Rotate video 90º
**Is your feature request related to a problem? Please describe:**
Is there a way to rotate the image? I'd like to see a camera that is rotated 90º

**Describe the solution you'd like:**
Rotate the image

**Describe alternatives you've considered:**
rotate the image

**Additional context:**
Since the camera is 16:9 but is rotated the image would fit perfectly in portrait

the parameter for ffmpeg I believe is `transpose` with a value of 2 for example
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