VCMEncodedFrame: add basic support for AV1.

This change adds basic support for setting codecType kVideoCodecAV1 in
VCMEncodedFrames.

Bug: chromium:1191972
Change-Id: I258b39ff89c8b92ebbb288ef32c88b900a35d10e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/213182
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Markus Handell <handellm@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33594}
diff --git a/modules/video_coding/encoded_frame.cc b/modules/video_coding/encoded_frame.cc
index f7d666b..637a20c 100644
--- a/modules/video_coding/encoded_frame.cc
+++ b/modules/video_coding/encoded_frame.cc
@@ -136,6 +136,10 @@
         _codecSpecificInfo.codecType = kVideoCodecH264;
         break;
       }
+      case kVideoCodecAV1: {
+        _codecSpecificInfo.codecType = kVideoCodecAV1;
+        break;
+      }
       default: {
         _codecSpecificInfo.codecType = kVideoCodecGeneric;
         break;