Re: [PATCH v10 17/17] media: uapi: move HEVC stateless controls out of staging

From: Ezequiel Garcia
Date: Tue Jul 05 2022 - 11:58:56 EST

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In reply to: Benjamin Gaignard: "[PATCH v10 17/17] media: uapi: move HEVC stateless controls out of staging"
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On Tue, Jul 05, 2022 at 10:54:20AM +0200, Benjamin Gaignard wrote:
> HEVC uAPI is used by 2 mainline drivers (Hantro, Cedrus)
> and at least 2 out-of-tree drivers (rkvdec, RPi).
> The uAPI has been reviewed so it is time to make it 'public' by
> un-staging it.
>
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
> Acked-by: Nicolas Dufresne <nicolas.dufresne@xxxxxxxxxxxxx>
> Tested-by: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>

Reviewed-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxxxxxxxxx>

Thanks,
Ezequiel

> ---
> version 9:
> - fix the waring reported by 'scripts/kernel-doc -none
> include/uapi/linux/v4l2-controls.h'
> - fix various typo
>
> .../media/v4l/ext-ctrls-codec-stateless.rst | 897 +++++++++++++++++
> .../media/v4l/ext-ctrls-codec.rst | 901 ------------------
> .../media/v4l/pixfmt-compressed.rst | 2 +-
> .../media/v4l/vidioc-g-ext-ctrls.rst | 20 +
> include/media/hevc-ctrls.h | 474 ---------
> include/media/v4l2-ctrls.h | 6 -
> include/uapi/linux/v4l2-controls.h | 459 +++++++++
> include/uapi/linux/videodev2.h | 5 +
> 8 files changed, 1382 insertions(+), 1382 deletions(-)
> delete mode 100644 include/media/hevc-ctrls.h
>
> diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
> index bee73065e993..38bb6339ff17 100644
> --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
> +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
> @@ -2048,3 +2048,900 @@ This structure contains all loop filter related parameters. See sections
> - 0x2
> - When set, the bitstream contains additional syntax elements that
> specify which mode and reference frame deltas are to be updated.
> +
> +.. _v4l2-codec-stateless-hevc:
> +
> +``V4L2_CID_STATELESS_HEVC_SPS (struct)``
> + Specifies the Sequence Parameter Set fields (as extracted from the
> + bitstream) for the associated HEVC slice data.
> + These bitstream parameters are defined according to :ref:`hevc`.
> + They are described in section 7.4.3.2 "Sequence parameter set RBSP
> + semantics" of the specification.
> +
> +.. c:type:: v4l2_ctrl_hevc_sps
> +
> +.. raw:: latex
> +
> + \small
> +
> +.. tabularcolumns:: |p{1.2cm}|p{9.2cm}|p{6.9cm}|
> +
> +.. cssclass:: longtable
> +
> +.. flat-table:: struct v4l2_ctrl_hevc_sps
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - __u8
> + - ``video_parameter_set_id``
> + - Specifies the value of the vps_video_parameter_set_id of the active VPS
> + as described in section "7.4.3.2.1 General sequence parameter set RBSP semantics"
> + of H.265 specifications.
> + * - __u8
> + - ``seq_parameter_set_id``
> + - Provides an identifier for the SPS for reference by other syntax elements
> + as described in section "7.4.3.2.1 General sequence parameter set RBSP semantics"
> + of H.265 specifications.
> + * - __u16
> + - ``pic_width_in_luma_samples``
> + - Specifies the width of each decoded picture in units of luma samples.
> + * - __u16
> + - ``pic_height_in_luma_samples``
> + - Specifies the height of each decoded picture in units of luma samples.
> + * - __u8
> + - ``bit_depth_luma_minus8``
> + - This value plus 8 specifies the bit depth of the samples of the luma array.
> + * - __u8
> + - ``bit_depth_chroma_minus8``
> + - This value plus 8 specifies the bit depth of the samples of the chroma arrays.
> + * - __u8
> + - ``log2_max_pic_order_cnt_lsb_minus4``
> + - Specifies the value of the variable MaxPicOrderCntLsb.
> + * - __u8
> + - ``sps_max_dec_pic_buffering_minus1``
> + - This value plus 1 specifies the maximum required size of the decoded picture buffer for
> + the coded video sequence (CVS).
> + * - __u8
> + - ``sps_max_num_reorder_pics``
> + - Indicates the maximum allowed number of pictures.
> + * - __u8
> + - ``sps_max_latency_increase_plus1``
> + - Used to signal MaxLatencyPictures, which indicates the maximum number of
> + pictures that can precede any picture in output order and follow that
> + picture in decoding order.
> + * - __u8
> + - ``log2_min_luma_coding_block_size_minus3``
> + - This value plus 3 specifies the minimum luma coding block size.
> + * - __u8
> + - ``log2_diff_max_min_luma_coding_block_size``
> + - Specifies the difference between the maximum and minimum luma coding block size.
> + * - __u8
> + - ``log2_min_luma_transform_block_size_minus2``
> + - This value plus 2 specifies the minimum luma transform block size.
> + * - __u8
> + - ``log2_diff_max_min_luma_transform_block_size``
> + - Specifies the difference between the maximum and minimum luma transform block size.
> + * - __u8
> + - ``max_transform_hierarchy_depth_inter``
> + - Specifies the maximum hierarchy depth for transform units of coding units coded
> + in inter prediction mode.
> + * - __u8
> + - ``max_transform_hierarchy_depth_intra``
> + - Specifies the maximum hierarchy depth for transform units of coding units coded in
> + intra prediction mode.
> + * - __u8
> + - ``pcm_sample_bit_depth_luma_minus1``
> + - This value plus 1 specifies the number of bits used to represent each of PCM sample values of the
> + luma component.
> + * - __u8
> + - ``pcm_sample_bit_depth_chroma_minus1``
> + - Specifies the number of bits used to represent each of PCM sample values of
> + the chroma components.
> + * - __u8
> + - ``log2_min_pcm_luma_coding_block_size_minus3``
> + - Plus 3 specifies the minimum size of coding blocks.
> + * - __u8
> + - ``log2_diff_max_min_pcm_luma_coding_block_size``
> + - Specifies the difference between the maximum and minimum size of coding blocks.
> + * - __u8
> + - ``num_short_term_ref_pic_sets``
> + - Specifies the number of st_ref_pic_set() syntax structures included in the SPS.
> + * - __u8
> + - ``num_long_term_ref_pics_sps``
> + - Specifies the number of candidate long-term reference pictures that are
> + specified in the SPS.
> + * - __u8
> + - ``chroma_format_idc``
> + - Specifies the chroma sampling.
> + * - __u8
> + - ``sps_max_sub_layers_minus1``
> + - This value plus 1 specifies the maximum number of temporal sub-layers.
> + * - __u64
> + - ``flags``
> + - See :ref:`Sequence Parameter Set Flags <hevc_sps_flags>`
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> +.. _hevc_sps_flags:
> +
> +``Sequence Parameter Set Flags``
> +
> +.. raw:: latex
> +
> + \small
> +
> +.. cssclass:: longtable
> +
> +.. flat-table::
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - ``V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE``
> + - 0x00000001
> + -
> + * - ``V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED``
> + - 0x00000002
> + -
> + * - ``V4L2_HEVC_SPS_FLAG_AMP_ENABLED``
> + - 0x00000004
> + -
> + * - ``V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET``
> + - 0x00000008
> + -
> + * - ``V4L2_HEVC_SPS_FLAG_PCM_ENABLED``
> + - 0x00000010
> + -
> + * - ``V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED``
> + - 0x00000020
> + -
> + * - ``V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT``
> + - 0x00000040
> + -
> + * - ``V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED``
> + - 0x00000080
> + -
> + * - ``V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED``
> + - 0x00000100
> + -
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> +``V4L2_CID_STATELESS_HEVC_PPS (struct)``
> + Specifies the Picture Parameter Set fields (as extracted from the
> + bitstream) for the associated HEVC slice data.
> + These bitstream parameters are defined according to :ref:`hevc`.
> + They are described in section 7.4.3.3 "Picture parameter set RBSP
> + semantics" of the specification.
> +
> +.. c:type:: v4l2_ctrl_hevc_pps
> +
> +.. tabularcolumns:: |p{1.2cm}|p{8.6cm}|p{7.5cm}|
> +
> +.. cssclass:: longtable
> +
> +.. flat-table:: struct v4l2_ctrl_hevc_pps
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - __u8
> + - ``pic_parameter_set_id``
> + - Identifies the PPS for reference by other syntax elements.
> + * - __u8
> + - ``num_extra_slice_header_bits``
> + - Specifies the number of extra slice header bits that are present
> + in the slice header RBSP for coded pictures referring to the PPS.
> + * - __u8
> + - ``num_ref_idx_l0_default_active_minus1``
> + - This value plus 1 specifies the inferred value of num_ref_idx_l0_active_minus1
> + * - __u8
> + - ``num_ref_idx_l1_default_active_minus1``
> + - This value plus 1 specifies the inferred value of num_ref_idx_l1_active_minus1
> + * - __s8
> + - ``init_qp_minus26``
> + - This value plus 26 specifies the initial value of SliceQp Y for each slice
> + referring to the PPS.
> + * - __u8
> + - ``diff_cu_qp_delta_depth``
> + - Specifies the difference between the luma coding tree block size
> + and the minimum luma coding block size of coding units that
> + convey cu_qp_delta_abs and cu_qp_delta_sign_flag.
> + * - __s8
> + - ``pps_cb_qp_offset``
> + - Specify the offsets to the luma quantization parameter Cb.
> + * - __s8
> + - ``pps_cr_qp_offset``
> + - Specify the offsets to the luma quantization parameter Cr.
> + * - __u8
> + - ``num_tile_columns_minus1``
> + - This value plus 1 specifies the number of tile columns partitioning the picture.
> + * - __u8
> + - ``num_tile_rows_minus1``
> + - This value plus 1 specifies the number of tile rows partitioning the picture.
> + * - __u8
> + - ``column_width_minus1[20]``
> + - This value plus 1 specifies the width of the i-th tile column in units of
> + coding tree blocks.
> + * - __u8
> + - ``row_height_minus1[22]``
> + - This value plus 1 specifies the height of the i-th tile row in units of coding
> + tree blocks.
> + * - __s8
> + - ``pps_beta_offset_div2``
> + - Specify the default deblocking parameter offsets for beta divided by 2.
> + * - __s8
> + - ``pps_tc_offset_div2``
> + - Specify the default deblocking parameter offsets for tC divided by 2.
> + * - __u8
> + - ``log2_parallel_merge_level_minus2``
> + - This value plus 2 specifies the value of the variable Log2ParMrgLevel.
> + * - __u8
> + - ``padding[4]``
> + - Applications and drivers must set this to zero.
> + * - __u64
> + - ``flags``
> + - See :ref:`Picture Parameter Set Flags <hevc_pps_flags>`
> +
> +.. _hevc_pps_flags:
> +
> +``Picture Parameter Set Flags``
> +
> +.. raw:: latex
> +
> + \small
> +
> +.. flat-table::
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - ``V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED``
> + - 0x00000001
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT``
> + - 0x00000002
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED``
> + - 0x00000004
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT``
> + - 0x00000008
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED``
> + - 0x00000010
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED``
> + - 0x00000020
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED``
> + - 0x00000040
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT``
> + - 0x00000080
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED``
> + - 0x00000100
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED``
> + - 0x00000200
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED``
> + - 0x00000400
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_TILES_ENABLED``
> + - 0x00000800
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED``
> + - 0x00001000
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED``
> + - 0x00002000
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED``
> + - 0x00004000
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED``
> + - 0x00008000
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER``
> + - 0x00010000
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT``
> + - 0x00020000
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT``
> + - 0x00040000
> + -
> + * - ``V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT``
> + - 0x00080000
> + - Specifies the presence of deblocking filter control syntax elements in
> + the PPS
> + * - ``V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING``
> + - 0x00100000
> + - Specifies that tile column boundaries and likewise tile row boundaries
> + are distributed uniformly across the picture
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> +``V4L2_CID_STATELESS_HEVC_SLICE_PARAMS (struct)``
> + Specifies various slice-specific parameters, especially from the NAL unit
> + header, general slice segment header and weighted prediction parameter
> + parts of the bitstream.
> + These bitstream parameters are defined according to :ref:`hevc`.
> + They are described in section 7.4.7 "General slice segment header
> + semantics" of the specification.
> + This control is a dynamically sized 1-dimensional array,
> + V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag must be set when using it.
> +
> +.. c:type:: v4l2_ctrl_hevc_slice_params
> +
> +.. raw:: latex
> +
> + \scriptsize
> +
> +.. tabularcolumns:: |p{5.4cm}|p{6.8cm}|p{5.1cm}|
> +
> +.. cssclass:: longtable
> +
> +.. flat-table:: struct v4l2_ctrl_hevc_slice_params
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - __u32
> + - ``bit_size``
> + - Size (in bits) of the current slice data.
> + * - __u32
> + - ``data_byte_offset``
> + - Offset (in byte) to the video data in the current slice data.
> + * - __u32
> + - ``num_entry_point_offsets``
> + - Specifies the number of entry point offset syntax elements in the slice header.
> + * - __u8
> + - ``nal_unit_type``
> + - Specifies the coding type of the slice (B, P or I).
> + * - __u8
> + - ``nuh_temporal_id_plus1``
> + - Minus 1 specifies a temporal identifier for the NAL unit.
> + * - __u8
> + - ``slice_type``
> + -
> + (V4L2_HEVC_SLICE_TYPE_I, V4L2_HEVC_SLICE_TYPE_P or
> + V4L2_HEVC_SLICE_TYPE_B).
> + * - __u8
> + - ``colour_plane_id``
> + - Specifies the colour plane associated with the current slice.
