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media: uapi: move HEVC stateless controls out of staging

Browse Source 
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@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Acked-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Tested-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Benjamin Gaignard 2022-07-08 17:21:56 +01:00 committed by Mauro Carvalho Chehab
parent e7060d9a78
commit ca24fef0f2
8 changed files with 1387 additions and 1387 deletions
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902
Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
View File

@ -2048,3 +2048,905 @@ 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``
- Specifies the offsets to the luma quantization parameter Cb.
* - __s8
- ``pps_cr_qp_offset``
- Specifies 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``
- Specifies the default deblocking parameter offsets for beta divided by 2.
* - __s8
- ``pps_tc_offset_div2``
- Specifies 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.
When the driver supports it, the ``V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS``
must be set.
* - __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``
- Specifies the deblocking parameter offsets for beta divided by 2.
* - __s8
- ``slice_tc_offset_div2``
- Specifies 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.
When multiple slices are submitted in a request, the length of
this array must be the sum of num_entry_point_offsets of all the
slices in the request.
``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
-

906
Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
View File

@ -2658,909 +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``
- Specifies the offsets to the luma quantization parameter Cb.
* - __s8
- ``pps_cr_qp_offset``
- Specifies 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``
- Specifies the default deblocking parameter offsets for beta divided by 2.
* - __s8
- ``pps_tc_offset_div2``
- Specifies 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.
When the driver supports it, the ``V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS``
must be set.
* - __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``
- Specifies the deblocking parameter offsets for beta divided by 2.
* - __s8
- ``slice_tc_offset_div2``
- Specifies 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.
When multiple slices are submitted in a request, the length of
this array must be the sum of num_entry_point_offsets of all the
slices in the request.
``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
-

2
Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
View File

@ -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:

20
Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
View File

@ -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

474
include/media/hevc-ctrls.h
View File

@ -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

6
include/media/v4l2-ctrls.h
View File

@ -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;

459
include/uapi/linux/v4l2-controls.h
View File

@ -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)

5
include/uapi/linux/videodev2.h
View File

@ -1793,6 +1793,11 @@ 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));