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media: v4l: Add HDR10 static metadata controls

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Introduce Content light level and Mastering display colour
volume Colorimetry compound controls with relevant payload
structures and validation.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Stanimir Varbanov 2021-01-19 16:06:42 +01:00 • committed by Mauro Carvalho Chehab
parent 4e4053a28f
commit 1ad0de78e7
4 changed files with 106 additions and 0 deletions
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68
drivers/media/v4l2-core/v4l2-ctrls.c
View file

@ -1219,6 +1219,8 @@ const char *v4l2_ctrl_get_name(u32 id)
/* Colorimetry controls */ /* Colorimetry controls */
/* Keep the order of the 'case's the same as in v4l2-controls.h! */ /* Keep the order of the 'case's the same as in v4l2-controls.h! */
case V4L2_CID_COLORIMETRY_CLASS: return "Colorimetry Controls"; case V4L2_CID_COLORIMETRY_CLASS: return "Colorimetry Controls";
case V4L2_CID_COLORIMETRY_HDR10_CLL_INFO: return "HDR10 Content Light Info";
case V4L2_CID_COLORIMETRY_HDR10_MASTERING_DISPLAY: return "HDR10 Mastering Display";
default: default:
return NULL; return NULL;
} }
@ -1528,6 +1530,12 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
*type = V4L2_CTRL_TYPE_AREA; *type = V4L2_CTRL_TYPE_AREA;
*flags |= V4L2_CTRL_FLAG_READ_ONLY; *flags |= V4L2_CTRL_FLAG_READ_ONLY;
break; 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;
default: default:
*type = V4L2_CTRL_TYPE_INTEGER; *type = V4L2_CTRL_TYPE_INTEGER;
break; break;
@ -1828,6 +1836,12 @@ static void std_log(const struct v4l2_ctrl *ctrl)
case V4L2_CTRL_TYPE_VP8_FRAME: case V4L2_CTRL_TYPE_VP8_FRAME:
pr_cont("VP8_FRAME"); pr_cont("VP8_FRAME");
break; 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: default:
pr_cont("unknown type %d", ctrl->type); pr_cont("unknown type %d", ctrl->type);
break; break;
@ -1880,6 +1894,7 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx,
struct v4l2_ctrl_hevc_sps *p_hevc_sps; struct v4l2_ctrl_hevc_sps *p_hevc_sps;
struct v4l2_ctrl_hevc_pps *p_hevc_pps; struct v4l2_ctrl_hevc_pps *p_hevc_pps;
struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params; struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params;
struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering;
struct v4l2_area *area; struct v4l2_area *area;
void *p = ptr.p + idx * ctrl->elem_size; void *p = ptr.p + idx * ctrl->elem_size;
unsigned int i; unsigned int i;
@ -2175,6 +2190,53 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx,
zero_padding(*p_hevc_slice_params); zero_padding(*p_hevc_slice_params);
break; 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;
/* The following restriction comes from ITU-T Rec. H.265 spec */
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: case V4L2_CTRL_TYPE_AREA:
area = p; area = p;
if (!area->width || !area->height) if (!area->width || !area->height)
@ -2868,6 +2930,12 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS: case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS:
elem_size = sizeof(struct v4l2_ctrl_hevc_slice_params); elem_size = sizeof(struct v4l2_ctrl_hevc_slice_params);
break; 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: case V4L2_CTRL_TYPE_AREA:
elem_size = sizeof(struct v4l2_area); elem_size = sizeof(struct v4l2_area);
break; break;

4
include/media/v4l2-ctrls.h
View file

@ -53,6 +53,8 @@ struct video_device;
* @p_hevc_sps: Pointer to an HEVC sequence parameter set structure. * @p_hevc_sps: Pointer to an HEVC sequence parameter set structure.
* @p_hevc_pps: Pointer to an HEVC picture 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_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_area: Pointer to an area.
* @p: Pointer to a compound value. * @p: Pointer to a compound value.
* @p_const: Pointer to a constant compound value. * @p_const: Pointer to a constant compound value.
@ -77,6 +79,8 @@ union v4l2_ctrl_ptr {
struct v4l2_ctrl_hevc_sps *p_hevc_sps; struct v4l2_ctrl_hevc_sps *p_hevc_sps;
struct v4l2_ctrl_hevc_pps *p_hevc_pps; struct v4l2_ctrl_hevc_pps *p_hevc_pps;
struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params; 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; struct v4l2_area *p_area;
void *p; void *p;
const void *p_const; const void *p_const;

31
include/uapi/linux/v4l2-controls.h
View file

@ -1865,6 +1865,37 @@ struct v4l2_ctrl_vp8_frame {
#define V4L2_CID_COLORIMETRY_CLASS_BASE (V4L2_CTRL_CLASS_COLORIMETRY | 0x900) #define V4L2_CID_COLORIMETRY_CLASS_BASE (V4L2_CTRL_CLASS_COLORIMETRY | 0x900)
#define V4L2_CID_COLORIMETRY_CLASS (V4L2_CTRL_CLASS_COLORIMETRY | 1) #define V4L2_CID_COLORIMETRY_CLASS (V4L2_CTRL_CLASS_COLORIMETRY | 1)
#define V4L2_CID_COLORIMETRY_HDR10_CLL_INFO (V4L2_CID_COLORIMETRY_CLASS_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_CLASS_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 */ /* MPEG-compression definitions kept for backwards compatibility */
#ifndef __KERNEL__ #ifndef __KERNEL__
#define V4L2_CTRL_CLASS_MPEG V4L2_CTRL_CLASS_CODEC #define V4L2_CTRL_CLASS_MPEG V4L2_CTRL_CLASS_CODEC

3
include/uapi/linux/videodev2.h
View file

@ -1794,6 +1794,9 @@ enum v4l2_ctrl_type {
V4L2_CTRL_TYPE_U32 = 0x0102, V4L2_CTRL_TYPE_U32 = 0x0102,
V4L2_CTRL_TYPE_AREA = 0x0106, V4L2_CTRL_TYPE_AREA = 0x0106,
V4L2_CTRL_TYPE_HDR10_CLL_INFO = 0x0110,
V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY = 0x0111,
V4L2_CTRL_TYPE_H264_SPS = 0x0200, V4L2_CTRL_TYPE_H264_SPS = 0x0200,
V4L2_CTRL_TYPE_H264_PPS = 0x0201, V4L2_CTRL_TYPE_H264_PPS = 0x0201,
V4L2_CTRL_TYPE_H264_SCALING_MATRIX = 0x0202, V4L2_CTRL_TYPE_H264_SCALING_MATRIX = 0x0202,