avformat/jacosubdec: Use 64bit for abs
Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself Fixes: 62276/clusterfuzz-testcase-minimized-ffmpeg_dem_JACOSUB_fuzzer-5401294942371840 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -150,7 +150,7 @@ static int get_shift(unsigned timeres, const char *buf)
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}
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ret = (int64_t)h*3600 + (int64_t)m*60 + s;
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if (FFABS(ret) > (INT64_MAX - FFABS(d)) / timeres)
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if (FFABS(ret) > (INT64_MAX - FFABS((int64_t)d)) / timeres)
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return 0;
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ret = sign * (ret * timeres + d);
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