Urgent problem with Zxing and Glass

Raffaele Castagno

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Oct 28, 2013, 1:24:26 PM10/28/13

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I had a simple app working well with Google Glass XE8, but after updating to XE10 it's no longer working.

I now get a garbled preview which is not working anymore

https://code.google.com/p/zxing/issues/detail?id=926

I've tried searching on the web for a solution but I've been unable to find one so far.

Can anybody give me a workaround, as ugly as can it be, or at least an alternative?

I'm in urgent need for a demo...

Thanks anyway!

Sean Owen

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Oct 28, 2013, 2:17:54 PM10/28/13

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That almost certainly means the preview image format has changed.

In Android, the preview format must be NV1 (a type of YUV planar) by default and that's what the app expects.

I don't know about Glass, but if it follows the same rules, then that would suggest that the XE10 has a bug by sending a different format.

If not then the problem remains that it's a different image format. You would have to figure out what it is and then write new code to read that format.

It's not an app problem.

Raffaele Castagno

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Oct 28, 2013, 3:43:18 PM10/28/13

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Thanks to your hints at least I found this

http://stackoverflow.com/questions/19235477/google-glass-preview-image-scrambled-with-new-xe10-release/19434459#19434459

Will try this solution, thanks!

Raffaele Castagno

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Oct 28, 2013, 6:25:51 PM10/28/13

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For posterity, the solution described in the link, despite being a little convoluted, solves the problem.

Let's hope future versions of Glass will support zxing better.

Thanks!

Raffaele

Sean Owen

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Oct 28, 2013, 6:48:04 PM10/28/13

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Is preview size the issue? the app should read the supported preview sizes and only choose one that is said to be supported. I wonder if that's not the case. Maybe you can send in the camera params reported by ZXing Test for this thing?

If so that sounds like an easy thing to fix... in the XE10.

Raffaele Castagno

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Oct 30, 2013, 7:42:51 AM10/30/13

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I can confirm that the solution reported solves the problem.

From what I understand, is just a problem with the preview size.

I tried with ZXing Test, but the "get camera param" feature fails saying

10-30 12:36:03.641 1785-1785/com.google.zxing.client.android W/EncodeActivity﹕ Could not encode barcode

com.google.zxing.WriterException: Data too big

See the logcat below, here's the IMHO relevant piece of information

V/CameraManager﹕ Default preview size: 640, 360

V/CameraManager﹕ Default preview format: 17/yuv420sp

V/CameraManager﹕ Setting preview size: 640, 360

Here's the extended logcat:

10-30 12:36:01.703 222-255/? D/PowerManagerService﹕ setTimeoutLocked now=13865895 when=13871895 currentTimeoutOverride=-1 nextTimeoutOverride=-1 currentState=1 nextState=3

10-30 12:36:01.766 222-1062/? I/ActivityManager﹕ START {act=android.intent.action.VIEW cmp=com.google.zxing.client.androidtest/.CameraTestActivity (has extras)} from pid 5633

10-30 12:36:01.789 109-197/? D/audio_hw_primary﹕ select_output_device: output_type: 1, base_headset_volume: 1

10-30 12:36:01.922 222-256/? I/InputReader﹕ Reconfiguring input devices. changes=0x00000004

10-30 12:36:01.922 222-256/? I/InputReader﹕ Device reconfigured: id=1, name='sensor00fn11', surface size is now 1367x188, mode is 2

10-30 12:36:01.922 222-256/? I/InputReader﹕ Device reconfigured: id=10, name='virtual_touchpad', surface size is now 1601x201, mode is 2

10-30 12:36:01.969 222-1049/? I/ActivityManager﹕ Config changed: {1.0 0mcc0mnc en_US layoutdir=0 sw240dp w426dp h214dp smll land -touch -keyb/v/h -nav/h s.11}

10-30 12:36:01.985 287-287/? D/OpenGLRenderer﹕ Flushing caches (mode 0)

10-30 12:36:02.133 420-3922/? I/EnvelopeSender﹕ Envelope was sent.

