[Ffmpeg-devel] swscaler integration
Thu Mar 16 06:06:01 CET 2006
On Wed, Mar 15, 2006 at 06:40:19PM +0100, Michel Bardiaux wrote:
> Dieter wrote:
> >Ken and Dennis did filters 30+ years ago. Just change from grep and cut to
> >video/audio filters:
> > ... | crop | scale | pad | text_overlay | aknobs | vknobs | ...
mjpegtools basically works this way, right? And of course
pbmplus/netpbm uses this model to process still images.
> Also: it is not difficult to design a command language so that the
> control of filters is outside the arguments of the ffmpeg command line.
Sort of like avisynth?
> So, decoupling crop/scale/pad may not be the best solution after
> all. But maybe that would have to be *another* filter?
The real difficulty is if you have to _seek_ in the data. The pipes
destroy that capability unless you implement buffering or require some
other way of doing I/O.
More information about the ffmpeg-devel