Method apply

core/src/core/overlap_save_convolution_effect.cpp:140–179

}

AudioEffectState OverlapSaveConvolutionEffect::apply(const OverlapSaveConvolutionEffectParams& params,
                                                     const AudioBuffer& in,
                                                     AudioBuffer& out)
{
    assert(in.numSamples() == out.numSamples());
    assert(in.numChannels() == 1);
    assert(out.numChannels() == mNumChannels);

    PROFILE_FUNCTION();

    auto crossfade = apply(params, in);

    for (auto i = 0; i < params.numChannels; ++i)
    {
        mFFT.applyInverse(mFFTWet[i], mWet[i]);
    }

    if (crossfade)
    {
        for (auto i = 0; i < params.numChannels; ++i)
        {
            mFFT.applyInverse(mPrevFFTWet[i], mPrevWet[i]);

            for (auto j = 0; j < mFrameSize; ++j)
            {
                auto weight = static_cast<float>(j) / static_cast<float>(mFrameSize);
                mWet[i][j + mFrameSize] = (1.0f - weight) * mPrevWet[i][j + mFrameSize] + weight * mWet[i][j + mFrameSize];
            }
        }
    }

    out.makeSilent();

    for (auto i = 0; i < params.numChannels; ++i)
    {
        memcpy(out[i], &mWet[i][mFrameSize], mFrameSize * sizeof(float));
    }

    return (mNumTailBlocksRemaining > 0) ? AudioEffectState::TailRemaining : AudioEffectState::TailComplete;
}

AudioEffectState OverlapSaveConvolutionEffect::apply(const OverlapSaveConvolutionEffectParams& params,
                                                     const AudioBuffer& in,