CODEWITHSUNDEEP
androidadbscreen-capture
ScreenSoft
ScreenSoft

Reputation: 53

adb shell screencap return black image from video

I am trying to get a screenshot of a video on android 9 using standard command:

adb shell screencap -p /sdcard/printscreen.png

That works fine with any static content but just returns a black picture when trying to get screenshot of a video. I have seen quite a few similar questions, however do not seem to find an answer. Any suggestions?

Upvotes: 4

Views: 1442

Answers (1)

Franck E
Franck E

Reputation: 729

The issue seems to come from OpenGL. I have it working with:

1 - Open VLC on Android device
2 - Goto: Other => Settings
3 - Goto: Advanced => OpenGL ES2 usage
4 - Select "Force On"
5 - Back up one level, and select "Quit and restart application"

Alternatively, add the following line to data/data/org.videolan.vlc/shared_prefs/org.videolan.vlc_preferences.xml

<string name="opengl">1</string>

Now, the following command should work

adb shell screencap /sdcard/printscreen.png

Upvotes: 3

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