* @param position - The transport position requested
* @return - The return value is currently ignored (see Session::follow_slave)
*/
- virtual bool speed_and_position (double& speed, framepos_t& position) = 0;
+ virtual bool speed_and_position (double& speed, samplepos_t& position) = 0;
/**
* reports to ARDOUR whether the Slave is currently synced to its external
* @return - the timing resolution of the Slave - If the distance of ARDOURs transport
* to the slave becomes greater than the resolution, sound will stop
*/
- virtual framecnt_t resolution() const = 0;
+ virtual samplecnt_t resolution() const = 0;
/**
* @return - when returning true, ARDOUR will wait for seekahead_distance() before transport
virtual bool requires_seekahead () const = 0;
/**
- * @return the number of frames that this slave wants to seek ahead. Relevant
+ * @return the number of samples that this slave wants to seek ahead. Relevant
* only if requires_seekahead() returns true.
*/
- virtual framecnt_t seekahead_distance() const { return 0; }
+ virtual samplecnt_t seekahead_distance() const { return 0; }
/**
* @return - when returning true, ARDOUR will use transport speed 1.0 no matter what
public:
virtual ~ISlaveSessionProxy() {}
virtual TempoMap& tempo_map() const { return *((TempoMap *) 0); }
- virtual framecnt_t frame_rate() const { return 0; }
- virtual pframes_t frames_per_cycle() const { return 0; }
- virtual framepos_t audible_frame () const { return 0; }
- virtual framepos_t transport_frame () const { return 0; }
- virtual pframes_t frames_since_cycle_start () const { return 0; }
- virtual framepos_t sample_time_at_cycle_start() const { return 0; }
- virtual framepos_t frame_time () const { return 0; }
-
- virtual void request_locate (framepos_t /*frame*/, bool with_roll = false) {
+ virtual samplecnt_t sample_rate() const { return 0; }
+ virtual pframes_t samples_per_cycle() const { return 0; }
+ virtual samplepos_t audible_sample () const { return 0; }
+ virtual samplepos_t transport_sample () const { return 0; }
+ virtual pframes_t samples_since_cycle_start () const { return 0; }
+ virtual samplepos_t sample_time_at_cycle_start() const { return 0; }
+ virtual samplepos_t sample_time () const { return 0; }
+
+ virtual void request_locate (samplepos_t /*sample*/, bool with_roll = false) {
(void) with_roll;
}
virtual void request_transport_speed (double /*speed*/) {}
SlaveSessionProxy(Session &s) : session(s) {}
TempoMap& tempo_map() const;
- framecnt_t frame_rate() const;
- pframes_t frames_per_cycle() const;
- framepos_t audible_frame () const;
- framepos_t transport_frame () const;
- pframes_t frames_since_cycle_start () const;
- framepos_t sample_time_at_cycle_start() const;
- framepos_t frame_time () const;
-
- void request_locate (framepos_t frame, bool with_roll = false);
+ samplecnt_t sample_rate() const;
+ pframes_t samples_per_cycle() const;
+ samplepos_t audible_sample () const;
+ samplepos_t transport_sample () const;
+ pframes_t samples_since_cycle_start () const;
+ samplepos_t sample_time_at_cycle_start() const;
+ samplepos_t sample_time () const;
+
+ void request_locate (samplepos_t sample, bool with_roll = false);
void request_transport_speed (double speed);
};
struct LIBARDOUR_API SafeTime {
volatile int guard1;
- framepos_t position;
- framepos_t timestamp;
+ samplepos_t position;
+ samplepos_t timestamp;
double speed;
volatile int guard2;
*/
virtual std::string approximate_current_position() const = 0;
- framepos_t timecode_offset;
+ samplepos_t timecode_offset;
bool timecode_negative_offset;
PBD::Signal1<void, bool> ActiveChanged;
~MTC_Slave ();
void rebind (MidiPort&);
- bool speed_and_position (double&, framepos_t&);
+ bool speed_and_position (double&, samplepos_t&);
bool locked() const;
bool ok() const;
void handle_locate (const MIDI::byte*);