> + * - __s32
> + - ``slice_pic_order_cnt``
> + - Specifies the picture order count.
> + * - __u8
> + - ``num_ref_idx_l0_active_minus1``
> + - This value plus 1 specifies the maximum reference index for reference picture list 0
> + that may be used to decode the slice.
> + * - __u8
> + - ``num_ref_idx_l1_active_minus1``
> + - This value plus 1 specifies the maximum reference index for reference picture list 1
> + that may be used to decode the slice.
> + * - __u8
> + - ``collocated_ref_idx``
> + - Specifies the reference index of the collocated picture used for
> + temporal motion vector prediction.
> + * - __u8
> + - ``five_minus_max_num_merge_cand``
> + - Specifies the maximum number of merging motion vector prediction
> + candidates supported in the slice subtracted from 5.
> + * - __s8
> + - ``slice_qp_delta``
> + - Specifies the initial value of QpY to be used for the coding blocks in the slice.
> + * - __s8
> + - ``slice_cb_qp_offset``
> + - Specifies a difference to be added to the value of pps_cb_qp_offset.
> + * - __s8
> + - ``slice_cr_qp_offset``
> + - Specifies a difference to be added to the value of pps_cr_qp_offset.
> + * - __s8
> + - ``slice_act_y_qp_offset``
> + - Specifies the offset to the luma of quantization parameter qP derived in section 8.6.2
> + * - __s8
> + - ``slice_act_cb_qp_offset``
> + - Specifies the offset to the cb of quantization parameter qP derived in section 8.6.2
> + * - __s8
> + - ``slice_act_cr_qp_offset``
> + - Specifies the offset to the cr of quantization parameter qP derived in section 8.6.2
> + * - __s8
> + - ``slice_beta_offset_div2``
> + - Specify the deblocking parameter offsets for beta divided by 2.
> + * - __s8
> + - ``slice_tc_offset_div2``
> + - Specify the deblocking parameter offsets for tC divided by 2.
> + * - __u8
> + - ``pic_struct``
> + - Indicates whether a picture should be displayed as a frame or as one or more fields.
> + * - __u32
> + - ``slice_segment_addr``
> + - Specifies the address of the first coding tree block in the slice segment.
> + * - __u8
> + - ``ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> + - The list of L0 reference elements as indices in the DPB.
> + * - __u8
> + - ``ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> + - The list of L1 reference elements as indices in the DPB.
> + * - __u16
> + - ``short_term_ref_pic_set_size``
> + - Specifies the size, in bits, of the short-term reference picture set, described as st_ref_pic_set()
> + in the specification, included in the slice header or SPS (section 7.3.6.1).
> + * - __u16
> + - ``long_term_ref_pic_set_size``
> + - Specifies the size, in bits, of the long-term reference picture set include in the slice header
> + or SPS. It is the number of bits in the conditional block if(long_term_ref_pics_present_flag)
> + in section 7.3.6.1 of the specification.
> + * - __u8
> + - ``padding``
> + - Applications and drivers must set this to zero.
> + * - struct :c:type:`v4l2_hevc_pred_weight_table`
> + - ``pred_weight_table``
> + - The prediction weight coefficients for inter-picture prediction.
> + * - __u64
> + - ``flags``
> + - See :ref:`Slice Parameters Flags <hevc_slice_params_flags>`
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> +.. _hevc_slice_params_flags:
> +
> +``Slice Parameters Flags``
> +
> +.. raw:: latex
> +
> + \scriptsize
> +
> +.. flat-table::
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA``
> + - 0x00000001
> + -
> + * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA``
> + - 0x00000002
> + -
> + * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED``
> + - 0x00000004
> + -
> + * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO``
> + - 0x00000008
> + -
> + * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT``
> + - 0x00000010
> + -
> + * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0``
> + - 0x00000020
> + -
> + * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV``
> + - 0x00000040
> + -
> + * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED``
> + - 0x00000080
> + -
> + * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED``
> + - 0x00000100
> + -
> + * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT``
> + - 0x00000200
> + -
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> +``V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS (integer)``
> + Specifies entry point offsets in bytes.
> + This control is a dynamically sized array. The number of entry point
> + offsets is reported by the ``elems`` field.
> + This bitstream parameter is defined according to :ref:`hevc`.
> + They are described in section 7.4.7.1 "General slice segment header
> + semantics" of the specification.
> +
> +``V4L2_CID_STATELESS_HEVC_SCALING_MATRIX (struct)``
> + Specifies the HEVC scaling matrix parameters used for the scaling process
> + for transform coefficients.
> + These matrix and parameters are defined according to :ref:`hevc`.
> + They are described in section 7.4.5 "Scaling list data semantics" of
> + the specification.
> +
> +.. c:type:: v4l2_ctrl_hevc_scaling_matrix
> +
> +.. raw:: latex
> +
> + \scriptsize
> +
> +.. tabularcolumns:: |p{5.4cm}|p{6.8cm}|p{5.1cm}|
> +
> +.. cssclass:: longtable
> +
> +.. flat-table:: struct v4l2_ctrl_hevc_scaling_matrix
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - __u8
> + - ``scaling_list_4x4[6][16]``
> + - Scaling list is used for the scaling process for transform
> + coefficients. The values on each scaling list are expected
> + in raster scan order.
> + * - __u8
> + - ``scaling_list_8x8[6][64]``
> + - Scaling list is used for the scaling process for transform
> + coefficients. The values on each scaling list are expected
> + in raster scan order.
> + * - __u8
> + - ``scaling_list_16x16[6][64]``
> + - Scaling list is used for the scaling process for transform
> + coefficients. The values on each scaling list are expected
> + in raster scan order.
> + * - __u8
> + - ``scaling_list_32x32[2][64]``
> + - Scaling list is used for the scaling process for transform
> + coefficients. The values on each scaling list are expected
> + in raster scan order.
> + * - __u8
> + - ``scaling_list_dc_coef_16x16[6]``
> + - Scaling list is used for the scaling process for transform
> + coefficients. The values on each scaling list are expected
> + in raster scan order.
> + * - __u8
> + - ``scaling_list_dc_coef_32x32[2]``
> + - Scaling list is used for the scaling process for transform
> + coefficients. The values on each scaling list are expected
> + in raster scan order.
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> +.. c:type:: v4l2_hevc_dpb_entry
> +
> +.. raw:: latex
> +
> + \small
> +
> +.. tabularcolumns:: |p{1.0cm}|p{4.2cm}|p{12.1cm}|
> +
> +.. flat-table:: struct v4l2_hevc_dpb_entry
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - __u64
> + - ``timestamp``
> + - Timestamp of the V4L2 capture buffer to use as reference, used
> + with B-coded and P-coded frames. 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
> + - ``flags``
> + - Long term flag for the reference frame
> + (V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE). The flag is set as
> + described in the ITU HEVC specification chapter "8.3.2 Decoding
> + process for reference picture set".
> + * - __u8
> + - ``field_pic``
> + - Whether the reference is a field picture or a frame.
> + See :ref:`HEVC dpb field pic Flags <hevc_dpb_field_pic_flags>`
> + * - __s32
> + - ``pic_order_cnt_val``
> + - The picture order count of the current picture.
> + * - __u8
> + - ``padding[2]``
> + - Applications and drivers must set this to zero.
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> +.. _hevc_dpb_field_pic_flags:
> +
> +``HEVC dpb field pic Flags``
> +
> +.. raw:: latex
> +
> + \scriptsize
> +
> +.. flat-table::
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME``
> + - 0
> + - (progressive) Frame
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_FIELD``
> + - 1
> + - Top field
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_FIELD``
> + - 2
> + - Bottom field
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM``
> + - 3
> + - Top field, bottom field, in that order
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP``
> + - 4
> + - Bottom field, top field, in that order
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM_TOP``
> + - 5
> + - Top field, bottom field, top field repeated, in that order
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM``
> + - 6
> + - Bottom field, top field, bottom field repeated, in that order
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME_DOUBLING``
> + - 7
> + - Frame doubling
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME_TRIPLING``
> + - 8
> + - Frame tripling
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_PREVIOUS_BOTTOM``
> + - 9
> + - Top field paired with previous bottom field in output order
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_PREVIOUS_TOP``
> + - 10
> + - Bottom field paired with previous top field in output order
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_NEXT_BOTTOM``
> + - 11
> + - Top field paired with next bottom field in output order
> + * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_NEXT_TOP``
> + - 12
> + - Bottom field paired with next top field in output order
> +
> +.. c:type:: v4l2_hevc_pred_weight_table
> +
> +.. raw:: latex
> +
> + \footnotesize
> +
> +.. tabularcolumns:: |p{0.8cm}|p{10.6cm}|p{5.9cm}|
> +
> +.. flat-table:: struct v4l2_hevc_pred_weight_table
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - __s8
> + - ``delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> + - The difference of the weighting factor applied to the luma
> + prediction value for list 0.
> + * - __s8
> + - ``luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> + - The additive offset applied to the luma prediction value for list 0.
> + * - __s8
> + - ``delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
> + - The difference of the weighting factor applied to the chroma
> + prediction value for list 0.
> + * - __s8
> + - ``chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
> + - The difference of the additive offset applied to the chroma
> + prediction values for list 0.
> + * - __s8
> + - ``delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> + - The difference of the weighting factor applied to the luma
> + prediction value for list 1.
> + * - __s8
> + - ``luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> + - The additive offset applied to the luma prediction value for list 1.
> + * - __s8
> + - ``delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
> + - The difference of the weighting factor applied to the chroma
> + prediction value for list 1.
> + * - __s8
> + - ``chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
> + - The difference of the additive offset applied to the chroma
> + prediction values for list 1.
> + * - __u8
> + - ``luma_log2_weight_denom``
> + - The base 2 logarithm of the denominator for all luma weighting
> + factors.
> + * - __s8
> + - ``delta_chroma_log2_weight_denom``
> + - The difference of the base 2 logarithm of the denominator for
> + all chroma weighting factors.
> + * - __u8
> + - ``padding[6]``
> + - Applications and drivers must set this to zero.
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> +``V4L2_CID_STATELESS_HEVC_DECODE_MODE (enum)``
> + Specifies the decoding mode to use. Currently exposes slice-based and
> + frame-based decoding but new modes might be added later on.
> + This control is used as a modifier for V4L2_PIX_FMT_HEVC_SLICE
> + pixel format. Applications that support V4L2_PIX_FMT_HEVC_SLICE
> + are required to set this control in order to specify the decoding mode
> + that is expected for the buffer.
> + Drivers may expose a single or multiple decoding modes, depending
> + on what they can support.
> +
> +.. c:type:: v4l2_stateless_hevc_decode_mode
> +
> +.. raw:: latex
> +
> + \small
> +
> +.. tabularcolumns:: |p{9.4cm}|p{0.6cm}|p{7.3cm}|
> +
> +.. flat-table::
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - ``V4L2_STATELESS_HEVC_DECODE_MODE_SLICE_BASED``
> + - 0
> + - Decoding is done at the slice granularity.
> + The OUTPUT buffer must contain a single slice.
> + * - ``V4L2_STATELESS_HEVC_DECODE_MODE_FRAME_BASED``
> + - 1
> + - Decoding is done at the frame granularity.
> + The OUTPUT buffer must contain all slices needed to decode the
> + frame.
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> +``V4L2_CID_STATELESS_HEVC_START_CODE (enum)``
> + Specifies the HEVC slice start code expected for each slice.
> + This control is used as a modifier for V4L2_PIX_FMT_HEVC_SLICE
> + pixel format. Applications that support V4L2_PIX_FMT_HEVC_SLICE
> + are required to set this control in order to specify the start code
> + that is expected for the buffer.
> + Drivers may expose a single or multiple start codes, depending
> + on what they can support.
> +
> +.. c:type:: v4l2_stateless_hevc_start_code
> +
> +.. tabularcolumns:: |p{9.2cm}|p{0.6cm}|p{7.5cm}|
> +
> +.. flat-table::
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - ``V4L2_STATELESS_HEVC_START_CODE_NONE``
> + - 0
> + - Selecting this value specifies that HEVC slices are passed
> + to the driver without any start code. The bitstream data should be
> + according to :ref:`hevc` 7.3.1.1 General NAL unit syntax, hence
> + contains emulation prevention bytes when required.
> + * - ``V4L2_STATELESS_HEVC_START_CODE_ANNEX_B``
> + - 1
> + - Selecting this value specifies that HEVC slices are expected
> + to be prefixed by Annex B start codes. According to :ref:`hevc`
> + valid start codes can be 3-bytes 0x000001 or 4-bytes 0x00000001.
> +
> +.. raw:: latex
> +
> + \normalsize
> +
> +``V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID (integer)``
> + Specifies a priority identifier for the NAL unit, which will be applied to
> + the base layer. By default this value is set to 0 for the base layer,
> + and the next layer will have the priority ID assigned as 1, 2, 3 and so on.
> + The video encoder can't decide the priority id to be applied to a layer,
> + so this has to come from client.
> + This is applicable to H264 and valid Range is from 0 to 63.
> + Source Rec. ITU-T H.264 (06/2019); G.7.4.1.1, G.8.8.1.
> +
> +``V4L2_CID_MPEG_VIDEO_LTR_COUNT (integer)``
> + Specifies the maximum number of Long Term Reference (LTR) frames at any
> + given time that the encoder can keep.
> + This is applicable to the H264 and HEVC encoders.
> +
> +``V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX (integer)``
> + After setting this control the frame that will be queued next
> + will be marked as a Long Term Reference (LTR) frame
> + and given this LTR index which ranges from 0 to LTR_COUNT-1.
> + This is applicable to the H264 and HEVC encoders.
> + Source Rec. ITU-T H.264 (06/2019); Table 7.9
> +
> +``V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES (bitmask)``
> + Specifies the Long Term Reference (LTR) frame(s) to be used for
> + encoding the next frame queued after setting this control.
