[mythtv-users] HDTV playback & GF4

[Kent Williams]

Before it was 0.14, trying now with CVS.
Current video card is 'nVidia Corporation NV10 [GeForce 256 SDR]'

When I add -mpentium4 to libavcodec.pro (there doesn't seem to be a
settings.pro in that directory), I get:
gcc -c -pipe -w -Wall -g -O3 -DPIC -fPIC -fomit-frame-pointer
-DHAVE_AV_CONFIG_H -I.. -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
-D_GNU_SOURCE -mpentium4 -D_REENTRANT  -D_GNU_SOURCE
-D_FILE_OFFSET_BITS=64 -DPREFIX=\"/usr/local\" -DMMX -DUSING_IVTV
-DLCD_DEVICE -DQT_NO_DEBUG -DQT_THREAD_SUPPORT -DQT_SHARED
-I/usr/share/qt3/mkspecs/default -I. -I../..
-I../../../../../include/qt3 -o common.o common.c
cc1: error: invalid option `pentium4'

Thanks for your help,
Kent


-----Original Message-----
From: Doug Larrick [mailto:doug at ties.org] 
Sent: Friday, 20 February 2004 11:36 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] HDTV playback & GF4

Kent Williams wrote:
> I was wondering how much of a benefit the Geforce 4 MX is for HDTV
> playback?
> My Frontend is a HT p4 2.8ghz with a Geforce 2 (using the Nvidia
> drivers) and it can't seem to playback any HDTV channels correctly.
> 
> The backend has two nova dvb-t cards and the hdds are dma enabled. It
> also happens on HDTV shows I have recorded previously and am just
> playing back.
> The network is 100Mbps full duplex and doesn't appear to be a problem.
> The CPU usage on the frontend is sitting up close to 100% (96% +).
> 
> If I went out and bought a GeForce 4 MX, is the CPU usage likely to
drop
> significantly?

What version of Myth?

What's your current video card?  Does it support the XVideo extension?

You might also try compiling Myth yourself, adding the '-mpentium4' 
compiler flag to the libs/libavcodec settings.pro file -- I found this 
helped a lot.

-Doug