diff options
| author | Robin Gareus <robin@gareus.org> | 2016-10-17 21:34:40 +0200 |
|---|---|---|
| committer | Robin Gareus <robin@gareus.org> | 2016-10-17 21:35:00 +0200 |
| commit | 3e32a00a52908ab034c55ec4adb705165e3a54d8 (patch) | |
| tree | 66927e4a7a2decea5c3ed468db1e1b62fa107517 /libs/ardour/session_export.cc | |
| parent | 551eea452b1aad05a27fc64e07b0a031912d0866 (diff) | |
fast region export -- don't call process()
Diffstat (limited to 'libs/ardour/session_export.cc')
| -rw-r--r-- | libs/ardour/session_export.cc | 41 |
1 files changed, 28 insertions, 13 deletions
diff --git a/libs/ardour/session_export.cc b/libs/ardour/session_export.cc index 463f504411..23172838d0 100644 --- a/libs/ardour/session_export.cc +++ b/libs/ardour/session_export.cc @@ -104,15 +104,19 @@ Session::pre_export () /** Called for each range that is being exported */ int -Session::start_audio_export (framepos_t position, bool realtime) +Session::start_audio_export (framepos_t position, bool realtime, bool region_export) { if (!_exporting) { pre_export (); } _realtime_export = realtime; + _region_export = region_export; - if (realtime) { + if (region_export) { + _export_preroll = 0; + } + else if (realtime) { _export_preroll = nominal_frame_rate (); } else { _export_preroll = Config->get_export_preroll() * nominal_frame_rate (); @@ -134,6 +138,10 @@ Session::start_audio_export (framepos_t position, bool realtime) */ _export_latency = worst_track_latency (); + if (region_export) { + _export_latency = 0; + } + /* We're about to call Track::seek, so the butler must have finished everything up otherwise it could be doing do_refill in its thread while we are doing it here. @@ -197,19 +205,26 @@ Session::process_export (pframes_t nframes) stop_audio_export (); } - if (_export_rolling) { - if (!_realtime_export) { - /* make sure we've caught up with disk i/o, since - * we're running faster than realtime c/o JACK. - */ - _butler->wait_until_finished (); - } + /* for Region Raw or Fades, we can skip this + * RegionExportChannelFactory::update_buffers() does not care + * about anything done here + */ + if (!_region_export) { + if (_export_rolling) { + if (!_realtime_export) { + /* make sure we've caught up with disk i/o, since + * we're running faster than realtime c/o JACK. + */ + _butler->wait_until_finished (); + } - /* do the usual stuff */ + /* do the usual stuff */ - process_without_events (nframes); - } else if (_realtime_export) { - fail_roll (nframes); // somehow we need to silence _ALL_ output buffers + process_without_events (nframes); + + } else if (_realtime_export) { + fail_roll (nframes); // somehow we need to silence _ALL_ output buffers + } } try { |