopyLocalizedString(CFSTR("The file “%@” is not a valid FLAC file."), ""), 
																   displayName);
				
				CFDictionarySetValue(errorDictionary, 
									 kCFErrorLocalizedDescriptionKey, 
									 errorString);
				
				CFDictionarySetValue(errorDictionary, 
									 kCFErrorLocalizedFailureReasonKey, 
									 CFCopyLocalizedString(CFSTR("Unable to write metadata"), ""));
				
				CFDictionarySetValue(errorDictionary, 
									 kCFErrorLocalizedRecoverySuggestionKey, 
									 CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
				
				CFRelease(errorString), errorString = NULL;
				CFRelease(displayName), displayName = NULL;

				*error = CFErrorCreate(kCFAllocatorDefault, 
									   AudioMetadataErrorDomain, 
									   AudioMetadataInputOutputError, 
									   errorDictionary);
				
				CFRelease(errorDictionary), errorDictionary = NULL;				
			}
			
			FLAC__metadata_chain_delete(chain), chain = NULL;
			FLAC__metadata_iterator_delete(iterator), iterator = NULL;
			
			return false;
		}
	}
	else
		block = FLAC__metadata_iterator_get_block(iterator);
	
	// Standard tags
	SetVorbisComment(block, "ALBUM", GetAlbumTitle());
	SetVorbisComment(block, "ARTIST", GetArtist());
	SetVorbisComment(block, "ALBUMARTIST", GetAlbumArtist());
	SetVorbisComment(block, "COMPOSER", GetComposer());
	SetVorbisComment(block, "GENRE", GetGenre());
	SetVorbisComment(block, "DATE", GetReleaseDate());
	SetVorbisComment(block, "DESCRIPTION", GetComment());
	SetVorbisComment(block, "TITLE", GetTitle());
	SetVorbisCommentNumber(block, "TRACKNUMBER", GetTrackNumber());
	SetVorbisCommentNumber(block, "TRACKTOTAL", GetTrackTotal());
	SetVorbisCommentBoolean(block, "COMPILATION", GetCompilation());
	SetVorbisCommentNumber(block, "DISCNUMBER", GetDiscNumber());
	SetVorbisCommentNumber(block, "DISCTOTAL", GetDiscTotal());
	SetVorbisComment(block, "ISRC", GetISRC());
	SetVorbisComment(block, "MCN", GetMCN());

	// Additional metadata
	CFDictionaryRef additionalMetadata = GetAdditionalMetadata();
	if(NULL != additionalMetadata) {
		CFIndex count = CFDictionaryGetCount(additionalMetadata);
		
		const void * keys [count];
		const void * values [count];
		
		CFDictionaryGetKeysAndValues(additionalMetadata, 
									 reinterpret_cast<const void **>(keys), 
									 reinterpret_cast<const void **>(values));
		
		for(CFIndex i = 0; i < count; ++i) {
			CFIndex keySize = CFStringGetMaximumSizeForEncoding(CFStringGetLength(reinterpret_cast<CFStringRef>(keys[i])), kCFStringEncodingASCII);
			char key [keySize + 1];
			       
			if(!CFStringGetCString(reinterpret_cast<CFStringRef>(keys[i]), key, keySize + 1, kCFStringEncodingASCII)) {
				log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.FLAC");
				LOG4CXX_WARN(logger, "CFStringGetCString() failed");
				continue;
			}
			
			SetVorbisComment(block, key, reinterpret_cast<CFStringRef>(values[i]));
		}
	}
	
	// ReplayGain info
	SetVorbisCommentDouble(block, "REPLAYGAIN_REFERENCE_LOUDNESS", GetReplayGainReferenceLoudness(), CFSTR("%2.1f dB"));
	SetVorbisCommentDouble(block, "REPLAYGAIN_TRACK_GAIN", GetReplayGainReferenceLoudness(), CFSTR("%+2.2f dB"));
	SetVorbisCommentDouble(block, "REPLAYGAIN_TRACK_PEAK", GetReplayGainTrackGain(), CFSTR("%1.8f"));
	SetVorbisCommentDouble(block, "REPLAYGAIN_ALBUM_GAIN", GetReplayGainAlbumGain(), CFSTR("%+2.2f dB"));
	SetVorbisCommentDouble(block, "REPLAYGAIN_ALBUM_PEAK", GetReplayGainAlbumPeak(), CFSTR("%1.8f"));
	
