[PATCH v6 10/10] media: uapi: move MPEG-2 stateless controls out of staging

Ezequiel Garcia
2021-04-26T03:37:11Z

Until now, the MPEG-2 V4L2 API was not exported as a public API,
and only defined in a private media header (media/mpeg2-ctrls.h).

After reviewing the MPEG-2 specification in detail, and reworking
the controls so they match the MPEG-2 semantics properly,
we can consider it ready.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
---
.../media/v4l/ext-ctrls-codec-stateless.rst | 214 +++++++++++++++++
.../media/v4l/ext-ctrls-codec.rst | 216 ------------------
.../media/v4l/pixfmt-compressed.rst | 10 +-
.../media/v4l/vidioc-g-ext-ctrls.rst | 12 +
drivers/media/v4l2-core/v4l2-ctrls.c | 12 +-
drivers/staging/media/hantro/hantro_drv.c | 6 +-
.../media/hantro/hantro_g1_mpeg2_dec.c | 6 +-
.../media/hantro/rk3399_vpu_hw_mpeg2_dec.c | 6 +-
drivers/staging/media/sunxi/cedrus/cedrus.c | 6 +-
.../staging/media/sunxi/cedrus/cedrus_dec.c | 6 +-
include/media/mpeg2-ctrls.h | 126 ----------
include/media/v4l2-ctrls.h | 1 -
include/uapi/linux/v4l2-controls.h | 112 +++++++++
include/uapi/linux/videodev2.h | 3 +
14 files changed, 367 insertions(+), 369 deletions(-)
delete mode 100644 include/media/mpeg2-ctrls.h

diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
index 3fc04daa9ffb..eaaf96f5dde6 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
@@ -1244,3 +1244,217 @@ FWHT Flags
* - __u8
- ``padding[3]``
- Applications and drivers must set this to zero.
+
+.. _v4l2-codec-stateless-mpeg2:
+
+``V4L2_CID_STATELESS_MPEG2_SEQUENCE (struct)``
+ Specifies the sequence parameters (as extracted from the bitstream) for the
+ associated MPEG-2 slice data. This includes fields matching the syntax
+ elements from the sequence header and sequence extension parts of the
+ bitstream as specified by :ref:`mpeg2part2`.
+
+.. c:type:: v4l2_ctrl_mpeg2_sequence
+
+.. raw:: latex
+
+ \small
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.4cm}|p{6.5cm}|p{9.4cm}|
+
+.. flat-table:: struct v4l2_ctrl_mpeg2_sequence
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u16
+ - ``horizontal_size``
+ - The width of the displayable part of the frame's luminance component.
+ * - __u16
+ - ``vertical_size``
+ - The height of the displayable part of the frame's luminance component.
+ * - __u32
+ - ``vbv_buffer_size``
+ - Used to calculate the required size of the video buffering verifier,
+ defined (in bits) as: 16 * 1024 * vbv_buffer_size.
+ * - __u16
+ - ``profile_and_level_indication``
+ - The current profile and level indication as extracted from the
+ bitstream.
+ * - __u8
+ - ``chroma_format``
+ - The chrominance sub-sampling format (1: 4:2:0, 2: 4:2:2, 3: 4:4:4).
+ * - __u8
+ - ``flags``
+ - See :ref:`MPEG-2 Sequence Flags <mpeg2_sequence_flags>`.
+
+.. _mpeg2_sequence_flags:
+
+``MPEG-2 Sequence Flags``
+
+.. cssclass:: longtable
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE``
+ - 0x00000001
+ - Indication that all the frames for the sequence are progressive instead
+ of interlaced.
+
+.. raw:: latex
+
+ \normalsize
+
+``V4L2_CID_STATELESS_MPEG2_PICTURE (struct)``
+ Specifies the picture parameters (as extracted from the bitstream) for the
+ associated MPEG-2 slice data. This includes fields matching the syntax
+ elements from the picture header and picture coding extension parts of the
+ bitstream as specified by :ref:`mpeg2part2`.
+
+.. c:type:: v4l2_ctrl_mpeg2_picture
+
+.. raw:: latex
+
+ \small
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.0cm}|p{5.6cm}|p{10.7cm}|
+
+.. flat-table:: struct v4l2_ctrl_mpeg2_picture
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u64
+ - ``backward_ref_ts``
+ - Timestamp of the V4L2 capture buffer to use as backward 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.
+ * - __u64
+ - ``forward_ref_ts``
+ - Timestamp for the V4L2 capture buffer to use as forward reference, used
+ with B-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.
+ * - __u32
+ - ``flags``
+ - See :ref:`MPEG-2 Picture Flags <mpeg2_picture_flags>`.
+ * - __u8
+ - ``f_code[2][2]``
+ - Motion vector codes.
+ * - __u8
+ - ``picture_coding_type``
+ - Picture coding type for the frame covered by the current slice
+ (V4L2_MPEG2_PICTURE_CODING_TYPE_I, V4L2_MPEG2_PICTURE_CODING_TYPE_P or
+ V4L2_MPEG2_PICTURE_CODING_TYPE_B).
+ * - __u8
+ - ``picture_structure``
+ - Picture structure (1: interlaced top field, 2: interlaced bottom field,
+ 3: progressive frame).
+ * - __u8
+ - ``intra_dc_precision``
+ - Precision of Discrete Cosine transform (0: 8 bits precision,
+ 1: 9 bits precision, 2: 10 bits precision, 3: 11 bits precision).
+ * - __u8
+ - ``reserved``
+ - Applications and drivers must set this to zero.
+
+.. _mpeg2_picture_flags:
+
+``MPEG-2 Picture Flags``
+
+.. cssclass:: longtable
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST``
+ - 0x00000001
+ - If set and it's an interlaced stream, top field is output first.
+ * - ``V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT``
+ - 0x00000002
+ - If set only frame-DCT and frame prediction are used.
+ * - ``V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV``
+ - 0x00000004
+ - If set motion vectors are coded for intra macroblocks.
+ * - ``V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE``
+ - 0x00000008
+ - This flag affects the inverse quantization process.
+ * - ``V4L2_MPEG2_PIC_FLAG_INTRA_VLC``
+ - 0x00000010
+ - This flag affects the decoding of transform coefficient data.
+ * - ``V4L2_MPEG2_PIC_FLAG_ALT_SCAN``
+ - 0x00000020
+ - This flag affects the decoding of transform coefficient data.
+ * - ``V4L2_MPEG2_PIC_FLAG_REPEAT_FIRST``
+ - 0x00000040
+ - This flag affects the decoding process of progressive frames.
+ * - ``V4L2_MPEG2_PIC_FLAG_PROGRESSIVE``
+ - 0x00000080
+ - Indicates whether the current frame is progressive.
+
+.. raw:: latex
+
+ \normalsize
+
+``V4L2_CID_STATELESS_MPEG2_QUANTISATION (struct)``
+ Specifies quantisation matrices, in zigzag scanning order, for the
+ associated MPEG-2 slice data. This control is initialized by the kernel
+ to the matrices default values. If a bitstream transmits a user-defined
+ quantisation matrices load, applications are expected to use this control.
+ Applications are also expected to set the control loading the default
+ values, if the quantisation matrices need to be reset, for instance on a
+ sequence header. This process is specified by section 6.3.7.
+ "Quant matrix extension" of the specification.
+
+.. c:type:: v4l2_ctrl_mpeg2_quantisation
+
+.. tabularcolumns:: |p{0.8cm}|p{8.0cm}|p{8.5cm}|
+
+.. cssclass:: longtable
+
+.. raw:: latex
+
+ \small
+
+.. flat-table:: struct v4l2_ctrl_mpeg2_quantisation
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u8
+ - ``intra_quantiser_matrix[64]``
+ - The quantisation matrix coefficients for intra-coded frames, in zigzag
+ scanning order. It is relevant for both luma and chroma components,
+ although it can be superseded by the chroma-specific matrix for
+ non-4:2:0 YUV formats.
+ * - __u8
+ - ``non_intra_quantiser_matrix[64]``
+ - The quantisation matrix coefficients for non-intra-coded frames, in
+ zigzag scanning order. It is relevant for both luma and chroma
+ components, although it can be superseded by the chroma-specific matrix
+ for non-4:2:0 YUV formats.
+ * - __u8
+ - ``chroma_intra_quantiser_matrix[64]``
+ - The quantisation matrix coefficients for the chominance component of
+ intra-coded frames, in zigzag scanning order. Only relevant for
+ non-4:2:0 YUV formats.
+ * - __u8
+ - ``chroma_non_intra_quantiser_matrix[64]``
+ - The quantisation matrix coefficients for the chrominance component of
+ non-intra-coded frames, in zigzag scanning order. Only relevant for
+ non-4:2:0 YUV formats.
+
+.. raw:: latex
+
+ \normalsize
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index af12c869e304..a580ea953c4e 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -1606,222 +1606,6 @@ enum v4l2_mpeg_video_h264_hierarchical_coding_type -
``V4L2_CID_MPEG_VIDEO_H264_HIER_CODING_L6_BR (integer)``
Indicates bit rate (bps) for hierarchical coding layer 6 for H264 encoder.

