I wanted to compare, side-by-side, a tennis server that is left handed with another that is right handed. To make the rightie look like a leftie, I used the "Mirror" function and it worked very well. Saved the video as an mkv file and it worked well. (The 'mirrored' video is on the right and is as it should be.)
mkv- Worked well.
https://vimeo.com/197541582
When I tried to use the "Mirror" with just one video it looked fine on Kinovea. But when I saved it as an mp4 file it had reverted back to its original right-left orientation. The magnification boxes in the saved video seem to be in the original positions seen in Kinovea. But after the video is saved the magnifier selection box has not moved and is blank but the display box has the correct video of the player's elbow as when viewing in Kinovea. Videos that worked well in Kinovea now lost the effect of 'Mirror' after saving as a video file. Kinovea reversed the right-left with 'Mirror' but after saving the original right-left reappeared.
mp4 Failed.
https://vimeo.com/197566232
mkv Failed
https://vimeo.com/197600108
