-
/*
Copyright (C) 1999-2002 Paul Davis
#include <cerrno>
#include <cassert>
#include <unistd.h>
-#include <fcntl.h>
-#include <poll.h>
#include <boost/shared_ptr.hpp>
-#include <midi++/mmc.h>
-#include <midi++/port.h>
-#include <midi++/manager.h>
-#include <pbd/error.h>
-#include <glibmm/thread.h>
-#include <pbd/pthread_utils.h>
-
-#include <ardour/configuration.h>
-#include <ardour/audioengine.h>
-#include <ardour/session.h>
-#include <ardour/audio_track.h>
-#include <ardour/midi_track.h>
-#include <ardour/audio_diskstream.h>
-#include <ardour/slave.h>
-#include <ardour/cycles.h>
-#include <ardour/smpte.h>
+#include <glibmm/main.h>
+
+#include "midi++/mmc.h"
+#include "midi++/port.h"
+
+#include "pbd/error.h"
+#include "pbd/pthread_utils.h"
+#include "pbd/timersub.h"
+
+#include "timecode/time.h"
+
+#include "ardour/audio_track.h"
+#include "ardour/audioengine.h"
+#include "ardour/debug.h"
+#include "ardour/midi_port.h"
+#include "ardour/midi_track.h"
+#include "ardour/midi_ui.h"
+#include "ardour/session.h"
+#include "ardour/slave.h"
+#include "ardour/ticker.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace PBD;
using namespace MIDI;
-
-MachineControl::CommandSignature MMC_CommandSignature;
-MachineControl::ResponseSignature MMC_ResponseSignature;
-
+using namespace Glib;
void
Session::midi_panic()
}
}
-int
-Session::use_config_midi_ports ()
-{
- string port_name;
-
- if (default_mmc_port) {
- set_mmc_port (default_mmc_port->name());
- } else {
- set_mmc_port ("");
- }
-
- if (default_mtc_port) {
- set_mtc_port (default_mtc_port->name());
- } else {
- set_mtc_port ("");
- }
-
- if (default_midi_port) {
- set_midi_port (default_midi_port->name());
- } else {
- set_midi_port ("");
- }
-
- if (default_midi_clock_port) {
- set_midi_clock_port (default_midi_clock_port->name());
- } else {
- set_midi_clock_port ("");
- }
-
- return 0;
-}
-
-
-/***********************************************************************
- MTC, MMC, etc.
-**********************************************************************/
-
-int
-Session::set_mtc_port (string port_tag)
-{
- MTC_Slave *ms;
-
- if (port_tag.length() == 0) {
-
- if (_slave && ((ms = dynamic_cast<MTC_Slave*> (_slave)) != 0)) {
- error << _("Ardour is slaved to MTC - port cannot be reset") << endmsg;
- return -1;
- }
-
- if (_mtc_port == 0) {
- return 0;
- }
-
- _mtc_port = 0;
- goto out;
- }
-
- MIDI::Port* port;
-
- if ((port = MIDI::Manager::instance()->port (port_tag)) == 0) {
- error << string_compose (_("unknown port %1 requested for MTC"), port_tag) << endl;
- return -1;
- }
-
- _mtc_port = port;
-
- if (_slave && ((ms = dynamic_cast<MTC_Slave*> (_slave)) != 0)) {
- ms->rebind (*port);
- }
-
- Config->set_mtc_port_name (port_tag);
-
- out:
- MTC_PortChanged(); /* EMIT SIGNAL */
- change_midi_ports ();
- set_dirty();
- return 0;
-}
-
-void
-Session::set_mmc_receive_device_id (uint32_t device_id)
-{
- if (mmc) {
- mmc->set_receive_device_id (device_id);
- }
-}
-
-void
-Session::set_mmc_send_device_id (uint32_t device_id)
-{
- if (mmc) {
- mmc->set_send_device_id (device_id);
- }
-}
-
-int
-Session::set_mmc_port (string port_tag)
-{
- MIDI::byte old_recv_device_id = 0;
- MIDI::byte old_send_device_id = 0;
- bool reset_id = false;
-
- if (port_tag.length() == 0) {
- if (_mmc_port == 0) {
- return 0;
- }
- _mmc_port = 0;
- goto out;
- }
-
- MIDI::Port* port;
-
- if ((port = MIDI::Manager::instance()->port (port_tag)) == 0) {
- return -1;
- }
-
- _mmc_port = port;
-
- if (mmc) {
- old_recv_device_id = mmc->receive_device_id();
- old_recv_device_id = mmc->send_device_id();
- reset_id = true;
- delete mmc;
- }
-
- mmc = new MIDI::MachineControl (*_mmc_port, 1.0,
- MMC_CommandSignature,
- MMC_ResponseSignature);
-
- if (reset_id) {
- mmc->set_receive_device_id (old_recv_device_id);
- mmc->set_send_device_id (old_send_device_id);
- }
-
- mmc->Play.connect
- (mem_fun (*this, &Session::mmc_deferred_play));
- mmc->DeferredPlay.connect
- (mem_fun (*this, &Session::mmc_deferred_play));
- mmc->Stop.connect
- (mem_fun (*this, &Session::mmc_stop));
- mmc->FastForward.connect
- (mem_fun (*this, &Session::mmc_fast_forward));
- mmc->Rewind.connect
- (mem_fun (*this, &Session::mmc_rewind));
- mmc->Pause.connect
- (mem_fun (*this, &Session::mmc_pause));
- mmc->RecordPause.connect
- (mem_fun (*this, &Session::mmc_record_pause));
- mmc->RecordStrobe.connect
- (mem_fun (*this, &Session::mmc_record_strobe));
- mmc->RecordExit.connect
- (mem_fun (*this, &Session::mmc_record_exit));
- mmc->Locate.connect
- (mem_fun (*this, &Session::mmc_locate));
- mmc->Step.connect
- (mem_fun (*this, &Session::mmc_step));
- mmc->Shuttle.connect
- (mem_fun (*this, &Session::mmc_shuttle));
- mmc->TrackRecordStatusChange.connect
- (mem_fun (*this, &Session::mmc_record_enable));
