[mythtv-users] performace (bt878, athlon xp 2400, radeon 9200)

[steve at nexusuk.org]

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On Wed, 3 Mar 2004, Adam Felson wrote:

> I'm gettin poor performance on with a bt878 dumb capture card, athlon xp
> 2400 and radeon 9200;  video looks choppy, probably running 5-10
> frames/second.  The radeon is running at vga resolution.  I think
> capture is also running at 640x400.

First of all, you really want to run in full vertical resolution (480 on 
NTSC, 576 on PAL - trust me, it'll look better). Horizontal res doesn't 
matter so much.  You also haven't posted any details about what's using up 
all your CPU - look at top and see what processes are using most of the 
CPU up.  It's pretty much impossible to debug without that information.

> Is lack of good XV support on the radeon my problem?

If it doesn't support XV then this will be a huge problem.

> Can I capture/playback without compression?

The closest you'll get is using RTJPEG compression, which is the fastest 
(and least compressed).

- -- 

 - Steve                                             http://www.nexusuk.org/

     Servatis a periculum, servatis a maleficum - Whisper, Evanescence

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