[PATCH v3 05/10] media: uapi: Add VP9 stateless decoder controls
Andrzej Pietrasiewicz
andrzej.p at collabora.com
Thu Aug 5 07:42:41 PDT 2021
Add the VP9 stateless decoder controls plus the documentation that goes
with it.
Signed-off-by: Boris Brezillon <boris.brezillon at collabora.com>
Co-developed-by: Ezequiel Garcia <ezequiel at collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel at collabora.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu at collabora.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p at collabora.com>
Co-developed-by: Daniel Almeida <daniel.almeida at collabora.com>
Signed-off-by: Daniel Almeida <daniel.almeida at collabora.com>
---
.../userspace-api/media/v4l/biblio.rst | 10 +
.../media/v4l/ext-ctrls-codec-stateless.rst | 545 ++++++++++++++++++
.../media/v4l/pixfmt-compressed.rst | 15 +
.../media/v4l/vidioc-g-ext-ctrls.rst | 8 +
.../media/v4l/vidioc-queryctrl.rst | 12 +
.../media/videodev2.h.rst.exceptions | 2 +
drivers/media/v4l2-core/v4l2-ctrls-core.c | 174 ++++++
drivers/media/v4l2-core/v4l2-ctrls-defs.c | 8 +
drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
include/media/v4l2-ctrls.h | 4 +
include/uapi/linux/v4l2-controls.h | 433 ++++++++++++++
include/uapi/linux/videodev2.h | 6 +
12 files changed, 1218 insertions(+)
diff --git a/Documentation/userspace-api/media/v4l/biblio.rst b/Documentation/userspace-api/media/v4l/biblio.rst
index 7b8e6738ff9e..9cd18c153d19 100644
--- a/Documentation/userspace-api/media/v4l/biblio.rst
+++ b/Documentation/userspace-api/media/v4l/biblio.rst
@@ -417,3 +417,13 @@ VP8
:title: RFC 6386: "VP8 Data Format and Decoding Guide"
:author: J. Bankoski et al.
+
+.. _vp9:
+
+VP9
+===
+
+
+:title: VP9 Bitstream & Decoding Process Specification
+
+:author: Adrian Grange (Google), Peter de Rivaz (Argon Design), Jonathan Hunt (Argon Design)
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 72f5e85b4f34..af06d46e5993 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
@@ -1458,3 +1458,548 @@ FWHT Flags
.. raw:: latex
\normalsize
+
+.. _v4l2-codec-stateless-vp9:
+
+``V4L2_CID_STATELESS_VP9_COMPRESSED_HDR_PROBS (struct)``
+ Stores VP9 probabilities updates as parsed from the current compressed frame
+ header. A value of zero in an array element means no update of the relevant
+ probability. Motion vector-related updates contain a new value or zero. All
+ other updates contain values translated with inv_map_table[] (see 6.3.5 in
+ :ref:`vp9`).
+
+.. c:type:: v4l2_ctrl_vp9_compressed_hdr_probs
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{5.8cm}|p{4.8cm}|p{6.6cm}|
+
+.. flat-table:: struct v4l2_ctrl_vp9_compressed_hdr_probs
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u8
+ - ``tx8[2][1]``
+ - TX 8x8 probabilities delta.
+ * - __u8
+ - ``tx16[2][2]``
+ - TX 16x16 probabilities delta.
+ * - __u8
+ - ``tx32[2][3]``
+ - TX 32x32 probabilities delta.
+ * - __u8
+ - ``coef[4][2][2][6][6][3]``
+ - Coefficient probabilities delta.
+ * - __u8
+ - ``skip[3]``
+ - Skip probabilities delta.
+ * - __u8
+ - ``inter_mode[7][3]``
+ - Inter prediction mode probabilities delta.
+ * - __u8
+ - ``interp_filter[4][2]``
+ - Interpolation filter probabilities delta.
+ * - __u8
+ - ``is_inter[4]``
+ - Is inter-block probabilities delta.
+ * - __u8
+ - ``comp_mode[5]``
+ - Compound prediction mode probabilities delta.
+ * - __u8
+ - ``single_ref[5][2]``
+ - Single reference probabilities delta.
+ * - __u8
+ - ``comp_ref[5]``
+ - Compound reference probabilities delta.
+ * - __u8
+ - ``y_mode[4][9]``
+ - Y prediction mode probabilities delta.
+ * - __u8
+ - ``uv_mode[10][9]``
+ - UV prediction mode probabilities delta.
+ * - __u8
+ - ``partition[16][3]``
+ - Partition probabilities delta.
+ * - __u8
+ - ``mv.joint[3]``
+ - Motion vector joint probabilities delta.
+ * - __u8
+ - ``mv.sign[2]``
+ - Motion vector sign probabilities delta.
+ * - __u8
+ - ``mv.classes[2][10]``
+ - Motion vector class probabilities delta.
+ * - __u8
+ - ``mv.class0_bit[2]``
+ - Motion vector class0 bit probabilities delta.
+ * - __u8
+ - ``mv.bits[2][10]``
+ - Motion vector bits probabilities delta.
+ * - __u8
+ - ``mv.class0_fr[2][2][3]``
+ - Motion vector class0 fractional bit probabilities delta.
+ * - __u8
+ - ``mv.fr[2][3]``
+ - Motion vector fractional bit probabilities delta.
+ * - __u8
+ - ``mv.class0_hp[2]``
+ - Motion vector class0 high precision fractional bit probabilities delta.
+ * - __u8
+ - ``mv.hp[2]``
+ - Motion vector high precision fractional bit probabilities delta.
+
+``V4L2_CID_STATELESS_VP9_FRAME (struct)``
+ Specifies the frame parameters for the associated VP9 frame decode request.
+ This includes the necessary parameters for configuring a stateless hardware
+ decoding pipeline for VP9. The bitstream parameters are defined according
+ to :ref:`vp9`.
+
+.. c:type:: v4l2_ctrl_vp9_frame
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: struct v4l2_ctrl_vp9_frame
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - struct :c:type:`v4l2_vp9_loop_filter`
+ - ``lf``
+ - Loop filter parameters. See struct :c:type:`v4l2_vp9_loop_filter` for more details.
+ * - struct :c:type:`v4l2_vp9_quantization`
+ - ``quant``
+ - Quantization parameters. See :c:type:`v4l2_vp9_quantization` for more details.
+ * - struct :c:type:`v4l2_vp9_segmentation`
+ - ``seg``
+ - Segmentation parameters. See :c:type:`v4l2_vp9_segmentation` for more details.
+ * - __u32
+ - ``flags``
+ - Combination of V4L2_VP9_FRAME_FLAG_* flags. See :c:type:`v4l2_vp9_frame_flags`.
+ * - __u16
+ - ``compressed_header_size``
+ - Compressed header size in bytes.
+ * - __u16
+ - ``uncompressed_header_size``
+ - Uncompressed header size in bytes.
+ * - __u16
+ - ``frame_width_minus_1``
+ - Add 1 to get the frame width expressed in pixels. See section 7.2.3 in :ref:`vp9`.
+ * - __u16
+ - ``frame_height_minus_1``
+ - Add 1 to get the frame height expressed in pixels. See section 7.2.3 in :ref:`vp9`.
+ * - __u16
+ - ``render_width_minus_1``
+ - Add 1 to get the expected render width expressed in pixels. This is
+ not used during the decoding process but might be used by HW scalers to
+ prepare a frame that's ready for scanout. See section 7.2.4 in :ref:`vp9`.
+ * - __u16
+ - render_height_minus_1
+ - Add 1 to get the expected render height expressed in pixels. This is
+ not used during the decoding process but might be used by HW scalers to
+ prepare a frame that's ready for scanout. See section 7.2.4 in :ref:`vp9`.
+ * - __u64
+ - ``last_frame_ts``
+ - "last" reference buffer timestamp.
