ref: a005abe2701b878770544e2e09f41ab9e2a399e7
dir: /frame.h/
typedef struct Frame Frame;
struct Frame {
uvlong dt;
int w, h;
struct {
int left, top, right, bottom;
}crop;
u8int *yuv[3];
int ystride;
int uvstride;
u8int data[1];
};
Frame *newframe(int w, int h, u8int *yuv[3], int ystride, int vstride);