On Thu, Nov 15, 2018 at 03:56:49PM +0100, Maxime Ripard wrote: > From: Pawel Osciak <posciak@xxxxxxxxxxxx> > > Stateless video codecs will require both the H264 metadata and slices in > order to be able to decode frames. > > This introduces the definitions for a new pixel format for H264 slices that > have been parsed, as well as the structures used to pass the metadata from > the userspace to the kernel. > > Co-Developed-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxx> > Signed-off-by: Pawel Osciak <posciak@xxxxxxxxxxxx> > Signed-off-by: Guenter Roeck <groeck@xxxxxxxxxxxx> > Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxx> > --- > Documentation/media/uapi/v4l/biblio.rst | 9 + > .../media/uapi/v4l/extended-controls.rst | 364 ++++++++++++++++++ > .../media/uapi/v4l/pixfmt-compressed.rst | 20 + > .../media/uapi/v4l/vidioc-queryctrl.rst | 30 ++ > .../media/videodev2.h.rst.exceptions | 5 + > drivers/media/v4l2-core/v4l2-ctrls.c | 42 ++ > drivers/media/v4l2-core/v4l2-ioctl.c | 1 + > include/media/v4l2-ctrls.h | 10 + > include/uapi/linux/v4l2-controls.h | 166 ++++++++ > include/uapi/linux/videodev2.h | 11 + > 10 files changed, 658 insertions(+) > > diff --git a/Documentation/media/uapi/v4l/biblio.rst b/Documentation/media/uapi/v4l/biblio.rst > index 386d6cf83e9c..73aeb7ce47d2 100644 > --- a/Documentation/media/uapi/v4l/biblio.rst > +++ b/Documentation/media/uapi/v4l/biblio.rst > @@ -115,6 +115,15 @@ ITU BT.1119 > > :author: International Telecommunication Union (http://www.itu.ch) > > +.. _h264: > + > +ITU H.264 > +========= > + > +:title: ITU-T Recommendation H.264 "Advanced Video Coding for Generic Audiovisual Services" > + > +:author: International Telecommunication Union (http://www.itu.ch) > + > .. _jfif: > > JFIF > diff --git a/Documentation/media/uapi/v4l/extended-controls.rst b/Documentation/media/uapi/v4l/extended-controls.rst > index 65a1d873196b..87c0d151577f 100644 > --- a/Documentation/media/uapi/v4l/extended-controls.rst > +++ b/Documentation/media/uapi/v4l/extended-controls.rst > @@ -1674,6 +1674,370 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type - > non-intra-coded frames, in zigzag scanning order. Only relevant for > non-4:2:0 YUV formats. > > +.. _v4l2-mpeg-h264: > + > +``V4L2_CID_MPEG_VIDEO_H264_SPS (struct)`` > + Specifies the sequence parameter set (as extracted from the > + bitstream) for the associated H264 slice data. This includes the > + necessary parameters for configuring a stateless hardware decoding > + pipeline for H264. The bitstream parameters are defined according > + to :ref:`h264`. Unless there's a specific comment, refer to the > + specification for the documentation of these fields. > + > +.. c:type:: v4l2_ctrl_h264_sps > + > +.. cssclass:: longtable > + > +.. flat-table:: struct v4l2_ctrl_h264_sps > + :header-rows: 0 > + :stub-columns: 0 > + :widths: 1 1 2 > + > + * - __u8 > + - ``profile_idc`` > + - > + * - __u8 > + - ``constraint_set_flags`` > + - TODO > + * - __u8 > + - ``level_idc`` > + - > + * - __u8 > + - ``seq_parameter_set_id`` > + - > + * - __u8 > + - ``chroma_format_idc`` > + - > + * - __u8 > + - ``bit_depth_luma_minus8`` > + - > + * - __u8 > + - ``bit_depth_chroma_minus8`` > + - > + * - __u8 > + - ``log2_max_frame_num_minus4`` > + - > + * - __u8 > + - ``pic_order_cnt_type`` > + - > + * - __u8 > + - ``log2_max_pic_order_cnt_lsb_minus4`` > + - > + * - __u8 > + - ``max_num_ref_frames`` > + - > + * - __u8 > + - ``num_ref_frames_in_pic_order_cnt_cycle`` > + - > + * - __s32 > + - ``offset_for_ref_frame[255]`` > + - > + * - __s32 > + - ``offset_for_non_ref_pic`` > + - > + * - __s32 > + - ``offset_for_top_to_bottom_field`` > + - > + * - __u16 > + - ``pic_width_in_mbs_minus1`` > + - > + * - __u16 > + - ``pic_height_in_map_units_minus1`` > + - > + * - __u8 > + - ``flags`` > + - TODO > + > +``V4L2_CID_MPEG_VIDEO_H264_PPS (struct)`` > + Specifies the picture parameter set (as extracted from the > + bitstream) for the associated H264 slice data. This includes the > + necessary parameters for configuring a stateless hardware decoding > + pipeline for H264. The bitstream parameters are defined according > + to :ref:`h264`. Unless there's a specific comment, refer to the > + specification for the documentation of these fields. > + > +.. c:type:: v4l2_ctrl_h264_pps > + > +.. cssclass:: longtable > + > +.. flat-table:: struct v4l2_ctrl_h264_pps > + :header-rows: 0 > + :stub-columns: 0 > + :widths: 1 1 2 > + > + * - __u8 > + - ``pic_parameter_set_id`` > + - > + * - __u8 > + - ``seq_parameter_set_id`` > + - > + * - __u8 > + - ``num_slice_groups_minus1`` > + - > + * - __u8 > + - ``num_ref_idx_l0_default_active_minus1`` > + - > + * - __u8 > + - ``num_ref_idx_l1_default_active_minus1`` > + - > + * - __u8 > + - ``weighted_bipred_idc`` > + - > + * - __s8 > + - ``pic_init_qp_minus26`` > + - > + * - __s8 > + - ``pic_init_qs_minus26`` > + - > + * - __s8 > + - ``chroma_qp_index_offset`` > + - > + * - __s8 > + - ``second_chroma_qp_index_offset`` > + - > + * - __u8 > + - ``flags`` > + - TODO > + > +``V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX (struct)`` > + Specifies the scaling matrix (as extracted from the bitstream) for > + the associated H264 slice data. The bitstream parameters are > + defined according to :ref:`h264`. Unless there's a specific > + comment, refer to the specification for the documentation of these > + fields. > + > +.. c:type:: v4l2_ctrl_h264_scaling_matrix > + > +.. cssclass:: longtable > + > +.. flat-table:: struct v4l2_ctrl_h264_scaling_matrix > + :header-rows: 0 > + :stub-columns: 0 > + :widths: 1 1 2 > + > + * - __u8 > + - ``scaling_list_4x4[6][16]`` > + - > + * - __u8 > + - ``scaling_list_8x8[6][64]`` > + - > + > +``V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS (struct)`` > + Specifies the slice parameters (as extracted from the bitstream) > + for the associated H264 slice data. This includes the necessary > + parameters for configuring a stateless hardware decoding pipeline > + for H264. The bitstream parameters are defined according to > + :ref:`h264`. Unless there's a specific comment, refer to the > + specification for the documentation of these fields. > + > +.. c:type:: v4l2_ctrl_h264_slice_param > + > +.. cssclass:: longtable > + > +.. flat-table:: struct v4l2_ctrl_h264_slice_param > + :header-rows: 0 > + :stub-columns: 0 > + :widths: 1 1 2 > + > + * - __u32 > + - ``size`` > + - > + * - __u32 > + - ``header_bit_size`` > + - > + * - __u16 > + - ``first_mb_in_slice`` > + - > + * - __u8 > + - ``slice_type`` > + - > + * - __u8 > + - ``pic_parameter_set_id`` > + - > + * - __u8 > + - ``colour_plane_id`` > + - > + * - __u16 > + - ``frame_num`` > + - > + * - __u16 > + - ``idr_pic_id`` > + - > + * - __u16 > + - ``pic_order_cnt_lsb`` > + - > + * - __s32 > + - ``delta_pic_order_cnt_bottom`` > + - > + * - __s32 > + - ``delta_pic_order_cnt0`` > + - > + * - __s32 > + - ``delta_pic_order_cnt1`` > + - > + * - __u8 > + - ``redundant_pic_cnt`` > + - > + * - struct :c:type:`v4l2_h264_pred_weight_table` > + - ``pred_weight_table`` > + - > + * - __u32 > + - ``dec_ref_pic_marking_bit_size`` > + - > + * - __u32 > + - ``pic_order_cnt_bit_size`` > + - > + * - __u8 > + - ``cabac_init_idc`` > + - > + * - __s8 > + - ``slice_qp_delta`` > + - > + * - __s8 > + - ``slice_qs_delta`` > + - > + * - __u8 > + - ``disable_deblocking_filter_idc`` > + - > + * - __s8 > + - ``slice_alpha_c0_offset_div2`` > + - > + * - __s8 > + - ``slice_beta_offset_div2`` > + - > + * - __u32 > + - ``slice_group_change_cycle`` > + - > + * - __u8 > + - ``num_ref_idx_l0_active_minus1`` > + - > + * - __u8 > + - ``num_ref_idx_l1_active_minus1`` > + - > + * - __u8 > + - ``ref_pic_list0[32]`` > + - > + * - __u8 > + - ``ref_pic_list1[32]`` > + - > + * - __u8 > + - ``flags`` > + - TODO > + > +.. c:type:: v4l2_h264_pred_weight_table > + > +.. cssclass:: longtable > + > +.. flat-table:: struct v4l2_h264_pred_weight_table > + :header-rows: 0 > + :stub-columns: 0 > + :widths: 1 1 2 > + > + * - __u8 > + - ``luma_log2_weight_denom`` > + - > + * - __u8 > + - ``chroma_log2_weight_denom`` > + - > + * - struct :c:type:`v4l2_h264_weight_factors` > + - ``weight_factors[2]`` > + - > + > +.. c:type:: v4l2_h264_weight_factors > + > +.. cssclass:: longtable > + > +.. flat-table:: struct v4l2_h264_weight_factors > + :header-rows: 0 > + :stub-columns: 0 > + :widths: 1 1 2 > + > + * - __s8 > + - ``luma_weight[32]`` > + - > + * - __s8 > + - ``luma_offset[32]`` > + - > + * - __s8 > + - ``chroma_weight[32][2]`` > + - > + * - __s8 > + - ``chroma_offset[32][2]`` > + - > + > +``V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS (struct)`` > + Specifies the decode parameters (as extracted from the bitstream) > + for the associated H264 slice data. This includes the necessary > + parameters for configuring a stateless hardware decoding pipeline > + for H264. The bitstream parameters are defined according to > + :ref:`h264`. Unless there's a specific comment, refer to the > + specification for the documentation of these fields. > + > +.. c:type:: v4l2_ctrl_h264_decode_param > + > +.. cssclass:: longtable > + > +.. flat-table:: struct v4l2_ctrl_h264_decode_param > + :header-rows: 0 > + :stub-columns: 0 > + :widths: 1 1 2 > + > + * - __u32 > + - ``num_slices`` > + - > + * - __u8 > + - ``idr_pic_flag`` > + - > + * - __u8 > + - ``nal_ref_idc`` > + - > + * - __s32 > + - ``top_field_order_cnt`` > + - > + * - __s32 > + - ``bottom_field_order_cnt`` > + - > + * - __u8 > + - ``ref_pic_list_p0[32]`` > + - > + * - __u8 > + - ``ref_pic_list_b0[32]`` > + - > + * - __u8 > + - ``ref_pic_list_b1[32]`` > + - > + * - struct :c:type:`v4l2_h264_dpb_entry` > + - ``dpb[16]`` > + - > + > +.. c:type:: v4l2_h264_dpb_entry > + > +.. cssclass:: longtable > + > +.. flat-table:: struct v4l2_h264_dpb_entry > + :header-rows: 0 > + :stub-columns: 0 > + :widths: 1 1 2 > + > + * - __u32 > + - ``tag`` > + - tag to identify the buffer containing the reference frame > + * - __u16 > + - ``frame_num`` > + - > + * - __u16 > + - ``pic_num`` > + - > + * - __s32 > + - ``top_field_order_cnt`` > + - > + * - __s32 > + - ``bottom_field_order_cnt`` > + - > + * - __u8 > + - ``flags`` > + - > + > MFC 5.1 MPEG Controls > --------------------- > > diff --git a/Documentation/media/uapi/v4l/pixfmt-compressed.rst b/Documentation/media/uapi/v4l/pixfmt-compressed.rst > index ba0f6c49d9bf..f15fc1c8d479 100644 > --- a/Documentation/media/uapi/v4l/pixfmt-compressed.rst > +++ b/Documentation/media/uapi/v4l/pixfmt-compressed.rst > @@ -45,6 +45,26 @@ Compressed Formats > - ``V4L2_PIX_FMT_H264_MVC`` > - 'M264' > - H264 MVC video elementary stream. > + * .. _V4L2-PIX-FMT-H264-SLICE: > + > + - ``V4L2_PIX_FMT_H264_SLICE`` > + - 'S264' > + - H264 parsed slice data, as extracted from the H264 bitstream. > + This format is adapted for stateless video decoders that > + implement an H264 pipeline (using the :ref:`codec` and > + :ref:`media-request-api`). Metadata associated with the frame > + to decode are required to be passed through the > + ``V4L2_CID_MPEG_VIDEO_H264_SPS``, > + ``V4L2_CID_MPEG_VIDEO_H264_PPS`` and > + ``V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS`` and > + ``V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS`` controls and > + scaling matrices can optionally be specified through the > + ``V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX`` control. See the > + :ref:`associated Codec Control IDs <v4l2-mpeg-h264>`. > + Exactly one output and one capture buffer must be provided for > + use with this pixel format. The output buffer must contain the > + appropriate number of macroblocks to decode a full > + corresponding frame to the matching capture buffer. > * .. _V4L2-PIX-FMT-H263: > > - ``V4L2_PIX_FMT_H263`` > diff --git a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst > index 258f5813f281..38a9c988124c 100644 > --- a/Documentation/media/uapi/v4l/vidioc-queryctrl.rst > +++ b/Documentation/media/uapi/v4l/vidioc-queryctrl.rst > @@ -436,6 +436,36 @@ See also the examples in :ref:`control`. > - n/a > - A struct :c:type:`v4l2_ctrl_mpeg2_quantization`, containing MPEG-2 > quantization matrices for stateless video decoders. > + * - ``V4L2_CTRL_TYPE_H264_SPS`` > + - n/a > + - n/a > + - n/a > + - A struct :c:type:`v4l2_ctrl_h264_sps`, containing H264 > + sequence parameters for stateless video decoders. > + * - ``V4L2_CTRL_TYPE_H264_PPS`` > + - n/a > + - n/a > + - n/a > + - A struct :c:type:`v4l2_ctrl_h264_pps`, containing H264 > + picture parameters for stateless video decoders. > + * - ``V4L2_CTRL_TYPE_H264_SCALING_MATRIX`` > + - n/a > + - n/a > + - n/a > + - A struct :c:type:`v4l2_ctrl_h264_scaling_matrix`, containing H264 > + scaling matrices for stateless video decoders. > + * - ``V4L2_CTRL_TYPE_H264_SLICE_PARAMS`` > + - n/a > + - n/a > + - n/a > + - A struct :c:type:`v4l2_ctrl_h264_slice_param`, containing H264 > + slice parameters for stateless video decoders. > + * - ``V4L2_CTRL_TYPE_H264_DECODE_PARAMS`` > + - n/a > + - n/a > + - n/a > + - A struct :c:type:`v4l2_ctrl_h264_decode_param`, containing H264 > + decode 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 1ec425a7c364..99f1bd2bc44c 100644 > --- a/Documentation/media/videodev2.h.rst.exceptions > +++ b/Documentation/media/videodev2.h.rst.exceptions > @@ -133,6 +133,11 @@ replace symbol V4L2_CTRL_TYPE_U32 :c:type:`v4l2_ctrl_type` > replace symbol V4L2_CTRL_TYPE_U8 :c:type:`v4l2_ctrl_type` > replace symbol V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS :c:type:`v4l2_ctrl_type` > replace symbol V4L2_CTRL_TYPE_MPEG2_QUANTIZATION :c:type:`v4l2_ctrl_type` > +replace symbol V4L2_CTRL_TYPE_H264_SPS :c:type:`v4l2_ctrl_type` > +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` > > # 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 b854cceb19dc..e96c453208e8 100644 > --- a/drivers/media/v4l2-core/v4l2-ctrls.c > +++ b/drivers/media/v4l2-core/v4l2-ctrls.c > @@ -825,6 +825,11 @@ const char *v4l2_ctrl_get_name(u32 id) > case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER:return "H264 Number of HC Layers"; > case V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER_QP: > return "H264 Set QP Value for HC Layers"; > + case V4L2_CID_MPEG_VIDEO_H264_SPS: return "H264 SPS"; > + case V4L2_CID_MPEG_VIDEO_H264_PPS: return "H264 PPS"; > + case V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX: return "H264 Scaling Matrix"; > + case V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS: return "H264 Slice Parameters"; > + case V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS: return "H264 Decode Parameters"; > case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP: return "MPEG4 I-Frame QP Value"; > case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP: return "MPEG4 P-Frame QP Value"; > case V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP: return "MPEG4 B-Frame QP Value"; > @@ -1300,6 +1305,21 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type, > case V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION: > *type = V4L2_CTRL_TYPE_MPEG2_QUANTIZATION; > break; > + case V4L2_CID_MPEG_VIDEO_H264_SPS: > + *type = V4L2_CTRL_TYPE_H264_SPS; > + break; > + case V4L2_CID_MPEG_VIDEO_H264_PPS: > + *type = V4L2_CTRL_TYPE_H264_PPS; > + break; > + case V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX: > + *type = V4L2_CTRL_TYPE_H264_SCALING_MATRIX; > + break; > + case V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS: > + *type = V4L2_CTRL_TYPE_H264_SLICE_PARAMS; > + break; > + case V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS: > + *type = V4L2_CTRL_TYPE_H264_DECODE_PARAMS; > + break; > default: > *type = V4L2_CTRL_TYPE_INTEGER; > break; > @@ -1665,6 +1685,13 @@ static int std_validate(const struct v4l2_ctrl *ctrl, u32 idx, > case V4L2_CTRL_TYPE_MPEG2_QUANTIZATION: > return 0; > > + case V4L2_CTRL_TYPE_H264_SPS: > + case V4L2_CTRL_TYPE_H264_PPS: > + case V4L2_CTRL_TYPE_H264_SCALING_MATRIX: > + case V4L2_CTRL_TYPE_H264_SLICE_PARAMS: > + case V4L2_CTRL_TYPE_H264_DECODE_PARAMS: > + return 0; > + > default: > return -EINVAL; > } > @@ -2245,6 +2272,21 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl, > case V4L2_CTRL_TYPE_MPEG2_QUANTIZATION: > elem_size = sizeof(struct v4l2_ctrl_mpeg2_quantization); > break; > + case V4L2_CTRL_TYPE_H264_SPS: > + elem_size = sizeof(struct v4l2_ctrl_h264_sps); > + break; > + case V4L2_CTRL_TYPE_H264_PPS: > + elem_size = sizeof(struct v4l2_ctrl_h264_pps); > + break; > + case V4L2_CTRL_TYPE_H264_SCALING_MATRIX: > + elem_size = sizeof(struct v4l2_ctrl_h264_scaling_matrix); > + break; > + case V4L2_CTRL_TYPE_H264_SLICE_PARAMS: > + elem_size = sizeof(struct v4l2_ctrl_h264_slice_param); > + break; > + case V4L2_CTRL_TYPE_H264_DECODE_PARAMS: > + elem_size = sizeof(struct v4l2_ctrl_h264_decode_param); > + 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 49103787d19a..aa63f1794272 100644 > --- a/drivers/media/v4l2-core/v4l2-ioctl.c > +++ b/drivers/media/v4l2-core/v4l2-ioctl.c > @@ -1309,6 +1309,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) > case V4L2_PIX_FMT_H264: descr = "H.264"; break; > case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break; > case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break; > + case V4L2_PIX_FMT_H264_SLICE: descr = "H.264 Parsed Slice"; break; > case V4L2_PIX_FMT_H263: descr = "H.263"; break; > case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break; > case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break; > diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h > index 83ce0593b275..b4ca95710d2d 100644 > --- a/include/media/v4l2-ctrls.h > +++ b/include/media/v4l2-ctrls.h > @@ -43,6 +43,11 @@ struct poll_table_struct; > * @p_char: Pointer to a string. > * @p_mpeg2_slice_params: Pointer to a MPEG2 slice parameters structure. > * @p_mpeg2_quantization: Pointer to a MPEG2 quantization data structure. > + * @p_h264_sps: Pointer to a struct v4l2_ctrl_h264_sps. > + * @p_h264_pps: Pointer to a struct v4l2_ctrl_h264_pps. > + * @p_h264_scal_mtrx: 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: Pointer to a compound value. > */ > union v4l2_ctrl_ptr { > @@ -54,6 +59,11 @@ union v4l2_ctrl_ptr { > char *p_char; > struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params; > struct v4l2_ctrl_mpeg2_quantization *p_mpeg2_quantization; > + struct v4l2_ctrl_h264_sps *p_h264_sps; > + struct v4l2_ctrl_h264_pps *p_h264_pps; > + struct v4l2_ctrl_h264_scaling_matrix *p_h264_scal_mtrx; > + struct v4l2_ctrl_h264_slice_param *p_h264_slice_param; > + struct v4l2_ctrl_h264_decode_param *p_h264_decode_param; > void *p; > }; > > diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h > index 76f5322ec543..fb1469ec1b90 100644 > --- a/include/uapi/linux/v4l2-controls.h > +++ b/include/uapi/linux/v4l2-controls.h > @@ -50,6 +50,8 @@ > #ifndef __LINUX_V4L2_CONTROLS_H > #define __LINUX_V4L2_CONTROLS_H > > +#include <linux/types.h> > + > /* Control classes */ > #define V4L2_CTRL_CLASS_USER 0x00980000 /* Old-style 'user' controls */ > #define V4L2_CTRL_CLASS_MPEG 0x00990000 /* MPEG-compression controls */ > @@ -534,6 +536,12 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type { > }; > #define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER (V4L2_CID_MPEG_BASE+381) > #define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER_QP (V4L2_CID_MPEG_BASE+382) > +#define V4L2_CID_MPEG_VIDEO_H264_SPS (V4L2_CID_MPEG_BASE+383) > +#define V4L2_CID_MPEG_VIDEO_H264_PPS (V4L2_CID_MPEG_BASE+384) > +#define V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX (V4L2_CID_MPEG_BASE+385) > +#define V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS (V4L2_CID_MPEG_BASE+386) > +#define V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS (V4L2_CID_MPEG_BASE+387) > + > #define V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP (V4L2_CID_MPEG_BASE+400) > #define V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP (V4L2_CID_MPEG_BASE+401) > #define V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP (V4L2_CID_MPEG_BASE+402) > @@ -1156,4 +1164,162 @@ struct v4l2_ctrl_mpeg2_quantization { > __u8 chroma_non_intra_quantiser_matrix[64]; > }; > > +/* Compounds controls */ > + > +#define V4L2_H264_SPS_CONSTRAINT_SET0_FLAG 0x01 > +#define V4L2_H264_SPS_CONSTRAINT_SET1_FLAG 0x02 > +#define V4L2_H264_SPS_CONSTRAINT_SET2_FLAG 0x04 > +#define V4L2_H264_SPS_CONSTRAINT_SET3_FLAG 0x08 > +#define V4L2_H264_SPS_CONSTRAINT_SET4_FLAG 0x10 > +#define V4L2_H264_SPS_CONSTRAINT_SET5_FLAG 0x20 > + > +#define V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE 0x01 > +#define V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS 0x02 > +#define V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO 0x04 > +#define V4L2_H264_SPS_FLAG_GAPS_IN_FRAME_NUM_VALUE_ALLOWED 0x08 > +#define V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY 0x10 > +#define V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD 0x20 > +#define V4L2_H264_SPS_FLAG_DIRECT_8X8_INFERENCE 0x40 > + > +struct v4l2_ctrl_h264_sps { > + __u8 profile_idc; > + __u8 constraint_set_flags; > + __u8 level_idc; > + __u8 seq_parameter_set_id; > + __u8 chroma_format_idc; > + __u8 bit_depth_luma_minus8; > + __u8 bit_depth_chroma_minus8; > + __u8 log2_max_frame_num_minus4; > + __u8 pic_order_cnt_type; > + __u8 log2_max_pic_order_cnt_lsb_minus4; > + __u8 max_num_ref_frames; > + __u8 num_ref_frames_in_pic_order_cnt_cycle; > + __s32 offset_for_ref_frame[255]; > + __s32 offset_for_non_ref_pic; > + __s32 offset_for_top_to_bottom_field; > + __u16 pic_width_in_mbs_minus1; > + __u16 pic_height_in_map_units_minus1; > + __u8 flags; > +}; > + > +#define V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE 0x0001 > +#define V4L2_H264_PPS_FLAG_BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT 0x0002 > +#define V4L2_H264_PPS_FLAG_WEIGHTED_PRED 0x0004 > +#define V4L2_H264_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT 0x0008 > +#define V4L2_H264_PPS_FLAG_CONSTRAINED_INTRA_PRED 0x0010 > +#define V4L2_H264_PPS_FLAG_REDUNDANT_PIC_CNT_PRESENT 0x0020 > +#define V4L2_H264_PPS_FLAG_TRANSFORM_8X8_MODE 0x0040 > +#define V4L2_H264_PPS_FLAG_PIC_SCALING_MATRIX_PRESENT 0x0080 > + > +struct v4l2_ctrl_h264_pps { > + __u8 pic_parameter_set_id; > + __u8 seq_parameter_set_id; > + __u8 num_slice_groups_minus1; > + __u8 num_ref_idx_l0_default_active_minus1; > + __u8 num_ref_idx_l1_default_active_minus1; > + __u8 weighted_bipred_idc; > + __s8 pic_init_qp_minus26; > + __s8 pic_init_qs_minus26; > + __s8 chroma_qp_index_offset; > + __s8 second_chroma_qp_index_offset; > + __u8 flags; > +}; > + > +struct v4l2_ctrl_h264_scaling_matrix { > + __u8 scaling_list_4x4[6][16]; > + __u8 scaling_list_8x8[6][64]; > +}; I wonder which decoder want this. > + > +struct v4l2_h264_weight_factors { > + __s8 luma_weight[32]; > + __s8 luma_offset[32]; > + __s8 chroma_weight[32][2]; > + __s8 chroma_offset[32][2]; > +}; > + > +struct v4l2_h264_pred_weight_table { > + __u8 luma_log2_weight_denom; > + __u8 chroma_log2_weight_denom; > + struct v4l2_h264_weight_factors weight_factors[2]; > +}; > + > +#define V4L2_H264_SLICE_TYPE_P 0 > +#define V4L2_H264_SLICE_TYPE_B 1 > +#define V4L2_H264_SLICE_TYPE_I 2 > +#define V4L2_H264_SLICE_TYPE_SP 3 > +#define V4L2_H264_SLICE_TYPE_SI 4 > + > +#define V4L2_H264_SLICE_FLAG_FIELD_PIC 0x01 > +#define V4L2_H264_SLICE_FLAG_BOTTOM_FIELD 0x02 > +#define V4L2_H264_SLICE_FLAG_DIRECT_SPATIAL_MV_PRED 0x04 > +#define V4L2_H264_SLICE_FLAG_SP_FOR_SWITCH 0x08 > + > +struct v4l2_ctrl_h264_slice_param { > + /* Size in bytes, including header */ > + __u32 size; > + /* Offset in bits to slice_data() from the beginning of this slice. */ > + __u32 header_bit_size; > + > + __u16 first_mb_in_slice; > + __u8 slice_type; > + __u8 pic_parameter_set_id; > + __u8 colour_plane_id; > + __u16 frame_num; > + __u16 idr_pic_id; > + __u16 pic_order_cnt_lsb; > + __s32 delta_pic_order_cnt_bottom; > + __s32 delta_pic_order_cnt0; > + __s32 delta_pic_order_cnt1; > + __u8 redundant_pic_cnt; > + > + struct v4l2_h264_pred_weight_table pred_weight_table; > + /* Size in bits of dec_ref_pic_marking() syntax element. */ > + __u32 dec_ref_pic_marking_bit_size; > + /* Size in bits of pic order count syntax. */ > + __u32 pic_order_cnt_bit_size; > + > + __u8 cabac_init_idc; > + __s8 slice_qp_delta; > + __s8 slice_qs_delta; > + __u8 disable_deblocking_filter_idc; > + __s8 slice_alpha_c0_offset_div2; > + __s8 slice_beta_offset_div2; > + __u32 slice_group_change_cycle; > + > + __u8 num_ref_idx_l0_active_minus1; > + __u8 