+ 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
+ - ``golden_frame_ts``
+ - "golden" reference buffer timestamp.
+ 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
+ - ``alt_frame_ts``
+ - "alt" reference buffer timestamp.
+ 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.
+ * - __u8
+ - ``ref_frame_sign_bias``
+ - a bitfield specifying whether the sign bias is set for a given
+ reference frame. See :c:type:`v4l2_vp9_ref_frame_sign_bias` for more details.
+ * - __u8
+ - ``reset_frame_context``
+ - specifies whether the frame context should be reset to default values. See
+ :c:type:`v4l2_vp9_reset_frame_context` for more details.
+ * - __u8
+ - ``frame_context_idx``
+ - Frame context that should be used/updated.
+ * - __u8
+ - ``profile``
+ - VP9 profile. Can be 0, 1, 2 or 3.
+ * - __u8
+ - ``bit_depth``
+ - Component depth in bits. Can be 8, 10 or 12. Note that not all profiles
+ support 10 and/or 12 bits depths.
+ * - __u8
+ - ``interpolation_filter``
+ - Specifies the filter selection used for performing inter prediction. See
+ :c:type:`v4l2_vp9_interpolation_filter` for more details.
+ * - __u8
+ - ``tile_cols_log2``
+ - Specifies the base 2 logarithm of the width of each tile (where the
+ width is measured in units of 8x8 blocks). Shall be less than or equal
+ to 6.
+ * - __u8
+ - ``tile_rows_log2``
+ - Specifies the base 2 logarithm of the height of each tile (where the
+ height is measured in units of 8x8 blocks).
+ * - __u8
+ - ``tx_mode``
+ - Specifies the TX mode. See :c:type:`v4l2_vp9_tx_mode` for more details.
+ * - __u8
+ - ``reference_mode``
+ - Specifies the type of inter prediction to be used. See
+ :c:type:`v4l2_vp9_reference_mode` for more details.
+ * - __u8
+ - ``reserved[6]``
+ - Applications and drivers must set this to zero.
+
+.. c:type:: v4l2_vp9_frame_flags
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: enum v4l2_vp9_frame_flags
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 2
+
+ * - ``V4L2_VP9_FRAME_FLAG_KEY_FRAME``
+ - The frame is a key frame.
+ * - ``V4L2_VP9_FRAME_FLAG_SHOW_FRAME``
+ - The frame should be displayed.
+ * - ``V4L2_VP9_FRAME_FLAG_ERROR_RESILIENT``
+ - The decoding should be error resilient.
+ * - ``V4L2_VP9_FRAME_FLAG_INTRA_ONLY``
+ - The frame does not reference other frames.
+ * - ``V4L2_VP9_FRAME_FLAG_ALLOW_HIGH_PREC_MV``
+ - The frame can use high precision motion vectors.
+ * - ``V4L2_VP9_FRAME_FLAG_REFRESH_FRAME_CTX``
+ - Frame context should be updated after decoding.
+ * - ``V4L2_VP9_FRAME_FLAG_PARALLEL_DEC_MODE``
+ - Parallel decoding is used.
+ * - ``V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING``
+ - Vertical subsampling is enabled.
+ * - ``V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING``
+ - Horizontal subsampling is enabled.
+ * - ``V4L2_VP9_FRAME_FLAG_COLOR_RANGE_FULL_SWING``
+ - The full UV range is used.
+
+.. c:type:: v4l2_vp9_tx_mode
+
+See section '7.3.1 Tx mode semantics' of the VP9 specification for more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: enum v4l2_vp9_tx_mode
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 2
+
+ * - ``V4L2_VP9_TX_MODE_ONLY_4X4``
+ - Transform size is 4x4.
+ * - ``V4L2_VP9_TX_MODE_ALLOW_8X8``
+ - Transform size can be up to 8x8.
+ * - ``V4L2_VP9_TX_MODE_ALLOW_16X16``
+ - Transform size can be up to 16x16.
+ * - ``V4L2_VP9_TX_MODE_ALLOW_32X32``
+ - transform size can be up to 32x32.
+ * - ``V4L2_VP9_TX_MODE_SELECT``
+ - Bitstream contains the transform size for each block.
+
+.. c:type:: v4l2_vp9_reference_mode
+
+See section '7.3.6 Frame reference mode semantics' of the VP9 specification for more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: enum v4l2_vp9_reference_mode
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 2
+
+ * - ``V4L2_VP9_REFERENCE_MODE_SINGLE_REFERENCE``
+ - Indicates that all the inter blocks use only a single reference frame
+ to generate motion compensated prediction.
+ * - ``V4L2_VP9_REFERENCE_MODE_COMPOUND_REFERENCE``
+ - Requires all the inter blocks to use compound mode. Single reference
+ frame prediction is not allowed.
+ * - ``V4L2_VP9_REFERENCE_MODE_SELECT``
+ - Allows each individual inter block to select between single and
+ compound prediction modes.
+
+.. c:type:: v4l2_vp9_interpolation_filter
+
+See section '7.2.7 Interpolation filter semantics' of the VP9 specification
+for more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: enum v4l2_vp9_interpolation_filter
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 2
+
+ * - ``V4L2_VP9_INTERP_FILTER_EIGHTTAP``
+ - Eight tap filter.
+ * - ``V4L2_VP9_INTERP_FILTER_EIGHTTAP_SMOOTH``
+ - Eight tap smooth filter.
+ * - ``V4L2_VP9_INTERP_FILTER_EIGHTTAP_SHARP``
+ - Eeight tap sharp filter.
+ * - ``V4L2_VP9_INTERP_FILTER_BILINEAR``
+ - Bilinear filter.
+ * - ``V4L2_VP9_INTERP_FILTER_SWITCHABLE``
+ - Filter selection is signaled at the block level.
+
+.. c:type:: v4l2_vp9_reset_frame_context
+
+See section '7.2 Uncompressed header semantics' of the VP9 specification
+for more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: enum v4l2_vp9_reset_frame_context
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 2
+
+ * - ``V4L2_VP9_RESET_FRAME_CTX_NONE``
+ - Do not reset any frame context.
+ * - ``V4L2_VP9_RESET_FRAME_CTX_SPEC``
+ - Reset the frame context pointed to by
+ :c:type:`v4l2_ctrl_vp9_frame`.frame_context_idx.
+ * - ``V4L2_VP9_RESET_FRAME_CTX_ALL``
+ - Reset all frame contexts.
+
+.. c:type:: v4l2_vp9_intra_prediction_mode
+
+See section '7.4.5 Intra frame mode info semantics' for more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: enum v4l2_vp9_intra_prediction_mode
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 2
+
+ * - ``V4L2_VP9_INTRA_PRED_MODE_DC_PRED``
+ - DC intra prediction.
+ * - ``V4L2_VP9_INTRA_PRED_MODE_V_PRED``
+ - Vertical intra prediction.
+ * - ``V4L2_VP9_INTRA_PRED_MODE_H_PRED``
+ - Horizontal intra prediction.
+ * - ``V4L2_VP9_INTRA_PRED_MODE_D45_PRED``
+ - D45 intra prediction.
+ * - ``V4L2_VP9_INTRA_PRED_MODE_D135_PRED``
+ - D135 intra prediction.
+ * - ``V4L2_VP9_INTRA_PRED_MODE_D117_PRED``
+ - D117 intra prediction.
+ * - ``V4L2_VP9_INTRA_PRED_MODE_D153_PRED``
+ - D153 intra prediction.
+ * - ``V4L2_VP9_INTRA_PRED_MODE_D207_PRED``
+ - D207 intra prediction.
+ * - ``V4L2_VP9_INTRA_PRED_MODE_D63_PRED``
+ - D63 intra prediction.
+ * - ``V4L2_VP9_INTRA_PRED_MODE_TM_PRED``
+ - True motion intra prediction.
