#include "clip_list.h"
-void start_player_thread();
-void play_clip(const Clip &clip, unsigned stream_idx);
+extern "C" {
+#include <libavformat/avio.h>
+}
+
+#include <condition_variable>
+#include <functional>
+#include <mutex>
+
+class JPEGFrameView;
+class VideoStream;
+class QSurface;
+class QSurfaceFormat;
+
+class Player {
+public:
+ Player(JPEGFrameView *destination, bool also_output_to_stream);
+
+ void play_clip(const Clip &clip, unsigned stream_idx);
+ void override_angle(unsigned stream_idx); // For the current clip only.
+
+ // Not thread-safe to set concurrently with playing.
+ // Will be called back from the player thread.
+ using done_callback_func = std::function<void()>;
+ void set_done_callback(done_callback_func cb) { done_callback = cb; }
+
+ // Not thread-safe to set concurrently with playing.
+ // Will be called back from the player thread.
+ using next_clip_callback_func = std::function<Clip()>;
+ void set_next_clip_callback(next_clip_callback_func cb) { next_clip_callback = cb; }
+
+ // Not thread-safe to set concurrently with playing.
+ // Will be called back from the player thread.
+ using progress_callback_func = std::function<void(double played_this_clip, double total_length)>;
+ void set_progress_callback(progress_callback_func cb) { progress_callback = cb; }
+
+private:
+ void thread_func(bool also_output_to_stream);
+ void open_output_stream();
+ static int write_packet2_thunk(void *opaque, uint8_t *buf, int buf_size, AVIODataMarkerType type, int64_t time);
+ int write_packet2(uint8_t *buf, int buf_size, AVIODataMarkerType type, int64_t time);
+
+ // Find the frame immediately before and after this point.
+ // Returns false if pts is after the last frame.
+ bool find_surrounding_frames(int64_t pts, int stream_idx, int64_t *pts_lower, int64_t *pts_upper);
+
+ JPEGFrameView *destination;
+ done_callback_func done_callback;
+ next_clip_callback_func next_clip_callback;
+ progress_callback_func progress_callback;
+
+ std::mutex mu;
+ Clip current_clip; // Under mu. Can have pts_in = -1 for no clip.
+ unsigned current_stream_idx; // Under mu.
+
+ std::mutex queue_state_mu;
+ std::condition_variable new_clip_changed;
+ bool new_clip_ready = false; // Under queue_state_mu.
+ bool playing = false; // Under queue_state_mu.
+ int override_stream_idx = -1; // Under queue_state_mu.
+
+ std::unique_ptr<VideoStream> video_stream; // Can be nullptr.
+
+ // under queue_state_mu. Part of this instead of VideoStream so that we own
+ // its lock and can sleep on it.
+ size_t num_queued_frames = 0;
+ static constexpr size_t max_queued_frames = 10;
+};
#endif // !defined(_PLAYER_H)