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media: uapi: move MPEG-2 stateless controls out of staging 

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>
Tested-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Ezequiel Garcia 2021-04-29 16:48:18 +02:00 committed by Mauro Carvalho Chehab
parent 3c994c6d21
commit f4815b3991
14 changed files with 367 additions and 369 deletions
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214
Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
View File

@ -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``
- 0x01
- 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[5]``
- 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

216
Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
View File

@ -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``
- 0x01
- 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[5]``
- 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.

10
Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
View File

@ -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

12
Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
View File

@ -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

12
drivers/media/v4l2-core/v4l2-ctrls.c
View File

@ -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:

6
drivers/staging/media/hantro/hantro_drv.c
View File

@ -298,17 +298,17 @@ 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,

6
drivers/staging/media/hantro/hantro_g1_mpeg2_dec.c
View File

@ -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) |

6
drivers/staging/media/hantro/rk3399_vpu_hw_mpeg2_dec.c
View File

@ -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) |

6
drivers/staging/media/sunxi/cedrus/cedrus.c
View File

@ -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,
},

6
drivers/staging/media/sunxi/cedrus/cedrus_dec.c
View File

@ -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:

126
include/media/mpeg2-ctrls.h
View File

@ -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 0x01
/**
* 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[5];
};
/**
* 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

1
include/media/v4l2-ctrls.h
View File

@ -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 */

112
include/uapi/linux/v4l2-controls.h
View File

@ -1862,6 +1862,118 @@ struct v4l2_ctrl_vp8_frame {
__u64 flags;
};
/* Stateless MPEG-2 controls */
#define V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE 0x01
#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[5];
};
#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)

3
include/uapi/linux/videodev2.h
View File

@ -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));