Anicsi wrote:1. I have MPEGstreamclip and Perian. I don't assume I need the ripper, since it's only for DVDs. Which would be a better program to install if I only need it for cleaning? WINE or Crossover?
Personally, I'd say to go with Wine. There's nothing really integral about AviSynth or the commonly-used video processing tools that requires Crossover.
2. So when I have everything installed, where do I go from there? The amvs I want to post-process have various formats, the early ones are .dv, after that most are H.264 .mov or .mp4. I need to end up with an avs file to write the commands, no? Since I don't have any VOB files to open, how do I get those?
You can write scripts with TextEdit. Just save with a .avs extension. Any run-of-the-mill AviSynth tutorial will work for how to get the actual scripts written. The AV Tech guides cover this, and you can browse around on Doom9's forum in the AviSynth Usage and AviSynth Development areas to find more specific information. The only thing to be aware of is that AviSynth-under-Wine means you cannot use DirectShowSource, and AVISource is a pain to get working right with ffdshow (but it can be done). You'll want to stick to MPEG2Source (DGDecode/DGIndex), FFmpegSource2, and LSMASHSource, as these source filters have their decoders built in and don't need some underlying media framework like Video for Windows or DirectShow to rely on.
Obviously, lots of things have changed over the past 5 years since this thread started, both in regard to OS X, and AviSynth. I think I may make a post on how to properly deal with this stuff from a current perspective, but it might take a couple days.