-.. _v4l2-mpeg-mpeg2:
-
-``V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE (struct)``
- Specifies the sequence parameters (as extracted from the bitstream) for the
- associated MPEG-2 slice data. This includes fields matching the syntax
- elements from the sequence header and sequence extension parts of the
- bitstream as specified by :ref:`mpeg2part2`.
-
- .. note::
-
- This compound control is not yet part of the public kernel API and
- it is expected to change.
-
-.. c:type:: v4l2_ctrl_mpeg2_sequence
-
-.. cssclass:: longtable
-
-.. tabularcolumns:: |p{1.4cm}|p{6.5cm}|p{9.4cm}|
-
-.. flat-table:: struct v4l2_ctrl_mpeg2_sequence
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - __u16
- - ``horizontal_size``
- - The width of the displayable part of the frame's luminance component.
- * - __u16
- - ``vertical_size``
- - The height of the displayable part of the frame's luminance component.
- * - __u32
- - ``vbv_buffer_size``
- - Used to calculate the required size of the video buffering verifier,
- defined (in bits) as: 16 * 1024 * vbv_buffer_size.
- * - __u16
- - ``profile_and_level_indication``
- - The current profile and level indication as extracted from the
- bitstream.
- * - __u8
- - ``chroma_format``
- - The chrominance sub-sampling format (1: 4:2:0, 2: 4:2:2, 3: 4:4:4).
- * - __u8
- - ``flags``
- - See :ref:`MPEG-2 Sequence Flags <mpeg2_sequence_flags>`.
-
-.. _mpeg2_sequence_flags:
-
-``MPEG-2 Sequence Flags``
-
-.. cssclass:: longtable
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - ``V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE``
- - 0x00000001
- - Indication that all the frames for the sequence are progressive instead
- of interlaced.
-
-``V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE (struct)``
- Specifies the picture parameters (as extracted from the bitstream) for the
- associated MPEG-2 slice data. This includes fields matching the syntax
- elements from the picture header and picture coding extension parts of the
- bitstream as specified by :ref:`mpeg2part2`.
-
- .. note::
-
- This compound control is not yet part of the public kernel API and
- it is expected to change.
-
-.. c:type:: v4l2_ctrl_mpeg2_picture
-
-.. raw:: latex
-
- \small
-
-.. cssclass:: longtable
-
-.. tabularcolumns:: |p{1.0cm}|p{5.6cm}|p{10.7cm}|
-
-.. flat-table:: struct v4l2_ctrl_mpeg2_picture
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - __u64
- - ``backward_ref_ts``
- - Timestamp of the V4L2 capture buffer to use as backward 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.
- * - __u64
- - ``forward_ref_ts``
- - Timestamp for the V4L2 capture buffer to use as forward reference, used
- with B-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.
- * - __u32
- - ``flags``
- - See :ref:`MPEG-2 Picture Flags <mpeg2_picture_flags>`.
- * - __u8
- - ``f_code[2][2]``
- - Motion vector codes.
- * - __u8
- - ``picture_coding_type``
- - Picture coding type for the frame covered by the current slice
- (V4L2_MPEG2_PICTURE_CODING_TYPE_I, V4L2_MPEG2_PICTURE_CODING_TYPE_P or
- V4L2_MPEG2_PICTURE_CODING_TYPE_B).
- * - __u8
- - ``picture_structure``
- - Picture structure (1: interlaced top field, 2: interlaced bottom field,
- 3: progressive frame).
- * - __u8
- - ``intra_dc_precision``
- - Precision of Discrete Cosine transform (0: 8 bits precision,
- 1: 9 bits precision, 2: 10 bits precision, 3: 11 bits precision).
- * - __u8
- - ``reserved``
- - Applications and drivers must set this to zero.
-
-
-.. _mpeg2_picture_flags:
-
-``MPEG-2 Picture Flags``
-
-.. cssclass:: longtable
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - ``V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST``
- - 0x00000001
- - If set and it's an interlaced stream, top field is output first.
- * - ``V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT``
- - 0x00000002
- - If set only frame-DCT and frame prediction are used.
- * - ``V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV``
- - 0x00000004
- - If set motion vectors are coded for intra macroblocks.
- * - ``V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE``
- - 0x00000008
- - This flag affects the inverse quantization process.
- * - ``V4L2_MPEG2_PIC_FLAG_INTRA_VLC``
- - 0x00000010
- - This flag affects the decoding of transform coefficient data.
- * - ``V4L2_MPEG2_PIC_FLAG_ALT_SCAN``
- - 0x00000020
- - This flag affects the decoding of transform coefficient data.
- * - ``V4L2_MPEG2_PIC_FLAG_REPEAT_FIRST``
- - 0x00000040
- - This flag affects the decoding process of progressive frames.
- * - ``V4L2_MPEG2_PIC_FLAG_PROGRESSIVE``
- - 0x00000080
- - Indicates whether the current frame is progressive.
-
-.. raw:: latex
-
- \normalsize
-
-``V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION (struct)``
