diff options
Diffstat (limited to 'src/server/RunContext.hpp')
| -rw-r--r-- | src/server/RunContext.hpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/server/RunContext.hpp b/src/server/RunContext.hpp index 803e0c3b..eba30545 100644 --- a/src/server/RunContext.hpp +++ b/src/server/RunContext.hpp @@ -87,6 +87,18 @@ public: /** Return true iff any notifications are pending. */ bool pending_notifications() const { return _event_sink->read_space(); } + /** Return the duration of this cycle in microseconds. + * + * This is the cycle length in frames (nframes) converted to microseconds, + * that is, the amount of real time that this cycle's audio represents. + * Note that this is unrelated to the amount of time available to execute a + * cycle (other than the fact that it must be processed in significantly + * less time to avoid a dropout when running in real time). + */ + inline uint64_t duration() const { + return (uint64_t)_nframes * 1e6 / _rate; + } + inline void locate(FrameTime s, SampleCount nframes) { _start = s; _end = s + nframes; @@ -103,6 +115,7 @@ public: } void set_priority(int priority); + void set_rate(SampleCount rate) { _rate = rate; } inline Engine& engine() const { return _engine; } inline Task* task() const { return _task; } @@ -112,6 +125,7 @@ public: inline FrameTime end() const { return _end; } inline SampleCount offset() const { return _offset; } inline SampleCount nframes() const { return _nframes; } + inline SampleCount rate() const { return _rate; } inline bool realtime() const { return _realtime; } protected: @@ -129,6 +143,7 @@ protected: FrameTime _end; ///< End frame of this cycle, timeline relative SampleCount _offset; ///< Offset into data buffers SampleCount _nframes; ///< Number of frames past offset to process + SampleCount _rate; ///< Sample rate in Hz bool _realtime; ///< True iff context is hard realtime bool _copy; ///< True iff this is a copy (shared event_sink) }; |