[PATCH v6 3/5] media: v4l: Add definitions for the HEVC slice controls
From: Paul Kocialkowski
Date: Fri Jun 14 2019 - 10:44:22 EST
This introduces the required definitions for HEVC decoding support with
stateless VPUs. The controls associated to the HEVC slice format provide
the required meta-data for decoding slices extracted from the bitstream.
They are not exported to the public V4L2 API since reworking this API
will be needed for covering various use-cases and new hardware.
The interface comes with the following limitations:
* No custom quantization matrices (scaling lists);
* Support for a single temporal layer only;
* No slice entry point offsets support;
* No conformance window support;
* No VUI parameters support;
* No support for SPS extensions: range, multilayer, 3d, scc, 4 bits;
* No support for PPS extensions: range, multilayer, 3d, scc, 4 bits.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
---
Documentation/media/uapi/v4l/biblio.rst | 9 +
.../media/uapi/v4l/ext-ctrls-codec.rst | 474 +++++++++++++++++-
.../media/uapi/v4l/vidioc-queryctrl.rst | 18 +
.../media/videodev2.h.rst.exceptions | 3 +
drivers/media/v4l2-core/v4l2-ctrls.c | 103 ++++
drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
include/media/hevc-ctrls.h | 197 ++++++++
include/media/v4l2-ctrls.h | 7 +
8 files changed, 809 insertions(+), 3 deletions(-)
create mode 100644 include/media/hevc-ctrls.h
diff --git a/Documentation/media/uapi/v4l/biblio.rst b/Documentation/media/uapi/v4l/biblio.rst
index 8f4eb8823d82..e38ef5ee4209 100644
--- a/Documentation/media/uapi/v4l/biblio.rst
+++ b/Documentation/media/uapi/v4l/biblio.rst
@@ -131,6 +131,15 @@ ITU-T Rec. H.264 Specification (04/2017 Edition)
:author: International Telecommunication Union (http://www.itu.ch)
+.. _hevc:
+
+ITU H.265/HEVC
+==============
+
+:title: ITU-T Rec. H.265 | ISO/IEC 23008-2 "High Efficiency Video Coding"
+
+:author: International Telecommunication Union (http://www.itu.ch), International Organisation for Standardisation (http://www.iso.ch)
+
.. _jfif:
JFIF
diff --git a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
index d6ea2ffd65c5..610f9da3d7ba 100644
--- a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
+++ b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst
@@ -1981,9 +1981,9 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
- ``reference_ts``
- Timestamp of the V4L2 capture buffer to use as reference, used
with B-coded and P-coded frames. The timestamp refers to the
- ``timestamp`` field in struct :c:type:`v4l2_buffer`. Use the
- :c:func:`v4l2_timeval_to_ns()` function to convert the struct
- :c:type:`timeval` in struct :c:type:`v4l2_buffer` to a __u64.
+ ``timestamp`` field in struct :c:type:`v4l2_buffer`. Use the
+ :c:func:`v4l2_timeval_to_ns()` function to convert the struct
+ :c:type:`timeval` in struct :c:type:`v4l2_buffer` to a __u64.
* - __u16
- ``frame_num``
-
@@ -3291,3 +3291,471 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
Indicates whether to generate SPS and PPS at every IDR. Setting it to 0
disables generating SPS and PPS at every IDR. Setting it to one enables
generating SPS and PPS at every IDR.
+
+.. _v4l2-mpeg-hevc:
+
+``V4L2_CID_MPEG_VIDEO_HEVC_SPS (struct)``
+ Specifies the Sequence Parameter Set fields (as extracted from the
+ bitstream) for the associated HEVC slice data.
+ These bitstream parameters are defined according to :ref:`hevc`.
+ They are described in section 7.4.3.2 "Sequence parameter set RBSP
+ semantics" of the specification.
