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Constrain to +/- 2 octaves (+ semitones) as it's less demanding of block size; minor tidying

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This commit is contained in:
Chris Cannam
2021-05-14 14:26:52 +01:00
parent a3aff961e4
commit a218ad42fa
4 changed files with 42 additions and 26 deletions
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41
ladspa/RubberBandPitchShifter.cpp
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@@ -112,7 +112,7 @@ RubberBandPitchShifter::hintsMono[PortCountMono] =
LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_INTEGER,
-3.0, 3.0 },
-2.0, 2.0 },
{ LADSPA_HINT_DEFAULT_MAXIMUM | // crispness
LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
@@ -148,7 +148,7 @@ RubberBandPitchShifter::hintsStereo[PortCountStereo] =
LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
LADSPA_HINT_INTEGER,
-3.0, 3.0 },
-2.0, 2.0 },
{ LADSPA_HINT_DEFAULT_MAXIMUM | // crispness
LADSPA_HINT_BOUNDED_BELOW |
LADSPA_HINT_BOUNDED_ABOVE |
@@ -241,7 +241,8 @@ RubberBandPitchShifter::RubberBandPitchShifter(int sampleRate, size_t channels)
m_currentCrispness(-1),
m_currentFormant(false),
m_blockSize(1024),
m_reserve(1024),
m_reserve(8192),
m_bufsize(0),
m_minfill(0),
m_stretcher(new RubberBandStretcher
(sampleRate, channels,
@@ -257,18 +258,20 @@ RubberBandPitchShifter::RubberBandPitchShifter(int sampleRate, size_t channels)
m_delayMixBuffer = new RingBuffer<float> *[m_channels];
m_scratch = new float *[m_channels];
m_bufsize = m_blockSize + m_reserve + 8192;
for (size_t c = 0; c < m_channels; ++c) {
m_input[c] = 0;
m_output[c] = 0;
int bufsize = m_blockSize + m_reserve + 8192;
m_outputBuffer[c] = new RingBuffer<float>(m_bufsize);
m_delayMixBuffer[c] = new RingBuffer<float>(m_bufsize);
m_outputBuffer[c] = new RingBuffer<float>(bufsize);
m_delayMixBuffer[c] = new RingBuffer<float>(bufsize);
m_scratch[c] = new float[bufsize];
for (int i = 0; i < bufsize; ++i) m_scratch[c][i] = 0.f;
m_scratch[c] = new float[m_bufsize];
for (int i = 0; i < m_bufsize; ++i) {
m_scratch[c][i] = 0.f;
}
}
activateImpl();
@@ -367,6 +370,12 @@ RubberBandPitchShifter::activateImpl()
m_delayMixBuffer[c]->reset();
m_delayMixBuffer[c]->zero(getLatency());
}
for (size_t c = 0; c < m_channels; ++c) {
for (int i = 0; i < m_bufsize; ++i) {
m_scratch[c][i] = 0.f;
}
}
m_minfill = 0;
@@ -496,7 +505,7 @@ RubberBandPitchShifter::runImpl(unsigned long insamples, unsigned long offset)
m_stretcher->setPitchScale(m_ratio);
m_prevRatio = m_ratio;
}
/*
if (m_latency) {
float latencyWas = *m_latency;
*m_latency = getLatency();
@@ -506,7 +515,7 @@ RubberBandPitchShifter::runImpl(unsigned long insamples, unsigned long offset)
<< " to " << *m_latency << endl;
}
}
*/
updateCrispness();
updateFormant();
@@ -535,7 +544,7 @@ RubberBandPitchShifter::runImpl(unsigned long insamples, unsigned long offset)
int outchunk = avail;
if (outchunk > writable) {
cerr << "RubberBandPitchShifter::runImpl: buffer is not large enough: chunk = " << outchunk << ", space = " << writable << endl;
cerr << "RubberBandPitchShifter::runImpl: buffer is not large enough: size = " << m_outputBuffer[0]->getSize() << ", chunk = " << outchunk << ", space = " << writable << " (buffer contains " << m_outputBuffer[0]->getReadSpace() << " unread)" << endl;
outchunk = writable;
}
@@ -556,8 +565,12 @@ RubberBandPitchShifter::runImpl(unsigned long insamples, unsigned long offset)
m_outputBuffer[c]->read(&(m_output[c][offset]), chunk);
}
if (m_minfill == 0) {
m_minfill = m_outputBuffer[0]->getReadSpace();
int fill = m_outputBuffer[0]->getReadSpace();
// cerr << "fill = " << fill << endl;
if (fill < m_minfill || m_minfill == 0) {
m_minfill = fill;
cerr << "minfill = " << m_minfill << endl;
}
}

