[Development] 答复: QCamera don't capture video in android

Thu Oct 23 14:12:35 CEST 2014

It's because you're trying to use libnative_camera_r4.0.0.so while your 
device is not 4.0.0. Use the closest available library; for example if 
your device is 4.1.2, you should use libnative_camera_r4.1.1.so. This is 
a limitation of relying on OpenCV Manager that keeps around the correct 
library for your device, but we don't want to rely on it ourselves and 
for now we have to manually provide the library.

On 23. 10. 14 13:38, kl222 wrote:
>
> I use your qml-cvcamera, but the followingerroroccurs, and the 
> programcore. Tell me It depends onwhatopencvlibrary.
>
> 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 at 417d0b00 
> {com.KangLinStudio.RabbitIm/org.qtproject.qt5.android.bindings.QtActivity}}
>
> D/ActivityThread(20935): ACT-LAUNCH_ACTIVITY handled : 0 / 
> ActivityRecord{417d1810 token=android.os.BinderProxy at 417d0b00 
> <mailto:token=android.os.BinderProxy at 417d0b00>
>
> *发件人:*development-bounces+kl222=126.com at qt-project.org 
> [mailto:development-bounces+kl222=126.com at qt-project.org] *代表 
> *Ayberk ?zgür
> *发送时间:*2014年10月23日14:47
> *收件人:*development at qt-project.org
> *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
>
>     Or maybe this: 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:*development-bounces+tero.kojo=theqtcompany.com at qt-project.org
>     <mailto:development-bounces+tero.kojo=theqtcompany.com at qt-project.org>[mailto:development-bounces+tero.kojo=theqtcompany.com at qt-project.org]
>     *On Behalf Of *kl222
>     *Sent:* 22. lokakuuta 2014 15:53
>     *To:* development at qt-project.org <mailto:development at qt-project.org>
>     *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 codeis 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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>
>     Development at qt-project.org  <mailto:Development at qt-project.org>
>
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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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-- 
Ayberk Özgür, Ph.D. Student
Member of the Robotics Group in the CHILI Laboratory, EPFL
www.ayberkozgur.com

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