*/
-#include <sigc++/bind.h>
#include "pbd/error.h"
-#include <glibmm/thread.h>
+#include <glibmm/threads.h>
+
+#include <midi++/mmc.h>
-#include "ardour/audio_diskstream.h"
#include "ardour/audioengine.h"
#include "ardour/butler.h"
-#include "ardour/export_failed.h"
-#include "ardour/export_file_io.h"
#include "ardour/export_handler.h"
#include "ardour/export_status.h"
-#include "ardour/export_utilities.h"
-#include "ardour/route.h"
+#include "ardour/process_thread.h"
#include "ardour/session.h"
+#include "ardour/track.h"
-#include "i18n.h"
+#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
{
get_export_status (); // Init export_status
- wait_till_butler_finished ();
-
/* take everyone out of awrite to avoid disasters */
{
}
}
- /* 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_status->Aborting.connect (sigc::hide_return (sigc::mem_fun (*this, &Session::stop_audio_export)));
- 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<DiskstreamList> dsl = diskstreams.reader();
+ boost::shared_ptr<RouteList> 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<Track> tr = boost::dynamic_pointer_cast<Track> (*i);
+ if (tr && tr->seek (position, true)) {
error << string_compose (_("%1: cannot seek to %2 for export"),
(*i)->name(), position)
<< endmsg;
*/
_transport_frame = position;
-
- _exporting_realtime = realtime;
export_status->stop = false;
/* get transport ready. note how this is calling butler functions
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_status->stop) {
- stop_audio_export ();
- return;
- }
+ if (_export_rolling && export_status->stop) {
+ stop_audio_export ();
+ }
- 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);
+ } else if (_realtime_export) {
+ fail_roll (nframes); // somehow we need to silence _ALL_ output buffers
+ }
- /* handle export */
+ 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)
{
+ 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);
- return 0;
+ 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 ();
-
- if (!export_status->aborted()) {
- ExportReadFinished ();
- } else {
- finalize_audio_export ();
- }
+ realtime_stop (true, true);
+ _export_rolling = false;
+ _butler->schedule_transport_work ();
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();
+
+ _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);
}
}
projects / ardour.git / blobdiff