> + This provides a bitmask which consists of bits [0, LTR_COUNT-1].
> + This is applicable to the H264 and HEVC encoders.
> +
> +``V4L2_CID_STATELESS_HEVC_DECODE_PARAMS (struct)``
> + Specifies various decode parameters, especially the references picture order
> + count (POC) for all the lists (short, long, before, current, after) and the
> + number of entries for each of them.
> + These parameters are defined according to :ref:`hevc`.
> + They are described in section 8.3 "Slice decoding process" of the
> + specification.
> +
> +.. c:type:: v4l2_ctrl_hevc_decode_params
> +
> +.. cssclass:: longtable
> +
> +.. flat-table:: struct v4l2_ctrl_hevc_decode_params
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - __s32
> + - ``pic_order_cnt_val``
> + - PicOrderCntVal as described in section 8.3.1 "Decoding process
> + for picture order count" of the specification.
> + * - __u16
> + - ``short_term_ref_pic_set_size``
> + - Specifies the size, in bits, of the short-term reference picture set, of the first slice
> + described as st_ref_pic_set() in the specification, included in the slice header
> + or SPS (section 7.3.6.1).
> + * - __u16
> + - ``long_term_ref_pic_set_size``
> + - Specifies the size, in bits, of the long-term reference picture set, of the first slice
> + included in the slice header or SPS. It is the number of bits in the conditional block
> + if(long_term_ref_pics_present_flag) in section 7.3.6.1 of the specification.
> + * - __u8
> + - ``num_active_dpb_entries``
> + - The number of entries in ``dpb``.
> + * - __u8
> + - ``num_poc_st_curr_before``
> + - The number of reference pictures in the short-term set that come before
> + the current frame.
> + * - __u8
> + - ``num_poc_st_curr_after``
> + - The number of reference pictures in the short-term set that come after
> + the current frame.
> + * - __u8
> + - ``num_poc_lt_curr``
> + - The number of reference pictures in the long-term set.
> + * - __u8
> + - ``poc_st_curr_before[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> + - PocStCurrBefore as described in section 8.3.2 "Decoding process for reference
> + picture set": provides the index of the short term before references in DPB array.
> + * - __u8
> + - ``poc_st_curr_after[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> + - PocStCurrAfter as described in section 8.3.2 "Decoding process for reference
> + picture set": provides the index of the short term after references in DPB array.
> + * - __u8
> + - ``poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> + - PocLtCurr as described in section 8.3.2 "Decoding process for reference
> + picture set": provides the index of the long term references in DPB array.
> + * - struct :c:type:`v4l2_hevc_dpb_entry`
> + - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> + - The decoded picture buffer, for meta-data about reference frames.
> + * - __u64
> + - ``flags``
> + - See :ref:`Decode Parameters Flags <hevc_decode_params_flags>`
> +
> +.. _hevc_decode_params_flags:
> +
> +``Decode Parameters Flags``
> +
> +.. cssclass:: longtable
> +
> +.. flat-table::
> + :header-rows: 0
> + :stub-columns: 0
> + :widths: 1 1 2
> +
> + * - ``V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC``
> + - 0x00000001
> + -
> + * - ``V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC``
> + - 0x00000002
> + -
> + * - ``V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR``
> + - 0x00000004
> + -
> diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
> index af5cb4e4ef73..2a165ae063fb 100644
> --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
> +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
> @@ -2658,904 +2658,3 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
> Indicates whether to generate SPS and PPS at every IDR. Setting it to 0
> disables generating SPS and PPS at every IDR. Setting it to one enables
> generating SPS and PPS at every IDR.
> -
> -.. _v4l2-mpeg-hevc:
> -
> -``V4L2_CID_STATELESS_HEVC_SPS (struct)``
> - Specifies the Sequence Parameter Set fields (as extracted from the
> - bitstream) for the associated HEVC slice data.
> - These bitstream parameters are defined according to :ref:`hevc`.
> - They are described in section 7.4.3.2 "Sequence parameter set RBSP
> - semantics" of the specification.
> -
> -.. c:type:: v4l2_ctrl_hevc_sps
> -
> -.. raw:: latex
> -
> - \small
> -
> -.. tabularcolumns:: |p{1.2cm}|p{9.2cm}|p{6.9cm}|
> -
> -.. cssclass:: longtable
> -
> -.. flat-table:: struct v4l2_ctrl_hevc_sps
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - __u8
> - - ``video_parameter_set_id``
> - - Specifies the value of the vps_video_parameter_set_id of the active VPS
> - as described in section "7.4.3.2.1 General sequence parameter set RBSP semantics"
> - of H.265 specifications.
> - * - __u8
> - - ``seq_parameter_set_id``
> - - Provides an identifier for the SPS for reference by other syntax elements
> - as described in section "7.4.3.2.1 General sequence parameter set RBSP semantics"
> - of H.265 specifications.
> - * - __u16
> - - ``pic_width_in_luma_samples``
> - - Specifies the width of each decoded picture in units of luma samples.
> - * - __u16
> - - ``pic_height_in_luma_samples``
> - - Specifies the height of each decoded picture in units of luma samples.
> - * - __u8
> - - ``bit_depth_luma_minus8``
> - - This value plus 8 specifies the bit depth of the samples of the luma array.
> - * - __u8
> - - ``bit_depth_chroma_minus8``
> - - This value plus 8 specifies the bit depth of the samples of the chroma arrays.
> - * - __u8
> - - ``log2_max_pic_order_cnt_lsb_minus4``
> - - This value plus 4 specifies the value of the variable MaxPicOrderCntLsb.
> - * - __u8
> - - ``sps_max_dec_pic_buffering_minus1``
> - - This value plus 1 specifies the maximum required size of the decoded picture buffer for
> - the codec video sequence.
> - * - __u8
> - - ``sps_max_num_reorder_pics``
> - - Indicates the maximum allowed number of pictures.
> - * - __u8
> - - ``sps_max_latency_increase_plus1``
> - - Not equal to 0 is used to compute the value of SpsMaxLatencyPictures array.
> - * - __u8
> - - ``log2_min_luma_coding_block_size_minus3``
> - - This value plus 3 specifies the minimum luma coding block size.
> - * - __u8
> - - ``log2_diff_max_min_luma_coding_block_size``
> - - Specifies the difference between the maximum and minimum luma coding block size.
> - * - __u8
> - - ``log2_min_luma_transform_block_size_minus2``
> - - This value plus 2 specifies the minimum luma transform block size.
> - * - __u8
> - - ``log2_diff_max_min_luma_transform_block_size``
> - - Specifies the difference between the maximum and minimum luma transform block size.
> - * - __u8
> - - ``max_transform_hierarchy_depth_inter``
> - - Specifies the maximum hierarchy depth for transform units of coding units coded
> - in inter prediction mode.
> - * - __u8
> - - ``max_transform_hierarchy_depth_intra``
> - - Specifies the maximum hierarchy depth for transform units of coding units coded in
> - intra prediction mode.
> - * - __u8
> - - ``pcm_sample_bit_depth_luma_minus1``
> - - This value plus 1 specifies the number of bits used to represent each of PCM sample
> - values of the luma component.
> - * - __u8
> - - ``pcm_sample_bit_depth_chroma_minus1``
> - - This value plus 1 specifies the number of bits used to represent each of PCM sample
> - values of the chroma components.
> - * - __u8
> - - ``log2_min_pcm_luma_coding_block_size_minus3``
> - - This value plus 3 specifies the minimum size of coding blocks.
> - * - __u8
> - - ``log2_diff_max_min_pcm_luma_coding_block_size``
> - - Specifies the difference between the maximum and minimum size of coding blocks.
> - * - __u8
> - - ``num_short_term_ref_pic_sets``
> - - Specifies the number of st_ref_pic_set() syntax structures included in the SPS.
> - * - __u8
> - - ``num_long_term_ref_pics_sps``
> - - Specifies the number of candidate long-term reference pictures that are
> - specified in the SPS.
> - * - __u8
> - - ``chroma_format_idc``
> - - Specifies the chroma sampling.
> - * - __u8
> - - ``sps_max_sub_layers_minus1``
> - - This value plus 1 specifies the maximum number of temporal sub-layers.
> - * - __u64
> - - ``flags``
> - - See :ref:`Sequence Parameter Set Flags <hevc_sps_flags>`
> -
> -.. raw:: latex
> -
> - \normalsize
> -
> -.. _hevc_sps_flags:
> -
> -``Sequence Parameter Set Flags``
> -
> -.. raw:: latex
> -
> - \small
> -
> -.. cssclass:: longtable
> -
> -.. flat-table::
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - ``V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE``
> - - 0x00000001
> - -
> - * - ``V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED``
> - - 0x00000002
> - -
> - * - ``V4L2_HEVC_SPS_FLAG_AMP_ENABLED``
> - - 0x00000004
> - -
> - * - ``V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET``
> - - 0x00000008
> - -
> - * - ``V4L2_HEVC_SPS_FLAG_PCM_ENABLED``
> - - 0x00000010
> - -
> - * - ``V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED``
> - - 0x00000020
> - -
> - * - ``V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT``
> - - 0x00000040
> - -
> - * - ``V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED``
> - - 0x00000080
> - -
> - * - ``V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED``
> - - 0x00000100
> - -
> -
> -.. raw:: latex
> -
> - \normalsize
> -
> -``V4L2_CID_STATELESS_HEVC_PPS (struct)``
> - Specifies the Picture Parameter Set fields (as extracted from the
> - bitstream) for the associated HEVC slice data.
> - These bitstream parameters are defined according to :ref:`hevc`.
> - They are described in section 7.4.3.3 "Picture parameter set RBSP
> - semantics" of the specification.
> -
> -.. c:type:: v4l2_ctrl_hevc_pps
> -
> -.. tabularcolumns:: |p{1.2cm}|p{8.6cm}|p{7.5cm}|
> -
> -.. cssclass:: longtable
> -
> -.. flat-table:: struct v4l2_ctrl_hevc_pps
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - __u8
> - - ``pic_parameter_set_id``
> - - Identifies the PPS for reference by other syntax elements.
> - * - __u8
> - - ``num_extra_slice_header_bits``
> - - Specifies the number of extra slice header bits that are present
> - in the slice header RBSP for coded pictures referring to the PPS.
> - * - __u8
> - - ``num_ref_idx_l0_default_active_minus1``
> - - This value plus 1 specifies the inferred value of num_ref_idx_l0_active_minus1
> - * - __u8
> - - ``num_ref_idx_l1_default_active_minus1``
> - - This value plus 1 specifies the inferred value of num_ref_idx_l1_active_minus1
> - * - __s8
> - - ``init_qp_minus26``
> - - This value plus 26 specifies the initial value of SliceQp Y for each slice
> - referring to the PPS.
> - * - __u8
> - - ``diff_cu_qp_delta_depth``
> - - Specifies the difference between the luma coding tree block size
> - and the minimum luma coding block size of coding units that
> - convey cu_qp_delta_abs and cu_qp_delta_sign_flag.
> - * - __s8
> - - ``pps_cb_qp_offset``
> - - Specify the offsets to the luma quantization parameter Cb.
> - * - __s8
> - - ``pps_cr_qp_offset``
> - - Specify the offsets to the luma quantization parameter Cr.
> - * - __u8
> - - ``num_tile_columns_minus1``
> - - This value plus 1 specifies the number of tile columns partitioning the picture.
> - * - __u8
> - - ``num_tile_rows_minus1``
> - - This value plus 1 specifies the number of tile rows partitioning the picture.
> - * - __u8
> - - ``column_width_minus1[20]``
> - - Plus 1 specifies the width of each tile column in units of
> - coding tree blocks.
> - * - __u8
> - - ``row_height_minus1[22]``
> - - This value plus 1 specifies the height of each tile row in units of coding
> - tree blocks.
> - * - __s8
> - - ``pps_beta_offset_div2``
> - - Specify the default deblocking parameter offsets for beta divided by 2.
> - * - __s8
> - - ``pps_tc_offset_div2``
> - - Specify the default deblocking parameter offsets for tC divided by 2.
> - * - __u8
> - - ``log2_parallel_merge_level_minus2``
> - - Plus 2 specifies the value of the variable Log2ParMrgLevel.
> - * - __u8
> - - ``padding[4]``
> - - Applications and drivers must set this to zero.
> - * - __u64
> - - ``flags``
> - - See :ref:`Picture Parameter Set Flags <hevc_pps_flags>`
> -
> -.. _hevc_pps_flags:
> -
> -``Picture Parameter Set Flags``
> -
> -.. raw:: latex
> -
> - \small
> -
> -.. flat-table::
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - ``V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED``
> - - 0x00000001
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT``
> - - 0x00000002
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED``
> - - 0x00000004
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT``
> - - 0x00000008
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED``
> - - 0x00000010
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED``
> - - 0x00000020
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED``
> - - 0x00000040
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT``
> - - 0x00000080
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED``
> - - 0x00000100
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED``
> - - 0x00000200
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED``
> - - 0x00000400
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_TILES_ENABLED``
> - - 0x00000800
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED``
> - - 0x00001000
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED``
> - - 0x00002000
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED``
> - - 0x00004000
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED``
> - - 0x00008000
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER``
> - - 0x00010000
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT``
> - - 0x00020000
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT``
> - - 0x00040000
> - -
> - * - ``V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT``
> - - 0x00080000
> - - Specifies the presence of deblocking filter control syntax elements in
> - the PPS
> - * - ``V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING``
> - - 0x00100000
> - - Specifies that tile column boundaries and likewise tile row boundaries
> - are distributed uniformly across the picture
> -
> -.. raw:: latex
> -
> - \normalsize
> -
> -``V4L2_CID_STATELESS_HEVC_SLICE_PARAMS (struct)``
> - Specifies various slice-specific parameters, especially from the NAL unit
> - header, general slice segment header and weighted prediction parameter
> - parts of the bitstream.
