myvtm/Other/libvideoframework/videoutil.h

#ifndef VIDEOUTIL_H
#define VIDEOUTIL_H

#ifdef __cplusplus
extern "C" {
#endif

#define VIDEO_FORMAT_I420       0x01
#define VIDEO_FORMAT_RGB24      0x02

#define IP_UDP_HEADER_SIZE 		(20 + 8)
#define RTP_HEADER_SIZE			12

typedef struct video_frame {
    unsigned char *data[4];
    int linesize[4];
    int width;
    int height;
    int format; /* VIDEO_FORMAT_xxx */
}video_frame;

typedef union video_timestamp {
    struct {
        unsigned int lo;
        int hi;
    }u32;
    __int64 u64;
}video_timestamp;

typedef struct __video_frame_scale_t video_frame_scale_t;

/**
 * alloc memory for a video frame, return 0 on success
 */
int video_frame_alloc(int width, int height, int format, video_frame *frame);

/**
 * free memory of a video frame
 */
void video_frame_free(video_frame *frame);

/**
 * copy src frame to dst frame, return 0 on success
 */
int video_frame_copy(video_frame *dst, video_frame *src);

int video_get_timestamp(video_timestamp *p_ts);
int video_get_timestamp_freq(video_timestamp *p_freq);

/**
 * save videoframe as bmp file, only accept rgb24 frame
 * @param bmpfile save file path
 * @param frame the rgb24 format frame
 * @return 0 on success
 */
int video_frame_save_bmpfile(const char*bmpfile, video_frame *frame);

video_frame *video_frame_new(int width, int height, int format);
void video_frame_delete(video_frame *frame);

int video_frame_fill_black(video_frame *frame);

video_frame_scale_t *video_frame_scale_create(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat);
void video_frame_scale_destroy(video_frame_scale_t *);
int video_frame_scale_process(video_frame_scale_t *scale, unsigned char **src_data, int *src_linesize, int y, int h, unsigned char **dst_data, int *dst_linesize);

#ifdef __cplusplus
}//extern "C" {
#endif

#endif // VIDEOUTIL_H