I use your qml-cvcamera, but the following error occurs, and the program core. 
Tell me It depends on what opencv library. 

 

D/dalvikvm(20935): Added shared lib 
/data/data/com.KangLinStudio.RabbitIm/lib/libQt5Xml.so 0x417d36d0

D/dalvikvm(20935): No JNI_OnLoad found in 
/data/data/com.KangLinStudio.RabbitIm/lib/libQt5Xml.so 0x417d36d0, skipping init

D/dalvikvm(20935): Trying to load lib 
/data/data/com.KangLinStudio.RabbitIm/qt-reserved-files/plugins/platforms/android/libqtforandroid.so
 0x417d36d0

D/dalvikvm(20935): Added shared lib 
/data/data/com.KangLinStudio.RabbitIm/qt-reserved-files/plugins/platforms/android/libqtforandroid.so
 0x417d36d0

I/Qt (20935): qt start

D/dalvikvm(20935): Trying to load lib 
/data/data/com.KangLinStudio.RabbitIm/qt-reserved-files/plugins/mediaservice/libqtmedia_android.so
 0x417d36d0

D/dalvikvm(20935): Added shared lib 
/data/data/com.KangLinStudio.RabbitIm/qt-reserved-files/plugins/mediaservice/libqtmedia_android.so
 0x417d36d0

D/dalvikvm(20935): Trying to load lib 
/data/data/com.KangLinStudio.RabbitIm/lib/libnative_camera_r4.0.0.so 0x417d36d0

W/System.err(20935): java.lang.reflect.InvocationTargetException

W/System.err(20935): at java.lang.reflect.Method.invokeNative(Native Method)

W/System.err(20935): at java.lang.reflect.Method.invoke(Method.java:511)

W/System.err(20935): at 
org.qtproject.qt5.android.bindings.QtActivity.loadApplication(QtActivity.java:248)

W/System.err(20935): at 
org.qtproject.qt5.android.bindings.QtActivity.startApp(QtActivity.java:649)

W/System.err(20935): at 
org.qtproject.qt5.android.bindings.QtActivity.onCreate(QtActivity.java:880)

W/System.err(20935): at android.app.Activity.performCreate(Activity.java:4479)

W/System.err(20935): at 
android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1050)

W/System.err(20935): at 
android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2041)

W/System.err(20935): at 
android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2104)

W/System.err(20935): at 
android.app.ActivityThread.access$600(ActivityThread.java:134)

W/System.err(20935): at 
android.app.ActivityThread$H.handleMessage(ActivityThread.java:1247)

W/System.err(20935): at android.os.Handler.dispatchMessage(Handler.java:99)

W/System.err(20935): at android.os.Looper.loop(Looper.java:154)

W/System.err(20935): at 
android.app.ActivityThread.main(ActivityThread.java:4624)

W/System.err(20935): at java.lang.reflect.Method.invokeNative(Native Method)

W/System.err(20935): at java.lang.reflect.Method.invoke(Method.java:511)

W/System.err(20935): at 
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)

W/System.err(20935): at 
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)

W/System.err(20935): at dalvik.system.NativeStart.main(Native Method)

W/System.err(20935): Caused by: java.lang.UnsatisfiedLinkError: Cannot load 
library: reloc_library[1311]: 102 cannot locate 
'_ZN7android14SurfaceTextureC1Ejbj'...

W/System.err(20935): at java.lang.Runtime.load(Runtime.java:340)

W/System.err(20935): at java.lang.System.load(System.java:521)

W/System.err(20935): at 
org.qtproject.qt5.android.QtNative.loadBundledLibraries(QtNative.java:151)

W/System.err(20935): at 
org.qtproject.qt5.android.QtActivityDelegate.loadApplication(QtActivityDelegate.java:424)

W/System.err(20935): ... 19 more

D/ActivityThread(20935): ACT-AM_ON_RESUME_CALLED ActivityRecord{417d1810 
token=android.os.BinderProxy@417d0b00 
{com.KangLinStudio.RabbitIm/org.qtproject.qt5.android.bindings.QtActivity}}

D/ActivityThread(20935): ACT-LAUNCH_ACTIVITY handled : 0 / 
ActivityRecord{417d1810 token=android.os.BinderProxy@417d0b00 
<mailto:token=android.os.BinderProxy@417d0b00> 

 

 

 

发件人: [email protected] 
[mailto:[email protected]] 代表 Ayberk ?zgür
发送时间: 2014年10月23日 14:47
收件人: [email protected]
主题: Re: [Development] QCamera don't capture video in android

 

QCamera being buggy on Android is one of the reasons why we wrote qml-cvcamera. 
The other is support for various devices, such as Kinect and PointGrey cameras.

On 23. 10. 14 08:19, Kojo Tero wrote:



Hello,

 

Please take a look at the Qt bugreports.

For example this:  <https://bugreports.qt-project.org/browse/QTBUG-37525> 
https://bugreports.qt-project.org/browse/QTBUG-37525

Or maybe this:  <https://bugreports.qt-project.org/browse/QTBUG-41273> 
https://bugreports.qt-project.org/browse/QTBUG-41273 

 

It seems that video recording on Android depends on the device manufacturer.

 

I suggest trying to get a log out of the device and opening a new bug (if it 
isn’t a known bug).

 

Best regards,

Tero

 

From:  <mailto:[email protected]> 
[email protected] [ 
<mailto:[email protected]> 
mailto:[email protected]] On Behalf 
Of kl222
Sent: 22. lokakuuta 2014 15:53
To:  <mailto:[email protected]> [email protected]
Subject: [Development] QCamera don't capture video in android

 

Description

QCamera don't capture video in android. Run the attached example.

But it can work in windows and linux.

Is it bug or code is wrong? If code is wrong, tall me how to write.

*         Environment: 

operating system:android 
qt version:
qt 5.3.1 
qt 5.3.2
qt 5.4.0-beta1

 

 






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-- 
Ayberk Özgür, Ph.D. Student
Member of the Robotics Group in the CHILI Laboratory, EPFL
www.ayberkozgur.com <http://www.ayberkozgur.com> 
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