x/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2026-07-18 09:24:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

cpu detection: avoid a signed overflow

Browse Source 
1<<31 overflows because 1 is signed, so force it to unsigned.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 5938e02185)

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Sean McGovern
2011-09-11 13:09:35 +02:00
committed by Anton Khirnov
co-authored by Anton Khirnov
parent a7d35b2f99
commit fe9dae6df8
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libavutil/x86/cpu.c
+1 -1
View File
@@ -113,7 +113,7 @@ int ff_get_cpu_flags_x86(void)
if(max_ext_level >= 0x80000001){
cpuid(0x80000001, eax, ebx, ecx, ext_caps);
if (ext_caps & (1<<31))
if (ext_caps & (1U<<31))
rval |= AV_CPU_FLAG_3DNOW;
if (ext_caps & (1<<30))
rval |= AV_CPU_FLAG_3DNOWEXT;