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

[Reindl Harald]

Am 04.09.2016 um 14:32 schrieb Carl Eugen Hoyos:

2016-09-04 14:00 GMT+02:00 Reindl Harald <h.rei...@thelounge.net>:

Am 04.09.2016 um 13:57 schrieb Peter White:

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

This can have bad effects with FFmpeg and x264:
If you are lucky, you get a crash, in the worst case,
encoding succeeds but you get worse quality than
one-pass (wrong frames get the low quantizers)

long time means over years for all sort of videos

given that we use it for a long time now as default in our ffmpeg-wrapper, files are typically smaller than with single-pass and the quality is as expected the point is "can"

signature.asc
Description: OpenPGP digital signature

_______________________________________________
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".