ofVideoGrabber draws only a black rectangle

android
#1

Hi,

I have some trouble with the CameraExample. I tryed different -git dev of- versions, and working with ndk6 and sdk 2.2 on ubuntu. The grabber draws only a black rectangle with 0fps. Some build before I had 60fps, but also a black image.

In LogCat the camera seems to work fine… or not?
Some of my LogCat Messages:

V OF: Camera 0 facing: 0
V OF: Camera 1 facing: 1

E OMXCameraAdapter Initialize - Sensor 1 selected successfully
E - Preannouncement disabled successfully
D - IMX Component name: [IMX.TI.DUCATI1.VIDEO.CAMERA]

I OF: ofVideoGrabber: Camera initialized correctly"
E CameraHal: startPreview - Preview not started. Preview in progress flag set

Please let me know if you have any idea I can try…
Thanks in advance,
dan

#2

Was this solved?
i have the same problem with my Nexus, any ideas?

#3

Some devices seem to have problems with how the camera is initialized in OF, can you try substituting the videograber in ofxAndroid/ofAndroidLib/src/cc/openframeworks/ with the one i’ve attached and tell me if that solves the problem?

OFAndroidVideoGrabber.java.zip

#4

I’m also having trouble with this. I tried downloading the file posted above as well as grabbing the most recent version from the developer branch, but the grabber is just never getting a new frame and I’m left with a black rectangle on screen.