[pvrusb2] s-video input and audio question

[Rod Smith]

On Saturday 10 March 2007 13:17, devsk wrote:
> Hi,
>
> I have a question regarding the s-video input. When using the s-video
> input, where does the mpeg2 stream get its audio from? Is it from the
> composite red and white connectors?

Yes.

> if that is the case, then following is little confusing, because its a mix
> of audio-video inputs: # cat ctl_input/enum_val
> television
> s-video
> composite
> radio

Television and (presumably; I've never used it) radio inputs include their own 
audio streams. The S-video and composite inputs are both paired with the RCA 
audio jacks; they take audio input from those jacks. If you want to use both 
composite and S-video inputs, you'll need to find a way to feed audio input 
from the appropriate associated source, such as a separate switch box. By 
design, neither composite nor S-video includes audio on the same cable or 
connector as the video, hence the need for separate audio connectors.

-- 
Rod Smith, rodsmith at rodsbooks.com
http://www.rodsbooks.com
Author of books on Linux, FreeBSD, and networking