I built qt-gstreamer from source code on GitHub (version 1.2.0). Then I tried to run qmlplayer2 application (built from qt-gstreamer and use qtquick2videosink) on qt5 on Raspberry Pi3 but I got the following error at runtime:
(gst-plugin-scanner:3749): GStreamer-WARNING **: Failed to load plugin
'/usr/lib/gstreamer-0.10/libgstqt5videosink.so':
/usr/lib/gstreamer-0.10/libgstqt5videosink.so: undefined symbol:
_Z33gst_qt_quick2_video_sink_get_typev Failed to create qtquick2videosink. Make sure it is installed correctly
(qmlplayer2:8517): GStreamer-CRITICAL **: gst_bin_add: assertion
'GST_IS_ELEMENT (element)' failed
(qmlplayer2:8517): GStreamer-CRITICAL **:
gst_element_link_pads_filtered: assertion 'GST_IS_ELEMENT (dest)'
failed
Look at source code of qt-gstreamer, i found that the function gst_qt_quick2_video_sink_get_type() is implemented in gstqtquick2videosink.cpp but this file was not compiled due to missing configuration in cmake related to OpenGL.
I config cmake as below :
then rebuild and deploy new file libgstqt5videosink.so to /usr/lib/gstreamer-0.10/libgstqt5videosink.so on target device. After that qmlplayer2 application work fine.
Related
I am trying to convert my jar file using graalvm native image. However, it gives an error like,
native-image -jar NativeTest2.jar
Error: Platform specified as windows-amd64 isn't supported.
Error: Image build request failed with exit status 1
ERROR: Failed to map the library
Reason: couldn't execute "vmap": no such file or directory`
I have tried to re-compile the Xilinx library, but failed. Could anyone spare time to give me some help?
I added sub module library vertical-stepper-form version 0.9.8, while I set dependency of this library on my app module. I was able to do it successfully.
I am using Android Studio 3.0 with gradle version 4.1, few of the classes in project are in kotlin and others in java
When I started gradle sync it gave me this error. The gradle is not building and showing below issues :
/*********************************/
Information:Gradle tasks [:vertical-stepper-form:generateDebugSources,
:vertical-stepper-form:generateDebugAndroidTestSources,
:vertical-stepper-form:mockableAndroidJar,
:app:generateInstallDebugSources,
:app:generateInstallDebugAndroidTestSources, :app:mockableAndroidJar]
D:\Devavrata\project/package/src/main/res/abc.xml Error:error:
attribute 'com.spireon.install:src' not found.
D:\Devavrata\AbcProject\abc-Android\app\build\intermediates\incremental\mergeInstallDebugResources\stripped.dir\layout\activity_main.xml
Error:attribute 'com.spireon.install:src' not found. Error:failed
linking file resources. Error:java.util.concurrent.ExecutionException:
java.util.concurrent.ExecutionException:
com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for
details Error:java.util.concurrent.ExecutionException:
com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for
details Error:com.android.tools.aapt2.Aapt2Exception: AAPT2 error:
check logs for details Error:Execution failed for task
':app:processInstallDebugResources'.
Failed to execute aapt Information:BUILD FAILED in 24s Information:7 errors Information:0 warnings Information:See complete output in
console
/********************************/
What I have already tried :
I tried with changing import lines in xml also changing the android:src and srcCompat properties. Along with build/project cleaning and invalidating the cache.
Changing this line in gradle.properties
android.enableAapt2=false
Let me know if anyone has faced this issue
I follow an example in kernel.org to write an i2c driver but unfortunately when i compile i got this warning
WARNING: "i2c_register_board_info" [/home/pi/builddriver/samplei2c/pn535.ko] undefined!
Although compile with 1 warning and no error, I cannot insmod module. this is error when insmod
insmod: ERROR: could not insert module pn535.ko: Invalid module format
My question is how to solve the warning above?, I think it make .ko file to be invalid. Here is my source code on
pastebin
thank for your help!
That is not possible in a kernel module simply because the function i2c_register_board_info is not exported from the kernel source tree to the kernel modules (built using obj-m targets). You can achieve this by building your driver within the kernel source tree using (obj-y targets).
I have created a C++ dynamic library using Xcode. When I try to load this dynamic library in my app, I am getting the following error:
dyld: F_ADDFILESIGS failed for TestApp.app/DylibTest.dylib with
errno=1
What do i need to do in order to resolve this issue?