[Bug 790752] msdk: supports bufferpool

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=790752

--- Comment #124 from sreerenj <bsreerenj at gmail.com> ---
(In reply to Hyunjun Ko from comment #105)
> (In reply to sreerenj from comment #99)
> > (In reply to Hyunjun Ko from comment #96)
> > > (In reply to sreerenj from comment #93)
> > > > Review of attachment 368118 [details] [review] [review] [review] [review]:
> > > > 
> > > > Assume we have vpp.
> > > > 
> > > > How about the pipeline: msdkh264dec ! msdkvpp ! textoverlay ! msdkvpp".
> > > > 
> > > > Here is decoder is supposed to create a child session, but it won't I
> > > > believe. WDT?
> > > 
> > > As per my undestanding, the decoder in this pipeline doesn't need to join
> > > the session from vpp but just share it, does it?
> > 
> > The decoder tries to find a context from downstream first. right?
> > So it could be receiving a context from downstream (2nd vpp) element.
> 
> Right.
> 
> > Please correct me if I am wrong, Only one dec, enc & vpp are allowed in a
> > single session. So, the decoder and first vpp should join the session by
> > creating its own child.
> 
> Yes, it's correct and then only vpp1 created a child context with joined
> session by this patch. So you're saying that decoder should do the same as
> vpp1?
> I'm not sure about it.

K, I think your logic is correct (and nice too) and it should work I believe.
Thanks for the clarification.

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