Commit b88dbe38 authored by Andrzej Pietrasiewicz's avatar Andrzej Pietrasiewicz Committed by Mauro Carvalho Chehab
Browse files

media: uapi: Add VP9 stateless decoder controls 



Add the VP9 stateless decoder controls plus the documentation that goes
with it.

Signed-off-by: default avatarBoris Brezillon <boris.brezillon@collabora.com>
Co-developed-by: default avatarEzequiel Garcia <ezequiel@collabora.com>
Signed-off-by: default avatarEzequiel Garcia <ezequiel@collabora.com>
Signed-off-by: default avatarAdrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: default avatarAndrzej Pietrasiewicz <andrzej.p@collabora.com>
Co-developed-by: default avatarDaniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: default avatarDaniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent bb91e46e

Documentation/userspace-api/media/v4l/biblio.rst

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@@ -417,3 +417,13 @@ VP8 
:title:     RFC 6386: "VP8 Data Format and Decoding Guide"



:author:    J. Bankoski et al.



.. _vp9:



VP9

===





:title:     VP9 Bitstream & Decoding Process Specification



:author:    Adrian Grange (Google), Peter de Rivaz (Argon Design), Jonathan Hunt (Argon Design)

Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst

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@@ -1458,3 +1458,576 @@ FWHT Flags 
.. raw:: latex



    \normalsize



.. _v4l2-codec-stateless-vp9:



``V4L2_CID_STATELESS_VP9_COMPRESSED_HDR (struct)``

    Stores VP9 probabilities updates as parsed from the current compressed frame

    header. A value of zero in an array element means no update of the relevant

    probability. Motion vector-related updates contain a new value or zero. All

    other updates contain values translated with inv_map_table[] (see 6.3.5 in

    :ref:`vp9`).



.. c:type:: v4l2_ctrl_vp9_compressed_hdr



.. tabularcolumns:: |p{1cm}|p{4.8cm}|p{11.4cm}|



.. cssclass:: longtable



.. flat-table:: struct v4l2_ctrl_vp9_compressed_hdr

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - __u8

      - ``tx_mode``

      - Specifies the TX mode. See :ref:`TX Mode <vp9_tx_mode>` for more details.

    * - __u8

      - ``tx8[2][1]``

      - TX 8x8 probabilities delta.

    * - __u8

      - ``tx16[2][2]``

      - TX 16x16 probabilities delta.

    * - __u8

      - ``tx32[2][3]``

      - TX 32x32 probabilities delta.

    * - __u8

      - ``coef[4][2][2][6][6][3]``

      - Coefficient probabilities delta.

    * - __u8

      - ``skip[3]``

      - Skip probabilities delta.

    * - __u8

      - ``inter_mode[7][3]``

      - Inter prediction mode probabilities delta.

    * - __u8

      - ``interp_filter[4][2]``

      - Interpolation filter probabilities delta.

    * - __u8

      - ``is_inter[4]``

      - Is inter-block probabilities delta.

    * - __u8

      - ``comp_mode[5]``

      - Compound prediction mode probabilities delta.

    * - __u8

      - ``single_ref[5][2]``

      - Single reference probabilities delta.

    * - __u8

      - ``comp_ref[5]``

      - Compound reference probabilities delta.

    * - __u8

      - ``y_mode[4][9]``

      - Y prediction mode probabilities delta.

    * - __u8

      - ``uv_mode[10][9]``

      - UV prediction mode probabilities delta.

    * - __u8

      - ``partition[16][3]``

      - Partition probabilities delta.

    * - __u8

      - ``mv.joint[3]``

      - Motion vector joint probabilities delta.

    * - __u8

      - ``mv.sign[2]``

      - Motion vector sign probabilities delta.

    * - __u8

      - ``mv.classes[2][10]``

      - Motion vector class probabilities delta.

    * - __u8

      - ``mv.class0_bit[2]``

      - Motion vector class0 bit probabilities delta.

    * - __u8

      - ``mv.bits[2][10]``

      - Motion vector bits probabilities delta.

    * - __u8

      - ``mv.class0_fr[2][2][3]``

      - Motion vector class0 fractional bit probabilities delta.