-
-
- /* also handle MIDI SPP because its so common */
-
- _mmc_port->input()->start.connect (mem_fun (*this, &Session::spp_start));
- _mmc_port->input()->contineu.connect (mem_fun (*this, &Session::spp_continue));
- _mmc_port->input()->stop.connect (mem_fun (*this, &Session::spp_stop));
-
- Config->set_mmc_port_name (port_tag);
-
- out:
- MMC_PortChanged(); /* EMIT SIGNAL */
- change_midi_ports ();
- set_dirty();
- return 0;
-}
-
-int
-Session::set_midi_port (string port_tag)
-{
-#if 0
- if (port_tag.length() == 0) {
- if (_midi_port == 0) {
- return 0;
- }
- _midi_port = 0;
- goto out;
- }
-
- MIDI::Port* port;
-
- if ((port = MIDI::Manager::instance()->port (port_tag)) == 0) {
- return -1;
- }
-
- _midi_port = port;
-
- /* XXX need something to forward this to control protocols ? or just
- use the signal below
- */
-
- Config->set_midi_port_name (port_tag);
-
- out:
-#endif
- MIDI_PortChanged(); /* EMIT SIGNAL */
- change_midi_ports ();
- set_dirty();
- return 0;
-}
-
-int
-Session::set_midi_clock_port (string port_tag)
-{
- MIDIClock_Slave *ms;
-
- if (port_tag.length() == 0) {
-
- if (_slave && ((ms = dynamic_cast<MIDIClock_Slave*> (_slave)) != 0)) {
- error << _("Ardour is slaved to MIDI Clock - port cannot be reset") << endmsg;
- return -1;
- }
-
- if (_midi_clock_port == 0) {
- return 0;
- }
-
- _midi_clock_port = 0;
- goto out;
- }
-
- MIDI::Port* port;
-
- if ((port = MIDI::Manager::instance()->port (port_tag)) == 0) {
- error << string_compose (_("unknown port %1 requested for MIDI Clock"), port_tag) << endl;
- return -1;
- }
-
- _midi_clock_port = port;
-
- if (_slave && ((ms = dynamic_cast<MIDIClock_Slave*> (_slave)) != 0)) {
- ms->rebind (*port);
- }
-
- Config->set_midi_clock_port_name (port_tag);
-
- out:
- MIDIClock_PortChanged(); /* EMIT SIGNAL */
- change_midi_ports ();
- set_dirty();
- return 0;
-}
-
-void
-Session::set_trace_midi_input (bool yn, MIDI::Port* port)
-{
- MIDI::Parser* input_parser;
-
- cerr << "enabling tracing: " << yn << " for input port " << port->name() << endl;
-
- if (port) {
- if ((input_parser = port->input()) != 0) {
- input_parser->trace (yn, &cout, "input: ");
- }
- } else {
-
- if (_mmc_port) {
- if ((input_parser = _mmc_port->input()) != 0) {
- input_parser->trace (yn, &cout, "input: ");
- }
- }
-
- if (_mtc_port && _mtc_port != _mmc_port) {
- if ((input_parser = _mtc_port->input()) != 0) {
- input_parser->trace (yn, &cout, "input: ");
- }
- }
-
- if (_midi_port && _midi_port != _mmc_port && _midi_port != _mtc_port ) {
- if ((input_parser = _midi_port->input()) != 0) {
- input_parser->trace (yn, &cout, "input: ");
- }
- }
-
- if (_midi_clock_port
- && _midi_clock_port != _mmc_port
- && _midi_clock_port != _mtc_port
- && _midi_clock_port != _midi_port) {
- if ((input_parser = _midi_clock_port->input()) != 0) {
- input_parser->trace (yn, &cout, "input: ");
- }
- }
- }
-
- Config->set_trace_midi_input (yn);
-}
-
-void
-Session::set_trace_midi_output (bool yn, MIDI::Port* port)
-{
- MIDI::Parser* output_parser;
-
- if (port) {
- if ((output_parser = port->output()) != 0) {
- output_parser->trace (yn, &cout, "output: ");
- }
- } else {
- if (_mmc_port) {
- if ((output_parser = _mmc_port->output()) != 0) {
- output_parser->trace (yn, &cout, "output: ");
- }
- }
-
- if (_mtc_port && _mtc_port != _mmc_port) {
- if ((output_parser = _mtc_port->output()) != 0) {
- output_parser->trace (yn, &cout, "output: ");
- }
- }
-
- if (_midi_port && _midi_port != _mmc_port && _midi_port != _mtc_port ) {
- if ((output_parser = _midi_port->output()) != 0) {
- output_parser->trace (yn, &cout, "output: ");
- }
- }
-
- }
-
- Config->set_trace_midi_output (yn);
-}
-
-bool
-Session::get_trace_midi_input(MIDI::Port *port)
-{
- MIDI::Parser* input_parser;
- if (port) {
- if ((input_parser = port->input()) != 0) {
- return input_parser->tracing();
- }
- }
- else {
- if (_mmc_port) {
- if ((input_parser = _mmc_port->input()) != 0) {
- return input_parser->tracing();
- }
- }
-
- if (_mtc_port) {
- if ((input_parser = _mtc_port->input()) != 0) {
- return input_parser->tracing();
- }
- }
-
- if (_midi_port) {
- if ((input_parser = _midi_port->input()) != 0) {
- return input_parser->tracing();
- }
- }
- }
-
- return false;
-}
-
-bool
-Session::get_trace_midi_output(MIDI::Port *port)
-{
- MIDI::Parser* output_parser;
- if (port) {
- if ((output_parser = port->output()) != 0) {
- return output_parser->tracing();
- }
- }
- else {
- if (_mmc_port) {
- if ((output_parser = _mmc_port->output()) != 0) {
- return output_parser->tracing();
- }
- }
-
- if (_mtc_port) {
- if ((output_parser = _mtc_port->output()) != 0) {
- return output_parser->tracing();
- }
- }
-
- if (_midi_port) {
- if ((output_parser = _midi_port->output()) != 0) {
- return output_parser->tracing();
