diff --git a/installer/generate_binaries.bat b/installer/generate_binaries.bat
index bf0abae3..a4cc7e30 100644
--- a/installer/generate_binaries.bat
+++ b/installer/generate_binaries.bat
@@ -49,7 +49,7 @@ copy ..\graphicscapture\graphicscapturehook\release\graphicscapturehook.dll .\32
 copy ..\graphicscapture\graphicscapturehook\x64\release\graphicscapturehook64.dll .\32bit\plugins\graphicscapture
 copy ..\injectHelper\release\injectHelper.exe .\32bit\plugins\graphicscapture
 copy ..\injectHelper\x64\release\injectHelper64.exe .\32bit\plugins\graphicscapture
-copy ..\x264\libs\32bit\libx264-144.dll .\32bit
+copy ..\x264\libs\32bit\libx264-146.dll .\32bit
 copy ..\QSVHelper\Release\QSVHelper.exe .\32bit
 copy ..\ObsNvenc\Release\ObsNvenc.dll .\32bit
 copy "%WindowsSDK80Path%Debuggers\x86\dbghelp.dll" .\32bit
@@ -74,7 +74,7 @@ copy ..\graphicscapture\graphicscapturehook\release\graphicscapturehook.dll .\64
 copy ..\graphicscapture\graphicscapturehook\x64\release\graphicscapturehook64.dll .\64bit\plugins\graphicscapture
 copy ..\injectHelper\release\injectHelper.exe .\64bit\plugins\graphicscapture
 copy ..\injectHelper\x64\release\injectHelper64.exe .\64bit\plugins\graphicscapture
-copy ..\x264\libs\64bit\libx264-144.dll .\64bit
+copy ..\x264\libs\64bit\libx264-146.dll .\64bit
 copy ..\QSVHelper\Release\QSVHelper.exe .\64bit
 copy ..\ObsNvenc\x64\Release\ObsNvenc.dll .\64bit
 copy "%WindowsSDK80Path%Debuggers\x64\dbghelp.dll" .\64bit
@@ -155,7 +155,7 @@ copy 64bit\plugins\scenesw\locale\*.txt .\upload\scenesw\64bit\scenesw\locale\
 copy 32bit\obs.exe .\upload\OBS\32bit\
 copy 32bit\obsapi.dll .\upload\OBS\32bit\
 copy 32bit\*.pdb .\upload\OBS\32bit\
-copy 32bit\libx264-144.dll .\upload\OBS\32bit
+copy 32bit\libx264-146.dll .\upload\OBS\32bit
 copy 32bit\QSVHelper.exe .\upload\OBS\32bit
 copy 32bit\ObsNvenc.dll .\upload\OBS\32bit
 copy "%WindowsSDK80Path%Debuggers\x86\dbghelp.dll" .\upload\OBS\32bit
@@ -163,7 +163,7 @@ copy "%WindowsSDK80Path%Debuggers\x86\dbghelp.dll" .\upload\OBS\32bit
 copy 64bit\obs.exe .\upload\OBS\64bit\
 copy 64bit\obsapi.dll .\upload\OBS\64bit\
 copy 64bit\*.pdb .\upload\OBS\64bit\
-copy 64bit\libx264-144.dll .\upload\OBS\64bit
+copy 64bit\libx264-146.dll .\upload\OBS\64bit
 copy 64bit\QSVHelper.exe .\upload\OBS\64bit
 copy 64bit\ObsNvenc.dll .\upload\OBS\64bit
 copy "%WindowsSDK80Path%Debuggers\x64\dbghelp.dll" .\upload\OBS\64bit
diff --git a/installer/installer.nsi b/installer/installer.nsi
index bf566d4b..4d7173f7 100644
--- a/installer/installer.nsi
+++ b/installer/installer.nsi
@@ -137,7 +137,7 @@ Section "Open Broadcaster Software" Section1
 	SetOutPath "$PROGRAMFILES32\OBS"
 	File "/oname=LICENSE" "..\COPYING"
 	File "32bit\OBS.exe"
-	File "32bit\libx264-144.dll"
+	File "32bit\libx264-146.dll"
 	File "32bit\QSVHelper.exe"
 	File "32bit\OBSApi.dll"
 	File "32bit\services.xconfig"
@@ -178,7 +178,7 @@ Section "Open Broadcaster Software" Section1
 		SetOutPath "$PROGRAMFILES64\OBS"
 		File "/oname=LICENSE" "..\COPYING"
 		File "64bit\OBS.exe"
-		File "64bit\libx264-144.dll"
+		File "64bit\libx264-146.dll"
