aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorVitaly Buka <vitalybuka-at-google.com@ffmpeg.org>2017-08-20 11:56:47 -0700
committerMichael Niedermayer <michael@niedermayer.cc>2017-09-17 12:21:32 +0200
commitfebea34f914b10e2aed177f49bfd6e9da9be5bef (patch)
tree6477d26da738ea75df55d66580fb2390a4afbe3b
parent6da5e63ba71de2dc3db547b4f56b67ce28548bdc (diff)
downloadffmpeg-febea34f914b10e2aed177f49bfd6e9da9be5bef.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.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 2d57aea469..6d6bbb7c22 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -1570,7 +1570,7 @@ 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) {