#include "pbd/error.h"
#include "pbd/failed_constructor.h"
#include "pbd/pthread_utils.h"
+#include "pbd/convert.h"
#include "midi++/port.h"
-#include "midi++/jack.h"
#include "ardour/debug.h"
#include "ardour/slave.h"
-#include "ardour/session.h"
-#include "ardour/audioengine.h"
-#include "ardour/cycles.h"
#include "ardour/tempo.h"
-
#include "i18n.h"
using namespace std;
using namespace MIDI;
using namespace PBD;
-#define DEBUG_MIDI_CLOCK 1
-
MIDIClock_Slave::MIDIClock_Slave (Session& s, MIDI::Port& p, int ppqn)
: ppqn (ppqn)
, bandwidth (1.0 / 60.0) // 1 BpM = 1 / 60 Hz
DEBUG_TRACE (DEBUG::MidiClock, string_compose ("MIDIClock_Slave: connecting to port %1\n", port->name()));
- port->input()->timing.connect_same_thread (port_connections, boost::bind (&MIDIClock_Slave::update_midi_clock, this, _1, _2));
- port->input()->start.connect_same_thread (port_connections, boost::bind (&MIDIClock_Slave::start, this, _1, _2));
- port->input()->contineu.connect_same_thread (port_connections, boost::bind (&MIDIClock_Slave::contineu, this, _1, _2));
- port->input()->stop.connect_same_thread (port_connections, boost::bind (&MIDIClock_Slave::stop, this, _1, _2));
- port->input()->position.connect_same_thread (port_connections, boost::bind (&MIDIClock_Slave::position, this, _1, _2, 3));
+ port->parser()->timing.connect_same_thread (port_connections, boost::bind (&MIDIClock_Slave::update_midi_clock, this, _1, _2));
+ port->parser()->start.connect_same_thread (port_connections, boost::bind (&MIDIClock_Slave::start, this, _1, _2));
+ port->parser()->contineu.connect_same_thread (port_connections, boost::bind (&MIDIClock_Slave::contineu, this, _1, _2));
+ port->parser()->stop.connect_same_thread (port_connections, boost::bind (&MIDIClock_Slave::stop, this, _1, _2));
+ port->parser()->position.connect_same_thread (port_connections, boost::bind (&MIDIClock_Slave::position, this, _1, _2, 3));
}
void
-MIDIClock_Slave::calculate_one_ppqn_in_frames_at(nframes64_t time)
+MIDIClock_Slave::calculate_one_ppqn_in_frames_at(framepos_t time)
{
const Tempo& current_tempo = session->tempo_map().tempo_at(time);
- const Meter& current_meter = session->tempo_map().meter_at(time);
- double frames_per_beat =
- current_tempo.frames_per_beat(session->frame_rate(),
- current_meter);
+ double frames_per_beat = current_tempo.frames_per_beat(session->frame_rate());
double quarter_notes_per_beat = 4.0 / current_tempo.note_type();
double frames_per_quarter_note = frames_per_beat / quarter_notes_per_beat;
// DEBUG_TRACE (DEBUG::MidiClock, string_compose ("at %1, one ppqn = %2\n", time, one_ppqn_in_frames));
}
-ARDOUR::nframes64_t
+ARDOUR::framepos_t
MIDIClock_Slave::calculate_song_position(uint16_t song_position_in_sixteenth_notes)
{
- nframes64_t song_position_frames = 0;
+ framepos_t song_position_frames = 0;
for (uint16_t i = 1; i <= song_position_in_sixteenth_notes; ++i) {
// one quarter note contains ppqn pulses, so a sixteenth note is ppqn / 4 pulses
calculate_one_ppqn_in_frames_at(song_position_frames);
- song_position_frames += one_ppqn_in_frames * (nframes64_t)(ppqn / 4);
+ song_position_frames += one_ppqn_in_frames * (framepos_t)(ppqn / 4);
}
return song_position_frames;
}
void
-MIDIClock_Slave::update_midi_clock (Parser& /*parser*/, nframes64_t timestamp)
+MIDIClock_Slave::update_midi_clock (Parser& /*parser*/, framepos_t timestamp)
{
// some pieces of hardware send MIDI Clock all the time
if ( (!_starting) && (!_started) ) {
calculate_one_ppqn_in_frames_at(should_be_position);
- nframes64_t elapsed_since_start = timestamp - first_timestamp;
+ framepos_t elapsed_since_start = timestamp - first_timestamp;
double error = 0;