- Specifies quantisation matrices (as extracted from the bitstream) for the
- associated MPEG-2 slice data.
-
- .. note::
-
- This compound control is not yet part of the public kernel API and
- it is expected to change.
-
-.. c:type:: v4l2_ctrl_mpeg2_quantisation
-
-.. tabularcolumns:: |p{0.8cm}|p{8.0cm}|p{8.5cm}|
-
-.. cssclass:: longtable
-
-.. raw:: latex
-
- \small
-
-.. flat-table:: struct v4l2_ctrl_mpeg2_quantisation
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - __u8
- - ``intra_quantiser_matrix[64]``
- - The quantisation matrix coefficients for intra-coded frames, in zigzag
- scanning order. It is relevant for both luma and chroma components,
- although it can be superseded by the chroma-specific matrix for
- non-4:2:0 YUV formats.
- * - __u8
- - ``non_intra_quantiser_matrix[64]``
- - The quantisation matrix coefficients for non-intra-coded frames, in
- zigzag scanning order. It is relevant for both luma and chroma
- components, although it can be superseded by the chroma-specific matrix
- for non-4:2:0 YUV formats.
- * - __u8
- - ``chroma_intra_quantiser_matrix[64]``
- - The quantisation matrix coefficients for the chominance component of
- intra-coded frames, in zigzag scanning order. Only relevant for
- non-4:2:0 YUV formats.
- * - __u8
- - ``chroma_non_intra_quantiser_matrix[64]``
- - The quantisation matrix coefficients for the chrominance component of
- non-intra-coded frames, in zigzag scanning order. Only relevant for
- non-4:2:0 YUV formats.
-
-.. raw:: latex
-
- \normalsize
-
``V4L2_CID_FWHT_I_FRAME_QP (integer)``
Quantization parameter for an I frame for FWHT. Valid range: from 1
to 31.
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
index 6c10a062adac..0ede39907ee2 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
@@ -112,13 +112,13 @@ Compressed Formats
- 'MG2S'
- MPEG-2 parsed slice data, as extracted from the MPEG-2 bitstream.
This format is adapted for stateless video decoders that implement a
- MPEG-2 pipeline (using the :ref:`mem2mem` and :ref:`media-request-api`).
+ MPEG-2 pipeline with the :ref:`stateless_decoder`.
Metadata associated with the frame to decode is required to be passed
- through the ``V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE`` and
- ``V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE`` controls.
+ through the ``V4L2_CID_STATELESS_MPEG2_SEQUENCE`` and
+ ``V4L2_CID_STATELESS_MPEG2_PICTURE`` controls.
Quantisation matrices can optionally be specified through the
- ``V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION`` control.
- See the :ref:`associated Codec Control IDs <v4l2-mpeg-mpeg2>`.
+ ``V4L2_CID_STATELESS_MPEG2_QUANTISATION`` control.
+ See the :ref:`associated Codec Control IDs <v4l2-codec-stateless-mpeg2>`.
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
diff --git a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
index 3ba22983d21f..2d6bc8d94380 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
@@ -221,6 +221,18 @@ still cause this situation.
- ``p_vp8_frame``
- A pointer to a struct :c:type:`v4l2_ctrl_vp8_frame`. Valid if this control is
of type ``V4L2_CTRL_TYPE_VP8_FRAME``.
+ * - struct :c:type:`v4l2_ctrl_mpeg2_sequence` *
+ - ``p_mpeg2_sequence``
+ - A pointer to a struct :c:type:`v4l2_ctrl_mpeg2_sequence`. Valid if this control is
+ of type ``V4L2_CTRL_TYPE_MPEG2_SEQUENCE``.
+ * - struct :c:type:`v4l2_ctrl_mpeg2_picture` *
+ - ``p_mpeg2_picture``
+ - A pointer to a struct :c:type:`v4l2_ctrl_mpeg2_picture`. Valid if this control is
+ of type ``V4L2_CTRL_TYPE_MPEG2_PICTURE``.
+ * - struct :c:type:`v4l2_ctrl_mpeg2_quantisation` *
+ - ``p_mpeg2_quantisation``
+ - A pointer to a struct :c:type:`v4l2_ctrl_mpeg2_quantisation`. Valid if this control is
+ of type ``V4L2_CTRL_TYPE_MPEG2_QUANTISATION``.
* - struct :c:type:`v4l2_ctrl_hdr10_cll_info` *
- ``p_hdr10_cll``
- A pointer to a struct :c:type:`v4l2_ctrl_hdr10_cll_info`. Valid if this control is
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index a693ff8dc3dc..d4e2c7318ee6 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -977,9 +977,6 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_MPEG_VIDEO_LTR_COUNT: return "LTR Count";
case V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX: return "Frame LTR Index";
case V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES: return "Use LTR Frames";
- case V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE: return "MPEG-2 Sequence Header";
- case V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE: return "MPEG-2 Picture Header";
- case V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION: return "MPEG-2 Quantisation Matrices";
case V4L2_CID_FWHT_I_FRAME_QP: return "FWHT I-Frame QP Value";
case V4L2_CID_FWHT_P_FRAME_QP: return "FWHT P-Frame QP Value";

