On Sun, May 28, 2017 at 12:14 PM, Gyan <gyando...@gmail.com> wrote: > If you do, I suggest 'mdar' for main_dar which is the only one that ought > to be required. > > The scale filter adjusts the SAR of the result so that the DAR is preserved > i.e. when a 100x100 canvas w/ SAR of 2.0 is scaled to 50x100, the result > will have SAR 4.0. In the scale2ref filter, this adjustment is made so that > the ref's DAR is effected onto the scaled result. I don't believe your > patch changes this behaviour. Now, the overlay filter does not respect the > overlay input's SAR - a 100x100 canvas of SAR 2 is overlaid as a square - > so having a shorthand for the main DAR and promoting its use will silently > enforce a visually correct-looking input for overlays and other compositing > uses.
Sounds good. If my understanding is correct, you would recommend changing the scale2ref=iw/6:iw/(6*main_a) [main][ref] example to scale2ref=iw/6:iw/(6*mdar) [main][ref] correct? Thanks, Kevin _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