+
+.. c:type:: v4l2_ctrl_hevc_sps
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_hevc_sps
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u8
+ - ``chroma_format_idc``
+ -
+ * - __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``
+ -
+ * - __u64
+ - ``flags``
+ - See :ref:`Sequence Parameter Set Flags <hevc_sps_flags>`
+
+.. _hevc_sps_flags:
+
+``Sequence Parameter Set Flags``
+
+.. cssclass:: longtable
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE``
+ - 0x00000001
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED``
+ - 0x00000002
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_AMP_ENABLED``
+ - 0x00000004
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET``
+ - 0x00000008
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_PCM_ENABLED``
+ - 0x00000010
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED``
+ - 0x00000020
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT``
+ - 0x00000040
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED``
+ - 0x00000080
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED``
+ - 0x00000100
+ -
+
+``V4L2_CID_MPEG_VIDEO_HEVC_PPS (struct)``
+ Specifies the Picture Parameter Set fields (as extracted from the
+ bitstream) for the associated HEVC slice data.
+ These bitstream parameters are defined according to :ref:`hevc`.
+ They are described in section 7.4.3.3 "Picture parameter set RBSP
+ semantics" of the specification.
+
+.. c:type:: v4l2_ctrl_hevc_pps
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_hevc_pps
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u8
+ - ``num_extra_slice_header_bits``
+ -
+ * - __s8
+ - ``init_qp_minus26``
+ -
+ * - __u8
+ - ``diff_cu_qp_delta_depth``
+ -
+ * - __s8
+ - ``pps_cb_qp_offset``
+ -
+ * - __s8
+ - ``pps_cr_qp_offset``
+ -
+ * - __u8
+ - ``num_tile_columns_minus1``
+ -
+ * - __u8
+ - ``num_tile_rows_minus1``
+ -
+ * - __u8
+ - ``column_width_minus1[20]``
+ -
+ * - __u8
+ - ``row_height_minus1[22]``
+ -
+ * - __s8
+ - ``pps_beta_offset_div2``
+ -
+ * - __s8
+ - ``pps_tc_offset_div2``
+ -
+ * - __u8
+ - ``log2_parallel_merge_level_minus2``
+ -
+ * - __u64
+ - ``flags``
+ - See :ref:`Picture Parameter Set Flags <hevc_pps_flags>`
+
+.. _hevc_pps_flags:
+
+``Picture Parameter Set Flags``
+
+.. cssclass:: longtable
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT``
+ - 0x00000001
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT``
+ - 0x00000002
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED``
+ - 0x00000004
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT``
+ - 0x00000008
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED``
+ - 0x00000010
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED``
+ - 0x00000020
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED``
+ - 0x00000040
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT``
+ - 0x00000080
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED``
+ - 0x00000100
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED``
+ - 0x00000200
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED``
+ - 0x00000400
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_TILES_ENABLED``
+ - 0x00000800
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED``
+ - 0x00001000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED``
+ - 0x00002000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED``
+ - 0x00004000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED``
+ - 0x00008000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER``
+ - 0x00010000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT``
+ - 0x00020000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT``
+ - 0x00040000
+ -
+
+``V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS (struct)``
+ Specifies various slice-specific parameters, especially from the NAL unit
+ header, general slice segment header and weighted prediction parameter
+ parts of the bitstream.
+ These bitstream parameters are defined according to :ref:`hevc`.
+ They are described in section 7.4.7 "General slice segment header
+ semantics" of the specification.
+
+.. c:type:: v4l2_ctrl_hevc_slice_params
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_hevc_slice_params
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u32
+ - ``bit_size``
+ - Size (in bits) of the current slice data.
+ * - __u32
+ - ``data_bit_offset``
+ - Offset (in bits) to the video data in the current slice data.
+ * - __u8
+ - ``nal_unit_type``
+ -
+ * - __u8
+ - ``nuh_temporal_id_plus1``
+ -
+ * - __u8
+ - ``slice_type``
+ -
+ (V4L2_HEVC_SLICE_TYPE_I, V4L2_HEVC_SLICE_TYPE_P or
+ V4L2_HEVC_SLICE_TYPE_B).
