You've already forked FFmpeg
mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-10-06 05:47:18 +02:00
39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
/*
|
|
* 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;
|
|
}
|