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Fix to windowing offsets

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This commit is contained in:
Chris Cannam
2022-08-04 11:19:13 +01:00
parent fe9e86bc3c
commit 5b26e90a58
1 changed files with 9 additions and 8 deletions
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17
src/finer/R3Stretcher.cpp
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@@ -881,15 +881,15 @@ R3Stretcher::analyseChannel(int c, int inhop, int prevInhop, int prevOuthop)
auto &cd = m_channelData.at(c);
int bufSize = cd->windowSource.size();
int sourceSize = cd->windowSource.size();
process_t *buf = cd->windowSource.data();
int readSpace = cd->inbuf->getReadSpace();
if (readSpace < bufSize) {
if (readSpace < sourceSize) {
cd->inbuf->peek(buf, readSpace);
v_zero(buf + readSpace, bufSize - readSpace);
v_zero(buf + readSpace, sourceSize - readSpace);
} else {
cd->inbuf->peek(buf, bufSize);
cd->inbuf->peek(buf, sourceSize);
}
// We have an unwindowed time-domain frame in buf that is as long
@@ -900,12 +900,13 @@ R3Stretcher::analyseChannel(int c, int inhop, int prevInhop, int prevOuthop)
// single-window mode that means we do nothing here, since the
// classification scale is the only one.)
int longest = m_guideConfiguration.longestFftSize;
int classify = m_guideConfiguration.classificationFftSize;
for (auto &it: cd->scales) {
int fftSize = it.first;
if (fftSize == classify) continue;
int offset = (bufSize - fftSize) / 2;
int offset = (longest - fftSize) / 2;
m_scaleData.at(fftSize)->analysisWindow.cut
(buf + offset, it.second->timeDomain.data());
}
@@ -915,9 +916,9 @@ R3Stretcher::analyseChannel(int c, int inhop, int prevInhop, int prevOuthop)
auto &classifyScale = cd->scales.at(classify);
ClassificationReadaheadData &readahead = cd->readahead;
m_scaleData.at(classify)->analysisWindow.cut
(buf + (bufSize - classify) / 2 + inhop,
(buf + (longest - classify) / 2 + inhop,
readahead.timeDomain.data());
// If inhop has changed since the previous frame, we must populate
@@ -930,7 +931,7 @@ R3Stretcher::analyseChannel(int c, int inhop, int prevInhop, int prevOuthop)
if (!haveValidReadahead) {
m_scaleData.at(classify)->analysisWindow.cut
(buf + (bufSize - classify) / 2,
(buf + (longest - classify) / 2,
classifyScale->timeDomain.data());
}