[FFmpeg-user] mpeg4 encoder using qscale to set open VBR seems broken?

Carl Eugen Hoyos cehoyos at ag.or.at
Wed Dec 4 12:45:04 CET 2013

Arne Lie <Arne.Lie <at> sintef.no> writes:

> Earlier versions of ffmpeg could manage static Q-scale 
> values to produce pure open loop VBR content, even 
> with the mv4 motion vector estimation enabled. Current 
> version seems to have this option broken

Please either find the change introducing this regression 
or (if you want me to find it which I will do) please 
explain how I can reproduce the regression, ie how do I 
know that the output is broken?

Or does the command simply fail? (Complete, uncut console 
output missing.)

Carl Eugen

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