Quick Tip #1:
Don't use VirtualDub to check whether the script even works - because if VDub fails, it doesn't necessarily mean the script doesn't work. Test the script in mplayer2.exe or Media Player Classic. If it works there, then the problems with VDub can be assessed.
Quick Tip #2:
It could be, and I'm just suggesting this off the top of my head as I don't use Vista, that maybe it's finally time to stop using VirtualDubMod 1.5.10.1 and use either 1.5.10.2 or 1.5.10.3 (which was released a couple weeks ago) instead. Or, the newest version of
VirtualDub proper instead of Mod.
To look at those pictures, however, let's sort this out:
- AVISource does what it says - open AVI files. If it isn't an AVI, chances are it won't open with AVISource.
- FFmpegSource can be put in AviSynth's plugins folder - at which point the LoadPlugin line isn't needed.
- Renaming .h264 to .mp4 will not work the same way as attempting to open the original, real .mp4 file directly. There is zero reason to extract the .h264 stream from the container anyway (unless of course you're dealing with HD sources from Blu-ray or HD-DVD, in which case you'd need to be using DGAVCDecode, and from what I know that opens MPEG-2 TS streams so there's still no reason to extract the video stream). The only foreseeable reason to extract the .h264 stream is if someone issued out the big no-no and used H264 in AVI including B-frames and whatnot - then I can see doing it.
- AviSynth supports relative pathnames - as long as the file needing to be opened is in the same directory with the script. This is not only easier to work with, but it also cuts down on the issue of a problem with or misspelling in the file path.
- To open a file with any of AviSynth's source filters, the entire filename needs to be entered, exactly as it is. Make sure that Windows is set to display the file extensions, and either do the right click, Rename, and when the name is highlighted, right click, Copy jig and then Paste said filename into your script, or use a shell extension like Ninotech Path Copy to just copy the filename from the initial right click menu.