+ * - __u8
+ - ``colour_plane_id``
+ -
+ * - __u16
+ - ``slice_pic_order_cnt``
+ -
+ * - __u8
+ - ``num_ref_idx_l0_active_minus1``
+ -
+ * - __u8
+ - ``num_ref_idx_l1_active_minus1``
+ -
+ * - __u8
+ - ``collocated_ref_idx``
+ -
+ * - __u8
+ - ``five_minus_max_num_merge_cand``
+ -
+ * - __s8
+ - ``slice_qp_delta``
+ -
+ * - __s8
+ - ``slice_cb_qp_offset``
+ -
+ * - __s8
+ - ``slice_cr_qp_offset``
+ -
+ * - __s8
+ - ``slice_act_y_qp_offset``
+ -
+ * - __s8
+ - ``slice_act_cb_qp_offset``
+ -
+ * - __s8
+ - ``slice_act_cr_qp_offset``
+ -
+ * - __s8
+ - ``slice_beta_offset_div2``
+ -
+ * - __s8
+ - ``slice_tc_offset_div2``
+ -
+ * - __u8
+ - ``pic_struct``
+ -
+ * - struct :c:type:`v4l2_hevc_dpb_entry`
+ - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The decoded picture buffer, for meta-data about reference frames.
+ * - __u8
+ - ``num_active_dpb_entries``
+ - The number of entries in ``dpb``.
+ * - __u8
+ - ``ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The list of L0 reference elements as indices in the DPB.
+ * - __u8
+ - ``ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The list of L1 reference elements as indices in the DPB.
+ * - __u8
+ - ``num_rps_poc_st_curr_before``
+ - The number of reference pictures in the short-term set that come before
+ the current frame.
+ * - __u8
+ - ``num_rps_poc_st_curr_after``
+ - The number of reference pictures in the short-term set that come after
+ the current frame.
+ * - __u8
+ - ``num_rps_poc_lt_curr``
+ - The number of reference pictures in the long-term set.
+ * - struct :c:type:`v4l2_hevc_pred_weight_table`
+ - ``pred_weight_table``
+ - The prediction weight coefficients for inter-picture prediction.
+ * - __u64
+ - ``flags``
+ - See :ref:`Slice Parameters Flags <hevc_slice_params_flags>`
+
+.. _hevc_slice_params_flags:
+
+``Slice Parameters Flags``
+
+.. cssclass:: longtable
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA``
+ - 0x00000001
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA``
+ - 0x00000002
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED``
+ - 0x00000004
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO``
+ - 0x00000008
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT``
+ - 0x00000010
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0``
+ - 0x00000020
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV``
+ - 0x00000040
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED``
+ - 0x00000080
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED``
+ - 0x00000100
+ -
+
+.. c:type:: v4l2_hevc_dpb_entry
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_hevc_dpb_entry
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u64
+ - ``timestamp``
+ - Timestamp of the V4L2 capture buffer to use as reference, used
+ with B-coded and P-coded frames. The timestamp refers to the
+ ``timestamp`` field in struct :c:type:`v4l2_buffer`. Use the
+ :c:func:`v4l2_timeval_to_ns()` function to convert the struct
+ :c:type:`timeval` in struct :c:type:`v4l2_buffer` to a __u64.
+ * - __u8
+ - ``rps``
+ - The reference set for the reference frame
+ (V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_BEFORE,
+ V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_AFTER or
+ V4L2_HEVC_DPB_ENTRY_RPS_LT_CURR)
+ * - __u8
+ - ``field_pic``
+ - Whether the reference is a field picture or a frame.
+ * - __u16
+ - ``pic_order_cnt[2]``
+ - The picture order count of the reference. Only the first element of the
+ array is used for frame pictures, while the first element identifies the
+ top field and the second the bottom field in field-coded pictures.
+
+.. c:type:: v4l2_hevc_pred_weight_table
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_hevc_pred_weight_table
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u8
+ - ``luma_log2_weight_denom``
+ -
+ * - __s8
+ - ``delta_chroma_log2_weight_denom``
+ -
+ * - __s8
+ - ``delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ -
+ * - __s8
+ - ``luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ -
+ * - __s8
+ - ``delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
+ -
+ * - __s8
+ - ``chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
+ -
+ * - __s8
+ - ``delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ -
+ * - __s8
+ - ``luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ -
+ * - __s8
+ - ``delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
+ -
+ * - __s8
+ - ``chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
+ -
diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
index dc500632095d..e090ef33231c 100644
--- a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
+++ b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst
@@ -473,6 +473,24 @@ See also the examples in :ref:`control`.