+
+.. c:type:: v4l2_vp9_segmentation
+
+Encodes the quantization parameters. See section '7.2.10 Segmentation
+params syntax' of the VP9 specification for more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: struct v4l2_vp9_segmentation
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u8
+ - ``feature_data[8][4]``
+ - Data attached to each feature. Data entry is only valid if the feature
+ is enabled.
+ * - __u8
+ - ``feature_enabled[8]``
+ - Bitmask defining which features are enabled in each segment.
+ * - __u8
+ - ``tree_probs[7]``
+ - Specifies the probability values to be used when decoding a Segment-ID.
+ See '5.15. Segmentation map' section of :ref:`vp9` for more details.
+ * - __u8
+ - ``pred_probs[3]``
+ - Specifies the probability values to be used when decoding a
+ Predicted-Segment-ID. See '6.4.14. Get segment id syntax'
+ section of :ref:`vp9` for more details.
+ * - __u8
+ - ``flags``
+ - Combination of V4L2_VP9_SEGMENTATION_FLAG_* flags. See
+ :c:type:`v4l2_vp9_segmentation_flags`.
+ * - __u8
+ - ``reserved[5]``
+ - Applications and drivers must set this to zero.
+
+.. c:type:: v4l2_vp9_segment_feature
+
+Segment feature IDs. See section '7.2.10 Segmentation params syntax' of the
+VP9 specification for more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: enum v4l2_vp9_segment_feature
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 2
+
+ * - ``V4L2_VP9_SEG_LVL_ALT_Q``
+ - Quantizer segment feature.
+ * - ``V4L2_VP9_SEG_LVL_ALT_L``
+ - Loop filter segment feature.
+ * - ``V4L2_VP9_SEG_LVL_REF_FRAME``
+ - Reference frame segment feature.
+ * - ``V4L2_VP9_SEG_LVL_SKIP``
+ - Skip segment feature.
+ * - ``V4L2_VP9_SEG_LVL_MAX``
+ - Number of segment features.
+
+.. c:type:: v4l2_vp9_segmentation_flags
+
+Those are the flags that may be passed to &v4l2_vp9_segmentation.flags. See
+section '7.2.10 Segmentation params syntax' of the VP9 specification for
+more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: enum v4l2_vp9_segmentation_flags
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 2
+
+ * - ``V4L2_VP9_SEGMENTATION_FLAG_ENABLED``
+ - Indicates that this frame makes use of the segmentation tool.
+ * - ``V4L2_VP9_SEGMENTATION_FLAG_UPDATE_MAP``
+ - Indicates that the segmentation map should be updated during the
+ decoding of this frame.
+ * - ``V4L2_VP9_SEGMENTATION_FLAG_TEMPORAL_UPDATE``
+ - Indicates that the updates to the segmentation map are coded
+ relative to the existing segmentation map.
+ * - ``V4L2_VP9_SEGMENTATION_FLAG_UPDATE_DATA``
+ - Indicates that new parameters are about to be specified for each
+ segment.
+ * - ``V4L2_VP9_SEGMENTATION_FLAG_ABS_OR_DELTA_UPDATE``
+ - Indicates that the segmentation parameters represent the actual values
+ to be used.
+
+.. c:type:: v4l2_vp9_quantization
+
+Encodes the quantization parameters. See section '7.2.9 Quantization params
+syntax' of the VP9 specification for more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: struct v4l2_vp9_quantization
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u8
+ - ``base_q_idx``
+ - Indicates the base frame qindex.
+ * - __s8
+ - ``delta_q_y_dc``
+ - Indicates the Y DC quantizer relative to base_q_idx.
+ * - __s8
+ - ``delta_q_uv_dc``
+ - Indicates the UV DC quantizer relative to base_q_idx.
+ * - __s8
+ - ``delta_q_uv_ac``
+ - Indicates the UV AC quantizer relative to base_q_idx.
+ * - __u8
+ - ``reserved[4]``
+ - Applications and drivers must set this to zero.
+
+.. c:type:: v4l2_vp9_loop_filter
+
+This structure contains all loop filter related parameters. See sections
+'7.2.8 Loop filter semantics' of the VP9 specification for more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: struct v4l2_vp9_loop_filter
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __s8
+ - ``ref_deltas[4]``
+ - Contains the adjustment needed for the filter level based on the chosen
+ reference frame.
+ * - __s8
+ - ``mode_deltas[2]``
+ - Contains the adjustment needed for the filter level based on the chosen
+ mode.
+ * - __u8
+ - ``level``
+ - Indicates the loop filter strength.
+ * - __u8
+ - ``sharpness``
+ - Indicates the sharpness level.
+ * - __u8
+ - ``flags``
+ - Combination of V4L2_VP9_LOOP_FILTER_FLAG_* flags.
+ See :c:type:`v4l2_vp9_loop_filter_flags`.
+ * - __u8
+ - ``reserved[7]``
+ - Applications and drivers must set this to zero.
+
+
+.. c:type:: v4l2_vp9_loop_filter_flags
+
+Those are the flags that may be passed. See section '7.2.8 Loop filter
+semantics' of the VP9 specification for more details.
+
+.. cssclass:: longtable
+
+.. tabularcolumns:: |p{1.5cm}|p{6.3cm}|p{9.4cm}|
+
+.. flat-table:: enum v4l2_vp9_loop_filter_flags
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 2
+
+ * - ``V4L2_VP9_LOOP_FILTER_FLAG_DELTA_ENABLED``
+ - When set, the filter level depends on the mode and reference frame used
+ to predict a block.
+ * - ``V4L2_VP9_LOOP_FILTER_FLAG_DELTA_UPDATE``
+ - When set, the bitstream contains additional syntax elements that
+ specify which mode and reference frame deltas are to be updated.
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
index 0ede39907ee2..1b20f48a24b9 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
@@ -172,6 +172,21 @@ Compressed Formats
- VP9 compressed video frame. The encoder generates one
compressed frame per buffer, and the decoder requires one
compressed frame per buffer.
+ * .. _V4L2-PIX-FMT-VP9-FRAME:
+
+ - ``V4L2_PIX_FMT_VP9_FRAME``
+ - 'VP9F'
+ - VP9 parsed frame, including the frame header, as extracted from the container.
+ This format is adapted for stateless video decoders that implement a
+ VP9 pipeline with the :ref:`stateless_decoder`.
+ Metadata associated with the frame to decode is required to be passed
+ through the ``V4L2_CID_STATELESS_VP9_FRAME`` and
+ the ``V4L2_CID_STATELESS_VP9_COMPRESSED_HDR_PROBS`` controls.
+ See the :ref:`associated Codec Control IDs <v4l2-codec-stateless-vp9>`.
+ 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-HEVC:
- ``V4L2_PIX_FMT_HEVC``
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 2d6bc8d94380..258895ff0c71 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
@@ -233,6 +233,14 @@ still cause this situation.
- ``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_vp9_compressed_hdr_probs` *
+ - ``p_vp9_compressed_hdr_probs``
+ - A pointer to a struct :c:type:`v4l2_ctrl_vp9_compressed_hdr_probs`. Valid if this
+ control is of type ``V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR_PROBS``.
+ * - struct :c:type:`v4l2_ctrl_vp9_frame` *
+ - ``p_vp9_frame``
+ - A pointer to a struct :c:type:`v4l2_ctrl_vp9_frame`. Valid if this
+ control is of type ``V4L2_CTRL_TYPE_VP9_FRAME``.
* - 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/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst b/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
index f9ecf6276129..e0c6a5d9ff6b 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
@@ -507,6 +507,18 @@ See also the examples in :ref:`control`.
- n/a
- A struct :c:type:`v4l2_ctrl_hevc_decode_params`, containing HEVC
decoding parameters for stateless video decoders.
+ * - ``V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR_PROBS``
+ - n/a
+ - n/a
+ - n/a
+ - A struct :c:type:`v4l2_ctrl_vp9_compressed_hdr_probs`, containing VP9
+ probabilities updates for stateless video decoders.
