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Fix edge-case pre-roll required for looping

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This is mainly for the benefit of Mixbus, where input_latency
is not propagated upwards from the master bus (no direct
connection).

In Ardour's case _worst_input_latency >= _worst_route_latency
unless a given track with latent plugin is not connected.

Previously looping became out of sync (normal playback was not
affected) when a track had a latent plugin.
This commit is contained in:
Robin Gareus 2024-08-14 21:50:04 +02:00
parent 803ff507ab
commit 8a8ae7069e
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1 changed files with 1 additions and 1 deletions
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2
libs/ardour/session_transport.cc
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@ -1728,7 +1728,7 @@ Session::worst_latency_preroll () const
samplecnt_t samplecnt_t
Session::worst_latency_preroll_buffer_size_ceil () const Session::worst_latency_preroll_buffer_size_ceil () const
{ {
return lrintf (ceil ((_worst_output_latency + _worst_input_latency) / (float) current_block_size) * current_block_size); return lrintf (ceil ((_worst_output_latency + max (_worst_route_latency, _worst_input_latency)) / (float) current_block_size) * current_block_size);
} }
void void