All DSD codes have 1 bit per sample.
https://en.wikipedia.org/wiki/Direct_Stream_DigitalSigned-off-by: Ihar A. Tumashyk <itumashyk@gmail.com>
Reviewed-by: Ganesh Ajjanagadde <gajjanag@mit.edu>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>