+ * - ``V4L2_CTRL_TYPE_VP9_FRAME``
+ - n/a
+ - n/a
+ - n/a
+ - A struct :c:type:`v4l2_ctrl_vp9_frame`, containing VP9
+ frame decode parameters for stateless video decoders.
.. raw:: latex
diff --git a/Documentation/userspace-api/media/videodev2.h.rst.exceptions b/Documentation/userspace-api/media/videodev2.h.rst.exceptions
index eb0b1cd37abd..129ef3edfa73 100644
--- a/Documentation/userspace-api/media/videodev2.h.rst.exceptions
+++ b/Documentation/userspace-api/media/videodev2.h.rst.exceptions
@@ -149,6 +149,8 @@ replace symbol V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_AREA :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_FWHT_PARAMS :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_VP8_FRAME :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR_PROBS :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_VP9_FRAME :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_HDR10_CLL_INFO :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY :c:type:`v4l2_ctrl_type`
diff --git a/drivers/media/v4l2-core/v4l2-ctrls-core.c b/drivers/media/v4l2-core/v4l2-ctrls-core.c
index c4b5082849b6..ed9cf298a83a 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls-core.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls-core.c
@@ -283,6 +283,12 @@ static void std_log(const struct v4l2_ctrl *ctrl)
case V4L2_CTRL_TYPE_MPEG2_PICTURE:
pr_cont("MPEG2_PICTURE");
break;
+ case V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR_PROBS:
+ pr_cont("VP9_COMPRESSED_HDR_PROBS");
+ break;
+ case V4L2_CTRL_TYPE_VP9_FRAME:
+ pr_cont("VP9_FRAME");
+ break;
default:
pr_cont("unknown type %d", ctrl->type);
break;
@@ -317,6 +323,162 @@ static void std_log(const struct v4l2_ctrl *ctrl)
#define zero_reserved(s) \
memset(&(s).reserved, 0, sizeof((s).reserved))
+static int
+validate_vp9_lf_params(struct v4l2_vp9_loop_filter *lf)
+{
+ unsigned int i;
+
+ if (lf->flags & ~(V4L2_VP9_LOOP_FILTER_FLAG_DELTA_ENABLED |
+ V4L2_VP9_LOOP_FILTER_FLAG_DELTA_UPDATE))
+ return -EINVAL;
+
+ /* That all values are in the accepted range. */
+ if (lf->level > GENMASK(5, 0))
+ return -EINVAL;
+
+ if (lf->sharpness > GENMASK(2, 0))
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(lf->ref_deltas); i++)
+ if (lf->ref_deltas[i] < -63 || lf->ref_deltas[i] > 63)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(lf->mode_deltas); i++)
+ if (lf->mode_deltas[i] < -63 || lf->mode_deltas[i] > 63)
+ return -EINVAL;
+
+ zero_reserved(*lf);
+ return 0;
+}
+
+static int
+validate_vp9_quant_params(struct v4l2_vp9_quantization *quant)
+{
+ if (quant->delta_q_y_dc < -15 || quant->delta_q_y_dc > 15 ||
+ quant->delta_q_uv_dc < -15 || quant->delta_q_uv_dc > 15 ||
+ quant->delta_q_uv_ac < -15 || quant->delta_q_uv_ac > 15)
+ return -EINVAL;
+
+ zero_reserved(*quant);
+ return 0;
+}
+
+static int
+validate_vp9_seg_params(struct v4l2_vp9_segmentation *seg)
+{
+ unsigned int i, j;
+
+ if (seg->flags & ~(V4L2_VP9_SEGMENTATION_FLAG_ENABLED |
+ V4L2_VP9_SEGMENTATION_FLAG_UPDATE_MAP |
+ V4L2_VP9_SEGMENTATION_FLAG_TEMPORAL_UPDATE |
+ V4L2_VP9_SEGMENTATION_FLAG_UPDATE_DATA |
+ V4L2_VP9_SEGMENTATION_FLAG_ABS_OR_DELTA_UPDATE))
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(seg->feature_enabled); i++) {
+ if (seg->feature_enabled[i] &
+ ~V4L2_VP9_SEGMENT_FEATURE_ENABLED_MASK)
+ return -EINVAL;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(seg->feature_data); i++) {
+ const int range[] = { 255, 63, 3, 0 };
+
+ for (j = 0; j < ARRAY_SIZE(seg->feature_data[j]); j++) {
+ if (seg->feature_data[i][j] < -range[j] ||
+ seg->feature_data[i][j] > range[j])
+ return -EINVAL;
+ }
+ }
+
+ zero_reserved(*seg);
+ return 0;
+}
+
+static int
+validate_vp9_frame(struct v4l2_ctrl_vp9_frame *frame)
+{
+ int ret;
+
+ /* Make sure we're not passed invalid flags. */
+ if (frame->flags & ~(V4L2_VP9_FRAME_FLAG_KEY_FRAME |
+ V4L2_VP9_FRAME_FLAG_SHOW_FRAME |
+ V4L2_VP9_FRAME_FLAG_ERROR_RESILIENT |
+ V4L2_VP9_FRAME_FLAG_INTRA_ONLY |
+ V4L2_VP9_FRAME_FLAG_ALLOW_HIGH_PREC_MV |
+ V4L2_VP9_FRAME_FLAG_REFRESH_FRAME_CTX |
+ V4L2_VP9_FRAME_FLAG_PARALLEL_DEC_MODE |
+ V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING |
+ V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING |
+ V4L2_VP9_FRAME_FLAG_COLOR_RANGE_FULL_SWING))
+ return -EINVAL;
+
+ if (frame->flags & V4L2_VP9_FRAME_FLAG_ERROR_RESILIENT &&
+ frame->flags & V4L2_VP9_FRAME_FLAG_REFRESH_FRAME_CTX)
+ return -EINVAL;
+
+ if (frame->profile > V4L2_VP9_PROFILE_MAX)
+ return -EINVAL;
+
+ if (frame->reset_frame_context > V4L2_VP9_RESET_FRAME_CTX_ALL)
+ return -EINVAL;
+
+ if (frame->frame_context_idx >= V4L2_VP9_NUM_FRAME_CTX)
+ return -EINVAL;
+
+ /*
+ * Profiles 0 and 1 only support 8-bit depth, profiles 2 and 3 only 10
+ * and 12 bit depths.
+ */
+ if ((frame->profile < 2 && frame->bit_depth != 8) ||
+ (frame->profile >= 2 &&
+ (frame->bit_depth != 10 && frame->bit_depth != 12)))
+ return -EINVAL;
+
+ /* Profile 0 and 2 only accept YUV 4:2:0. */
+ if ((frame->profile == 0 || frame->profile == 2) &&
+ (!(frame->flags & V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING) ||
+ !(frame->flags & V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING)))
+ return -EINVAL;
+
+ /* Profile 1 and 3 only accept YUV 4:2:2, 4:4:0 and 4:4:4. */
+ if ((frame->profile == 1 || frame->profile == 3) &&
+ ((frame->flags & V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING) &&
+ (frame->flags & V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING)))
+ return -EINVAL;
+
+ if (frame->interpolation_filter > V4L2_VP9_INTERP_FILTER_SWITCHABLE)
+ return -EINVAL;
+
+ /*
+ * According to the spec, tile_cols_log2 shall be less than or equal
+ * to 6.
+ */
+ if (frame->tile_cols_log2 > 6)
+ return -EINVAL;
+
+ if (frame->tx_mode > V4L2_VP9_TX_MODE_SELECT)
+ return -EINVAL;
+
+ if (frame->reference_mode > V4L2_VP9_REFERENCE_MODE_SELECT)
+ return -EINVAL;
+
+ ret = validate_vp9_lf_params(&frame->lf);
+ if (ret)
+ return ret;
+
+ ret = validate_vp9_quant_params(&frame->quant);
+ if (ret)
+ return ret;
+
+ ret = validate_vp9_seg_params(&frame->seg);
+ if (ret)
+ return ret;
+
+ zero_reserved(*frame);
+ return 0;
+}
+
/*
* Compound controls validation requires setting unused fields/flags to zero
* in order to properly detect unchanged controls with std_equal's memcmp.
