Originally Posted by Xylon
Two - Interlaced 1080i - This is one really gave a pause. How can I grab a frame if my Haali renderer and spliiter can't deinterlace while frame capturing?
1) In Vista you can screengrab stuff with EVR, even after it's gone through hardware deinterlacing (to my surprise, as you couldn't do this in XP). Only problem is you need an ATI 2600/2900, or Nvidia 8600/8800, as the lower models can't do vector/motion adaptive deinterlacing on VC1/h264. Problem is you need to know about all the crappy little ins and outs, bugs and foibles of whatever driver/card/filterchain/player combo you choose (see my sig!). Here's an example of this:
Click on it to see, note the CPU use and dxva/nv12 showing the hw acceleration/deinterlacing. That's some 20mbit 1080i50 h264 off BBC HD, so it definitely needs the acceleration (yes I know it's levels expanded, that's deliberate for PC playback).
Best point about this method is you have an exactly equal level of deinterlacing on both discs - this isn't the case when you compare Bluray to HDDVD set top boxes side by side, as the deinterlacing quality can really vary. It also gives you an accurate reflection of what the viewer would actually see.
2) Demux the m2ts and evo files, and use PowerDVD to play the resulting raw video. Go into config/video, turn off hw acceleration, goto advanced, specify bitstream analysis and pixeladaptive (note you'll probably need an o/ced c2d or quadore for this). Because you're now in file mode rather than (protected) disc mode, the capture frame button now becomes available (and in settings you can make it so that this dumps the full frame minus scaling, but after other postprocessing like deinterlacing). Note I haven't tested all this, and there are anumber of things that could go wrong!
3) By far the easiest: wait until you've got a frame with zero motion, and set the decoder to weave. This gets you max resolution without combing artifacts, and because it can be done in software you can screengrab regardless of your hardware setup. Does kinda exclude all those nice waterfalls though.
Good thread btw!