abuf = alloc_audio_buffer(self.ainfo, samples, self.chmap.clone())?;
let mut adata = abuf.get_abuf_i16().unwrap();
let offs: [usize; 2] = [0, adata.get_offset(1)];
abuf = alloc_audio_buffer(self.ainfo, samples, self.chmap.clone())?;
let mut adata = abuf.get_abuf_i16().unwrap();
let offs: [usize; 2] = [0, adata.get_offset(1)];