[FFmpeg-user] 2 pass encoding with hevc_nvenc

[Peter White]

04.09.2016 14:00, Reindl Harald:
>
>
> Am 04.09.2016 um 13:57 schrieb Peter White:
>> But I never saw the point of running two passes to improve the quality
>> of a file encoded with CRF mode. The quality improvement must be very
>> small, I reckon. But the encoding time doubles--not worth it
>
> with smart params it don't double
>
> the first pass can be with a faster profile and skip audio entirely and
> so it's typically around 50% of a normal run and often far below

But that then defeats the point of having a /useable/ 1st-pass file. ;)