64a7eab891
DTX is now indicated by packets that may have a size of up to 2 bytes. Ref: https://git.xiph.org/?p=opus.git;a=commit;h=1c311423c86b89eba27a494e17c79fefd7d75ab0 BUG= Review-Url: https://codereview.webrtc.org/2158293003 Cr-Commit-Position: refs/heads/master@{#13736}