I'm pulling my hair out over Canon h264 MOV files. I like Kdenlive for its use of proxy clips as well as some nice filters and color correction tools, but I still can't get it to play even proxy clips in something like real time (possibly because I'm running it on Ubuntu through Virtualbox on a Windows 7 machine).
So I'm going to try another route: assemble a working copy and do basic color correction in Avisynth, then do effects and color grading in Kdenlive.
I'm making the wild assumption that you are the same Yellow as in the Doom9 forum. So here's my question: QTInput gives a beautiful image for the most part, but then there are some clips that it just blocks out in complete green. I have no idea what they are, and changing different settings on QTInput didn't seem to help. I saw you (or the Doom9 Yellow_) warning about QTInput here: http://forum.doom9.org/archive/index.php/t-162183.html and elsewhere, but FFMpegSource2 seems to bring up weird artefacts in the image.
Could you tell me what settings you use to get your Canon files to behave with AviSynth? (I'm using it with VirtualDub, in case that's important)
This whole Quicktime business ("but it works fine on iMovie on my old Mac" they say) is driving me crazy and making me wonder if I could/should have bought a different camera.
Many thanks in advance. I really could use some guidance!