[FFmpeg-user] Rotating webm videos

[Rex East]

On Sat, Mar 23, 2019 at 7:46 PM Michael Koch
<astroelectronic at t-online.de> wrote:
>
> As far as I know, rotating without re-encoding isn't possible. Try this:
>
> ffmpeg -i input.webm -vf rotate=PI/2 output.webm
>

Thank you Michael for the reply and information.

However, that command resulted in the video being cropped to a square
(original video is in portrait mode), and there is still significant
quality loss...