[mythtv-users] nuvexport/transcode how long to convert?

[Bruce C.Dillahunty]

I found a posting:

http://www.theorie.physik.uni-goettingen.de/pipermail/transcode-users/ 
2002-March/000977.html

That mentions some speed issues, and also a tag about splitting the  
files up to fit on CD (when it runs too large)... To save me banging my  
head on this, Chris do you know if this would work with your script? If  
so, I can try to stick it in there...

 >Split resulting MPEG into junks: >--------------------------------
Create a user profile and supply this when running tcmplex. Tp split  
the output into several junks of 650MB size, add the following line:

 >>max_file_size = 650

 >>Then do the multiplexing like:
 >>$ tcmplex -i $FILENAME.m2v \ >-p $FILENAME.mpa \ >-o $FILENAME.mpg \  
 >-m v -F ./profile.cfg

 >>*ONLY* have this line in the user profile during multiplexing and NOT  
during transcoding (-F v,1,userprofile.cfg)! Otherwise the .m2v and  
.mpa files will be split as well!


On Thursday, September 4, 2003, at 01:55 PM, Chris Petersen wrote:

>> About how long should it take to convert a one hour NUV to an SVCD,
>> using the defaults of NUVEXPORT?
>
> Depends on how fast your system is and what encoding options you use.
> My dual athlon 1900+ (nuvexport checks for multiple cpu's) takes about
> 3-4 hours to encode a 22 minute show (what was originally a half-hour
> show) with denoise turned on.  It's at least an hour less with denoise
> disabled.
>
> All of the tasks run as `nice -n 19` so they won't interfere with
> anything, but that also means that they'll slow down if you're using
> things.
>
> Unfortunately, mpeg2enc is at least half the speed of comparable  
> windows
> encoders (a half-hour show, with denoise would take about 1-2 hours in
> tmpgenc).  Denoise causes a SIGNIFICANT speed decrease, though.  I've
> enabled it by default because encoding from an already-encoded format
> creates a lot of noise.
>
> So yes, you're running with "expected" norms.  mpeg2enc just sucks (but
> it's free and runs in linux).
>
> -Chris
>
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