media: v4l: Add definitions for HEVC stateless decoding

This introduces the required definitions for HEVC decoding support with
stateless VPUs. The controls associated to the HEVC slice format provide
the required meta-data for decoding slices extracted from the bitstream.

They are not exported to the public V4L2 API since reworking this API
will likely be needed for covering various use-cases and new hardware.

Multi-slice decoding is exposed as a valid decoding mode to match current
H.264 support but it is not yet implemented.

The interface comes with the following limitations:
* No custom quantization matrices (scaling lists);
* Support for a single temporal layer only;
* No slice entry point offsets support;
* No conformance window support;
* No VUI parameters support;
* No support for SPS extensions: range, multilayer, 3d, scc, 4 bits;
* No support for PPS extensions: range, multilayer, 3d, scc, 4 bits.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
[hverkuil-cisco@xs4all.nl: use 1ULL in flags defines in hevc-ctrls.h]
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

3 files changed, 577 insertions, 3 deletions

diff --git a/Documentation/media/uapi/v4l/biblio.rst b/Documentation/media/uapi/v4l/biblio.rst
index ad2ff258afa8..8095f57d3d75 100644
--- a/Documentation/media/uapi/v4l/biblio.rst
+++ b/Documentation/media/uapi/v4l/biblio.rst
@@ -131,6 +131,15 @@ ITU-T Rec. H.264 Specification (04/2017 Edition)
 
 :author:    International Telecommunication Union (http://www.itu.ch)
 
+.. _hevc:
+
+ITU H.265/HEVC
+==============
+
+:title:     ITU-T Rec. H.265 | ISO/IEC 23008-2 "High Efficiency Video Coding"
+
+:author:    International Telecommunication Union (http://www.itu.ch), International Organisation for Standardisation (http://www.iso.ch)
+
 .. _jfif:
 
 JFIF
diff --git a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
index 6bb901de0939..a1209f68c5e8 100644
--- a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
+++ b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
@@ -1985,9 +1985,9 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
       - ``reference_ts``
       - 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.
+        ``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.
     * - __u16
       - ``frame_num``
       -
@@ -3695,3 +3695,550 @@ 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_MPEG_VIDEO_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
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_hevc_sps
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - __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``
+      -
+    * - __u64
+      - ``flags``
+      - See :ref:`Sequence Parameter Set Flags <hevc_sps_flags>`
+
+.. _hevc_sps_flags:
+
+``Sequence Parameter Set Flags``
+
+.. 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
+      -
+
+``V4L2_CID_MPEG_VIDEO_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
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_hevc_pps
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - __u8
+      - ``num_extra_slice_header_bits``
+      -
+    * - __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
+      - ``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``
+
+.. cssclass:: longtable
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT``
+      - 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_CID_MPEG_VIDEO_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.
+
+.. c:type:: v4l2_ctrl_hevc_slice_params
+
+.. 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_bit_offset``
+      - Offset (in bits) to the video data in the current slice data.
+    * - __u8
+      - ``nal_unit_type``
+      -
+    * - __u8
+      - ``nuh_temporal_id_plus1``
+      -
+    * - __u8
+      - ``slice_type``
+      -
+	(V4L2_HEVC_SLICE_TYPE_I, V4L2_HEVC_SLICE_TYPE_P or
+	V4L2_HEVC_SLICE_TYPE_B).
+    * - __u8
+      - ``colour_plane_id``
+      -
+    * - __u16
+      - ``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``
+      -
+    * - __u8
+      - ``pic_struct``
+      -
+    * - __u8
+      - ``num_active_dpb_entries``
+      - The number of entries in ``dpb``.
+    * - __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.
+    * - __u8
+      - ``num_rps_poc_st_curr_before``
+      - The number of reference pictures in the short-term set that come before
+        the current frame.
+    * - __u8
+      - ``num_rps_poc_st_curr_after``
+      - The number of reference pictures in the short-term set that come after
+        the current frame.
+    * - __u8
+      - ``num_rps_poc_lt_curr``
+      - The number of reference pictures in the long-term set.
+    * - __u8
+      - ``padding[7]``
+      - Applications and drivers must set this to zero.
+    * - struct :c:type:`v4l2_hevc_dpb_entry`
+      - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+      - The decoded picture buffer, for meta-data about reference frames.
+    * - 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>`
+
+.. _hevc_slice_params_flags:
+
+``Slice Parameters Flags``
+
+.. cssclass:: longtable
+
+.. 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
+      -
+
+.. c:type:: v4l2_hevc_dpb_entry
+
+.. cssclass:: longtable
+
+.. 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
+      - ``rps``
+      - The reference set for the reference frame
+        (V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_BEFORE,
+        V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_AFTER or
+        V4L2_HEVC_DPB_ENTRY_RPS_LT_CURR)
+    * - __u8
+      - ``field_pic``
+      - Whether the reference is a field picture or a frame.
+    * - __u16
+      - ``pic_order_cnt[2]``
+      - The picture order count of the reference. Only the first element of the
+        array is used for frame pictures, while the first element identifies the
+        top field and the second the bottom field in field-coded pictures.
+    * - __u8
+      - ``padding[2]``
+      - Applications and drivers must set this to zero.
+
+.. c:type:: v4l2_hevc_pred_weight_table
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_hevc_pred_weight_table
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - __u8
+      - ``luma_log2_weight_denom``
+      -
+    * - __s8
+      - ``delta_chroma_log2_weight_denom``
+      -
+    * - __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
+      - ``padding[6]``
+      - Applications and drivers must set this to zero.
+
+``V4L2_CID_MPEG_VIDEO_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_mpeg_video_hevc_decode_mode
+
+.. cssclass:: longtable
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_MPEG_VIDEO_HEVC_DECODE_MODE_SLICE_BASED``
+      - 0
+      - Decoding is done at the slice granularity.
+        The OUTPUT buffer must contain a single slice.
+    * - ``V4L2_MPEG_VIDEO_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.
+
+``V4L2_CID_MPEG_VIDEO_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_mpeg_video_hevc_start_code
+
+.. cssclass:: longtable
+
+.. flat-table::
+    :header-rows:  0
+    :stub-columns: 0
+    :widths:       1 1 2
+
+    * - ``V4L2_MPEG_VIDEO_HEVC_START_CODE_NONE``
+      - 0
+      - Selecting this value specifies that HEVC slices are passed
+        to the driver without any start code.
+    * - ``V4L2_MPEG_VIDEO_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.
diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
index 33aff21b7d11..6690928e657b 100644
--- a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
+++ b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
@@ -479,6 +479,24 @@ See also the examples in :ref:`control`.
       - n/a
       - A struct :c:type:`v4l2_ctrl_h264_decode_params`, containing H264
 	decode parameters for stateless video decoders.
+    * - ``V4L2_CTRL_TYPE_HEVC_SPS``
+      - n/a
+      - n/a
+      - n/a
+      - A struct :c:type:`v4l2_ctrl_hevc_sps`, containing HEVC Sequence
+	Parameter Set for stateless video decoders.
+    * - ``V4L2_CTRL_TYPE_HEVC_PPS``
+      - n/a
+      - n/a
+      - n/a
+      - A struct :c:type:`v4l2_ctrl_hevc_pps`, containing HEVC Picture
+	Parameter Set for stateless video decoders.
+    * - ``V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS``
+      - n/a
+      - n/a
+      - n/a
+      - A struct :c:type:`v4l2_ctrl_hevc_slice_params`, containing HEVC
+	slice parameters for stateless video decoders.
 
 .. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|