forums.ps2dev.org

Those sharpening options (-sws) are already in his app - Lanczos is the preferred hi quality sharpening, with bicubic being a decent default. What's still to be incorporated is multi-pass encoding which would significantly help with quality and help prevent artifacting on high-motion framesets and ...

I've been doing a lot more experimentation with mencoder since my last post, and thought I would post some updates, this is by no means definitive, but will be useful to many I think: Audio The biggest thing I've found is that using besweet for audio rather than mencoder improves both quality and fl...

Does anyone know how to set mencoder to run two threads when encoding say with Xvid? Try using lavc-mpeg4 instead of xvid perhaps? lavc is supposed to support multi-threading wheras xvid (within mencoder) does not. Having said that I think xvid is complied into mencoder, so installing xvid builds s...

I've done some brief tests of libavc versus xvid using mencoder. Three tests were run: 2-pass xvid 2-pass libavc mpeg4 2-pass libavc mpeg4 (2 threads) All tests had: bitrate=768, laczos resizing, wide motion search, no b-frames, 480x272AR. The results are quite surprising. libavc is about about 5% f...

Sorry m8 I've not been home yet to try, just some info i found at the mencoder site. If I'm right, replacing the lines that begin like "%me% %1 -sws 9" with: %me% %1 -sws 9 -vf harddup,scale=%width%:272 -ovc xvid -xvidencopts pass=1:vhq=4:turbo:max_bframes=0:threads=2 -af resample=44100:0...

Nevermind my dual-core question, if you add the following to that batchfile that was kindly posted above it will use both cores and significantly improve performance: :threads=2 This is added into the string that starts "-ovc" Rajjjaa, can you clarify where you are putting this option? I ...

I would love to see your batch file. I am sure it's better than my kludgy mess. salty Ok, here it is. You just need to tweak the top section to your needs and you're away. External programs required are mencoder, mp3gain and pmp_muxer. It takes between 1 and 9 arguments, each argument being a sourc...

Oh also, I forgot in my previous post, I've also found mp3gain (http://mp3gain.sf.net) to be very useful for normalizing the mp3 audio (making it louder) without causing distortion. The command line I use for this is: mp3gain /c /r /s s target_PMP.mp3 (The '/s s' switch is essential to keep the mp3 ...

After much experimentation I thought I'd share my curent mencoder settings that I'm most pleased with so far. Nearly all of these have been discovered by others in this thread (full credit to them), I've just collected them all in one place (and in some cases found the mencoder equivalents of virtua...

@jonny (and all): As you suggested I've had a go at encoding at multiple bit-rates to try and nail down when stuttering occurs. The results weren't quite what I expected. Using VirtualDub, XVid, AS@L3, 1-pass. I encoded an unfriendly section of video at bitrates of 268, 368, 468, 568, 668, and 768. ...

Hi jonny, Can you clarify what exactly causes the audio to stutter occasionally? I'm finding it quite hard to make videos that reliably do not do this. Is it caused by complex sections of video or is it caused by sudden high-bitrates? I wonder because it's easy enough to stop the bitrate going too h...

I think you're right jim, the example video from that thread also shows the same problem.
Thanks for setting me straight.

Well I'm completely staggered by this, the very same day that I was cursing Sony for crippling the video on the PSP, jonny goes and does this. Fantastic work! I've wasted most of the last 24 hours playing at converting files to get the best results. Currently I'm favouring using AutoGK to do most of...