Well if you setup the recording profile to use RTJpeg and not mpeg4,
most of the processing is done on the backend side and the frontend gets
a little break. If you switch to MPEG4 the backend uses less CPU but
the frontend uses more. It's kind of a balancing act. The frontend
uses on average 40% CPU with RTJpeg quality 170 (the default) for live
TV. A Celeron 300 should be able to handle it without maxing out the
CPU usage, and even if it did you could bump the rtjpeg quality down a bit.
Nathan Widmyer wrote:
How successful is that P3 500? Do you have processing power to spare
or is the processing power almost too little? I have an older P3
Celeron 300Mhz that is collecting dust and I have a bt878 card as well
from another box not doing anything. I want to put a serious box
together soon but maybe I can tinker with this old PC and this TV card
and I'm wondering how plausible it would be. Thanks in advance, Nate.
On 8/2/05, *tufkal* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:
have played around with MythTV since 0.15 with mxied success trying
new things and learning how it all worked. I recently decided a
myth box
in my living room would be a good addition, and I had a Pentium III
500mhz / 192MB RAM / 10GB HD sitting around to abuse. I am a user of
Mandriva (Mandrake) linux, so I installed the backend on my server and
added a BT878 card. Using Mandriva 2005 LE and thac's latest RPMs for
Myth, it was up and running in 2 minutes flat. Setup the frontend
with
Mandriva 2005 as well, and everything just worked.
Now by everything I mean live tv, recordings, transcodes, video and
audio quality, and the basics. I will be fumbling throguh getting
MythGame, MythMusic, MythVideo, and a few other plugins setup in the
next week, but that is not what I am worried about.
There are a few things I want to accomplish that I am not sure the
best
way to go about. First of all I have a large wireless network with my
neighbors and friends, that I would like to offer streaming TV to.
Now I
dont have the hardware to run 5 tuner cards and give everyone frontend
software. And since there isnt any Windows frontend I know of besides
tapping in with DSmyth, I am looking for other options. I noticed
that
someone with the DSMyth filters can open the ringbuf1.nuv file and see
the buffer, but once I change the channel or the file reaches its size
limit and starts overwriting itself, dsmyth cant handle it. What
is the
best way to get a stream I can share on my network?
The other thing I am looking to do is add a second tuner card so I can
record a show while wathcing another live. I've adjusted the various
profile settings so that about 40% cpu usage is used per input,
but the
problem I have run into is when I add the second card, lspci shows it,
and the necessary /proc entries show the kernel sees the card, but i
only have 1 /dev/video device present. Do i have to mknod it myself?
Thanks in advance for the help.
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