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https://github.com/FFmpeg/FFmpeg.git
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d6945aeee4
Fixes: signed integer overflow: 512 + 2147483491 cannot be represented in type 'int' Fixes: 4780/clusterfuzz-testcase-minimized-4709066174627840 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/*
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* H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
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* Copyright (c) 2003-2011 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* H.264 / AVC / MPEG-4 part10 DSP functions.
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* @author Michael Niedermayer <michaelni@gmx.at>
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*/
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#include "bit_depth_template.c"
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static void FUNCC(ff_h264_add_pixels4)(uint8_t *_dst, int16_t *_src, int stride)
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{
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int i;
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pixel *dst = (pixel *) _dst;
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dctcoef *src = (dctcoef *) _src;
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stride /= sizeof(pixel);
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for (i = 0; i < 4; i++) {
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dst[0] += (unsigned)src[0];
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dst[1] += (unsigned)src[1];
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dst[2] += (unsigned)src[2];
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dst[3] += (unsigned)src[3];
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dst += stride;
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src += 4;
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}
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memset(_src, 0, sizeof(dctcoef) * 16);
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}
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static void FUNCC(ff_h264_add_pixels8)(uint8_t *_dst, int16_t *_src, int stride)
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{
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int i;
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pixel *dst = (pixel *) _dst;
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dctcoef *src = (dctcoef *) _src;
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stride /= sizeof(pixel);
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for (i = 0; i < 8; i++) {
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dst[0] += (unsigned)src[0];
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dst[1] += (unsigned)src[1];
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dst[2] += (unsigned)src[2];
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dst[3] += (unsigned)src[3];
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dst[4] += (unsigned)src[4];
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dst[5] += (unsigned)src[5];
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dst[6] += (unsigned)src[6];
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dst[7] += (unsigned)src[7];
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dst += stride;
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src += 8;
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}
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memset(_src, 0, sizeof(dctcoef) * 64);
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}
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