10-30 12:36:02.282 109-906/? I/CameraService-GoogleCamera﹕ Acquire hardware jpeg encoder lock took: 0 mS

10-30 12:36:02.282 109-906/? D/libgcam﹕ [gcam.cc:2041]: Gcam::Pause

10-30 12:36:02.282 109-906/? I/CameraService﹕ Opening camera 0

10-30 12:36:02.282 109-906/? I/CameraHal﹕ (427e20) hardware/ti/omap4xxx/camera/CameraHal_Module.cpp:613 camera_device_open - camera_device open

10-30 12:36:02.328 287-287/? V/PhoneStatusBar﹕ setLightsOn(true)

10-30 12:36:02.407 109-906/? I/CameraHal﹕ (427e20) hardware/ti/omap4xxx/camera/CameraHal.cpp:4020 readALS - LIGHT read as 0

10-30 12:36:02.407 109-906/? I/CameraHal﹕ (427e20) hardware/ti/omap4xxx/camera/OMXCameraAdapter/OMXAlgo.cpp:1008 setInitialValue_AE - Setting LightSensor value 0

10-30 12:36:02.407 109-906/? D/CameraService-GoogleCamera-Utils﹕ getSystemPropertyBool: (persist.lab.gcam): default=true : result=true

10-30 12:36:02.407 109-906/? I/CameraService-GoogleCamera﹕ Skipping Gcam initialization (already done)

10-30 12:36:02.407 5633-5633/com.google.zxing.client.androidtest D/Camera-JNI﹕ Saving AndroidRuntime::getJNIEnv()=0x7466a8

10-30 12:36:02.430 5633-5633/com.google.zxing.client.androidtest V/CameraManager﹕ Default preview size: 640, 360

10-30 12:36:02.430 5633-5633/com.google.zxing.client.androidtest V/CameraManager﹕ Default preview format: 17/yuv420sp

10-30 12:36:02.430 5633-5633/com.google.zxing.client.androidtest V/CameraManager﹕ Setting preview size: 640, 360

10-30 12:36:02.430 109-674/? I/CameraService-Moments﹕ Moments is not enabled.

10-30 12:36:02.430 109-674/? D/CameraService-GoogleCamera﹕ android_gcam_Camera_setParameters

10-30 12:36:02.430 109-674/? D/CameraService-GoogleCamera﹕ Gcam was enabled from the Java app = false

10-30 12:36:02.430 109-674/? D/CameraService-GoogleCamera﹕ Gcam active for this shot = false

10-30 12:36:02.430 109-674/? D/CameraService-GoogleCamera﹕ gcam mode is set to false

10-30 12:36:02.500 109-109/? D/CameraService﹕ a = 0x45eb98

10-30 12:36:02.735 222-434/? I/ActivityManager﹕ START {act=android.intent.action.SEND typ=text/plain cmp=com.google.zxing.client.android/.encode.EncodeActivity (has extras)} from pid 5633

10-30 12:36:02.805 222-251/? I/ActivityManager﹕ Displayed com.google.zxing.client.androidtest/.CameraTestActivity: +922ms

10-30 12:36:02.836 109-5692/? I/CameraHal﹕ (4ce080) hardware/ti/omap4xxx/camera/CameraHalCommon.cpp:113 PPM - PPM: Standby to first shot: Sensor Change completed - :398.377 ms : 1383132962843 ms

10-30 12:36:02.930 5633-5633/com.google.zxing.client.androidtest D/Camera-JNI﹕ android_hardware_Camera_release - release camera

10-30 12:36:02.930 5633-5633/com.google.zxing.client.androidtest D/Camera-JNI﹕ android_hardware_Camera_release - native_release: context=0x8a70f8 camera=0x874218

10-30 12:36:02.930 5633-5633/com.google.zxing.client.androidtest D/Camera-JNI﹕ android_hardware_Camera_release - camera->setPreviewCallbackFlags(CAMERA_FRAME_CALLBACK_FLAG_NOOP)

10-30 12:36:02.930 5633-5633/com.google.zxing.client.androidtest D/Camera-JNI﹕ android_hardware_Camera_release - camera->disconnect()

10-30 12:36:02.938 109-675/? D/CameraService-GoogleCamera﹕ Metered = 0

10-30 12:36:02.938 109-675/? D/libgcam﹕ [gcam.cc:3232]: gcam_status:

10-30 12:36:02.938 109-675/? D/libgcam﹕ [gcam.cc:3235]: state ready idle? 1 merge_count 0 postmerge_count 0

10-30 12:36:02.938 109-675/? D/libgcam﹕ [gcam.cc:3238]: mem ESTIMATE (MB): merge 0.0 postmerge 0.0 overhead 2.0 capture 75.6 net 77.6

10-30 12:36:02.938 109-675/? D/libgcam﹕ [gcam.cc:3240]: actual *image* mem usage (MB): current 0 peak 143138952

10-30 12:36:02.938 109-675/? I/CameraService﹕ Destroying camera 0

10-30 12:36:02.961 109-675/? D/libgcam﹕ [gcam.cc:2046]: Gcam::Unpause

10-30 12:36:02.961 5633-5633/com.google.zxing.client.androidtest D/Camera-JNI﹕ android_hardware_Camera_release - context->decStrong(thiz)

