[mythtv-users] 0.22RC1 HD-PVR SPDIF audio problems

[John P Poet]

On Thu, Oct 22, 2009 at 5:59 PM, Ken Bass <kbass at kenbass.com> wrote:
> John P Poet wrote:
>>
>> Try adding a 1 second (or longer) sleep to the end of your channel
>> change script.  If that doesn't help, also try adding the optional
>> patches described on the wiki.
>>
>> John
>>
>
> Adding a 2 second delay seems to help. I saw your thread back in April about
> the audio stream changing and sleep suggestion. I guess I thought it would
> have been fixed by now in the 0.22RC so I wanted to report it to the list.

The optional patches listed on the wiki are my best attempt at solving
that problem, but even they do not solve it 100% of the time.  They
help a lot, but I still have a 1 second sleep at the end of the
channel change script, just to make sure --- but I don't use LiveTV,
so I don't care how long the channel change takes ;-)

The real problem comes down to how quickly your STB produces stable
video/audio after a channel change.  If the HD-PVR is told to start
recording when there is no video or audio on it's inputs, it gets a
bit confused.  Those optional patches query the HD-PVR and wait for it
to report a valid video resolution, before continuing on to the
"recording" phase.  Several people that use the HD-PVR for LiveTV,
report that those patches are virtually mandatory for anything
approaching smooth operation.

John
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