@@ -1228,6 +1225,9 @@ const char *v4l2_ctrl_get_name(u32 id)
case V4L2_CID_STATELESS_H264_DECODE_PARAMS: return "H264 Decode Parameters";
case V4L2_CID_STATELESS_FWHT_PARAMS: return "FWHT Stateless Parameters";
case V4L2_CID_STATELESS_VP8_FRAME: return "VP8 Frame Parameters";
+ case V4L2_CID_STATELESS_MPEG2_SEQUENCE: return "MPEG-2 Sequence Header";
+ case V4L2_CID_STATELESS_MPEG2_PICTURE: return "MPEG-2 Picture Header";
+ case V4L2_CID_STATELESS_MPEG2_QUANTISATION: return "MPEG-2 Quantisation Matrices";

/* Colorimetry controls */
/* Keep the order of the 'case's the same as in v4l2-controls.h! */
@@ -1500,13 +1500,13 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_RDS_TX_ALT_FREQS:
*type = V4L2_CTRL_TYPE_U32;
break;
- case V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE:
+ case V4L2_CID_STATELESS_MPEG2_SEQUENCE:
*type = V4L2_CTRL_TYPE_MPEG2_SEQUENCE;
break;
- case V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE:
+ case V4L2_CID_STATELESS_MPEG2_PICTURE:
*type = V4L2_CTRL_TYPE_MPEG2_PICTURE;
break;
- case V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION:
+ case V4L2_CID_STATELESS_MPEG2_QUANTISATION:
*type = V4L2_CTRL_TYPE_MPEG2_QUANTISATION;
break;
case V4L2_CID_STATELESS_FWHT_PARAMS:
diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index f5fa7e0940c4..b48552bddb3a 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -289,17 +289,17 @@ static const struct hantro_ctrl controls[] = {
}, {
.codec = HANTRO_MPEG2_DECODER,
.cfg = {
- .id = V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE,
+ .id = V4L2_CID_STATELESS_MPEG2_SEQUENCE,
},
}, {
.codec = HANTRO_MPEG2_DECODER,
.cfg = {
- .id = V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE,
+ .id = V4L2_CID_STATELESS_MPEG2_PICTURE,
},
}, {
.codec = HANTRO_MPEG2_DECODER,
.cfg = {
- .id = V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION,
+ .id = V4L2_CID_STATELESS_MPEG2_QUANTISATION,
},
}, {
.codec = HANTRO_VP8_DECODER,
diff --git a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
index 6d89cae7df45..f565e37e397a 100644
--- a/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
+++ b/drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
@@ -83,7 +83,7 @@ hantro_g1_mpeg2_dec_set_quantisation(struct hantro_dev *vpu,
{
struct v4l2_ctrl_mpeg2_quantisation *q;

- q = hantro_get_ctrl(ctx, V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION);
+ q = hantro_get_ctrl(ctx, V4L2_CID_STATELESS_MPEG2_QUANTISATION);
hantro_mpeg2_dec_copy_qtable(ctx->mpeg2_dec.qtable.cpu, q);
vdpu_write_relaxed(vpu, ctx->mpeg2_dec.qtable.dma, G1_REG_QTABLE_BASE);
}
@@ -160,9 +160,9 @@ void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx)
hantro_start_prepare_run(ctx);

seq = hantro_get_ctrl(ctx,
- V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE);
+ V4L2_CID_STATELESS_MPEG2_SEQUENCE);
pic = hantro_get_ctrl(ctx,
- V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE);
+ V4L2_CID_STATELESS_MPEG2_PICTURE);

reg = G1_REG_DEC_AXI_RD_ID(0) |
G1_REG_DEC_TIMEOUT_E(1) |
diff --git a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
index d16d76760278..2527dce7eb18 100644
--- a/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
+++ b/drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
@@ -85,7 +85,7 @@ rk3399_vpu_mpeg2_dec_set_quantisation(struct hantro_dev *vpu,
{
struct v4l2_ctrl_mpeg2_quantisation *q;

- q = hantro_get_ctrl(ctx, V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION);
+ q = hantro_get_ctrl(ctx, V4L2_CID_STATELESS_MPEG2_QUANTISATION);
hantro_mpeg2_dec_copy_qtable(ctx->mpeg2_dec.qtable.cpu, q);
vdpu_write_relaxed(vpu, ctx->mpeg2_dec.qtable.dma, VDPU_REG_QTABLE_BASE);
}
@@ -162,9 +162,9 @@ void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx)
hantro_start_prepare_run(ctx);

seq = hantro_get_ctrl(ctx,
- V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE);
+ V4L2_CID_STATELESS_MPEG2_SEQUENCE);
pic = hantro_get_ctrl(ctx,
- V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE);
+ V4L2_CID_STATELESS_MPEG2_PICTURE);

