I use Poweramp v3 704 on my device (oneplus3 with oxygen os), it can enable hires on both internal DAC (192kHz/24bit) or external USB DAC (fiio e18, 96kHz/24bit). But this setting can only manual set to a fix value. If i set it to 96kHz, even if i am play a music file which is 44.1kHz fommat, it begin to make a resample from 44.1kHz ---> 96kHz. This resample may make output quality a bit low then which output whithout resample.
So can it add a option like "Auto set by file" and when a music file begin to play, Poweramp v3 read the file info and set the output freq to m