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saki4510t / UVCCamera

library and sample to access to UVC web camera on non-rooted Android device
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Open and Closing Camera #369

Open xwilus opened 6 years ago

xwilus commented 6 years ago

Hi,

Thank you once again for your awesome library. We used it initially normally with a SurfaceView but the specific camera the client was fitted upside down so we needed to flip orientation. We did this by using your UVCCameraTextureView. This all worked awesomely until we updated the native libraries with a few fixes. We are using the IFrameCallBack to catch each frame and analysing it. This also works fine until we stop preview. The code for this is :

public void stopPreview() {
    Log.i(TAG, "stopPreview: Entering");
    synchronized (mSync) {
        streamingStopped = true;
        Log.i(TAG, "stopPreview: Checking USB Monitor");
        if (mUSBMonitor != null) {
            Log.i(TAG, "stopPreview: Unregistering USB Monitor");
            mUSBMonitor.unregister();
        }
        Log.i(TAG, "stopPreview: Checking Texture View");
        if (mUVCCameraView != null) {
            Log.i(TAG, "stopPreview: ");
            mUVCCameraView.onPause();
        }

    }
}

This then calls the UVCCameraTextureView's onDestroy in which we call the following code:

public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {

        Log.i(TAG, "Surface Texture Destroyed");
        synchronized (mSync) {
            streamingStopped = true;
            if (mUVCCamera != null) {
                mUVCCamera.stopPreview();
            }
            try {
                Thread.sleep(2000);
            } catch (InterruptedException e)
            {
                Log.e(TAG, "onSurfaceTextureDestroyed: Interruption Exception", e);
            }
            isPreview = false;
        }
        mPreviewSurface = null;
        return true;
    }

Note: The Thread.sleep was brought in to try and circumvent our current issues.

This works fine randomly. Sometimes when the stoppreview has been called the IFrameCallback it seems is still processing and then we get an native error as below. You will see the IFrameCallback executes, then code in between executes in which time the stoppreview etc. And when everything is done the last step in IFramcallback and then the native error occurs. I am a bit lost as how to get this resolved. Any advice please ? Logcat is below:

06-04 16:28:22.830 2868-5740/? I/UVC Camera Manager: mIFrameCallback - Frame Received 1 !! 06-04 16:28:22.830 2868-5740/? I/UVC Camera Manager: mIFrameCallback - Frame Received - Streaming Not Stopped!! 06-04 16:28:22.830 2868-5740/? I/UVC Camera Manager: mIFrameCallback - Copying pixels!! 06-04 16:28:22.832 2868-5740/? I/UVC Camera Manager: mIFrameCallback - Copying Bitmap!! 06-04 16:28:22.834 2868-5740/? I/UVC Camera Manager: mIFrameCallback - Sending Bitmap!! 06-04 16:28:22.835 2868-5740/? I/Multi Camera Fragment: frameReceived: Initialising Countdown 06-04 16:28:22.835 2868-5740/? I/Multi Camera Fragment: frameReceived: Flip Bitmap 06-04 16:28:22.836 686-771/? D/PowerManagerService: [api] acquire WakeLock flags=0x2000000a tag=WindowManager uid=1000 pid=686 ws=WorkSource{10228} pkg=android 06-04 16:28:22.854 2868-2868/? D/ViewRootImpl@d2de87a[EnrolmentActivity]: mHardwareRenderer.destroy()#1 06-04 16:28:22.855 686-2531/? V/WindowManager: Relayout Window{ff74fc3d0 u0 com.facetech.facetech_facial_sdk_example/com.facetech.facetech_android_sdk.EnrolmentActivity}: viewVisibility=8 req=1024x768 WM.LayoutParams{(0,0)(fillxfill) sim=#120 ty=1 fl=#81810180 pfl=0x20000 wanim=0x103046f vsysui=0x600 needsMenuKey=2 naviIconColor=0} 06-04 16:28:22.863 2868-2868/? D/ViewRootImpl@d2de87a[EnrolmentActivity]: Relayout returned: oldFrame=[0,0][1024,768] newFrame=[0,0][1024,768] result=0x5 surface={isValid=false 0} surfaceGenerationChanged=true 06-04 16:28:22.864 2868-2868/? D/ViewRootImpl@d2de87a[EnrolmentActivity]: MSG_WINDOW_FOCUS_CHANGED 0 06-04 16:28:22.876 296-296/? D/SurfaceFlinger: Display[0] configurations (* current):

xwilus commented 6 years ago

I have moved the actual stopPreview of UVC Camera after the framecallback has finished. That seems to be working now. Now I had it hang after number 319 but I am testing again. It hanged on the moment when I called stopreview in IFrameCallback. I am not sure if that is good practice though.

xwilus commented 6 years ago

Scrap that. I am still getting an issue when testing on the actual client device

xwilus commented 6 years ago

more Logging:

06-07 15:03:22.373 296-296/? D/SurfaceFlinger: Display[0] configurations (* current):

xwilus commented 6 years ago

@saki4510t Please help if you do not mind. I have implemented the fix https://github.com/saki4510t/UVCCamera/issues/259 but are still experiencing the same issue. I am not sure what else to look at.

xwilus commented 6 years ago

@saki4510t

Fuller Error log:

