ardour/livetrax
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clear [midi] plugin audio output buffers before running plugin.

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some samplers don't zero the output buffers if they're not configured
or no samples are loaded.
This commit is contained in:
Robin Gareus 2016-04-19 20:39:40 +02:00
parent 3715602ea7
commit 24282065aa
1 changed files with 9 additions and 1 deletions
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10
libs/ardour/plugin_insert.cc
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@ -635,10 +635,18 @@ PluginInsert::connect_and_run (BufferSet& bufs, pframes_t nframes, framecnt_t of
for (uint32_t out = 0; out < bufs.count().get (*t); ++out) {
bool valid;
uint32_t in_idx = thru_map.get (*t, out, &valid);
uint32_t m = out + natural_input_streams ().get (*t);
if (valid) {
uint32_t m = out + natural_input_streams ().get (*t);
_delaybuffers.delay (*t, out, inplace_bufs.get (*t, m), bufs.get (*t, in_idx), nframes, offset, offset);
used_outputs.set (*t, out, 1); // mark as used
} else {
used_outputs.get (*t, out, &valid);
if (valid) {
/* the plugin is expected to write here, but may not :(
* (e.g. drumgizmo w/o kit loaded)
*/
inplace_bufs.get (*t, m).silence (nframes);
}
}
}
}