- framecnt_t resolution () const;
+ samplecnt_t resolution () const;
bool requires_seekahead () const { return false; }
- framecnt_t seekahead_distance() const;
+ samplecnt_t seekahead_distance() const;
bool give_slave_full_control_over_transport_speed() const;
Timecode::TimecodeFormat apparent_timecode_format() const;
PBD::ScopedConnection config_connection;
bool can_notify_on_unknown_rate;
- static const int frame_tolerance;
+ static const int sample_tolerance;
SafeTime current;
- framepos_t mtc_frame; /* current time */
+ samplepos_t mtc_frame; /* current time */
double mtc_frame_dll;
- framepos_t last_inbound_frame; /* when we got it; audio clocked */
+ samplepos_t last_inbound_frame; /* when we got it; audio clocked */
MIDI::byte last_mtc_fps_byte;
- framepos_t window_begin;
- framepos_t window_end;
- framepos_t first_mtc_timestamp;
+ samplepos_t window_begin;
+ samplepos_t window_end;
+ samplepos_t first_mtc_timestamp;
bool did_reset_tc_format;
Timecode::TimecodeFormat saved_tc_format;
Glib::Threads::Mutex reset_lock;
Timecode::TimecodeFormat a3e_timecode;
Timecode::Time timecode;
bool printed_timecode_warning;
- frameoffset_t current_delta;
+ sampleoffset_t current_delta;
/* DLL - chase MTC */
- double t0; ///< time at the beginning of the MTC quater frame
- double t1; ///< calculated end of the MTC quater frame
+ double t0; ///< time at the beginning of the MTC quater sample
+ double t1; ///< calculated end of the MTC quater sample
double e2; ///< second order loop error
double b, c, omega; ///< DLL filter coefficients
void queue_reset (bool with_pos);
void maybe_reset ();
- void update_mtc_qtr (MIDI::Parser&, int, framepos_t);
- void update_mtc_time (const MIDI::byte *, bool, framepos_t);
+ void update_mtc_qtr (MIDI::Parser&, int, samplepos_t);
+ void update_mtc_time (const MIDI::byte *, bool, samplepos_t);
void update_mtc_status (MIDI::MTC_Status);
void read_current (SafeTime *) const;
- void reset_window (framepos_t);
- bool outside_window (framepos_t) const;
- void init_mtc_dll(framepos_t, double);
- void init_engine_dll (framepos_t, framepos_t);
+ void reset_window (samplepos_t);
+ bool outside_window (samplepos_t) const;
+ void init_mtc_dll(samplepos_t, double);
+ void init_engine_dll (samplepos_t, samplepos_t);
void parse_timecode_offset();
void parameter_changed(std::string const & p);
};
LTC_Slave (Session&);
~LTC_Slave ();
- bool speed_and_position (double&, framepos_t&);
+ bool speed_and_position (double&, samplepos_t&);
bool locked() const;
bool ok() const;
- framecnt_t resolution () const;
+ samplecnt_t resolution () const;
bool requires_seekahead () const { return false; }
- framecnt_t seekahead_distance () const { return 0; }
+ samplecnt_t seekahead_distance () const { return 0; }
bool give_slave_full_control_over_transport_speed() const { return true; }
Timecode::TimecodeFormat apparent_timecode_format() const;
std::string approximate_current_delta() const;
private:
- void parse_ltc(const pframes_t, const Sample* const, const framecnt_t);
- void process_ltc(framepos_t const);
- void init_engine_dll (framepos_t, int32_t);
+ void parse_ltc(const pframes_t, const Sample* const, const samplecnt_t);
+ void process_ltc(samplepos_t const);
+ void init_engine_dll (samplepos_t, int32_t);
bool detect_discontinuity(LTCFrameExt *, int, bool);
bool detect_ltc_fps(int, bool);
- bool equal_ltc_frame_time(LTCFrame *a, LTCFrame *b);
+ bool equal_ltc_sample_time(LTCFrame *a, LTCFrame *b);
void reset (bool with_ts = true);
void resync_xrun();
void resync_latency();
Timecode::TimecodeFormat saved_tc_format;
LTCDecoder * decoder;
- double frames_per_ltc_frame;
+ double samples_per_ltc_frame;
Timecode::Time timecode;
- LTCFrameExt prev_frame;
+ LTCFrameExt prev_sample;
bool fps_detected;
- framecnt_t monotonic_cnt;
