[mythtv-users] Quality of Hardware vs. Software encoding

[D Banerjee]

>From my recent personal experience:

PVR output looks a little "soft" (yes I tried turning of dnr). Also you have
to wait until the recording is done for commercial detection :(

I vote for software with filters. It will only get better in the future..
i.e. comb filters.
http://students.washington.edu/ldubb/computer/Read_Me_Guava_Comb.htm The
pvr-250 doesn't have this AFAIK.

However recently with the monster machine I've been putting these cards in
I'd think it would just be wiser to just get a very slow cpu and one or two
very large hard drives. Save a few hundred watts, and not worry about
overheating in the summer.

----- Original Message ----- 
From: "Peter Sebastian Masny" <ps-list at masny.dk>
To: <mythtv-users at mythtv.org>
Sent: Monday, March 29, 2004 9:09 PM
Subject: [mythtv-users] Quality of Hardware vs. Software encoding


> Hi all,
>
> I'm sure this has been discussed before, but my search attempts have not
> been fruitful.  Basically I would like to know how hardware MPEG 2
> captures compare to software MPEG4 captures.  CPU usage is not an issue.
>
> I capture video at 480x480 MPEG4 ,max quality 2, min 15 , diff 3 HQ
> enabled, 4MV enabled.
>
> My bitrate is scaled to 3000 (so actually 2000)
>
> Quality is pretty good, although I can tell that it is a little more
> blurry than the source and sometimes notice a few artifacts.
>
> How does say a PVR250 compare to this.  From what I understand, the
> bitrate should probably be set around 8000 kb for good quality.  This is
> 4 times as large as the software encoded streams, obviously to the
> software encoders advantage.
>
>
> My question:
> How does the quality compare between the software encoders and a
> hardware encoder such as the PVR-250?
>
>
>
> Thanks,
>
> Peter
>
>


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