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| author | Vitaly Buka <vitalybuka-at-google.com@ffmpeg.org> | 2017-08-20 11:56:47 -0700 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-23 03:17:11 +0200 |
| commit | 8c2bb10ddfef1f151b9455d152c9aca91140a4b0 (patch) | |
| tree | e0a174f0d7fef9de4d5cc60dd38120eaeba4a6a6 /libavcodec/utils.c | |
| parent | f3913dcc06854dbaf90890fa5853638e057b9bb1 (diff) | |
| download | ffmpeg-8c2bb10ddfef1f151b9455d152c9aca91140a4b0.tar.gz | |
avcodec/utils: Fix signed integer overflow in rc_initial_buffer_occupancy initialization
Signed integer overflow is undefined behavior.
Detected with clang and -fsanitize=signed-integer-overflow
Signed-off-by: Vitaly Buka <vitalybuka@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/utils.c')
| -rw-r--r-- | libavcodec/utils.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c index 1336e921c9..1b8ad1d200 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -971,7 +971,7 @@ FF_ENABLE_DEPRECATION_WARNINGS } if (!avctx->rc_initial_buffer_occupancy) - avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4; + avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3LL / 4; if (avctx->ticks_per_frame && avctx->time_base.num && avctx->ticks_per_frame > INT_MAX / avctx->time_base.num) { |