VMR9Compositor and Interlacing

DirectShow programming library for .Net programmers

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VMR9Compositor and Interlacing

Forum: Open Discussion

Creator: Sebastian Mauer

Created: 2009-10-04

Updated: 2012-10-29

Sebastian Mauer - 2009-10-04

Hello there,

after figuring out that SampleGrabber is most probably not the best way to
draw OSD overlays over an MPEG2 Stream I turned to VMR9 and the BitmapMixer
and VMR9Compositor samples.

I was able to draw on my stream with both samples however VMRCompositor
introduced interlacing to my video stream. I don't know why but when using the
Compositor the stream is full off the well known interlacing twitters. The
BitmapMixer Sample doesn't have this problem, anyone of you know why?

Since I want to display changing data (eg. EPG) I am looking for a convenient
method to do so. VMRCompositor seems to be the better choice, because of the
separate RenderLoop, but the interlacing is not acceptable.

Any ideas? Greetings,

Maui

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Sebastian Mauer - 2009-10-04

VMRCompositor also seems to be necessary to do any animation...

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