Bug: Camera from USB webcam device shows up with squished aspect ratio
When using an external USB webcam capture tool (such as Mokose USB3.0 HDMI/SDI Video Capture Card or Magewell USB Capture HDMI), the camera video appears in a 4:3 aspect ratio (instead of proper 16x9) and is squished (see photo). I'm using a MacBook Pro (Retina, 15-inch, Late 2013) with Catalina 10.15.4 and Character Animator 3.2. Note that the default MBP webcam does show up as a 4:3 cropped image (it is a 16x9 webcam), but the image is not squished and appears normal. Also, when opening the Characterizer tool and using the USB webcam capture tools, the video camera appears momentarily in a proper 16x9 window for a split second, and then squishes back to the 4:3 aspect ratio. See here for more details: https://community.adobe.com/t5/character-animator/camera-aspect-ratio-wrong-it-s-squished-4-3-instead-of-16-9/m-p/11132114?page=1#M13219
Brian Racherbaeumer commented
Yes, both of those webcam tools work fine in other apps on the same Mac. I use them in Wirecast as a virtual camera for Character Animator, and it then appears correctly in Ch, which is my current workaround. However this solution uses additional CPU, so I'd definitely prefer the webcam capture tools to work natively. :-)
Does the webcam image look OK in PhotoBooth or other Mac apps?