virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

avcodec/h264_cabac: Tighten allowed coeff_abs range

Browse Source 
Fixes: integer overflows
Reported-by: "Xiaohan Wang (王消寒)" <xhwang@chromium.org>

Based on limits in "8.5 Transform coefficient decoding process and picture
construction process prior to deblocking  filter process"

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f26a63c4ee)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-02-14 00:32:30 +01:00
parent d4f9119532
commit 340c315c67
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/h264_cabac.c
View File

@ -1736,7 +1736,7 @@ decode_cabac_residual_internal(const H264Context *h, H264SliceContext *sl,
\
if( coeff_abs >= 15 ) { \
int j = 0; \
while (get_cabac_bypass(CC) && j < 30) { \
while (get_cabac_bypass(CC) && j < 16+7) { \
j++; \
} \
\