mencoder fmv4 two pass command line help needed

[tvshowman]

Hi!

I've been reading BTjustics's thread about making a 2 pass batch to encode movies into XVID. This got me wondering if it is possible to use my FMP4 compression instead and make that do 2 passes?

I use the FFDshow's codec and it is like a turbo compressor that uses very little CPU on my rig. I only compress SDTV. I have been using it for about a year and compress all my movies auto into avi's using the built in convert function in PVRX2 without problems and I am very happy with the results. A 4 to 5gig MPEG movie usually ends up under 2gigs and the size is adjusted depending on how much movement is in the movie. on my Core Duo rig it usually compresses a show at 60FPS and I am usually compressing two at a time at 60FPS each while I am recording two more shows at the same time while watching a show in GBPVR. It is a miracle codec to say the least. Now this leads me to this post.

Can someone with command line mencoder knowledgle please help me adjust my command line script to enable two passes so I can see if I will get even much more compression on encoded movies?

Here is the code I am using.

Stand alone FMP4 code - drop on to bat

Code:

mencoder.exe "%1" -ovc lavc -oac mp3lame -lavcopts vcodec=mpeg4:vqscale=4:vqmin=2:vqmax=31:keyint=250:me_range=1000 -lameopts preset=standard -o "%~dpn1.avi"

My code used in PVRX2 for auto code

Code:

<Conversion name="Mencoder mine" exe="mencoder.exe" cmd="{SOURCE_FILE} start /b /low /wait -ovc lavc -oac mp3lame -lavcopts vcodec=mpeg4:vqscale=4:vqmin=2:vqmax=31:keyint=250:me_range=1000 -lameopts preset=standard -o {DEST_FILE}" targetExtension=".avi" />

I think I need a "vpass=" option but I remember reading somewhere that sound must not be encoded during a pass or something so I am at a loss.

Can someone create a possible script?

For the codec to work you need FFDshow installed and allowed to work with any program.

Thanks for any help

here is a post from last year I made when figuring out the single line
http://forums.nextpvr.com/showthread.php...light=fmv4

[tvshowman]

Any skilled coders feel like helping a brother find the way?

Thanks for any info or thoughts on if it will really work

cheers