*/
#include <iostream>
#include <errno.h>
-#include <poll.h>
#include <sys/types.h>
#include <unistd.h>
#include "pbd/error.h"
+#include "pbd/pthread_utils.h"
-#include "midi++/port.h"
+#include "ardour/audioengine.h"
#include "ardour/debug.h"
-#include "ardour/slave.h"
+#include "ardour/midi_buffer.h"
+#include "ardour/midi_port.h"
#include "ardour/session.h"
-#include "ardour/audioengine.h"
+#include "ardour/slave.h"
+
+#include <glibmm/timer.h>
-#include "i18n.h"
+#include "pbd/i18n.h"
using namespace std;
using namespace ARDOUR;
*/
const int MTC_Slave::frame_tolerance = 2;
-MTC_Slave::MTC_Slave (Session& s, MIDI::Port& p)
+MTC_Slave::MTC_Slave (Session& s, MidiPort& p)
: session (s)
+ , port (&p)
{
can_notify_on_unknown_rate = true;
did_reset_tc_format = false;
reset_pending = 0;
reset_position = false;
mtc_frame = 0;
+ mtc_frame_dll = 0;
engine_dll_initstate = 0;
busy_guard1 = busy_guard2 = 0;
last_mtc_fps_byte = session.get_mtc_timecode_bits ();
quarter_frame_duration = (double(session.frames_per_timecode_frame()) / 4.0);
- mtc_timecode = timecode_60; // track changes of MTC timecode
- a3e_timecode = timecode_60; // track canges of Ardour's timecode
+ mtc_timecode = session.config.get_timecode_format();
+ a3e_timecode = session.config.get_timecode_format();
printed_timecode_warning = false;
+ session.config.ParameterChanged.connect_same_thread (config_connection, boost::bind (&MTC_Slave::parameter_changed, this, _1));
+ parse_timecode_offset();
reset (true);
- rebind (p);
+
+ port->self_parser().mtc_time.connect_same_thread (port_connections, boost::bind (&MTC_Slave::update_mtc_time, this, _1, _2, _3));
+ port->self_parser().mtc_qtr.connect_same_thread (port_connections, boost::bind (&MTC_Slave::update_mtc_qtr, this, _1, _2, _3));
+ port->self_parser().mtc_status.connect_same_thread (port_connections, boost::bind (&MTC_Slave::update_mtc_status, this, _1));
}
MTC_Slave::~MTC_Slave()
{
port_connections.drop_connections();
+ config_connection.disconnect();
while (busy_guard1 != busy_guard2) {
/* make sure MIDI parser is not currently calling any callbacks in here,
}
void
-MTC_Slave::rebind (MIDI::Port& p)
+MTC_Slave::rebind (MidiPort& p)
{
port_connections.drop_connections ();
port = &p;
- port->parser()->mtc_time.connect_same_thread (port_connections, boost::bind (&MTC_Slave::update_mtc_time, this, _1, _2, _3));
- port->parser()->mtc_qtr.connect_same_thread (port_connections, boost::bind (&MTC_Slave::update_mtc_qtr, this, _1, _2, _3));
- port->parser()->mtc_status.connect_same_thread (port_connections, boost::bind (&MTC_Slave::update_mtc_status, this, _1));
+}
+
+void
+MTC_Slave::parse_timecode_offset() {
+ Timecode::Time offset_tc;
+ Timecode::parse_timecode_format(session.config.get_slave_timecode_offset(), offset_tc);
+ offset_tc.rate = session.timecode_frames_per_second();
+ offset_tc.drop = session.timecode_drop_frames();
+ session.timecode_to_sample(offset_tc, timecode_offset, false, false);
+ timecode_negative_offset = offset_tc.negative;
+}
+
+void
+MTC_Slave::parameter_changed (std::string const & p)
+{
+ if (p == "slave-timecode-offset"
+ || p == "timecode-format"
+ ) {
+ parse_timecode_offset();
+ }
}
bool
bool
MTC_Slave::locked () const
{
- return port->parser()->mtc_locked();
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("locked ? %1 last %2 initstate %3\n", port->self_parser().mtc_locked(), last_inbound_frame, engine_dll_initstate));
+ return port->self_parser().mtc_locked() && last_inbound_frame !=0 && engine_dll_initstate !=0;
}
bool
window_begin = 0;
window_end = 0;
transport_direction = 1;
+ current_delta = 0;
+ ActiveChanged(false);
}
void
do {
if (tries == 10) {
error << _("MTC Slave: atomic read of current time failed, sleeping!") << endmsg;
- usleep (20);
+ Glib::usleep (20);
tries = 0;
}
*st = current;
void
MTC_Slave::init_mtc_dll(framepos_t tme, double qtr)
{
