69 lines
2.6 KiB
C
69 lines
2.6 KiB
C
/*
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* Copyright (C) 2019 Rockchip Electronics Co., Ltd.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL), available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "yuv.h"
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void NV12_to_YUYV(int width, int height, void* src, void* dst)
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{
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int i = 0, j = 0;
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int* src_y = (int*)src;
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int* src_uv = (int*)((char*)src + width * height);
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int* line = (int*)dst;
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for (j = 0; j < height; j++) {
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if (j % 2 != 0)
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src_uv -= width >> 2;
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for (i = 0; i<width >> 2; i++) {
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*line++ = ((*src_y & 0x000000ff)) | ((*src_y & 0x0000ff00) << 8) |
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((*src_uv & 0x000000ff) << 8) | ((*src_uv & 0x0000ff00) << 16);
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*line++ = ((*src_y & 0x00ff0000) >> 16) | ((*src_y & 0xff000000) >> 8) |
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((*src_uv & 0x00ff0000) >> 8) | ((*src_uv & 0xff000000));
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src_y++;
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src_uv++;
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}
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}
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}
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void raw16_to_raw8(int width, int height, void* src, void* dst)
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{
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unsigned int i, j;
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unsigned int *buf_src, *buf_dst;
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unsigned int cycle;
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buf_src = (unsigned int*)src;
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buf_dst = (unsigned int*)dst;
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cycle = width * height * 2 * 2 / 8;
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for (i = 0, j = 0; j < cycle; j++, i += 2)
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buf_dst[j] = ((buf_src[i] | (buf_src[i] >> 8)) & 0x0000FFFF) | \
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((buf_src[i+1] << 8 | (buf_src[i+1] << 16)) & 0xFFFF0000);
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}
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