@@ -687,6 +849,12 @@ static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx,
break;
+ case V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR_PROBS:
+ break;
+
+ case V4L2_CTRL_TYPE_VP9_FRAME:
+ return validate_vp9_frame(p);
+
case V4L2_CTRL_TYPE_AREA:
area = p;
if (!area->width || !area->height)
@@ -1249,6 +1417,12 @@ static struct v4l2_ctrl *v4l2_ctrl_new(struct v4l2_ctrl_handler *hdl,
case V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY:
elem_size = sizeof(struct v4l2_ctrl_hdr10_mastering_display);
break;
+ case V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR_PROBS:
+ elem_size = sizeof(struct v4l2_ctrl_vp9_compressed_hdr_probs);
+ break;
+ case V4L2_CTRL_TYPE_VP9_FRAME:
+ elem_size = sizeof(struct v4l2_ctrl_vp9_frame);
+ break;
case V4L2_CTRL_TYPE_AREA:
elem_size = sizeof(struct v4l2_area);
break;
diff --git a/drivers/media/v4l2-core/v4l2-ctrls-defs.c b/drivers/media/v4l2-core/v4l2-ctrls-defs.c
index 421300e13a41..d383c438156f 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls-defs.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls-defs.c
@@ -1175,6 +1175,8 @@ const char *v4l2_ctrl_get_name(u32 id)
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";
+ case V4L2_CID_STATELESS_VP9_COMPRESSED_HDR_PROBS: return "VP9 Probabilities Updates";
+ case V4L2_CID_STATELESS_VP9_FRAME: return "VP9 Frame Decode Parameters";
/* Colorimetry controls */
/* Keep the order of the 'case's the same as in v4l2-controls.h! */
@@ -1493,6 +1495,12 @@ void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
case V4L2_CID_MPEG_VIDEO_HEVC_DECODE_PARAMS:
*type = V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS;
break;
+ case V4L2_CID_STATELESS_VP9_COMPRESSED_HDR_PROBS:
+ *type = V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR_PROBS;
+ break;
+ case V4L2_CID_STATELESS_VP9_FRAME:
+ *type = V4L2_CTRL_TYPE_VP9_FRAME;
+ break;
case V4L2_CID_UNIT_CELL_SIZE:
*type = V4L2_CTRL_TYPE_AREA;
*flags |= V4L2_CTRL_FLAG_READ_ONLY;
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index ec6fc1ef291e..7a5e8120d733 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -1394,6 +1394,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
case V4L2_PIX_FMT_VP8: descr = "VP8"; break;
case V4L2_PIX_FMT_VP8_FRAME: descr = "VP8 Frame"; break;
case V4L2_PIX_FMT_VP9: descr = "VP9"; break;
+ case V4L2_PIX_FMT_VP9_FRAME: descr = "VP9 Frame"; break;
case V4L2_PIX_FMT_HEVC: descr = "HEVC"; break; /* aka H.265 */
case V4L2_PIX_FMT_HEVC_SLICE: descr = "HEVC Parsed Slice Data"; break;
case V4L2_PIX_FMT_FWHT: descr = "FWHT"; break; /* used in vicodec */
diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 575b59fbac77..3ea4386ebd91 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -50,6 +50,8 @@ struct video_device;
* @p_h264_decode_params: Pointer to a struct v4l2_ctrl_h264_decode_params.
* @p_h264_pred_weights: Pointer to a struct v4l2_ctrl_h264_pred_weights.
* @p_vp8_frame: Pointer to a VP8 frame params structure.
+ * @p_vp9_compressed_hdr_probs: Pointer to a VP9 frame compressed header probs structure.
+ * @p_vp9_frame: Pointer to a VP9 frame params structure.
* @p_hevc_sps: Pointer to an HEVC sequence parameter set structure.
* @p_hevc_pps: Pointer to an HEVC picture parameter set structure.
* @p_hevc_slice_params: Pointer to an HEVC slice parameters structure.
@@ -80,6 +82,8 @@ union v4l2_ctrl_ptr {
struct v4l2_ctrl_hevc_sps *p_hevc_sps;
struct v4l2_ctrl_hevc_pps *p_hevc_pps;
struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params;
+ struct v4l2_ctrl_vp9_compressed_hdr_probs *p_vp9_compressed_hdr_probs;
+ struct v4l2_ctrl_vp9_frame *p_vp9_frame;
struct v4l2_ctrl_hdr10_cll_info *p_hdr10_cll;
struct v4l2_ctrl_hdr10_mastering_display *p_hdr10_mastering;
struct v4l2_area *p_area;
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 5532b5f68493..8f8c3c1ad885 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -2010,6 +2010,439 @@ struct v4l2_ctrl_hdr10_mastering_display {
__u32 min_display_mastering_luminance;
};
+/* Stateless VP9 controls */
+
+/**
+ * enum v4l2_vp9_loop_filter_flags - VP9 loop filter flags
+ *
+ * @V4L2_VP9_LOOP_FILTER_FLAG_DELTA_ENABLED: the filter level depends on
+ * the mode and reference frame used to predict a block
+ * @V4L2_VP9_LOOP_FILTER_FLAG_DELTA_UPDATE: the bitstream contains additional
+ * syntax elements that specify which mode and reference frame deltas are to be updated
+ *
+ * Those are the flags that may be passed to &v4l2_vp9_loop_filter.flags. See
+ * section '7.2.8 Loop filter semantics' of the VP9 specification for more
+ * details.
+ */
+enum v4l2_vp9_loop_filter_flags {
+ V4L2_VP9_LOOP_FILTER_FLAG_DELTA_ENABLED = 1 << 0,
+ V4L2_VP9_LOOP_FILTER_FLAG_DELTA_UPDATE = 1 << 1,
+};
+
+/**
+ * struct v4l2_vp9_loop_filter - VP9 loop filter parameters
+ *
+ * @ref_deltas: contains the adjustment needed for the filter level based on the chosen
+ * reference frame. If this syntax element is not present in the bitstream, users
+ * should pass its last value.
+ * @mode_deltas: contains the adjustment needed for the filter level based on the chosen mode.
+ * If this syntax element is not present in the bitstream, users
+ * should pass its last value.
+ * @level: indicates the loop filter strength
+ * @sharpness: indicates the sharpness level
+ * @flags: combination of V4L2_VP9_LOOP_FILTER_FLAG_* flags
+ * @reserved: padding field. Should be zeroed by applications.
+ *
+ * This structure contains all loop filter related parameters. See sections
+ * '7.2.8 Loop filter semantics' of the VP9 specification for more details.
+ */
+struct v4l2_vp9_loop_filter {
+ __s8 ref_deltas[4];
+ __s8 mode_deltas[2];
+ __u8 level;
+ __u8 sharpness;
+ __u8 flags;
+ __u8 reserved[7];
+};
+
+/**
+ * struct v4l2_vp9_quantization - VP9 quantization parameters
+ *
+ * @base_q_idx: indicates the base frame qindex
+ * @delta_q_y_dc: indicates the Y DC quantizer relative to base_q_idx
+ * @delta_q_uv_dc: indicates the UV DC quantizer relative to base_q_idx
+ * @delta_q_uv_ac: indicates the UV AC quantizer relative to base_q_idx
+ * @reserved: padding field. Should be zeroed by applications.
+ *
+ * Encodes the quantization parameters. See section '7.2.9 Quantization params
+ * syntax' of the VP9 specification for more details.