- framecnt_t last_timestamp;
- framecnt_t last_ltc_frame;
+ samplecnt_t monotonic_cnt;
+ samplecnt_t last_timestamp;
+ samplecnt_t last_ltc_sample;
double ltc_speed;
- frameoffset_t current_delta;
+ sampleoffset_t current_delta;
int delayedlocked;
int ltc_detect_fps_cnt;
/* DLL - chase LTC */
int transport_direction;
int engine_dll_initstate;
- double t0; ///< time at the beginning of the MTC quater frame
- double t1; ///< calculated end of the MTC quater frame
+ double t0; ///< time at the beginning of the MTC quater sample
+ double t1; ///< calculated end of the MTC quater sample
double e2; ///< second order loop error
double b, c; ///< DLL filter coefficients
};
~MIDIClock_Slave ();
void rebind (MidiPort&);
- bool speed_and_position (double&, framepos_t&);
+ bool speed_and_position (double&, samplepos_t&);
bool locked() const;
bool ok() const;
bool starting() const;
- framecnt_t resolution () const;
+ samplecnt_t resolution () const;
bool requires_seekahead () const { return false; }
bool give_slave_full_control_over_transport_speed() const { return true; }
ISlaveSessionProxy* session;
PBD::ScopedConnectionList port_connections;
- /// pulses per quarter note for one MIDI clock frame (default 24)
+ /// pulses per quarter note for one MIDI clock sample (default 24)
int ppqn;
- /// the duration of one ppqn in frame time
- double one_ppqn_in_frames;
+ /// the duration of one ppqn in sample time
+ double one_ppqn_in_samples;
/// the timestamp of the first MIDI clock message
- framepos_t first_timestamp;
+ samplepos_t first_timestamp;
/// the time stamp and should-be transport position of the last inbound MIDI clock message
- framepos_t last_timestamp;
+ samplepos_t last_timestamp;
double should_be_position;
/// the number of midi clock messages received (zero-based)
//the delay locked loop (DLL), see www.kokkinizita.net/papers/usingdll.pdf
- /// time at the beginning of the MIDI clock frame
+ /// time at the beginning of the MIDI clock sample
double t0;
- /// calculated end of the MIDI clock frame
+ /// calculated end of the MIDI clock sample
double t1;
/// loop error = real value - expected value
/// DLL filter coefficients
double b, c, omega;
- frameoffset_t current_delta;
+ sampleoffset_t current_delta;
void reset ();
- void start (MIDI::Parser& parser, framepos_t timestamp);
- void contineu (MIDI::Parser& parser, framepos_t timestamp);
- void stop (MIDI::Parser& parser, framepos_t timestamp);
+ void start (MIDI::Parser& parser, samplepos_t timestamp);
+ void contineu (MIDI::Parser& parser, samplepos_t timestamp);
+ void stop (MIDI::Parser& parser, samplepos_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(framepos_t time);
- framepos_t calculate_song_position(uint16_t song_position_in_sixteenth_notes);
+ void calculate_one_ppqn_in_samples_at(samplepos_t time);
+ samplepos_t calculate_song_position(uint16_t song_position_in_sixteenth_notes);
void calculate_filter_coefficients();
- void update_midi_clock (MIDI::Parser& parser, framepos_t timestamp);
+ void update_midi_clock (MIDI::Parser& parser, samplepos_t timestamp);
void read_current (SafeTime *) const;
- bool stop_if_no_more_clock_events(framepos_t& pos, framepos_t now);
+ bool stop_if_no_more_clock_events(samplepos_t& pos, samplepos_t now);
/// whether transport should be rolling
bool _started;
Engine_Slave (AudioEngine&);
~Engine_Slave ();
- bool speed_and_position (double& speed, framepos_t& pos);
+ bool speed_and_position (double& speed, samplepos_t& pos);
bool starting() const { return _starting; }
bool locked() const;
bool ok() const;
- framecnt_t resolution () const { return 1; }
+ samplecnt_t resolution () const { return 1; }
bool requires_seekahead () const { return false; }
bool is_always_synced() const { return true; }
projects / ardour.git / blobdiff