06-13 10:22:10.916 25521-28261/? A/libc: Fatal signal 6 (SIGABRT), code -6 in tid 28261 (Thread-23)

                                     [ 06-13 10:22:10.918   244:  244 W/         ]
                                     debuggerd: handling request: pid=25521 uid=10232 gid=10232 tid=28261

06-13 10:22:11.017 28266-28266/? A/DEBUG: 06-13 10:22:11.017 28266-28266/? A/DEBUG: Build fingerprint: 'samsung/gt5note10ltexx/gt5note10lte:7.1.1/NMF26X/P555XXU1CQJ3:user/release-keys' 06-13 10:22:11.017 28266-28266/? A/DEBUG: Revision: '7' 06-13 10:22:11.017 28266-28266/? A/DEBUG: ABI: 'arm' 06-13 10:22:11.017 28266-28266/? A/DEBUG: pid: 25521, tid: 28261, name: Thread-23 >>> com.facetech.facetech_facial_sdk_example <<< 06-13 10:22:11.017 28266-28266/? A/DEBUG: signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr -------- 06-13 10:22:11.022 28266-28266/? A/DEBUG: Abort message: 'art/runtime/java_vm_ext.cc:470] JNI DETECTED ERROR IN APPLICATION: obj == null' 06-13 10:22:11.022 28266-28266/? A/DEBUG: r0 00000000 r1 00006e65 r2 00000006 r3 00000008 06-13 10:22:11.022 28266-28266/? A/DEBUG: r4 848ff978 r5 00000006 r6 848ff920 r7 0000010c 06-13 10:22:11.022 28266-28266/? A/DEBUG: r8 00000000 r9 0000000a sl 000007ca fp 881ce000 06-13 10:22:11.022 28266-28266/? A/DEBUG: ip 0000000b sp 848ff5f0 lr ac2a6fe7 pc ac2a9868 cpsr 200d0010 06-13 10:22:11.050 28266-28266/? A/DEBUG: backtrace: 06-13 10:22:11.050 28266-28266/? A/DEBUG: #00 pc 0004a868 /system/lib/libc.so (tgkill+12) 06-13 10:22:11.050 28266-28266/? A/DEBUG: #01 pc 00047fe3 /system/lib/libc.so (pthread_kill+34) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #02 pc 0001dbad /system/lib/libc.so (raise+10) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #03 pc 00019321 /system/lib/libc.so (libc_android_abort+34) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #04 pc 00017388 /system/lib/libc.so (abort+4) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #05 pc 0031b5d5 /system/lib/libart.so (_ZN3art7Runtime5AbortEPKc+328) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #06 pc 000b5385 /system/lib/libart.so (_ZN3art10LogMessageD2Ev+1132) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #07 pc 0023a5cd /system/lib/libart.so (ZN3art9JavaVMExt8JniAbortEPKcS2+1664) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #08 pc 0023a833 /system/lib/libart.so (_ZN3art9JavaVMExt9JniAbortFEPKcS2_z+66) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #09 pc 0026adcd /system/lib/libart.so (_ZN3art3JNI15CallVoidMethodVEP7_JNIEnvP8_jobjectP10_jmethodIDSt9va_list+488) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #10 pc 0000d040 /data/app/com.facetech.facetech_facial_sdk_example-1/lib/arm/libUVCCamera.so (_ZN7_JNIEnv14CallVoidMethodEP8_jobjectP10_jmethodIDz+52) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #11 pc 0000f100 /data/app/com.facetech.facetech_facial_sdk_example-1/lib/arm/libUVCCamera.so (_ZN10UVCPreview19do_capture_callbackEP7_JNIEnvP9uvc_frame+160) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #12 pc 0000f238 /data/app/com.facetech.facetech_facial_sdk_example-1/lib/arm/libUVCCamera.so (_ZN10UVCPreview20do_capture_idle_loopEP7_JNIEnv+56) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #13 pc 0000f398 /data/app/com.facetech.facetech_facial_sdk_example-1/lib/arm/libUVCCamera.so (_ZN10UVCPreview10do_captureEP7_JNIEnv+104) 06-13 10:22:11.051 28266-28266/? A/DEBUG: #14 pc 0000f3e8 /data/app/com.facetech.facetech_facial_sdk_example-1/lib/arm/libUVCCamera.so (_ZN10UVCPreview19capture_thread_funcEPv+68) 06-13 10:22:11.052 28266-28266/? A/DEBUG: #15 pc 00047ab3 /system/lib/libc.so (_ZL15__pthread_startPv+22) 06-13 10:22:11.052 28266-28266/? A/DEBUG: #16 pc 00019f55 /system/lib/libc.so (__start_thread+6)

cbo3344 commented 6 years ago

UVCPreview.cpp do_capture_callback : if(iframecallback_fields.onFrame != NULL && buf != NULL){ env->CallVoidMethod(mFrameCallbackObj, iframecallback_fields.onFrame, buf); }

xwilus commented 6 years ago

Thank you. Will try it

hjhcs121 commented 5 years ago

Thank you. Will try it

Do you solve the issue?

jjjjbababy commented 4 years ago

Thank you. Will try it

Do you solve the issue?