+ */
+struct v4l2_vp9_quantization {
+ __u8 base_q_idx;
+ __s8 delta_q_y_dc;
+ __s8 delta_q_uv_dc;
+ __s8 delta_q_uv_ac;
+ __u8 reserved[4];
+};
+
+/**
+ * enum v4l2_vp9_segmentation_flags - VP9 segmentation flags
+ *
+ * @V4L2_VP9_SEGMENTATION_FLAG_ENABLED: indicates that this frame makes use of
+ * the segmentation tool
+ * @V4L2_VP9_SEGMENTATION_FLAG_UPDATE_MAP: indicates that the segmentation map
+ * should be updated during the decoding of this frame
+ * @V4L2_VP9_SEGMENTATION_FLAG_TEMPORAL_UPDATE: indicates that the updates to
+ * the segmentation map are coded relative to the existing segmentation map
+ * @V4L2_VP9_SEGMENTATION_FLAG_UPDATE_DATA: indicates that new parameters are
+ * about to be specified for each segment
+ * @V4L2_VP9_SEGMENTATION_FLAG_ABS_OR_DELTA_UPDATE: indicates that the
+ * segmentation parameters represent the actual values to be used
+ *
+ * Those are the flags that may be passed to &v4l2_vp9_segmentation.flags. See
+ * section '7.2.10 Segmentation params syntax' of the VP9 specification for
+ * more details.
+ */
+enum v4l2_vp9_segmentation_flags {
+ V4L2_VP9_SEGMENTATION_FLAG_ENABLED = 1 << 0,
+ V4L2_VP9_SEGMENTATION_FLAG_UPDATE_MAP = 1 << 1,
+ V4L2_VP9_SEGMENTATION_FLAG_TEMPORAL_UPDATE = 1 << 2,
+ V4L2_VP9_SEGMENTATION_FLAG_UPDATE_DATA = 1 << 3,
+ V4L2_VP9_SEGMENTATION_FLAG_ABS_OR_DELTA_UPDATE = 1 << 4,
+};
+
+#define V4L2_VP9_SEGMENT_FEATURE_ENABLED(id) (1 << (id))
+#define V4L2_VP9_SEGMENT_FEATURE_ENABLED_MASK 0xf
+
+/**
+ * enum v4l2_vp9_segment_feature - VP9 segment feature IDs
+ *
+ * @V4L2_VP9_SEG_LVL_ALT_Q: quantizer segment feature
+ * @V4L2_VP9_SEG_LVL_ALT_L: loop filter segment feature
+ * @V4L2_VP9_SEG_LVL_REF_FRAME reference frame segment feature
+ * @V4L2_VP9_SEG_LVL_SKIP: skip segment feature
+ * @V4L2_VP9_SEG_LVV_MAX: number of segment features
+ *
+ * Segment feature IDs. See section '7.2.10 Segmentation params syntax' of the
+ * VP9 specification for more details.
+ */
+enum v4l2_vp9_segment_feature {
+ V4L2_VP9_SEG_LVL_ALT_Q,
+ V4L2_VP9_SEG_LVL_ALT_L,
+ V4L2_VP9_SEG_LVL_REF_FRAME,
+ V4L2_VP9_SEG_LVL_SKIP,
+ V4L2_VP9_SEG_LVL_MAX,
+};
+
+/**
+ * struct v4l2_vp9_segmentation - VP9 segmentation parameters
+ *
+ * @feature_data: data attached to each feature. Data entry is only valid if the feature is enabled
+ * @feature_enabled: bitmask defining which features are enabled in each segment
+ * @tree_probs: specifies the probability values to be used when
+ * decoding a Segment-ID. See '5.15. Segmentation map' section of the VP9 specification
+ * for more details.
+ * @pred_probs: specifies the probability values to be used when decoding a
+ * Predicted-Segment-ID. See '6.4.14. Get segment id syntax' section of :ref:`vp9`
+ * for more details.
+ * @flags: combination of V4L2_VP9_SEGMENTATION_FLAG_* flags
+ * @reserved: padding field. Should be zeroed by applications.
+ *
+ * Encodes the quantization parameters. See section '7.2.10 Segmentation params syntax' of
+ * the VP9 specification for more details.
+ */
+struct v4l2_vp9_segmentation {
+ __s16 feature_data[8][4];
+ __u8 feature_enabled[8];
+ __u8 tree_probs[7];
+ __u8 pred_probs[3];
+ __u8 flags;
+ __u8 reserved[5];
+};
+
+/**
+ * enum v4l2_vp9_intra_prediction_mode - VP9 Intra prediction modes
+ *
+ * @V4L2_VP9_INTRA_PRED_MODE_DC_PRED: DC intra prediction
+ * @V4L2_VP9_INTRA_PRED_MODE_V_PRED: vertical intra prediction
+ * @V4L2_VP9_INTRA_PRED_MODE_H_PRED: horizontal intra prediction
+ * @V4L2_VP9_INTRA_PRED_MODE_D45_PRED: D45 intra prediction
+ * @V4L2_VP9_INTRA_PRED_MODE_D135_PRED: D135 intra prediction
+ * @V4L2_VP9_INTRA_PRED_MODE_D117_PRED: D117 intra prediction
+ * @V4L2_VP9_INTRA_PRED_MODE_D153_PRED: D153 intra prediction
+ * @V4L2_VP9_INTRA_PRED_MODE_D207_PRED: D207 intra prediction
+ * @V4L2_VP9_INTRA_PRED_MODE_D63_PRED: D63 intra prediction
+ * @V4L2_VP9_INTRA_PRED_MODE_TM_PRED: True Motion intra prediction
+ *
+ * See section '7.4.5 Intra frame mode info semantics' for more details.
+ */
+enum v4l2_vp9_intra_prediction_mode {
+ V4L2_VP9_INTRA_PRED_MODE_DC_PRED,
+ V4L2_VP9_INTRA_PRED_MODE_V_PRED,
+ V4L2_VP9_INTRA_PRED_MODE_H_PRED,
+ V4L2_VP9_INTRA_PRED_MODE_D45_PRED,
+ V4L2_VP9_INTRA_PRED_MODE_D135_PRED,
+ V4L2_VP9_INTRA_PRED_MODE_D117_PRED,
+ V4L2_VP9_INTRA_PRED_MODE_D153_PRED,
+ V4L2_VP9_INTRA_PRED_MODE_D207_PRED,
+ V4L2_VP9_INTRA_PRED_MODE_D63_PRED,
+ V4L2_VP9_INTRA_PRED_MODE_TM_PRED,
+};
+
+/**
+ * enum v4l2_vp9_reset_frame_context - Valid values for
+ * &v4l2_ctrl_vp9_frame->reset_frame_context
+ *
+ * @V4L2_VP9_RESET_FRAME_CTX_NONE: don't reset any frame context
+ * @V4L2_VP9_RESET_FRAME_CTX_SPEC: reset the frame context pointed by
+ * &v4l2_ctrl_vp9_frame.frame_context_idx
+ * @V4L2_VP9_RESET_FRAME_CTX_ALL: reset all frame contexts
+ *
+ * See section '7.2 Uncompressed header semantics' of the VP9 specification for more details.
+ */
+enum v4l2_vp9_reset_frame_context {
+ V4L2_VP9_RESET_FRAME_CTX_NONE,
+ V4L2_VP9_RESET_FRAME_CTX_SPEC,
+ V4L2_VP9_RESET_FRAME_CTX_ALL,
+};
+
+/**
+ * enum v4l2_vp9_interpolation_filter - VP9 interpolation filter types
+ *
+ * @V4L2_VP9_INTERP_FILTER_EIGHTTAP: eight tap filter
+ * @V4L2_VP9_INTERP_FILTER_EIGHTTAP_SMOOTH: eight tap smooth filter
+ * @V4L2_VP9_INTERP_FILTER_EIGHTTAP_SHARP: eight tap sharp filter
+ * @V4L2_VP9_INTERP_FILTER_BILINEAR: bilinear filter
+ * @V4L2_VP9_INTERP_FILTER_SWITCHABLE: filter selection is signaled at the block level
+ *
+ * See section '7.2.7 Interpolation filter semantics' of the VP9 specification
+ * for more details.
