[FFmpeg-devel] [PATCH] avfilter: add hstack & vstack filter

[Carl Eugen Hoyos]

Paul B Mahol <onemda <at> gmail.com> writes:

> >> +Stack streams horizontally.
> >
> > Out of curiosity:
> > Is this faster than overlay or overlay and pad?
> 
> Of course it is faster

Should this be mentioned in the documentation?

> pad is slow, and how do you plan to stack
> without using pad.
> Also using overlay & pad for stacking is PITA 
> from user POW.

(I don't disagree with any of these!)

Carl Eugen