Bug 1916508 - H264 6.2 exists and is supported on some platforms. r=media-playback-reviewers,alwu

Differential Revision: https://phabricator.services.mozilla.com/D221047

dom/media/mp4/MP4Decoder.cpp

@@ -38,12 +38,12 @@ static bool IsWhitelistedH264Codec(const nsAString& aCodec) {
   // http://msdn.microsoft.com/en-us/library/windows/desktop/dd797815%28v=vs.85%29.aspx
   // "The Media Foundation H.264 video decoder is a Media Foundation Transform
   // that supports decoding of Baseline, Main, and High profiles, up to level
-  // 5.1.". We extend the limit to level 5.2, relying on the decoder to handle
+  // 5.1.". We extend the limit to level 6.2, relying on the decoder to handle
   // any potential errors, the level limit being rather arbitrary.
   // We also report that we can play Extended profile, as there are
   // bitstreams that are Extended compliant that are also Baseline compliant.
   return level >= H264_LEVEL::H264_LEVEL_1 &&
-         level <= H264_LEVEL::H264_LEVEL_5_2 &&
+         level <= H264_LEVEL::H264_LEVEL_6_2 &&
          (profile == H264_PROFILE_BASE || profile == H264_PROFILE_MAIN ||
           profile == H264_PROFILE_EXTENDED || profile == H264_PROFILE_HIGH);
 }