On 2/14/19 10:53 AM, Paul Kocialkowski wrote: > 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. > > This 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 | 418 ++++++++++++++++++ > .../media/uapi/v4l/pixfmt-compressed.rst | 15 + > .../media/uapi/v4l/vidioc-queryctrl.rst | 18 + > .../media/videodev2.h.rst.exceptions | 3 + > drivers/media/v4l2-core/v4l2-ctrls.c | 26 ++ > drivers/media/v4l2-core/v4l2-ioctl.c | 1 + > include/media/hevc-ctrls.h | 181 ++++++++ > include/media/v4l2-ctrls.h | 7 + > include/uapi/linux/videodev2.h | 1 + > 10 files changed, 679 insertions(+) > 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 3fc3f7ff338a..b4b3fcec55dd 100644 > --- a/Documentation/media/uapi/v4l/biblio.rst > +++ b/Documentation/media/uapi/v4l/biblio.rst > @@ -131,6 +131,15 @@ ITU H.264 > > :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 d152474c18bc..3714dfd1449b 100644 > --- a/Documentation/media/uapi/v4l/ext-ctrls-codec.rst > +++ b/Documentation/media/uapi/v4l/ext-ctrls-codec.rst > @@ -2067,6 +2067,424 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type - > - 0x00000002 > - > > +.. _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`` > + - > + * - __u8 > + - ``separate_colour_plane_flag`` > + - > + * - __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 > + - ``scaling_list_enabled_flag`` > + - > + * - __u8 > + - ``amp_enabled_flag`` > + - > + * - __u8 > + - ``sample_adaptive_offset_enabled_flag`` > + - > + * - __u8 > + - ``pcm_enabled_flag`` > + - > + * - __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 > + - ``pcm_loop_filter_disabled_flag`` > + - > + * - __u8 > + - ``num_short_term_ref_pic_sets`` > + - > + * - __u8 > + - ``long_term_ref_pics_present_flag`` > + - > + * - __u8 > + - ``num_long_term_ref_pics_sps`` > + - > + * - __u8 > + - ``sps_temporal_mvp_enabled_flag`` > + - > + * - __u8 > + - ``strong_intra_smoothing_enabled_flag`` > + - > + > +``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 > + - ``dependent_slice_segment_flag`` > + - > + * - __u8 > + - ``output_flag_present_flag`` > + - > + * - __u8 > + - ``num_extra_slice_header_bits`` > + - > + * - __u8 > + - ``sign_data_hiding_enabled_flag`` > + - > + * - __u8 > + - ``cabac_init_present_flag`` > + - > + * - __s8 > + - ``init_qp_minus26`` > + - > + * - __u8 > + - ``constrained_intra_pred_flag`` > + - > + * - __u8 > + - ``transform_skip_enabled_flag`` > + - > + * - __u8 > + - ``cu_qp_delta_enabled_flag`` > + - > + * - __u8 > + - ``diff_cu_qp_delta_depth`` > + - > + * - __s8 > + - ``pps_cb_qp_offset`` > + - > + * - __s8 > + - ``pps_cr_qp_offset`` > + - > + * - __u8 > + - ``pps_slice_chroma_qp_offsets_present_flag`` > + - > + * - __u8 > + - ``weighted_pred_flag`` > + - > + * - __u8 > + - ``weighted_bipred_flag`` > + - > + * - __u8 > + - ``transquant_bypass_enabled_flag`` > + - > + * - __u8 > + - ``tiles_enabled_flag`` > + - > + * - __u8 > + - ``entropy_coding_sync_enabled_flag`` > + - > + * - __u8 > + - ``num_tile_columns_minus1`` > + - > + * - __u8 > + - ``num_tile_rows_minus1`` > + - > + * - __u8 > + - ``column_width_minus1[20]`` > + - > + * - __u8 > + - ``row_height_minus1[22]`` > + - > + * - __u8 > + - ``loop_filter_across_tiles_enabled_flag`` > + - > + * - __u8 > + - ``pps_loop_filter_across_slices_enabled_flag`` > + - > + * - __u8 > + - ``deblocking_filter_override_enabled_flag`` > + - > + * - __u8 > + - ``pps_disable_deblocking_filter_flag`` > + - > + * - __s8 > + - ``pps_beta_offset_div2`` > + - > + * - __s8 > + - ``pps_tc_offset_div2`` > + - > + * - __u8 > + - ``lists_modification_present_flag`` > + - > + * - __u8 > + - ``log2_parallel_merge_level_minus2`` > + - > + * - __u8 > + - ``slice_segment_header_extension_present_flag`` > + - > + > +``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 > + - ``slice_sao_luma_flag`` > + - > + * - __u8 > + - ``slice_sao_chroma_flag`` > + - > + * - __u8 > + - ``slice_temporal_mvp_enabled_flag`` > + - > + * - __u8 > + - ``num_ref_idx_l0_active_minus1`` > + - > + * - __u8 > + - ``num_ref_idx_l1_active_minus1`` > + - > + * - __u8 > + - ``mvd_l1_zero_flag`` > + - > + * - __u8 > + - ``cabac_init_flag`` > + - > + * - __u8 > + - ``collocated_from_l0_flag`` > + - > + * - __u8 > + - ``collocated_ref_idx`` > + - > + * - __u8 > + - ``five_minus_max_num_merge_cand`` > + - > + * - __u8 > + - ``use_integer_mv_flag`` > + - > + * - __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`` > + - > + * - __u8 > + - ``slice_deblocking_filter_disabled_flag`` > + - > + * - __s8 > + - ``slice_beta_offset_div2`` > + - > + * - __s8 > + - ``slice_tc_offset_div2`` > + - > + * - __u8 > + - ``slice_loop_filter_across_slices_enabled_flag`` > + - > + * - __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. > + > +.. 