> - These bitstream parameters are defined according to :ref:`hevc`.
> - They are described in section 7.4.7 "General slice segment header
> - semantics" of the specification.
> - This control is a dynamically sized 1-dimensional array,
> - V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag must be set when using it.
> -
> -.. c:type:: v4l2_ctrl_hevc_slice_params
> -
> -.. raw:: latex
> -
> - \scriptsize
> -
> -.. tabularcolumns:: |p{5.4cm}|p{6.8cm}|p{5.1cm}|
> -
> -.. cssclass:: longtable
> -
> -.. flat-table:: struct v4l2_ctrl_hevc_slice_params
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - __u32
> - - ``bit_size``
> - - Size (in bits) of the current slice data.
> - * - __u32
> - - ``data_byte_offset``
> - - Offset (in bytes) to the video data in the current slice data.
> - * - __u32
> - - ``num_entry_point_offsets``
> - - Specifies the number of entry point offset syntax elements in the slice header.
> - * - __u8
> - - ``nal_unit_type``
> - - Specifies the coding type of the slice (B, P or I).
> - * - __u8
> - - ``nuh_temporal_id_plus1``
> - - This value minus 1 specifies a temporal identifier for the NAL unit.
> - * - __u8
> - - ``slice_type``
> - -
> - (V4L2_HEVC_SLICE_TYPE_I, V4L2_HEVC_SLICE_TYPE_P or
> - V4L2_HEVC_SLICE_TYPE_B).
> - * - __u8
> - - ``colour_plane_id``
> - - Specifies the colour plane associated with the current slice.
> - * - __s32
> - - ``slice_pic_order_cnt``
> - - Specifies the picture order count.
> - * - __u8
> - - ``num_ref_idx_l0_active_minus1``
> - - This value plus 1 specifies the maximum reference index for
> - reference picture list 0 that may be used to decode the slice.
> - * - __u8
> - - ``num_ref_idx_l1_active_minus1``
> - - This value plus 1 specifies the maximum reference index for
> - reference picture list 1 that may be used to decode the slice.
> - * - __u8
> - - ``collocated_ref_idx``
> - - Specifies the reference index of the collocated picture used for
> - temporal motion vector prediction.
> - * - __u8
> - - ``five_minus_max_num_merge_cand``
> - - Specifies the maximum number of merging motion vector prediction
> - candidates supported in the slice subtracted from 5.
> - * - __s8
> - - ``slice_qp_delta``
> - - Specifies the initial value of QpY to be used for the coding blocks in the slice.
> - * - __s8
> - - ``slice_cb_qp_offset``
> - - Specifies a difference to be added to the value of pps_cb_qp_offset.
> - * - __s8
> - - ``slice_cr_qp_offset``
> - - Specifies a difference to be added to the value of pps_cr_qp_offset.
> - * - __s8
> - - ``slice_act_y_qp_offset``
> - - screen content extension parameters
> - * - __s8
> - - ``slice_act_cb_qp_offset``
> - - screen content extension parameters
> - * - __s8
> - - ``slice_act_cr_qp_offset``
> - - screen content extension parameters
> - * - __s8
> - - ``slice_beta_offset_div2``
> - - Specify the deblocking parameter offsets for beta divided by 2.
> - * - __s8
> - - ``slice_tc_offset_div2``
> - - Specify the deblocking parameter offsets for tC divided by 2.
> - * - __u8
> - - ``pic_struct``
> - - Indicates whether a picture should be displayed as a frame or as one or more fields.
> - * - __u32
> - - ``slice_segment_addr``
> - - Specifies the address of the first coding tree block in the slice segment.
> - * - __u8
> - - ``ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> - - The list of L0 reference elements as indices in the DPB.
> - * - __u8
> - - ``ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> - - The list of L1 reference elements as indices in the DPB.
> - * - __u16
> - - ``short_term_ref_pic_set_size``
> - - Specifies the size, in bits, of the short-term reference picture set, described as st_ref_pic_set()
> - in the specification, included in the slice header or SPS (section 7.3.6.1).
> - * - __u16
> - - ``long_term_ref_pic_set_size``
> - - Specifies the size, in bits, of the long-term reference picture set include in the slice header
> - or SPS. It is the number of bits in the conditional block if(long_term_ref_pics_present_flag)
> - in section 7.3.6.1 of the specification.
> - * - __u8
> - - ``padding``
> - - Applications and drivers must set this to zero.
> - * - struct :c:type:`v4l2_hevc_pred_weight_table`
> - - ``pred_weight_table``
> - - The prediction weight coefficients for inter-picture prediction.
> - * - __u64
> - - ``flags``
> - - See :ref:`Slice Parameters Flags <hevc_slice_params_flags>`
> -
> -.. raw:: latex
> -
> - \normalsize
> -
> -.. _hevc_slice_params_flags:
> -
> -``Slice Parameters Flags``
> -
> -.. raw:: latex
> -
> - \scriptsize
> -
> -.. flat-table::
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA``
> - - 0x00000001
> - -
> - * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA``
> - - 0x00000002
> - -
> - * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED``
> - - 0x00000004
> - -
> - * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO``
> - - 0x00000008
> - -
> - * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT``
> - - 0x00000010
> - -
> - * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0``
> - - 0x00000020
> - -
> - * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV``
> - - 0x00000040
> - -
> - * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED``
> - - 0x00000080
> - -
> - * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED``
> - - 0x00000100
> - -
> - * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT``
> - - 0x00000200
> - -
> -
> -.. raw:: latex
> -
> - \normalsize
> -
> -``V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS (integer)``
> - Specifies entry point offsets in bytes.
> - This control is a dynamically sized array. The number of entry point
> - offsets is reported by the ``elems`` field.
> - This bitstream parameter is defined according to :ref:`hevc`.
> - They are described in section 7.4.7.1 "General slice segment header
> - semantics" of the specification.
> -
> -``V4L2_CID_STATELESS_HEVC_SCALING_MATRIX (struct)``
> - Specifies the HEVC scaling matrix parameters used for the scaling process
> - for transform coefficients.
> - These matrix and parameters are defined according to :ref:`hevc`.
> - They are described in section 7.4.5 "Scaling list data semantics" of
> - the specification.
> -
> -.. c:type:: v4l2_ctrl_hevc_scaling_matrix
> -
> -.. raw:: latex
> -
> - \scriptsize
> -
> -.. tabularcolumns:: |p{5.4cm}|p{6.8cm}|p{5.1cm}|
> -
> -.. cssclass:: longtable
> -
> -.. flat-table:: struct v4l2_ctrl_hevc_scaling_matrix
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - __u8
> - - ``scaling_list_4x4[6][16]``
> - - Scaling list is used for the scaling process for transform
> - coefficients. The values on each scaling list are expected
> - in raster scan order.
> - * - __u8
> - - ``scaling_list_8x8[6][64]``
> - - Scaling list is used for the scaling process for transform
> - coefficients. The values on each scaling list are expected
> - in raster scan order.
> - * - __u8
> - - ``scaling_list_16x16[6][64]``
> - - Scaling list is used for the scaling process for transform
> - coefficients. The values on each scaling list are expected
> - in raster scan order.
> - * - __u8
> - - ``scaling_list_32x32[2][64]``
> - - Scaling list is used for the scaling process for transform
> - coefficients. The values on each scaling list are expected
> - in raster scan order.
> - * - __u8
> - - ``scaling_list_dc_coef_16x16[6]``
> - - Scaling list is used for the scaling process for transform
> - coefficients. The values on each scaling list are expected
> - in raster scan order.
> - * - __u8
> - - ``scaling_list_dc_coef_32x32[2]``
> - - Scaling list is used for the scaling process for transform
> - coefficients. The values on each scaling list are expected
> - in raster scan order.
> -
> -.. raw:: latex
> -
> - \normalsize
> -
> -.. c:type:: v4l2_hevc_dpb_entry
> -
> -.. raw:: latex
> -
> - \small
> -
> -.. tabularcolumns:: |p{1.0cm}|p{4.2cm}|p{12.1cm}|
> -
> -.. flat-table:: struct v4l2_hevc_dpb_entry
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - __u64
> - - ``timestamp``
> - - Timestamp of the V4L2 capture buffer to use as reference, used
> - with B-coded and P-coded frames. 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
> - - ``flags``
> - - Long term flag for the reference frame
> - (V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE). The flag is set as
> - described in the ITU HEVC specification chapter "8.3.2 Decoding
> - process for reference picture set".
> - * - __u8
> - - ``field_pic``
> - - Whether the reference is a field picture or a frame.
> - See :ref:`HEVC dpb field pic Flags <hevc_dpb_field_pic_flags>`
> - * - __s32
> - - ``pic_order_cnt_val``
> - - The picture order count of the current picture.
> - * - __u8
> - - ``padding[2]``
> - - Applications and drivers must set this to zero.
> -
> -.. raw:: latex
> -
> - \normalsize
> -
> -.. _hevc_dpb_field_pic_flags:
> -
> -``HEVC dpb field pic Flags``
> -
> -.. raw:: latex
> -
> - \scriptsize
> -
> -.. flat-table::
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME``
> - - 0
> - - (progressive) Frame
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_FIELD``
> - - 1
> - - Top field
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_FIELD``
> - - 2
> - - Bottom field
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM``
> - - 3
> - - Top field, bottom field, in that order
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP``
> - - 4
> - - Bottom field, top field, in that order
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM_TOP``
> - - 5
> - - Top field, bottom field, top field repeated, in that order
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM``
> - - 6
> - - Bottom field, top field, bottom field repeated, in that order
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME_DOUBLING``
> - - 7
> - - Frame doubling
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME_TRIPLING``
> - - 8
> - - Frame tripling
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_PREVIOUS_BOTTOM``
> - - 9
> - - Top field paired with previous bottom field in output order
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_PREVIOUS_TOP``
> - - 10
> - - Bottom field paired with previous top field in output order
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_NEXT_BOTTOM``
> - - 11
> - - Top field paired with next bottom field in output order
> - * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_NEXT_TOP``
> - - 12
> - - Bottom field paired with next top field in output order
> -
> -.. c:type:: v4l2_hevc_pred_weight_table
> -
> -.. raw:: latex
> -
> - \footnotesize
> -
> -.. tabularcolumns:: |p{0.8cm}|p{10.6cm}|p{5.9cm}|
> -
> -.. flat-table:: struct v4l2_hevc_pred_weight_table
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - __s8
> - - ``delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> - - The difference of the weighting factor applied to the luma
> - prediction value for list 0.
> - * - __s8
> - - ``luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> - - The additive offset applied to the luma prediction value for list 0.
> - * - __s8
> - - ``delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
> - - The difference of the weighting factor applied to the chroma
> - prediction value for list 0.
> - * - __s8
> - - ``chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
> - - The difference of the additive offset applied to the chroma
> - prediction values for list 0.
> - * - __s8
> - - ``delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> - - The difference of the weighting factor applied to the luma
> - prediction value for list 1.
> - * - __s8
> - - ``luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> - - The additive offset applied to the luma prediction value for list 1.
> - * - __s8
> - - ``delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
> - - The difference of the weighting factor applied to the chroma
> - prediction value for list 1.
> - * - __s8
> - - ``chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
> - - The difference of the additive offset applied to the chroma
> - prediction values for list 1.
> - * - __u8
> - - ``luma_log2_weight_denom``
> - - The base 2 logarithm of the denominator for all luma weighting
> - factors.
> - * - __s8
> - - ``delta_chroma_log2_weight_denom``
> - - The difference of the base 2 logarithm of the denominator for
> - all chroma weighting factors.
> - * - __u8
> - - ``padding[6]``
> - - Applications and drivers must set this to zero.
> -
> -.. raw:: latex
> -
> - \normalsize
> -
> -``V4L2_CID_STATELESS_HEVC_DECODE_MODE (enum)``
> - Specifies the decoding mode to use. Currently exposes slice-based and
> - frame-based decoding but new modes might be added later on.
> - This control is used as a modifier for V4L2_PIX_FMT_HEVC_SLICE
> - pixel format. Applications that support V4L2_PIX_FMT_HEVC_SLICE
> - are required to set this control in order to specify the decoding mode
> - that is expected for the buffer.
> - Drivers may expose a single or multiple decoding modes, depending
> - on what they can support.
> -
> - .. note::
> -
> - This menu control is not yet part of the public kernel API and
> - it is expected to change.
> -
> -.. c:type:: v4l2_stateless_hevc_decode_mode
> -
> -.. raw:: latex
> -
> - \small
> -
> -.. tabularcolumns:: |p{9.4cm}|p{0.6cm}|p{7.3cm}|
> -
> -.. flat-table::
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - ``V4L2_STATELESS_HEVC_DECODE_MODE_SLICE_BASED``
> - - 0
> - - Decoding is done at the slice granularity.
> - The OUTPUT buffer must contain a single slice.
> - * - ``V4L2_STATELESS_HEVC_DECODE_MODE_FRAME_BASED``
> - - 1
> - - Decoding is done at the frame granularity.
> - The OUTPUT buffer must contain all slices needed to decode the
> - frame. The OUTPUT buffer must also contain both fields.
> -
> -.. raw:: latex
> -
> - \normalsize
> -
> -``V4L2_CID_STATELESS_HEVC_START_CODE (enum)``
> - Specifies the HEVC slice start code expected for each slice.
> - This control is used as a modifier for V4L2_PIX_FMT_HEVC_SLICE
> - pixel format. Applications that support V4L2_PIX_FMT_HEVC_SLICE
> - are required to set this control in order to specify the start code
> - that is expected for the buffer.
> - Drivers may expose a single or multiple start codes, depending
> - on what they can support.
> -
> - .. note::
> -
> - This menu control is not yet part of the public kernel API and
> - it is expected to change.
