diff --git a/README.chromium b/README.chromium
index e275ff542..c02369355 100644
--- a/README.chromium
+++ b/README.chromium
@@ -1,6 +1,6 @@
 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 933
+Version: 934
 License: BSD
 License File: LICENSE
 
diff --git a/include/libyuv/version.h b/include/libyuv/version.h
index 709e30293..a00b805fd 100644
--- a/include/libyuv/version.h
+++ b/include/libyuv/version.h
@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 933
+#define LIBYUV_VERSION 934
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT
diff --git a/source/video_common.cc b/source/video_common.cc
index 8294b913e..0b8cc1537 100644
--- a/source/video_common.cc
+++ b/source/video_common.cc
@@ -28,16 +28,19 @@ static const FourCCAliasEntry kFourCCAliases[] = {
   {FOURCC_YU16, FOURCC_I422},
   {FOURCC_YU24, FOURCC_I444},
   {FOURCC_YUYV, FOURCC_YUY2},
-  {FOURCC_YUVS, FOURCC_YUY2},
+  {FOURCC_YUVS, FOURCC_YUY2},  // kCMPixelFormat_422YpCbCr8_yuvs
   {FOURCC_HDYC, FOURCC_UYVY},
-  {FOURCC_2VUY, FOURCC_UYVY},
+  {FOURCC_2VUY, FOURCC_UYVY},  // kCMPixelFormat_422YpCbCr8
   {FOURCC_JPEG, FOURCC_MJPG},  // Note: JPEG has DHT while MJPG does not.
   {FOURCC_DMB1, FOURCC_MJPG},
   {FOURCC_BA81, FOURCC_BGGR},
-  {FOURCC_RGB3, FOURCC_RAW},
+  {FOURCC_RGB3, FOURCC_RAW },
   {FOURCC_BGR3, FOURCC_24BG},
-  {FOURCC_CM32, FOURCC_BGRA},
-  {FOURCC_CM24, FOURCC_RAW},
+  {FOURCC_CM32, FOURCC_BGRA},  // kCMPixelFormat_32ARGB
+  {FOURCC_CM24, FOURCC_RAW },  // kCMPixelFormat_24RGB
+#if defined(__APPLE__)
+  {FOURCC_BGRA, FOURCC_ARGB},  // kCMPixelFormat_32BGRA
+#endif
 };
 
 LIBYUV_API
diff --git a/unit_test/video_common_test.cc b/unit_test/video_common_test.cc
index 379d89013..8b451f0ce 100644
--- a/unit_test/video_common_test.cc
+++ b/unit_test/video_common_test.cc
@@ -52,10 +52,15 @@ TEST_F(libyuvTest, TestCanonicalFourCC) {
   EXPECT_EQ(FOURCC_MJPG, CanonicalFourCC(FOURCC_JPEG));
   EXPECT_EQ(FOURCC_MJPG, CanonicalFourCC(FOURCC_DMB1));
   EXPECT_EQ(FOURCC_BGGR, CanonicalFourCC(FOURCC_BA81));
-  EXPECT_EQ(FOURCC_RAW, CanonicalFourCC(FOURCC_RGB3));
+  EXPECT_EQ(FOURCC_RAW,  CanonicalFourCC(FOURCC_RGB3));
   EXPECT_EQ(FOURCC_24BG, CanonicalFourCC(FOURCC_BGR3));
   EXPECT_EQ(FOURCC_BGRA, CanonicalFourCC(FOURCC_CM32));
-  EXPECT_EQ(FOURCC_RAW, CanonicalFourCC(FOURCC_CM24));
+  EXPECT_EQ(FOURCC_RAW,  CanonicalFourCC(FOURCC_CM24));
+#if defined(__APPLE__)
+  EXPECT_EQ(FOURCC_ARGB, CanonicalFourCC(FOURCC_BGRA));
+#else
+  EXPECT_EQ(FOURCC_BGRA, CanonicalFourCC(FOURCC_BGRA));
+#endif
 }
 
 TEST_F(libyuvTest, TestFourCC) {
@@ -75,7 +80,7 @@ TEST_F(libyuvTest, TestFourCC) {
   EXPECT_TRUE(TestValidFourCC(FOURCC_BGRA, FOURCC_BPP_BGRA));
   EXPECT_TRUE(TestValidFourCC(FOURCC_ABGR, FOURCC_BPP_ABGR));
   EXPECT_TRUE(TestValidFourCC(FOURCC_24BG, FOURCC_BPP_24BG));
-  EXPECT_TRUE(TestValidFourCC(FOURCC_RAW, FOURCC_BPP_RAW));
+  EXPECT_TRUE(TestValidFourCC(FOURCC_RAW,  FOURCC_BPP_RAW));
   EXPECT_TRUE(TestValidFourCC(FOURCC_RGBA, FOURCC_BPP_RGBA));
   EXPECT_TRUE(TestValidFourCC(FOURCC_RGBP, FOURCC_BPP_RGBP));
   EXPECT_TRUE(TestValidFourCC(FOURCC_RGBO, FOURCC_BPP_RGBO));
@@ -102,7 +107,7 @@ TEST_F(libyuvTest, TestFourCC) {
   EXPECT_TRUE(TestValidFourCC(FOURCC_RGB3, FOURCC_BPP_RGB3));
   EXPECT_TRUE(TestValidFourCC(FOURCC_BGR3, FOURCC_BPP_BGR3));
   EXPECT_TRUE(TestValidFourCC(FOURCC_H264, FOURCC_BPP_H264));
-  EXPECT_TRUE(TestValidFourCC(FOURCC_ANY, FOURCC_BPP_ANY));
+  EXPECT_TRUE(TestValidFourCC(FOURCC_ANY,  FOURCC_BPP_ANY));
 }
 
 }  // namespace libyuv