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 > + > + * - __u32 > + - ``buffer_tag`` > + - The V4L2 buffer tag that matches the associated reference picture. This struct documentation is out of date with the actual struct! > + * - __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]`` > + - > > MFC 5.1 MPEG Controls > ===================== > diff --git a/Documentation/media/uapi/v4l/pixfmt-compressed.rst b/Documentation/media/uapi/v4l/pixfmt-compressed.rst > index b6f857ac1a8e..ee82526cdc00 100644 > --- a/Documentation/media/uapi/v4l/pixfmt-compressed.rst > +++ b/Documentation/media/uapi/v4l/pixfmt-compressed.rst > @@ -138,6 +138,21 @@ Compressed Formats > - ``V4L2_PIX_FMT_HEVC`` > - 'HEVC' > - HEVC/H.265 video elementary stream. > + * .. _V4L2-PIX-FMT-HEVC-SLICE: > + > + - ``V4L2_PIX_FMT_HEVC_SLICE`` > + - 'S265' > + - HEVC parsed slice data, as extracted from the HEVC bitstream. > + This format is adapted for stateless video decoders that implement a > + HEVC pipeline (using the :ref:`codec` and :ref:`media-request-api`). > + Metadata associated with the frame to decode is required to be passed > + through the following controls : > + * ``V4L2_CID_MPEG_VIDEO_HEVC_SPS`` > + * ``V4L2_CID_MPEG_VIDEO_HEVC_PPS`` > + * ``V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS`` > + See the :ref:`associated Codec Control IDs <v4l2-mpeg-hevc>`. > + Buffers associated with this pixel format must contain the appropriate > + number of macroblocks to decode a full corresponding frame. > * .. _V4L2-PIX-FMT-FWHT: > > - ``V4L2_PIX_FMT_FWHT`` > diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst > index bf29dc5b9758..f37cb377e258 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_param`, 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 366200d31bc0..106c80ec9312 100644 > --- a/drivers/media/v4l2-core/v4l2-ctrls.c > +++ b/drivers/media/v4l2-core/v4l2-ctrls.c > @@ -916,6 +916,9 @@ 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! */ > @@ -1323,6 +1326,15 @@ 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; > @@ -1696,6 +1708,11 @@ 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 0; > + > default: > return -EINVAL; > } > @@ -2291,6 +2308,15 @@ 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_param); > 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 8aa7de17ecfa..e792fc97e263 100644 > --- a/drivers/media/v4l2-core/v4l2-ioctl.c > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c > @@ -1331,6 +1331,7 @@ 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_CPIA1: descr = "GSPCA CPiA YUV"; break; > case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break; > diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h > new file mode 100644 > index 000000000000..005c71c67163 > --- /dev/null > +++ b/include/media/hevc-ctrls.h > @@ -0,0 +1,181 @@ > +/* 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_ > + > +#define V4L2_CID_MPEG_VIDEO_HEVC_SPS (V4L2_CID_MPEG_BASE + 645) > +#define V4L2_CID_MPEG_VIDEO_HEVC_PPS (V4L2_CID_MPEG_BASE + 646) > +#define V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS (V4L2_CID_MPEG_BASE + 647) > + > +/* enum v4l2_ctrl_type type values */ > +#define V4L2_CTRL_TYPE_HEVC_SPS 0x0110 > +#define V4L2_CTRL_TYPE_HEVC_PPS 0x0111 > +#define V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS 0x0112 > + > +#define V4L2_HEVC_SLICE_TYPE_B 0 > +#define V4L2_HEVC_SLICE_TYPE_P 1 > +#define V4L2_HEVC_SLICE_TYPE_I 2 > + > +struct v4l2_ctrl_hevc_sps { > + /* ISO/IEC 23008-2, ITU-T Rec. H.265: Sequence parameter set */ > + __u8 chroma_format_idc; > + __u8 separate_colour_plane_flag; > + __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 scaling_list_enabled_flag; > + __u8 amp_enabled_flag; > + __u8 sample_adaptive_offset_enabled_flag; > + __u8 pcm_enabled_flag; > + __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 pcm_loop_filter_disabled_flag; > + __u8 num_short_term_ref_pic_sets; > + __u8 long_term_ref_pics_present_flag; > + __u8 num_long_term_ref_pics_sps; > + __u8 sps_temporal_mvp_enabled_flag; > + __u8 