X-Git-Url: https://main.carlh.net/gitweb/?p=ardour.git;a=blobdiff_plain;f=libs%2Fardour%2Fsession_export.cc;h=463f50441121fc1e5d090c9b6ac6092f69341cde;hp=0438d808a047404601ab546811ecca10a069029c;hb=c8c6bca6587450ff64303dbc994a4cd28d6ce7aa;hpb=641dbfcaa2ea1b7d8ce2aa6058e191aa760f4791 diff --git a/libs/ardour/session_export.cc b/libs/ardour/session_export.cc index 0438d808a0..463f504411 100644 --- a/libs/ardour/session_export.cc +++ b/libs/ardour/session_export.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 1999-2008 Paul Davis + Copyright (C) 1999-2008 Paul Davis This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -17,24 +17,21 @@ */ -#include -#include -#include +#include "pbd/error.h" +#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include +#include -#include "i18n.h" +#include "ardour/audioengine.h" +#include "ardour/butler.h" +#include "ardour/export_handler.h" +#include "ardour/export_status.h" +#include "ardour/process_thread.h" +#include "ardour/session.h" +#include "ardour/track.h" + +#include "pbd/i18n.h" using namespace std; using namespace ARDOUR; @@ -46,7 +43,7 @@ Session::get_export_handler () if (!export_handler) { export_handler.reset (new ExportHandler (*this)); } - + return export_handler; } @@ -56,17 +53,16 @@ Session::get_export_status () if (!export_status) { export_status.reset (new ExportStatus ()); } - + return export_status; } + int Session::pre_export () { get_export_status (); // Init export_status - wait_till_butler_finished (); - /* take everyone out of awrite to avoid disasters */ { @@ -77,41 +73,82 @@ 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_slave = Config->get_slave_source (); + post_export_sync = config.get_external_sync (); post_export_position = _transport_frame; - Config->set_slave_source (None); - + config.set_external_sync (false); + _exporting = true; - export_status->running = true; - export_abort_connection = export_status->Aborting.connect (sigc::hide_return (sigc::mem_fun (*this, &Session::stop_audio_export))); - export_abort_connection = export_status->Finished.connect (sigc::hide_return (sigc::mem_fun (*this, &Session::finalize_audio_export))); + 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 (); + _mmc->enable_send (false); return 0; } +/** Called for each range that is being exported */ int -Session::start_audio_export (nframes_t position, bool realtime) +Session::start_audio_export (framepos_t position, bool realtime) { if (!_exporting) { pre_export (); } + _realtime_export = realtime; + + 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'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. + */ + + _butler->wait_until_finished (); + /* get everyone to the right position */ { - boost::shared_ptr dsl = diskstreams.reader(); + boost::shared_ptr rl = routes.reader(); - for (DiskstreamList::iterator i = dsl->begin(); i != dsl->end(); ++i) { - if ((*i)-> seek (position, true)) { + for (RouteList::iterator i = rl->begin(); i != rl->end(); ++i) { + boost::shared_ptr tr = boost::dynamic_pointer_cast (*i); + if (tr && tr->seek (position, true)) { error << string_compose (_("%1: cannot seek to %2 for export"), (*i)->name(), position) << endmsg; @@ -126,8 +163,6 @@ Session::start_audio_export (nframes_t position, bool realtime) */ _transport_frame = position; - - _exporting_realtime = realtime; export_status->stop = false; /* get transport ready. note how this is calling butler functions @@ -136,118 +171,162 @@ Session::start_audio_export (nframes_t position, bool realtime) since then has re-awakened it. */ - set_transport_speed (1.0, false); - butler_transport_work (); - g_atomic_int_set (&butler_should_do_transport_work, 0); - post_transport (); - /* we are ready to go ... */ - + if (!_engine.connected()) { return -1; } - if (realtime) { - last_process_function = process_function; - process_function = &Session::process_export; + _engine.Freewheel.connect_same_thread (export_freewheel_connection, boost::bind (&Session::process_export_fw, this, _1)); + + 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_freewheel_connection = _engine.Freewheel.connect (sigc::mem_fun (*this, &Session::process_export_fw)); + _export_rolling = true; return _engine.freewheel (true); } - - return 0; } void -Session::process_export (nframes_t nframes) +Session::process_export (pframes_t nframes) { - try { + if (_export_rolling && export_status->stop) { + stop_audio_export (); + } - if (export_status->stop) { - stop_audio_export (); - return; - } - - if (!_exporting_realtime) { + 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. - */ - - wait_till_butler_finished (); + * we're running faster than realtime c/o JACK. + */ + _butler->wait_until_finished (); } - + /* do the usual stuff */ - + process_without_events (nframes); - - /* handle export */ - + } else if (_realtime_export) { + fail_roll (nframes); // somehow we need to silence _ALL_ output buffers + } + + try { + /* handle export - XXX what about error handling? */ + ProcessExport (nframes); - } catch (ExportFailed e) { + } catch (std::exception & e) { + error << string_compose (_("Export ended unexpectedly: %1"), e.what()) << endmsg; export_status->abort (true); } } -int -Session::process_export_fw (nframes_t nframes) +void +Session::process_export_fw (pframes_t nframes) { - process_export (nframes); - return 0; + 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; + } + + 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 (); + } + process_export (nframes); + if (need_buffers) { + _engine.main_thread()->drop_buffers (); + } + + return; } int Session::stop_audio_export () { - if (_exporting_realtime) { - process_function = last_process_function; - } else { - export_freewheel_connection.disconnect(); - } - /* can't use stop_transport() here because we need an immediate halt and don't require all the declick stuff that stop_transport() implements. */ - realtime_stop (true); - schedule_butler_transport_work (); + realtime_stop (true, true); + _export_rolling = false; + _butler->schedule_transport_work (); - if (!export_status->aborted()) { - ExportReadFinished (); - } else { - finalize_audio_export (); - } - return 0; - } void Session::finalize_audio_export () { _exporting = false; - export_status->running = false; - if (!_exporting_realtime) { - _engine.freewheel (false); - _exporting_realtime = false; + if (_export_rolling) { + stop_audio_export (); } /* Clean up */ - - ProcessExport.clear(); - ExportReadFinished.clear(); + + 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(); - export_abort_connection.disconnect(); + + _mmc->enable_send (_pre_export_mmc_enabled); + + /* maybe write CUE/TOC */ + export_handler.reset(); export_status.reset(); /* restart slaving */ - if (post_export_slave != None) { - Config->set_slave_source (post_export_slave); + if (post_export_sync) { + config.set_external_sync (true); } else { - locate (post_export_position, false, false, false); + locate (post_export_position, false, false, false, false, false); } }