allanger/paulxstretch
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Resample unprocessed source sound as needed

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This commit is contained in:
xenakios 2018-02-21 20:16:07 +02:00
parent 3b6e309232
commit 715a753893
1 changed files with 11 additions and 3 deletions
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14
Source/PS_Source/StretchSource.cpp
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@ -167,6 +167,7 @@ void StretchAudioSource::setPreviewDry(bool b)
return;
if (m_cs.tryEnter())
{
m_resampler->Reset();
m_preview_dry = b;
++m_param_change_count;
m_cs.exit();
@ -185,10 +186,17 @@ void StretchAudioSource::getNextAudioBlock(const AudioSourceChannelInfo & buffer
if (m_preview_dry == true && m_inputfile!=nullptr && m_inputfile->info.nsamples>0)
{
m_inputfile->setXFadeLenSeconds(m_loopxfadelen);
m_inputfile->readNextBlock(m_drypreviewbuf, bufferToFill.numSamples, m_num_outchans);
double* rsinbuf = nullptr;
m_resampler->SetRates(m_inputfile->info.samplerate, m_outsr);
int wanted = m_resampler->ResamplePrepare(bufferToFill.numSamples, m_num_outchans, &rsinbuf);
m_inputfile->readNextBlock(m_drypreviewbuf, wanted, m_num_outchans);
for (int i = 0; i < wanted; ++i)
for (int j = 0; j < m_num_outchans; ++j)
rsinbuf[i*m_num_outchans + j] = m_drypreviewbuf.getSample(j, i);
m_resampler->ResampleOut(m_resampler_outbuf.data(), wanted, bufferToFill.numSamples, m_num_outchans);
for (int i = 0; i < m_num_outchans; ++i)
bufferToFill.buffer->copyFrom(i, bufferToFill.startSample, m_drypreviewbuf, i, 0, bufferToFill.numSamples);
bufferToFill.buffer->applyGain(bufferToFill.startSample, bufferToFill.numSamples, maingain);
for (int j = 0; j < bufferToFill.numSamples; ++j)
bufferToFill.buffer->setSample(i, j+bufferToFill.startSample, maingain * m_resampler_outbuf[j*m_num_outchans + i]);
return;
}
if (m_pause_state == 2)