reg = VDPU_REG_DEC_ADV_PRE_DIS(0) |
VDPU_REG_DEC_SCMD_DIS(0) |
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.c b/drivers/staging/media/sunxi/cedrus/cedrus.c
index 4430c8fa2cc7..fa348c09f844 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.c
@@ -31,19 +31,19 @@
static const struct cedrus_control cedrus_controls[] = {
{
.cfg = {
- .id = V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE,
+ .id = V4L2_CID_STATELESS_MPEG2_SEQUENCE,
},
.codec = CEDRUS_CODEC_MPEG2,
},
{
.cfg = {
- .id = V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE,
+ .id = V4L2_CID_STATELESS_MPEG2_PICTURE,
},
.codec = CEDRUS_CODEC_MPEG2,
},
{
.cfg = {
- .id = V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION,
+ .id = V4L2_CID_STATELESS_MPEG2_QUANTISATION,
},
.codec = CEDRUS_CODEC_MPEG2,
},
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
index e98185c1f5a7..97e410d92506 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
@@ -41,11 +41,11 @@ void cedrus_device_run(void *priv)
switch (ctx->src_fmt.pixelformat) {
case V4L2_PIX_FMT_MPEG2_SLICE:
run.mpeg2.sequence = cedrus_find_control_data(ctx,
- V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE);
+ V4L2_CID_STATELESS_MPEG2_SEQUENCE);
run.mpeg2.picture = cedrus_find_control_data(ctx,
- V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE);
+ V4L2_CID_STATELESS_MPEG2_PICTURE);
run.mpeg2.quantisation = cedrus_find_control_data(ctx,
- V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION);
+ V4L2_CID_STATELESS_MPEG2_QUANTISATION);
break;

case V4L2_PIX_FMT_H264_SLICE:
diff --git a/include/media/mpeg2-ctrls.h b/include/media/mpeg2-ctrls.h
deleted file mode 100644
index c4cf1af5b73b..000000000000
--- a/include/media/mpeg2-ctrls.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * These are the MPEG2 state controls for use with stateless MPEG-2
- * 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 _MPEG2_CTRLS_H_
-#define _MPEG2_CTRLS_H_
-
-#define V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION (V4L2_CID_CODEC_BASE+251)
-#define V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE (V4L2_CID_CODEC_BASE+252)
-#define V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE (V4L2_CID_CODEC_BASE+253)
-
-/* enum v4l2_ctrl_type type values */
-#define V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE 0x0001
-
-/**
- * struct v4l2_ctrl_mpeg2_sequence - MPEG-2 sequence header
- *
- * All the members on this structure match the sequence header and sequence
- * extension syntaxes as specified by the MPEG-2 specification.
- *
- * Fields horizontal_size, vertical_size and vbv_buffer_size are a
- * combination of respective _value and extension syntax elements,
- * as described in section 6.3.3 "Sequence header".
- *
- * @horizontal_size: combination of elements horizontal_size_value and
- * horizontal_size_extension.
- * @vertical_size: combination of elements vertical_size_value and
- * vertical_size_extension.
- * @vbv_buffer_size: combination of elements vbv_buffer_size_value and
- * vbv_buffer_size_extension.
- * @profile_and_level_indication: see MPEG-2 specification.
- * @chroma_format: see MPEG-2 specification.
- * @flags: see V4L2_MPEG2_SEQ_FLAG_{}.
- */
-struct v4l2_ctrl_mpeg2_sequence {
- __u16 horizontal_size;
- __u16 vertical_size;
- __u32 vbv_buffer_size;
- __u16 profile_and_level_indication;
- __u8 chroma_format;
- __u8 flags;
-};
-
-#define V4L2_MPEG2_PIC_CODING_TYPE_I 1
-#define V4L2_MPEG2_PIC_CODING_TYPE_P 2
