1#ifndef _LINUX_VIDEO_DECODER_H 2#define _LINUX_VIDEO_DECODER_H 3 4#define HAVE_VIDEO_DECODER 1 5 6struct video_decoder_capability { /* this name is too long */ 7 __u32 flags; 8#define VIDEO_DECODER_PAL 1 /* can decode PAL signal */ 9#define VIDEO_DECODER_NTSC 2 /* can decode NTSC */ 10#define VIDEO_DECODER_SECAM 4 /* can decode SECAM */ 11#define VIDEO_DECODER_AUTO 8 /* can autosense norm */ 12#define VIDEO_DECODER_CCIR 16 /* CCIR-601 pixel rate (720 pixels per line) instead of square pixel rate */ 13 int inputs; /* number of inputs */ 14 int outputs; /* number of outputs */ 15}; 16 17/* 18DECODER_GET_STATUS returns the following flags. The only one you need is 19DECODER_STATUS_GOOD, the others are just nice things to know. 20*/ 21#define DECODER_STATUS_GOOD 1 /* receiving acceptable input */ 22#define DECODER_STATUS_COLOR 2 /* receiving color information */ 23#define DECODER_STATUS_PAL 4 /* auto detected */ 24#define DECODER_STATUS_NTSC 8 /* auto detected */ 25#define DECODER_STATUS_SECAM 16 /* auto detected */ 26 27struct video_decoder_init { 28 unsigned char len; 29 const unsigned char *data; 30}; 31 32#define DECODER_GET_CAPABILITIES _IOR('d', 1, struct video_decoder_capability) 33#define DECODER_GET_STATUS _IOR('d', 2, int) 34#define DECODER_SET_NORM _IOW('d', 3, int) 35#define DECODER_SET_INPUT _IOW('d', 4, int) /* 0 <= input < #inputs */ 36#define DECODER_SET_OUTPUT _IOW('d', 5, int) /* 0 <= output < #outputs */ 37#define DECODER_ENABLE_OUTPUT _IOW('d', 6, int) /* boolean output enable control */ 38#define DECODER_SET_PICTURE _IOW('d', 7, struct video_picture) 39#define DECODER_SET_GPIO _IOW('d', 8, int) /* switch general purpose pin */ 40#define DECODER_INIT _IOW('d', 9, struct video_decoder_init) /* init internal registers at once */ 41#define DECODER_SET_VBI_BYPASS _IOW('d', 10, int) /* switch vbi bypass */ 42 43#define DECODER_DUMP _IO('d', 192) /* debug hook */ 44 45 46#endif 47