video_decoder.h 1.8 KB

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  1. #ifndef _LINUX_VIDEO_DECODER_H
  2. #define _LINUX_VIDEO_DECODER_H
  3. #define HAVE_VIDEO_DECODER 1
  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. DECODER_GET_STATUS returns the following flags. The only one you need is
  16. DECODER_STATUS_GOOD, the others are just nice things to know.
  17. */
  18. #define DECODER_STATUS_GOOD 1 /* receiving acceptable input */
  19. #define DECODER_STATUS_COLOR 2 /* receiving color information */
  20. #define DECODER_STATUS_PAL 4 /* auto detected */
  21. #define DECODER_STATUS_NTSC 8 /* auto detected */
  22. #define DECODER_STATUS_SECAM 16 /* auto detected */
  23. struct video_decoder_init {
  24. unsigned char len;
  25. const unsigned char *data;
  26. };
  27. #define DECODER_GET_CAPABILITIES _IOR('d', 1, struct video_decoder_capability)
  28. #define DECODER_GET_STATUS _IOR('d', 2, int)
  29. #define DECODER_SET_NORM _IOW('d', 3, int)
  30. #define DECODER_SET_INPUT _IOW('d', 4, int) /* 0 <= input < #inputs */
  31. #define DECODER_SET_OUTPUT _IOW('d', 5, int) /* 0 <= output < #outputs */
  32. #define DECODER_ENABLE_OUTPUT _IOW('d', 6, int) /* boolean output enable control */
  33. #define DECODER_SET_PICTURE _IOW('d', 7, struct video_picture)
  34. #define DECODER_SET_GPIO _IOW('d', 8, int) /* switch general purpose pin */
  35. #define DECODER_INIT _IOW('d', 9, struct video_decoder_init) /* init internal registers at once */
  36. #define DECODER_SET_VBI_BYPASS _IOW('d', 10, int) /* switch vbi bypass */
  37. #define DECODER_DUMP _IO('d', 192) /* debug hook */
  38. #endif