[pulseaudio-discuss] "passthrough" audio (eg. AC3 / DTS / WM9)

[Lennart Poettering]

On Tue, 06.10.09 10:40, Dave Moore (davewantsmoore at gmail.com) wrote:

> Wow.  Thanks for the replies everyone.  I didn't know what to expect.
> 
> I completely understand why PA doesn't work (well?!) with pass-through....
> so my question is now.
> 
> If I am to keep PA installed and configured (it's now part of my Linux
> distro and would like to keep things as "vanilla" as possible)..... what
> steps can I take to have PA pass unaltered data through to my digital out ?
> 
> (I understand I will not have sound mixing, or multiple applications able to
> use the card at once ->  basically I would lose all the benefits of PA.....
> but in order to stick with what my distro offers, but also to get what I
> need (encoded formats passed unaltered to digital out)..... what can I do?)

Just make sure PA doesn't grab the device, and then tell your app to
use the low-level spdif-pass-thru directly. How that is configured has
nothing to do with PA, and in fact stays exactly the same whether you
run PA or not.

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/           GnuPG 0x1A015CC4