Re: [PATCH v1 17/19] uvcvideo: Add UVC 1.5 Encoding Unit controls.

Laurent Pinchart
2013-11-11T02:33:23Z

Hi Pawel,

Thank you for the patch.

On Friday 30 August 2013 11:17:16 Pawel Osciak wrote:
> These controls allow modifying encoding parameters.
>
> Signed-off-by: Pawel Osciak <posciak@chromium.org>
> ---
> drivers/media/usb/uvc/uvc_ctrl.c | 445 ++++++++++++++++++++++++++++++++++++
> include/uapi/linux/usb/video.h | 23 ++
> 2 files changed, 468 insertions(+)
>
> diff --git a/drivers/media/usb/uvc/uvc_ctrl.c
> b/drivers/media/usb/uvc/uvc_ctrl.c index a0493d6..cd02c99 100644
> --- a/drivers/media/usb/uvc/uvc_ctrl.c
> +++ b/drivers/media/usb/uvc/uvc_ctrl.c
> @@ -351,6 +351,167 @@ static struct uvc_control_info uvc_ctrls[] = {
>
> | UVC_CTRL_FLAG_RESTORE
> | UVC_CTRL_FLAG_AUTO_UPDATE,
>
> },
> + /*
> + * All EU controls are marked as AUTO_UPDATE, because many are, and also
> + * we can't cache all of them as they are stream/layer dependent, which
> + * would be too slow/too much to cache.
> + */
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_PROFILE_TOOLSET_CONTROL,
> + .index = 1,
> + .size = 6,

Doesn't UVC 1.5 document this control size as 5 bytes ?

> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_DEF
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_MIN_FRAME_INTERVAL_CONTROL,
> + .index = 3,
> + .size = 4,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_MIN | UVC_CTRL_FLAG_GET_MAX
> + | UVC_CTRL_FLAG_GET_DEF
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_SLICE_MODE_CONTROL,
> + .index = 4,
> + .size = 4,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_MIN | UVC_CTRL_FLAG_GET_MAX
> + | UVC_CTRL_FLAG_GET_DEF
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_RATE_CONTROL_MODE_CONTROL,
> + .index = 5,
> + .size = 1,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_DEF
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_AVERAGE_BITRATE_CONTROL,
> + .index = 6,
> + .size = 4,
> + .flags = UVC_CTRL_FLAG_SET_CUR
> + | UVC_CTRL_FLAG_GET_RANGE
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_CPB_SIZE_CONTROL,
> + .index = 7,
> + .size = 4,
> + .flags = UVC_CTRL_FLAG_SET_CUR
> + | UVC_CTRL_FLAG_GET_RANGE
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_PEAK_BIT_RATE_CONTROL,
> + .index = 8,
> + .size = 4,
> + .flags = UVC_CTRL_FLAG_SET_CUR
> + | UVC_CTRL_FLAG_GET_RANGE
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_QUANTIZATION_PARAMS_CONTROL,
> + .index = 9,
> + .size = 6,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_MIN | UVC_CTRL_FLAG_GET_MAX
> + | UVC_CTRL_FLAG_GET_DEF
> + | UVC_CTRL_FLAG_AUTO_UPDATE,

According to the spec this one supports GET_RES as well, so you can use
GET_RANGE.

> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_SYNC_REF_FRAME_CONTROL,
> + .index = 10,
> + .size = 4,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_MIN | UVC_CTRL_FLAG_GET_MAX
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_LTR_BUFFER_CONTROL,
> + .index = 11,
> + .size = 2,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_MAX | UVC_CTRL_FLAG_GET_DEF
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_LTR_PICTURE_CONTROL,
> + .index = 12,
> + .size = 2,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_DEF
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_LTR_VALIDATION_CONTROL,
> + .index = 13,
> + .size = 2,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_DEF
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_LEVEL_IDC_LIMIT_CONTROL,
> + .index = 14,
> + .size = 1,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_MIN | UVC_CTRL_FLAG_GET_MAX
> + | UVC_CTRL_FLAG_GET_DEF
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_SEI_PAYLOADTYPE_CONTROL,
> + .index = 15,
> + .size = 8,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_MAX | UVC_CTRL_FLAG_GET_DEF
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_QP_RANGE_CONTROL,
> + .index = 16,
> + .size = 2,
> + .flags = UVC_CTRL_FLAG_SET_CUR
> + | UVC_CTRL_FLAG_GET_RANGE
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_PRIORITY_CONTROL,
> + .index = 17,
> + .size = 1,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_AUTO_UPDATE,
> + },
> + {
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_ERROR_RESILIENCY_CONTROL,
> + .index = 19,
> + .size = 2,
> + .flags = UVC_CTRL_FLAG_SET_CUR | UVC_CTRL_FLAG_GET_CUR
> + | UVC_CTRL_FLAG_GET_DEF | UVC_CTRL_FLAG_GET_RES
> + | UVC_CTRL_FLAG_AUTO_UPDATE,

The spec doesn't mention GET_LEN and GET_INFO as supported requests for this
control. Please please please tell me it's a mistake in the documentation...

> + },
> };
>
> static struct uvc_menu_info power_line_frequency_controls[] = {
> @@ -366,6 +527,32 @@ static struct uvc_menu_info exposure_auto_controls[] =
> { { 8, "Aperture Priority Mode" },
> };
>
> +static struct uvc_menu_info rate_control_mode_controls[] = {
> + { 1, "VBR" },
> + { 2, "CBR" },
> + { 3, "Constant QP" },
> + { 4, "GVBR" },
> + { 5, "VBRN" },
> + { 6, "GVBRN" },
> +};
> +
> +static struct uvc_menu_info encoder_vp8_sync_frame_type_controls[] = {
> + { 0, "Reset" },
> + { 1, "Generate Intra Frame" },
> + { 2, "GDR" },
> + { 3, "GDR and Update Golden" },
> + { 4, "GDR and Update Alt" },
> + { 5, "GDR and Update Golden + Alt" },
> + { 6, "Update Golden" },
> + { 7, "Update Alt" },
> + { 8, "Update Golden + Alt" },
> +};
> +
> +static struct uvc_menu_info encoder_vp8_slice_mode_controls[] = {
> + { 0, "No Partitioning" },
> + { 1, "DCT Partitions Per Frame" },
> +};
> +
> static __s32 uvc_ctrl_get_zoom(struct uvc_control_mapping *mapping,
> __u8 query, const __u8 *data)
> {
> @@ -686,6 +873,264 @@ static struct uvc_control_mapping uvc_ctrl_mappings[]
> = { .v4l2_type = V4L2_CTRL_TYPE_BOOLEAN,
> .data_type = UVC_CTRL_DATA_TYPE_BOOLEAN,
> },
> + /* Encoder controls. */
> + {
> + .id = V4L2_CID_ENCODER_H264_PROFILE_TOOLSET,
> + .name = "Encoder, H.264 profile/toolset",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_PROFILE_TOOLSET_CONTROL,
> + .size = 40,

The get_le and set_le helpers only support up to 32 bits :-/

> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,

This UVC control is split in 3 fields. I don't think it would be a good idea
to expose that as a single V4L2 control. We should either have 3 V4L2 controls
(or actually 2, as wConstrainedToolset is reserved), or only expose this
through the XU API.

> + },
> + {
> + .id = V4L2_CID_ENCODER_MIN_FRAME_INTERVAL,
> + .name = "Encoder, minimum frame interval",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_MIN_FRAME_INTERVAL_CONTROL,
> + .size = 32,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_VP8_SLICE_MODE,
> + .name = "Encoder, VP8 slice mode",

How nice of them, redefining the meaning of the control for VP8... :-)

> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_SLICE_MODE_CONTROL,
> + .size = 16,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_MENU,
> + .data_type = UVC_CTRL_DATA_TYPE_ENUM,
> + .menu_info = encoder_vp8_slice_mode_controls,
> + .menu_count = ARRAY_SIZE(encoder_vp8_slice_mode_controls),
> + },
> + {
> + .id = V4L2_CID_ENCODER_VP8_DCT_PARTS_PER_FRAME,
> + .name = "Encoder, VP8 DCT partns/frame",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_SLICE_MODE_CONTROL,
> + .size = 16,
> + .offset = 16,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_RATE_CONTROL_MODE,
> + .name = "Encoder, rate control mode",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_RATE_CONTROL_MODE_CONTROL,
> + .size = 4,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_MENU,
> + .data_type = UVC_CTRL_DATA_TYPE_ENUM,
> + .menu_info = rate_control_mode_controls,
> + .menu_count = ARRAY_SIZE(rate_control_mode_controls),
> + },
> + {
> + .id = V4L2_CID_ENCODER_AVERAGE_BITRATE,
> + .name = "Encoder, average bitrate",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_AVERAGE_BITRATE_CONTROL,
> + .size = 32,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_CPB_SIZE,
> + .name = "Encoder, CPB size",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_CPB_SIZE_CONTROL,
> + .size = 32,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_PEAK_BIT_RATE,
> + .name = "Encoder, peak bit rate",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_PEAK_BIT_RATE_CONTROL,
> + .size = 32,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_QP_PARAM_I,
> + .name = "Encoder, QP param, I frames",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_QUANTIZATION_PARAMS_CONTROL,
> + .size = 16,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_QP_PARAM_P,
> + .name = "Encoder, QP param, P frames",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_QUANTIZATION_PARAMS_CONTROL,
> + .size = 16,
> + .offset = 16,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_QP_PARAM_BG,
> + .name = "Encoder, QP param, B/G frames",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_QUANTIZATION_PARAMS_CONTROL,
> + .size = 16,
> + .offset = 32,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_VP8_SYNC_FRAME_TYPE,
> + .name = "Encoder, VP8 sync frame type",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_SYNC_REF_FRAME_CONTROL,
> + .size = 8,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_MENU,
> + .data_type = UVC_CTRL_DATA_TYPE_ENUM,
> + .menu_info = encoder_vp8_sync_frame_type_controls,
> + .menu_count =
> + ARRAY_SIZE(encoder_vp8_sync_frame_type_controls),
> + },
> + {
> + .id = V4L2_CID_ENCODER_SYNC_FRAME_INTERVAL,
> + .name = "Encoder, sync frame interval",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_SYNC_REF_FRAME_CONTROL,
> + .size = 16,
> + .offset = 8,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_NUM_GDR_FRAMES,
> + .name = "Encoder, number of GDR frames",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_SYNC_REF_FRAME_CONTROL,
> + .size = 8,
> + .offset = 24,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_LTR_BUFFER_CONTROL,
> + .name = "Encoder, LTR buffer control",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_LTR_BUFFER_CONTROL,
> + .size = 8,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_LTR_BUFFER_TRUST_MODE,
> + .name = "Encoder, LTR buffer trust mode",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_LTR_BUFFER_CONTROL,
> + .size = 8,
> + .offset = 8,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_LTR_PICTURE_POSITION,
> + .name = "Encoder, LTR picture position",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_LTR_PICTURE_CONTROL,
> + .size = 8,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_LTR_PICTURE_MODE,
> + .name = "Encoder, LTR picture mode",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_LTR_PICTURE_CONTROL,
> + .size = 8,
> + .offset = 8,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_LTR_VALIDATION,
> + .name = "Encoder, LTR validation",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_LTR_VALIDATION_CONTROL,
> + .size = 16,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_BITMASK,
> + .data_type = UVC_CTRL_DATA_TYPE_BITMASK,
> + },
> + {
> + .id = V4L2_CID_ENCODER_H264_LEVEL_IDC_LIMIT,
> + .name = "Encoder, H.264 level IDC limit",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_LEVEL_IDC_LIMIT_CONTROL,
> + .size = 8,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_H264_SEI_PAYLOAD_TYPE,
> + .name = "Encoder, H.264 SEI payload type",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_SEI_PAYLOADTYPE_CONTROL,
> + .size = 64,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_BITMASK,
> + .data_type = UVC_CTRL_DATA_TYPE_BITMASK,
> + },
> + {
> + .id = V4L2_CID_ENCODER_MIN_QP,
> + .name = "Encoder, minimum QP param",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_QP_RANGE_CONTROL,
> + .size = 8,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_SIGNED,

Are the QP values signed ?