10-30 12:36:03.094 1785-1787/com.google.zxing.client.android D/dalvikvm﹕ GC_CONCURRENT freed 496K, 17% free 9431K/11271K, paused 3ms+3ms

10-30 12:36:03.133 1785-1785/com.google.zxing.client.android D/dalvikvm﹕ GC_FOR_ALLOC freed 554K, 17% free 9387K/11271K, paused 33ms

10-30 12:36:03.203 1785-1785/com.google.zxing.client.android D/dalvikvm﹕ GC_FOR_ALLOC freed 511K, 17% free 9388K/11271K, paused 59ms

10-30 12:36:03.266 420-3922/? I/EnvelopeSender﹕ Envelope was sent.

10-30 12:36:03.313 1785-1787/com.google.zxing.client.android D/dalvikvm﹕ GC_CONCURRENT freed 504K, 17% free 9395K/11271K, paused 3ms+3ms

10-30 12:36:03.321 420-3922/? I/EnvelopeSender﹕ Envelope was sent.

10-30 12:36:03.383 420-3922/? I/EnvelopeSender﹕ Envelope was sent.

10-30 12:36:03.407 1785-1785/com.google.zxing.client.android D/dalvikvm﹕ GC_FOR_ALLOC freed 516K, 17% free 9389K/11271K, paused 85ms

10-30 12:36:03.461 420-3922/? I/EnvelopeSender﹕ Envelope was sent.

10-30 12:36:03.555 1785-1787/com.google.zxing.client.android D/dalvikvm﹕ GC_CONCURRENT freed 501K, 17% free 9399K/11271K, paused 7ms+7ms

10-30 12:36:03.625 1785-1785/com.google.zxing.client.android D/dalvikvm﹕ GC_FOR_ALLOC freed 519K, 17% free 9390K/11271K, paused 65ms

10-30 12:36:03.641 1785-1785/com.google.zxing.client.android W/EncodeActivity﹕ Could not encode barcode

com.google.zxing.WriterException: Data too big

at com.google.zxing.qrcode.encoder.Encoder.chooseVersion(Encoder.java:268)

at com.google.zxing.qrcode.encoder.Encoder.encode(Encoder.java:120)

at com.google.zxing.qrcode.QRCodeWriter.encode(QRCodeWriter.java:80)

at com.google.zxing.MultiFormatWriter.encode(MultiFormatWriter.java:94)

at com.google.zxing.client.android.encode.QRCodeEncoder.encodeAsBitmap(QRCodeEncoder.java:331)

at com.google.zxing.client.android.encode.EncodeActivity.onResume(EncodeActivity.java:202)

at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1154)

at android.app.Activity.performResume(Activity.java:4544)

at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2434)

at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2472)

at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1986)

at android.app.ActivityThread.access$600(ActivityThread.java:123)

at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)

at android.os.Handler.dispatchMessage(Handler.java:99)

at android.os.Looper.loop(Looper.java:137)

at android.app.ActivityThread.main(ActivityThread.java:4424)

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

at java.lang.reflect.Method.invoke(Method.java:511)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)

at dalvik.system.NativeStart.main(Native Method)

10-30 12:36:03.703 1785-1787/com.google.zxing.client.android D/dalvikvm﹕ GC_CONCURRENT freed 368K, 17% free 9416K/11271K, paused 2ms+7ms

10-30 12:36:03.735 287-287/? V/PhoneStatusBar﹕ setLightsOn(true)

10-30 12:36:04.047 222-251/? I/ActivityManager﹕ Displayed com.google.zxing.client.android/.encode.EncodeActivity: +1s86ms

10-30 12:36:04.196 420-3922/? I/EnvelopeSender﹕ Envelope was sent.

10-30 12:36:04.305 420-3922/? I/EnvelopeSender﹕ Envelope was sent.

10-30 12:36:04.992 222-251/? D/dalvikvm﹕ GC_EXPLICIT freed 508K, 38% free 12649K/20231K, paused 5ms+9ms

10-30 12:36:05.063 420-5650/? D/dalvikvm﹕ GC_FOR_ALLOC freed 1133K, 12% free 13265K/15047K, paused 32ms

10-30 12:36:05.305 420-3922/? I/EnvelopeSender﹕ Envelope was sent.

10-30 12:36:05.414 420-3922/? I/EnvelopeSender﹕ Envelope was sent.

Raffaele

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