On 08/18/2016 04:33 PM, Ricardo Ribalda Delgado wrote:
> 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.riba...@gmail.com>
> ---
> include/uapi/linux/videodev2.h | 32 +++++++++++++++++++++++++++-----
> 1 file changed, 27 insertions(+), 5 deletions(-)
>
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index 58ed8aedc196..71a4c3c13ee0 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -335,6 +335,19 @@ enum v4l2_ycbcr_encoding {
> };
>
> /*
> + * 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_yuv, colsp, ycbcr_enc) \
That should be is_rgb_or_hsv.
All other patches look OK.
It would be useful though if you could rebase on top of
https://git.linuxtv.org/hverkuil/media_tree.git/log/?h=sycc.
I have a pull request outstanding for that tree, and it will conflict with this
patch.
There might be other doc conflicts as well.
Regards,
Hans
> + (((is_rgb_or_yuv) && (colsp) == V4L2_COLORSPACE_BT2020) ? \
> + V4L2_QUANTIZATION_LIM_RANGE : \
> + (((is_rgb_or_yuv) || (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))
> @@ -460,7 +474,12 @@ 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 */
> };
> @@ -1993,7 +2012,10 @@ 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];
>
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