* Hand-apply 24ae3a8f0a68529b50c34079e643caf6b9327523 from master;
use the number of mapped audio channels for the DCP name, not the
number of DCP channels (#479).
* Hand-apply 24ae3a8f0a68529b50c34079e643caf6b9327523 from master;
use the number of mapped audio channels for the DCP name, not the
number of DCP channels (#479).