X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fsession_export.cc;h=879f34020af63004387fe0314a118004c9e54fc7;hb=1dc35d157eb45f2b28de954a7c98cc06a77c2802;hp=1dee1f8d3cef30e3716027116271433722358abb;hpb=a4a246b41d68012534fdc315c67e32c18a25ae8e;p=ardour.git diff --git a/libs/ardour/session_export.cc b/libs/ardour/session_export.cc index 1dee1f8d3c..879f34020a 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; @@ -86,7 +86,7 @@ Session::pre_export () /* no slaving */ post_export_sync = config.get_external_sync (); - post_export_position = _transport_frame; + post_export_position = _transport_sample; config.set_external_sync (false); @@ -104,29 +104,29 @@ Session::pre_export () /** Called for each range that is being exported */ int -Session::start_audio_export (framepos_t position) +Session::start_audio_export (samplepos_t position, bool realtime, bool region_export) { if (!_exporting) { pre_export (); } - _export_preroll = Config->get_export_preroll() * nominal_frame_rate (); + _realtime_export = realtime; + _region_export = region_export; + + if (region_export) { + _export_preroll = 0; + } + else if (realtime) { + _export_preroll = nominal_sample_rate (); + } else { + _export_preroll = Config->get_export_preroll() * nominal_sample_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'd need to add the master's latency. - * or actually longest-total-session-latency. - * - * We can't use worst_playback_latency because that includes - * includes external latencies and would overcompensate. - */ - _export_latency = worst_track_latency (); - /* 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. @@ -151,11 +151,17 @@ Session::start_audio_export (framepos_t position) } /* we just did the core part of a locate() call above, but - for the sake of any GUI, put the _transport_frame in + for the sake of any GUI, put the _transport_sample in the right place too. */ - _transport_frame = position; + _transport_sample = position; + + if (!region_export) { + _remaining_latency_preroll = worst_latency_preroll (); + } else { + _remaining_latency_preroll = 0; + } export_status->stop = false; /* get transport ready. note how this is calling butler functions @@ -171,26 +177,45 @@ 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 { @@ -201,26 +226,28 @@ 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) { + const bool need_buffers = _engine.freewheeling (); if (_export_preroll > 0) { - _engine.main_thread()->get_buffers (); + if (need_buffers) { + _engine.main_thread()->get_buffers (); + } fail_roll (nframes); - _engine.main_thread()->drop_buffers (); + if (need_buffers) { + _engine.main_thread()->drop_buffers (); + } - _export_preroll -= std::min ((framepos_t)nframes, _export_preroll); + _export_preroll -= std::min ((samplepos_t)nframes, _export_preroll); if (_export_preroll > 0) { // clear out buffers (reverb tails etc). - return 0; + return; } set_transport_speed (1.0, 0, false); @@ -228,29 +255,41 @@ Session::process_export_fw (pframes_t nframes) 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 (_remaining_latency_preroll > 0) { + samplepos_t remain = std::min ((samplepos_t)nframes, _remaining_latency_preroll); + + if (need_buffers) { + _engine.main_thread()->get_buffers (); + } - _engine.main_thread()->get_buffers (); process_without_events (remain); - _engine.main_thread()->drop_buffers (); - _export_latency -= remain; + if (need_buffers) { + _engine.main_thread()->drop_buffers (); + } + + _remaining_latency_preroll -= remain; + _transport_sample -= remain; nframes -= remain; if (nframes == 0) { - return 0; + return; } + _engine.split_cycle (remain); } - _engine.main_thread()->get_buffers (); + if (need_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 @@ -279,8 +318,11 @@ 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);