Im getting a black screen when i open an avi video (mjpg codec) in after effects.
Video works fine in programs like windows media player and VLC
Also other videos work fine in AE, like H264 and FPS1 codecs (dunno what FPS1 is but i have a video and it says FPS1 is codec and it works)
oh yeah and im using AE CS5.5
And what is the exact source of the file? To my knowledge all MotionJPEG CoDecs in AVI wrappers are vendor specific like the old Matrox DigiSuite or Blackmagic stuff, meaning that in turn to read them properly, you need those vendor's CoDec installers . Still, even then they may be DirectDraw CoDecs which AE has read, not even DivX or any of that. In that case you will need an external conversion tool like VirtualDub.
Read my post again - AE doesn't handle DirectDraw CoDecs that require DirectX based hardware acceleration. And playclaw is one such CoDec. Whether or not it plays elsewhere is utterly irrelevant at this point. You need to convert it to something AE can use, that is a bog standard legacy AVI that uses the old GDI mode, or at least provides a playback component for that. Anything from an uncompressed AVI file to HuffYUV to an image sequence or even a Quicktime movie, just not what you have currently.
Ok so i downloaded virtualdub and when i try open my video in that it complained about a dxtory codec that claims it can show the video but it cant. So then i uninstalled Dxtory and the video works now in AE.
also the video's codec (at least according to AE) has changed from MJPG to BMP1. so i dunno. some weird stuff but its fixed now.