TargetFileCoreAudio::TargetFileCoreAudio( const DataTargetRef &dataTarget, size_t sampleRate, size_t numChannels, SampleType sampleType, const std::string &extension )
: TargetFile( dataTarget, sampleRate, numChannels, sampleType )
{
::CFURLRef targetUrl = ci::cocoa::createCfUrl( Url( dataTarget->getFilePath().string() ) );
::AudioFileTypeID fileType = getFileTypeIdFromExtension( extension );
::AudioStreamBasicDescription fileAsbd;
switch( mSampleType ) {
case SampleType::INT_16:
fileAsbd = createInt16Asbd( mSampleRate, mNumChannels, true );
break;
case SampleType::FLOAT_32:
fileAsbd = createFloatAsbd( mSampleRate, mNumChannels, true );
break;
default:
CI_ASSERT_NOT_REACHABLE();
}
::ExtAudioFileRef audioFile;
OSStatus status = ::ExtAudioFileCreateWithURL( targetUrl, fileType, &fileAsbd, nullptr, kAudioFileFlags_EraseFile, &audioFile );
if( status == kAudioFileUnsupportedDataFormatError )
throw AudioFileExc( string( "Extended Audio File Services: Unsupported format error, target file: " ) + dataTarget->getFilePath().string(), (int32_t)status );
else if( status != noErr )
throw AudioFileExc( string( "Extended Audio File Services faild: target file: " ) + dataTarget->getFilePath().string(), (int32_t)status );
::CFRelease( targetUrl );
mExtAudioFile = ExtAudioFilePtr( audioFile );
::AudioStreamBasicDescription clientAsbd = createFloatAsbd( mSampleRate, mNumChannels, false );
status = ::ExtAudioFileSetProperty( mExtAudioFile.get(), kExtAudioFileProperty_ClientDataFormat, sizeof( clientAsbd ), &clientAsbd );
CI_VERIFY( status == noErr );
mBufferList = createNonInterleavedBufferListShallow( mNumChannels );
}
size_t SourceFileOggVorbis::performRead( Buffer *buffer, size_t bufferFrameOffset, size_t numFramesNeeded )
{
CI_ASSERT( buffer->getNumFrames() >= bufferFrameOffset + numFramesNeeded );
size_t readCount = 0;
while( readCount < numFramesNeeded ) {
float **outChannels;
int section;
long outNumFrames = ov_read_float( &mOggVorbisFile, &outChannels, int( numFramesNeeded - readCount ), §ion );
if( outNumFrames <= 0 ) {
if( outNumFrames < 0 )
throw AudioFileExc( "ov_read_float error", (int32_t)outNumFrames );
break;
}
size_t offset = bufferFrameOffset + readCount;
for( size_t ch = 0; ch < mNumChannels; ch++ )
memcpy( buffer->getChannel( ch ) + offset, outChannels[ch], outNumFrames * sizeof( float ) );
readCount += outNumFrames;
}
return static_cast<size_t>( readCount );
}
void SourceFileOggVorbis::init()
{
CI_ASSERT( mDataSource );
#if ! defined( CINDER_ANDROID )
if( mDataSource->isFilePath() ) {
int status = ov_fopen( mDataSource->getFilePath().string().c_str(), &mOggVorbisFile );
if( status )
throw AudioFileExc( string( "Failed to open Ogg Vorbis file with error: " ), (int32_t)status );
}
else {
#endif
mStream = mDataSource->createStream();
ov_callbacks callbacks;
callbacks.read_func = readFn;
callbacks.seek_func = seekFn;
callbacks.close_func = closeFn;
callbacks.tell_func = tellFn;
int status = ov_open_callbacks( this, &mOggVorbisFile, NULL, 0, callbacks );
CI_VERIFY( status == 0 );
#if ! defined( CINDER_ANDROID )
}
#endif
vorbis_info *info = ov_info( &mOggVorbisFile, -1 );
mNumChannels = info->channels;
mSampleRate = info->rate;
ogg_int64_t totalFrames = ov_pcm_total( &mOggVorbisFile, -1 );
mNumFrames = mFileNumFrames = static_cast<uint32_t>( totalFrames );
}
::AudioFileTypeID TargetFileCoreAudio::getFileTypeIdFromExtension( const std::string &ext )
{
if( ext == "aiff" )
return kAudioFileAIFFType;
else if( ext == "wav" )
return kAudioFileWAVEType;
else if( ext == "mp3" )
return kAudioFileMP3Type;
else if( ext == "m4a" )
return kAudioFileM4AType;
else if( ext == "aac" )
return kAudioFileAAC_ADTSType;
throw AudioFileExc( string( "TargetFileCoreAudio: unexpected extension '" ) + ext + "'" );
}
void SourceFileCoreAudio::initImpl()