strong_intra_smoothing_enabled_flag; > +}; > + > +struct v4l2_ctrl_hevc_pps { > + /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture parameter set */ > + __u8 dependent_slice_segment_flag; > + __u8 output_flag_present_flag; > + __u8 num_extra_slice_header_bits; > + __u8 sign_data_hiding_enabled_flag; > + __u8 cabac_init_present_flag; > + __s8 init_qp_minus26; > + __u8 constrained_intra_pred_flag; > + __u8 transform_skip_enabled_flag; > + __u8 cu_qp_delta_enabled_flag; > + __u8 diff_cu_qp_delta_depth; > + __s8 pps_cb_qp_offset; > + __s8 pps_cr_qp_offset; > + __u8 pps_slice_chroma_qp_offsets_present_flag; > + __u8 weighted_pred_flag; > + __u8 weighted_bipred_flag; > + __u8 transquant_bypass_enabled_flag; > + __u8 tiles_enabled_flag; > + __u8 entropy_coding_sync_enabled_flag; > + __u8 num_tile_columns_minus1; > + __u8 num_tile_rows_minus1; > + __u8 column_width_minus1[20]; > + __u8 row_height_minus1[22]; > + __u8 loop_filter_across_tiles_enabled_flag; > + __u8 pps_loop_filter_across_slices_enabled_flag; > + __u8 deblocking_filter_override_enabled_flag; > + __u8 pps_disable_deblocking_filter_flag; > + __s8 pps_beta_offset_div2; > + __s8 pps_tc_offset_div2; > + __u8 lists_modification_present_flag; > + __u8 log2_parallel_merge_level_minus2; > + __u8 slice_segment_header_extension_present_flag; > + __u8 padding; > +}; > + > +#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; I would call this 'reference_ts' rather than plain 'timestamp'. Or at least some other name that reflects what the timestamp refers to. > + __u8 rps; > + __u8 field_pic; > + __u16 pic_order_cnt[2]; > + __u8 padding[2]; padding fields here or elsewhere are not documented. Do you really need them? What if you changed rps and field_pic to __u16 instead? Padding fields are painful to maintain in my experience. Regards, Hans > +}; > + > +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[2]; > +}; > + > +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 slice_sao_luma_flag; > + __u8 slice_sao_chroma_flag; > + __u8 slice_temporal_mvp_enabled_flag; > + __u8 num_ref_idx_l0_active_minus1; > + __u8 num_ref_idx_l1_active_minus1; > + __u8 mvd_l1_zero_flag; > + __u8 cabac_init_flag; > + __u8 collocated_from_l0_flag; > + __u8 collocated_ref_idx; > + __u8 five_minus_max_num_merge_cand; > + __u8 use_integer_mv_flag; > + __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; > + __u8 slice_deblocking_filter_disabled_flag; > + __s8 slice_beta_offset_div2; > + __s8 slice_tc_offset_div2; > + __u8 slice_loop_filter_across_slices_enabled_flag; > + > + /* ISO/IEC 23008-2, ITU-T Rec. H.265: Picture timing SEI message */ > + __u8 pic_struct; > + > + /* 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[2]; > +}; > + > +#endif > diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h > index 22b6d09c4764..f24a835e5920 100644 > --- a/include/media/v4l2-ctrls.h > +++ b/include/media/v4l2-ctrls.h > @@ -28,6 +28,7 @@ > */ > #include <media/mpeg2-ctrls.h> > #include <media/h264-ctrls.h> > +#include <media/hevc-ctrls.h> > > /* forward references */ > struct file; > @@ -55,6 +56,9 @@ struct poll_table_struct; > * @p_h264_scaling_matrix: Pointer to a struct v4l2_ctrl_h264_scaling_matrix. > * @p_h264_slice_param: Pointer to a struct v4l2_ctrl_h264_slice_param. > * @p_h264_decode_param: Pointer to a struct v4l2_ctrl_h264_decode_param. > + * @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 { > @@ -71,6 +75,9 @@ union v4l2_ctrl_ptr { > struct v4l2_ctrl_h264_scaling_matrix *p_h264_scaling_matrix; > struct v4l2_ctrl_h264_slice_param *p_h264_slice_param; > struct v4l2_ctrl_h264_decode_param *p_h264_decode_param; > + 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; > }; > > diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h > index 673172c84fb9..5ae4f00f4078 100644 > --- a/include/uapi/linux/videodev2.h > +++ b/include/uapi/linux/videodev2.h > @@ -669,6 +669,7 @@ struct v4l2_pix_format { > #define V4L2_PIX_FMT_VP8 v4l2_fourcc('V', 'P', '8', '0') /* VP8 */ > #define V4L2_PIX_FMT_VP9 v4l2_fourcc('V', 'P', '9', '0') /* VP9 */ > #define V4L2_PIX_FMT_HEVC v4l2_fourcc('H', 'E', 'V', 'C') /* HEVC aka H.265 */ > +#define V4L2_PIX_FMT_HEVC_SLICE v4l2_fourcc('S', '2', '6', '5') /* HEVC parsed slices */ > #define V4L2_PIX_FMT_FWHT v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */ > > /* Vendor-specific formats */ >
