Re: ffodivxvdpau & packed bitstream problem
I've repro'd the issue with the clip Carl sent.
I originally didn't realize that this was just a frame-dropping issue as opposed to a corruption issue. I suspect the issue is simply that the ffmpeg/VDPAU integration code isn't splitting the "packed" B-frames out into a separate frames, so some B-frames are simply not being decoded and displayed.
I'll file a bug here anyway, to investigate what it'd take to fix this in ffmpeg. Let me know if anyone else starts looking into that so we don't duplicate effort. Thanks.