When sending an answer with multiple codecs, we need to add the RTX and FEC payload for each codec Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9031>
When sending an answer with multiple codecs, we need to add the RTX and FEC payload for each codec Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9031>