[Bug 97075] VCE encoding slow when GPU is not stressed (HD 7970M)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97075

Christian König <deathsimple at vodafone.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement
           Priority|medium                      |high

--- Comment #1 from Christian König <deathsimple at vodafone.de> ---
Yeah, that is a known issue.

The current VA-API implementation waits for the result after sending a single
frame to the hardware.

The OpenMAX implementation pipelines the whole thing and waits for a result
after sending multiple frames to the hardware to chew on.

So with OpenMAX the hardware is always busy, while with VA-API it constantly
turns on/off.

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