[Live-devel] FramedFilter Performance & Questions

[Julian Lamberty]

>
>
> If your "Transcoder" filter delivers discrete MPEG-4 frames, and sets 
> "fPresentationTime" and "fDurationInMicroseconds" properly, then you 
> don't need to insert a "MPEG4VideoStreamDiscreteFramer".
>   
It does, but if I leave out the framer, the sink doesn't even call 
doGetNextFrame() of my class...
> I don't know; you'll need to instrument this for yourself to figure 
> it out.  Make sure, though, that you are setting 
> "fDurationInMicroseconds" correctly at each point in the chain, 
> because that field determines how long "MPEG4ESVideoRTPSink" can wait 
> after sending each packet before requesting new data.
>   
I tried both ways: Set to 0 or to 40000 (according to 25Hz framerate), 
doesn't change anything (maybe because I use the framer?)
>
> No.  ("MPEG1or2VideoStreamFramer" takes an unstructured byte stream as input.)
> Better yet, fix your decoder so that it can handle individual slices - that way, 
> you will handle data loss much better.)
OK, it actually does handle slices.
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