- omega = 2.0 * M_PI * qtr / double(session.frame_rate());
+ omega = 2.0 * M_PI * qtr / 2.0 / double(session.frame_rate());
b = 1.4142135623730950488 * omega;
c = omega * omega;
DEBUG_TRACE (DEBUG::MTC, string_compose ("[re-]init MTC DLL %1 %2 %3\n", t0, t1, e2));
}
-
/* called from MIDI parser */
void
MTC_Slave::update_mtc_qtr (Parser& /*p*/, int which_qtr, framepos_t now)
{
busy_guard1++;
const double qtr_d = quarter_frame_duration;
- const framepos_t qtr = rint(qtr_d);
- mtc_frame += qtr * transport_direction;
+ mtc_frame_dll += qtr_d * (double) transport_direction;
+ mtc_frame = rint(mtc_frame_dll);
DEBUG_TRACE (DEBUG::MTC, string_compose ("qtr frame %1 at %2 -> mtc_frame: %3\n", which_qtr, now, mtc_frame));
double mtc_speed = 0;
if (first_mtc_timestamp != 0) {
/* update MTC DLL and calculate speed */
- const double e = double(transport_direction) * (double(now) - double(current.timestamp) - qtr_d);
+ const double e = mtc_frame_dll - (double)transport_direction * ((double)now - (double)current.timestamp + t0);
t0 = t1;
t1 += b * e + e2;
e2 += c * e;
mtc_speed = (t1 - t0) / qtr_d;
DEBUG_TRACE (DEBUG::MTC, string_compose ("qtr frame DLL t0:%1 t1:%2 err:%3 spd:%4 ddt:%5\n", t0, t1, e, mtc_speed, e2 - qtr_d));
- }
- current.guard1++;
- current.position = mtc_frame;
- current.timestamp = now;
- current.speed = mtc_speed;
- current.guard2++;
+ current.guard1++;
+ current.position = mtc_frame;
+ current.timestamp = now;
+ current.speed = mtc_speed;
+ current.guard2++;
+
+ last_inbound_frame = now;
+ }
maybe_reset ();
- last_inbound_frame = now;
busy_guard2++;
}
* when a full TC has been received
* OR on locate */
void
-MTC_Slave::update_mtc_time (const byte *msg, bool was_full, framepos_t now)
+MTC_Slave::update_mtc_time (const MIDI::byte *msg, bool was_full, framepos_t now)
{
busy_guard1++;
to use a timestamp indicating when this MTC time was received. example: when we received
a locate command via MMC.
*/
-
- //DEBUG_TRACE (DEBUG::MTC, string_compose ("MTC::update_mtc_time - TID:%1\n", ::pthread_self()));
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("MTC::update_mtc_time - TID:%1\n", pthread_name()));
TimecodeFormat tc_format;
bool reset_tc = true;
can_notify_on_unknown_rate = true;
break;
case MTC_30_FPS_DROP:
- timecode.rate = 30;
+ if (Config->get_timecode_source_2997()) {
+ tc_format = Timecode::timecode_2997000drop;
+ timecode.rate = (29970.0/1000.0);
+ } else {
+ tc_format = timecode_2997drop;
+ timecode.rate = (30000.0/1001.0);
+ }
timecode.drop = true;
- tc_format = timecode_30drop;
can_notify_on_unknown_rate = true;
break;
case MTC_30_FPS:
did_reset_tc_format = true;
}
if (cur_timecode != tc_format) {
- warning << _("Session and MTC framerate mismatch.") << endmsg;
+ if (ceil(Timecode::timecode_to_frames_per_second(cur_timecode)) != ceil(Timecode::timecode_to_frames_per_second(tc_format))) {
+ warning << string_compose(_("Session framerate adjusted from %1 TO: MTC's %2."),
+ Timecode::timecode_format_name(cur_timecode),
+ Timecode::timecode_format_name(tc_format))
+ << endmsg;
+ }
}
session.config.set_timecode_format (tc_format);
} else {
if (a3e_timecode != cur_timecode) printed_timecode_warning = false;
if (cur_timecode != tc_format && ! printed_timecode_warning) {
- warning << _("Session and MTC framerate mismatch.") << endmsg;
+ if (ceil(Timecode::timecode_to_frames_per_second(cur_timecode)) != ceil(Timecode::timecode_to_frames_per_second(tc_format))) {
+ warning << string_compose(_("Session and MTC framerate mismatch: MTC:%1 %2:%3."),
+ Timecode::timecode_format_name(tc_format),
+ PROGRAM_NAME,
+ Timecode::timecode_format_name(cur_timecode))
+ << endmsg;
+ }
printed_timecode_warning = true;
}
}
Timecode::timecode_to_sample (timecode, mtc_frame, true, false,
double(session.frame_rate()),
session.config.get_subframes_per_frame(),
- session.config.get_timecode_offset_negative(), session.config.get_timecode_offset()
