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Subject[PATCH v2 1/2] media: uapi: Add H264 low-level decoder API compound controls.
Date
From: Pawel Osciak <posciak@chromium.org>

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@bootlin.com>
Signed-off-by: Pawel Osciak <posciak@chromium.org>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
---
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];
+};
+
+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;
+};
+
+#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;
+ /* 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];
+ 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 */
--
2.19.1
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