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[media] videodev2.h Add HSV encoding

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Some hardware maps the Hue between 0 and 255 instead of 0-179. Support
this format with a new field hsv_enc.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Ricardo Ribalda Delgado 2016-08-22 06:28:07 -03:00 committed by Mauro Carvalho Chehab
parent f1eb926d1d
commit 8a0d62af93
1 changed files with 27 additions and 5 deletions
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32
include/uapi/linux/videodev2.h
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@ -334,6 +334,19 @@ enum v4l2_ycbcr_encoding {
V4L2_YCBCR_ENC_SMPTE240M = 8,
};
/*
* enum v4l2_hsv_encoding values should not collide with the ones from
* enum v4l2_ycbcr_encoding.
*/
enum v4l2_hsv_encoding {
/* Hue mapped to 0 - 179 */
V4L2_HSV_ENC_180 = 128,
/* Hue mapped to 0-255 */
V4L2_HSV_ENC_256 = 129,
};
/*
* Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding.
* This depends on the colorspace.
@ -362,9 +375,10 @@ enum v4l2_quantization {
* This depends on whether the image is RGB or not, the colorspace and the
* Y'CbCr encoding.
*/
#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, colsp, ycbcr_enc) \
(((is_rgb) && (colsp) == V4L2_COLORSPACE_BT2020) ? V4L2_QUANTIZATION_LIM_RANGE : \
(((is_rgb) || (ycbcr_enc) == V4L2_YCBCR_ENC_XV601 || \
#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb_or_hsv, colsp, ycbcr_enc) \
(((is_rgb_or_hsv) && (colsp) == V4L2_COLORSPACE_BT2020) ? \
V4L2_QUANTIZATION_LIM_RANGE : \
(((is_rgb_or_hsv) || (ycbcr_enc) == V4L2_YCBCR_ENC_XV601 || \
(ycbcr_enc) == V4L2_YCBCR_ENC_XV709 || (colsp) == V4L2_COLORSPACE_JPEG) || \
(colsp) == V4L2_COLORSPACE_ADOBERGB || (colsp) == V4L2_COLORSPACE_SRGB ? \
V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE))
@ -462,7 +476,12 @@ struct v4l2_pix_format {
__u32 colorspace; /* enum v4l2_colorspace */
__u32 priv; /* private data, depends on pixelformat */
__u32 flags; /* format flags (V4L2_PIX_FMT_FLAG_*) */
__u32 ycbcr_enc; /* enum v4l2_ycbcr_encoding */
union {
/* enum v4l2_ycbcr_encoding */
__u32 ycbcr_enc;
/* enum v4l2_hsv_encoding */
__u32 hsv_enc;
};
__u32 quantization; /* enum v4l2_quantization */
__u32 xfer_func; /* enum v4l2_xfer_func */
};
@ -2012,7 +2031,10 @@ struct v4l2_pix_format_mplane {
struct v4l2_plane_pix_format plane_fmt[VIDEO_MAX_PLANES];
__u8 num_planes;
__u8 flags;
__u8 ycbcr_enc;
union {
__u8 ycbcr_enc;
__u8 hsv_enc;
};
__u8 quantization;
__u8 xfer_func;
__u8 reserved[7];