#745 wrong proportion for rotated videos

[horia m]

when using vertically filmed videos (16:9), Styler rotates them automatically, but squashes them into a wrong proportion (8:16 instead of 16:8).
If one adds the necessary side frames to the video in that title, eg. 198 px for PAL DVD format, Styler does not generate the video correctly, but generates one that is rotated (vertical) but with proportions of 12,5:10 instead of 16:9, I tried to add more pixels to the side frames, but the result does not get better, the video images are still broader than they should, so in the wrong proportion.