[MPlayer-dev-eng] Real Time Clock into timer-lx.c?
dominik at rangers.eu.org
Sun Sep 22 11:50:27 CEST 2002
On Sunday, 22 September 2002, Sidik Isani wrote:
> Hello -
> I'm still planning to send you that timing patch this weekend!
> (The one which makes video smooth with network audio and broken
> sound drivers.) Please tell me what you think about the following
> though, so if needed I can back out other changes that are now in
> my tree before generating this patch. This has to do with RTC.
> I get good results with it, but only if:
> 1. Some previous program happens to have left it at >= 256Hz.
This is not required.
> 2. I'm running as root, or setuid-root
And this isn't either, if you have a recent kernel (i.e. 2.4.19
or so, check DOCS).
> Even if 1. is true, kernel will not allow a normal user to enable
> the interrupt until they select something <= 64Hz.
Not true for recent kernels.
> I'd like to propose three things... and the patch if you like ;-)
> 1. *Set* the RTC to 256Hz rather than accepting whatever frequency
> it was left at, ... or if that somehow causes a problem, set the
> frequency to 256Hz only if the old frequency happens to be lower
> than that. Since only one application can use the RTC at a time,
> does anyone see a problem with just putting a value in?
What's wrong with current 1024Hz?
MPlayer RPMs maintainer: http://www.piorunek.pl/~dominik/linux/pkgs/mplayer/
"The Universe doesn't give you any points for doing things that are easy."
-- Sheridan to Garibaldi in Babylon 5:"The Geometry of Shadows"
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