On Sun, Jun 4, 2017 at 1:23 PM, Kevin Mark <kmark...@gmail.com> wrote:
> > If we were to use "iw/4:-1" in place of "iw/4:ow/mdar": > 640 / 4 = 160. So the new width for [main] would be 160. > 360 / 4 = 90. So the new height for [main] would be 90. > 160 / 90 = 16 / 9 so [main] now has the same aspect ratio as [ref] > which is probably what you do not want. > Now that this feature has been applied, it may be helpful to check if one of the W/H arguments is of the form '-n' and log a warning that this will force the ref's display aspect ratio. The warning should also convey the expression to use: 'oh*mdar' or 'ow/mdar' , as the case may be. Additionally, since the output SAR will be adjusted to force the ref's DAR, it would be helpful to add a warning for that (tell users to append setsar=1 after the scale) --or-- (ideally) patch the filter so that the main's DAR is preserved. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