- n/a
- A struct :c:type:`v4l2_ctrl_h264_decode_params`, containing H264
decode parameters for stateless video decoders.
+ * - ``V4L2_CTRL_TYPE_HEVC_SPS``
+ - n/a
+ - n/a
+ - n/a
+ - A struct :c:type:`v4l2_ctrl_hevc_sps`, containing HEVC Sequence
+ Parameter Set for stateless video decoders.
+ * - ``V4L2_CTRL_TYPE_HEVC_PPS``
+ - n/a
+ - n/a
+ - n/a
+ - A struct :c:type:`v4l2_ctrl_hevc_pps`, containing HEVC Picture
+ Parameter Set for stateless video decoders.
+ * - ``V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS``
+ - n/a
+ - n/a
+ - n/a
+ - A struct :c:type:`v4l2_ctrl_hevc_slice_params`, containing HEVC
+ slice parameters for stateless video decoders.
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
diff --git a/Documentation/media/videodev2.h.rst.exceptions b/Documentation/media/videodev2.h.rst.exceptions
index 55cbe324b9fc..afba7d71971a 100644
--- a/Documentation/media/videodev2.h.rst.exceptions
+++ b/Documentation/media/videodev2.h.rst.exceptions
@@ -141,6 +141,9 @@ replace symbol V4L2_CTRL_TYPE_H264_PPS :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_H264_SCALING_MATRIX :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_H264_SLICE_PARAMS :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_H264_DECODE_PARAMS :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_HEVC_SPS :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_HEVC_PPS :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS :c:type:`v4l2_ctrl_type`
# V4L2 capability defines
replace define V4L2_CAP_VIDEO_CAPTURE device-capabilities
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index 84916b6889e2..032b388a29d9 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -932,6 +932,9 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_MPEG_VIDEO_HEVC_SIZE_OF_LENGTH_FIELD: return "HEVC Size of Length Field";
case V4L2_CID_MPEG_VIDEO_REF_NUMBER_FOR_PFRAMES: return "Reference Frames for a P-Frame";
case V4L2_CID_MPEG_VIDEO_PREPEND_SPSPPS_TO_IDR: return "Prepend SPS and PPS to IDR";
+ case V4L2_CID_MPEG_VIDEO_HEVC_SPS: return "HEVC Sequence Parameter Set";
+ case V4L2_CID_MPEG_VIDEO_HEVC_PPS: return "HEVC Picture Parameter Set";
+ case V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS: return "HEVC Slice Parameters";
/* CAMERA controls */
/* Keep the order of the 'case's the same as in v4l2-controls.h! */
@@ -1345,6 +1348,15 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS:
*type = V4L2_CTRL_TYPE_H264_DECODE_PARAMS;
break;
+ case V4L2_CID_MPEG_VIDEO_HEVC_SPS:
+ *type = V4L2_CTRL_TYPE_HEVC_SPS;
+ break;
+ case V4L2_CID_MPEG_VIDEO_HEVC_PPS:
+ *type = V4L2_CTRL_TYPE_HEVC_PPS;
+ break;
+ case V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS:
+ *type = V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS;
+ break;
default:
*type = V4L2_CTRL_TYPE_INTEGER;
break;
@@ -1628,6 +1640,11 @@ static void std_log(const struct v4l2_ctrl *ctrl)
0; \
})
+/*
+ * Codec-specific validation also requires setting unused fields/flags to zero
+ * in order to properly detect unchanged controls with memcmp.