-#define V4L2_MPEG2_PIC_CODING_TYPE_B 3
-#define V4L2_MPEG2_PIC_CODING_TYPE_D 4
-
-#define V4L2_MPEG2_PIC_TOP_FIELD 0x1
-#define V4L2_MPEG2_PIC_BOTTOM_FIELD 0x2
-#define V4L2_MPEG2_PIC_FRAME 0x3
-
-#define V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST 0x0001
-#define V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT 0x0002
-#define V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV 0x0004
-#define V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE 0x0008
-#define V4L2_MPEG2_PIC_FLAG_INTRA_VLC 0x0010
-#define V4L2_MPEG2_PIC_FLAG_ALT_SCAN 0x0020
-#define V4L2_MPEG2_PIC_FLAG_REPEAT_FIRST 0x0040
-#define V4L2_MPEG2_PIC_FLAG_PROGRESSIVE 0x0080
-
-/**
- * struct v4l2_ctrl_mpeg2_picture - MPEG-2 picture header
- *
- * All the members on this structure match the picture header and picture
- * coding extension syntaxes as specified by the MPEG-2 specification.
- *
- * @backward_ref_ts: timestamp of the V4L2 capture buffer to use as
- * reference for backward prediction.
- * @forward_ref_ts: timestamp of the V4L2 capture buffer to use as
- * reference for forward prediction. These timestamp refers to the
- * timestamp field in struct v4l2_buffer. Use v4l2_timeval_to_ns()
- * to convert the struct timeval to a __u64.
- * @flags: see V4L2_MPEG2_PIC_FLAG_{}.
- * @f_code[2][2]: see MPEG-2 specification.
- * @picture_coding_type: see MPEG-2 specification.
- * @picture_structure: see V4L2_MPEG2_PIC_{}_FIELD.
- * @intra_dc_precision: see MPEG-2 specification.
- * @reserved: padding field. Should be zeroed by applications.
- */
-struct v4l2_ctrl_mpeg2_picture {
- __u64 backward_ref_ts;
- __u64 forward_ref_ts;
- __u32 flags;
- __u8 f_code[2][2];
- __u8 picture_coding_type;
- __u8 picture_structure;
- __u8 intra_dc_precision;
- __u8 reserved;
-};
-
-/**
- * struct v4l2_ctrl_mpeg2_quantisation - MPEG-2 quantisation
- *
- * Quantization matrices as specified by section 6.3.7
- * "Quant matrix extension".
- *
- * @intra_quantiser_matrix: The quantisation matrix coefficients
- * for intra-coded frames, in zigzag scanning order. It is relevant
- * for both luma and chroma components, although it can be superseded
- * by the chroma-specific matrix for non-4:2:0 YUV formats.
- * @non_intra_quantiser_matrix: The quantisation matrix coefficients
- * for non-intra-coded frames, in zigzag scanning order. It is relevant
- * for both luma and chroma components, although it can be superseded
- * by the chroma-specific matrix for non-4:2:0 YUV formats.
- * @chroma_intra_quantiser_matrix: The quantisation matrix coefficients
- * for the chominance component of intra-coded frames, in zigzag scanning
- * order. Only relevant for 4:2:2 and 4:4:4 YUV formats.
- * @chroma_non_intra_quantiser_matrix: The quantisation matrix coefficients
- * for the chrominance component of non-intra-coded frames, in zigzag scanning
- * order. Only relevant for 4:2:2 and 4:4:4 YUV formats.
- */
-struct v4l2_ctrl_mpeg2_quantisation {
- __u8 intra_quantiser_matrix[64];
- __u8 non_intra_quantiser_matrix[64];
- __u8 chroma_intra_quantiser_matrix[64];
- __u8 chroma_non_intra_quantiser_matrix[64];
-};
-
-#endif
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 215e44172c66..575b59fbac77 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -17,7 +17,6 @@
* Include the stateless codec compound control definitions.
* This will move to the public headers once this API is fully stable.
*/
-#include <media/mpeg2-ctrls.h>
#include <media/hevc-ctrls.h>

