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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> | 2017-09-10 01:33:28 +0200 |
| commit | b6a79b841dcdf8edebc38579088bf48a418c82dc (patch) | |
| tree | 48fa8a7fb94ebbd51169519dad7a5bdf23f2decb | |
| parent | 6ce9b2c1fec171ff823df45e1d288eabcb79397b (diff) | |
| download | ffmpeg-b6a79b841dcdf8edebc38579088bf48a418c82dc.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>
(cherry picked from commit 8c2bb10ddfef1f151b9455d152c9aca91140a4b0)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -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 0c6883686e..9363026695 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1568,7 +1568,7 @@ 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) { |