 		File "64bit\QSVHelper.exe"
 		File "64bit\OBSApi.dll"
 		File "64bit\services.xconfig"
@@ -272,7 +272,7 @@ Section "un.OBS Program Files"
 	; Clean up Open Broadcaster Software
 	Delete "$PROGRAMFILES32\OBS\OBS.exe"
 	Delete "$PROGRAMFILES32\LICENSE"
-	Delete "$PROGRAMFILES32\OBS\libx264-144.dll"
+	Delete "$PROGRAMFILES32\OBS\libx264-146.dll"
 	Delete "$PROGRAMFILES32\OBS\QSVHelper.exe"
 	Delete "$PROGRAMFILES32\OBS\OBSApi.dll"
 	Delete "$PROGRAMFILES32\OBS\services.xconfig"
@@ -295,7 +295,7 @@ Section "un.OBS Program Files"
 	${if} ${RunningX64}
 		Delete "$PROGRAMFILES64\OBS\OBS.exe"
 		Delete "$PROGRAMFILES64\LICENSE"
-		Delete "$PROGRAMFILES64\OBS\libx264-144.dll"
+		Delete "$PROGRAMFILES64\OBS\libx264-146.dll"
 		Delete "$PROGRAMFILES64\OBS\QSVHelper.exe"
 		Delete "$PROGRAMFILES64\OBS\OBSApi.dll"
 		Delete "$PROGRAMFILES64\OBS\services.xconfig"
diff --git a/x264/libs/32bit/libx264-144.dll b/x264/libs/32bit/libx264-146.dll
similarity index 69%
rename from x264/libs/32bit/libx264-144.dll
rename to x264/libs/32bit/libx264-146.dll
index 5e715a27..9c26a047 100644
Binary files a/x264/libs/32bit/libx264-144.dll and b/x264/libs/32bit/libx264-146.dll differ
diff --git a/x264/libs/32bit/libx264.lib b/x264/libs/32bit/libx264.lib
index 4fe12659..bac7dc9b 100644
Binary files a/x264/libs/32bit/libx264.lib and b/x264/libs/32bit/libx264.lib differ
diff --git a/x264/libs/64bit/libx264-144.dll b/x264/libs/64bit/libx264-146.dll
similarity index 71%
rename from x264/libs/64bit/libx264-144.dll
rename to x264/libs/64bit/libx264-146.dll
index d7c83c83..91575146 100644
Binary files a/x264/libs/64bit/libx264-144.dll and b/x264/libs/64bit/libx264-146.dll differ
diff --git a/x264/libs/64bit/libx264.lib b/x264/libs/64bit/libx264.lib
index f67f6953..46bb2a65 100644
Binary files a/x264/libs/64bit/libx264.lib and b/x264/libs/64bit/libx264.lib differ
diff --git a/x264/x264.h b/x264/x264.h
index c3e462a4..7cc5fccf 100644
--- a/x264/x264.h
+++ b/x264/x264.h
@@ -1,7 +1,7 @@
 /*****************************************************************************
  * x264.h: x264 public header
  *****************************************************************************
- * Copyright (C) 2003-2014 x264 project
+ * Copyright (C) 2003-2015 x264 project
  *
  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
  *          Loren Merritt <lorenm@u.washington.edu>
@@ -41,7 +41,7 @@
 
 #include "x264_config.h"
 
-#define X264_BUILD 144
+#define X264_BUILD 146
 
 /* Application developers planning to link against a shared library version of
  * libx264 from a Microsoft Visual Studio or similar development environment
diff --git a/x264/x264_config.h b/x264/x264_config.h
index 6ca7d18f..fa6aea20 100644
--- a/x264/x264_config.h
+++ b/x264/x264_config.h
@@ -2,7 +2,7 @@
 #define X264_GPL           1
 #define X264_INTERLACED    0
 #define X264_CHROMA_FORMAT 0
-#define X264_REV 2525
+#define X264_REV 2538
 #define X264_REV_DIFF 0
-#define X264_VERSION " r2525 40bb568"
-#define X264_POINTVER "0.144.2525 40bb568"
+#define X264_VERSION " r2538 121396c"
+#define X264_POINTVER "0.146.2538 121396c"