How to record video from background of application : Android

Question

I am developing an application which will be able to record video from background of application by using Service.

Problem description :

Answer 1

Here are some cool android projects regarding the same with some variations :

https://github.com/zeitgeist87/SpartanTimeLapseRecorder/blob/master/src/at/andreasrohner/spartantimelapserec/recorder/VideoRecorder.java - Control FPS of camera

https://www.sisik.eu/blog/android/media/camera2-from-service - Image from background camera

https://github.com/kevalpatel2106/android-hidden-camera/blob/master/hiddencamera/src/main/java/com/androidhiddencamera/HiddenCameraService.java

https://github.com/botyourbusiness/android-camera2-secret-picture-taker - Official

https://gist.github.com/joseph-zhong/c2a52a5507d6588bec2db9869c860114

https://github.com/ulysses4ever/Background-VideoRecorder