5 files changed, 12 insertions, 9 deletions
diff --git a/dom/media/directshow/DirectShowReader.h b/dom/media/directshow/DirectShowReader.h
index e1326d416..881b27c28 100644
--- a/dom/media/directshow/DirectShowReader.h
+++ b/dom/media/directshow/DirectShowReader.h
@@ -14,7 +14,7 @@
 #include "MP3FrameParser.h"
 
 // Add the graph to the Running Object Table so that we can connect
-// to this graph with GraphEdit/GraphStudio. Note: on Vista and up you must
+// to this graph with GraphEdit/GraphStudio. Note: you must
 // also regsvr32 proppage.dll from the Windows SDK.
 // See: http://msdn.microsoft.com/en-us/library/ms787252(VS.85).aspx
 // #define DIRECTSHOW_REGISTER_GRAPH
diff --git a/dom/media/fmp4/MP4Decoder.cpp b/dom/media/fmp4/MP4Decoder.cpp
index fdd6f2c7e..25dd53f94 100644
--- a/dom/media/fmp4/MP4Decoder.cpp
+++ b/dom/media/fmp4/MP4Decoder.cpp
@@ -139,6 +139,14 @@ MP4Decoder::CanHandleMediaType(const MediaContentType& aType,
             NS_LITERAL_CSTRING("audio/flac"), aType));
         continue;
       }
+#ifdef MOZ_AV1
+      if (IsAV1CodecString(codec)) {
+        trackInfos.AppendElement(
+          CreateTrackInfoWithMIMETypeAndContentTypeExtraParameters(
+            NS_LITERAL_CSTRING("video/av1"), aType));
+        continue;
+      }
+#endif
       // Note: Only accept H.264 in a video content type, not in an audio
       // content type.
       if (IsWhitelistedH264Codec(codec) && isMP4Video) {
diff --git a/dom/media/gmp/GMPParent.cpp b/dom/media/gmp/GMPParent.cpp
index 40c3e5141..418f14736 100644
--- a/dom/media/gmp/GMPParent.cpp
+++ b/dom/media/gmp/GMPParent.cpp
@@ -516,8 +516,7 @@ GMPCapability::Supports(const nsTArray<GMPCapability>& aCapabilities,
 #ifdef XP_WIN
         // Clearkey on Windows advertises that it can decode in its GMP info
         // file, but uses Windows Media Foundation to decode. That's not present
-        // on Windows XP, and on some Vista, Windows N, and KN variants without
-        // certain services packs.
+        // on Windows N and KN variants without certain services packs.
         if (tag.Equals(kEMEKeySystemClearkey)) {
           if (capabilities.mAPIName.EqualsLiteral(GMP_API_VIDEO_DECODER)) {
             if (!WMFDecoderModule::HasH264()) {
diff --git a/dom/media/mediasource/MediaSource.cpp b/dom/media/mediasource/MediaSource.cpp
index af541bbbb..152c0085a 100644
--- a/dom/media/mediasource/MediaSource.cpp
+++ b/dom/media/mediasource/MediaSource.cpp
@@ -62,8 +62,6 @@ namespace mozilla {
 
 // Returns true if we should enable MSE webm regardless of preferences.
 // 1. If MP4/H264 isn't supported:
-//   * Windows XP
-//   * Windows Vista and Server 2008 without the optional "Platform Update Supplement"
 //   * N/KN editions (Europe and Korea) of Windows 7/8/8.1/10 without the
 //     optional "Windows Media Feature Pack"
 // 2. If H264 hardware acceleration is not available.
diff --git a/dom/media/platforms/wmf/WMFDecoderModule.h b/dom/media/platforms/wmf/WMFDecoderModule.h
index cd7b8c660..6582f8056 100644
--- a/dom/media/platforms/wmf/WMFDecoderModule.h
+++ b/dom/media/platforms/wmf/WMFDecoderModule.h
@@ -40,10 +40,8 @@ public:
   static int GetNumDecoderThreads();
 
   // Accessors that report whether we have the required MFTs available
-  // on the system to play various codecs. Windows Vista doesn't have the
-  // H.264/AAC decoders if the "Platform Update Supplement for Windows Vista"
-  // is not installed, and Window N and KN variants also require a "Media
-  // Feature Pack" to be installed. Windows XP doesn't have WMF.
+  // on the system to play various codecs. Windows N and KN variants
+  // require a "Media Feature Pack" to be installed.
   static bool HasAAC();
   static bool HasH264();