[mythtv-users] HD-PVR and SPDIF In

[John P Poet]

On Tue, Dec 6, 2011 at 3:47 PM, John Nissley <jnissley at nissley.org> wrote:

> I have been running the HD-PVR with a Fedora 12 installation for a few
> years now and was using SPDIF instead of the analog inputs to the HD-PVR
> without any issues.  A week ago I upgraded(Fresh install on same hardware)
> to Fedora 16 and have been able to get everything working except for the
> SPDIF in to the HD-PVR.  About 50% of the time I get recordings without
> sound and in live tv mode the initial time the HD-PVR is accessed the sound
> is there but when I change channels the sound goes away.  Everything in
> fine when I switch to the analog sound inputs.
>
> I recall being required to do something to make this work properly
> initially but when I look through the archives it says to use v4l2-ctl
> but not really what to do with it.
>
> Thanks in advance for the assistance.


How long is the sleep at the bottom of your channel change script?  If it
is less than 2 seconds, I would try increasing it.  How long the delay
needs to be, depends on your STB.

Myth can detect when the HD-PVR has a lock on the video from the STB, but
there is no way to determine when it has got a good lock on the audio.  If
the HD-PVR is told to start recording before the audio has locked, it gets
a little confused, and will record AAC instead of AC3.


John
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