hwaccel_libav_common.h

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#ifndef HWACCEL_LIBAV_COMMON_H
#define HWACCEL_LIBAV_COMMON_H
 
#include "types.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <libavcodec/avcodec.h>
#ifdef HWACC_COMMON_IMPL
#include <libavutil/hwcontext.h>
#endif
 
enum hw_accel_type hw_accel_from_pixfmt(enum AVPixelFormat);
enum hw_accel_type hw_accel_from_str(const char *str);
codec_t hw_accel_to_ug_pixfmt(enum hw_accel_type type);
const char *hw_accel_to_str(enum hw_accel_type type);
 
struct hw_accel_state {
        enum hw_accel_type type;
 
        bool copy; 
        AVFrame *tmp_frame; 
 
        void (*uninit)(struct hw_accel_state*); 
 
        void *ctx; 
};
 
void hwaccel_state_init(struct hw_accel_state *hwaccel);
 
void hwaccel_state_reset(struct hw_accel_state *hwaccel);
 
#ifdef HWACC_COMMON_IMPL
 
int create_hw_device_ctx(enum AVHWDeviceType type, AVBufferRef **device_ref);
 
int create_hw_frame_ctx(AVBufferRef *device_ref,
                int width,
                int height,
                enum AVPixelFormat format,
                enum AVPixelFormat sw_format,
                int decode_surfaces,
                AVBufferRef **ctx);
 
void transfer_frame(struct hw_accel_state *s, AVFrame *frame);
 
#endif //HWACC_COMMON_IMPL
 
#ifdef __cplusplus
}
#endif
 
#endif