diff options
Diffstat (limited to 'libs/ardour/ardour/transport_master.h')
| -rw-r--r-- | libs/ardour/ardour/transport_master.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libs/ardour/ardour/transport_master.h b/libs/ardour/ardour/transport_master.h index f6dae4bff1..e4fee4bba2 100644 --- a/libs/ardour/ardour/transport_master.h +++ b/libs/ardour/ardour/transport_master.h @@ -245,6 +245,14 @@ class LIBARDOUR_API TransportMaster : public PBD::Stateful { virtual samplecnt_t resolution() const = 0; /** + * @return - the expected update interval for the data source used by + * this transport master. Even if the data is effectively continuous, + * this number indicates how long it is between changes to the known + * position of the master. + */ + virtual samplecnt_t update_interval() const = 0; + + /** * @return - when returning true, ARDOUR will wait for seekahead_distance() before transport * starts rolling */ @@ -409,6 +417,7 @@ class LIBARDOUR_API MTC_TransportMaster : public TimecodeTransportMaster, public bool ok() const; void handle_locate (const MIDI::byte*); + samplecnt_t update_interval () const; samplecnt_t resolution () const; bool requires_seekahead () const { return false; } samplecnt_t seekahead_distance() const; @@ -474,6 +483,7 @@ public: bool locked() const; bool ok() const; + samplecnt_t update_interval () const; samplecnt_t resolution () const; bool requires_seekahead () const { return false; } samplecnt_t seekahead_distance () const { return 0; } @@ -538,6 +548,7 @@ class LIBARDOUR_API MIDIClock_TransportMaster : public TransportMaster, public T bool ok() const; bool starting() const; + samplecnt_t update_interval () const; samplecnt_t resolution () const; bool requires_seekahead () const { return false; } void init (); @@ -597,6 +608,7 @@ class LIBARDOUR_API Engine_TransportMaster : public TransportMaster bool starting() const { return _starting; } bool locked() const; bool ok() const; + samplecnt_t update_interval () const; samplecnt_t resolution () const { return 1; } bool requires_seekahead () const { return false; } bool sample_clock_synced() const { return true; } |