- }
- }
- }
-
- return false;
-
-}
-
void
Session::setup_midi_control ()
{
- outbound_mtc_smpte_frame = 0;
+ outbound_mtc_timecode_frame = 0;
next_quarter_frame_to_send = 0;
- /* setup the MMC buffer */
-
- mmc_buffer[0] = 0xf0; // SysEx
- mmc_buffer[1] = 0x7f; // Real Time SysEx ID for MMC
- mmc_buffer[2] = (mmc ? mmc->send_device_id() : 0x7f);
- mmc_buffer[3] = 0x6; // MCC
-
/* Set up the qtr frame message */
mtc_msg[0] = 0xf1;
}
void
-Session::spp_start (Parser& ignored, nframes_t timestamp)
+Session::spp_start ()
{
- if (Config->get_mmc_control() && (Config->get_slave_source() != MTC)) {
+ if (Config->get_mmc_control ()) {
request_transport_speed (1.0);
}
}
void
-Session::spp_continue (Parser& ignored, nframes_t timestamp)
+Session::spp_continue ()
{
- spp_start (ignored, timestamp);
+ spp_start ();
}
void
-Session::spp_stop (Parser& ignored, nframes_t timestamp)
+Session::spp_stop ()
{
- if (Config->get_mmc_control()) {
+ if (Config->get_mmc_control ()) {
request_stop ();
}
}
-/*
-void
-Session::midi_clock_start (Parser& ignored, nframes_t timestamp)
-{
- if (Config->get_slave_source() == MIDIClock) {
- request_transport_speed (1.0);
- }
-}
void
-Session::midi_clock_continue (Parser& parser, nframes_t timestamp)
+Session::mmc_deferred_play (MIDI::MachineControl &/*mmc*/)
{
- midi_clock_start (parser, 0);
-}
-
-void
-Session::midi_clock_stop (Parser& ignored, nframes_t timestamp)
-{
- if (Config->get_slave_source() == MIDIClock) {
- request_stop ();
- }
-}
-*/
-
-void
-Session::mmc_deferred_play (MIDI::MachineControl &mmc)
-{
- if (Config->get_mmc_control() && (Config->get_slave_source() != MTC)) {
+ if (Config->get_mmc_control ()) {
request_transport_speed (1.0);
}
}
void
-Session::mmc_record_pause (MIDI::MachineControl &mmc)
+Session::mmc_record_pause (MIDI::MachineControl &/*mmc*/)
{
- if (Config->get_mmc_control()) {
+ if (Config->get_mmc_control ()) {
maybe_enable_record();
}
}
void
-Session::mmc_record_strobe (MIDI::MachineControl &mmc)
+Session::mmc_record_strobe (MIDI::MachineControl &/*mmc*/)
{
- if (!Config->get_mmc_control())
+ if (!Config->get_mmc_control() || (_step_editors > 0)) {
return;
+ }
/* record strobe does an implicit "Play" command */
}
void
-Session::mmc_record_exit (MIDI::MachineControl &mmc)
+Session::mmc_record_exit (MIDI::MachineControl &/*mmc*/)
{
- if (Config->get_mmc_control()) {
+ if (Config->get_mmc_control ()) {
disable_record (false);
}
}
void
-Session::mmc_stop (MIDI::MachineControl &mmc)
+Session::mmc_stop (MIDI::MachineControl &/*mmc*/)
{
- if (Config->get_mmc_control()) {
+ if (Config->get_mmc_control ()) {
request_stop ();
}
}
void
-Session::mmc_pause (MIDI::MachineControl &mmc)
+Session::mmc_pause (MIDI::MachineControl &/*mmc*/)
{
- if (Config->get_mmc_control()) {
+ if (Config->get_mmc_control ()) {
/* We support RECORD_PAUSE, so the spec says that
we must interpret PAUSE like RECORD_PAUSE if
static bool step_queued = false;
void
-Session::mmc_step (MIDI::MachineControl &mmc, int steps)
+Session::mmc_step (MIDI::MachineControl &/*mmc*/, int steps)
{
- if (!Config->get_mmc_control()) {
+ if (!Config->get_mmc_control ()) {
return;
}
}
double diff_secs = diff.tv_sec + (diff.tv_usec / 1000000.0);
- double cur_speed = (((steps * 0.5) * smpte_frames_per_second()) / diff_secs) / smpte_frames_per_second();
+ double cur_speed = (((steps * 0.5) * timecode_frames_per_second()) / diff_secs) / timecode_frames_per_second();
if (_transport_speed == 0 || cur_speed * _transport_speed < 0) {
/* change direction */
<< endl;
#endif
- request_transport_speed (step_speed);
+ request_transport_speed_nonzero (step_speed);
last_mmc_step = now;
if (!step_queued) {
- midi_timeouts.push_back (mem_fun (*this, &Session::mmc_step_timeout));
- step_queued = true;
+ if (midi_control_ui) {
+ RefPtr<TimeoutSource> tsrc = TimeoutSource::create (100);
+ tsrc->connect (sigc::mem_fun (*this, &Session::mmc_step_timeout));
+ tsrc->attach (midi_control_ui->main_loop()->get_context());
+ step_queued = true;
+ }
}
}
void
-Session::mmc_rewind (MIDI::MachineControl &mmc)
+Session::mmc_rewind (MIDI::MachineControl &/*mmc*/)
{
- if (Config->get_mmc_control()) {
+ if (Config->get_mmc_control ()) {
request_transport_speed(-8.0f);
}
}
void
-Session::mmc_fast_forward (MIDI::MachineControl &mmc)
+Session::mmc_fast_forward (MIDI::MachineControl &/*mmc*/)
{
- if (Config->get_mmc_control()) {
+ if (Config->get_mmc_control ()) {
request_transport_speed(8.0f);
}
}
void
-Session::mmc_locate (MIDI::MachineControl &mmc, const MIDI::byte* mmc_tc)
+Session::mmc_locate (MIDI::MachineControl &/*mmc*/, const MIDI::byte* mmc_tc)
{
- if (!Config->get_mmc_control()) {
+ if (!Config->get_mmc_control ()) {
return;
}
- nframes_t target_frame;
- SMPTE::Time smpte;
+ framepos_t target_frame;
