void place_rectangle(movit::Effect *resample_effect, movit::Effect *padding_effect, float x0, float y0, float x1, float y1);
void thread_func();
void audio_thread_func();
- void process_audio_one_frame(int64_t frame_pts_int);
+ void process_audio_one_frame(int64_t frame_pts_int, int num_samples);
void subsample_chroma(GLuint src_tex, GLuint dst_dst);
void release_display_frame(DisplayFrame *frame);
double pts() { return double(pts_int) / TIMEBASE; }
bool new_data_ready = false; // Whether new_frame contains anything.
bool should_quit = false;
RefCountedFrame new_frame;
+ int64_t new_frame_length; // In TIMEBASE units.
GLsync new_data_ready_fence; // Whether new_frame is ready for rendering.
std::condition_variable new_data_ready_changed; // Set whenever new_data_ready is changed.
unsigned dropped_frames = 0; // Before new_frame.
+ // Accumulated errors in number of 1/TIMEBASE samples. If OUTPUT_FREQUENCY divided by
+ // frame rate is integer, will always stay zero.
+ unsigned fractional_samples = 0;
+
std::mutex audio_mutex;
std::unique_ptr<ResamplingQueue> resampling_queue; // Under audio_mutex.
int last_timecode = -1; // Unwrapped.
+ int64_t next_local_pts = 0; // Beginning of next frame, in TIMEBASE units.
};
CaptureCard cards[MAX_CARDS]; // protected by <bmusb_mutex>
std::unique_ptr<ALSAOutput> alsa;
+ struct AudioTask {
+ int64_t pts_int;
+ int num_samples;
+ };
std::mutex audio_mutex;
- std::condition_variable audio_pts_queue_changed;
- std::queue<int64_t> audio_pts_queue;
+ std::condition_variable audio_task_queue_changed;
+ std::queue<AudioTask> audio_task_queue; // Under audio_mutex.
};
extern Mixer *global_mixer;