    * - __u8

      - ``mv.fr[2][3]``

      - Motion vector fractional bit probabilities delta.

    * - __u8

      - ``mv.class0_hp[2]``

      - Motion vector class0 high precision fractional bit probabilities delta.

    * - __u8

      - ``mv.hp[2]``

      - Motion vector high precision fractional bit probabilities delta.



.. _vp9_tx_mode:



``TX Mode``



.. tabularcolumns:: |p{6.5cm}|p{0.5cm}|p{10.3cm}|



.. flat-table::

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - ``V4L2_VP9_TX_MODE_ONLY_4X4``

      - 0

      - Transform size is 4x4.

    * - ``V4L2_VP9_TX_MODE_ALLOW_8X8``

      - 1

      - Transform size can be up to 8x8.

    * - ``V4L2_VP9_TX_MODE_ALLOW_16X16``

      - 2

      - Transform size can be up to 16x16.

    * - ``V4L2_VP9_TX_MODE_ALLOW_32X32``

      - 3

      - transform size can be up to 32x32.

    * - ``V4L2_VP9_TX_MODE_SELECT``

      - 4

      - Bitstream contains the transform size for each block.



See section '7.3.1 Tx mode semantics' of the :ref:`vp9` specification for more details.



``V4L2_CID_STATELESS_VP9_FRAME (struct)``

    Specifies the frame parameters for the associated VP9 frame decode request.

    This includes the necessary parameters for configuring a stateless hardware

    decoding pipeline for VP9. The bitstream parameters are defined according

    to :ref:`vp9`.



.. c:type:: v4l2_ctrl_vp9_frame



.. raw:: latex



    \small



.. tabularcolumns:: |p{4.7cm}|p{5.5cm}|p{7.1cm}|



.. cssclass:: longtable



.. flat-table:: struct v4l2_ctrl_vp9_frame

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - struct :c:type:`v4l2_vp9_loop_filter`

      - ``lf``

      - Loop filter parameters. See struct :c:type:`v4l2_vp9_loop_filter` for more details.

    * - struct :c:type:`v4l2_vp9_quantization`

      - ``quant``

      - Quantization parameters. See :c:type:`v4l2_vp9_quantization` for more details.

    * - struct :c:type:`v4l2_vp9_segmentation`

      - ``seg``

      - Segmentation parameters. See :c:type:`v4l2_vp9_segmentation` for more details.

    * - __u32

      - ``flags``

      - Combination of V4L2_VP9_FRAME_FLAG_* flags. See :ref:`Frame Flags<vp9_frame_flags>`.

    * - __u16

      - ``compressed_header_size``

      - Compressed header size in bytes.

    * - __u16

      - ``uncompressed_header_size``

      - Uncompressed header size in bytes.

    * - __u16

      - ``frame_width_minus_1``

      - Add 1 to get the frame width expressed in pixels. See section 7.2.3 in :ref:`vp9`.

    * - __u16

      - ``frame_height_minus_1``

      - Add 1 to get the frame height expressed in pixels. See section 7.2.3 in :ref:`vp9`.

    * - __u16

      - ``render_width_minus_1``

      - Add 1 to get the expected render width expressed in pixels. This is

        not used during the decoding process but might be used by HW scalers to

        prepare a frame that's ready for scanout. See section 7.2.4 in :ref:`vp9`.

    * - __u16

      - render_height_minus_1

      - Add 1 to get the expected render height expressed in pixels. This is

        not used during the decoding process but might be used by HW scalers to

        prepare a frame that's ready for scanout. See section 7.2.4 in :ref:`vp9`.

    * - __u64

      - ``last_frame_ts``

      - "last" reference buffer timestamp.

	The timestamp refers to the ``timestamp`` field in

        struct :c:type:`v4l2_buffer`. Use the :c:func:`v4l2_timeval_to_ns()`

        function to convert the struct :c:type:`timeval` in struct

        :c:type:`v4l2_buffer` to a __u64.

    * - __u64

      - ``golden_frame_ts``

      - "golden" reference buffer timestamp.

