[GStreamer][EME][Thunder] Add AV1 to the list of supported types to decryptor

https://bugs.webkit.org/show_bug.cgi?id=276065

Reviewed by Philippe Normand.

Add AV1 to the decryptor caps.

Patch by Eugene Mutavchi <Ievgen_Mutavchi@comcast.com>.

* Source/WebCore/platform/graphics/gstreamer/eme/WebKitThunderDecryptorGStreamer.cpp:

Canonical link: https://commits.webkit.org/280528@main

Author: calvaris

Source/WebCore/platform/graphics/gstreamer/eme/WebKitThunderDecryptorGStreamer.cpp

@@ -47,8 +47,8 @@ GST_DEBUG_CATEGORY(webkitMediaThunderDecryptDebugCategory);
 #define GST_CAT_DEFAULT webkitMediaThunderDecryptDebugCategory
 
 static const char* cencEncryptionMediaTypes[] = { "video/mp4", "audio/mp4", "video/x-h264", "video/x-h265", "audio/mpeg",
-    "audio/x-eac3", "audio/x-ac3", "audio/x-flac", "audio/x-opus", "video/x-vp9", nullptr };
-static const char* webmEncryptionMediaTypes[] = { "video/webm", "audio/webm", "video/x-vp9", "audio/x-opus", "audio/x-vorbis", "video/x-vp8", nullptr };
+    "audio/x-eac3", "audio/x-ac3", "audio/x-flac", "audio/x-opus", "video/x-vp9", "video/x-av1", nullptr };
+static const char* webmEncryptionMediaTypes[] = { "video/webm", "audio/webm", "video/x-vp9", "video/x-av1", "audio/x-opus", "audio/x-vorbis", "video/x-vp8", nullptr };
 
 static GstStaticPadTemplate srcTemplate = GST_STATIC_PAD_TEMPLATE("src",
     GST_PAD_SRC,
@@ -64,7 +64,8 @@ static GstStaticPadTemplate srcTemplate = GST_STATIC_PAD_TEMPLATE("src",
         "audio/x-ac3; "
         "video/x-h264; "
         "video/x-h265; "
-        "video/x-vp9; video/x-vp8;"
+        "video/x-vp9; video/x-vp8; "
+        "video/x-av1; "
         "audio/x-opus; audio/x-vorbis"));
 
 #define webkit_media_thunder_decrypt_parent_class parent_class