	// Write the new metadata to the file
	if(!FLAC__metadata_chain_write(chain, true, false)) {
		if(NULL != error) {
			CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault, 
																			   32,
																			   &kCFTypeDictionaryKeyCallBacks,
																			   &kCFTypeDictionaryValueCallBacks);

			CFStringRef displayName = CreateDisplayNameForURL(mURL);
			CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault, 
															   NULL, 
															   CFCopyLocalizedString(CFSTR("The file “%@” is not a valid FLAC file."), ""), 
															   displayName);
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedDescriptionKey, 
								 errorString);
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedFailureReasonKey, 
								 CFCopyLocalizedString(CFSTR("Unable to write metadata"), ""));
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedRecoverySuggestionKey, 
								 CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
			
			CFRelease(errorString), errorString = NULL;
			CFRelease(displayName), displayName = NULL;
			
			*error = CFErrorCreate(kCFAllocatorDefault, 
								   AudioMetadataErrorDomain, 
								   AudioMetadataInputOutputError, 
								   errorDictionary);
			
			CFRelease(errorDictionary), errorDictionary = NULL;				
		}
		
		FLAC__metadata_chain_delete(chain), chain = NULL;
		FLAC__metadata_iterator_delete(iterator), iterator = NULL;
		
		return false;
	}
	
	FLAC__metadata_chain_delete(chain), chain = NULL;
	FLAC__metadata_iterator_delete(iterator), iterator = NULL;
	
	MergeChangedMetadataIntoMetadata();
	
	return true;
}
Пример #10
0
bool MP4Metadata::WriteMetadata(CFErrorRef *error)
{
	UInt8 buf [PATH_MAX];
	if(!CFURLGetFileSystemRepresentation(mURL, false, buf, PATH_MAX))
		return false;
	
	// Open the file for modification
	MP4FileHandle file = MP4Modify(reinterpret_cast<const char *>(buf));
	if(MP4_INVALID_FILE_HANDLE == file) {
		if(error) {
			CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault, 
																			   32,
																			   &kCFTypeDictionaryKeyCallBacks,
																			   &kCFTypeDictionaryValueCallBacks);
			
			CFStringRef displayName = CreateDisplayNameForURL(mURL);
			CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault, 
															   NULL, 
															   CFCopyLocalizedString(CFSTR("The file “%@” is not a valid MPEG-4 file."), ""), 
															   displayName);
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedDescriptionKey, 
								 errorString);
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedFailureReasonKey, 
								 CFCopyLocalizedString(CFSTR("Not an MPEG file"), ""));
			
			CFDictionarySetValue(errorDictionary, 
								 kCFErrorLocalizedRecoverySuggestionKey, 
								 CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
			
			CFRelease(errorString), errorString = NULL;
			CFRelease(displayName), displayName = NULL;
			
			*error = CFErrorCreate(kCFAllocatorDefault, 
								   AudioMetadataErrorDomain, 
								   AudioMetadataInputOutputError, 
								   errorDictionary);
			
			CFRelease(errorDictionary), errorDictionary = NULL;				
		}
		
		return false;
	}
	
	// Read the tags
	const MP4Tags *tags = MP4TagsAlloc();

	if(NULL == tags) {
		MP4Close(file), file = NULL;
		
		if(error)
			*error = CFErrorCreate(kCFAllocatorDefault, kCFErrorDomainPOSIX, ENOMEM, NULL);
	
		return false;
	}
	
	MP4TagsFetch(tags, file);
	