	The timestamp refers to the ``timestamp`` field in

        struct :c:type:`v4l2_buffer`. Use the :c:func:`v4l2_timeval_to_ns()`

        function to convert the struct :c:type:`timeval` in struct

        :c:type:`v4l2_buffer` to a __u64.

    * - __u64

      - ``alt_frame_ts``

      - "alt" reference buffer timestamp.

	The timestamp refers to the ``timestamp`` field in

        struct :c:type:`v4l2_buffer`. Use the :c:func:`v4l2_timeval_to_ns()`

        function to convert the struct :c:type:`timeval` in struct

        :c:type:`v4l2_buffer` to a __u64.

    * - __u8

      - ``ref_frame_sign_bias``

      - a bitfield specifying whether the sign bias is set for a given

        reference frame. See :ref:`Reference Frame Sign Bias<vp9_ref_frame_sign_bias>`

        for more details.

    * - __u8

      - ``reset_frame_context``

      - specifies whether the frame context should be reset to default values. See

        :ref:`Reset Frame Context<vp9_reset_frame_context>` for more details.

    * - __u8

      - ``frame_context_idx``

      - Frame context that should be used/updated.

    * - __u8

      - ``profile``

      - VP9 profile. Can be 0, 1, 2 or 3.

    * - __u8

      - ``bit_depth``

      - Component depth in bits. Can be 8, 10 or 12. Note that not all profiles

        support 10 and/or 12 bits depths.

    * - __u8

      - ``interpolation_filter``

      - Specifies the filter selection used for performing inter prediction. See

        :ref:`Interpolation Filter<vp9_interpolation_filter>` for more details.

    * - __u8

      - ``tile_cols_log2``

      - Specifies the base 2 logarithm of the width of each tile (where the

        width is measured in units of 8x8 blocks). Shall be less than or equal

        to 6.

    * - __u8

      - ``tile_rows_log2``

      - Specifies the base 2 logarithm of the height of each tile (where the

        height is measured in units of 8x8 blocks).

    * - __u8

      - ``reference_mode``

      - Specifies the type of inter prediction to be used. See

        :ref:`Reference Mode<vp9_reference_mode>` for more details.

    * - __u8

      - ``reserved[7]``

      - Applications and drivers must set this to zero.



.. raw:: latex



    \normalsize



.. _vp9_frame_flags:



``Frame Flags``



.. tabularcolumns:: |p{10.0cm}|p{1.2cm}|p{6.1cm}|



.. flat-table::

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - ``V4L2_VP9_FRAME_FLAG_KEY_FRAME``

      - 0x001

      - The frame is a key frame.

    * - ``V4L2_VP9_FRAME_FLAG_SHOW_FRAME``

      - 0x002

      - The frame should be displayed.

    * - ``V4L2_VP9_FRAME_FLAG_ERROR_RESILIENT``

      - 0x004

      - The decoding should be error resilient.

    * - ``V4L2_VP9_FRAME_FLAG_INTRA_ONLY``

      - 0x008

      - The frame does not reference other frames.

    * - ``V4L2_VP9_FRAME_FLAG_ALLOW_HIGH_PREC_MV``

      - 0x010

      - The frame can use high precision motion vectors.

    * - ``V4L2_VP9_FRAME_FLAG_REFRESH_FRAME_CTX``

      - 0x020

      - Frame context should be updated after decoding.

    * - ``V4L2_VP9_FRAME_FLAG_PARALLEL_DEC_MODE``

      - 0x040

      - Parallel decoding is used.

    * - ``V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING``

      - 0x080

      - Vertical subsampling is enabled.

    * - ``V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING``

      - 0x100

      - Horizontal subsampling is enabled.

    * - ``V4L2_VP9_FRAME_FLAG_COLOR_RANGE_FULL_SWING``

      - 0x200

      - The full UV range is used.



.. _vp9_ref_frame_sign_bias:



``Reference Frame Sign Bias``



.. tabularcolumns:: |p{7.0cm}|p{1.2cm}|p{9.1cm}|



.. flat-table::

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - ``V4L2_VP9_SIGN_BIAS_LAST``

      - 0x1

      - Sign bias is set for the last reference frame.

