How to capture video from multiple cameras at the same time?

[aytunch]

Proposal

Recently, I see many social apps which can capture and save video from both cameras at the same time.
I can show my surroundings using the back camera and in a small PIP layout, I can show myself.

What needs to be done to accomplish this without losing fps and resolution?

• Can we record with both cameras at the same time and use ffmpeg to combine 2 videos?
• Can we use image streams from both cameras at the same time to overlay them on each other?

Are there any blockers for this functionality in Flutter?

@g-apparence are you going to continue implementing this awesome package btw? Google's camera package lacks a lot of features.

EDIT: here iOS native implementations on Multi Camera Capture (Gautier shared the Android link in the below comment):
https://www.wwdcnotes.com/notes/wwdc19/249/

[g-apparence]

Thank you for this really nice idea.
Didn't know some apps do that nowadays.
Did you see that on Android devices ?

I don't think using ffmpeg is the best solution. Processing a live video seems a bit overengineering at first sight.
I think you can simply use multiple texture.
Thing is, I don't think this is doable on all devices. The new multi camera hardware seems to open many doors.
https://developer.android.com/training/camera2/multiple-camera-streams-simultaneously

I'm searching some times to work on this. I hope summer will let me some time.
I would love to investigate more on the cameraX implementation.
(having a baby and a startup ain't letting much times...)

[aytunch]

I am glad that you find this use-case worthy
There are similar issues on the camera package but it seems like Flutter engineers won't be implementing it anytime soon.
flutter/flutter#51928 (comment)
Can't wait for this exciting feature. I think this kind of capabilities will bring Flutter one step ahead.
Also congratulations on the newborn :)

[istornz]

We released beta of multi camera feature with the v2.
You can test it right now 👍

[aytunch]

Great news @istornz Is there an ETA on the Android implementation of this feature?
You people are Awesome :)