#define _PLAYER_H 1
#include "clip_list.h"
+#include "queue_spot_holder.h"
extern "C" {
#include <libavformat/avio.h>
class QSurface;
class QSurfaceFormat;
-class Player {
+class Player : public QueueInterface {
public:
Player(JPEGFrameView *destination, bool also_output_to_stream);
- void play_clip(const Clip &clip, unsigned stream_idx);
+ void play_clip(const Clip &clip, size_t clip_idx, unsigned stream_idx);
void override_angle(unsigned stream_idx); // For the current clip only.
// Not thread-safe to set concurrently with playing.
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.
+ // The second parameter is the clip's position in the play list.
+ using next_clip_callback_func = std::function<std::pair<Clip, size_t>()>;
+ 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(const std::map<size_t, double> &progress)>;
+ void set_progress_callback(progress_callback_func cb) { progress_callback = cb; }
+
+ // QueueInterface.
+ void take_queue_spot() override;
+ void release_queue_spot() override;
+
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.
+ size_t current_clip_idx; // Under mu.
unsigned current_stream_idx; // Under mu.
std::mutex 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)