scale: make the filter parametric
authorStefano Sabatini <stefano.sabatini-lala@poste.it>
Sun, 27 Mar 2011 20:58:08 +0000 (22:58 +0200)
committerStefano Sabatini <stefano.sabatini-lala@poste.it>
Tue, 5 Apr 2011 13:38:34 +0000 (15:38 +0200)
commitd496d33d26c1781220c49b3ea0e69fcfcc759a8a
tree07352a82a0225b68326f4c720e49f3fea28dd21a
parent25601bc5649fb71f645e9a619871cc85170f5dd8
scale: make the filter parametric

Make the filter accept parametric expressions for the output video
size.

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
doc/filters.texi
libavfilter/avfilter.h
libavfilter/vf_scale.c