num_ref_idx_l1_active_minus1; > + /* Entries on each list are indices > + * into v4l2_ctrl_h264_decode_param.dpb[]. */ > + __u8 ref_pic_list0[32]; > + __u8 ref_pic_list1[32]; > + > + __u8 flags; > +}; > + We need some addtional properties or the Rockchip won't work. 1. u16 idr_pic_id for identifies IDR (instantaneous decoding refresh) picture 2. u16 ref_pic_mk_len for length of decoded reference picture marking bits 3. u8 poc_length for length of picture order count field in stream The last two are used for the hardware to skip a part stream. > +#define V4L2_H264_DPB_ENTRY_FLAG_VALID 0x01 > +#define V4L2_H264_DPB_ENTRY_FLAG_ACTIVE 0x02 > +#define V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM 0x04 > + > +struct v4l2_h264_dpb_entry { > + __u32 tag; > + __u16 frame_num; > + __u16 pic_num; Although the long term reference would use picture order count and short term for frame num, but only one of them is used for a entry of a dpb. Besides, for a frame picture frame_num = pic_num * 2, and frame_num = pic_num * 2 + 1 for a filed. > + /* Note that field is indicated by v4l2_buffer.field */ > + __s32 top_field_order_cnt; > + __s32 bottom_field_order_cnt; > + __u8 flags; /* V4L2_H264_DPB_ENTRY_FLAG_* */ > +}; > + > +struct v4l2_ctrl_h264_decode_param { > + __u32 num_slices; > + __u8 idr_pic_flag; > + __u8 nal_ref_idc; > + __s32 top_field_order_cnt; > + __s32 bottom_field_order_cnt; > + __u8 ref_pic_list_p0[32]; > + __u8 ref_pic_list_b0[32]; > + __u8 ref_pic_list_b1[32]; I would prefer to keep only two list, list0 and list 1. Anyway P slice just use the list0 and B would use the both. > + struct v4l2_h264_dpb_entry dpb[16]; > +}; > + > #endif > diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h > index 173a94d2cbef..dd028e0bf306 100644 > --- a/include/uapi/linux/videodev2.h > +++ b/include/uapi/linux/videodev2.h > @@ -643,6 +643,7 @@ struct v4l2_pix_format { > #define V4L2_PIX_FMT_H264 v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */ > #define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */ > #define V4L2_PIX_FMT_H264_MVC v4l2_fourcc('M', '2', '6', '4') /* H264 MVC */ > +#define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4') /* H264 parsed slices */ > #define V4L2_PIX_FMT_H263 v4l2_fourcc('H', '2', '6', '3') /* H263 */ > #define V4L2_PIX_FMT_MPEG1 v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES */ > #define V4L2_PIX_FMT_MPEG2 v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES */ > @@ -1631,6 +1632,11 @@ struct v4l2_ext_control { > __u32 __user *p_u32; > struct v4l2_ctrl_mpeg2_slice_params __user *p_mpeg2_slice_params; > struct v4l2_ctrl_mpeg2_quantization __user *p_mpeg2_quantization; > + struct v4l2_ctrl_h264_sps __user *p_h264_sps; > + struct v4l2_ctrl_h264_pps __user *p_h264_pps; > + struct v4l2_ctrl_h264_scaling_matrix __user *p_h264_scal_mtrx; > + struct v4l2_ctrl_h264_slice_param __user *p_h264_slice_param; > + struct v4l2_ctrl_h264_decode_param __user *p_h264_decode_param; > void __user *ptr; > }; > } __attribute__ ((packed)); > @@ -1678,6 +1684,11 @@ enum v4l2_ctrl_type { > V4L2_CTRL_TYPE_U32 = 0x0102, > V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS = 0x0103, > V4L2_CTRL_TYPE_MPEG2_QUANTIZATION = 0x0104, > + V4L2_CTRL_TYPE_H264_SPS = 0x0105, > + V4L2_CTRL_TYPE_H264_PPS = 0x0106, > + V4L2_CTRL_TYPE_H264_SCALING_MATRIX = 0x0107, > + V4L2_CTRL_TYPE_H264_SLICE_PARAMS = 0x0108, > + V4L2_CTRL_TYPE_H264_DECODE_PARAMS = 0x0109, > }; > > /* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
