title: Android device internal storage full path
body: <p>I am making AR video playback app.
  I want to play video from device storage instead of include it in the app.
  In the path field in video texture I should write the path of the internal storage.
  I wrote "/storage"emulated/0/Demo.mp4" (video's name is Demo)
  It works on the testing device, but when I try running the app on other device it does not work because the path differs (internal path is :/storage/sdcard0)
  What is the path should I wrote in the video texture to ensure running the app whatever the device is?</p>