Re: [FFmpeg-user] 2 pass encoding with hevc_nvenc

[Reindl Harald]

Am 04.09.2016 um 14:24 schrieb 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. ;)

says who?

are you sure you understand how 2-pass-encoding works?

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