if (_starting || last_timestamp == 0) {
t1 * session->frame_rate(),
session->frame_rate(),
((t1 - t0) * session->frame_rate()) / one_ppqn_in_frames));
-
+
last_timestamp = timestamp;
}
void
-MIDIClock_Slave::start (Parser& /*parser*/, nframes64_t timestamp)
+MIDIClock_Slave::start (Parser& /*parser*/, framepos_t timestamp)
{
DEBUG_TRACE (DEBUG::MidiClock, string_compose ("MIDIClock_Slave got start message at time %1 engine time %2\n", timestamp, session->frame_time()));
_starting = true;
_started = true;
-
+
// session->request_locate(0, false);
+ current_delta = 0;
}
void
-MIDIClock_Slave::contineu (Parser& /*parser*/, nframes64_t /*timestamp*/)
+MIDIClock_Slave::contineu (Parser& /*parser*/, framepos_t /*timestamp*/)
{
DEBUG_TRACE (DEBUG::MidiClock, "MIDIClock_Slave got continue message\n");
void
-MIDIClock_Slave::stop (Parser& /*parser*/, nframes64_t /*timestamp*/)
+MIDIClock_Slave::stop (Parser& /*parser*/, framepos_t /*timestamp*/)
{
DEBUG_TRACE (DEBUG::MidiClock, "MIDIClock_Slave got stop message\n");
// that is the position of the last MIDI Clock
// message and that is probably what the master
// expects where we are right now
- nframes64_t stop_position = should_be_position;
+ framepos_t stop_position = should_be_position;
// find out the last MIDI beat: go back #midi_clocks mod 6
// and lets hope the tempo didnt change in those last 6 beats :)
assert((lsb <= 0x7f) && (msb <= 0x7f));
uint16_t position_in_sixteenth_notes = (uint16_t(msb) << 7) | uint16_t(lsb);
- nframes64_t position_in_frames = calculate_song_position(position_in_sixteenth_notes);
+ framepos_t position_in_frames = calculate_song_position(position_in_sixteenth_notes);
DEBUG_TRACE (DEBUG::MidiClock, string_compose ("Song Position: %1 frames: %2\n", position_in_sixteenth_notes, position_in_frames));
}
bool
-MIDIClock_Slave::stop_if_no_more_clock_events(nframes64_t& pos, nframes64_t now)
+MIDIClock_Slave::stop_if_no_more_clock_events(framepos_t& pos, framepos_t now)
{
/* no timecode for 1/4 second ? conclude that its stopped */
if (last_timestamp &&
}
bool
-MIDIClock_Slave::speed_and_position (double& speed, nframes64_t& pos)
+MIDIClock_Slave::speed_and_position (double& speed, framepos_t& pos)
{
if (!_started || _starting) {
speed = 0.0;
return true;
}
- nframes64_t engine_now = session->frame_time();
+ framepos_t engine_now = session->frame_time();
if (stop_if_no_more_clock_events(pos, engine_now)) {
return false;
// calculate speed
speed = ((t1 - t0) * session->frame_rate()) / one_ppqn_in_frames;
-
+
// provide a 3% deadzone to lock the speed
if (fabs(speed - 1.0) <= 0.03)
speed = 1.0;
if (engine_now > last_timestamp) {
// we are in between MIDI clock messages
// so we interpolate position according to speed
- nframes64_t elapsed = engine_now - last_timestamp;
- pos = (nframes64_t) (should_be_position + double(elapsed) * speed);
+ framecnt_t elapsed = engine_now - last_timestamp;
+ pos = (framepos_t) (should_be_position + double(elapsed) * speed);
} else {
// A new MIDI clock message has arrived this cycle
pos = should_be_position;
}
DEBUG_TRACE (DEBUG::MidiClock, string_compose ("speed_and_position: %1 & %2 <-> %3 (transport)\n", speed, pos, session->transport_frame()));
+ current_delta = pos - session->transport_frame();
return true;
}
-ARDOUR::nframes_t
+ARDOUR::framecnt_t
MIDIClock_Slave::resolution() const
{
// one beat
- return (nframes_t) one_ppqn_in_frames * ppqn;
+ return (framecnt_t) one_ppqn_in_frames * ppqn;
+}
+
+std::string
+MIDIClock_Slave::approximate_current_delta() const
+{
+ char delta[80];
+ if (last_timestamp == 0 || _starting) {
+ 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