de-interleave multichannel input data
de-interleave multichannel input data

Closed: https://git.iem.at/ambisonics/libambix/issues/1

umlaeute/ambix,kronihias/libambix,umlaeute/ambix,kronihias/libambix,iem-projects/ambix,umlaeute/ambix,iem-projects/ambix,iem-projects/ambix