[mythtv-users] 0.19, XvMC, and Prebuffer pause

[Brian Foddy]

On Monday 06 March 2006 09:14 am, Todd Ignasiak wrote:
> On 3/5/06, Brian Foddy <bfoddy at visi.com> wrote:
> > When I upgraded to 0.19 I immediately noticed a form of the streams of
> > NVP prebuffering pauses, sometimes into an infinite loop, until pressing
> > another FF or RR keystroke.  It also seems worse when the playback hits
> > a commercial skip so it jumps many minutes.  Again, hitting RR 15 seconds
> > brings it back out.  And there can be several seconds of horrible A/V
> > sync after a FF also, when more prebuffer errors occur.  During stable
> > playback there are generally no problems.
>
> This sounds like what I'm seeing.  XvMC can work fine for a while, then the
> video will stop, and all the NVP prebuffer pause messages will be scrolling
> on the terminal window.  If I hit pause, it will work itself out.  But,
> it's stuck until I do that.
>
> The most interesting thing to me however, is before upgrading to 0.19,
>
> > I was using a Jan 21, 2006 SVN snap, and it was the most stable XvMC
> > playback I've ever seen in Mythtv.  FF/RR would result in near perfect
> > A/V sync right away, and very few prebuffer pauses, certainly no hangs.
>
> Same here.  I used many SVN versions leading up to 0.19,  some would be
> unstable, but others were very stable.  Leading up to the 0.19 release, the
> XvMC was very stable.

I'd even consider going back to my Jan 21 SVN snap, but I'm a little
worried the database alterations may not be forward compatible as
to introduce more problems.

Brian