[FFmpeg-devel] [PATCH] avfilter: implement halve filter

Carl Eugen Hoyos ceffmpeg at gmail.com
Wed Feb 15 13:04:17 EET 2017

2017-02-14 20:44 GMT+01:00 Daniel Oberhoff <danieloberhoff at googlemail.com>:
> filter strictly “halves” the image efficiently, which is often exactly what is needed

> likely much faster than using scale

I am not a native speaker but this seems to imply
you never tested the performance of the new filter:
Does it have another advantage over using scale?

> fully slice parallelized

(Not necessarily related)
libswscale support slices, I believe only the scale
filter never added support for it.

Carl Eugen

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