MediaProjection on mekotronics TV box in portrait mode distorted

[Moomoozer]

Describe the bug
Remote screen gets distorted when enabling fast mode after prompt.

To Reproduce
Installed DroidVnc as normal on an Android mekotronics TV box in portrait mode
used Avnc / RealVnc client apps for android

YouCut_20241206_080616337.mp4

Expected Behavior

When connecting the droidVNC, a prompt recommends fast mode which screws of the client view

Logs/Backtraces
N/A

Environment

• droidVNC-NG version: 2.7.3
• Android version: "Android TV OS 12"
• Client-side OS and version: 12
• VNC client and version: AVNC 2.6.3 Android / RealVnc 4.9.2 Android

Additional context
In addition to fixing the problem, please allow users to disable the nag screen with a simple switch option in the ui.

[bk138]

Thanks for reporting! Few questions:

• Does fast mode work when you start with it, i.e. give the screen share permission right at the start?
• Does the output of https://gitlab.com/vijai/screenrecorder look scrambled as well (uses the same screen recording API)?

[Moomoozer]

Not sure what you mean, fast mode has never worked without distortion on this particular device. The screenrecorder app worked fine full screen. I usually use XRecorder and it did exhibit the exact same distortion issue until I changed the setting from "Normal mode" to "Performance mode", which is properly the same as giving users the option of disabling what you refer to as fast mode.

[bk138]

We'd need an open source screen recorder that works for you so I can look into their source code and apply the change to droidVNC-NG. I only know https://gitlab.com/vijai/screenrecorder so far, this worked for you?

[Moomoozer]

Yes, the screenrecorder app you referred to was tested and working out of the box with no distortion except for the audio.

[bk138]

@Moomoozer Thanks for the swift reply, I'll have a look.

It's a bit hard to see from your video due to the black background, would "landscape screen recording is set into portrait mode" describe it correctly?

Did you test screenrecorder in portrait mode?

[Moomoozer]

It was tested in portrait mode which was set to 90 degrees in Android system display settings at the time of the video recording

[bk138]

Note to self: https://gitlab.com/vijai/screenrecorder/-/blob/master/app/src/main/java/com/orpheusdroid/screenrecorder/services/RecorderService.java?ref_type=heads#L694 is how they do it.