/* * video_input.h *//* FAILURE and SUCCESS definitions for the video capture functions */#define VIN_FAILURE -1#define VIN_SUCCESS 0/* Describes a capture frame buffer */typedef struct VideoBuffer {    void   *start;    size_t  length;} VideoBuffer;/* Function prototypes */int video_input_setup(int *fdByRef, char *device, 			VideoBuffer **vidBufsPtrByRef, int *numVidBufsByRef, 			int *captureWidthByRef, int *captureHeightByRef);int video_input_cleanup(int fd, VideoBuffer *vidBufsPtr, int numVidBufs);inline int wait_for_frame(int fd);