giflib.hpp

#ifndef LILLIPUT_GIFLIB_HPP
#define LILLIPUT_GIFLIB_HPP

#include "opencv.hpp"

#ifdef __cplusplus
extern "C" {
#endif

struct GifAnimationInfo {
    int loop_count;
    int frame_count;
    int bg_red;
    int bg_green;
    int bg_blue;
    int bg_alpha;
};

#define GIF_DISPOSE_NONE 0
#define GIF_DISPOSE_BACKGROUND 1

typedef struct giflib_decoder_struct* giflib_decoder;
typedef struct giflib_encoder_struct* giflib_encoder;

typedef enum {
    giflib_decoder_have_next_frame,
    giflib_decoder_eof,
    giflib_decoder_error,
} giflib_decoder_frame_state;

giflib_decoder giflib_decoder_create(const opencv_mat buf);
int giflib_decoder_get_width(const giflib_decoder d);
int giflib_decoder_get_height(const giflib_decoder d);
int giflib_decoder_get_num_frames(const giflib_decoder d);
int giflib_decoder_get_frame_width(const giflib_decoder d);
int giflib_decoder_get_frame_height(const giflib_decoder d);
int giflib_decoder_get_prev_frame_delay(const giflib_decoder d);
void giflib_decoder_release(giflib_decoder d);
giflib_decoder_frame_state giflib_decoder_decode_frame_header(giflib_decoder d);
bool giflib_decoder_decode_frame(giflib_decoder d, opencv_mat mat);
giflib_decoder_frame_state giflib_decoder_skip_frame(giflib_decoder d);

giflib_encoder giflib_encoder_create(void* buf, size_t buf_len);
bool giflib_encoder_init(giflib_encoder e, const giflib_decoder d, int width, int height);
bool giflib_encoder_encode_frame(giflib_encoder e, const giflib_decoder d, const opencv_mat frame);
bool giflib_encoder_flush(giflib_encoder e, const giflib_decoder d);
void giflib_encoder_release(giflib_encoder e);
int giflib_encoder_get_output_length(giflib_encoder e);
struct GifAnimationInfo giflib_decoder_get_animation_info(const giflib_decoder d);
int giflib_decoder_get_prev_frame_disposal(const giflib_decoder d);
#ifdef __cplusplus
}
#endif

#endif