Re: [Tvtime-devel] saa7134 jerky

[Mike B. <nit...@sl...>]

On Thursday 04 September 2003 13:35, ayachi gherissi wrote:
> I have SAA7133 video and stereo decodeur
> I used saa7134 driver 0.2.8 ,tvtime-0.9.9
> I get video but it plays jerky (about half frame rate)
>
>
> here what I loaded
>
> isnmod tuner type=2
> insmod video-buf
> isnmod saa7134 gbuffers=4 card=5
>
> but it plays smooth with xawtv
> any idea
>
> thank's

How fast is your processor?  Have you also tried a bttv card in the same 
system with a good framerate?  What video card are you using?

Here are some (but not all) possible explanations:

You're using a Radeon 7500 in dual head mode.
Your processor is not fast enough to deinterlace to 59.94 or 50fps.
There's a problem with the saa7134 driver.

It's most likely one of the first two.  Try running tvtime with a simple 
deinterlacer, like Linear Blend (TV full resolution), with the framerate set 
to 29.97 or 25fps.  Also try reducing the input width to something like 640, 
540, or 480 with tvtime's "-I" option.  

To help us solve this, press the D key several times while tvtime is running 
to print out some deinterlacing stats to the terminal on stderr.  Copy/paste 
these into an e-mail and send them to the mailing list.



-- 
Mike Bourgeous
nit...@sl...