+ Timecode::Time timecode;
- smpte.hours = mmc_tc[0] & 0xf;
- smpte.minutes = mmc_tc[1];
- smpte.seconds = mmc_tc[2];
- smpte.frames = mmc_tc[3];
- smpte.rate = smpte_frames_per_second();
- smpte.drop = smpte_drop_frames();
+ timecode.hours = mmc_tc[0] & 0xf;
+ timecode.minutes = mmc_tc[1];
+ timecode.seconds = mmc_tc[2];
+ timecode.frames = mmc_tc[3];
+ timecode.rate = timecode_frames_per_second();
+ timecode.drop = timecode_drop_frames();
- // Also takes smpte offset into account:
- smpte_to_sample( smpte, target_frame, true /* use_offset */, false /* use_subframes */ );
+ // Also takes timecode offset into account:
+ timecode_to_sample( timecode, target_frame, true /* use_offset */, false /* use_subframes */ );
- if (target_frame > max_frames) {
- target_frame = max_frames;
+ if (target_frame > max_framepos) {
+ target_frame = max_framepos;
}
/* Some (all?) MTC/MMC devices do not send a full MTC frame
}
void
-Session::mmc_shuttle (MIDI::MachineControl &mmc, float speed, bool forw)
+Session::mmc_shuttle (MIDI::MachineControl &/*mmc*/, float speed, bool forw)
{
- if (!Config->get_mmc_control()) {
+ if (!Config->get_mmc_control ()) {
return;
}
}
if (forw) {
- request_transport_speed (speed);
+ request_transport_speed_nonzero (speed);
} else {
- request_transport_speed (-speed);
+ request_transport_speed_nonzero (-speed);
}
}
void
Session::mmc_record_enable (MIDI::MachineControl &mmc, size_t trk, bool enabled)
{
- if (Config->get_mmc_control()) {
+ if (!Config->get_mmc_control ()) {
+ return;
+ }
- RouteList::iterator i;
- boost::shared_ptr<RouteList> r = routes.reader();
+ RouteList::iterator i;
+ boost::shared_ptr<RouteList> r = routes.reader();
- for (i = r->begin(); i != r->end(); ++i) {
- AudioTrack *at;
+ for (i = r->begin(); i != r->end(); ++i) {
+ AudioTrack *at;
- if ((at = dynamic_cast<AudioTrack*>((*i).get())) != 0) {
- if (trk == at->remote_control_id()) {
- at->set_record_enable (enabled, &mmc);
- break;
- }
+ if ((at = dynamic_cast<AudioTrack*>((*i).get())) != 0) {
+ if (trk == at->remote_control_id()) {
+ at->set_record_enabled (enabled, &mmc);
+ break;
}
}
}
}
-void
-Session::change_midi_ports ()
-{
- MIDIRequest* request = new MIDIRequest;
-
- request->type = MIDIRequest::PortChange;
- midi_requests.write (&request, 1);
- poke_midi_thread ();
-}
-
-/** Send MTC Full Frame message (complete SMPTE time) for the start of this cycle.
+/** Send MTC Full Frame message (complete Timecode time) for the start of this cycle.
* This resets the MTC code, the next quarter frame message that is sent will be
* the first one with the beginning of this cycle as the new start point.
+ * @param t time to send.
*/
-
int
-Session::send_full_time_code(nframes_t nframes)
+Session::send_full_time_code (framepos_t const t, pframes_t nframes)
{
/* This function could easily send at a given frame offset, but would
* that be useful? Does ardour do sub-block accurate locating? [DR] */
MIDI::byte msg[10];
- SMPTE::Time smpte;
+ Timecode::Time timecode;
- _send_smpte_update = false;
+ _send_timecode_update = false;
- if (_mtc_port == 0 || !session_send_mtc) {
+ if (_engine.freewheeling() || !Config->get_send_mtc()) {
+ return 0;
+ }
+ if (_slave && !_slave->locked()) {
return 0;
}
- // Get smpte time for this transport frame
- sample_to_smpte(_transport_frame, smpte, true /* use_offset */, false /* no subframes */);
+ // Get timecode time for the given time
+ sample_to_timecode (t, timecode, true /* use_offset */, false /* no subframes */);
- transmitting_smpte_time = smpte;
- outbound_mtc_smpte_frame = _transport_frame;
+ // sample-align outbound to rounded (no subframes) timecode
+ framepos_t mtc_tc;
+ timecode_to_sample(timecode, mtc_tc, true, false);
+ outbound_mtc_timecode_frame = mtc_tc;
- // I don't understand this bit yet.. [DR]
- if (((mtc_smpte_bits >> 5) != MIDI::MTC_25_FPS) && (transmitting_smpte_time.frames % 2)) {
- // start MTC quarter frame transmission on an even frame
- SMPTE::increment( transmitting_smpte_time );
- outbound_mtc_smpte_frame += (nframes_t) _frames_per_smpte_frame;
+ transmitting_timecode_time = timecode;
+
+ double const quarter_frame_duration = ((framecnt_t) _frames_per_timecode_frame) / 4.0;
+ if (ceil((t - mtc_tc) / quarter_frame_duration) > 0) {
+ Timecode::increment (transmitting_timecode_time, config.get_subframes_per_frame());
+ outbound_mtc_timecode_frame += _frames_per_timecode_frame;
}
- // Compensate for audio latency
- outbound_mtc_smpte_frame += _worst_output_latency;
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("Full MTC TC %1\n", outbound_mtc_timecode_frame));
+ // I don't understand this bit yet.. [DR]
+ // I do [rg]:
+ // according to MTC spec 24, 30 drop and 30 non-drop TC, the frame-number represented by 8 quarter frames must be even.
