3 #include <condition_variable>
10 #include "jpeg_frame_view.h"
14 using namespace std::chrono;
16 extern mutex frame_mu;
17 extern vector<int64_t> frames[MAX_STREAMS];
19 void Player::thread_func()
22 // Wait until we're supposed to play something.
24 unique_lock<mutex> lock(cue_state_mu);
25 cue_is_playing.wait(lock, [this]{
26 return cue_state == PLAYING;
27 //return current_cue_status.origin != steady_clock::time_point::max();
34 lock_guard<mutex> lock2(mu);
36 stream_idx = current_stream_idx;
38 steady_clock::time_point origin = steady_clock::now();
39 int64_t pts_origin = clip.pts_in;
41 int64_t next_pts = pts_origin;
44 while (!eof) { // TODO: check for abort
45 // FIXME: assumes a given timebase.
47 steady_clock::time_point next_frame_start =
48 origin + microseconds((next_pts - pts_origin) * int(1000000 / speed) / 12800);
49 this_thread::sleep_until(next_frame_start);
50 destination->setFrame(stream_idx, next_pts);
52 // Find the next frame.
54 lock_guard<mutex> lock2(frame_mu);
55 auto it = upper_bound(frames[stream_idx].begin(),
56 frames[stream_idx].end(),
58 if (it == frames[stream_idx].end()) {
62 if (next_pts >= clip.pts_out) {
71 unique_lock<mutex> lock(cue_state_mu);
75 if (done_callback != nullptr) {
81 Player::Player(JPEGFrameView *destination)
82 : destination(destination)
84 thread(&Player::thread_func, this).detach();
87 void Player::play_clip(const Clip &clip, unsigned stream_idx)
90 lock_guard<mutex> lock(mu);
92 current_stream_idx = stream_idx;
96 lock_guard<mutex> lock(cue_state_mu);
98 cue_is_playing.notify_all();