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bug 1188704 remove now unused PerformInverseFFT() variation r=rillian

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--HG--
extra : rebase_source : 13b3cfce3054fce463d0e2407bd48e343952830e
This commit is contained in:
Karl Tomlinson 2015-07-30 12:51:48 +12:00
parent a4757ceda3
commit 66f210c5b0
1 changed files with 0 additions and 41 deletions
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41
dom/media/webaudio/FFTBlock.h
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@ -133,47 +133,6 @@ public:
}
#endif
}
// Inverse-transform the FFTSize()/2+1 points of data in each
// of aRealDataIn and aImagDataIn and store the resulting
// FFTSize() points in aRealDataOut.
void PerformInverseFFT(float* aRealDataIn,
float *aImagDataIn,
float *aRealDataOut)
{
EnsureIFFT();
const uint32_t inputSize = mFFTSize / 2 + 1;
#if defined(MOZ_LIBAV_FFT)
AlignedTArray<FFTSample> inputBuffer(inputSize * 2);
for (uint32_t i = 0; i < inputSize; ++i) {
inputBuffer[2*i] = aRealDataIn[i];
inputBuffer[(2*i)+1] = aImagDataIn[i];
}
av_rdft_calc(mAvIRDFT, inputBuffer.Elements());
PodCopy(aRealDataOut, inputBuffer.Elements(), FFTSize());
// TODO: Once bug 877662 lands, change this to use SSE.
for (uint32_t i = 0; i < mFFTSize; ++i) {
aRealDataOut[i] /= mFFTSize;
}
#else
AlignedTArray<ComplexU> inputBuffer(inputSize);
for (uint32_t i = 0; i < inputSize; ++i) {
inputBuffer[i].r = aRealDataIn[i];
inputBuffer[i].i = aImagDataIn[i];
}
#if defined(BUILD_ARM_NEON)
if (mozilla::supports_neon()) {
omxSP_FFTInv_CCSToR_F32_Sfs(inputBuffer.Elements()->f,
aRealDataOut, mOmxIFFT);
} else
#endif
{
kiss_fftri(mKissIFFT, &(inputBuffer.Elements()->c), aRealDataOut);
for (uint32_t i = 0; i < mFFTSize; ++i) {
aRealDataOut[i] /= mFFTSize;
}
}
#endif
}
void Multiply(const FFTBlock& aFrame)
{