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avformat/jacosubdec: Factorize code in get_shift() a bit

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 6490b9aed63c06f20bbc46e0bc801e612d07e81e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-09-30 19:34:29 +02:00
parent 30b3f2712d
commit d35579c12b
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GPG Key ID: B18E8928B3948D64
1 changed files with 5 additions and 9 deletions
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libavformat/jacosubdec.c
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@ -143,16 +143,12 @@ static int get_shift(int timeres, const char *buf)
ret = 0;
switch (n) {
case 4:
ret = sign * (((int64_t)a*3600 + (int64_t)b*60 + c) * timeres + d);
break;
case 3:
ret = sign * (( (int64_t)a*60 + b) * timeres + c);
break;
case 2:
ret = sign * (( (int64_t)a) * timeres + b);
break;
case 1: a = 0;
case 2: c = b; b = a; a = 0;
case 3: d = c; c = b; b = a; a = 0;
}
ret = sign * (((int64_t)a*3600 + (int64_t)b*60 + c) * timeres + d);
if ((int)ret != ret)
ret = 0;