+ timecode_negative_offset, timecode_offset
);
DEBUG_TRACE (DEBUG::MTC, string_compose ("MTC at %1 TC %2 = mtc_frame %3 (from full message ? %4) tc-ratio %5\n",
now, timecode, mtc_frame, was_full, speedup_due_to_tc_mismatch));
if (was_full || outside_window (mtc_frame)) {
- DEBUG_TRACE (DEBUG::MTC, string_compose ("update_mtc_time: full TC or outside window. - TID:%1\n", ::pthread_self()));
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("update_mtc_time: full TC %1 or outside window %2\n", was_full, outside_window (mtc_frame)));
session.request_locate (mtc_frame, false);
session.request_transport_speed (0);
update_mtc_status (MIDI::MTC_Stopped);
DEBUG_TRACE (DEBUG::MTC, string_compose ("new mtc_frame: %1 | MTC-FpT: %2 A3-FpT:%3\n",
mtc_frame, (4.0*qtr), session.frames_per_timecode_frame()));
- switch (port->parser()->mtc_running()) {
+ switch (port->self_parser().mtc_running()) {
case MTC_Backward:
mtc_frame -= mtc_off;
qtr *= -1.0;
if (first_mtc_timestamp == 0 || current.timestamp == 0) {
first_mtc_timestamp = now;
init_mtc_dll(mtc_frame, qtr);
+ mtc_frame_dll = mtc_frame;
+ ActiveChanged (true); // emit signal
}
current.guard1++;
current.position = mtc_frame;
/* XXX !!! thread safety ... called from MIDI I/O context
* on locate (via ::update_mtc_time())
*/
- DEBUG_TRACE (DEBUG::MTC, string_compose("MTC_Slave::update_mtc_status - TID:%1\n", ::pthread_self()));
+ DEBUG_TRACE (DEBUG::MTC, string_compose("MTC_Slave::update_mtc_status - TID:%1\n", pthread_name()));
return; // why was this fn needed anyway ? it just messes up things -> use reset.
busy_guard1++;
of acceptable MTC frames wide open. otherwise, shrink it down to just 2 video frames
ahead of the window root (taking direction into account).
*/
+
framecnt_t const d = (quarter_frame_duration * 4 * frame_tolerance);
- switch (port->parser()->mtc_running()) {
+ switch (port->self_parser().mtc_running()) {
case MTC_Forward:
window_begin = root;
transport_direction = 1;
break;
}
- DEBUG_TRACE (DEBUG::MTC, string_compose ("legal MTC window now %1 .. %2\n", window_begin, window_end));
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("reset MTC window @ %3, now %1 .. %2\n", window_begin, window_end, root));
}
void
* But this is only really a problem if the user performs manual
* seeks while transport is running and slaved to MTC.
*/
- oe = 2.0 * M_PI * double(inc/6.0) / double(session.frame_rate());
+ oe = 2.0 * M_PI * double(inc) / 2.0 / double(session.frame_rate());
be = 1.4142135623730950488 * oe;
ce = oe * oe;
}
/* main entry point from session_process.cc
- * in jack_process callback context */
+xo * in process callback context */
bool
MTC_Slave::speed_and_position (double& speed, framepos_t& pos)
{
- framepos_t now = session.engine().frame_time_at_cycle_start();
+ framepos_t now = session.engine().sample_time_at_cycle_start();
framepos_t sess_pos = session.transport_frame(); // corresponds to now
+ //sess_pos -= session.engine().frames_since_cycle_start();
SafeTime last;
- framecnt_t elapsed;
+ frameoffset_t elapsed;
+ bool engine_dll_reinitialized = false;
read_current (&last);
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("speed&pos: timestamp %1 speed %2 initstate %3 dir %4 tpos %5 now %6 last-in %7\n",
+ last.timestamp,
+ last.speed,
+ engine_dll_initstate,
+ transport_direction,
+ sess_pos,
+ now,
+ last_inbound_frame));
+
/* re-init engine DLL here when state changed (direction, first_mtc_timestamp) */
- if (last.timestamp == 0) { engine_dll_initstate = 0; }
- else if (engine_dll_initstate != transport_direction) {
+ if (last.timestamp == 0) {
+ engine_dll_initstate = 0;
+ } else if (engine_dll_initstate != transport_direction && last.speed != 0) {
engine_dll_initstate = transport_direction;
- init_engine_dll(last.position, session.engine().frames_per_cycle());
+ init_engine_dll(last.position, session.engine().samples_per_cycle());
