scrcpy/app/src/frames.h

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#ifndef FRAMES_H
#define FRAMES_H
#include <SDL2/SDL_mutex.h>
#include <SDL2/SDL_stdinc.h>
#include "config.h"
// forward declarations
typedef struct AVFrame AVFrame;
struct frames {
AVFrame *decoding_frame;
AVFrame *rendering_frame;
SDL_mutex *mutex;
#ifndef SKIP_FRAMES
SDL_cond *rendering_frame_consumed_cond;
#endif
SDL_bool rendering_frame_consumed;
};
SDL_bool frames_init(struct frames *frames);
void frames_destroy(struct frames *frames);
// set the decoder frame as ready for rendering
// this function locks frames->mutex during its execution
// returns true if the previous frame had been consumed
SDL_bool frames_offer_decoded_frame(struct frames *frames);
// mark the rendering frame as consumed and return it
// MUST be called with frames->mutex locked!!!
// the caller is expected to render the returned frame to some texture before
// unlocking frames->mutex
const AVFrame *frames_consume_rendered_frame(struct frames *frames);
#endif