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| author | Michael Niedermayer <michael@niedermayer.cc> | 2016-05-19 18:02:53 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-05-19 18:13:29 +0200 |
| commit | 7ecfe4dc363435c81e66dd14881dc0b0ccc73fb1 (patch) | |
| tree | e3db88c9379742d7b4490142d770cc59ed95e0b0 | |
| parent | 7494b49780b2f97f85459044306fdfdf00c8ae5d (diff) | |
| download | ffmpeg-7ecfe4dc363435c81e66dd14881dc0b0ccc73fb1.tar.gz | |
avcodec/diracdec: Fix potential integer overflow
Fixes CID1361948
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/diracdec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/diracdec.c b/libavcodec/diracdec.c index 05c79005eb..1d7bb9b98b 100644 --- a/libavcodec/diracdec.c +++ b/libavcodec/diracdec.c @@ -903,8 +903,8 @@ static int decode_lowdelay(DiracContext *s) } else { for (slice_y = 0; bufsize > 0 && slice_y < s->num_y; slice_y++) { for (slice_x = 0; bufsize > 0 && slice_x < s->num_x; slice_x++) { - bytes = (slice_num+1) * s->lowdelay.bytes.num / s->lowdelay.bytes.den - - slice_num * s->lowdelay.bytes.num / s->lowdelay.bytes.den; + bytes = (slice_num+1) * (int64_t)s->lowdelay.bytes.num / s->lowdelay.bytes.den + - slice_num * (int64_t)s->lowdelay.bytes.num / s->lowdelay.bytes.den; slices[slice_num].bytes = bytes; slices[slice_num].slice_x = slice_x; slices[slice_num].slice_y = slice_y; |