    * - ``V4L2_VP9_SIGN_BIAS_GOLDEN``

      - 0x2

      - Sign bias is set for the golden reference frame.

    * - ``V4L2_VP9_SIGN_BIAS_ALT``

      - 0x2

      - Sign bias is set for the alt reference frame.



.. _vp9_reset_frame_context:



``Reset Frame Context``



.. tabularcolumns:: |p{7.0cm}|p{1.2cm}|p{9.1cm}|



.. flat-table::

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - ``V4L2_VP9_RESET_FRAME_CTX_NONE``

      - 0

      - Do not reset any frame context.

    * - ``V4L2_VP9_RESET_FRAME_CTX_SPEC``

      - 1

      - Reset the frame context pointed to by

        :c:type:`v4l2_ctrl_vp9_frame`.frame_context_idx.

    * - ``V4L2_VP9_RESET_FRAME_CTX_ALL``

      - 2

      - Reset all frame contexts.



See section '7.2 Uncompressed header semantics' of the :ref:`vp9` specification

for more details.



.. _vp9_interpolation_filter:



``Interpolation Filter``



.. tabularcolumns:: |p{9.0cm}|p{1.2cm}|p{7.1cm}|



.. flat-table::

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - ``V4L2_VP9_INTERP_FILTER_EIGHTTAP``

      - 0

      - Eight tap filter.

    * - ``V4L2_VP9_INTERP_FILTER_EIGHTTAP_SMOOTH``

      - 1

      - Eight tap smooth filter.

    * - ``V4L2_VP9_INTERP_FILTER_EIGHTTAP_SHARP``

      - 2

      - Eeight tap sharp filter.

    * - ``V4L2_VP9_INTERP_FILTER_BILINEAR``

      - 3

      - Bilinear filter.

    * - ``V4L2_VP9_INTERP_FILTER_SWITCHABLE``

      - 4

      - Filter selection is signaled at the block level.



See section '7.2.7 Interpolation filter semantics' of the :ref:`vp9` specification

for more details.



.. _vp9_reference_mode:



``Reference Mode``



.. tabularcolumns:: |p{9.6cm}|p{0.5cm}|p{7.2cm}|



.. flat-table::

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - ``V4L2_VP9_REFERENCE_MODE_SINGLE_REFERENCE``

      - 0

      - Indicates that all the inter blocks use only a single reference frame

        to generate motion compensated prediction.

    * - ``V4L2_VP9_REFERENCE_MODE_COMPOUND_REFERENCE``

      - 1

      - Requires all the inter blocks to use compound mode. Single reference

        frame prediction is not allowed.

    * - ``V4L2_VP9_REFERENCE_MODE_SELECT``

      - 2

      - Allows each individual inter block to select between single and

        compound prediction modes.



See section '7.3.6 Frame reference mode semantics' of the :ref:`vp9` specification for more details.



.. c:type:: v4l2_vp9_segmentation



Encodes the quantization parameters. See section '7.2.10 Segmentation

params syntax' of the :ref:`vp9` specification for more details.



.. tabularcolumns:: |p{0.8cm}|p{5cm}|p{11.4cm}|



.. cssclass:: longtable



.. flat-table:: struct v4l2_vp9_segmentation

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - __u8

      - ``feature_data[8][4]``

      - Data attached to each feature. Data entry is only valid if the feature

        is enabled. The array shall be indexed with segment number as the first dimension

        (0..7) and one of V4L2_VP9_SEG_* as the second dimension.

        See :ref:`Segment Feature IDs<vp9_segment_feature>`.

    * - __u8

      - ``feature_enabled[8]``

      - Bitmask defining which features are enabled in each segment. The value for each

        segment is a combination of V4L2_VP9_SEGMENT_FEATURE_ENABLED(id) values where id is

        one of V4L2_VP9_SEG_*. See :ref:`Segment Feature IDs<vp9_segment_feature>`.

    * - __u8

      - ``tree_probs[7]``

      - Specifies the probability values to be used when decoding a Segment-ID.

        See '5.15. Segmentation map' section of :ref:`vp9` for more details.

