Interlaced video output - proof of principle

(2013-05-29 15:09)Stu-e Wrote:  I do not believe it is possible to scale 576i to 1080i without first deinterlacing then scaling.

Have you tried the weave output under software only decoding? (i.e. no VDPAU or other hardware decoding). Providing you processor is strong enough you should be able to watch 1080i source with 1080i output. 576i/480i as I mentioned earlier in this thread is more challenging, but you could test the theory by turning off all scaling and watch 576i/480i in a small window with 1080i output.

My processor is not strong enough for h.264 1080 material.

Equally important is to use 1080i output with material which is not interlaced. At the moment output is very jumpy.
Is this possible? My hardware is AMD E-450.

Yes progressive video/film should work with weave. This will stop the jumpy output you describe. It's then up to your TV to perform inversetelecine (IVTC) to properly recombine the interlace fields back into progressive frames.

Your AMD E-450 I suspect is not powerful enough for 1080 H264 decode so no interlaced output for you. At least until someone can figure out how to port the new weave deinterlace feature to AMD XVBA hardware decoded video (and nVidia VDPAU).

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Oh forgot to say 24p film would speed up to 25p in order to work with 50Hz 1080i. I can't see anyone spending time making 24p work with 60Hz using 3:2 pulldown. This is complicated and results in jerky video anyway.