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