1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * These are the MPEG2 state controls for use with stateless MPEG-2
 4 * codec drivers.
 5 *
 6 * It turns out that these structs are not stable yet and will undergo
 7 * more changes. So keep them private until they are stable and ready to
 8 * become part of the official public API.
 9 */
10
11#ifndef _MPEG2_CTRLS_H_
12#define _MPEG2_CTRLS_H_
13
14#define V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS		(V4L2_CID_MPEG_BASE+250)
15#define V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION		(V4L2_CID_MPEG_BASE+251)
16
17/* enum v4l2_ctrl_type type values */
18#define V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS 0x0103
19#define	V4L2_CTRL_TYPE_MPEG2_QUANTIZATION 0x0104
20
21#define V4L2_MPEG2_PICTURE_CODING_TYPE_I	1
22#define V4L2_MPEG2_PICTURE_CODING_TYPE_P	2
23#define V4L2_MPEG2_PICTURE_CODING_TYPE_B	3
24#define V4L2_MPEG2_PICTURE_CODING_TYPE_D	4
25
26struct v4l2_mpeg2_sequence {
27	/* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence header */
28	__u16	horizontal_size;
29	__u16	vertical_size;
30	__u32	vbv_buffer_size;
31
32	/* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence extension */
33	__u16	profile_and_level_indication;
34	__u8	progressive_sequence;
35	__u8	chroma_format;
36};
37
38struct v4l2_mpeg2_picture {
39	/* ISO/IEC 13818-2, ITU-T Rec. H.262: Picture header */
40	__u8	picture_coding_type;
41
42	/* ISO/IEC 13818-2, ITU-T Rec. H.262: Picture coding extension */
43	__u8	f_code[2][2];
44	__u8	intra_dc_precision;
45	__u8	picture_structure;
46	__u8	top_field_first;
47	__u8	frame_pred_frame_dct;
48	__u8	concealment_motion_vectors;
49	__u8	q_scale_type;
50	__u8	intra_vlc_format;
51	__u8	alternate_scan;
52	__u8	repeat_first_field;
53	__u16	progressive_frame;
54};
55
56struct v4l2_ctrl_mpeg2_slice_params {
57	__u32	bit_size;
58	__u32	data_bit_offset;
59	__u64	backward_ref_ts;
60	__u64	forward_ref_ts;
61
62	struct v4l2_mpeg2_sequence sequence;
63	struct v4l2_mpeg2_picture picture;
64
65	/* ISO/IEC 13818-2, ITU-T Rec. H.262: Slice */
66	__u32	quantiser_scale_code;
67};
68
69struct v4l2_ctrl_mpeg2_quantization {
70	/* ISO/IEC 13818-2, ITU-T Rec. H.262: Quant matrix extension */
71	__u8	load_intra_quantiser_matrix;
72	__u8	load_non_intra_quantiser_matrix;
73	__u8	load_chroma_intra_quantiser_matrix;
74	__u8	load_chroma_non_intra_quantiser_matrix;
75
76	__u8	intra_quantiser_matrix[64];
77	__u8	non_intra_quantiser_matrix[64];
78	__u8	chroma_intra_quantiser_matrix[64];
79	__u8	chroma_non_intra_quantiser_matrix[64];
80};
81
82#endif