	// Album Title
	CFStringRef str = GetAlbumTitle();

	if(str) {
		CFIndex cStringSize = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
		char cString [cStringSize + 1];
		
		if(!CFStringGetCString(str, cString, cStringSize + 1, kCFStringEncodingUTF8)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFStringGetCString() failed");
			return false;			
		}
		
		MP4TagsSetAlbum(tags, cString);
	}
	else
		MP4TagsSetAlbum(tags, NULL);

	// Artist
	str = GetArtist();
	
	if(str) {
		CFIndex cStringSize = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
		char cString [cStringSize + 1];
		
		if(!CFStringGetCString(str, cString, cStringSize + 1, kCFStringEncodingUTF8)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFStringGetCString() failed");
			return false;			
		}
		
		MP4TagsSetArtist(tags, cString);
	}
	else
		MP4TagsSetArtist(tags, NULL);
	
	// Album Artist
	str = GetAlbumArtist();
	
	if(str) {
		CFIndex cStringSize = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
		char cString [cStringSize + 1];
		
		if(!CFStringGetCString(str, cString, cStringSize + 1, kCFStringEncodingUTF8)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFStringGetCString() failed");
			return false;			
		}
		
		MP4TagsSetAlbumArtist(tags, cString);
	}
	else
		MP4TagsSetAlbumArtist(tags, NULL);

	// Genre
	str = GetGenre();
	
	if(str) {
		CFIndex cStringSize = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
		char cString [cStringSize + 1];
		
		if(!CFStringGetCString(str, cString, cStringSize + 1, kCFStringEncodingUTF8)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFStringGetCString() failed");
			return false;			
		}
		
		MP4TagsSetGenre(tags, cString);
	}
	else
		MP4TagsSetGenre(tags, NULL);
	
	// Release date
	str = GetReleaseDate();
	
	if(str) {
		CFIndex cStringSize = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
		char cString [cStringSize + 1];
		
		if(!CFStringGetCString(str, cString, cStringSize + 1, kCFStringEncodingUTF8)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFStringGetCString() failed");
			return false;			
		}
		
		MP4TagsSetReleaseDate(tags, cString);
	}
	else
		MP4TagsSetReleaseDate(tags, NULL);
	
	// Composer
	str = GetComposer();
	
	if(str) {
		CFIndex cStringSize = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
		char cString [cStringSize + 1];
		
		if(!CFStringGetCString(str, cString, cStringSize + 1, kCFStringEncodingUTF8)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFStringGetCString() failed");
			return false;			
		}
		
		MP4TagsSetComposer(tags, cString);
	}
	else
		MP4TagsSetComposer(tags, NULL);
	
	// Comment
	str = GetComment();
	
	if(str) {
		CFIndex cStringSize = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
		char cString [cStringSize + 1];
		
		if(!CFStringGetCString(str, cString, cStringSize + 1, kCFStringEncodingUTF8)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFStringGetCString() failed");
			return false;			
		}
		
		MP4TagsSetComments(tags, cString);
	}
	else
		MP4TagsSetComments(tags, NULL);
	
	// Track title
	str = GetTitle();
	
	if(str) {
		CFIndex cStringSize = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
		char cString [cStringSize + 1];
		
		if(!CFStringGetCString(str, cString, cStringSize + 1, kCFStringEncodingUTF8)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFStringGetCString() failed");
			return false;			
		}
		
		MP4TagsSetName(tags, cString);
	}
	else
		MP4TagsSetName(tags, NULL);

	// Track number and total
	MP4TagTrack trackInfo;
	memset(&trackInfo, 0, sizeof(MP4TagTrack));

	if(GetTrackNumber())
		CFNumberGetValue(GetTrackNumber(), kCFNumberSInt32Type, &trackInfo.index);

	if(GetTrackTotal())
		CFNumberGetValue(GetTrackTotal(), kCFNumberSInt32Type, &trackInfo.total);
	
	MP4TagsSetTrack(tags, &trackInfo);

