Re: [Openpvr-devel] Quiet List.

[Monty W. <mw...@ca...>]

On Wed, 5 Jun 2002 17:45:33 -0400
"Brian J. Murrell" <051...@in...> wrote:

> On Wed, Jun 05, 2002 at 04:37:45PM -0500, Monty Walls wrote:
> > 
> > I just added the merged low-latency+preempt patches to my rh7.[23] systems
> > to cut drops while doing record to divx (directly).
> 
> And how well does it work?  How much improvement?
> 

seems to work ok.  I was having drop problems with vcr (uses avifile library),
which was caused by vcr's internal code and the OS's drops during
disk i-o (both are handled now, grrr).  vcr really doesn't do much buffering
so if the OS hiccups, it use to drop frames... Unfortunately most of the
improvement is probably in my code rewrites since the improvements also
work without the RT kernel. 

I haven't had any crashes yet from it (knock on wood...), but I've only been 
using it about a week.  So if you aren't having drop problems I wouldn't
bother, it's probably in the application code (at least based on my playing).

I have found a nice cheat on recording - record at 640x240, then use a vertical
line doubler in outputing it to screen (mplayer can).  Since 640x480 is interlaced
and requires more horsepower than I have for either divx or mpeg, but I can
manage 640x240 realtime.

-- 
-Monty Walls (mw...@ca...)
-	MIS, Oklahoma Tax Commission
-
- My opinions are my own, my employer knows nothing about it.