[mythtv] DVD playback issues, patch

John P Poet jppoet at gmail.com
Wed Nov 25 06:40:19 UTC 2009

On Tue, Nov 24, 2009 at 11:34 PM, Davin McCall <davmac at davmac.org> wrote:
> On 25/11/09 12:36, John P Poet wrote:
>> I am finding this conversation interesting.
>> I have been wondering why timestretch playback is not smoother than it
>> is.  My system (using software decoder) can playback anything I throw
>> at it, including 1080i H.264 material with yadif (2x) deinterlacing.
>> As soon as I bump up the speed even one notch (1.05x), my log file
>> starts filling up with:
>> NVP(0): Video is 3.67133 frames behind audio (too slow), dropping
>> frame to catch up.
> Hi John, one problem that may be affecting you is that Myth doesn't properly
> drop frames at the moment. I have a patch for that which I've attached. It's
> independent of my other work on Myth.
> I haven't yet opened a ticket for the issue, as I'm still waiting for my
> previous patches to be applied to trunk. One of them was applied and has
> since been reverted, even though the problem it opened up already had a
> patch waiting for it in a second ticket (and I've now had two separate
> confirmations that the two patches together solve the relevant problems).
> I'm frankly a bit annoyed at the whole development process that reverted the
> patch, without re-opening the relevant ticket
> (http://svn.mythtv.org/trac/ticket/7067 for instance) and without consulting
> me, so I'm not trying too hard to get a few other patches that I have  to be
> accepted, but you're welcome to try this one and see if it helps in your
> case. (There will probably still be frames dropped, but not nearly as many).
> Davin.

Thanks Davin, I will give that a try tomorrow night.

Can you give me a link to the two other patches you are referring to?
I believe I know which ones they are, but I want to be sure.

A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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