diff options
| author | Vitaly Buka <vitalybuka-at-google.com@ffmpeg.org> | 2017-08-20 21:56:47 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-09-17 16:57:27 +0300 |
| commit | edac232860366fc954dc93f4610f76b6062ba933 (patch) | |
| tree | 15ba85e3035dc96e1af80ac849f9180aab466e8f | |
| parent | 1fa31e28fd5d8d5c8e784b9e6c84c1ec7bffd3d4 (diff) | |
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 01d61597a8..c4af9cbb17 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -1540,7 +1540,7 @@ 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) { |