{
::CFURLRef fileUrl = ci::cocoa::createCfUrl( Url( mDataSource->getFilePath().string() ) );
::ExtAudioFileRef audioFile;
OSStatus status = ::ExtAudioFileOpenURL( fileUrl, &audioFile );
if( status != noErr ) {
string urlString = ci::cocoa::convertCfString( CFURLGetString( fileUrl ) );
throw AudioFileExc( string( "could not open audio source file: " ) + urlString, (int32_t)status );
}
mExtAudioFile = ExtAudioFilePtr( audioFile );
::AudioStreamBasicDescription fileFormat;
UInt32 propSize = sizeof( fileFormat );
status = ::ExtAudioFileGetProperty( audioFile, kExtAudioFileProperty_FileDataFormat, &propSize, &fileFormat );
CI_VERIFY( status == noErr );
mNumChannels = fileFormat.mChannelsPerFrame;
mSampleRateNative = fileFormat.mSampleRate;
size_t outputSampleRate = getSampleRate(); // may be 0 at init
if( ! outputSampleRate )
outputSampleRate = mSampleRateNative;
SInt64 numFrames;
propSize = sizeof( numFrames );
status = ::ExtAudioFileGetProperty( audioFile, kExtAudioFileProperty_FileLengthFrames, &propSize, &numFrames );
CI_VERIFY( status == noErr );
mNumFrames = mFileNumFrames = static_cast<size_t>( numFrames );
::AudioStreamBasicDescription outputFormat = audio::cocoa::createFloatAsbd( outputSampleRate, mNumChannels );
status = ::ExtAudioFileSetProperty( mExtAudioFile.get(), kExtAudioFileProperty_ClientDataFormat, sizeof( outputFormat ), &outputFormat );
CI_VERIFY( status == noErr );
// numFrames will be updated at read time
mBufferList = createNonInterleavedBufferListShallow( mNumChannels );
}
TargetFileMediaFoundation::TargetFileMediaFoundation( const DataTargetRef &dataTarget, size_t sampleRate, size_t numChannels, SampleType sampleType, const std::string &extension )
: TargetFile( dataTarget, sampleRate, numChannels, sampleType ), mStreamIndex( 0 )
{
MediaFoundationInitializer::initMediaFoundation();
::IMFSinkWriter *sinkWriter;
HRESULT hr = ::MFCreateSinkWriterFromURL( dataTarget->getFilePath().wstring().c_str(), NULL, NULL, &sinkWriter );
if( hr != S_OK ) {
string errorString = string( "TargetFileMediaFoundation: Failed to create SinkWriter from URL: " ) + dataTarget->getFilePath().string();
if( hr == HRESULT_FROM_WIN32( ERROR_FILE_NOT_FOUND ) )
errorString += ", file not found.";
throw AudioFileExc( errorString );
}
mSinkWriter = ci::msw::makeComUnique( sinkWriter );
mSampleSize = getBytesPerSample( mSampleType );
const UINT32 bitsPerSample = 8 * mSampleSize;
const WORD blockAlignment = mNumChannels * mSampleSize;
const DWORD averageBytesPerSecond = mSampleRate * blockAlignment;
// Set the output media type.
IMFMediaType *mediaType;
hr = ::MFCreateMediaType( &mediaType );
CI_ASSERT( hr == S_OK );
auto mediaTypeManaged = ci::msw::makeComUnique( mediaType );
hr = mediaType->SetGUID( MF_MT_MAJOR_TYPE, MFMediaType_Audio );
CI_ASSERT( hr == S_OK );
const ::GUID audioFormat = getMfAudioFormat( mSampleType );
hr = mediaType->SetGUID( MF_MT_SUBTYPE, audioFormat );
CI_ASSERT( hr == S_OK );
hr = mediaType->SetUINT32( MF_MT_AUDIO_SAMPLES_PER_SECOND, (UINT32)mSampleRate );
CI_ASSERT( hr == S_OK );
hr = mediaType->SetUINT32( MF_MT_AUDIO_BITS_PER_SAMPLE, bitsPerSample );
CI_ASSERT( hr == S_OK );
hr = mediaType->SetUINT32( MF_MT_AUDIO_BLOCK_ALIGNMENT, blockAlignment );
CI_ASSERT( hr == S_OK );
hr = mediaType->SetUINT32( MF_MT_AUDIO_AVG_BYTES_PER_SECOND, averageBytesPerSecond );
CI_ASSERT( hr == S_OK );
hr = mediaType->SetUINT32( MF_MT_AUDIO_NUM_CHANNELS, (UINT32)mNumChannels );
CI_ASSERT( hr == S_OK );
hr = mediaType->SetUINT32( MF_MT_ALL_SAMPLES_INDEPENDENT, 1 );
CI_ASSERT( hr == S_OK );
hr = mediaType->SetUINT32( MF_MT_FIXED_SIZE_SAMPLES, 1 );
CI_ASSERT( hr == S_OK );
hr = mSinkWriter->AddStream( mediaType, &mStreamIndex );
CI_ASSERT( hr == S_OK );
// Tell the sink writer to start accepting data.
