Deinterlacing without encoding? TiVo to SVCD

[Patmos21]

Greetings again all,

My workflow involves extracting mpeg streams directly from my TiVo, which I've now mastered.

I was transcoding using ffmpegX, which works fine.
I have since decided to change the bitrate which the TiVo records at (why transcode when the TiVo can do it for me?) and extracted the mpeg file.

My question is, now that I don't have to transcode anything, how can I use ffmpegX to simply deinterlace the resultant file?

If ffmpegX can't do this, can anyone suggest an alternative?

Thanks to one and all for your replies.

[Freiluft]

While there are some players (vlc, mencoder) that can deinterlace at playback if they have enough CPU to do it, deinterlacing is a complicated affair either dropping or interpolating every other line on half a frame and creating a whole one or by means of some adaptive process. You cannot perform this operation on an interlaced video without re-encoding it.