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/*
* Copyright (c) 2025 Michael Niedermayer
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/frame.h"
#include "libavutil/adler32.h"
#include "test_utils.h"
int64_t ff_chksum(AVFrame *f)
{
AVAdler a = 123;
for(int y=0; y<f->height; y++) {
a = av_adler32_update(a, &f->data[0][y*f->linesize[0]], f->width);
}
for(int y=0; y<(f->height+1)/2; y++) {
a = av_adler32_update(a, &f->data[1][y*f->linesize[1]], (f->width+1)/2);
a = av_adler32_update(a, &f->data[2][y*f->linesize[2]], (f->width+1)/2);
}
return a;
}
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