hr = mSinkWriter->BeginWriting();
CI_ASSERT( hr == S_OK );
}
// TODO: test setting MF_LOW_LATENCY attribute
void SourceFileMediaFoundation::initReader()
{
CI_ASSERT( mDataSource );
mFramesRemainingInReadBuffer = 0;
::IMFAttributes *attributes;
HRESULT hr = ::MFCreateAttributes( &attributes, 1 );
CI_ASSERT( hr == S_OK );
auto attributesPtr = ci::msw::makeComUnique( attributes );
::IMFSourceReader *sourceReader;
if( mDataSource->isFilePath() ) {
hr = ::MFCreateSourceReaderFromURL( mDataSource->getFilePath().wstring().c_str(), attributesPtr.get(), &sourceReader );
if( hr != S_OK ) {
string errorString = string( "SourceFileMediaFoundation: Failed to create SourceReader from URL: " ) + mDataSource->getFilePath().string();
if( hr == HRESULT_FROM_WIN32( ERROR_FILE_NOT_FOUND ) )
errorString += ", file not found.";
throw AudioFileExc( errorString );
}
}
else {
mComIStream = ci::msw::makeComUnique( new ci::msw::ComIStream( mDataSource->createStream() ) );
::IMFByteStream *byteStream;
hr = ::MFCreateMFByteStreamOnStream( mComIStream.get(), &byteStream );
CI_ASSERT( hr == S_OK );
mByteStream = ci::msw::makeComUnique( byteStream );
hr = ::MFCreateSourceReaderFromByteStream( byteStream, attributesPtr.get(), &sourceReader );
if( hr != S_OK )
throw AudioFileExc( "SourceFileMediaFoundation: Failed to create SourceReader from resource." );
}
mSourceReader = ci::msw::makeComUnique( sourceReader );
// get files native format
::IMFMediaType *nativeType;
::WAVEFORMATEX *nativeFormat;
UINT32 formatSize;
hr = mSourceReader->GetNativeMediaType( MF_SOURCE_READER_FIRST_AUDIO_STREAM, 0, &nativeType );
CI_ASSERT( hr == S_OK );
auto nativeTypeUnique = ci::msw::makeComUnique( nativeType );
hr = ::MFCreateWaveFormatExFromMFMediaType( nativeType, &nativeFormat, &formatSize );
CI_ASSERT( hr == S_OK );
mNumChannels = nativeFormat->nChannels;
mSampleRate = nativeFormat->nSamplesPerSec;
GUID outputSubType = MFAudioFormat_PCM; // default to PCM 16-bit int, upgrade if we can.
mSampleType = SampleType::INT_16;
if( nativeFormat->wBitsPerSample == 32 ) {
mSampleType = SampleType::FLOAT_32;
outputSubType = MFAudioFormat_Float;
}
else if( nativeFormat->wBitsPerSample == 24 ) {
mSampleType = SampleType::INT_24;
if( mNumChannels > 1 )
mBitConverterBuffer.setSize( getMaxFramesPerRead(), mNumChannels );
}
::CoTaskMemFree( nativeFormat );
mBytesPerSample = getBytesPerSample( mSampleType );
mReadBuffer.setSize( getMaxFramesPerRead(), mNumChannels );
// set output type, which loads the proper decoder:
::IMFMediaType *outputType;
hr = ::MFCreateMediaType( &outputType );
auto outputTypeRef = ci::msw::makeComUnique( outputType );
hr = outputTypeRef->SetGUID( MF_MT_MAJOR_TYPE, MFMediaType_Audio );
CI_ASSERT( hr == S_OK );
hr = outputTypeRef->SetGUID( MF_MT_SUBTYPE, outputSubType );
CI_ASSERT( hr == S_OK );
hr = mSourceReader->SetCurrentMediaType( MF_SOURCE_READER_FIRST_AUDIO_STREAM, 0, outputTypeRef.get() );
CI_ASSERT( hr == S_OK );
// after the decoder is loaded, we have to now get the 'complete' output type before retrieving its format
::IMFMediaType *completeOutputType;
hr = mSourceReader->GetCurrentMediaType( MF_SOURCE_READER_FIRST_AUDIO_STREAM, &completeOutputType );
CI_ASSERT( hr == S_OK );
::WAVEFORMATEX *format;
hr = ::MFCreateWaveFormatExFromMFMediaType( completeOutputType, &format, &formatSize );
CI_ASSERT( hr == S_OK );
::CoTaskMemFree( format );
// get seconds:
::PROPVARIANT durationProp;
hr = mSourceReader->GetPresentationAttribute( MF_SOURCE_READER_MEDIASOURCE, MF_PD_DURATION, &durationProp );
CI_ASSERT( hr == S_OK );
LONGLONG duration = durationProp.uhVal.QuadPart;
mSeconds = nanoSecondsToSeconds( duration );
mNumFrames = mFileNumFrames = size_t( mSeconds * (double)mSampleRate );
::PROPVARIANT seekProp;
hr = mSourceReader->GetPresentationAttribute( MF_SOURCE_READER_MEDIASOURCE, MF_SOURCE_READER_MEDIASOURCE_CHARACTERISTICS, &seekProp );
CI_ASSERT( hr == S_OK );
ULONG flags = seekProp.ulVal;
mCanSeek = ( ( flags & MFMEDIASOURCE_CAN_SEEK ) == MFMEDIASOURCE_CAN_SEEK );
}
