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#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "sfont.h"
#include "audiofile/audiofile.h"
namespace FluidS {
//---------------------------------------------------------
// decompressOggVorbis
//---------------------------------------------------------
bool Sample::decompressOggVorbis(char* src, unsigned int size)
{
AudioFile af;
QByteArray ba(src, size);
start = 0;
end = 0;
if (!af.open(ba)) {
qWarning("SoundFont(%s) Sample(%s) decompressOggVorbis: open failed: %s", qPrintable(sf->get_name()), name, af.error());
return false;
}
unsigned int frames = af.frames();
data = new short[frames * af.channels()];
if (frames != (unsigned int)af.readData(data, frames)) {
qWarning("SoundFont(%s) Sample(%s) read failed: %s", qPrintable(sf->get_name()), name, af.error());
delete[] data;
data = 0;
return false;
}
// cf. https://musescore.org/en/node/89216#comment-1068379 and following
end = frames;
// try to fixup start<loopstart<loopend<end similar to recent FluidSynth;
// some of these are technically invalid but exist in the field; see the
// SoundFont 2.04 spec-related diagnostic about this in sfont.cpp
if (loopstart == loopend) {
// normalise to ensure they are within the sample, even non-looped
loopstart = loopend = start;
}
else if (loopstart > loopend) {
unsigned int looptmp;
qWarning("SoundFont(%s) Sample(%s) swapping reversed loopstart<=>loopend",
qPrintable(sf->get_name()), name);
looptmp = loopstart;
loopstart = loopend;
loopend = looptmp;
}
// ensure they are at least within the sample
if (loopstart < start || loopstart > end) {
qWarning("SoundFont(%s) Sample(%s) loopstart(%u) out of bounds [start=%u end=%u], setting to start",
qPrintable(sf->get_name()), name, loopstart, start, end);
loopstart = start;
}
if (loopend < start || loopend > end) {
qWarning("SoundFont(%s) Sample(%s) loopend(%u) out of bounds [start=%u end=%u], setting to end",
qPrintable(sf->get_name()), name, loopend, start, end);
loopstart = end;
}
// ensure it can even play
if ((end - start) < 8) {
qWarning("SoundFont(%s) Sample(%s) too small, disabling", qPrintable(sf->get_name()), name);
return false;
}
return true;
}
} // namespace
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