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Continue export-roll to flush buffers

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This is required when using plugins to write data.
This commit is contained in:
Robin Gareus 2023-12-07 22:45:30 +01:00
parent a13a797600
commit ebc887e33d
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GPG key ID: A090BCE02CF57F04
1 changed files with 21 additions and 13 deletions
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34
libs/ardour/export_handler.cc
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@ -295,11 +295,31 @@ ExportHandler::process_timespan (samplecnt_t samples)
samplecnt_t samples_to_read = 0;
samplepos_t const end = current_timespan->get_end();
if (process_position >= end) {
/* export complete, post-roll to feed and flush latent plugins
* (This is mainly neede for Vapor) */
if (process_position + samples < end + session.worst_latency_preroll ()) {
process_position += samples;
return 0;
}
export_status->stop = true;
/* Start post-processing/normalizing if necessary */
post_processing = graph_builder->need_postprocessing ();
if (post_processing) {
export_status->total_postprocessing_cycles = graph_builder->get_postprocessing_cycle_count();
export_status->current_postprocessing_cycle = 0;
} else {
finish_timespan ();
}
return 1; /* trigger realtime_stop() */
}
bool const last_cycle = (process_position + samples >= end);
if (last_cycle) {
samples_to_read = end - process_position;
export_status->stop = true;
} else {
samples_to_read = samples;
}
@ -312,18 +332,6 @@ ExportHandler::process_timespan (samplecnt_t samples)
export_status->processed_samples_current_timespan += ret;
}
/* Start post-processing/normalizing if necessary */
if (last_cycle) {
post_processing = graph_builder->need_postprocessing ();
if (post_processing) {
export_status->total_postprocessing_cycles = graph_builder->get_postprocessing_cycle_count();
export_status->current_postprocessing_cycle = 0;
} else {
finish_timespan ();
}
return 1; /* trigger realtime_stop() */
}
return 0;
}