+ */
+enum v4l2_vp9_interpolation_filter {
+ V4L2_VP9_INTERP_FILTER_EIGHTTAP,
+ V4L2_VP9_INTERP_FILTER_EIGHTTAP_SMOOTH,
+ V4L2_VP9_INTERP_FILTER_EIGHTTAP_SHARP,
+ V4L2_VP9_INTERP_FILTER_BILINEAR,
+ V4L2_VP9_INTERP_FILTER_SWITCHABLE,
+};
+
+/**
+ * enum v4l2_vp9_reference_mode - VP9 reference modes
+ *
+ * @V4L2_VP9_REFERENCE_MODE_SINGLE_REFERENCE: indicates that all the inter blocks use only a
+ * single reference frame to generate motion compensated prediction
+ * @V4L2_VP9_REFERENCE_MODE_COMPOUND_REFERENCE: requires all the inter blocks to use compound mode.
+ * Single reference frame prediction is not allowed
+ * @V4L2_VP9_REFERENCE_MODE_SELECT: allows each individual inter block to select between single
+ * and compound prediction modes
+ *
+ * See section '7.3.6 Frame reference mode semantics' of the VP9 specification
+ * for more details.
+ */
+enum v4l2_vp9_reference_mode {
+ V4L2_VP9_REFERENCE_MODE_SINGLE_REFERENCE,
+ V4L2_VP9_REFERENCE_MODE_COMPOUND_REFERENCE,
+ V4L2_VP9_REFERENCE_MODE_SELECT,
+};
+
+/**
+ * enum v4l2_vp9_tx_mode - VP9 TX modes
+ *
+ * @V4L2_VP9_TX_MODE_ONLY_4X4: transform size is 4x4
+ * @V4L2_VP9_TX_MODE_ALLOW_8X8: transform size can be up to 8x8
+ * @V4L2_VP9_TX_MODE_ALLOW_16X16: transform size can be up to 16x16
+ * @V4L2_VP9_TX_MODE_ALLOW_32X32: transform size can be up to 32x32
+ * @V4L2_VP9_TX_MODE_SELECT: bitstream contains the transform size for each block
+ *
+ * See section '7.3.1 Tx mode semantics' of the VP9 specification for more details.
+ */
+enum v4l2_vp9_tx_mode {
+ V4L2_VP9_TX_MODE_ONLY_4X4,
+ V4L2_VP9_TX_MODE_ALLOW_8X8,
+ V4L2_VP9_TX_MODE_ALLOW_16X16,
+ V4L2_VP9_TX_MODE_ALLOW_32X32,
+ V4L2_VP9_TX_MODE_SELECT,
+};
+
+/**
+ * enum v4l2_vp9_frame_flags - VP9 frame flags
+ * @V4L2_VP9_FRAME_FLAG_KEY_FRAME: the frame is a key frame
+ * @V4L2_VP9_FRAME_FLAG_SHOW_FRAME: the frame should be displayed
+ * @V4L2_VP9_FRAME_FLAG_ERROR_RESILIENT: the decoding should be error resilient
+ * @V4L2_VP9_FRAME_FLAG_INTRA_ONLY: the frame does not reference other frames
+ * @V4L2_VP9_FRAME_FLAG_ALLOW_HIGH_PREC_MV: the frame can use high precision motion vectors
+ * @V4L2_VP9_FRAME_FLAG_REFRESH_FRAME_CTX: frame context should be updated after decoding
+ * @V4L2_VP9_FRAME_FLAG_PARALLEL_DEC_MODE: parallel decoding is used
+ * @V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING: vertical subsampling is enabled
+ * @V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING: horizontal subsampling is enabled
+ * @V4L2_VP9_FRAME_FLAG_COLOR_RANGE_FULL_SWING: full UV range is used
+ *
+ * Check the VP9 specification for more details.
+ */
+enum v4l2_vp9_frame_flags {
+ V4L2_VP9_FRAME_FLAG_KEY_FRAME = 1 << 0,
+ V4L2_VP9_FRAME_FLAG_SHOW_FRAME = 1 << 1,
+ V4L2_VP9_FRAME_FLAG_ERROR_RESILIENT = 1 << 2,
+ V4L2_VP9_FRAME_FLAG_INTRA_ONLY = 1 << 3,
+ V4L2_VP9_FRAME_FLAG_ALLOW_HIGH_PREC_MV = 1 << 4,
+ V4L2_VP9_FRAME_FLAG_REFRESH_FRAME_CTX = 1 << 5,
+ V4L2_VP9_FRAME_FLAG_PARALLEL_DEC_MODE = 1 << 6,
+ V4L2_VP9_FRAME_FLAG_X_SUBSAMPLING = 1 << 7,
+ V4L2_VP9_FRAME_FLAG_Y_SUBSAMPLING = 1 << 8,
+ V4L2_VP9_FRAME_FLAG_COLOR_RANGE_FULL_SWING = 1 << 9,
+};
+
+/**
+ * enum v4l2_vp9_ref_frame_sign_bias - Whether ref_frame_sign_bias is 1 for a given reference frame
+ * @V4L2_VP9_SIGN_BIAS_LAST: ref_frame_sign_bias is 1 for the "last" reference frame
+ * @V4L2_VP9_SIGN_BIAS_GOLDEN: ref_frame_sign_bias is 1 for the "golden" reference frame
+ * @V4L2_VP9_SIGN_BIAS_ALT: ref_frame_sign_bias is 1 for the "alt" reference frame
+ */
+
+enum v4l2_vp9_ref_frame_sign_bias {
+ V4L2_VP9_SIGN_BIAS_LAST,
+ V4L2_VP9_SIGN_BIAS_GOLDEN,
+ V4L2_VP9_SIGN_BIAS_ALT,
+};
+
+#define V4L2_VP9_PROFILE_MAX 3
+
+#define V4L2_CID_STATELESS_VP9_FRAME (V4L2_CID_CODEC_STATELESS_BASE + 300)
+/**
+ * struct v4l2_ctrl_vp9_frame - VP9 frame decoding control
+ *
+ * @lf: loop filter parameters. See &v4l2_vp9_loop_filter for more details
+ * @quant: quantization parameters. See &v4l2_vp9_quantization for more details
+ * @seg: segmentation parameters. See &v4l2_vp9_segmentation for more details
+ * @flags: combination of V4L2_VP9_FRAME_FLAG_* flags
+ * @compressed_header_size: compressed header size in bytes
+ * @uncompressed_header_size: uncompressed header size in bytes
+ * @frame_width_minus_1: add 1 to it and you'll get the frame width expressed in pixels
+ * @frame_height_minus_1: add 1 to it and you'll get the frame height expressed in pixels
+ * @render_width_minus_1: add 1 to it and you'll get the expected render width expressed in
+ * pixels. This is not used during the decoding process but might be used by HW scalers
+ * to prepare a frame that's ready for scanout
+ * @render_height_minus_1: add 1 to it and you'll get the expected render height expressed in
+ * pixels. This is not used during the decoding process but might be used by HW scalers
+ * to prepare a frame that's ready for scanout
+ * @last_frame_ts: "last" reference buffer timestamp.
+ * The timestamp refers to the timestamp field in struct v4l2_buffer.
+ * Use v4l2_timeval_to_ns() to convert the struct timeval to a __u64.
+ * @golden_frame_ts: "golden" reference buffer timestamp.
+ * The timestamp refers to the timestamp field in struct v4l2_buffer.
+ * Use v4l2_timeval_to_ns() to convert the struct timeval to a __u64.
