Question about upmix plugin

[GitHub issues - opened]

alsa-project/alsa-plugins issue #25 was opened from krumpfwylg:

Hi, I've noticed the [latest commits](https://github.com/alsa-project/alsa-plugins/pull/2) done to the upmix plugin, but there's something I don't understand.
Line 24 of pcm_upmix.c is _#define UPMIX_PCM_FORMAT	SND_PCM_FORMAT_S16_ 
Does that mean the upmix plugin is still only capable of using S16_LE format ?
Or does the UPMIX_PCM_FORMAT value can get changed to S32_LE by tweaking it in asoundrc file ?

Issue URL     : https://github.com/alsa-project/alsa-plugins/issues/25
Repository URL: https://github.com/alsa-project/alsa-plugins