temp function to expose mutable payload (needed for vp8 parse)
temp function to expose mutable payload (needed for vp8 parse)

jitsi/jitsi-videobridge,jitsi/jitsi-videobridge,jitsi/jitsi-videobridge,jitsi/jitsi-videobridge,jitsi/jitsi-videobridge,jitsi/jitsi-videobridge,jitsi/jitsi-videobridge