> -
> -.. c:type:: v4l2_stateless_hevc_start_code
> -
> -.. tabularcolumns:: |p{9.2cm}|p{0.6cm}|p{7.5cm}|
> -
> -.. flat-table::
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - ``V4L2_STATELESS_HEVC_START_CODE_NONE``
> - - 0
> - - Selecting this value specifies that HEVC slices are passed
> - to the driver without any start code. The bitstream data should be
> - according to :ref:`hevc` 7.3.1.1 General NAL unit syntax, hence
> - contains emulation prevention bytes when required.
> - * - ``V4L2_STATELESS_HEVC_START_CODE_ANNEX_B``
> - - 1
> - - Selecting this value specifies that HEVC slices are expected
> - to be prefixed by Annex B start codes. According to :ref:`hevc`
> - valid start codes can be 3-bytes 0x000001 or 4-bytes 0x00000001.
> -
> -``V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID (integer)``
> - Specifies a priority identifier for the NAL unit, which will be applied to
> - the base layer. By default this value is set to 0 for the base layer,
> - and the next layer will have the priority ID assigned as 1, 2, 3 and so on.
> - The video encoder can't decide the priority id to be applied to a layer,
> - so this has to come from client.
> - This is applicable to H264 and valid Range is from 0 to 63.
> - Source Rec. ITU-T H.264 (06/2019); G.7.4.1.1, G.8.8.1.
> -
> -``V4L2_CID_MPEG_VIDEO_LTR_COUNT (integer)``
> - Specifies the maximum number of Long Term Reference (LTR) frames at any
> - given time that the encoder can keep.
> - This is applicable to the H264 and HEVC encoders.
> -
> -``V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX (integer)``
> - After setting this control the frame that will be queued next
> - will be marked as a Long Term Reference (LTR) frame
> - and given this LTR index which ranges from 0 to LTR_COUNT-1.
> - This is applicable to the H264 and HEVC encoders.
> - Source Rec. ITU-T H.264 (06/2019); Table 7.9
> -
> -``V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES (bitmask)``
> - Specifies the Long Term Reference (LTR) frame(s) to be used for
> - encoding the next frame queued after setting this control.
> - This provides a bitmask which consists of bits [0, LTR_COUNT-1].
> - This is applicable to the H264 and HEVC encoders.
> -
> -``V4L2_CID_STATELESS_HEVC_DECODE_PARAMS (struct)``
> - Specifies various decode parameters, especially the references picture order
> - count (POC) for all the lists (short, long, before, current, after) and the
> - number of entries for each of them.
> - These parameters are defined according to :ref:`hevc`.
> - They are described in section 8.3 "Slice decoding process" of the
> - specification.
> -
> -.. c:type:: v4l2_ctrl_hevc_decode_params
> -
> -.. cssclass:: longtable
> -
> -.. flat-table:: struct v4l2_ctrl_hevc_decode_params
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - __s32
> - - ``pic_order_cnt_val``
> - - PicOrderCntVal as described in section 8.3.1 "Decoding process
> - for picture order count" of the specification.
> - * - __u16
> - - ``short_term_ref_pic_set_size``
> - - Specifies the size, in bits, of the short-term reference picture set, of the first slice
> - described as st_ref_pic_set() in the specification, included in the slice header
> - or SPS (section 7.3.6.1).
> - * - __u16
> - - ``long_term_ref_pic_set_size``
> - - Specifies the size, in bits, of the long-term reference picture set, of the first slice
> - included in the slice header or SPS. It is the number of bits in the conditional block
> - if(long_term_ref_pics_present_flag) in section 7.3.6.1 of the specification.
> - * - __u8
> - - ``num_active_dpb_entries``
> - - The number of entries in ``dpb``.
> - * - __u8
> - - ``num_poc_st_curr_before``
> - - The number of reference pictures in the short-term set that come before
> - the current frame.
> - * - __u8
> - - ``num_poc_st_curr_after``
> - - The number of reference pictures in the short-term set that come after
> - the current frame.
> - * - __u8
> - - ``num_poc_lt_curr``
> - - The number of reference pictures in the long-term set.
> - * - __u8
> - - ``poc_st_curr_before[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> - - PocStCurrBefore as described in section 8.3.2 "Decoding process for reference
> - picture set": provides the index of the short term before references in DPB array.
> - * - __u8
> - - ``poc_st_curr_after[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> - - PocStCurrAfter as described in section 8.3.2 "Decoding process for reference
> - picture set": provides the index of the short term after references in DPB array.
> - * - __u8
> - - ``poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> - - PocLtCurr as described in section 8.3.2 "Decoding process for reference
> - picture set": provides the index of the long term references in DPB array.
> - * - struct :c:type:`v4l2_hevc_dpb_entry`
> - - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
> - - The decoded picture buffer, for meta-data about reference frames.
> - * - __u64
> - - ``flags``
> - - See :ref:`Decode Parameters Flags <hevc_decode_params_flags>`
> -
> -.. _hevc_decode_params_flags:
> -
> -``Decode Parameters Flags``
> -
> -.. cssclass:: longtable
> -
> -.. flat-table::
> - :header-rows: 0
> - :stub-columns: 0
> - :widths: 1 1 2
> -
> - * - ``V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC``
> - - 0x00000001
> - -
> - * - ``V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC``
> - - 0x00000002
> - -
> - * - ``V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR``
> - - 0x00000004
> - -
> diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
> index c352d91a73d8..506dd3c98884 100644
> --- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
> +++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
> @@ -212,7 +212,7 @@ Compressed Formats
> ``V4L2_CID_MPEG_VIDEO_HEVC_SPS``,
> ``V4L2_CID_MPEG_VIDEO_HEVC_PPS``, and
> ``V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS``.
> - See the :ref:`associated Codec Control IDs <v4l2-mpeg-hevc>`.
> + See the :ref:`associated Codec Control IDs <v4l2-codec-stateless-hevc>`.
> Buffers associated with this pixel format must contain the appropriate
> number of macroblocks to decode a full corresponding frame.
> * .. _V4L2-PIX-FMT-FWHT:
> diff --git a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
> index 29971a45a2d4..892cfeb8b988 100644
> --- a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
> +++ b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
> @@ -249,6 +249,26 @@ still cause this situation.
> - ``p_hdr10_mastering``
> - A pointer to a struct :c:type:`v4l2_ctrl_hdr10_mastering_display`. Valid if this control is
> of type ``V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY``.
> + * - struct :c:type:`v4l2_ctrl_hevc_sps` *
> + - ``p_hevc_sps``
> + - A pointer to a struct :c:type:`v4l2_ctrl_hevc_sps`. Valid if this
> + control is of type ``V4L2_CTRL_TYPE_HEVC_SPS``.
> + * - struct :c:type:`v4l2_ctrl_hevc_pps` *
> + - ``p_hevc_pps``
> + - A pointer to a struct :c:type:`v4l2_ctrl_hevc_pps`. Valid if this
> + control is of type ``V4L2_CTRL_TYPE_HEVC_PPS``.
> + * - struct :c:type:`v4l2_ctrl_hevc_slice_params` *
> + - ``p_hevc_slice_params``
> + - A pointer to a struct :c:type:`v4l2_ctrl_hevc_slice_params`. Valid if this
> + control is of type ``V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS``.
> + * - struct :c:type:`v4l2_ctrl_hevc_scaling_matrix` *
> + - ``p_hevc_scaling_matrix``
> + - A pointer to a struct :c:type:`v4l2_ctrl_hevc_scaling_matrix`. Valid if this
> + control is of type ``V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX``.
> + * - struct :c:type:`v4l2_ctrl_hevc_decode_params` *
> + - ``p_hevc_decode_params``
> + - A pointer to a struct :c:type:`v4l2_ctrl_hevc_decode_params`. Valid if this
> + control is of type ``V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS``.
> * - void *
> - ``ptr``
> - A pointer to a compound type which can be an N-dimensional array
> diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h
> deleted file mode 100644
> index c89029b3c5da..000000000000
> --- a/include/media/hevc-ctrls.h
> +++ /dev/null
> @@ -1,474 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> -/*
> - * These are the HEVC state controls for use with stateless HEVC
> - * codec drivers.
> - *
> - * It turns out that these structs are not stable yet and will undergo
> - * more changes. So keep them private until they are stable and ready to
> - * become part of the official public API.
> - */
> -
> -#ifndef _HEVC_CTRLS_H_
> -#define _HEVC_CTRLS_H_
> -
> -#include <linux/videodev2.h>
> -
> -#define V4L2_CID_STATELESS_HEVC_SPS (V4L2_CID_CODEC_BASE + 1008)
> -#define V4L2_CID_STATELESS_HEVC_PPS (V4L2_CID_CODEC_BASE + 1009)
> -#define V4L2_CID_STATELESS_HEVC_SLICE_PARAMS (V4L2_CID_CODEC_BASE + 1010)
> -#define V4L2_CID_STATELESS_HEVC_SCALING_MATRIX (V4L2_CID_CODEC_BASE + 1011)
> -#define V4L2_CID_STATELESS_HEVC_DECODE_PARAMS (V4L2_CID_CODEC_BASE + 1012)
> -#define V4L2_CID_STATELESS_HEVC_DECODE_MODE (V4L2_CID_CODEC_BASE + 1015)
> -#define V4L2_CID_STATELESS_HEVC_START_CODE (V4L2_CID_CODEC_BASE + 1016)
> -#define V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS (V4L2_CID_CODEC_BASE + 1017)
> -
> -enum v4l2_stateless_hevc_decode_mode {
> - V4L2_STATELESS_HEVC_DECODE_MODE_SLICE_BASED,
> - V4L2_STATELESS_HEVC_DECODE_MODE_FRAME_BASED,
> -};
> -
> -enum v4l2_stateless_hevc_start_code {
> - V4L2_STATELESS_HEVC_START_CODE_NONE,
> - V4L2_STATELESS_HEVC_START_CODE_ANNEX_B,
> -};
> -
> -#define V4L2_HEVC_SLICE_TYPE_B 0
> -#define V4L2_HEVC_SLICE_TYPE_P 1
> -#define V4L2_HEVC_SLICE_TYPE_I 2
> -
> -#define V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE (1ULL << 0)
> -#define V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED (1ULL << 1)
> -#define V4L2_HEVC_SPS_FLAG_AMP_ENABLED (1ULL << 2)
> -#define V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET (1ULL << 3)
> -#define V4L2_HEVC_SPS_FLAG_PCM_ENABLED (1ULL << 4)
> -#define V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED (1ULL << 5)
> -#define V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT (1ULL << 6)
> -#define V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED (1ULL << 7)
> -#define V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED (1ULL << 8)
> -
> -/**
> - * struct v4l2_ctrl_hevc_sps - ITU-T Rec. H.265: Sequence parameter set
> - *
> - * @video_parameter_set_id: specifies the value of the
> - * vps_video_parameter_set_id of the active VPS
> - * @seq_parameter_set_id: provides an identifier for the SPS for
> - * reference by other syntax elements
> - * @pic_width_in_luma_samples: specifies the width of each decoded picture
> - * in units of luma samples
> - * @pic_height_in_luma_samples: specifies the height of each decoded picture
> - * in units of luma samples
> - * @bit_depth_luma_minus8: this value plus 8 specifies the bit depth of the
> - * samples of the luma array
> - * @bit_depth_chroma_minus8: this value plus 8 specifies the bit depth of the
> - * samples of the chroma arrays
> - * @log2_max_pic_order_cnt_lsb_minus4: this value plus 4 specifies the value
> - * of the variable MaxPicOrderCntLsb
> - * @sps_max_dec_pic_buffering_minus1: this value plus 1 specifies the maximum
> - * required size of the decoded picture
> - * buffer for the codec video sequence
> - * @sps_max_num_reorder_pics: indicates the maximum allowed number of pictures
> - * @sps_max_latency_increase_plus1: not equal to 0 is used to compute the
> - * value of SpsMaxLatencyPictures array
> - * @log2_min_luma_coding_block_size_minus3: this value plus 3 specifies the
> - * minimum luma coding block size
> - * @log2_diff_max_min_luma_coding_block_size: specifies the difference between
> - * the maximum and minimum luma
> - * coding block size
> - * @log2_min_luma_transform_block_size_minus2: this value plus 2 specifies the
> - * minimum luma transform block size
> - * @log2_diff_max_min_luma_transform_block_size: specifies the difference between
> - * the maximum and minimum luma
> - * transform block size
> - * @max_transform_hierarchy_depth_inter: specifies the maximum hierarchy
> - * depth for transform units of
> - * coding units coded in inter
> - * prediction mode
> - * @max_transform_hierarchy_depth_intra: specifies the maximum hierarchy
> - * depth for transform units of
> - * coding units coded in intra
> - * prediction mode
> - * @pcm_sample_bit_depth_luma_minus1: this value plus 1 specifies the number of
> - * bits used to represent each of PCM sample
> - * values of the luma component
> - * @pcm_sample_bit_depth_chroma_minus1: this value plus 1 specifies the number
> - * of bits used to represent each of PCM
> - * sample values of the chroma components
> - * @log2_min_pcm_luma_coding_block_size_minus3: this value plus 3 specifies the
> - * minimum size of coding blocks
> - * @log2_diff_max_min_pcm_luma_coding_block_size: specifies the difference between
> - * the maximum and minimum size of
> - * coding blocks
> - * @num_short_term_ref_pic_sets: specifies the number of st_ref_pic_set()
> - * syntax structures included in the SPS
> - * @num_long_term_ref_pics_sps: specifies the number of candidate long-term
> - * reference pictures that are specified in the SPS
> - * @chroma_format_idc: specifies the chroma sampling
> - * @sps_max_sub_layers_minus1: this value plus 1 specifies the maximum number
> - * of temporal sub-layers
> - * @reserved: padding field. Should be zeroed by applications.