1
ladspa/RubberBandPitchShifter.h
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@@ -102,6 +102,7 @@ protected:
size_t m_blockSize;
size_t m_reserve;
size_t m_bufsize;
size_t m_minfill;
RubberBand::RubberBandStretcher *m_stretcher;

20
src/StretcherImpl.cpp
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@@ -64,7 +64,7 @@ const size_t
RubberBandStretcher::Impl::m_defaultFftSize = 2048;
int
RubberBandStretcher::Impl::m_defaultDebugLevel = 0;
RubberBandStretcher::Impl::m_defaultDebugLevel = 2;
static bool _initialised = false;
@@ -544,8 +544,8 @@ RubberBandStretcher::Impl::calculateSizes()
// ratio) for any chunk.
if (m_debugLevel > 0) {
cerr << "configure: time ratio = " << m_timeRatio << ", pitch scale = " << m_pitchScale << ", effective ratio = " << getEffectiveRatio() << endl;
cerr << "configure: analysis window size = " << m_aWindowSize << ", synthesis window size = " << m_sWindowSize << ", fft size = " << m_fftSize << ", increment = " << m_increment << " (approx output increment = " << int(lrint(m_increment * getEffectiveRatio())) << ")" << endl;
cerr << "calculateSizes: time ratio = " << m_timeRatio << ", pitch scale = " << m_pitchScale << ", effective ratio = " << getEffectiveRatio() << endl;
cerr << "calculateSizes: analysis window size = " << m_aWindowSize << ", synthesis window size = " << m_sWindowSize << ", fft size = " << m_fftSize << ", increment = " << m_increment << " (approx output increment = " << int(lrint(m_increment * getEffectiveRatio())) << ")" << endl;
}
if (std::max(m_aWindowSize, m_sWindowSize) > m_maxProcessSize) {
@@ -575,15 +575,17 @@ RubberBandStretcher::Impl::calculateSizes()
}
if (m_debugLevel > 0) {
cerr << "configure: outbuf size = " << m_outbufSize << endl;
cerr << "calculateSizes: outbuf size = " << m_outbufSize << endl;
}
}
void
RubberBandStretcher::Impl::configure()
{
// std::cerr << "configure[" << this << "]: realtime = " << m_realtime << ", pitch scale = "
// << m_pitchScale << ", channels = " << m_channels << std::endl;
if (m_debugLevel > 0) {
std::cerr << "configure[" << this << "]: realtime = " << m_realtime << ", pitch scale = "
<< m_pitchScale << ", channels = " << m_channels << std::endl;
}
size_t prevFftSize = m_fftSize;
size_t prevAWindowSize = m_aWindowSize;
@@ -745,7 +747,7 @@ RubberBandStretcher::Impl::configure()
// if (!m_realtime) {
if (m_debugLevel > 1) {
cerr << "Not real time mode: prefilling" << endl;
cerr << "Not real time mode: prefilling with " << m_aWindowSize/2 << " samples" << endl;
}
for (size_t c = 0; c < m_channels; ++c) {
m_channelData[c]->reset();
@@ -1373,12 +1375,12 @@ RubberBandStretcher::Impl::process(const float *const *input, size_t samples, bo
}
#endif
if (m_debugLevel > 2) {
if (m_debugLevel > 1) {
if (!allConsumed) cerr << "process looping" << endl;
}
}
if (m_debugLevel > 2) {
if (m_debugLevel > 1) {
cerr << "process returning" << endl;
}

6
src/StretcherProcess.cpp
View File

@@ -284,7 +284,7 @@ RubberBandStretcher::Impl::processChunks(size_t c, bool &any, bool &last)
while (!last) {
if (!testInbufReadSpace(c)) {
if (m_debugLevel > 2) {
if (m_debugLevel > 1) {
cerr << "processChunks: out of input" << endl;
}
break;
@@ -349,7 +349,7 @@ RubberBandStretcher::Impl::processOneChunk()
for (size_t c = 0; c < m_channels; ++c) {
if (!testInbufReadSpace(c)) {
if (m_debugLevel > 2) {
if (m_debugLevel > 1) {
cerr << "processOneChunk: out of input" << endl;
}
return false;
@@ -404,7 +404,7 @@ RubberBandStretcher::Impl::testInbufReadSpace(size_t c)
if (!m_threaded) {
#endif
if (m_debugLevel > 1) {
cerr << "WARNING: RubberBandStretcher: read space < chunk size ("
cerr << "Note: RubberBandStretcher: read space < chunk size ("
<< inbuf.getReadSpace() << " < " << m_aWindowSize
<< ") when not all input written, on processChunks for channel " << c << endl;
}