    * - __u8

      - ``pred_probs[3]``

      - Specifies the probability values to be used when decoding a

        Predicted-Segment-ID. See '6.4.14. Get segment id syntax'

        section of :ref:`vp9` for more details.

    * - __u8

      - ``flags``

      - Combination of V4L2_VP9_SEGMENTATION_FLAG_* flags. See

        :ref:`Segmentation Flags<vp9_segmentation_flags>`.

    * - __u8

      - ``reserved[5]``

      - Applications and drivers must set this to zero.



.. _vp9_segment_feature:



``Segment feature IDs``



.. tabularcolumns:: |p{6.0cm}|p{1cm}|p{10.3cm}|



.. flat-table::

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - ``V4L2_VP9_SEG_LVL_ALT_Q``

      - 0

      - Quantizer segment feature.

    * - ``V4L2_VP9_SEG_LVL_ALT_L``

      - 1

      - Loop filter segment feature.

    * - ``V4L2_VP9_SEG_LVL_REF_FRAME``

      - 2

      - Reference frame segment feature.

    * - ``V4L2_VP9_SEG_LVL_SKIP``

      - 3

      - Skip segment feature.

    * - ``V4L2_VP9_SEG_LVL_MAX``

      - 4

      - Number of segment features.



.. _vp9_segmentation_flags:



``Segmentation Flags``



.. tabularcolumns:: |p{10.6cm}|p{0.8cm}|p{5.9cm}|



.. flat-table::

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - ``V4L2_VP9_SEGMENTATION_FLAG_ENABLED``

      - 0x01

      - Indicates that this frame makes use of the segmentation tool.

    * - ``V4L2_VP9_SEGMENTATION_FLAG_UPDATE_MAP``

      - 0x02

      - Indicates that the segmentation map should be updated during the

        decoding of this frame.

    * - ``V4L2_VP9_SEGMENTATION_FLAG_TEMPORAL_UPDATE``

      - 0x04

      - Indicates that the updates to the segmentation map are coded

        relative to the existing segmentation map.

    * - ``V4L2_VP9_SEGMENTATION_FLAG_UPDATE_DATA``

      - 0x08

      - Indicates that new parameters are about to be specified for each

        segment.

    * - ``V4L2_VP9_SEGMENTATION_FLAG_ABS_OR_DELTA_UPDATE``

      - 0x10

      - Indicates that the segmentation parameters represent the actual values

        to be used.



.. c:type:: v4l2_vp9_quantization



Encodes the quantization parameters. See section '7.2.9 Quantization params

syntax' of the VP9 specification for more details.



.. tabularcolumns:: |p{0.8cm}|p{4cm}|p{12.4cm}|



.. cssclass:: longtable



.. flat-table:: struct v4l2_vp9_quantization

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - __u8

      - ``base_q_idx``

      - Indicates the base frame qindex.

    * - __s8

      - ``delta_q_y_dc``

      - Indicates the Y DC quantizer relative to base_q_idx.

    * - __s8

      - ``delta_q_uv_dc``

      - Indicates the UV DC quantizer relative to base_q_idx.

    * - __s8

      - ``delta_q_uv_ac``

      - Indicates the UV AC quantizer relative to base_q_idx.

    * - __u8

      - ``reserved[4]``

      - Applications and drivers must set this to zero.



.. c:type:: v4l2_vp9_loop_filter



This structure contains all loop filter related parameters. See sections

'7.2.8 Loop filter semantics' of the :ref:`vp9` specification for more details.



.. tabularcolumns:: |p{0.8cm}|p{4cm}|p{12.4cm}|



.. cssclass:: longtable



.. flat-table:: struct v4l2_vp9_loop_filter

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - __s8

      - ``ref_deltas[4]``

      - Contains the adjustment needed for the filter level based on the chosen

        reference frame.

    * - __s8

      - ``mode_deltas[2]``

      - Contains the adjustment needed for the filter level based on the chosen

        mode.

    * - __u8

      - ``level``

      - Indicates the loop filter strength.

    * - __u8

      - ``sharpness``

      - Indicates the sharpness level.

    * - __u8

      - ``flags``

      - Combination of V4L2_VP9_LOOP_FILTER_FLAG_* flags.

