Generic deinterlace function exists?

[mantis2k]

What does Windows Media Player use to deinterlace? Regardless of source--interlaced, phase-shifted, field-blended--what can I use to deinterlace all three and compromise the quality?

[Guest]

Any single or double rate deinterlacer can be used on all of those, with grossly suboptimal results of course.

[mantis2k]

Please can you give an example of "single or double rate deinterlacer"? I am not technical enough to understand... :script:

[Guest]

Moving to newbies then. :)

A single rate deinterlacer retains the frame rate of the source. A double rate one doubles it (bobbing).

E.g.:

single rate: LeakKernelDeint()

double rate: mcbob()

[mantis2k]

I'll give these a try; thanks! :thanks:

[Guest]

I'm not specifically recommending those! I gave them merely as examples of single and double rate deinterlacers.

If you are planning to ask next what deinterlacers are best for generic use, don't even think about it!

The whole idea of using a "generic" deinterlacer for all material is stupid.

[LoRd_MuldeR]

MCBob is a pretty slow bobber. This may be perfectly okay for encoding tasks, but it probably makes MCBob unsuitable for usage in a player.

If you are looking for a "double rate" (bob) deinterlacer that gives reasonable quality at real-time speed, as required for live playback, I'd recommend YADIF (available in ffdshow) with "Bob" mode.

And if you have to deal with "field shifted" material, you can try MSU Field Shift Fixer. It's an Avisynth filter, but it can be used for playback via ffdshow's Avisynth wrapper.