> - * @flags: see V4L2_HEVC_SPS_FLAG_{}
> - */
> -struct v4l2_ctrl_hevc_sps {
> - __u8 video_parameter_set_id;
> - __u8 seq_parameter_set_id;
> - __u16 pic_width_in_luma_samples;
> - __u16 pic_height_in_luma_samples;
> - __u8 bit_depth_luma_minus8;
> - __u8 bit_depth_chroma_minus8;
> - __u8 log2_max_pic_order_cnt_lsb_minus4;
> - __u8 sps_max_dec_pic_buffering_minus1;
> - __u8 sps_max_num_reorder_pics;
> - __u8 sps_max_latency_increase_plus1;
> - __u8 log2_min_luma_coding_block_size_minus3;
> - __u8 log2_diff_max_min_luma_coding_block_size;
> - __u8 log2_min_luma_transform_block_size_minus2;
> - __u8 log2_diff_max_min_luma_transform_block_size;
> - __u8 max_transform_hierarchy_depth_inter;
> - __u8 max_transform_hierarchy_depth_intra;
> - __u8 pcm_sample_bit_depth_luma_minus1;
> - __u8 pcm_sample_bit_depth_chroma_minus1;
> - __u8 log2_min_pcm_luma_coding_block_size_minus3;
> - __u8 log2_diff_max_min_pcm_luma_coding_block_size;
> - __u8 num_short_term_ref_pic_sets;
> - __u8 num_long_term_ref_pics_sps;
> - __u8 chroma_format_idc;
> - __u8 sps_max_sub_layers_minus1;
> -
> - __u8 reserved[6];
> - __u64 flags;
> -};
> -
> -#define V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED (1ULL << 0)
> -#define V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT (1ULL << 1)
> -#define V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED (1ULL << 2)
> -#define V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT (1ULL << 3)
> -#define V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED (1ULL << 4)
> -#define V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED (1ULL << 5)
> -#define V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED (1ULL << 6)
> -#define V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT (1ULL << 7)
> -#define V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED (1ULL << 8)
> -#define V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED (1ULL << 9)
> -#define V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED (1ULL << 10)
> -#define V4L2_HEVC_PPS_FLAG_TILES_ENABLED (1ULL << 11)
> -#define V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED (1ULL << 12)
> -#define V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED (1ULL << 13)
> -#define V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED (1ULL << 14)
> -#define V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED (1ULL << 15)
> -#define V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER (1ULL << 16)
> -#define V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT (1ULL << 17)
> -#define V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT (1ULL << 18)
> -#define V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT (1ULL << 19)
> -#define V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING (1ULL << 20)
> -
> -/**
> - * struct v4l2_ctrl_hevc_pps - ITU-T Rec. H.265: Picture parameter set
> - *
> - * @pic_parameter_set_id: identifies the PPS for reference by other
> - * syntax elements
> - * @num_extra_slice_header_bits: specifies the number of extra slice header
> - * bits that are present in the slice header RBSP
> - * for coded pictures referring to the PPS.
> - * @num_ref_idx_l0_default_active_minus1: this value plus 1 specifies the inferred
> - * value of num_ref_idx_l0_active_minus1
> - * @num_ref_idx_l1_default_active_minus1: this value plus 1 specifies the inferred
> - * value of num_ref_idx_l1_active_minus1
> - * @init_qp_minus26: this value plus 26 specifies the initial value of SliceQp Y
> - * for each slice referring to the PPS
> - * @diff_cu_qp_delta_depth: specifies the difference between the luma coding
> - * tree block size and the minimum luma coding block
> - * size of coding units that convey cu_qp_delta_abs
> - * and cu_qp_delta_sign_flag
> - * @pps_cb_qp_offset: specify the offsets to the luma quantization parameter Cb
> - * @pps_cr_qp_offset: specify the offsets to the luma quantization parameter Cr
> - * @num_tile_columns_minus1: this value plus 1 specifies the number of tile columns
> - * partitioning the picture
> - * @num_tile_rows_minus1: this value plus 1 specifies the number of tile rows
> - * partitioning the picture
> - * @column_width_minus1: this value plus 1 specifies the width of each tile column
> - * in units of coding tree blocks
> - * @row_height_minus1: this value plus 1 specifies the height of each tile row in
> - * units of coding tree blocks
> - * @pps_beta_offset_div2: specify the default deblocking parameter offsets for
> - * beta divided by 2
> - * @pps_tc_offset_div2: specify the default deblocking parameter offsets for tC
> - * divided by 2
> - * @log2_parallel_merge_level_minus2: this value plus 2 specifies the value of
> - * the variable Log2ParMrgLevel
> - * @reserved: padding field. Should be zeroed by applications.
> - * @flags: see V4L2_HEVC_PPS_FLAG_{}
> - */
> -struct v4l2_ctrl_hevc_pps {
> - __u8 pic_parameter_set_id;
> - __u8 num_extra_slice_header_bits;
> - __u8 num_ref_idx_l0_default_active_minus1;
> - __u8 num_ref_idx_l1_default_active_minus1;
> - __s8 init_qp_minus26;
> - __u8 diff_cu_qp_delta_depth;
> - __s8 pps_cb_qp_offset;
> - __s8 pps_cr_qp_offset;
> - __u8 num_tile_columns_minus1;
> - __u8 num_tile_rows_minus1;
> - __u8 column_width_minus1[20];
> - __u8 row_height_minus1[22];
> - __s8 pps_beta_offset_div2;
> - __s8 pps_tc_offset_div2;
> - __u8 log2_parallel_merge_level_minus2;
> - __u8 reserved;
> - __u64 flags;
> -};
> -
> -#define V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE 0x01
> -
> -#define V4L2_HEVC_SEI_PIC_STRUCT_FRAME 0
> -#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_FIELD 1
> -#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_FIELD 2
> -#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM 3
> -#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP 4
> -#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM_TOP 5
> -#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM 6
> -#define V4L2_HEVC_SEI_PIC_STRUCT_FRAME_DOUBLING 7
> -#define V4L2_HEVC_SEI_PIC_STRUCT_FRAME_TRIPLING 8
> -#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_PREVIOUS_BOTTOM 9
> -#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_PREVIOUS_TOP 10
> -#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_NEXT_BOTTOM 11
> -#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_NEXT_TOP 12
> -
> -#define V4L2_HEVC_DPB_ENTRIES_NUM_MAX 16
> -
> -/**
> - * struct v4l2_hevc_dpb_entry - HEVC decoded picture buffer entry
> - *
> - * @timestamp: timestamp of the V4L2 capture buffer to use as reference.
> - * @flags: long term flag for the reference frame
> - * @field_pic: whether the reference is a field picture or a frame.
> - * @reserved: padding field. Should be zeroed by applications.
> - * @pic_order_cnt_val: the picture order count of the reference.
> - */
> -struct v4l2_hevc_dpb_entry {
> - __u64 timestamp;
> - __u8 flags;
> - __u8 field_pic;
> - __u16 reserved;
> - __s32 pic_order_cnt_val;
> -};
> -
> -/**
> - * struct v4l2_hevc_pred_weight_table - HEVC weighted prediction parameters
> - *
> - * @delta_luma_weight_l0: the difference of the weighting factor applied
> - * to the luma prediction value for list 0
> - * @luma_offset_l0: the additive offset applied to the luma prediction value
> - * for list 0
> - * @delta_chroma_weight_l0: the difference of the weighting factor applied
> - * to the chroma prediction values for list 0
> - * @chroma_offset_l0: the difference of the additive offset applied to
> - * the chroma prediction values for list 0
> - * @delta_luma_weight_l1: the difference of the weighting factor applied
> - * to the luma prediction value for list 1
> - * @luma_offset_l1: the additive offset applied to the luma prediction value
> - * for list 1
> - * @delta_chroma_weight_l1: the difference of the weighting factor applied
> - * to the chroma prediction values for list 1
> - * @chroma_offset_l1: the difference of the additive offset applied to
> - * the chroma prediction values for list 1
> - * @luma_log2_weight_denom: the base 2 logarithm of the denominator for
> - * all luma weighting factors
> - * @delta_chroma_log2_weight_denom: the difference of the base 2 logarithm
> - * of the denominator for all chroma
> - * weighting factors
> - */
> -struct v4l2_hevc_pred_weight_table {
> - __s8 delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> - __s8 luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> - __s8 delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
> - __s8 chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
> -
> - __s8 delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> - __s8 luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> - __s8 delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
> - __s8 chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
> -
> - __u8 luma_log2_weight_denom;
> - __s8 delta_chroma_log2_weight_denom;
> -};
> -
> -#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA (1ULL << 0)
> -#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA (1ULL << 1)
> -#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED (1ULL << 2)
> -#define V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO (1ULL << 3)
> -#define V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT (1ULL << 4)
> -#define V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0 (1ULL << 5)
> -#define V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV (1ULL << 6)
> -#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED (1ULL << 7)
> -#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED (1ULL << 8)
> -#define V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT (1ULL << 9)
> -
> -/**
> - * struct v4l2_ctrl_hevc_slice_params - HEVC slice parameters
> - *
> - * This control is a dynamically sized 1-dimensional array,
> - * V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag must be set when using it.
> - *
> - * @bit_size: size (in bits) of the current slice data
> - * @data_byte_offset: offset (in bytes) to the video data in the current slice data
> - * @num_entry_point_offsets: specifies the number of entry point offset syntax
> - * elements in the slice header.
> - * @nal_unit_type: specifies the coding type of the slice (B, P or I)
> - * @nuh_temporal_id_plus1: minus 1 specifies a temporal identifier for the NAL unit
> - * @slice_type: see V4L2_HEVC_SLICE_TYPE_{}
> - * @colour_plane_id: specifies the colour plane associated with the current slice
> - * @slice_pic_order_cnt: specifies the picture order count
> - * @num_ref_idx_l0_active_minus1: this value plus 1 specifies the maximum reference
> - * index for reference picture list 0 that may be
> - * used to decode the slice
> - * @num_ref_idx_l1_active_minus1: this value plus 1 specifies the maximum reference
> - * index for reference picture list 1 that may be
> - * used to decode the slice
> - * @collocated_ref_idx: specifies the reference index of the collocated picture used
> - * for temporal motion vector prediction
> - * @five_minus_max_num_merge_cand: specifies the maximum number of merging
> - * motion vector prediction candidates supported in
> - * the slice subtracted from 5
> - * @slice_qp_delta: specifies the initial value of QpY to be used for the coding
> - * blocks in the slice
> - * @slice_cb_qp_offset: specifies a difference to be added to the value of pps_cb_qp_offset
> - * @slice_cr_qp_offset: specifies a difference to be added to the value of pps_cr_qp_offset
> - * @slice_act_y_qp_offset: screen content extension parameters
> - * @slice_act_cb_qp_offset: screen content extension parameters
> - * @slice_act_cr_qp_offset: screen content extension parameters
> - * @slice_beta_offset_div2: specify the deblocking parameter offsets for beta divided by 2
> - * @slice_tc_offset_div2: specify the deblocking parameter offsets for tC divided by 2
> - * @pic_struct: indicates whether a picture should be displayed as a frame or as one or
> - * more fields
> - * @reserved0: padding field. Should be zeroed by applications.
> - * @slice_segment_addr: specifies the address of the first coding tree block in
> - * the slice segment
> - * @ref_idx_l0: the list of L0 reference elements as indices in the DPB
> - * @ref_idx_l1: the list of L1 reference elements as indices in the DPB
> - * @short_term_ref_pic_set_size: specifies the size of short-term reference
> - * pictures included in the SPS
> - * @long_term_ref_pic_set_size: specifies the size of long-term reference
> - * picture include in the SPS
> - * @pred_weight_table: the prediction weight coefficients for inter-picture
> - * prediction
> - * @reserved1: padding field. Should be zeroed by applications.
> - * @flags: see V4L2_HEVC_SLICE_PARAMS_FLAG_{}
> - */
> -struct v4l2_ctrl_hevc_slice_params {
> - __u32 bit_size;
> - __u32 data_byte_offset;
> - __u32 num_entry_point_offsets;
> - /* ISO/IEC 23008-2, ITU-T Rec. H.265: NAL unit header */
> - __u8 nal_unit_type;
> - __u8 nuh_temporal_id_plus1;
> -
> - /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
> - __u8 slice_type;
> - __u8 colour_plane_id;
> - __s32 slice_pic_order_cnt;
> - __u8 num_ref_idx_l0_active_minus1;
> - __u8 num_ref_idx_l1_active_minus1;
> - __u8 collocated_ref_idx;
> - __u8 five_minus_max_num_merge_cand;
> - __s8 slice_qp_delta;
> - __s8 slice_cb_qp_offset;
> - __s8 slice_cr_qp_offset;
> - __s8 slice_act_y_qp_offset;
> - __s8 slice_act_cb_qp_offset;
> - __s8 slice_act_cr_qp_offset;
> - __s8 slice_beta_offset_div2;
> - __s8 slice_tc_offset_div2;
> -
> - /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture timing SEI message */
> - __u8 pic_struct;
> -
> - __u8 reserved0[3];
> - /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
> - __u32 slice_segment_addr;
> - __u8 ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> - __u8 ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> - __u16 short_term_ref_pic_set_size;
> - __u16 long_term_ref_pic_set_size;
> -
> - /* ISO/IEC 23008-2, ITU-T Rec. H.265: Weighted prediction parameter */
> - struct v4l2_hevc_pred_weight_table pred_weight_table;
> -
> - __u8 reserved1[2];
> - __u64 flags;
> -};
> -
> -#define V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC 0x1
> -#define V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC 0x2
> -#define V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR 0x4
> -
> -/**
> - * struct v4l2_ctrl_hevc_decode_params - HEVC decode parameters
> - *
> - * @pic_order_cnt_val: picture order count
> - * @short_term_ref_pic_set_size: specifies the size of short-term reference
> - * pictures set included in the SPS of the first slice
> - * @long_term_ref_pic_set_size: specifies the size of long-term reference
> - * pictures set include in the SPS of the first slice
> - * @num_active_dpb_entries: the number of entries in dpb
> - * @num_poc_st_curr_before: the number of reference pictures in the short-term
> - * set that come before the current frame
> - * @num_poc_st_curr_after: the number of reference pictures in the short-term
> - * set that come after the current frame
> - * @num_poc_lt_curr: the number of reference pictures in the long-term set
> - * @poc_st_curr_before: provides the index of the short term before references
> - * in DPB array
> - * @poc_st_curr_after: provides the index of the short term after references
> - * in DPB array
> - * @poc_lt_curr: provides the index of the long term references in DPB array
> - * @reserved: padding field. Should be zeroed by applications.
