1/* SPDX-License-Identifier: LGPL-2.1 */
2/*
3 * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
4 */
5
6#ifndef CODEC_V4L2_FWHT_H
7#define CODEC_V4L2_FWHT_H
8
9#include "codec-fwht.h"
10
11struct v4l2_fwht_pixfmt_info {
12	u32 id;
13	unsigned int bytesperline_mult;
14	unsigned int sizeimage_mult;
15	unsigned int sizeimage_div;
16	unsigned int luma_alpha_step;
17	unsigned int chroma_step;
18	/* Chroma plane subsampling */
19	unsigned int width_div;
20	unsigned int height_div;
21	unsigned int components_num;
22	unsigned int planes_num;
23	unsigned int pixenc;
24};
25
26struct v4l2_fwht_state {
27	const struct v4l2_fwht_pixfmt_info *info;
28	unsigned int visible_width;
29	unsigned int visible_height;
30	unsigned int coded_width;
31	unsigned int coded_height;
32	unsigned int stride;
33	unsigned int ref_stride;
34	unsigned int gop_size;
35	unsigned int gop_cnt;
36	u16 i_frame_qp;
37	u16 p_frame_qp;
38
39	enum v4l2_colorspace colorspace;
40	enum v4l2_ycbcr_encoding ycbcr_enc;
41	enum v4l2_xfer_func xfer_func;
42	enum v4l2_quantization quantization;
43
44	struct fwht_raw_frame ref_frame;
45	struct fwht_cframe_hdr header;
46	u8 *compressed_frame;
47	u64 ref_frame_ts;
48};
49
50const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_pixfmt(u32 pixelformat);
51const struct v4l2_fwht_pixfmt_info *v4l2_fwht_get_pixfmt(u32 idx);
52bool v4l2_fwht_validate_fmt(const struct v4l2_fwht_pixfmt_info *info,
53			    u32 width_div, u32 height_div, u32 components_num,
54			    u32 pixenc);
55const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_nth_fmt(u32 width_div,
56							  u32 height_div,
57							  u32 components_num,
58							  u32 pixenc,
59							  unsigned int start_idx);
60
61int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out);
62int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out);
63
64#endif
65