On 04/02/2010, at 9:09 AM, slippyr4 wrote:
so, i'd be very interested to learn about your approach to detection
of the
2:3 pulldown, if you're happy to share it.
Have a check of my yuv filters http://silicontrip.net/~mark/lavtools/#yuvdiff
I haven't coded it, but have done it with external tools.
The output from yuvdiff can be passed through an FFT filter and any
sort of frame rate conversion (even frame blended) will show as a
spike. The more prominent the spike the cleaner the conversion. The
ratio of change shows up in the FFT. 2-3 pulldown has a very
prominent spike at a definite location (I can't remember where, but
it's has a very intuitive location)
Hopefully this will help with detection.
if you need any help with coding, let me know.
Mark
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