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2f0968827a
Move the MPEG-2 stateless control types out of staging, and re-number it to avoid any confusion. 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>
127 lines
4.7 KiB
C
127 lines
4.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* These are the MPEG2 state controls for use with stateless MPEG-2
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* codec drivers.
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*
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* It turns out that these structs are not stable yet and will undergo
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* more changes. So keep them private until they are stable and ready to
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* become part of the official public API.
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*/
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#ifndef _MPEG2_CTRLS_H_
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#define _MPEG2_CTRLS_H_
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#define V4L2_CID_MPEG_VIDEO_MPEG2_QUANTISATION (V4L2_CID_CODEC_BASE+251)
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#define V4L2_CID_MPEG_VIDEO_MPEG2_SEQUENCE (V4L2_CID_CODEC_BASE+252)
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#define V4L2_CID_MPEG_VIDEO_MPEG2_PICTURE (V4L2_CID_CODEC_BASE+253)
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/* enum v4l2_ctrl_type type values */
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#define V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE 0x01
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/**
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* struct v4l2_ctrl_mpeg2_sequence - MPEG-2 sequence header
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*
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* All the members on this structure match the sequence header and sequence
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* extension syntaxes as specified by the MPEG-2 specification.
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*
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* Fields horizontal_size, vertical_size and vbv_buffer_size are a
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* combination of respective _value and extension syntax elements,
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* as described in section 6.3.3 "Sequence header".
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*
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* @horizontal_size: combination of elements horizontal_size_value and
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* horizontal_size_extension.
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* @vertical_size: combination of elements vertical_size_value and
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* vertical_size_extension.
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* @vbv_buffer_size: combination of elements vbv_buffer_size_value and
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* vbv_buffer_size_extension.
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* @profile_and_level_indication: see MPEG-2 specification.
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* @chroma_format: see MPEG-2 specification.
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* @flags: see V4L2_MPEG2_SEQ_FLAG_{}.
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*/
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struct v4l2_ctrl_mpeg2_sequence {
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__u16 horizontal_size;
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__u16 vertical_size;
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__u32 vbv_buffer_size;
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__u16 profile_and_level_indication;
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__u8 chroma_format;
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__u8 flags;
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};
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#define V4L2_MPEG2_PIC_CODING_TYPE_I 1
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#define V4L2_MPEG2_PIC_CODING_TYPE_P 2
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#define V4L2_MPEG2_PIC_CODING_TYPE_B 3
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#define V4L2_MPEG2_PIC_CODING_TYPE_D 4
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#define V4L2_MPEG2_PIC_TOP_FIELD 0x1
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#define V4L2_MPEG2_PIC_BOTTOM_FIELD 0x2
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#define V4L2_MPEG2_PIC_FRAME 0x3
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#define V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST 0x0001
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#define V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT 0x0002
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#define V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV 0x0004
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#define V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE 0x0008
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#define V4L2_MPEG2_PIC_FLAG_INTRA_VLC 0x0010
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#define V4L2_MPEG2_PIC_FLAG_ALT_SCAN 0x0020
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#define V4L2_MPEG2_PIC_FLAG_REPEAT_FIRST 0x0040
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#define V4L2_MPEG2_PIC_FLAG_PROGRESSIVE 0x0080
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/**
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* struct v4l2_ctrl_mpeg2_picture - MPEG-2 picture header
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*
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* All the members on this structure match the picture header and picture
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* coding extension syntaxes as specified by the MPEG-2 specification.
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*
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* @backward_ref_ts: timestamp of the V4L2 capture buffer to use as
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* reference for backward prediction.
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* @forward_ref_ts: timestamp of the V4L2 capture buffer to use as
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* reference for forward prediction. These timestamp refers to the
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* timestamp field in struct v4l2_buffer. Use v4l2_timeval_to_ns()
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* to convert the struct timeval to a __u64.
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* @flags: see V4L2_MPEG2_PIC_FLAG_{}.
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* @f_code[2][2]: see MPEG-2 specification.
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* @picture_coding_type: see MPEG-2 specification.
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* @picture_structure: see V4L2_MPEG2_PIC_{}_FIELD.
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* @intra_dc_precision: see MPEG-2 specification.
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* @reserved: padding field. Should be zeroed by applications.
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*/
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struct v4l2_ctrl_mpeg2_picture {
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__u64 backward_ref_ts;
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__u64 forward_ref_ts;
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__u32 flags;
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__u8 f_code[2][2];
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__u8 picture_coding_type;
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__u8 picture_structure;
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__u8 intra_dc_precision;
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__u8 reserved[5];
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};
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/**
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* struct v4l2_ctrl_mpeg2_quantisation - MPEG-2 quantisation
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*
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* Quantization matrices as specified by section 6.3.7
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* "Quant matrix extension".
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*
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* @intra_quantiser_matrix: The quantisation matrix coefficients
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* for intra-coded frames, in zigzag scanning order. It is relevant
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* for both luma and chroma components, although it can be superseded
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* by the chroma-specific matrix for non-4:2:0 YUV formats.
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* @non_intra_quantiser_matrix: The quantisation matrix coefficients
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* for non-intra-coded frames, in zigzag scanning order. It is relevant
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* for both luma and chroma components, although it can be superseded
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* by the chroma-specific matrix for non-4:2:0 YUV formats.
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* @chroma_intra_quantiser_matrix: The quantisation matrix coefficients
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* for the chominance component of intra-coded frames, in zigzag scanning
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* order. Only relevant for 4:2:2 and 4:4:4 YUV formats.
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* @chroma_non_intra_quantiser_matrix: The quantisation matrix coefficients
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* for the chrominance component of non-intra-coded frames, in zigzag scanning
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* order. Only relevant for 4:2:2 and 4:4:4 YUV formats.
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*/
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struct v4l2_ctrl_mpeg2_quantisation {
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__u8 intra_quantiser_matrix[64];
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__u8 non_intra_quantiser_matrix[64];
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__u8 chroma_intra_quantiser_matrix[64];
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__u8 chroma_non_intra_quantiser_matrix[64];
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};
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#endif
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