ardour/livetrax
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experimental support for AU sidechain busses

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some plugins include a sidechain bus which is not explicitly
listed under "Reported Channel Capabilities" list,
nor the "Input/Output Channel Handling"
This commit is contained in:
Robin Gareus 2016-07-04 03:56:26 +02:00
parent a373e4cfc8
commit ed5cd83c63
1 changed files with 16 additions and 1 deletions
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17
libs/ardour/audio_unit.cc
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@ -1256,7 +1256,22 @@ AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out, Cha
return false;
}
vector<pair<int,int> >& io_configs = pinfo->cache.io_configs;
vector<pair<int,int> > io_configs = pinfo->cache.io_configs;
if (input_elements > 1) {
const vector<pair<int,int> >& ioc (pinfo->cache.io_configs);
for (vector<pair<int,int> >::const_iterator i = ioc.begin(); i != ioc.end(); ++i) {
int32_t possible_in = i->first;
int32_t possible_out = i->second;
if (possible_in <= 1 || possible_out <= 1) {
continue;
}
for (uint32_t i = 1; i < input_elements; ++i) {
// TODO: consider up-to bus_inputs[i]
io_configs.push_back (pair<int,int> (possible_in + bus_inputs[i], possible_out));
}
}
}
DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 has %2 IO configurations, looking for %3 in, %4 out\n",
name(), io_configs.size(), in, out));