+ */
+
static int std_validate_mpeg2(const struct v4l2_ctrl *ctrl, u32 idx,
union v4l2_ctrl_ptr ptr)
{
@@ -1679,6 +1696,78 @@ static int std_validate_mpeg2(const struct v4l2_ctrl *ctrl, u32 idx,
}
}
+static int std_validate_hevc(const struct v4l2_ctrl *ctrl, u32 idx,
+ union v4l2_ctrl_ptr ptr)
+{
+ struct v4l2_ctrl_hevc_sps *sps = ptr.p_hevc_sps;
+ struct v4l2_ctrl_hevc_pps *pps = ptr.p_hevc_pps;
+ struct v4l2_ctrl_hevc_slice_params *slice_params =
+ ptr.p_hevc_slice_params;
+ unsigned int i;
+
+ /* Validate and clear unused fields. */
+ switch ((u32)ctrl->type) {
+ case V4L2_CTRL_TYPE_HEVC_SPS:
+ if (!(sps->flags & V4L2_HEVC_SPS_FLAG_PCM_ENABLED)) {
+ sps->pcm_sample_bit_depth_luma_minus1 = 0;
+ sps->pcm_sample_bit_depth_chroma_minus1 = 0;
+ sps->log2_min_pcm_luma_coding_block_size_minus3 = 0;
+ sps->log2_diff_max_min_pcm_luma_coding_block_size = 0;
+ }
+
+ if (!(sps->flags & V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT))
+ sps->num_long_term_ref_pics_sps = 0;
+
+ return 0;
+ case V4L2_CTRL_TYPE_HEVC_PPS:
+ memset(pps->padding, 0, sizeof(pps->padding));
+
+ if (!(pps->flags & V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED))
+ pps->diff_cu_qp_delta_depth = 0;
+
+ if (!(pps->flags & V4L2_HEVC_PPS_FLAG_TILES_ENABLED)) {
+ pps->num_tile_columns_minus1 = 0;
+ pps->num_tile_rows_minus1 = 0;
+ memset(&pps->column_width_minus1, 0,
+ sizeof(pps->column_width_minus1));
+ memset(&pps->row_height_minus1, 0,
+ sizeof(pps->row_height_minus1));
+
+ pps->flags &= ~V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED;
+ }
+
+ if (pps->flags & V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER) {
+ pps->pps_beta_offset_div2 = 0;
+ pps->pps_tc_offset_div2 = 0;
+ }
+
+ return 0;
+ case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS:
+ if (slice_params->num_active_dpb_entries >
+ V4L2_HEVC_DPB_ENTRIES_NUM_MAX)
+ return -EINVAL;
+
+ memset(&slice_params->padding_pre, 0,
+ sizeof(slice_params->padding_pre));
+ memset(&slice_params->padding_post, 0,
+ sizeof(slice_params->padding_post));
+ memset(&slice_params->pred_weight_table.padding, 0,
+ sizeof(slice_params->pred_weight_table.padding));
+
+ for (i = 0; i < slice_params->num_active_dpb_entries; i++) {
+ struct v4l2_hevc_dpb_entry *dpb_entry =
+ &slice_params->dpb[i];
+
+ memset(&dpb_entry->padding, 0,
+ sizeof(dpb_entry->padding));
+ }
+
+ return 0;
+ default:
+ return 0;
+ }
+}
+
/* Validate a new control */
static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx,
union v4l2_ctrl_ptr ptr)
@@ -1759,6 +1848,11 @@ static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx,
case V4L2_CTRL_TYPE_H264_DECODE_PARAMS:
return 0;
+ case V4L2_CTRL_TYPE_HEVC_SPS:
+ case V4L2_CTRL_TYPE_HEVC_PPS:
+ case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS:
+ return std_validate_hevc(ctrl, idx, ptr);
+
default:
return -EINVAL;
}
@@ -2357,6 +2451,15 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
case V4L2_CTRL_TYPE_H264_DECODE_PARAMS:
elem_size = sizeof(struct v4l2_ctrl_h264_decode_params);
break;
+ case V4L2_CTRL_TYPE_HEVC_SPS:
+ elem_size = sizeof(struct v4l2_ctrl_hevc_sps);
+ break;
+ case V4L2_CTRL_TYPE_HEVC_PPS:
+ elem_size = sizeof(struct v4l2_ctrl_hevc_pps);
+ break;
+ case V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS:
+ elem_size = sizeof(struct v4l2_ctrl_hevc_slice_params);
+ break;
default:
if (type < V4L2_CTRL_COMPOUND_TYPES)
elem_size = sizeof(s32);
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index b1f4b991dba6..7f91ea45929e 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1333,6 +1333,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_VP8: descr = "VP8"; break;
case V4L2_PIX_FMT_VP9: descr = "VP9"; break;
case V4L2_PIX_FMT_HEVC: descr = "HEVC"; break; /* aka H.265 */
+ case V4L2_PIX_FMT_HEVC_SLICE: descr = "HEVC Parsed Slice Data"; break;
case V4L2_PIX_FMT_FWHT: descr = "FWHT"; break; /* used in vicodec */
case V4L2_PIX_FMT_FWHT_STATELESS: descr = "FWHT Stateless"; break; /* used in vicodec */
