diff options
Diffstat (limited to 'libs/appleutility/CoreAudio/PublicUtility/CASpectralProcessor.h')
| -rw-r--r-- | libs/appleutility/CoreAudio/PublicUtility/CASpectralProcessor.h | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/libs/appleutility/CoreAudio/PublicUtility/CASpectralProcessor.h b/libs/appleutility/CoreAudio/PublicUtility/CASpectralProcessor.h index d7c285b6a9..7c8b1a7245 100644 --- a/libs/appleutility/CoreAudio/PublicUtility/CASpectralProcessor.h +++ b/libs/appleutility/CoreAudio/PublicUtility/CASpectralProcessor.h @@ -2,14 +2,14 @@ File: CASpectralProcessor.h Abstract: Part of CoreAudio Utility Classes Version: 1.1 - + Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Inc. ("Apple") in consideration of your agreement to the following terms, and your use, installation, modification or redistribution of this Apple software constitutes acceptance of these terms. If you do not agree with these terms, please do not use, install, modify or redistribute this Apple software. - + In consideration of your agreement to abide by the following terms, and subject to these terms, Apple grants you a personal, non-exclusive license, under Apple's copyrights in this original Apple software (the @@ -25,13 +25,13 @@ implied, are granted by Apple herein, including but not limited to any patent rights that may be infringed by your derivative works or by other works in which the Apple Software may be incorporated. - + The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. - + IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS @@ -40,13 +40,13 @@ AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - + Copyright (C) 2014 Apple Inc. All Rights Reserved. - + */ #ifndef _SpectralProcesor_H_ #define _SpectralProcesor_H_ - + #if !defined(__COREAUDIO_USE_FLAT_INCLUDES__) #include <CoreAudio/CoreAudioTypes.h> #include <CoreFoundation/CoreFoundation.h> @@ -65,39 +65,39 @@ struct SpectralBufferList DSPSplitComplex mDSPSplitComplex[1]; }; -class CASpectralProcessor +class CASpectralProcessor { public: CASpectralProcessor(UInt32 inFFTSize, UInt32 inHopSize, UInt32 inNumChannels, UInt32 inMaxFrames); virtual ~CASpectralProcessor(); - + void Reset(); - + void Process(UInt32 inNumFrames, AudioBufferList* inInput, AudioBufferList* outOutput); - + typedef void (*SpectralFunction)(SpectralBufferList* inSpectra, void* inUserData); - + void SetSpectralFunction(SpectralFunction inFunction, void* inUserData); - + UInt32 FFTSize() const { return mFFTSize; } UInt32 MaxFrames() const { return mMaxFrames; } UInt32 NumChannels() const { return mNumChannels; } UInt32 HopSize() const { return mHopSize; } Float32* Window() const { return mWindow; } - - + + void HanningWindow(); // set up a hanning window void SineWindow(); - + void GetFrequencies(Float32* freqs, Float32 sampleRate); // only for processed forward void GetMagnitude(AudioBufferList* inCopy, Float32* min, Float32* max); // only for processed forward - + virtual bool ProcessForwards(UInt32 inNumFrames, AudioBufferList* inInput); bool ProcessBackwards(UInt32 inNumFrames, AudioBufferList* outOutput); void PrintSpectralBufferList(); - + protected: void CopyInput(UInt32 inNumFrames, AudioBufferList* inInput); void CopyInputToFFT(); @@ -107,14 +107,14 @@ protected: void OverlapAddOutput(); void CopyOutput(UInt32 inNumFrames, AudioBufferList* inOutput); void ProcessSpectrum(UInt32 inFFTSize, SpectralBufferList* inSpectra); - + UInt32 mFFTSize; UInt32 mHopSize; UInt32 mNumChannels; UInt32 mMaxFrames; UInt32 mLog2FFTSize; - UInt32 mFFTMask; + UInt32 mFFTMask; UInt32 mFFTByteSize; UInt32 mIOBufSize; UInt32 mIOMask; @@ -126,7 +126,7 @@ protected: FFTSetup mFFTSetup; CAAutoFree<Float32> mWindow; - struct SpectralChannel + struct SpectralChannel { CAAutoFree<Float32> mInputBuf; // log2ceil(FFT size + max frames) CAAutoFree<Float32> mOutputBuf; // log2ceil(FFT size + max frames) @@ -136,10 +136,10 @@ protected: CAAutoArrayDelete<SpectralChannel> mChannels; CAAutoFree<SpectralBufferList> mSpectralBufferList; - + SpectralFunction mSpectralFunction; void *mUserData; - + }; |