ardour/livetrax
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prevent crash in AudioPlaylist::write() due to lossy time domain convert

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This commit is contained in:
Paul Davis 2023-12-11 16:51:16 -07:00
parent e7cc096d19
commit f184acfb9d
1 changed files with 9 additions and 3 deletions
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12
libs/ardour/audio_playlist.cc
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@ -275,9 +275,15 @@ AudioPlaylist::read (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, ti
samplepos_t read_pos (i->range.start().samples());
samplecnt_t read_cnt (i->range.start().distance (i->range.end()).samples());
assert (start.distance (i->range.start()).samples() < scnt);
assert (start.distance (i->range.start()).samples() + read_cnt <= scnt);
samplecnt_t nread = i->region->read_at (buf + start.distance (i->range.start()).samples(), mixdown_buffer, gain_buffer, read_pos, read_cnt, chan_n);
samplecnt_t soffset = start.distance (i->range.start()).samples();
assert (soffset < scnt);
if (soffset + read_cnt > scnt) {
read_cnt = scnt - soffset;
}
assert (soffset + read_cnt <= scnt);
samplecnt_t nread = i->region->read_at (buf + soffset, mixdown_buffer, gain_buffer, read_pos, read_cnt, chan_n);
if (nread != read_cnt) {
std::cerr << name() << " tried to read " << read_cnt << " from " << nread << " in " << i->region->name() << " using range "
<< i->range.start() << " .. " << i->range.end() << " len " << i->range.length() << std::endl;