+ engine_dll_reinitialized = true;
}
if (last.timestamp == 0) {
session.request_transport_speed (0);
engine_dll_initstate = 0;
queue_reset (false);
+ ActiveChanged (false);
DEBUG_TRACE (DEBUG::MTC, "MTC not seen for 2 frames - reset pending\n");
return false;
}
-
- DEBUG_TRACE (DEBUG::MTC, string_compose ("MTC::speed_and_position mtc-tme: %1 mtc-pos: %2\n", last.timestamp, last.position));
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("MTC::speed_and_position mtc-tme: %1 mtc-pos: %2 mtc-spd: %3\n", last.timestamp, last.position, last.speed));
DEBUG_TRACE (DEBUG::MTC, string_compose ("MTC::speed_and_position eng-tme: %1 eng-pos: %2\n", now, sess_pos));
double speed_flt = last.speed; ///< MTC speed from MTC-quarter-frame DLL
/* interpolate position according to speed and time since last quarter-frame*/
if (speed_flt == 0.0f) {
elapsed = 0;
- }
- else
- {
+ } else {
/* scale elapsed time by the current MTC speed */
- if (last.timestamp && (now > last.timestamp)) {
- elapsed = (framecnt_t) rint (speed_flt * (now - last.timestamp));
- } else {
- elapsed = 0;
- }
- if (give_slave_full_control_over_transport_speed()) {
- /* there is a frame-delta engine vs MTC position
- * mostly due to quantization and rounding of (speed * nframes)
- * thus we use an other DLL..
+ elapsed = (framecnt_t) rint (speed_flt * (now - last.timestamp));
+ if (give_slave_full_control_over_transport_speed() && !engine_dll_reinitialized) {
+ /* there is an engine vs MTC position frame-delta.
+ * This mostly due to quantization and rounding of (speed * nframes)
+ * but can also due to the session-process not calling
+ * speed_and_position() every cycle under some circumstances.
+ * Thus we use an other DLL to align the engine and the MTC
*/
/* update engine DLL and calculate speed */
te0 = te1;
te1 += be * e + ee2;
ee2 += ce * e;
- speed_flt = (te1 - te0) / double(session.engine().frames_per_cycle());
- DEBUG_TRACE (DEBUG::MTC, string_compose ("engine DLL t0:%1 t1:%2 err:%3 spd:%4 ddt:%5\n", te0, te1, e, speed_flt, ee2 - session.engine().frames_per_cycle() ));
+ speed_flt = (te1 - te0) / double(session.engine().samples_per_cycle());
+ DEBUG_TRACE (DEBUG::MTC, string_compose ("engine DLL t0:%1 t1:%2 err:%3 spd:%4 ddt:%5\n", te0, te1, e, speed_flt, ee2 - session.engine().samples_per_cycle() ));
}
}
* also see note in MTC_Slave::init_engine_dll
*/
if (!session.actively_recording()
- && ( (pos < 0) || (labs(pos - sess_pos) > 4 * resolution()) )
- ) {
+ && speed != 0
+ && ((pos < 0) || (labs(pos - sess_pos) > 3 * session.frame_rate()))) {
engine_dll_initstate = 0;
queue_reset (false);
}
+ /* provide a .1% deadzone to lock the speed */
+ if (fabs (speed - 1.0) <= 0.001)
+ speed = 1.0;
+
DEBUG_TRACE (DEBUG::MTC, string_compose ("MTCsync spd: %1 pos: %2 | last-pos: %3 elapsed: %4 delta: %5\n",
speed, pos, last.position, elapsed, pos - sess_pos));
+ current_delta = (pos - sess_pos);
+
return true;
}
return mtc_timecode;
}
-std::string
+std::string
MTC_Slave::approximate_current_position() const
{
SafeTime last;
read_current (&last);
+ if (last.timestamp == 0 || reset_pending) {
+ return " --:--:--:--";
+ }
return Timecode::timecode_format_sampletime(
last.position,
double(session.frame_rate()),
- 25, false);
+ Timecode::timecode_to_frames_per_second(mtc_timecode),
+ Timecode::timecode_has_drop_frames(mtc_timecode));
+}
+
+std::string
+MTC_Slave::approximate_current_delta() const
+{
+ char delta[80];
+ SafeTime last;
+ read_current (&last);
+ if (last.timestamp == 0 || reset_pending) {
+ snprintf(delta, sizeof(delta), "\u2012\u2012\u2012\u2012");
+ } else {
+ snprintf(delta, sizeof(delta), "\u0394<span foreground=\"green\" face=\"monospace\" >%s%s%" PRIi64 "</span>sm",
+ LEADINGZERO(abs(current_delta)), PLUSMINUS(-current_delta), abs(current_delta));
+ }
+ return std::string(delta);
}
projects / ardour.git / blobdiff