[Bug 790752] msdk: supports bufferpool

[GStreamer (GNOME Bugzilla)]

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

--- Comment #108 from Hyunjun Ko <zzoon at igalia.com> ---
(In reply to Hyunjun Ko from comment #107)
> (In reply to Ishmael Visayana Sameen from comment #91)
> > > Strange!, We should compare with msdk sample applications.
> > > 
> > > I have a guess,  we don't do the "DecodeHeader" before querying for required
> > > IO surface, instead, we just fill the mfxVideoParam manually and there could
> > > a possibility that we are not providing all the information needed. But it
> > > is fine for now, We can fix this later (both decoder and encoder require a
> > > bunch of fixes I believe). Would be nice to file a bug to keep track of this.
> > 
> > Jeez, everything can be easily guessed when you have such a good reference
> > :) Your guess is right.
> 
> Hmm but current sample code in MediaSDK also require over 20 surfaces even
> though it calls DecodeHeader.
> That's still what is confusing me.

Maybe sample might be not correct, I'll check it later :)

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