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Old 09-16-10, 06:54 AM   #319
FFmpeg developer
Join Date: Jan 2009
Location: Vienna, Austria
Posts: 467
Default Re: VDPAU testing tool

Originally Posted by shred00 View Post
I notice the IVTC deinterlacer is tested in conjunction with other deinterlacers:

MIXER TEMPORAL + IVTC (1920x1080): 42 fields/s
MIXER TEMPORAL_SPATIAL + IVTC (1920x1080): 15 fields/s

Given that inverting the telecining that is done to turn progressive content into interlaced content results in progressive/de-interlaced content, why would I combine that with another de-interlacer like TEMPORAL or TEMPORAL_SPATIAL?

Maybe I'm misunderstanding the purpose of the IVTC de-interlacer?
It detects progressive frames in a stream to disable de-interlacing (and the sometimes resulting artefacts) for those frames (but does not change the frame-rate in a way some MPlayer filters do it). This may also be useful when watching DVB channels that change between interlaced and progressive content the way it often happens in PAL country (but personally, I prefer to turn de-interlacing on/off myself).

Carl Eugen
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