X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fsession_export.cc;h=7276d631ddd4d53f4cccf59b0ed1d6b4f23dbb61;hb=5956e864e7ceb1285e43f376796aaec5230d16e9;hp=ecfcb98b5c468c7301336028385a701776d74dd9;hpb=ad017365f7a73f8ba57f667cc1aa36478b48c50e;p=ardour.git diff --git a/libs/ardour/session_export.cc b/libs/ardour/session_export.cc index ecfcb98b5c..7276d631dd 100644 --- a/libs/ardour/session_export.cc +++ b/libs/ardour/session_export.cc @@ -31,7 +31,7 @@ #include "ardour/session.h" #include "ardour/track.h" -#include "i18n.h" +#include "pbd/i18n.h" using namespace std; using namespace ARDOUR; @@ -73,12 +73,16 @@ Session::pre_export () } } - /* make sure we are actually rolling */ + /* prepare transport */ + + realtime_stop (true, true); if (get_record_enabled()) { disable_record (false); } + unset_play_loop (); + /* no slaving */ post_export_sync = config.get_external_sync (); @@ -87,9 +91,9 @@ Session::pre_export () config.set_external_sync (false); _exporting = true; - export_status->running = true; + export_status->set_running (true); export_status->Finished.connect_same_thread (*this, boost::bind (&Session::finalize_audio_export, this)); - + /* disable MMC output early */ _pre_export_mmc_enabled = _mmc->send_enabled (); @@ -100,18 +104,59 @@ Session::pre_export () /** Called for each range that is being exported */ int -Session::start_audio_export (framepos_t position) +Session::start_audio_export (framepos_t position, bool realtime, bool region_export, bool comensate_master_latency) { if (!_exporting) { pre_export (); } - _export_started = false; + + _realtime_export = realtime; + _region_export = region_export; + + if (region_export) { + _export_preroll = 0; + } + else if (realtime) { + _export_preroll = nominal_frame_rate (); + } else { + _export_preroll = Config->get_export_preroll() * nominal_frame_rate (); + } + + if (_export_preroll == 0) { + // must be > 0 so that transport is started in sync. + _export_preroll = 1; + } + + /* "worst_track_latency" is the correct value for stem-exports + * see to Route::add_export_point(), + * + * For master-bus export, we also need to add the master's latency. + * (or actually longest-total-session-latency - worst-track-latency) + * to align the export to 00:00:00:00. + * + * We must not use worst_playback_latency because that + * includes external (hardware) latencies and would overcompensate + * during file-export. + * + * (this is all still very [w]hacky. Individual Bus and Track outputs + * are not aligned but one can select them in the PortExportChannelSelector) + */ + _export_latency = worst_track_latency (); + + boost::shared_ptr master = master_out (); + if (master && comensate_master_latency) { + _export_latency += master->signal_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. */ - + _butler->wait_until_finished (); /* get everyone to the right position */ @@ -151,26 +196,45 @@ Session::start_audio_export (framepos_t position) } _engine.Freewheel.connect_same_thread (export_freewheel_connection, boost::bind (&Session::process_export_fw, this, _1)); - _export_rolling = true; - return _engine.freewheel (true); + + if (_realtime_export) { + Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock ()); + _export_rolling = true; + process_function = &Session::process_export_fw; + return 0; + } else { + _export_rolling = true; + return _engine.freewheel (true); + } } -int +void Session::process_export (pframes_t nframes) { if (_export_rolling && export_status->stop) { stop_audio_export (); } - if (_export_rolling) { - /* 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); - process_without_events (nframes); + } else if (_realtime_export) { + fail_roll (nframes); // somehow we need to silence _ALL_ output buffers + } } try { @@ -181,29 +245,66 @@ Session::process_export (pframes_t nframes) } catch (std::exception & e) { error << string_compose (_("Export ended unexpectedly: %1"), e.what()) << endmsg; export_status->abort (true); - return -1; } - - return 0; } -int +void Session::process_export_fw (pframes_t nframes) { - if (!_export_started) { - _export_started = true; + const bool need_buffers = _engine.freewheeling (); + if (_export_preroll > 0) { + + if (need_buffers) { + _engine.main_thread()->get_buffers (); + } + fail_roll (nframes); + if (need_buffers) { + _engine.main_thread()->drop_buffers (); + } + + _export_preroll -= std::min ((framepos_t)nframes, _export_preroll); + + if (_export_preroll > 0) { + // clear out buffers (reverb tails etc). + return; + } + set_transport_speed (1.0, 0, false); butler_transport_work (); g_atomic_int_set (&_butler->should_do_transport_work, 0); post_transport (); - return 0; + + return; + } + + if (_export_latency > 0) { + framepos_t remain = std::min ((framepos_t)nframes, _export_latency); + + if (need_buffers) { + _engine.main_thread()->get_buffers (); + } + process_without_events (remain); + if (need_buffers) { + _engine.main_thread()->drop_buffers (); + } + + _export_latency -= remain; + nframes -= remain; + + if (nframes == 0) { + return; + } + } + + if (need_buffers) { + _engine.main_thread()->get_buffers (); } - - _engine.main_thread()->get_buffers (); process_export (nframes); - _engine.main_thread()->drop_buffers (); + if (need_buffers) { + _engine.main_thread()->drop_buffers (); + } - return 0; + return; } int @@ -232,10 +333,13 @@ Session::finalize_audio_export () /* Clean up */ + if (_realtime_export) { + Glib::Threads::Mutex::Lock lm (AudioEngine::instance()->process_lock ()); + process_function = &Session::process_with_events; + } _engine.freewheel (false); - export_freewheel_connection.disconnect(); - + _mmc->enable_send (_pre_export_mmc_enabled); /* maybe write CUE/TOC */