12-bit vp9 video support

media/base/video_types.cc

Index: media/base/video_types.cc
diff --git a/media/base/video_types.cc b/media/base/video_types.cc
index f8eeb3e1bb433e03cf390223173204664806611e..5da948562e2dc1c7981b49abde06f0d732f97286 100644
--- a/media/base/video_types.cc
+++ b/media/base/video_types.cc
@@ -54,6 +54,12 @@ std::string VideoPixelFormatToString(VideoPixelFormat format) {
       return "PIXEL_FORMAT_YUV444P9";
     case PIXEL_FORMAT_YUV444P10:
       return "PIXEL_FORMAT_YUV444P10";
+    case PIXEL_FORMAT_YUV420P12:
+      return "PIXEL_FORMAT_YUV420P12";
+    case PIXEL_FORMAT_YUV422P12:
+      return "PIXEL_FORMAT_YUV422P12";
+    case PIXEL_FORMAT_YUV444P12:
+      return "PIXEL_FORMAT_YUV444P12";
   }
   NOTREACHED() << "Invalid VideoPixelFormat provided: " << format;
   return "";
@@ -75,6 +81,9 @@ bool IsYuvPlanar(VideoPixelFormat format) {
     case PIXEL_FORMAT_YUV422P10:
     case PIXEL_FORMAT_YUV444P9:
     case PIXEL_FORMAT_YUV444P10:
+    case PIXEL_FORMAT_YUV420P12:
+    case PIXEL_FORMAT_YUV422P12:
+    case PIXEL_FORMAT_YUV444P12:
       return true;
 
     case PIXEL_FORMAT_UNKNOWN:
@@ -111,6 +120,9 @@ bool IsOpaque(VideoPixelFormat format) {
     case PIXEL_FORMAT_YUV422P10:
     case PIXEL_FORMAT_YUV444P9:
     case PIXEL_FORMAT_YUV444P10:
+    case PIXEL_FORMAT_YUV420P12:
+    case PIXEL_FORMAT_YUV422P12:
+    case PIXEL_FORMAT_YUV444P12:
       return true;
     case PIXEL_FORMAT_YV12A:
     case PIXEL_FORMAT_ARGB: