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avutil/timecode: Use a 64bit framenum internally

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Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself
Fixes: 68550/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-6424065930756096

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit d5ca373d7e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-07-16 21:23:40 +02:00
parent d0ce252930
commit bc1b078bd1
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1 changed files with 2 additions and 1 deletions
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libavutil/timecode.c
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@ -100,11 +100,12 @@ uint32_t av_timecode_get_smpte(AVRational rate, int drop, int hh, int mm, int ss
return tc;
}
char *av_timecode_make_string(const AVTimecode *tc, char *buf, int framenum)
char *av_timecode_make_string(const AVTimecode *tc, char *buf, int framenum_arg)
{
int fps = tc->fps;
int drop = tc->flags & AV_TIMECODE_FLAG_DROPFRAME;
int hh, mm, ss, ff, ff_len, neg = 0;
int64_t framenum = framenum_arg;
framenum += tc->start;
if (drop)