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

source code of linux/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.h