+ if (((mtc_timecode_bits >> 5) != MIDI::MTC_25_FPS) && (transmitting_timecode_time.frames % 2)) {
+ // start MTC quarter frame transmission on an even frame
+ Timecode::increment (transmitting_timecode_time, config.get_subframes_per_frame());
+ outbound_mtc_timecode_frame += _frames_per_timecode_frame;
+ }
+
+#if 0 // compensate for audio latency -- disabled [rg]
+ /* this needs more thought and work.
+ * the proper solution will be to just offset MTC by the MIDI port's latency.
+ *
+ * using worst_playback_latency() is wrong when the generated MTC is used to sync
+ * clients which send audio to Ardour for recording.
+ * worst_capture_latency() vs. worst_playback_latency()
+ *
+ * NB. similarly to session_ltc, the offset should be subtracted from the timecode to send,
+ * instead of being added to timestamp when to send the timecode.
+ * Otherwise the timestamp may not fall into the jack-cycle of the current _transport frame.
+ * and no MTC QF will be sent.
+ */
+ outbound_mtc_timecode_frame += worst_playback_latency();
+#endif
next_quarter_frame_to_send = 0;
- // Sync slave to the same SMPTE time as we are on
+ // Sync slave to the same Timecode time as we are on
msg[0] = 0xf0;
msg[1] = 0x7f;
msg[2] = 0x7f;
msg[4] = 0x1;
msg[9] = 0xf7;
- msg[5] = mtc_smpte_bits | smpte.hours;
- msg[6] = smpte.minutes;
- msg[7] = smpte.seconds;
- msg[8] = smpte.frames;
-
- cerr << "MTC: Sending full time code at " << outbound_mtc_smpte_frame << endl;
+ msg[5] = mtc_timecode_bits | timecode.hours;
+ msg[6] = timecode.minutes;
+ msg[7] = timecode.seconds;
+ msg[8] = timecode.frames;
// Send message at offset 0, sent time is for the start of this cycle
- if (_mtc_port->midimsg (msg, sizeof (msg), 0)) {
- error << _("Session: could not send full MIDI time code") << endmsg;
- return -1;
- }
+
+ MidiBuffer& mb (_midi_ports->mtc_output_port()->get_midi_buffer (nframes));
+ mb.push_back (0, sizeof (msg), msg);
+ _pframes_since_last_mtc = 0;
return 0;
}
-
-/** Sends MTC (quarter-frame) messages for this cycle.
- * Must be called exactly once per cycle from the audio thread. Realtime safe.
- * This function assumes the state of full SMPTE is sane, eg. the slave is
+/** Send MTC (quarter-frame) messages for this cycle.
+ * Must be called exactly once per cycle from the process thread. Realtime safe.
+ * This function assumes the state of full Timecode is sane, eg. the slave is
* expecting quarter frame messages and has the right frame of reference (any
- * full MTC SMPTE time messages that needed to be sent should have been sent
+ * full MTC Timecode time messages that needed to be sent should have been sent
* earlier already this cycle by send_full_time_code)
*/
int
-Session::send_midi_time_code_for_cycle(nframes_t nframes)
+Session::send_midi_time_code_for_cycle (framepos_t start_frame, framepos_t end_frame, ARDOUR::pframes_t nframes)
{
- assert (next_quarter_frame_to_send >= 0);
- assert (next_quarter_frame_to_send <= 7);
-
- if (_mtc_port == 0 || !session_send_mtc || transmitting_smpte_time.negative
- /*|| (next_quarter_frame_to_send < 0)*/ ) {
+ if (_engine.freewheeling() || !_send_qf_mtc || transmitting_timecode_time.negative || (next_quarter_frame_to_send < 0)) {
// cerr << "(MTC) Not sending MTC\n";
return 0;
}
+ if (_slave && !_slave->locked()) {
+ return 0;
+ }
- /* Duration of one quarter frame */
- nframes_t quarter_frame_duration = ((long) _frames_per_smpte_frame) >> 2;
+ /* MTC is max. 30 fps - assert() below will fail
+ * TODO actually limit it to 24,25,29df,30fps
+ * talk to oofus, first.
