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

Steve Adeff adeffs at gmail.com
Thu Jan 5 12:23:40 EST 2006


On Thursday 05 January 2006 11:58, John P Poet wrote:
> 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

ok, well I'm currently running SVN8501 and not noticing any pauses with HD 
material. I am getting some semi-random hiccups in live TV though.

I don't do any faster than 1.0x viewing, but if I can be of some help to you 
figuring out whats going on let me know and I can run some tests for you now 
that I've got my other stuttering issue solved.

-- 
Steve


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