[mythtv-users] mythburn: automagic DVD burning becoming part of Myth soon?

Cory Papenfuss papenfuss at juneau.me.vt.edu
Mon Oct 4 13:39:36 EDT 2004

 	I have previously used avidemux to tag the commercials and crunch 
the video.  It's been a painstaking process, but have a scripty that 
pretty much does it automatically given a list.  Something like this:

VIDOPTS="--filters $FILTFILE --video-process --halfd1-res --video-codec \
 	DVD --video-conf $VIDCONF"
avidemux2 --load $i $VIDOPTS --save-raw-audio $base.m2a --save $base.m2v --quit
mplex -O 3003mpt -o $base.mpg -f 8 $base.m2v $base.m2a

Where filters contains the xml on my filter choice from avidemux:
<?xml version="1.0"?>
<filters FilterNumber="1">
   <Filter Tag="39" Conf=" MPlayer HQ Denoise 3D (4.0 - 3.0 - 6.0)'">
     <Parameters Number="3">

i.e. Mplayer HQ Denoise 3D (default parameters)

 	The resulting process takes about 4hours/hour on a 2.4Ghz P4 or 
Athlon 2400.  I've got 2 SMP boxes, so I can run it 4 times and get 1 
hour/hour aggregate.


* Cory Papenfuss							*
* Electrical Engineering candidate Ph.D. graduate student               *
* Virginia Polytechnic Institute and State University 			*

On Mon, 4 Oct 2004, James Armstrong wrote:

> Cory Papenfuss wrote:
>>> The only nice feature I would like to see added is a way to select 
>>> several shows and have the script automatically decide how much 
>>> compression is needed to make them fit on a dvd, then transcode the .nuv 
>>> (mpeg2) files before burning them to disk. I can usually get 3 one hour 
>>> shows on one dvd but would like to archive maybe 6 to 8 per dvd at a 
>>> lower quality but still be able to watch them on a dvd player.
>>> - James
>>     Just FYI, I have had great success (quality-wise) with transcoding 
>> 640x480 MPEG2 (ivtv) streams to 352x480 and burning to DVD.  I get 6 
>> 1-hour shows (~43 minutes each) on a DVD with >VHS quality.  The PVR cards 
>> don't do a great job of low-bitrate captures, so I transcode from a higher 
>> setting, denoise, and downsize.
>> -Cory
> If I could ask, what commands are you using to transcode to 352x480 and how 
> long or how many fps does it take to transcode a single show? I want to add 
> the command right to the mythtvburn script to have it done automatically when 
> I go to burn them.
> - James
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