	// Disc number and total
	MP4TagDisk discInfo;
	memset(&discInfo, 0, sizeof(MP4TagDisk));
		
	if(GetDiscNumber())
		CFNumberGetValue(GetDiscNumber(), kCFNumberSInt32Type, &discInfo.index);
	
	if(GetDiscTotal())
		CFNumberGetValue(GetDiscTotal(), kCFNumberSInt32Type, &discInfo.total);
	
	MP4TagsSetDisk(tags, &discInfo);

	// Compilation
	if(GetCompilation()) {
		uint8_t comp = CFBooleanGetValue(GetCompilation());
		MP4TagsSetCompilation(tags, &comp);
	}
	else
		MP4TagsSetCompilation(tags, NULL);

	// Lyrics
	str = GetLyrics();
	
	if(str) {
		CFIndex cStringSize = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
		char cString [cStringSize + 1];
		
		if(!CFStringGetCString(str, cString, cStringSize + 1, kCFStringEncodingUTF8)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFStringGetCString() failed");
			return false;			
		}
		
		MP4TagsSetLyrics(tags, cString);
	}
	else
		MP4TagsSetLyrics(tags, NULL);

	// Album art
	CFDataRef artData = GetFrontCoverArt();
	
	if(artData) {		
		MP4TagArtwork artwork;
		
		artwork.data = reinterpret_cast<void *>(const_cast<UInt8 *>(CFDataGetBytePtr(artData)));
		artwork.size = static_cast<uint32_t>(CFDataGetLength(artData));
		artwork.type = MP4_ART_UNDEFINED;
		
		MP4TagsAddArtwork(tags, &artwork);
	}
	
	// Save our changes
	MP4TagsStore(tags, file);
	
	// Replay Gain
	// Reference loudness
	if(GetReplayGainReferenceLoudness()) {
		float f;
		if(!CFNumberGetValue(GetReplayGainReferenceLoudness(), kCFNumberFloatType, &f)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFStringGetCString() failed");
			return false;
		}

		char value [8];
		snprintf(value, sizeof(value), "%2.1f dB", f);

		MP4ItmfItem *item = MP4ItmfItemAlloc("----", 1);
		if(NULL != item) {
			item->mean = strdup("com.apple.iTunes");
			item->name = strdup("replaygain_reference_loudness");
			
			item->dataList.elements[0].typeCode = MP4_ITMF_BT_UTF8;
			item->dataList.elements[0].value = reinterpret_cast<uint8_t *>(strdup(value));
			item->dataList.elements[0].valueSize = static_cast<uint32_t>(strlen(value));
		}
	}
	else {
		MP4ItmfItemList *items = MP4ItmfGetItemsByMeaning(file, "com.apple.iTunes", "replaygain_reference_loudness");
		if(items) {
			for(uint32_t i = 0; i < items->size; ++i)
				MP4ItmfRemoveItem(file, items->elements + i);
		}
		MP4ItmfItemListFree(items), items = NULL;
	}

	// Track gain
	if(GetReplayGainTrackGain()) {
		float f;
		if(!CFNumberGetValue(GetReplayGainTrackGain(), kCFNumberFloatType, &f)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFNumberGetValue() failed");
			return false;
		}
		
		char value [10];
		snprintf(value, sizeof(value), "%+2.2f dB", f);
		
		MP4ItmfItem *item = MP4ItmfItemAlloc("----", 1);
		if(NULL != item) {
			item->mean = strdup("com.apple.iTunes");
			item->name = strdup("replaygain_track_gain");
			
			item->dataList.elements[0].typeCode = MP4_ITMF_BT_UTF8;
			item->dataList.elements[0].value = reinterpret_cast<uint8_t *>(strdup(value));
			item->dataList.elements[0].valueSize = static_cast<uint32_t>(strlen(value));
		}
	}
	else {
		MP4ItmfItemList *items = MP4ItmfGetItemsByMeaning(file, "com.apple.iTunes", "replaygain_track_gain");
		if(items) {
			for(uint32_t i = 0; i < items->size; ++i)
				MP4ItmfRemoveItem(file, items->elements + i);
		}
		MP4ItmfItemListFree(items), items = NULL;
	}

