[mythtv-users] nuvexport speeding up

[Matt Vollmar]

spectro wrote:

>YOU ROCK!
>
>After implementing your hack I am exporting DVCD using the WMV option,
>but know instead of 1 episode every 3 hours I am exporting 3
>episodes/hour (around 50fps). At last I can move all these Stargate
>episodes to DVD.
>
>I am wondering if we can map parameters from meconder to ffmpeg and
>create a wrapper script so every time nuvexport tries to run mencoder
>it is actually running the much faster ffmpeg.
>
>
>
>On Tue, 16 Nov 2004 16:29:13 -0400, Jonathan Markevich
><mythtv at jonandtina.net> wrote:
>  
>
>>I found something... I duplicated the WMV.pm file in
>>/usr/share/nuvexport/export and went down to the command-line
>>construction of the ffmpeg string, about line 104.  I changed the vcodec
>>to mpeg1video, changed -f asf to -f vcd and made sure I fed in the right
>>stats (224 audio bitrate, and I think it's 1150 for the video bitrate?,
>>352x240).  With no noise removal I was done a half-hour show in 8
>>minutes.  It turned out not to be a textbook VCD file because the audio
>>needs to be resampled (I had it at 48000 and it needs 44100) but it is a
>>mpeg file, and it was VERY fast to encode!
>>
>>ffmpeg's documentation tells me that -target vcd is supposed to set all
>>of the right things, but when I removed everything else and added that,
>>it refused to run.  It might have something to do with the rest of the
>>command-line parameters that are applied to it.  I couldn't find them in
>>my first investigation, though.  I also tried to add an additional
>>module to the menu, but it wouldn't show up either.  I have to dig into
>>the basics of the menu system for that, and I'm kinda running out of
>>time today.
>>
>>Hopefully, I've put someone else on the right track, though!  As for me,
>>I'm pretty happy with any kind of MPEG file that I can tweak on another
>>system.  I haven't looked too closely at the quality just yet, but the
>>transcode fps numbers were sweet (70-75fps)
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>>    
>>
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How was the quality?  I need to take some stuff off of the hard drive, 
but I don't want to lose all the quality.

Matt