        See :ref:`Loop Filter Flags <vp9_loop_filter_flags>`.

    * - __u8

      - ``reserved[7]``

      - Applications and drivers must set this to zero.





.. _vp9_loop_filter_flags:



``Loop Filter Flags``



.. tabularcolumns:: |p{9.6cm}|p{0.5cm}|p{7.2cm}|



.. flat-table::

    :header-rows:  0

    :stub-columns: 0

    :widths:       1 1 2



    * - ``V4L2_VP9_LOOP_FILTER_FLAG_DELTA_ENABLED``

      - 0x1

      - When set, the filter level depends on the mode and reference frame used

        to predict a block.

    * - ``V4L2_VP9_LOOP_FILTER_FLAG_DELTA_UPDATE``

      - 0x2

      - When set, the bitstream contains additional syntax elements that

        specify which mode and reference frame deltas are to be updated.

Documentation/userspace-api/media/v4l/pixfmt-compressed.rst

+15 −0
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@@ -172,6 +172,21 @@ Compressed Formats 
      - VP9 compressed video frame. The encoder generates one

	compressed frame per buffer, and the decoder requires one

	compressed frame per buffer.

    * .. _V4L2-PIX-FMT-VP9-FRAME:



      - ``V4L2_PIX_FMT_VP9_FRAME``

      - 'VP9F'

      - VP9 parsed frame, including the frame header, as extracted from the container.

	This format is adapted for stateless video decoders that implement a

	VP9 pipeline with the :ref:`stateless_decoder`.

	Metadata associated with the frame to decode is required to be passed

	through the ``V4L2_CID_STATELESS_VP9_FRAME`` and

	the ``V4L2_CID_STATELESS_VP9_COMPRESSED_HDR`` controls.

	See the :ref:`associated Codec Control IDs <v4l2-codec-stateless-vp9>`.

	Exactly one output and one capture buffer must be provided for use with

	this pixel format. The output buffer must contain the appropriate number

	of macroblocks to decode a full corresponding frame to the matching

	capture buffer.

    * .. _V4L2-PIX-FMT-HEVC:



      - ``V4L2_PIX_FMT_HEVC``

Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst

+8 −0
Original line number Diff line number Diff line
@@ -233,6 +233,14 @@ still cause this situation. 
      - ``p_mpeg2_quantisation``

      - A pointer to a struct :c:type:`v4l2_ctrl_mpeg2_quantisation`. Valid if this control is

        of type ``V4L2_CTRL_TYPE_MPEG2_QUANTISATION``.

    * - struct :c:type:`v4l2_ctrl_vp9_compressed_hdr` *

      - ``p_vp9_compressed_hdr_probs``

      - A pointer to a struct :c:type:`v4l2_ctrl_vp9_compressed_hdr`. Valid if this

        control is of type ``V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR``.

    * - struct :c:type:`v4l2_ctrl_vp9_frame` *

      - ``p_vp9_frame``

      - A pointer to a struct :c:type:`v4l2_ctrl_vp9_frame`. Valid if this

        control is of type ``V4L2_CTRL_TYPE_VP9_FRAME``.

    * - struct :c:type:`v4l2_ctrl_hdr10_cll_info` *

      - ``p_hdr10_cll``

      - A pointer to a struct :c:type:`v4l2_ctrl_hdr10_cll_info`. Valid if this control is

Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst

+12 −0
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@@ -513,6 +513,18 @@ See also the examples in :ref:`control`. 
      - n/a

      - A struct :c:type:`v4l2_ctrl_hevc_decode_params`, containing HEVC

	decoding parameters for stateless video decoders.

    * - ``V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR``

      - n/a

      - n/a

      - n/a

      - A struct :c:type:`v4l2_ctrl_vp9_compressed_hdr`, containing VP9

	probabilities updates for stateless video decoders.

    * - ``V4L2_CTRL_TYPE_VP9_FRAME``

      - n/a

      - n/a

      - n/a

      - A struct :c:type:`v4l2_ctrl_vp9_frame`, containing VP9

	frame decode parameters for stateless video decoders.



.. raw:: latex