+ */
+ if (Timecode::timecode_to_frames_per_second(config.get_timecode_format()) > 30) {
+ return 0;
+ }
- // cerr << "(MTC) TR: " << _transport_frame << " - SF: " << outbound_mtc_smpte_frame
- // << " - NQ: " << next_quarter_frame_to_send << " - FD" << quarter_frame_duration << endl;
+ assert (next_quarter_frame_to_send >= 0);
+ assert (next_quarter_frame_to_send <= 7);
- // FIXME: this should always be true
- //assert((outbound_mtc_smpte_frame + (next_quarter_frame_to_send * quarter_frame_duration))
- // > _transport_frame);
+ /* Duration of one quarter frame */
+ double const quarter_frame_duration = _frames_per_timecode_frame / 4.0;
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("TF %1 SF %2 MT %3 QF %4 QD %5\n",
+ _transport_frame, start_frame, outbound_mtc_timecode_frame,
+ next_quarter_frame_to_send, quarter_frame_duration));
- // Send quarter frames for this cycle
- while (_transport_frame + nframes > (outbound_mtc_smpte_frame +
- (next_quarter_frame_to_send * quarter_frame_duration))) {
+ if (rint(outbound_mtc_timecode_frame + (next_quarter_frame_to_send * quarter_frame_duration)) < _transport_frame) {
+ send_full_time_code (_transport_frame, nframes);
+ return 0;
+ }
- // cerr << "(MTC) Next frame to send: " << next_quarter_frame_to_send << endl;
+ /* Send quarter frames for this cycle */
+ while (end_frame > rint(outbound_mtc_timecode_frame + (next_quarter_frame_to_send * quarter_frame_duration))) {
+
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("next frame to send: %1\n", next_quarter_frame_to_send));
switch (next_quarter_frame_to_send) {
case 0:
- mtc_msg[1] = 0x00 | (transmitting_smpte_time.frames & 0xf);
+ mtc_msg[1] = 0x00 | (transmitting_timecode_time.frames & 0xf);
break;
case 1:
- mtc_msg[1] = 0x10 | ((transmitting_smpte_time.frames & 0xf0) >> 4);
+ mtc_msg[1] = 0x10 | ((transmitting_timecode_time.frames & 0xf0) >> 4);
break;
case 2:
- mtc_msg[1] = 0x20 | (transmitting_smpte_time.seconds & 0xf);
+ mtc_msg[1] = 0x20 | (transmitting_timecode_time.seconds & 0xf);
break;
case 3:
- mtc_msg[1] = 0x30 | ((transmitting_smpte_time.seconds & 0xf0) >> 4);
+ mtc_msg[1] = 0x30 | ((transmitting_timecode_time.seconds & 0xf0) >> 4);
break;
case 4:
- mtc_msg[1] = 0x40 | (transmitting_smpte_time.minutes & 0xf);
+ mtc_msg[1] = 0x40 | (transmitting_timecode_time.minutes & 0xf);
break;
case 5:
- mtc_msg[1] = 0x50 | ((transmitting_smpte_time.minutes & 0xf0) >> 4);
+ mtc_msg[1] = 0x50 | ((transmitting_timecode_time.minutes & 0xf0) >> 4);
break;
case 6:
- mtc_msg[1] = 0x60 | ((mtc_smpte_bits|transmitting_smpte_time.hours) & 0xf);
+ mtc_msg[1] = 0x60 | ((mtc_timecode_bits | transmitting_timecode_time.hours) & 0xf);
break;
case 7:
- mtc_msg[1] = 0x70 | (((mtc_smpte_bits|transmitting_smpte_time.hours) & 0xf0) >> 4);
+ mtc_msg[1] = 0x70 | (((mtc_timecode_bits | transmitting_timecode_time.hours) & 0xf0) >> 4);
break;
}
- const nframes_t msg_time = (outbound_mtc_smpte_frame
- + (quarter_frame_duration * next_quarter_frame_to_send));
+ const framepos_t msg_time = rint(outbound_mtc_timecode_frame + (quarter_frame_duration * next_quarter_frame_to_send));
// This message must fall within this block or something is broken
- assert(msg_time >= _transport_frame);
- assert(msg_time < _transport_frame + nframes);
+ assert (msg_time >= start_frame);
+ assert (msg_time < end_frame);
- nframes_t out_stamp = msg_time - _transport_frame;
- assert(out_stamp < nframes);
+ /* convert from session frames back to JACK frames using the transport speed */
+ ARDOUR::pframes_t const out_stamp = (msg_time - start_frame) / _transport_speed;
+ assert (out_stamp < nframes);
- if (_mtc_port->midimsg (mtc_msg, 2, out_stamp)) {
+ MidiBuffer& mb (_midi_ports->mtc_output_port()->get_midi_buffer(nframes));
+ if (!mb.push_back (out_stamp, 2, mtc_msg)) {
error << string_compose(_("Session: cannot send quarter-frame MTC message (%1)"), strerror (errno))
<< endmsg;
return -1;
}
- /*cerr << "(MTC) SMPTE: " << transmitting_smpte_time.hours
- << ":" << transmitting_smpte_time.minutes
- << ":" << transmitting_smpte_time.seconds
- << ":" << transmitting_smpte_time.frames
- << ", qfm = " << next_quarter_frame_to_send
- << ", stamp = " << out_stamp
- << ", delta = " << _transport_frame + out_stamp - last_time << endl;*/
+#ifndef NDEBUG
+ DEBUG_STR_DECL(foo)
+ DEBUG_STR_APPEND(foo,"sending ");
+ DEBUG_STR_APPEND(foo, transmitting_timecode_time);
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("%1 qfm = %2, stamp = %3\n", DEBUG_STR(foo).str(), next_quarter_frame_to_send,
+ out_stamp));
+#endif
// Increment quarter frame counter
next_quarter_frame_to_send++;
if (next_quarter_frame_to_send >= 8) {
// Wrap quarter frame counter
next_quarter_frame_to_send = 0;
- // Increment smpte time twice
- SMPTE::increment( transmitting_smpte_time );
- SMPTE::increment( transmitting_smpte_time );
+ // Increment timecode time twice
+ Timecode::increment (transmitting_timecode_time, config.get_subframes_per_frame());
+ Timecode::increment (transmitting_timecode_time, config.get_subframes_per_frame());
// Re-calculate timing of first quarter frame
