Here we introduce a new Colorimetry control class and add Content light level and Mastering display colour volume v4l2 compound controls, relevant payload structures and validation.
Signed-off-by: Stanimir Varbanov <[email protected]> --- .../media/videodev2.h.rst.exceptions | 2 + drivers/media/v4l2-core/v4l2-ctrls.c | 68 +++++++++++++++++++ include/media/v4l2-ctrls.h | 4 ++ include/uapi/linux/v4l2-controls.h | 35 ++++++++++ include/uapi/linux/videodev2.h | 2 + 5 files changed, 111 insertions(+) diff --git a/Documentation/userspace-api/media/videodev2.h.rst.exceptions b/Documentation/userspace-api/media/videodev2.h.rst.exceptions index 0ed170c6e720..af4b8b87c5d7 100644 --- a/Documentation/userspace-api/media/videodev2.h.rst.exceptions +++ b/Documentation/userspace-api/media/videodev2.h.rst.exceptions @@ -147,6 +147,8 @@ replace symbol V4L2_CTRL_TYPE_HEVC_PPS :c:type:`v4l2_ctrl_type` replace symbol V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS :c:type:`v4l2_ctrl_type` replace symbol V4L2_CTRL_TYPE_AREA :c:type:`v4l2_ctrl_type` replace symbol V4L2_CTRL_TYPE_FWHT_PARAMS :c:type:`v4l2_ctrl_type` +replace symbol V4L2_CTRL_TYPE_HDR10_CLL_INFO :c:type:`v4l2_ctrl_hdr10_cll_info` +replace symbol V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY :c:type:`v4l2_ctrl_hdr10_mastering_display` # V4L2 capability defines replace define V4L2_CAP_VIDEO_CAPTURE device-capabilities diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c index 5cbe0ffbf501..7bd6c3098f30 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls.c +++ b/drivers/media/v4l2-core/v4l2-ctrls.c @@ -1015,6 +1015,9 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE: return "HEVC Decode Mode"; case V4L2_CID_MPEG_VIDEO_HEVC_START_CODE: return "HEVC Start Code"; + case V4L2_CID_COLORIMETRY_HDR10_CLL_INFO: return "HDR10 Content Light Info"; + case V4L2_CID_COLORIMETRY_HDR10_MASTERING_DISPLAY: return "HDR10 Mastering Display"; + /* CAMERA controls */ /* Keep the order of the 'case's the same as in v4l2-controls.h! */ case V4L2_CID_CAMERA_CLASS: return "Camera Controls"; @@ -1466,6 +1469,12 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, case V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS: *type = V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS; break; + case V4L2_CID_COLORIMETRY_HDR10_CLL_INFO: + *type = V4L2_CTRL_TYPE_HDR10_CLL_INFO; + break; + case V4L2_CID_COLORIMETRY_HDR10_MASTERING_DISPLAY: + *type = V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY; + break; case V4L2_CID_UNIT_CELL_SIZE: *type = V4L2_CTRL_TYPE_AREA; *flags |= V4L2_CTRL_FLAG_READ_ONLY; @@ -1765,6 +1774,12 @@ static void std_log(const struct v4l2_ctrl *ctrl) case V4L2_CTRL_TYPE_FWHT_PARAMS: pr_cont("FWHT_PARAMS"); break; + case V4L2_CTRL_TYPE_HDR10_CLL_INFO: + pr_cont("HDR10_CLL_INFO"); + break; + case V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY: + pr_cont("HDR10_MASTERING_DISPLAY"); + break; default: pr_cont("unknown type %d", ctrl->type); break; @@ -1817,6 +1832,7 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx, struct v4l2_ctrl_hevc_sps *p_hevc_sps; struct v4l2_ctrl_hevc_pps *p_hevc_pps; struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params; + struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering; struct v4l2_area *area; void *p = ptr.p + idx * ctrl->elem_size; unsigned int i; @@ -2112,6 +2128,52 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx, zero_padding(*p_hevc_slice_params); break; + case V4L2_CTRL_TYPE_HDR10_CLL_INFO: + break; + + case V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY: + p_hdr10_mastering = p; + + for (i = 0; i < 3; ++i) { + if (p_hdr10_mastering->display_primaries_x[i] < + V4L2_HDR10_MASTERING_PRIMARIES_X_LOW || + p_hdr10_mastering->display_primaries_x[i] > + V4L2_HDR10_MASTERING_PRIMARIES_X_HIGH || + p_hdr10_mastering->display_primaries_y[i] < + V4L2_HDR10_MASTERING_PRIMARIES_Y_LOW || + p_hdr10_mastering->display_primaries_y[i] > + V4L2_HDR10_MASTERING_PRIMARIES_Y_HIGH) + return -EINVAL; + } + + if (p_hdr10_mastering->white_point_x < + V4L2_HDR10_MASTERING_WHITE_POINT_X_LOW || + p_hdr10_mastering->white_point_x > + V4L2_HDR10_MASTERING_WHITE_POINT_X_HIGH || + p_hdr10_mastering->white_point_y < + V4L2_HDR10_MASTERING_WHITE_POINT_Y_LOW || + p_hdr10_mastering->white_point_y > + V4L2_HDR10_MASTERING_WHITE_POINT_Y_HIGH) + return -EINVAL; + + if (p_hdr10_mastering->max_display_mastering_luminance < + V4L2_HDR10_MASTERING_MAX_LUMA_LOW || + p_hdr10_mastering->max_display_mastering_luminance > + V4L2_HDR10_MASTERING_MAX_LUMA_HIGH || + p_hdr10_mastering->min_display_mastering_luminance < + V4L2_HDR10_MASTERING_MIN_LUMA_LOW || + p_hdr10_mastering->min_display_mastering_luminance > + V4L2_HDR10_MASTERING_MIN_LUMA_HIGH) + return -EINVAL; + + if (p_hdr10_mastering->max_display_mastering_luminance == + V4L2_HDR10_MASTERING_MAX_LUMA_LOW && + p_hdr10_mastering->min_display_mastering_luminance == + V4L2_HDR10_MASTERING_MIN_LUMA_HIGH) + return -EINVAL; + + break; + case V4L2_CTRL_TYPE_AREA: area = p; if (!area->width || !area->height) @@ -2804,6 +2866,12 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl, case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS: elem_size = sizeof(struct v4l2_ctrl_hevc_slice_params); break; + case V4L2_CTRL_TYPE_HDR10_CLL_INFO: + elem_size = sizeof(struct v4l2_ctrl_hdr10_cll_info); + break; + case V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY: + elem_size = sizeof(struct v4l2_ctrl_hdr10_mastering_display); + break; case V4L2_CTRL_TYPE_AREA: elem_size = sizeof(struct v4l2_area); break; diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index 167ca8c8424f..8308acc89b11 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -54,6 +54,8 @@ struct video_device; * @p_hevc_sps: Pointer to an HEVC sequence parameter set structure. * @p_hevc_pps: Pointer to an HEVC picture parameter set structure. * @p_hevc_slice_params: Pointer to an HEVC slice parameters structure. + * @p_hdr10_cll: Pointer to an HDR10 Content Light Level structure. + * @p_hdr10_mastering : Pointer to an HDR10 Mastering Display structure. * @p_area: Pointer to an area. * @p: Pointer to a compound value. * @p_const: Pointer to a constant compound value. @@ -78,6 +80,8 @@ union v4l2_ctrl_ptr { struct v4l2_ctrl_hevc_sps *p_hevc_sps; struct v4l2_ctrl_hevc_pps *p_hevc_pps; struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params; + struct v4l2_ctrl_hdr10_cll_info *p_hdr10_cll; + struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering; struct v4l2_area *p_area; void *p; const void *p_const; diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h index 823b214aac0c..8563f789cbe2 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 */ @@ -1635,6 +1636,40 @@ struct v4l2_ctrl_fwht_params { __u32 quantization; }; +#define V4L2_CID_COLORIMETRY_BASE (V4L2_CTRL_CLASS_COLORIMETRY | 0x900) +#define V4L2_CID_COLORIMETRY_CLASS (V4L2_CTRL_CLASS_COLORIMETRY | 1) + +#define V4L2_CID_COLORIMETRY_HDR10_CLL_INFO (V4L2_CID_COLORIMETRY_BASE + 0) + +struct v4l2_ctrl_hdr10_cll_info { + __u16 max_content_light_level; + __u16 max_pic_average_light_level; +}; + +#define V4L2_CID_COLORIMETRY_HDR10_MASTERING_DISPLAY (V4L2_CID_COLORIMETRY_BASE + 1) + +#define V4L2_HDR10_MASTERING_PRIMARIES_X_LOW 5 +#define V4L2_HDR10_MASTERING_PRIMARIES_X_HIGH 37000 +#define V4L2_HDR10_MASTERING_PRIMARIES_Y_LOW 5 +#define V4L2_HDR10_MASTERING_PRIMARIES_Y_HIGH 42000 +#define V4L2_HDR10_MASTERING_WHITE_POINT_X_LOW 5 +#define V4L2_HDR10_MASTERING_WHITE_POINT_X_HIGH 37000 +#define V4L2_HDR10_MASTERING_WHITE_POINT_Y_LOW 5 +#define V4L2_HDR10_MASTERING_WHITE_POINT_Y_HIGH 42000 +#define V4L2_HDR10_MASTERING_MAX_LUMA_LOW 50000 +#define V4L2_HDR10_MASTERING_MAX_LUMA_HIGH 100000000 +#define V4L2_HDR10_MASTERING_MIN_LUMA_LOW 1 +#define V4L2_HDR10_MASTERING_MIN_LUMA_HIGH 50000 + +struct v4l2_ctrl_hdr10_mastering_display { + __u16 display_primaries_x[3]; + __u16 display_primaries_y[3]; + __u16 white_point_x; + __u16 white_point_y; + __u32 max_display_mastering_luminance; + __u32 min_display_mastering_luminance; +}; + /* MPEG-compression definitions kept for backwards compatibility */ #ifndef __KERNEL__ #define V4L2_CTRL_CLASS_MPEG V4L2_CTRL_CLASS_CODEC diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 79dbde3bcf8d..1bde498e36a0 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -1792,6 +1792,8 @@ enum v4l2_ctrl_type { V4L2_CTRL_TYPE_H264_PRED_WEIGHTS = 0x0205, V4L2_CTRL_TYPE_FWHT_PARAMS = 0x0220, + V4L2_CTRL_TYPE_HDR10_CLL_INFO = 0x0221, + V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY = 0x0222, }; /* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */ -- 2.17.1
