linux/drivers/media/test-drivers/vicodec/codec-v4l2-fwht.c

// SPDX-License-Identifier: LGPL-2.1
/*
 * A V4L2 frontend for the FWHT codec
 *
 * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 */

#include <linux/errno.h>
#include <linux/string.h>
#include <linux/videodev2.h>
#include "codec-v4l2-fwht.h"

static const struct v4l2_fwht_pixfmt_info v4l2_fwht_pixfmts[] = …;

bool v4l2_fwht_validate_fmt(const struct v4l2_fwht_pixfmt_info *info,
			    u32 width_div, u32 height_div, u32 components_num,
			    u32 pixenc)
{ … }

const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_nth_fmt(u32 width_div,
							  u32 height_div,
							  u32 components_num,
							  u32 pixenc,
							  unsigned int start_idx)
{ … }

const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_pixfmt(u32 pixelformat)
{ … }

const struct v4l2_fwht_pixfmt_info *v4l2_fwht_get_pixfmt(u32 idx)
{ … }

static int prepare_raw_frame(struct fwht_raw_frame *rf,
			 const struct v4l2_fwht_pixfmt_info *info, u8 *buf,
			 unsigned int size)
{ … }

int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out)
{ … }

int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out)
{ … }