Android Error / MediaPlayerNative: Unable to create media player

[Oshio]

Couldn't find a useful answer in a google search.
I'm doing a simple test to play a video using QML.
The app is very simple:

1. Click in the choose button.
2. Select a video in the dialog.
3. Play the video.
   This works perfectly for Desktop.
   When I do the same for Android I can go until the 2nd step. Then, when I select the video I can read this error in Application Output:

E MediaPlayerNative: Unable to create media player
D Qt MediaPlayer: setDataSource failed.: status=0x80000000
V MediaPlayer: resetDrmState:  mDrmInfo=null mDrmProvisioningThread=null mPrepareDrmInProgress=false mActiveDrmScheme=false
V MediaPlayer: cleanDrmObj: mDrmObj=null mDrmSessionId=null
V MediaPlayer: resetDrmState:  mDrmInfo=null mDrmProvisioningThread=null mPrepareDrmInProgress=false mActiveDrmScheme=false
V MediaPlayer: cleanDrmObj: mDrmObj=null mDrmSessionId=null
W libEGL  : EGLNativeWindowType 0x700fb22010 disconnect failed

Its clear that the code can't create a MediaPlayer when running. I'm clueless from where I should start trying to find a solution.

Here a link to my test code in my github: https://github.com/Oshio09/QML-Video-Test

Using:
Qt 5.13.0
OS: Ubuntu 18.04.3 LTS [linux version 5.1.0-050100-generic]
Android 9