case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break;
diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h
new file mode 100644
index 000000000000..f10f57625142
--- /dev/null
+++ b/include/media/hevc-ctrls.h
@@ -0,0 +1,197 @@
+/* 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>
+
+/* The pixel format isn't stable at the moment and will likely be renamed. */
+#define V4L2_PIX_FMT_HEVC_SLICE v4l2_fourcc('S', '2', '6', '5') /* HEVC parsed slices */
+
+#define V4L2_CID_MPEG_VIDEO_HEVC_SPS (V4L2_CID_MPEG_BASE + 1008)
+#define V4L2_CID_MPEG_VIDEO_HEVC_PPS (V4L2_CID_MPEG_BASE + 1009)
+#define V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS (V4L2_CID_MPEG_BASE + 1010)
+
+/* enum v4l2_ctrl_type type values */
+#define V4L2_CTRL_TYPE_HEVC_SPS 0x0120
+#define V4L2_CTRL_TYPE_HEVC_PPS 0x0121
+#define V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS 0x0122
+
+#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 (1 << 0)
+#define V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED (1 << 1)
+#define V4L2_HEVC_SPS_FLAG_AMP_ENABLED (1 << 2)
+#define V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET (1 << 3)
+#define V4L2_HEVC_SPS_FLAG_PCM_ENABLED (1 << 4)
+#define V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED (1 << 5)
+#define V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT (1 << 6)
+#define V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED (1 << 7)
+#define V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED (1 << 8)
+
+/* The controls are not stable at the moment and will likely be reworked. */
+struct v4l2_ctrl_hevc_sps {
+ /* ISO/IEC 23008-2, ITU-T Rec. H.265: Sequence parameter set */
+ __u8 chroma_format_idc;
+ __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;
+
+ __u64 flags;
+};
+
+#define V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT (1 << 0)
+#define V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT (1 << 1)
+#define V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED (1 << 2)
+#define V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT (1 << 3)
+#define V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED (1 << 4)
+#define V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED (1 << 5)
+#define V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED (1 << 6)
+#define V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT (1 << 7)
+#define V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED (1 << 8)
+#define V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED (1 << 9)
+#define V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED (1 << 10)
+#define V4L2_HEVC_PPS_FLAG_TILES_ENABLED (1 << 11)
+#define V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED (1 << 12)
+#define V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED (1 << 13)
+#define V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED (1 << 14)
+#define V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED (1 << 15)
+#define V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER (1 << 16)
+#define V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT (1 << 17)
+#define V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT (1 << 18)
+
+struct v4l2_ctrl_hevc_pps {
+ /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture parameter set */
+ __u8 num_extra_slice_header_bits;
+ __s8 init_qp_minus26;
+ __u8 diff_cu_qp_delta_depth;
+ __s8 pps_cb_qp_offset;
+ __s8 pps_cr_qp_offset;
+ __u8 num_tile_columns_minus1;
+ __u8 num_tile_rows_minus1;
+ __u8 column_width_minus1[20];
+ __u8 row_height_minus1[22];
+ __s8 pps_beta_offset_div2;
+ __s8 pps_tc_offset_div2;
+ __u8 log2_parallel_merge_level_minus2;
+
+ __u8 padding[4];
+ __u64 flags;
+};
+
+#define V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_BEFORE 0x01
+#define V4L2_HEVC_DPB_ENTRY_RPS_ST_CURR_AFTER 0x02
+#define V4L2_HEVC_DPB_ENTRY_RPS_LT_CURR 0x03
+
+#define V4L2_HEVC_DPB_ENTRIES_NUM_MAX 16