> + },
> + {
> + .id = V4L2_CID_ENCODER_MAX_QP,
> + .name = "Encoder, maximum QP param",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_QP_RANGE_CONTROL,
> + .size = 8,
> + .offset = 8,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_SIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_H264_LAYER_PRIORITY,
> + .name = "Encoder, H.264 layer priority",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_PRIORITY_CONTROL,
> + .size = 8,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_INTEGER,
> + .data_type = UVC_CTRL_DATA_TYPE_UNSIGNED,
> + },
> + {
> + .id = V4L2_CID_ENCODER_ERROR_RESILIENCY,
> + .name = "Encoder, error resiliency",
> + .entity = UVC_GUID_UVC_ENCODING,
> + .selector = UVC_EU_ERROR_RESILIENCY_CONTROL,
> + .size = 16,
> + .offset = 0,
> + .v4l2_type = V4L2_CTRL_TYPE_BITMASK,
> + .data_type = UVC_CTRL_DATA_TYPE_BITMASK,
> + },
> };
>
> /* ------------------------------------------------------------------------
> diff --git a/include/uapi/linux/usb/video.h
> b/include/uapi/linux/usb/video.h index e09c50b..fd1d4b0 100644
> --- a/include/uapi/linux/usb/video.h
> +++ b/include/uapi/linux/usb/video.h
> @@ -127,6 +127,29 @@
> #define UVC_PU_ANALOG_VIDEO_STANDARD_CONTROL 0x11
> #define UVC_PU_ANALOG_LOCK_STATUS_CONTROL 0x12
>
> +/* Encoding Unit Control Selectors */
> +#define UVC_EU_CONTROL_UNDEFINED 0x00
> +#define UVC_EU_SELECT_LAYER_CONTROL 0x01
> +#define UVC_EU_PROFILE_TOOLSET_CONTROL 0x02
> +#define UVC_EU_VIDEO_RESOLUTION_CONTROL 0x03
> +#define UVC_EU_MIN_FRAME_INTERVAL_CONTROL 0x04
> +#define UVC_EU_SLICE_MODE_CONTROL 0x05
> +#define UVC_EU_RATE_CONTROL_MODE_CONTROL 0x06
> +#define UVC_EU_AVERAGE_BITRATE_CONTROL 0x07
> +#define UVC_EU_CPB_SIZE_CONTROL 0x08
> +#define UVC_EU_PEAK_BIT_RATE_CONTROL 0x09
> +#define UVC_EU_QUANTIZATION_PARAMS_CONTROL 0x0a
> +#define UVC_EU_SYNC_REF_FRAME_CONTROL 0x0b
> +#define UVC_EU_LTR_BUFFER_CONTROL 0x0c
> +#define UVC_EU_LTR_PICTURE_CONTROL 0x0d
> +#define UVC_EU_LTR_VALIDATION_CONTROL 0x0e
> +#define UVC_EU_LEVEL_IDC_LIMIT_CONTROL 0x0f
> +#define UVC_EU_SEI_PAYLOADTYPE_CONTROL 0x10
> +#define UVC_EU_QP_RANGE_CONTROL 0x11
> +#define UVC_EU_PRIORITY_CONTROL 0x12
> +#define UVC_EU_START_OR_STOP_LAYER_CONTROL 0x13
> +#define UVC_EU_ERROR_RESILIENCY_CONTROL 0x14
> +
> /* A.9.7. VideoStreaming Interface Control Selectors */
> #define UVC_VS_CONTROL_UNDEFINED 0x00
> #define UVC_VS_PROBE_CONTROL 0x01
--
Regards,

Laurent Pinchart