[Bug 98005] VCE dual instance encoding inconsistent since st/va: enable dual instances encode by sync surface

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=98005

--- Comment #31 from Andy Furniss <adf.lists at gmail.com> ---
(In reply to Andy Furniss from comment #30)

> Unerlated observation while testing related to perf = I guess it depends on
> stream, but on a raw 2160p60 input from ram, with or without patches, I am
> more than twice as fast with init-qp <= 28.
> 
> Timing luck loosing me dual instance? Or something more fundamental meaning
> the encoder works harder al lower rates?
> 
> I notice that unlike omx when using cqp,  some rate control settings are
> still filled in.

Hacking them the same made no difference.

This turned out to be a gstreamer wierd because I didn't have a ! queue !
before the encoder.

> omx is the same speed with higher qp - and produces bigger files for the
> same qp.

Still makes slightly bigger files (cabac is on for both)

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