- //smpte_to_sample( transmitting_smpte_time, outbound_mtc_smpte_frame, true /* use_offset */, false );
- outbound_mtc_smpte_frame += 8 * quarter_frame_duration;
- // Compensate for audio latency
- outbound_mtc_smpte_frame += _worst_output_latency;
+ //timecode_to_sample( transmitting_timecode_time, outbound_mtc_timecode_frame, true /* use_offset */, false );
+ outbound_mtc_timecode_frame += 2.0 * _frames_per_timecode_frame;
}
}
OUTBOUND MMC STUFF
**********************************************************************/
-void
-Session::deliver_mmc (MIDI::MachineControl::Command cmd, nframes_t where)
-{
- using namespace MIDI;
- int nbytes = 4;
- SMPTE::Time smpte;
-
- if (_mmc_port == 0 || !session_send_mmc) {
- // cerr << "Not delivering MMC " << _mmc_port << " - " << session_send_mmc << endl;
- return;
- }
-
- mmc_buffer[nbytes++] = cmd;
-
- // cerr << "delivering MMC, cmd = " << hex << (int) cmd << dec << endl;
-
- switch (cmd) {
- case MachineControl::cmdLocate:
- smpte_time_subframes (where, smpte);
-
- mmc_buffer[nbytes++] = 0x6; // byte count
- mmc_buffer[nbytes++] = 0x1; // "TARGET" subcommand
- mmc_buffer[nbytes++] = smpte.hours;
- mmc_buffer[nbytes++] = smpte.minutes;
- mmc_buffer[nbytes++] = smpte.seconds;
- mmc_buffer[nbytes++] = smpte.frames;
- mmc_buffer[nbytes++] = smpte.subframes;
- break;
-
- case MachineControl::cmdStop:
- break;
-
- case MachineControl::cmdPlay:
- /* always convert Play into Deferred Play */
- /* Why? [DR] */
- mmc_buffer[4] = MachineControl::cmdDeferredPlay;
- break;
-
- case MachineControl::cmdDeferredPlay:
- break;
-
- case MachineControl::cmdRecordStrobe:
- break;
-
- case MachineControl::cmdRecordExit:
- break;
-
- case MachineControl::cmdRecordPause:
- break;
-
- default:
- nbytes = 0;
- };
-
- if (nbytes) {
-
- mmc_buffer[nbytes++] = 0xf7; // terminate SysEx/MMC message
-
- if (_mmc_port->midimsg (mmc_buffer, nbytes, 0)) {
- error << string_compose(_("MMC: cannot send command %1%2%3"), &hex, cmd, &dec) << endmsg;
- }
- }
-}
bool
Session::mmc_step_timeout ()
/* slow it down */
- request_transport_speed (_transport_speed * 0.75);
+ request_transport_speed_nonzero (_transport_speed * 0.75);
return true;
}
-/*---------------------------------------------------------------------------
- MIDI THREAD
- ---------------------------------------------------------------------------*/
-
-int
-Session::start_midi_thread ()
-{
- if (pipe (midi_request_pipe)) {
- error << string_compose(_("Cannot create transport request signal pipe (%1)"), strerror (errno)) << endmsg;
- return -1;
- }
-
- if (fcntl (midi_request_pipe[0], F_SETFL, O_NONBLOCK)) {
- error << string_compose(_("UI: cannot set O_NONBLOCK on " "signal read pipe (%1)"), strerror (errno)) << endmsg;
- return -1;
- }
+/***********************************************************************
+ OUTBOUND SYSTEM COMMON STUFF
+**********************************************************************/
- if (fcntl (midi_request_pipe[1], F_SETFL, O_NONBLOCK)) {
- error << string_compose(_("UI: cannot set O_NONBLOCK on " "signal write pipe (%1)"), strerror (errno)) << endmsg;
- return -1;
- }
- if (pthread_create_and_store ("transport", &midi_thread, 0, _midi_thread_work, this)) {
- error << _("Session: could not create transport thread") << endmsg;
- return -1;
+void
+Session::send_song_position_pointer (framepos_t)
+{
+ if (midi_clock) {
+ /* Do nothing for the moment */
}
+}
+int
+Session::start_midi_thread ()
+{
+ midi_control_ui = new MidiControlUI (*this);
+ midi_control_ui->run ();
return 0;
}
-void
-Session::terminate_midi_thread ()
+MIDI::Port*
+Session::midi_input_port () const
{
- if (midi_thread) {
-
- MIDIRequest* request = new MIDIRequest;
- void* status;
-
- request->type = MIDIRequest::Quit;
-
- midi_requests.write (&request, 1);
- poke_midi_thread ();
-
- pthread_join (midi_thread, &status);
- }
+ return _midi_ports->midi_input_port ();
}
-
-void
-Session::poke_midi_thread ()
+MIDI::Port*
+Session::midi_output_port () const
{
- static char c = 0;
-
- if (write (midi_request_pipe[1], &c, 1) != 1) {
- error << string_compose(_("cannot send signal to midi thread! (%1)"), strerror (errno)) << endmsg;
- }
+ return _midi_ports->midi_output_port ();
}
-
-void *
-Session::_midi_thread_work (void* arg)
+boost::shared_ptr<MidiPort>
+Session::midi_clock_output_port () const
{
- pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, 0);
- pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
-
- ((Session *) arg)->midi_thread_work ();
- return 0;
+ return _midi_ports->midi_clock_output_port ();
}
-
-void
-Session::midi_thread_work ()
+boost::shared_ptr<MidiPort>
+Session::midi_clock_input_port () const
{
- MIDIRequest* request;
- struct pollfd pfd[4];
- int nfds = 0;
- int timeout;
- int fds_ready;
- struct sched_param rtparam;
- int x;
- bool restart;
- vector<MIDI::Port*> ports;
-
- PBD::ThreadCreatedWithRequestSize (pthread_self(), X_("MIDI"), 2048);
-
- memset (&rtparam, 0, sizeof (rtparam));
- rtparam.sched_priority = 9; /* XXX should be relative to audio (JACK) thread */
-
- if ((x = pthread_setschedparam (pthread_self(), SCHED_FIFO, &rtparam)) != 0) {
- // do we care? not particularly.