	// Track peak
	if(GetReplayGainTrackPeak()) {
		float f;
		if(!CFNumberGetValue(GetReplayGainTrackPeak(), kCFNumberFloatType, &f)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFNumberGetValue() failed");
			return false;
		}
		
		char value [12];
		snprintf(value, sizeof(value), "%1.8f", f);
		
		MP4ItmfItem *item = MP4ItmfItemAlloc("----", 1);
		if(NULL != item) {
			item->mean = strdup("com.apple.iTunes");
			item->name = strdup("replaygain_track_peak");
			
			item->dataList.elements[0].typeCode = MP4_ITMF_BT_UTF8;
			item->dataList.elements[0].value = reinterpret_cast<uint8_t *>(strdup(value));
			item->dataList.elements[0].valueSize = static_cast<uint32_t>(strlen(value));
		}
	}
	else {
		MP4ItmfItemList *items = MP4ItmfGetItemsByMeaning(file, "com.apple.iTunes", "replaygain_track_peak");
		if(items) {
			for(uint32_t i = 0; i < items->size; ++i)
				MP4ItmfRemoveItem(file, items->elements + i);
		}
		MP4ItmfItemListFree(items), items = NULL;
	}

	// Album gain
	if(GetReplayGainAlbumGain()) {
		float f;
		if(!CFNumberGetValue(GetReplayGainAlbumGain(), kCFNumberFloatType, &f)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFNumberGetValue() failed");
			return false;
		}
		
		char value [10];
		snprintf(value, sizeof(value), "%+2.2f dB", f);
		
		MP4ItmfItem *item = MP4ItmfItemAlloc("----", 1);
		if(NULL != item) {
			item->mean = strdup("com.apple.iTunes");
			item->name = strdup("replaygain_album_gain");
			
			item->dataList.elements[0].typeCode = MP4_ITMF_BT_UTF8;
			item->dataList.elements[0].value = reinterpret_cast<uint8_t *>(strdup(value));
			item->dataList.elements[0].valueSize = static_cast<uint32_t>(strlen(value));
		}
	}
	else {
		MP4ItmfItemList *items = MP4ItmfGetItemsByMeaning(file, "com.apple.iTunes", "replaygain_album_gain");
		if(items) {
			for(uint32_t i = 0; i < items->size; ++i)
				MP4ItmfRemoveItem(file, items->elements + i);
		}
		MP4ItmfItemListFree(items), items = NULL;
	}
	
	// Album peak
	if(GetReplayGainAlbumPeak()) {
		float f;
		if(!CFNumberGetValue(GetReplayGainAlbumPeak(), kCFNumberFloatType, &f)) {
			log4cxx::LoggerPtr logger = log4cxx::Logger::getLogger("org.sbooth.AudioEngine.AudioMetadata.MP4");
			LOG4CXX_WARN(logger, "CFNumberGetValue() failed");
			return false;
		}
		
		char value [12];
		snprintf(value, sizeof(value), "%1.8f", f);
		
		MP4ItmfItem *item = MP4ItmfItemAlloc("----", 1);
		if(NULL != item) {
			item->mean = strdup("com.apple.iTunes");
			item->name = strdup("replaygain_album_peak");
			
			item->dataList.elements[0].typeCode = MP4_ITMF_BT_UTF8;
			item->dataList.elements[0].value = reinterpret_cast<uint8_t *>(strdup(value));
			item->dataList.elements[0].valueSize = static_cast<uint32_t>(strlen(value));
		}
	}
	else {
		MP4ItmfItemList *items = MP4ItmfGetItemsByMeaning(file, "com.apple.iTunes", "replaygain_album_peak");
		if(items) {
			for(uint32_t i = 0; i < items->size; ++i)
				MP4ItmfRemoveItem(file, items->elements + i);
		}
		MP4ItmfItemListFree(items), items = NULL;
	}

	// Clean up
	MP4TagsFree(tags), tags = NULL;
	MP4Close(file), file = NULL;

	MergeChangedMetadataIntoMetadata();
	
	return true;
}