Bug or not - preview image of video zooms in when pressing record (on 4:3 format)

[Anonymous]

Hi,

I'm not sure if this is a bug, and if somebody can replicate?

I'm doing some small personal project in 4/3 format, because of an old webcam..., and also want to capture 4/3 on my phone (a fairly new mid-class motorola moto G).

When in video mode, set to a 4/3 format (take 640 x 480) the preview zooms in when hitting the record button.

Which is enoying, because you 'set your scene' in the preview mode, then you hit record and the view changes...

I have also seen this in other apps (famous apps), and with other 4/3 formats. I don't have this effect in HD.

I found some stuff on the internet, about this. But mostly about coding.

Is there a work around, is this something fixable for other version, am i the only one having this problem?

I want to express that this is not a 'stabilization issue' in my opinion.

Not sure if this is the right place to post this.

Looking forward to some reply.

• maybe a work around could be if i could have a (or the) frame picture on the preview

Kr,
Sam

[WilfriedH]

Hi Sam, I tested your setting with open camera on a Samsung Galaxy S22.
The zooming in doesn't occur here. Neither in original API nor in Camera2 API.

[Anonymous]

This is a motorola - moto g84 g5

I have this effect also in Procam X, I can't test my default app because it does not support 4/3

I provide a link, but i am not a (camera) coder, so i did not read the details, in which it seems to adress the same issue.

Though it still would be nice if somebody could replicate.

I vaguely remember i had the same issues on my previous motorola G6 plus. So not sure, nor momentaraly replicatable, maybe try soon.

Here the mentioned link:
https://stackoverflow.com/questions/23844595/camera-preview-changes-after-start-recording-video

Thank you for testing Wilfried.

Kr,
Sam

[WilfriedH]

Hi Sam, I also tested your setting with open camera on a ZTE Blade V9 (Android 8.1).
The zooming in doesn't occur here. This device only has the old camera API.
Also the zooming in doesn't occur in Galaxy A14 (Android 14).
I followed the link to stackoverflow, and I agree to what is written there, i.e. the "Hardware vendors dictate how to handle the size and aspect ratio differences between the raw camera sensor resolution, the requested preview view and video capture sizes, and the subsequent processing (resize with interpolation) needed to fit the preview into screen resolution."
Kind regards, Wilfried

[Anonymous]

Ok,

So i presume, or suspect, this is a motorola device issue. And as long as there are no sufficient complaint of complaints, this is it.

Or i should have to jump into the code myself.

Still, if somebody reads this with a moto G would be nice to have a conformation.

Thank you Willfried.

Kr,
Sam