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Cache route's output playback latency

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IO::latency iterates over the port-set retrieving the
private_latency_range of each port. The value can cached
since it can only change when connections or latency changes.

see also 40eefeddd6
This commit is contained in:
Robin Gareus 2020-09-22 21:55:49 +02:00
parent bebca37447
commit 2b139ead8d
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GPG key ID: A090BCE02CF57F04
1 changed files with 2 additions and 2 deletions
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libs/ardour/route.cc
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@ -425,7 +425,7 @@ Route::process_output_buffers (BufferSet& bufs,
bool run_disk_writer = false;
if (_disk_writer && speed > 0) {
samplecnt_t latency_preroll = _session.remaining_latency_preroll ();
run_disk_writer = latency_preroll < nframes + (_signal_latency + _output->latency ());
run_disk_writer = latency_preroll < nframes + (_signal_latency + _output_latency);
if (end_sample - _disk_writer->input_latency () < _session.transport_sample ()) {
run_disk_writer = true;
}
@ -3886,7 +3886,7 @@ Route::playback_latency (bool incl_downstream) const
if (incl_downstream) {
rv += _output->connected_latency (true);
} else {
rv += _output->latency ();
rv += _output_latency;
}
return rv;
}