J400 and J420 fourcc

BUG=159
TEST=none
Review URL: https://webrtc-codereview.appspot.com/1275007

git-svn-id: http://libyuv.googlecode.com/svn/trunk@636 16f28f9a-4ce2-e073-06de-1de4eb20be90

include/libyuv/video_common.h

@@ -84,11 +84,13 @@ enum FourCC {
   // 1 Primary Compressed YUV format.
   FOURCC_MJPG = FOURCC('M', 'J', 'P', 'G'),
 
-  // 3 Auxiliary YUV variations: 3 with U and V planes are swapped, 1 Alias.
+  // 5 Auxiliary YUV variations: 3 with U and V planes are swapped, 1 Alias.
   FOURCC_YV12 = FOURCC('Y', 'V', '1', '2'),
   FOURCC_YV16 = FOURCC('Y', 'V', '1', '6'),
   FOURCC_YV24 = FOURCC('Y', 'V', '2', '4'),
   FOURCC_YU12 = FOURCC('Y', 'U', '1', '2'),  // Linux version of I420.
+  FOURCC_J420 = FOURCC('J', '4', '2', '0'),
+  FOURCC_J400 = FOURCC('J', '4', '0', '0'),
 
   // 12 Auxiliary aliases.  CanonicalFourCC() maps these to canonical fourcc.
   FOURCC_IYUV = FOURCC('I', 'Y', 'U', 'V'),  // Alias for I420.
@@ -141,6 +143,8 @@ enum FourCCBpp {
   FOURCC_BPP_YV16 = 16,
   FOURCC_BPP_YV24 = 24,
   FOURCC_BPP_YU12 = 12,
+  FOURCC_BPP_J420 = 12,
+  FOURCC_BPP_J400 = 8,
   FOURCC_BPP_MJPG = 0,  // 0 means unknown.
   FOURCC_BPP_H264 = 0,
   FOURCC_BPP_IYUV = 12,