> - * @dpb: the decoded picture buffer, for meta-data about reference frames
> - * @flags: see V4L2_HEVC_DECODE_PARAM_FLAG_{}
> - */
> -struct v4l2_ctrl_hevc_decode_params {
> - __s32 pic_order_cnt_val;
> - __u16 short_term_ref_pic_set_size;
> - __u16 long_term_ref_pic_set_size;
> - __u8 num_active_dpb_entries;
> - __u8 num_poc_st_curr_before;
> - __u8 num_poc_st_curr_after;
> - __u8 num_poc_lt_curr;
> - __u8 poc_st_curr_before[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> - __u8 poc_st_curr_after[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> - __u8 poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> - __u8 reserved[4];
> - struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> - __u64 flags;
> -};
> -
> -/**
> - * struct v4l2_ctrl_hevc_scaling_matrix - HEVC scaling lists parameters
> - *
> - * @scaling_list_4x4: scaling list is used for the scaling process for
> - * transform coefficients. The values on each scaling
> - * list are expected in raster scan order
> - * @scaling_list_8x8: scaling list is used for the scaling process for
> - * transform coefficients. The values on each scaling
> - * list are expected in raster scan order
> - * @scaling_list_16x16: scaling list is used for the scaling process for
> - * transform coefficients. The values on each scaling
> - * list are expected in raster scan order
> - * @scaling_list_32x32: scaling list is used for the scaling process for
> - * transform coefficients. The values on each scaling
> - * list are expected in raster scan order
> - * @scaling_list_dc_coef_16x16: scaling list is used for the scaling process
> - * for transform coefficients. The values on each
> - * scaling list are expected in raster scan order.
> - * @scaling_list_dc_coef_32x32: scaling list is used for the scaling process
> - * for transform coefficients. The values on each
> - * scaling list are expected in raster scan order.
> - */
> -struct v4l2_ctrl_hevc_scaling_matrix {
> - __u8 scaling_list_4x4[6][16];
> - __u8 scaling_list_8x8[6][64];
> - __u8 scaling_list_16x16[6][64];
> - __u8 scaling_list_32x32[2][64];
> - __u8 scaling_list_dc_coef_16x16[6];
> - __u8 scaling_list_dc_coef_32x32[2];
> -};
> -
> -#endif
> diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
> index f4105de8a8d2..00828a4f9404 100644
> --- a/include/media/v4l2-ctrls.h
> +++ b/include/media/v4l2-ctrls.h
> @@ -13,12 +13,6 @@
> #include <linux/videodev2.h>
> #include <media/media-request.h>
>
> -/*
> - * Include the stateless codec compound control definitions.
> - * This will move to the public headers once this API is fully stable.
> - */
> -#include <media/hevc-ctrls.h>
> -
> /* forward references */
> struct file;
> struct poll_table_struct;
> diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
> index dfff69ed88f7..5f46bf4a570c 100644
> --- a/include/uapi/linux/v4l2-controls.h
> +++ b/include/uapi/linux/v4l2-controls.h
> @@ -1997,6 +1997,465 @@ struct v4l2_ctrl_mpeg2_quantisation {
> __u8 chroma_non_intra_quantiser_matrix[64];
> };
>
> +#define V4L2_CID_STATELESS_HEVC_SPS (V4L2_CID_CODEC_STATELESS_BASE + 400)
> +#define V4L2_CID_STATELESS_HEVC_PPS (V4L2_CID_CODEC_STATELESS_BASE + 401)
> +#define V4L2_CID_STATELESS_HEVC_SLICE_PARAMS (V4L2_CID_CODEC_STATELESS_BASE + 402)
> +#define V4L2_CID_STATELESS_HEVC_SCALING_MATRIX (V4L2_CID_CODEC_STATELESS_BASE + 403)
> +#define V4L2_CID_STATELESS_HEVC_DECODE_PARAMS (V4L2_CID_CODEC_STATELESS_BASE + 404)
> +#define V4L2_CID_STATELESS_HEVC_DECODE_MODE (V4L2_CID_CODEC_STATELESS_BASE + 405)
> +#define V4L2_CID_STATELESS_HEVC_START_CODE (V4L2_CID_CODEC_STATELESS_BASE + 406)
> +#define V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS (V4L2_CID_CODEC_STATELESS_BASE + 407)
> +
> +enum v4l2_stateless_hevc_decode_mode {
> + V4L2_STATELESS_HEVC_DECODE_MODE_SLICE_BASED,
> + V4L2_STATELESS_HEVC_DECODE_MODE_FRAME_BASED,
> +};
> +
> +enum v4l2_stateless_hevc_start_code {
> + V4L2_STATELESS_HEVC_START_CODE_NONE,
> + V4L2_STATELESS_HEVC_START_CODE_ANNEX_B,
> +};
> +
> +#define V4L2_HEVC_SLICE_TYPE_B 0
> +#define V4L2_HEVC_SLICE_TYPE_P 1
> +#define V4L2_HEVC_SLICE_TYPE_I 2
> +
> +#define V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE (1ULL << 0)
> +#define V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED (1ULL << 1)
> +#define V4L2_HEVC_SPS_FLAG_AMP_ENABLED (1ULL << 2)
> +#define V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET (1ULL << 3)
> +#define V4L2_HEVC_SPS_FLAG_PCM_ENABLED (1ULL << 4)
> +#define V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED (1ULL << 5)
> +#define V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT (1ULL << 6)
> +#define V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED (1ULL << 7)
> +#define V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED (1ULL << 8)
> +
> +/**
> + * struct v4l2_ctrl_hevc_sps - ITU-T Rec. H.265: Sequence parameter set
> + *
> + * @video_parameter_set_id: specifies the value of the
> + * vps_video_parameter_set_id of the active VPS
> + * @seq_parameter_set_id: provides an identifier for the SPS for
> + * reference by other syntax elements
> + * @pic_width_in_luma_samples: specifies the width of each decoded picture
> + * in units of luma samples
> + * @pic_height_in_luma_samples: specifies the height of each decoded picture
> + * in units of luma samples
> + * @bit_depth_luma_minus8: this value plus 8specifies the bit depth of the
> + * samples of the luma array
> + * @bit_depth_chroma_minus8: this value plus 8 specifies the bit depth of the
> + * samples of the chroma arrays
> + * @log2_max_pic_order_cnt_lsb_minus4: this value plus 4 specifies the value of
> + * the variable MaxPicOrderCntLsb
> + * @sps_max_dec_pic_buffering_minus1: this value plus 1 specifies the maximum
> + * required size of the decoded picture
> + * buffer for the codec video sequence
> + * @sps_max_num_reorder_pics: indicates the maximum allowed number of pictures
> + * @sps_max_latency_increase_plus1: not equal to 0 is used to compute the
> + * value of SpsMaxLatencyPictures array
> + * @log2_min_luma_coding_block_size_minus3: plus 3 specifies the minimum
> + * luma coding block size
> + * @log2_diff_max_min_luma_coding_block_size: specifies the difference between
> + * the maximum and minimum luma
> + * coding block size
> + * @log2_min_luma_transform_block_size_minus2: plus 2 specifies the minimum luma
> + * transform block size
> + * @log2_diff_max_min_luma_transform_block_size: specifies the difference between
> + * the maximum and minimum luma
> + * transform block size
> + * @max_transform_hierarchy_depth_inter: specifies the maximum hierarchy
> + * depth for transform units of
> + * coding units coded in inter
> + * prediction mode
> + * @max_transform_hierarchy_depth_intra: specifies the maximum hierarchy
> + * depth for transform units of
> + * coding units coded in intra
> + * prediction mode
> + * @pcm_sample_bit_depth_luma_minus1: this value plus 1 specifies the number of
> + * bits used to represent each of PCM sample
> + * values of the luma component
> + * @pcm_sample_bit_depth_chroma_minus1: this value plus 1 specifies the number
> + * of bits used to represent each of PCM
> + * sample values of the chroma components
> + * @log2_min_pcm_luma_coding_block_size_minus3: this value plus 3 specifies the
> + * minimum size of coding blocks
> + * @log2_diff_max_min_pcm_luma_coding_block_size: specifies the difference between
> + * the maximum and minimum size of
> + * coding blocks
> + * @num_short_term_ref_pic_sets: specifies the number of st_ref_pic_set()
> + * syntax structures included in the SPS
> + * @num_long_term_ref_pics_sps: specifies the number of candidate long-term
> + * reference pictures that are specified in the SPS
> + * @chroma_format_idc: specifies the chroma sampling
> + * @sps_max_sub_layers_minus1: this value plus 1 specifies the maximum number
> + * of temporal sub-layers
> + * @reserved: padding field. Should be zeroed by applications.
> + * @flags: see V4L2_HEVC_SPS_FLAG_{}
> + */
> +struct v4l2_ctrl_hevc_sps {
> + __u8 video_parameter_set_id;
> + __u8 seq_parameter_set_id;
> + __u16 pic_width_in_luma_samples;
> + __u16 pic_height_in_luma_samples;
> + __u8 bit_depth_luma_minus8;
> + __u8 bit_depth_chroma_minus8;
> + __u8 log2_max_pic_order_cnt_lsb_minus4;
> + __u8 sps_max_dec_pic_buffering_minus1;
> + __u8 sps_max_num_reorder_pics;
> + __u8 sps_max_latency_increase_plus1;
> + __u8 log2_min_luma_coding_block_size_minus3;
> + __u8 log2_diff_max_min_luma_coding_block_size;
> + __u8 log2_min_luma_transform_block_size_minus2;
> + __u8 log2_diff_max_min_luma_transform_block_size;
> + __u8 max_transform_hierarchy_depth_inter;
> + __u8 max_transform_hierarchy_depth_intra;
> + __u8 pcm_sample_bit_depth_luma_minus1;
> + __u8 pcm_sample_bit_depth_chroma_minus1;
> + __u8 log2_min_pcm_luma_coding_block_size_minus3;
> + __u8 log2_diff_max_min_pcm_luma_coding_block_size;
> + __u8 num_short_term_ref_pic_sets;
> + __u8 num_long_term_ref_pics_sps;
> + __u8 chroma_format_idc;
> + __u8 sps_max_sub_layers_minus1;
> +
> + __u8 reserved[6];
> + __u64 flags;
> +};
> +
> +#define V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED (1ULL << 0)
> +#define V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT (1ULL << 1)
> +#define V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED (1ULL << 2)
> +#define V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT (1ULL << 3)
> +#define V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED (1ULL << 4)
> +#define V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED (1ULL << 5)
> +#define V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED (1ULL << 6)
> +#define V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT (1ULL << 7)
> +#define V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED (1ULL << 8)
> +#define V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED (1ULL << 9)
> +#define V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED (1ULL << 10)
> +#define V4L2_HEVC_PPS_FLAG_TILES_ENABLED (1ULL << 11)
> +#define V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED (1ULL << 12)
> +#define V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED (1ULL << 13)
> +#define V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED (1ULL << 14)
> +#define V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED (1ULL << 15)
> +#define V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER (1ULL << 16)
> +#define V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT (1ULL << 17)
> +#define V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT (1ULL << 18)
> +#define V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT (1ULL << 19)
> +#define V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING (1ULL << 20)
> +
> +/**
> + * struct v4l2_ctrl_hevc_pps - ITU-T Rec. H.265: Picture parameter set
> + *
> + * @pic_parameter_set_id: identifies the PPS for reference by other
> + * syntax elements
> + * @num_extra_slice_header_bits: specifies the number of extra slice header
> + * bits that are present in the slice header RBSP
> + * for coded pictures referring to the PPS.
> + * @num_ref_idx_l0_default_active_minus1: this value plus 1 specifies the
> + * inferred value of num_ref_idx_l0_active_minus1
> + * @num_ref_idx_l1_default_active_minus1: this value plus 1 specifies the
> + * inferred value of num_ref_idx_l1_active_minus1
> + * @init_qp_minus26: this value plus 26 specifies the initial value of SliceQp Y for
> + * each slice referring to the PPS
> + * @diff_cu_qp_delta_depth: specifies the difference between the luma coding
> + * tree block size and the minimum luma coding block
> + * size of coding units that convey cu_qp_delta_abs
> + * and cu_qp_delta_sign_flag
> + * @pps_cb_qp_offset: specify the offsets to the luma quantization parameter Cb
> + * @pps_cr_qp_offset: specify the offsets to the luma quantization parameter Cr
> + * @num_tile_columns_minus1: this value plus 1 specifies the number of tile columns
> + * partitioning the picture
> + * @num_tile_rows_minus1: this value plus 1 specifies the number of tile rows partitioning
> + * the picture
> + * @column_width_minus1: this value plus 1 specifies the width of the each tile column in
> + * units of coding tree blocks
> + * @row_height_minus1: this value plus 1 specifies the height of the each tile row in
> + * units of coding tree blocks
> + * @pps_beta_offset_div2: specify the default deblocking parameter offsets for
> + * beta divided by 2
> + * @pps_tc_offset_div2: specify the default deblocking parameter offsets for tC
> + * divided by 2
> + * @log2_parallel_merge_level_minus2: this value plus 2 specifies the value of
> + * the variable Log2ParMrgLevel
> + * @reserved: padding field. Should be zeroed by applications.
