On date Monday 2014-12-22 15:11:56 +0100, Arnaud Bienner encoded: > Hi, > > Looking at the examples provided with ffmpeg (2.5) there are two examples > to scale an image if I'm right: scaling_video.c but also filtering_video.c, > which filter is "scale=78:24" so I assumed it is also doing some scaling. >
> I believe that once the filter will be parsed and interpreted, this will > lead to same underlying code being executed, but I just wanted to be sure. > Or is there any reason to prefer on method over the other, regarding > performance/features available? (except that filters are probably more > convenient to use, but here I'm really interested in performance issues, or > features missing when using filters and vice versa). The scale filter provides a high-level wrapper around libswscale. If you don't want/need to use other filters, e.g. to build complex filtergraphs, then probably it's better to use libswscale directly, to not incur in the libavfilter filtering (relatively small) overhead. -- FFmpeg = Fundamentalist Formidable Mean Prodigious Exciting Gem _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
