pub(crate) fn multiopus_layout(
channels: i32,
) -> Option<(i32, i32, &'static [u8])>Expand description
Chromium’s multistream-Opus surround layout for a channel count, as
(streams, coupled, mapping); None for anything but 5.1 (6) or 7.1 (8).
The same tables are advertised in the WebRTC SDP (multiopus), so the browser’s decoder
inverts exactly the stream/coupling/mapping this encoder applies.