Try
FFVideoSource instead, I guess. It will dither down to 8-bit though, but that's probably what you want anyway.
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| ffmpegsource
17:43:13 <~deculture> Also, TheFluff, you are so fucking slowpoke.jpg that people think we dropped the DVD's.
17:43:16 <~deculture> nice job, fag!
01:04:41 < Plorkyeran> it was annoying to typeset so it should be annoying to read