drivers/media/platform/vicodec/codec-v4l2-fwht.h

   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
  11 struct 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
  26 struct 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
  50 const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_pixfmt(u32 pixelformat);
  51 const struct v4l2_fwht_pixfmt_info *v4l2_fwht_get_pixfmt(u32 idx);
  52 bool v4l2_fwht_validate_fmt(const struct v4l2_fwht_pixfmt_info *info,
  53                             u32 width_div, u32 height_div, u32 components_num,
  54                             u32 pixenc);
  55 const 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
  61 int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out);
  62 int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out);
  63
  64 #endif