+
+struct v4l2_hevc_dpb_entry {
+ __u64 timestamp;
+ __u8 rps;
+ __u8 field_pic;
+ __u16 pic_order_cnt[2];
+ __u8 padding[2];
+};
+
+struct v4l2_hevc_pred_weight_table {
+ __u8 luma_log2_weight_denom;
+ __s8 delta_chroma_log2_weight_denom;
+
+ __s8 delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
+ __s8 luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
+ __s8 delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
+ __s8 chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
+
+ __s8 delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
+ __s8 luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
+ __s8 delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
+ __s8 chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2];
+
+ __u8 padding[6];
+};
+
+#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA (1 << 0)
+#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA (1 << 1)
+#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED (1 << 2)
+#define V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO (1 << 3)
+#define V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT (1 << 4)
+#define V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0 (1 << 5)
+#define V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV (1 << 6)
+#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED (1 << 7)
+#define V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED (1 << 8)
+
+struct v4l2_ctrl_hevc_slice_params {
+ __u32 bit_size;
+ __u32 data_bit_offset;
+
+ /* 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;
+ __u16 slice_pic_order_cnt;
+ __u8 num_ref_idx_l0_active_minus1;
+ __u8 num_ref_idx_l1_active_minus1;
+ __u8 collocated_ref_idx;
+ __u8 five_minus_max_num_merge_cand;
+ __s8 slice_qp_delta;
+ __s8 slice_cb_qp_offset;
+ __s8 slice_cr_qp_offset;
+ __s8 slice_act_y_qp_offset;
+ __s8 slice_act_cb_qp_offset;
+ __s8 slice_act_cr_qp_offset;
+ __s8 slice_beta_offset_div2;
+ __s8 slice_tc_offset_div2;
+
+ /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture timing SEI message */
+ __u8 pic_struct;
+
+ __u8 padding_pre[13];
+
+ /* ISO/IEC 23008-2, ITU-T Rec. H.265: General slice segment header */
+ struct v4l2_hevc_dpb_entry dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
+ __u8 num_active_dpb_entries;
+ __u8 ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
+ __u8 ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX];
+
+ __u8 num_rps_poc_st_curr_before;
+ __u8 num_rps_poc_st_curr_after;
+ __u8 num_rps_poc_lt_curr;
+
+ /* ISO/IEC 23008-2, ITU-T Rec. H.265: Weighted prediction parameter */
+ struct v4l2_hevc_pred_weight_table pred_weight_table;
+
+ __u8 padding_post[4];
+ __u64 flags;
+};
+
+#endif
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index b4433483af23..2fd477108e7a 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -20,6 +20,7 @@
#include <media/mpeg2-ctrls.h>
#include <media/fwht-ctrls.h>
#include <media/h264-ctrls.h>
+#include <media/hevc-ctrls.h>
/* forward references */
struct file;
@@ -48,6 +49,9 @@ struct poll_table_struct;
* @p_h264_scaling_matrix: Pointer to a struct v4l2_ctrl_h264_scaling_matrix.
* @p_h264_slice_params: Pointer to a struct v4l2_ctrl_h264_slice_params.
* @p_h264_decode_params: Pointer to a struct v4l2_ctrl_h264_decode_params.
+ * @p_hevc_sps: Pointer to an HEVC sequence parameter set structure.
+ * @p_hevc_pps: Pointer to an HEVC picture parameter set structure.
+ * @p_hevc_slice_params: Pointer to an HEVC slice parameters structure.
* @p: Pointer to a compound value.
*/
union v4l2_ctrl_ptr {
@@ -65,6 +69,9 @@ union v4l2_ctrl_ptr {
struct v4l2_ctrl_h264_scaling_matrix *p_h264_scaling_matrix;
struct v4l2_ctrl_h264_slice_params *p_h264_slice_params;
struct v4l2_ctrl_h264_decode_params *p_h264_decode_params;
+ struct v4l2_ctrl_hevc_sps *p_hevc_sps;
+ struct v4l2_ctrl_hevc_pps *p_hevc_pps;
+ struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params;
void *p;
};
--
2.21.0