CASpeexDecoder::CASpeexDecoder(Boolean inSkipFormatsInitialization /* = false */) :
mCookie(NULL), mCookieSize(0), mCompressionInitialized(false),
mOutBuffer(NULL), mOutBufferSize(0), mOutBufferUsedSize(0), mOutBufferStart(0),
mSpeexFPList(),
mNumFrames(0),
mSpeexDecoderState(NULL)
{
mSpeexStereoState.balance = 1.0;
mSpeexStereoState.e_ratio = 0.5;
mSpeexStereoState.smooth_left = 1.0;
mSpeexStereoState.smooth_right = 1.0;
if (inSkipFormatsInitialization)
return;
CAStreamBasicDescription theInputFormat(kAudioStreamAnyRate, kAudioFormatXiphSpeex,
kSpeexBytesPerPacket, kSpeexFramesPerPacket,
kSpeexBytesPerFrame, kSpeexChannelsPerFrame,
kSpeexBitsPerChannel, kSpeexFormatFlags);
AddInputFormat(theInputFormat);
mInputFormat.mSampleRate = 44100;
mInputFormat.mFormatID = kAudioFormatXiphSpeex;
mInputFormat.mFormatFlags = kSpeexFormatFlags;
mInputFormat.mBytesPerPacket = kSpeexBytesPerPacket;
mInputFormat.mFramesPerPacket = kSpeexFramesPerPacket;
mInputFormat.mBytesPerFrame = kSpeexBytesPerFrame;
mInputFormat.mChannelsPerFrame = 2;
mInputFormat.mBitsPerChannel = 16;
CAStreamBasicDescription theOutputFormat1(kAudioStreamAnyRate, kAudioFormatLinearPCM, 0, 1, 0, 0, 16,
kAudioFormatFlagsNativeEndian |
kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked);
AddOutputFormat(theOutputFormat1);
CAStreamBasicDescription theOutputFormat2(kAudioStreamAnyRate, kAudioFormatLinearPCM, 0, 1, 0, 0, 32,
kAudioFormatFlagsNativeFloatPacked);
AddOutputFormat(theOutputFormat2);
mOutputFormat.mSampleRate = 44100;
mOutputFormat.mFormatID = kAudioFormatLinearPCM;
mOutputFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
mOutputFormat.mBytesPerPacket = 8;
mOutputFormat.mFramesPerPacket = 1;
mOutputFormat.mBytesPerFrame = 8;
mOutputFormat.mChannelsPerFrame = 2;
mOutputFormat.mBitsPerChannel = 32;
}
CAOggFLACDecoder::CAOggFLACDecoder() :
CAFLACDecoder(true),
mFramesBufferedList(),
complete_pages(0)
{
CAStreamBasicDescription theInputFormat(kAudioStreamAnyRate, kAudioFormatXiphOggFramedFLAC,
kFLACBytesPerPacket, kFLACFramesPerPacket,
kFLACBytesPerFrame, kFLACChannelsPerFrame,
kFLACBitsPerChannel, kFLACFormatFlags);
AddInputFormat(theInputFormat);
mInputFormat.mSampleRate = 44100;
mInputFormat.mFormatID = kAudioFormatXiphOggFramedFLAC;
mInputFormat.mFormatFlags = kFLACFormatFlags;
mInputFormat.mBytesPerPacket = kFLACBytesPerPacket;
mInputFormat.mFramesPerPacket = kFLACFramesPerPacket;
mInputFormat.mBytesPerFrame = kFLACBytesPerFrame;
mInputFormat.mChannelsPerFrame = 2;
mInputFormat.mBitsPerChannel = kFLACBitsPerChannel;
CAStreamBasicDescription theOutputFormat1(kAudioStreamAnyRate, kAudioFormatLinearPCM, 0, 1, 0, 0, 16,
kAudioFormatFlagsNativeEndian |
kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked);
AddOutputFormat(theOutputFormat1);
CAStreamBasicDescription theOutputFormat2(kAudioStreamAnyRate, kAudioFormatLinearPCM, 0, 1, 0, 0, 32,
kAudioFormatFlagsNativeFloatPacked);
AddOutputFormat(theOutputFormat2);
mOutputFormat.mSampleRate = 44100;
mOutputFormat.mFormatID = kAudioFormatLinearPCM;
mOutputFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
mOutputFormat.mBytesPerPacket = 8;
mOutputFormat.mFramesPerPacket = 1;
mOutputFormat.mBytesPerFrame = 8;
mOutputFormat.mChannelsPerFrame = 2;
mOutputFormat.mBitsPerChannel = 32;
}
