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SubjectRe: [PATCH v5 1/5] v4l: Add new Colorimetry Class
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On 09/02/2021 17:24, Stanimir Varbanov wrote:
> Add Colorimetry control class for colorimetry controls
>
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
> ---
> drivers/media/v4l2-core/v4l2-ctrls.c | 7 ++++++-
> include/uapi/linux/v4l2-controls.h | 4 ++++
> 2 files changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
> index 016cf6204cbb..335cf354f51b 100644
> --- a/drivers/media/v4l2-core/v4l2-ctrls.c
> +++ b/drivers/media/v4l2-core/v4l2-ctrls.c
> @@ -1201,6 +1201,10 @@ const char *v4l2_ctrl_get_name(u32 id)
> case V4L2_CID_STATELESS_H264_SLICE_PARAMS: return "H264 Slice Parameters";
> case V4L2_CID_STATELESS_H264_DECODE_PARAMS: return "H264 Decode Parameters";
> case V4L2_CID_STATELESS_FWHT_PARAMS: return "FWHT Stateless Parameters";
> +
> + /* Colorimetry controls */
> + /* Keep the order of the 'case's the same as in v4l2-controls.h! */
> + case V4L2_CID_COLORIMETRY_CLASS: return "Colorimetry Controls";
> default:
> return NULL;
> }
> @@ -1389,8 +1393,9 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
> case V4L2_CID_RF_TUNER_CLASS:
> case V4L2_CID_DETECT_CLASS:
> case V4L2_CID_CODEC_STATELESS_CLASS:
> + case V4L2_CID_COLORIMETRY_CLASS:
> *type = V4L2_CTRL_TYPE_CTRL_CLASS;
> - /* You can neither read not write these */
> + /* You can neither read nor write these */
> *flags |= V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY;
> *min = *max = *step = *def = 0;
> break;
> diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
> index 039c0d7add1b..a41039559193 100644
> --- a/include/uapi/linux/v4l2-controls.h
> +++ b/include/uapi/linux/v4l2-controls.h
> @@ -66,6 +66,7 @@
> #define V4L2_CTRL_CLASS_RF_TUNER 0x00a20000 /* RF tuner controls */
> #define V4L2_CTRL_CLASS_DETECT 0x00a30000 /* Detection controls */
> #define V4L2_CTRL_CLASS_CODEC_STATELESS 0x00a40000 /* Stateless codecs controls */
> +#define V4L2_CTRL_CLASS_COLORIMETRY 0x00a50000 /* Colorimetry controls */
>
> /* User-class control IDs */
>
> @@ -1657,6 +1658,9 @@ struct v4l2_ctrl_fwht_params {
> __u32 quantization;
> };
>
> +#define V4L2_CID_COLORIMETRY_CLASS_BASE (V4L2_CTRL_CLASS_COLORIMETRY | 0x900)
> +#define V4L2_CID_COLORIMETRY_CLASS (V4L2_CTRL_CLASS_COLORIMETRY | 1)
> +
> /* MPEG-compression definitions kept for backwards compatibility */
> #ifndef __KERNEL__
> #define V4L2_CTRL_CLASS_MPEG V4L2_CTRL_CLASS_CODEC
>

Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

Regards,

Hans

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