+ * @alt_frame_ts: "alt" reference buffer timestamp.
+ * The timestamp refers to the timestamp field in struct v4l2_buffer.
+ * Use v4l2_timeval_to_ns() to convert the struct timeval to a __u64.
+ * @ref_frame_sign_bias: a bitfield specifying whether the sign bias is set for a given
+ * reference frame. See &v4l2_vp9_ref_frame_sign_bias for more details.
+ * @reset_frame_context: specifies whether the frame context should be reset to default values.
+ * See &v4l2_vp9_reset_frame_context for more details
+ * @frame_context_idx: frame context that should be used/updated
+ * @profile: VP9 profile. Can be 0, 1, 2 or 3
+ * @bit_depth: bits per components. Can be 8, 10 or 12. Note that not all profiles support
+ * 10 and/or 12 bits depths
+ * @interpolation_filter: specifies the filter selection used for performing inter prediction.
+ * See &v4l2_vp9_interpolation_filter for more details
+ * @tile_cols_log2: specifies the base 2 logarithm of the width of each tile (where the width
+ * is measured in units of 8x8 blocks). Shall be less than or equal to 6
+ * @tile_rows_log2: specifies the base 2 logarithm of the height of each tile (where the height
+ * is measured in units of 8x8 blocks)
+ * @tx_mode: specifies the TX mode. See &v4l2_vp9_tx_mode for more details
+ * @reference_mode: specifies the type of inter prediction to be used. See
+ * &v4l2_vp9_reference_mode for more details
+ * @reserved: padding field. Should be zeroed by applications.
+ */
+struct v4l2_ctrl_vp9_frame {
+ struct v4l2_vp9_loop_filter lf;
+ struct v4l2_vp9_quantization quant;
+ struct v4l2_vp9_segmentation seg;
+ __u32 flags;
+ __u16 compressed_header_size;
+ __u16 uncompressed_header_size;
+ __u16 frame_width_minus_1;
+ __u16 frame_height_minus_1;
+ __u16 render_width_minus_1;
+ __u16 render_height_minus_1;
+ __u64 last_frame_ts;
+ __u64 golden_frame_ts;
+ __u64 alt_frame_ts;
+ __u8 ref_frame_sign_bias;
+ __u8 reset_frame_context;
+ __u8 frame_context_idx;
+ __u8 profile;
+ __u8 bit_depth;
+ __u8 interpolation_filter;
+ __u8 tile_cols_log2;
+ __u8 tile_rows_log2;
+ __u8 tx_mode;
+ __u8 reference_mode;
+ __u8 reserved[6];
+};
+
+#define V4L2_VP9_NUM_FRAME_CTX 4
+
+/**
+ * struct v4l2_vp9_mv_compressed_hdr_probs - VP9 Motion vector probability updates
+ * @joint: motion vector joint probability updates
+ * @sign: motion vector sign probability updates
+ * @classes: motion vector class probability updates
+ * @class0_bit: motion vector class0 bit probability updates
+ * @bits: motion vector bits probability updates
+ * @class0_fr: motion vector class0 fractional bit probability updates
+ * @fr: motion vector fractional bit probability updates
+ * @class0_hp: motion vector class0 high precision fractional bit probability updates
+ * @hp: motion vector high precision fractional bit probability updates
+ *
+ * This structure contains new values of motion vector probabilities.
+ * A value of zero in an array element means there is no update of the relevant probability.
+ * See `struct v4l2_vp9_prob_updates` for details.
+ */
+struct v4l2_vp9_mv_compressed_hdr_probs {
+ __u8 joint[3];
+ __u8 sign[2];
+ __u8 classes[2][10];
+ __u8 class0_bit[2];
+ __u8 bits[2][10];
+ __u8 class0_fr[2][2][3];
+ __u8 fr[2][3];
+ __u8 class0_hp[2];
+ __u8 hp[2];
+};
+
+#define V4L2_CID_STATELESS_VP9_COMPRESSED_HDR_PROBS (V4L2_CID_CODEC_STATELESS_BASE + 301)
+/**
+ * struct v4l2_ctrl_vp9_compressed_hdr_probs - VP9 probability updates control
+ * @tx8: TX 8x8 probability updates
+ * @tx16: TX 16x16 probability updates
+ * @tx32: TX 32x32 probability updates
+ * @coef: coefficient probability updates
+ * @skip: skip probability updates
+ * @inter_mode: inter mode probability updates
+ * @interp_filter: interpolation filter probability updates
+ * @is_inter: is inter-block probability updates
+ * @comp_mode: compound prediction mode probability updates
+ * @single_ref: single ref probability updates
+ * @comp_ref: compound ref probability updates
+ * @y_mode: Y prediction mode probability updates
+ * @uv_mode: UV prediction mode probability updates
+ * @partition: partition probability updates
+ * @mv: motion vector probability updates
+ *
+ * This structure holds the probabilities update as parsed in the compressed
+ * header (Spec 6.3). These values represent the value of probability update after
+ * being translated with inv_map_table[] (see 6.3.5). A value of zero in an array element
+ * means that there is no update of the relevant probability.
+ */
+struct v4l2_ctrl_vp9_compressed_hdr_probs {
+ __u8 tx8[2][1];
+ __u8 tx16[2][2];
+ __u8 tx32[2][3];
+ __u8 coef[4][2][2][6][6][3];
+ __u8 skip[3];
+ __u8 inter_mode[7][3];
+ __u8 interp_filter[4][2];
+ __u8 is_inter[4];
+ __u8 comp_mode[5];
+ __u8 single_ref[5][2];
+ __u8 comp_ref[5];
+ __u8 y_mode[4][9];
+ __u8 uv_mode[10][9];
+ __u8 partition[16][3];
+
+ struct v4l2_vp9_mv_compressed_hdr_probs mv;
+};
+
/* MPEG-compression definitions kept for backwards compatibility */
#ifndef __KERNEL__
#define V4L2_CTRL_CLASS_MPEG V4L2_CTRL_CLASS_CODEC
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 58392dcd3bf5..4abe4362519e 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -703,6 +703,7 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_VP8 v4l2_fourcc('V', 'P', '8', '0') /* VP8 */
#define V4L2_PIX_FMT_VP8_FRAME v4l2_fourcc('V', 'P', '8', 'F') /* VP8 parsed frame */
#define V4L2_PIX_FMT_VP9 v4l2_fourcc('V', 'P', '9', '0') /* VP9 */
+#define V4L2_PIX_FMT_VP9_FRAME v4l2_fourcc('V', 'P', '9', 'F') /* VP9 parsed frame */
#define V4L2_PIX_FMT_HEVC v4l2_fourcc('H', 'E', 'V', 'C') /* HEVC aka H.265 */
#define V4L2_PIX_FMT_FWHT v4l2_fourcc('F', 'W', 'H', 'T') /* Fast Walsh Hadamard Transform (vicodec) */
#define V4L2_PIX_FMT_FWHT_STATELESS v4l2_fourcc('S', 'F', 'W', 'H') /* Stateless FWHT (vicodec) */
@@ -1755,6 +1756,8 @@ struct v4l2_ext_control {
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;
+ struct v4l2_ctrl_vp9_compressed_hdr_probs __user *p_vp9_compressed_hdr_probs;
+ struct v4l2_ctrl_vp9_frame __user *p_vp9_frame;
void __user *ptr;
};
} __attribute__ ((packed));
@@ -1819,6 +1822,9 @@ enum v4l2_ctrl_type {
V4L2_CTRL_TYPE_MPEG2_QUANTISATION = 0x0250,
V4L2_CTRL_TYPE_MPEG2_SEQUENCE = 0x0251,
V4L2_CTRL_TYPE_MPEG2_PICTURE = 0x0252,
+
+ V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR_PROBS = 0x0260,
+ V4L2_CTRL_TYPE_VP9_FRAME = 0x0261,
};
/* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */
--
2.17.1
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