#include <jack/jack.h>
#include <sigc++/signal.h>
-#include "ardour/ardour.h"
-#include "ardour/session.h"
-#include "ardour/audioengine.h"
+#include "ardour/types.h"
#include "midi++/parser.h"
#include "midi++/types.h"
+class PIController;
+
namespace MIDI {
class Port;
}
namespace ARDOUR {
+
+class TempoMap;
+class Session;
+
/**
* @class Slave
*
* @param position - The transport position requested
* @return - The return value is currently ignored (see Session::follow_slave)
*/
- virtual bool speed_and_position (double& speed, nframes_t& position) = 0;
+ virtual bool speed_and_position (double& speed, nframes64_t& position) = 0;
/**
* reports to ARDOUR whether the Slave is currently synced to its external
virtual nframes_t resolution() const = 0;
/**
- * @return - when returning true, ARDOUR will wait for one second before transport
+ * @return - when returning true, ARDOUR will wait for seekahead_distance() before transport
* starts rolling
*/
virtual bool requires_seekahead () const = 0;
+ /**
+ * @return the number of frames that this slave wants to seek ahead. Relevant
+ * only if @func requires_seekahead() returns true.
+ */
+
+ virtual nframes64_t seekahead_distance() const { return 0; }
+
/**
* @return - when returning true, ARDOUR will use transport speed 1.0 no matter what
* the slave returns
class ISlaveSessionProxy {
public:
virtual TempoMap& tempo_map() const { return *((TempoMap *) 0); }
- virtual nframes_t frame_rate() const { return 0; }
- virtual nframes_t audible_frame () const { return 0; }
- virtual nframes_t transport_frame () const { return 0; }
- virtual nframes_t frames_since_cycle_start () const { return 0; }
- virtual nframes_t frame_time () const { return 0; }
+ virtual nframes_t frame_rate() const { return 0; }
+ virtual nframes64_t audible_frame () const { return 0; }
+ virtual nframes64_t transport_frame () const { return 0; }
+ virtual nframes_t frames_since_cycle_start () const { return 0; }
+ virtual nframes64_t frame_time () const { return 0; }
- virtual void request_locate (nframes_t /*frame*/, bool with_roll = false) {
+ virtual void request_locate (nframes64_t /*frame*/, bool with_roll = false) {
(void) with_roll;
}
virtual void request_transport_speed (double /*speed*/) {}
Session& session;
public:
- SlaveSessionProxy(Session &s) : session(s) {};
- TempoMap& tempo_map() const { return session.tempo_map(); }
- nframes_t frame_rate() const { return session.frame_rate(); }
- nframes_t audible_frame () const { return session.audible_frame(); }
- nframes_t transport_frame () const { return session.transport_frame(); }
- nframes_t frames_since_cycle_start () const { return session.engine().frames_since_cycle_start(); }
- nframes_t frame_time () const { return session.engine().frame_time(); }
-
- void request_locate (nframes_t frame, bool with_roll = false) { session.request_locate(frame, with_roll); }
- void request_transport_speed (double speed) { session.request_transport_speed(speed); }
+ SlaveSessionProxy(Session &s) : session(s) {}
+
+ TempoMap& tempo_map() const;
+ nframes_t frame_rate() const;
+ nframes64_t audible_frame () const;
+ nframes64_t transport_frame () const;
+ nframes_t frames_since_cycle_start () const;
+ nframes64_t frame_time () const;
+
+ void request_locate (nframes64_t frame, bool with_roll = false);
+ void request_transport_speed (double speed);
};
struct SafeTime {
- int guard1;
- nframes_t position;
- nframes_t timestamp;
- int guard2;
-
- SafeTime() {
- guard1 = 0;
- guard2 = 0;
- timestamp = 0;
- }
+ volatile int guard1;
+ nframes64_t position;
+ nframes64_t timestamp;
+ double speed;
+ volatile int guard2;
+
+ SafeTime() {
+ guard1 = 0;
+ position = 0;
+ timestamp = 0;
+ speed = 0;
+ guard2 = 0;
+ }
};
class MTC_Slave : public Slave, public sigc::trackable {
~MTC_Slave ();
void rebind (MIDI::Port&);