- }
-
- /* set up the port vector; 5 is the largest possible size for now */
-
- ports.assign (5, (MIDI::Port*) 0);
-
- while (1) {
-
- nfds = 0;
-
- pfd[nfds].fd = midi_request_pipe[0];
- pfd[nfds].events = POLLIN|POLLHUP|POLLERR;
- nfds++;
-
- if (Config->get_mmc_control() && _mmc_port && _mmc_port->selectable() >= 0) {
- pfd[nfds].fd = _mmc_port->selectable();
- pfd[nfds].events = POLLIN|POLLHUP|POLLERR;
- ports[nfds] = _mmc_port;
- nfds++;
- }
-
- /* if MTC is being handled on a different port from MMC
- or we are not handling MMC at all, poll
- the relevant port.
- */
-
- if (_mtc_port && (_mtc_port != _mmc_port || !Config->get_mmc_control()) && _mtc_port->selectable() >= 0) {
- pfd[nfds].fd = _mtc_port->selectable();
- pfd[nfds].events = POLLIN|POLLHUP|POLLERR;
- ports[nfds] = _mtc_port;
- nfds++;
- }
-
- if (_midi_clock_port && (_midi_clock_port != _mmc_port || !Config->get_mmc_control()) && _midi_clock_port->selectable() >= 0) {
- pfd[nfds].fd = _midi_clock_port->selectable();
- pfd[nfds].events = POLLIN|POLLHUP|POLLERR;
- ports[nfds] = _midi_clock_port;
- nfds++;
- }
-
- /* if we are using MMC control, we obviously have to listen
- the relevant port.
- */
-
- if (_midi_port && (_midi_port != _mmc_port || !Config->get_mmc_control()) && (_midi_port != _mtc_port) && _midi_port->selectable() >= 0) {
- pfd[nfds].fd = _midi_port->selectable();
- pfd[nfds].events = POLLIN|POLLHUP|POLLERR;
- ports[nfds] = _midi_port;
- nfds++;
- }
-
- if (!midi_timeouts.empty()) {
- timeout = 100; /* 10msecs */
- } else {
- timeout = -1; /* if there is no data, we don't care */
- }
-
- again:
- // cerr << "MIDI poll on " << nfds << " for " << timeout << endl;
- if (poll (pfd, nfds, timeout) < 0) {
- if (errno == EINTR) {
- /* gdb at work, perhaps */
- goto again;
- }
-
- error << string_compose(_("MIDI thread poll failed (%1)"), strerror (errno)) << endmsg;
-
- break;
- }
- // cerr << "MIDI thread wakes at " << get_cycles () << endl;
-
- fds_ready = 0;
-
- /* check the transport request pipe */
-
- if (pfd[0].revents & ~POLLIN) {
- error << _("Error on transport thread request pipe") << endmsg;
- break;
- }
-
- if (pfd[0].revents & POLLIN) {
-
- char foo[16];
-
- // cerr << "MIDI request FIFO ready\n";
- fds_ready++;
-
- /* empty the pipe of all current requests */
-
- while (1) {
- size_t nread = read (midi_request_pipe[0], &foo, sizeof (foo));
-
- if (nread > 0) {
- if ((size_t) nread < sizeof (foo)) {
- break;
- } else {
- continue;
- }
- } else if (nread == 0) {
- break;
- } else if (errno == EAGAIN) {
- break;
- } else {
- fatal << _("Error reading from transport request pipe") << endmsg;
- /*NOTREACHED*/
- }
- }
-
- while (midi_requests.read (&request, 1) == 1) {
-
- switch (request->type) {
- case MIDIRequest::PortChange:
- /* restart poll with new ports */
- // cerr << "rebind\n";
- restart = true;
- break;
-
- case MIDIRequest::Quit:
- delete request;
- pthread_exit_pbd (0);
- /*NOTREACHED*/
- break;
-
- default:
- break;
- }
-
-
- delete request;
- }
-
- }
-
- if (restart) {
- continue;
- }
-
- /* now read the rest of the ports */
-
- for (int p = 1; p < nfds; ++p) {
- if ((pfd[p].revents & ~POLLIN)) {
- // error << string_compose(_("Transport: error polling MIDI port %1 (revents =%2%3%4"), p, &hex, pfd[p].revents, &dec) << endmsg;
- break;
- }
-
- if (pfd[p].revents & POLLIN) {
- fds_ready++;
- ports[p]->parse ();
- }
- }
-
- /* timeout driven */
-
- if (fds_ready < 2 && timeout != -1) {
-
- for (MidiTimeoutList::iterator i = midi_timeouts.begin(); i != midi_timeouts.end(); ) {
-
- MidiTimeoutList::iterator tmp;
- tmp = i;
- ++tmp;
-
- if (!(*i)()) {
- midi_timeouts.erase (i);
- }
+ return _midi_ports->midi_clock_input_port ();
+}
+boost::shared_ptr<MidiPort>
+Session::mtc_output_port () const
+{
+ return _midi_ports->mtc_output_port ();
+}
+boost::shared_ptr<MidiPort>
+Session::mtc_input_port () const
+{
+ return _midi_ports->mtc_input_port ();
+}
- i = tmp;
- }
- }
- }
+MIDI::Port*
+Session::mmc_output_port () const
+{
+ return _midi_ports->mmc_output_port ();
}
+MIDI::Port*
+Session::mmc_input_port () const
+{
+ return _midi_ports->mmc_input_port ();
+}
projects / ardour.git / blobdiff