60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* SPDX-License-Identifier: LGPL-2.1 */
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/*
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* Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
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*/
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#ifndef CODEC_V4L2_FWHT_H
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#define CODEC_V4L2_FWHT_H
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#include "codec-fwht.h"
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struct v4l2_fwht_pixfmt_info {
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u32 id;
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unsigned int bytesperline_mult;
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unsigned int sizeimage_mult;
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unsigned int sizeimage_div;
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unsigned int luma_alpha_step;
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unsigned int chroma_step;
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/* Chroma plane subsampling */
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unsigned int width_div;
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unsigned int height_div;
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unsigned int components_num;
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unsigned int planes_num;
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unsigned int pixenc;
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};
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struct v4l2_fwht_state {
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const struct v4l2_fwht_pixfmt_info *info;
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unsigned int visible_width;
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unsigned int visible_height;
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unsigned int coded_width;
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unsigned int coded_height;
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unsigned int stride;
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unsigned int gop_size;
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unsigned int gop_cnt;
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u16 i_frame_qp;
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u16 p_frame_qp;
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enum v4l2_colorspace colorspace;
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enum v4l2_ycbcr_encoding ycbcr_enc;
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enum v4l2_xfer_func xfer_func;
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enum v4l2_quantization quantization;
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struct fwht_raw_frame ref_frame;
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struct fwht_cframe_hdr header;
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u8 *compressed_frame;
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};
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const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_pixfmt(u32 pixelformat);
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const struct v4l2_fwht_pixfmt_info *v4l2_fwht_get_pixfmt(u32 idx);
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const struct v4l2_fwht_pixfmt_info *v4l2_fwht_default_fmt(u32 width_div,
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u32 height_div,
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u32 components_num,
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u32 pixenc,
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unsigned int start_idx);
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int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out);
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int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out);
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#endif
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