/* forward references */
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index d43bec5f1afd..7c0cf9121669 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -1862,6 +1862,118 @@ struct v4l2_ctrl_vp8_frame {
__u64 flags;
};

+/* Stateless MPEG-2 controls */
+
+#define V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE 0x0001
+
+#define V4L2_CID_STATELESS_MPEG2_SEQUENCE (V4L2_CID_CODEC_STATELESS_BASE+220)
+/**
+ * struct v4l2_ctrl_mpeg2_sequence - MPEG-2 sequence header
+ *
+ * All the members on this structure match the sequence header and sequence
+ * extension syntaxes as specified by the MPEG-2 specification.
+ *
+ * Fields horizontal_size, vertical_size and vbv_buffer_size are a
+ * combination of respective _value and extension syntax elements,
+ * as described in section 6.3.3 "Sequence header".
+ *
+ * @horizontal_size: combination of elements horizontal_size_value and
+ * horizontal_size_extension.
+ * @vertical_size: combination of elements vertical_size_value and
+ * vertical_size_extension.
+ * @vbv_buffer_size: combination of elements vbv_buffer_size_value and
+ * vbv_buffer_size_extension.
+ * @profile_and_level_indication: see MPEG-2 specification.
+ * @chroma_format: see MPEG-2 specification.
+ * @flags: see V4L2_MPEG2_SEQ_FLAG_{}.
+ */
+struct v4l2_ctrl_mpeg2_sequence {
+ __u16 horizontal_size;
+ __u16 vertical_size;
+ __u32 vbv_buffer_size;
+ __u16 profile_and_level_indication;
+ __u8 chroma_format;
+ __u8 flags;
+};
+
+#define V4L2_MPEG2_PIC_CODING_TYPE_I 1
+#define V4L2_MPEG2_PIC_CODING_TYPE_P 2
+#define V4L2_MPEG2_PIC_CODING_TYPE_B 3
+#define V4L2_MPEG2_PIC_CODING_TYPE_D 4
+
+#define V4L2_MPEG2_PIC_TOP_FIELD 0x1
+#define V4L2_MPEG2_PIC_BOTTOM_FIELD 0x2
+#define V4L2_MPEG2_PIC_FRAME 0x3
+
+#define V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST 0x0001
+#define V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT 0x0002
+#define V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV 0x0004
+#define V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE 0x0008
+#define V4L2_MPEG2_PIC_FLAG_INTRA_VLC 0x0010
+#define V4L2_MPEG2_PIC_FLAG_ALT_SCAN 0x0020
+#define V4L2_MPEG2_PIC_FLAG_REPEAT_FIRST 0x0040
+#define V4L2_MPEG2_PIC_FLAG_PROGRESSIVE 0x0080
+
+#define V4L2_CID_STATELESS_MPEG2_PICTURE (V4L2_CID_CODEC_STATELESS_BASE+221)
+/**
+ * struct v4l2_ctrl_mpeg2_picture - MPEG-2 picture header
+ *
+ * All the members on this structure match the picture header and picture
+ * coding extension syntaxes as specified by the MPEG-2 specification.
+ *
+ * @backward_ref_ts: timestamp of the V4L2 capture buffer to use as
+ * reference for backward prediction.
+ * @forward_ref_ts: timestamp of the V4L2 capture buffer to use as
+ * reference for forward prediction. These timestamp refers to the
+ * timestamp field in struct v4l2_buffer. Use v4l2_timeval_to_ns()
+ * to convert the struct timeval to a __u64.
+ * @flags: see V4L2_MPEG2_PIC_FLAG_{}.
+ * @f_code: see MPEG-2 specification.
+ * @picture_coding_type: see MPEG-2 specification.
+ * @picture_structure: see V4L2_MPEG2_PIC_{}_FIELD.
+ * @intra_dc_precision: see MPEG-2 specification.
+ * @reserved: padding field. Should be zeroed by applications.
+ */
+struct v4l2_ctrl_mpeg2_picture {
+ __u64 backward_ref_ts;
+ __u64 forward_ref_ts;
+ __u32 flags;
+ __u8 f_code[2][2];
+ __u8 picture_coding_type;
+ __u8 picture_structure;
+ __u8 intra_dc_precision;
+ __u8 reserved;
+};
+
+#define V4L2_CID_STATELESS_MPEG2_QUANTISATION (V4L2_CID_CODEC_STATELESS_BASE+222)
+/**
+ * struct v4l2_ctrl_mpeg2_quantisation - MPEG-2 quantisation
+ *
+ * Quantisation matrices as specified by section 6.3.7
+ * "Quant matrix extension".
+ *
+ * @intra_quantiser_matrix: The quantisation matrix coefficients
+ * for intra-coded frames, in zigzag scanning order. It is relevant
+ * for both luma and chroma components, although it can be superseded
+ * by the chroma-specific matrix for non-4:2:0 YUV formats.
+ * @non_intra_quantiser_matrix: The quantisation matrix coefficients
+ * for non-intra-coded frames, in zigzag scanning order. It is relevant
+ * for both luma and chroma components, although it can be superseded
+ * by the chroma-specific matrix for non-4:2:0 YUV formats.
+ * @chroma_intra_quantiser_matrix: The quantisation matrix coefficients
+ * for the chominance component of intra-coded frames, in zigzag scanning
+ * order. Only relevant for 4:2:2 and 4:4:4 YUV formats.
+ * @chroma_non_intra_quantiser_matrix: The quantisation matrix coefficients
+ * for the chrominance component of non-intra-coded frames, in zigzag scanning
+ * order. Only relevant for 4:2:2 and 4:4:4 YUV formats.
+ */
+struct v4l2_ctrl_mpeg2_quantisation {
+ __u8 intra_quantiser_matrix[64];
+ __u8 non_intra_quantiser_matrix[64];
+ __u8 chroma_intra_quantiser_matrix[64];
+ __u8 chroma_non_intra_quantiser_matrix[64];
+};
+
#define V4L2_CID_COLORIMETRY_CLASS_BASE (V4L2_CTRL_CLASS_COLORIMETRY | 0x900)
#define V4L2_CID_COLORIMETRY_CLASS (V4L2_CTRL_CLASS_COLORIMETRY | 1)

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index d3bb18a3a51b..9260791b8438 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1747,6 +1747,9 @@ struct v4l2_ext_control {
struct v4l2_ctrl_h264_decode_params __user *p_h264_decode_params;
struct v4l2_ctrl_fwht_params __user *p_fwht_params;
struct v4l2_ctrl_vp8_frame __user *p_vp8_frame;
+ struct v4l2_ctrl_mpeg2_sequence __user *p_mpeg2_sequence;
+ struct v4l2_ctrl_mpeg2_picture __user *p_mpeg2_picture;
+ struct v4l2_ctrl_mpeg2_quantisation __user *p_mpeg2_quantisation;
void __user *ptr;
};
} __attribute__ ((packed));
--
2.30.0