[FFmpeg-devel] [PATCH] nvenc: Propagate desired number of reference frames.

Christophe Gisquet christophe.gisquet at gmail.com
Fri Jan 23 12:26:19 CET 2015


2015-01-23 10:54 GMT+01:00 Timo Rothenpieler <timo at rothenpieler.org>:
> This would also forward the ffmpeg default, 1, to nvenc, instead of the
> nvenc default, 0, which lets the driver decide what is best. I'm not sure if
> this is desireable and how much it affects the quality.

In that case, why not set ffmpeg's default to 0, which would mean
"auto". As 0 is not possible as soon as inter frames are used, this is
easily identifiable. Unfortunately, all affected encoders using it (ie
except nvenc, which would use the same convention) must be modified to
detect and change that 0 back to 1.


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