I'm trying to create a talk but how do I specify the width/height of the output video.

I'm trying to create a 9:16 video at 1080x1920

However, the output comes back at a 1:1 aspect ratio with identical width and height.

My source image is a 9:16 photo at 1080x1920.

I just need the easiest way to create a vertical video so please let me know.

I need 1080p at 9:16 and 16:9 and I'm using this to generate synthetic video for and eval system I'm working on.

Please point me in the right direction.

It doesn't seem possible with the current API.

Maybe I"m wrong,?