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Title: How to display video from two cameras on RK3288 Reload？ [Print This Page]

Author: larryyuan Time: 9/13/2017 20:53
Title: How to display video from two cameras on RK3288 Reload？

Hi Sir,

It works normally when just only one camera opened like below.

Camera mcamera = Camera.open(0);

Camera mcamera = Camera.open(1);

both the stream video are also ok to display.

BUT I try open two cameras to preview at the same time in Android APP.

it always crashed and seems like framework issue. Please help me out,

Many thanks!

Log:

java.lang.RuntimeException: Fail to connect to camera service

at android.hardware.Camera.<init>(Camera.java:497)

at android.hardware.Camera.open(Camera.java:342)

at com.goer.dualcamera.MainActivity$2.surfaceCreated(MainActivity.java:76)

at android.view.SurfaceView.updateWindow(SurfaceView.java:633)

at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:197)

at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:944)

at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2086)

at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1161)

at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6198)

at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)

at android.view.Choreographer.doCallbacks(Choreographer.java:580)

at android.view.Choreographer.doFrame(Choreographer.java:550)

at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)

at android.os.Handler.handleCallback(Handler.java:739)

at android.os.Handler.dispatchMessage(Handler.java:95)

at android.os.Looper.loop(Looper.java:135)

at android.app.ActivityThread.main(ActivityThread.java:5280)

at java.lang.reflect.Method.invoke(Native Method)

at java.lang.reflect.Method.invoke(Method.java:372)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:963)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:758)

Author: isle Time: 9/14/2017 09:45
two cameras? UVC?or mipi?

Author: larryyuan Time: 9/14/2017 12:16
yes.
one mipi camera and one hdmiin camera.

Author: isle Time: 9/15/2017 09:22
we have tested one UVC and one mipi ( or hdmiin),it works well.
but not one mipi and one hdmiin.

Author: larryyuan Time: 9/15/2017 11:44

isle Posted at 9/15/2017 09:22
we have tested one UVC and one mipi ( or hdmiin),it works well.
but not one mipi and one hdmiin.

hi isle,

could you tell me how to implement it with one UVC and hdmiin ? thank you very much.

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