ardour/livetrax
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don't bother to re-seek/locate/refill buffers when disk IO processor config changes unless it actually changed

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This commit is contained in:
Paul Davis 2017-07-04 12:13:17 -04:00
parent b0c6273f90
commit 8101d9884f
1 changed files with 7 additions and 1 deletions
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6
libs/ardour/disk_io.cc
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@ -151,20 +151,26 @@ DiskIOProcessor::configure_io (ChanCount in, ChanCount out)
boost::shared_ptr<ChannelList> c = writer.get_copy();
uint32_t n_audio = in.n_audio();
bool changed = false;
if (n_audio > c->size()) {
add_channel_to (c, n_audio - c->size());
changed = true;
} else if (n_audio < c->size()) {
remove_channel_from (c, c->size() - n_audio);
changed = true;
}
if (in.n_midi() > 0 && !_midi_buf) {
const size_t size = _session.butler()->midi_diskstream_buffer_size();
_midi_buf = new MidiRingBuffer<framepos_t>(size);
midi_interpolation.add_channel_to (0,0);
changed = true;
}
if (changed) {
seek (_session.transport_frame());
}
return Processor::configure_io (in, out);
}