- bool speed_and_position (double&, nframes_t&);
+ bool speed_and_position (double&, nframes64_t&);
bool locked() const;
bool ok() const;
nframes_t resolution() const;
bool requires_seekahead () const { return true; }
+ nframes64_t seekahead_distance() const;
+ bool give_slave_full_control_over_transport_speed() const;
private:
Session& session;
MIDI::Port* port;
std::vector<sigc::connection> connections;
bool can_notify_on_unknown_rate;
+ PIController* pic;
SafeTime current;
nframes_t mtc_frame; /* current time */
nframes_t last_inbound_frame; /* when we got it; audio clocked */
MIDI::byte last_mtc_fps_byte;
-
- double mtc_speed;
- nframes_t first_mtc_frame;
- nframes_t first_mtc_time;
-
- static const int32_t accumulator_size = 128;
- double accumulator[accumulator_size];
- int32_t accumulator_index;
- bool have_first_accumulated_speed;
+ nframes64_t window_begin;
+ nframes64_t window_end;
+ nframes64_t last_mtc_timestamp;
+ nframes64_t last_mtc_frame;
+ bool did_reset_tc_format;
+ TimecodeFormat saved_tc_format;
+ size_t speed_accumulator_size;
+ double* speed_accumulator;
+ size_t speed_accumulator_cnt;
+ bool have_first_speed_accumulator;
+ double average_speed;
void reset ();
- void update_mtc_qtr (MIDI::Parser&);
- void update_mtc_time (const MIDI::byte *, bool);
- void update_mtc_status (MIDI::Parser::MTC_Status);
+ void update_mtc_qtr (MIDI::Parser&, int, nframes_t);
+ void update_mtc_time (const MIDI::byte *, bool, nframes_t);
+ void update_mtc_status (MIDI::MTC_Status);
void read_current (SafeTime *) const;
+ void reset_window (nframes64_t);
+ bool outside_window (nframes64_t) const;
+ void process_apparent_speed (double);
};
class MIDIClock_Slave : public Slave, public sigc::trackable {
~MIDIClock_Slave ();
void rebind (MIDI::Port&);
- bool speed_and_position (double&, nframes_t&);
+ bool speed_and_position (double&, nframes64_t&);
bool locked() const;
bool ok() const;
double b, c, omega;
void reset ();
- void start (MIDI::Parser& parser, nframes_t timestamp);
- void contineu (MIDI::Parser& parser, nframes_t timestamp);
- void stop (MIDI::Parser& parser, nframes_t timestamp);
+ void start (MIDI::Parser& parser, nframes64_t timestamp);
+ void contineu (MIDI::Parser& parser, nframes64_t timestamp);
+ void stop (MIDI::Parser& parser, nframes64_t timestamp);
void position (MIDI::Parser& parser, MIDI::byte* message, size_t size);
// we can't use continue because it is a C++ keyword
- void calculate_one_ppqn_in_frames_at(nframes_t time);
- nframes_t calculate_song_position(uint16_t song_position_in_sixteenth_notes);
+ void calculate_one_ppqn_in_frames_at(nframes64_t time);
+ nframes64_t calculate_song_position(uint16_t song_position_in_sixteenth_notes);
void calculate_filter_coefficients();
- void update_midi_clock (MIDI::Parser& parser, nframes_t timestamp);
+ void update_midi_clock (MIDI::Parser& parser, nframes64_t timestamp);
void read_current (SafeTime *) const;
- bool stop_if_no_more_clock_events(nframes_t& pos, nframes_t now);
+ bool stop_if_no_more_clock_events(nframes64_t& pos, nframes64_t now);
/// whether transport should be rolling
bool _started;
bool _starting;
};
-class ADAT_Slave : public Slave
-{
- public:
- ADAT_Slave () {}
- ~ADAT_Slave () {}
-
- bool speed_and_position (double& speed, nframes_t& pos) {
- speed = 0;
- pos = 0;
- return false;
- }
-
- bool locked() const { return false; }
- bool ok() const { return false; }
- nframes_t resolution() const { return 1; }
- bool requires_seekahead () const { return true; }
-};
-
class JACK_Slave : public Slave
{
public:
JACK_Slave (jack_client_t*);
~JACK_Slave ();
- bool speed_and_position (double& speed, nframes_t& pos);
+ bool speed_and_position (double& speed, nframes64_t& pos);
bool starting() const { return _starting; }
bool locked() const;
projects / ardour.git / blobdiff