is_hdtv 255 include/uapi/linux/videodev2.h #define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \ is_hdtv 257 include/uapi/linux/videodev2.h ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB))