[vpx] Store VPXDecoder codec as an enum

Use the enum we already have here instead of converting to an int when we pass it around, giving us better type checking.

2 files changed, 5 insertions, 4 deletions

diff --git a/dom/media/platforms/agnostic/VPXDecoder.cpp b/dom/media/platforms/agnostic/VPXDecoder.cpp
index 77c81b51b..42bb86020 100644
--- a/dom/media/platforms/agnostic/VPXDecoder.cpp
+++ b/dom/media/platforms/agnostic/VPXDecoder.cpp
@@ -22,7 +22,7 @@ namespace mozilla {
 using namespace gfx;
 using namespace layers;
 
-static int MimeTypeToCodec(const nsACString& aMimeType)
+static VPXDecoder::Codec MimeTypeToCodec(const nsACString& aMimeType)
 {
   if (aMimeType.EqualsLiteral("video/webm; codecs=vp8")) {
     return VPXDecoder::Codec::VP8;
@@ -31,7 +31,7 @@ static int MimeTypeToCodec(const nsACString& aMimeType)
   } else if (aMimeType.EqualsLiteral("video/vp9")) {
     return VPXDecoder::Codec::VP9;
   }
-  return -1;
+  return VPXDecoder::Codec::Unknown;
 }
 
 VPXDecoder::VPXDecoder(const CreateDecoderParams& aParams)
diff --git a/dom/media/platforms/agnostic/VPXDecoder.h b/dom/media/platforms/agnostic/VPXDecoder.h
index d420ec069..4d57ebf94 100644
--- a/dom/media/platforms/agnostic/VPXDecoder.h
+++ b/dom/media/platforms/agnostic/VPXDecoder.h
@@ -36,7 +36,8 @@ public:
 
   enum Codec: uint8_t {
     VP8 = 1 << 0,
-    VP9 = 1 << 1
+    VP9 = 1 << 1,
+    Unknown = 1 << 7,
   };
 
   // Return true if aMimeType is a one of the strings used by our demuxers to
@@ -61,7 +62,7 @@ private:
 
   const VideoInfo& mInfo;
 
-  const int mCodec;
+  const Codec mCodec;
 };
 
 } // namespace mozilla