fb0)?

Asked Mar 11 '13 at 10:46

Active Dec 11 '14 at 13:16

Viewed 1,377 times

I am accessing (framebuffer) fb0 file from native code and successfully able to get image content with fb0. But if I play a video or open the camera, it gives me black screen.

At that time if I rotate the screen, it gives some images of video, again it goes to black display.

Can somebody help to know how to access video data from framebuffer or also want to know the reason why it is displaying images at time of screen rotation?

edited Mar 11 '13 at 11:09

asked Mar 11 '13 at 10:46

ankita gahoi

1,532
2
15
28

Did you try to invalidate the view each time a buffer is received ? – Manitoba Mar 11 '13 at 11:05
I am drawing it on PC application – ankita gahoi Mar 11 '13 at 11:07
Reading the screen contents in this way is not officially supported and the behaviour should therefore be considered as undefined. See e.g. [this post on the android-ndk discussion list](https://groups.google.com/forum/?fromgroups=#!topic/android-ndk/j438Uyfmy78) – Michael Mar 11 '13 at 11:22
But many applications using it. – ankita gahoi Mar 11 '13 at 12:05

How to get video content from framebuffer (/dev/graphics/fb0)?

0 Answers0