> + * @flags: see V4L2_HEVC_PPS_FLAG_{}
> + */
> +struct v4l2_ctrl_hevc_pps {
> + __u8 pic_parameter_set_id;
> + __u8 num_extra_slice_header_bits;
> + __u8 num_ref_idx_l0_default_active_minus1;
> + __u8 num_ref_idx_l1_default_active_minus1;
> + __s8 init_qp_minus26;
> + __u8 diff_cu_qp_delta_depth;
> + __s8 pps_cb_qp_offset;
> + __s8 pps_cr_qp_offset;
> + __u8 num_tile_columns_minus1;
> + __u8 num_tile_rows_minus1;
> + __u8 column_width_minus1[20];
> + __u8 row_height_minus1[22];
> + __s8 pps_beta_offset_div2;
> + __s8 pps_tc_offset_div2;
> + __u8 log2_parallel_merge_level_minus2;
> + __u8 reserved;
> + __u64 flags;
> +};
> +
> +#define V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE 0x01
> +
> +#define V4L2_HEVC_SEI_PIC_STRUCT_FRAME 0
> +#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_FIELD 1
> +#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_FIELD 2
> +#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM 3
> +#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP 4
> +#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM_TOP 5
> +#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM 6
> +#define V4L2_HEVC_SEI_PIC_STRUCT_FRAME_DOUBLING 7
> +#define V4L2_HEVC_SEI_PIC_STRUCT_FRAME_TRIPLING 8
> +#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_PREVIOUS_BOTTOM 9
> +#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_PREVIOUS_TOP 10
> +#define V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_NEXT_BOTTOM 11
> +#define V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_NEXT_TOP 12
> +
> +#define V4L2_HEVC_DPB_ENTRIES_NUM_MAX 16
> +
> +/**
> + * struct v4l2_hevc_dpb_entry - HEVC decoded picture buffer entry
> + *
> + * @timestamp: timestamp of the V4L2 capture buffer to use as reference.
> + * @flags: long term flag for the reference frame
> + * @field_pic: whether the reference is a field picture or a frame.
> + * @reserved: padding field. Should be zeroed by applications.
> + * @pic_order_cnt_val: the picture order count of the current picture.
> + */
> +struct v4l2_hevc_dpb_entry {
> + __u64 timestamp;
> + __u8 flags;
> + __u8 field_pic;
> + __u16 reserved;
> + __s32 pic_order_cnt_val;
> +};
> +
> +/**
> + * struct v4l2_hevc_pred_weight_table - HEVC weighted prediction parameters
> + *
> + * @delta_luma_weight_l0: the difference of the weighting factor applied
> + * to the luma prediction value for list 0
> + * @luma_offset_l0: the additive offset applied to the luma prediction value
> + * for list 0
> + * @delta_chroma_weight_l0: the difference of the weighting factor applied
> + * to the chroma prediction values for list 0
> + * @chroma_offset_l0: the difference of the additive offset applied to
> + * the chroma prediction values for list 0
> + * @delta_luma_weight_l1: the difference of the weighting factor applied
> + * to the luma prediction value for list 1
> + * @luma_offset_l1: the additive offset applied to the luma prediction value
> + * for list 1
> + * @delta_chroma_weight_l1: the difference of the weighting factor applied
> + * to the chroma prediction values for list 1
> + * @chroma_offset_l1: the difference of the additive offset applied to
> + * the chroma prediction values for list 1
> + * @luma_log2_weight_denom: the base 2 logarithm of the denominator for
> + * all luma weighting factors
> + * @delta_chroma_log2_weight_denom: the difference of the base 2 logarithm
> + * of the denominator for all chroma
> + * weighting factors
> + */
> +struct v4l2_hevc_pred_weight_table {
> + __s8 delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> + __s8 luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> + __s8 delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
> + __s8 chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
> +
> + __s8 delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> + __s8 luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> + __s8 delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
> + __s8 chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
> +
> + __u8 luma_log2_weight_denom;
> + __s8 delta_chroma_log2_weight_denom;
> +};
> +
> +#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA (1ULL << 0)
> +#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA (1ULL << 1)
> +#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED (1ULL << 2)
> +#define V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO (1ULL << 3)
> +#define V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT (1ULL << 4)
> +#define V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0 (1ULL << 5)
> +#define V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV (1ULL << 6)
> +#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED (1ULL << 7)
> +#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED (1ULL << 8)
> +#define V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT (1ULL << 9)
> +
> +/**
> + * struct v4l2_ctrl_hevc_slice_params - HEVC slice parameters
> + *
> + * This control is a dynamically sized 1-dimensional array,
> + * V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag must be set when using it.
> + *
> + * @bit_size: size (in bits) of the current slice data
> + * @data_byte_offset: offset (in bytes) to the video data in the current slice data
> + * @num_entry_point_offsets: specifies the number of entry point offset syntax
> + * elements in the slice header.
> + * @nal_unit_type: specifies the coding type of the slice (B, P or I)
> + * @nuh_temporal_id_plus1: minus 1 specifies a temporal identifier for the NAL unit
> + * @slice_type: see V4L2_HEVC_SLICE_TYPE_{}
> + * @colour_plane_id: specifies the colour plane associated with the current slice
> + * @slice_pic_order_cnt: specifies the picture order count
> + * @num_ref_idx_l0_active_minus1: this value plus 1 specifies the maximum
> + * reference index for reference picture list 0
> + * that may be used to decode the slice
> + * @num_ref_idx_l1_active_minus1: this value plus 1 specifies the maximum
> + * reference index for reference picture list 1
> + * that may be used to decode the slice
> + * @collocated_ref_idx: specifies the reference index of the collocated picture used
> + * for temporal motion vector prediction
> + * @five_minus_max_num_merge_cand: specifies the maximum number of merging
> + * motion vector prediction candidates supported in
> + * the slice subtracted from 5
> + * @slice_qp_delta: specifies the initial value of QpY to be used for the coding
> + * blocks in the slice
> + * @slice_cb_qp_offset: specifies a difference to be added to the value of pps_cb_qp_offset
> + * @slice_cr_qp_offset: specifies a difference to be added to the value of pps_cr_qp_offset
> + * @slice_act_y_qp_offset: screen content extension parameters
> + * @slice_act_cb_qp_offset: screen content extension parameters
> + * @slice_act_cr_qp_offset: screen content extension parameters
> + * @slice_beta_offset_div2: specify the deblocking parameter offsets for beta divided by 2
> + * @slice_tc_offset_div2: specify the deblocking parameter offsets for tC divided by 2
> + * @pic_struct: indicates whether a picture should be displayed as a frame or as one or
> + * more fields
> + * @reserved0: padding field. Should be zeroed by applications.
> + * @slice_segment_addr: specifies the address of the first coding tree block in
> + * the slice segment
> + * @ref_idx_l0: the list of L0 reference elements as indices in the DPB
> + * @ref_idx_l1: the list of L1 reference elements as indices in the DPB
> + * @short_term_ref_pic_set_size: specifies the size of short-term reference
> + * pictures set included in the SPS
> + * @long_term_ref_pic_set_size: specifies the size of long-term reference
> + * pictures set include in the SPS
> + * @pred_weight_table: the prediction weight coefficients for inter-picture
> + * prediction
> + * @reserved1: padding field. Should be zeroed by applications.
> + * @flags: see V4L2_HEVC_SLICE_PARAMS_FLAG_{}
> + */
> +struct v4l2_ctrl_hevc_slice_params {
> + __u32 bit_size;
> + __u32 data_byte_offset;
> + __u32 num_entry_point_offsets;
> +
> + /* ISO/IEC 23008-2, ITU-T Rec. H.265: NAL unit header */
> + __u8 nal_unit_type;
> + __u8 nuh_temporal_id_plus1;
> +
> + /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
> + __u8 slice_type;
> + __u8 colour_plane_id;
> + __s32 slice_pic_order_cnt;
> + __u8 num_ref_idx_l0_active_minus1;
> + __u8 num_ref_idx_l1_active_minus1;
> + __u8 collocated_ref_idx;
> + __u8 five_minus_max_num_merge_cand;
> + __s8 slice_qp_delta;
> + __s8 slice_cb_qp_offset;
> + __s8 slice_cr_qp_offset;
> + __s8 slice_act_y_qp_offset;
> + __s8 slice_act_cb_qp_offset;
> + __s8 slice_act_cr_qp_offset;
> + __s8 slice_beta_offset_div2;
> + __s8 slice_tc_offset_div2;
> +
> + /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture timing SEI message */
> + __u8 pic_struct;
> +
> + __u8 reserved0[3];
> + /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
> + __u32 slice_segment_addr;
> + __u8 ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> + __u8 ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> + __u16 short_term_ref_pic_set_size;
> + __u16 long_term_ref_pic_set_size;
> +
> + /* ISO/IEC 23008-2, ITU-T Rec. H.265: Weighted prediction parameter */
> + struct v4l2_hevc_pred_weight_table pred_weight_table;
> +
> + __u8 reserved1[2];
> + __u64 flags;
> +};
> +
> +#define V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC 0x1
> +#define V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC 0x2
> +#define V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR 0x4
> +
> +/**
> + * struct v4l2_ctrl_hevc_decode_params - HEVC decode parameters
> + *
> + * @pic_order_cnt_val: picture order count
> + * @short_term_ref_pic_set_size: specifies the size of short-term reference
> + * pictures set included in the SPS of the first slice
> + * @long_term_ref_pic_set_size: specifies the size of long-term reference
> + * pictures set include in the SPS of the first slice
> + * @num_active_dpb_entries: the number of entries in dpb
> + * @num_poc_st_curr_before: the number of reference pictures in the short-term
> + * set that come before the current frame
> + * @num_poc_st_curr_after: the number of reference pictures in the short-term
> + * set that come after the current frame
> + * @num_poc_lt_curr: the number of reference pictures in the long-term set
> + * @poc_st_curr_before: provides the index of the short term before references
> + * in DPB array
> + * @poc_st_curr_after: provides the index of the short term after references
> + * in DPB array
> + * @poc_lt_curr: provides the index of the long term references in DPB array
> + * @reserved: padding field. Should be zeroed by applications.
> + * @dpb: the decoded picture buffer, for meta-data about reference frames
> + * @flags: see V4L2_HEVC_DECODE_PARAM_FLAG_{}
> + */
> +struct v4l2_ctrl_hevc_decode_params {
> + __s32 pic_order_cnt_val;
> + __u16 short_term_ref_pic_set_size;
> + __u16 long_term_ref_pic_set_size;
> + __u8 num_active_dpb_entries;
> + __u8 num_poc_st_curr_before;
> + __u8 num_poc_st_curr_after;
> + __u8 num_poc_lt_curr;
> + __u8 poc_st_curr_before[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> + __u8 poc_st_curr_after[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> + __u8 poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> + __u8 reserved[4];
> + struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
> + __u64 flags;
> +};
> +
> +/**
> + * struct v4l2_ctrl_hevc_scaling_matrix - HEVC scaling lists parameters
> + *
> + * @scaling_list_4x4: scaling list is used for the scaling process for
> + * transform coefficients. The values on each scaling
> + * list are expected in raster scan order
> + * @scaling_list_8x8: scaling list is used for the scaling process for
> + * transform coefficients. The values on each scaling
> + * list are expected in raster scan order
> + * @scaling_list_16x16: scaling list is used for the scaling process for
> + * transform coefficients. The values on each scaling
> + * list are expected in raster scan order
> + * @scaling_list_32x32: scaling list is used for the scaling process for
> + * transform coefficients. The values on each scaling
> + * list are expected in raster scan order
> + * @scaling_list_dc_coef_16x16: scaling list is used for the scaling process
> + * for transform coefficients. The values on each
> + * scaling list are expected in raster scan order.
> + * @scaling_list_dc_coef_32x32: scaling list is used for the scaling process
> + * for transform coefficients. The values on each
> + * scaling list are expected in raster scan order.
> + */
> +struct v4l2_ctrl_hevc_scaling_matrix {
> + __u8 scaling_list_4x4[6][16];
> + __u8 scaling_list_8x8[6][64];
> + __u8 scaling_list_16x16[6][64];
> + __u8 scaling_list_32x32[2][64];
> + __u8 scaling_list_dc_coef_16x16[6];
> + __u8 scaling_list_dc_coef_32x32[2];
> +};
> +
> #define V4L2_CID_COLORIMETRY_CLASS_BASE (V4L2_CTRL_CLASS_COLORIMETRY | 0x900)
> #define V4L2_CID_COLORIMETRY_CLASS (V4L2_CTRL_CLASS_COLORIMETRY | 1)
>
> diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
> index e0d19a6b5bc7..5a73b92ffe4d 100644
> --- a/include/uapi/linux/videodev2.h
> +++ b/include/uapi/linux/videodev2.h
> @@ -1769,6 +1769,11 @@ struct v4l2_ext_control {
> struct v4l2_ctrl_mpeg2_quantisation __user *p_mpeg2_quantisation;
> struct v4l2_ctrl_vp9_compressed_hdr __user *p_vp9_compressed_hdr_probs;
> struct v4l2_ctrl_vp9_frame __user *p_vp9_frame;
> + struct v4l2_ctrl_hevc_sps __user *p_hevc_sps;
> + struct v4l2_ctrl_hevc_pps __user *p_hevc_pps;
> + struct v4l2_ctrl_hevc_slice_params __user *p_hevc_slice_params;
> + struct v4l2_ctrl_hevc_scaling_matrix __user *p_hevc_scaling_matrix;
> + struct v4l2_ctrl_hevc_decode_params __user *p_hevc_decode_params;
> void __user *ptr;
> };
> } __attribute__ ((packed));
> --
> 2.32.0
>

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