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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * These are the VP8 state controls for use with stateless VP8
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 _VP8_CTRLS_H_
12#define _VP8_CTRLS_H_
13
14#include <linux/types.h>
15
16#define V4L2_PIX_FMT_VP8_FRAME v4l2_fourcc('V', 'P', '8', 'F')
17
18#define V4L2_CID_MPEG_VIDEO_VP8_FRAME_HEADER (V4L2_CID_CODEC_BASE + 2000)
19#define V4L2_CTRL_TYPE_VP8_FRAME_HEADER 0x301
20
21#define V4L2_VP8_SEGMENT_HEADER_FLAG_ENABLED 0x01
22#define V4L2_VP8_SEGMENT_HEADER_FLAG_UPDATE_MAP 0x02
23#define V4L2_VP8_SEGMENT_HEADER_FLAG_UPDATE_FEATURE_DATA 0x04
24#define V4L2_VP8_SEGMENT_HEADER_FLAG_DELTA_VALUE_MODE 0x08
25
26struct v4l2_vp8_segment_header {
27 __s8 quant_update[4];
28 __s8 lf_update[4];
29 __u8 segment_probs[3];
30 __u8 padding;
31 __u32 flags;
32};
33
34#define V4L2_VP8_LF_HEADER_ADJ_ENABLE 0x01
35#define V4L2_VP8_LF_HEADER_DELTA_UPDATE 0x02
36#define V4L2_VP8_LF_FILTER_TYPE_SIMPLE 0x04
37struct v4l2_vp8_loopfilter_header {
38 __s8 ref_frm_delta[4];
39 __s8 mb_mode_delta[4];
40 __u8 sharpness_level;
41 __u8 level;
42 __u16 padding;
43 __u32 flags;
44};
45
46struct v4l2_vp8_quantization_header {
47 __u8 y_ac_qi;
48 __s8 y_dc_delta;
49 __s8 y2_dc_delta;
50 __s8 y2_ac_delta;
51 __s8 uv_dc_delta;
52 __s8 uv_ac_delta;
53 __u16 padding;
54};
55
56#define V4L2_VP8_COEFF_PROB_CNT 11
57#define V4L2_VP8_MV_PROB_CNT 19
58struct v4l2_vp8_entropy_header {
59 __u8 coeff_probs[4][8][3][V4L2_VP8_COEFF_PROB_CNT];
60 __u8 y_mode_probs[4];
61 __u8 uv_mode_probs[3];
62 __u8 mv_probs[2][V4L2_VP8_MV_PROB_CNT];
63 __u8 padding[3];
64};
65
66struct v4l2_vp8_entropy_coder_state {
67 __u8 range;
68 __u8 value;
69 __u8 bit_count;
70 __u8 padding;
71};
72
73#define V4L2_VP8_FRAME_HEADER_FLAG_KEY_FRAME 0x01
74#define V4L2_VP8_FRAME_HEADER_FLAG_EXPERIMENTAL 0x02
75#define V4L2_VP8_FRAME_HEADER_FLAG_SHOW_FRAME 0x04
76#define V4L2_VP8_FRAME_HEADER_FLAG_MB_NO_SKIP_COEFF 0x08
77#define V4L2_VP8_FRAME_HEADER_FLAG_SIGN_BIAS_GOLDEN 0x10
78#define V4L2_VP8_FRAME_HEADER_FLAG_SIGN_BIAS_ALT 0x20
79
80#define VP8_FRAME_IS_KEY_FRAME(hdr) \
81 (!!((hdr)->flags & V4L2_VP8_FRAME_HEADER_FLAG_KEY_FRAME))
82
83struct v4l2_ctrl_vp8_frame_header {
84 struct v4l2_vp8_segment_header segment_header;
85 struct v4l2_vp8_loopfilter_header lf_header;
86 struct v4l2_vp8_quantization_header quant_header;
87 struct v4l2_vp8_entropy_header entropy_header;
88 struct v4l2_vp8_entropy_coder_state coder_state;
89
90 __u16 width;
91 __u16 height;
92
93 __u8 horizontal_scale;
94 __u8 vertical_scale;
95
96 __u8 version;
97 __u8 prob_skip_false;
98 __u8 prob_intra;
99 __u8 prob_last;
100 __u8 prob_gf;
101 __u8 num_dct_parts;
102
103 __u32 first_part_size;
104 __u32 first_part_header_bits;
105 __u32 dct_part_sizes[8];
106
107 __u64 last_frame_ts;
108 __u64 golden_frame_ts;
109 __u64 alt_frame_ts;
110
111 __u64 flags;
112};
113
114#endif