diff options
Diffstat (limited to 'include/uapi/linux/videodev2.h')
| -rw-r--r-- | include/uapi/linux/videodev2.h | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 003a91292a4f..3d5fc72d53a7 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -240,6 +240,42 @@ enum v4l2_colorspace { ((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \ ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB)) +enum v4l2_xfer_func { + /* + * Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions + * for the various colorspaces: + * + * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M, + * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and + * V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709 + * + * V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB + * + * V4L2_COLORSPACE_ADOBERGB: V4L2_XFER_FUNC_ADOBERGB + * + * V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M + * + * V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE + */ + V4L2_XFER_FUNC_DEFAULT = 0, + V4L2_XFER_FUNC_709 = 1, + V4L2_XFER_FUNC_SRGB = 2, + V4L2_XFER_FUNC_ADOBERGB = 3, + V4L2_XFER_FUNC_SMPTE240M = 4, + V4L2_XFER_FUNC_NONE = 5, +}; + +/* + * Determine how XFER_FUNC_DEFAULT should map to a proper transfer function. + * This depends on the colorspace. + */ +#define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \ + ((colsp) == V4L2_XFER_FUNC_ADOBERGB ? V4L2_XFER_FUNC_ADOBERGB : \ + ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \ + ((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \ + ((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG ? \ + V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709)))) + enum v4l2_ycbcr_encoding { /* * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the @@ -409,6 +445,7 @@ struct v4l2_pix_format { __u32 flags; /* format flags (V4L2_PIX_FMT_FLAG_*) */ __u32 ycbcr_enc; /* enum v4l2_ycbcr_encoding */ __u32 quantization; /* enum v4l2_quantization */ + __u32 xfer_func; /* enum v4l2_xfer_func */ }; /* Pixel format FOURCC depth Description */ @@ -1907,6 +1944,7 @@ struct v4l2_plane_pix_format { * @flags: format flags (V4L2_PIX_FMT_FLAG_*) * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding * @quantization: enum v4l2_quantization, colorspace quantization + * @xfer_func: enum v4l2_xfer_func, colorspace transfer function */ struct v4l2_pix_format_mplane { __u32 width; @@ -1920,7 +1958,8 @@ struct v4l2_pix_format_mplane { __u8 flags; __u8 ycbcr_enc; __u8 quantization; - __u8 reserved[8]; + __u8 xfer_func; + __u8 reserved[7]; } __attribute__ ((packed)); /** |