[mythtv-users] Re: New issue affect old previously unaffected build [WAS Re: [mythtv] Re: Ticket #900: HDTV at greater than 1.0 speed stutters

[John P Poet]

On 1/5/06, Steve Adeff <adeffs at gmail.com> wrote:
> On Sunday 01 January 2006 16:17, John P Poet wrote:
> > On 1/1/06, Steve Adeff <adeffs at gmail.com> wrote:
> > > On Sunday 01 January 2006 12:19, Steve Adeff wrote:
> > >
> > > I'm really getting frustrated, there must be something I'm missing. I
> > > went all the way back to 8199 and I'm still getting stuttering! I even
> > > rebooted the machine. I've tried both gcc-4.0 and gcc-3.3. I do a make
> > > uninstall and make distclean before each compile but they still have
> > > stuttering for 1080i output.
> > >
> > > Help!
> >
> > Steve,
> >
> > Try doing a clean check-out of the latest svn (svn co
> > http://cvs.mythtv.org/svn/trunk/mythtv), not a svn update.
> >
> > Then, try adding the attached patch to it: patch -p0 < RingBuffer.patch.
> >
> > I still get an occational stutter, but they are very infrequent.
> >
> > John
>
> John, I solved my initial issue but am now noticing what I think your patch is
> for: stutter in livetv hdtv?
>
> If so let me know and I'll apply the patch to my future SVN builds to see how
> it goes.
>
> --
> Steve

Actually, I never watch live tv.  Ever.

For me, increasing the read/write blocksize does smooth-out playback. 
Without doing that on my system I get a split-second pause every
couple of minutes.

I would also like to be able to play HiDef material at 1.2x (or
greater) speed.  Without that patch, higher playback speeds generate a
pre-buffer pause every couple of seconds.  Even with the patch, higher
playback speeds generate a lot of pre-buffer pauses -- just not as
often.  I am still trying to figure out what is causing those
pre-buffer pauses.

John