LibVLC for Android - JNI Error
Posted: 22 Sep 2014 19:07
Hi,
I am working on an Android application that embedded LibVLC to play RTSP streams.
I compiled LibVLC for Android(version 0.9.9) and imported the compiled code into my Android project.
I am following this samplehttps://bitbucket.org/edwardcw/libvlc-a ... ?at=master
The main codes are :
It works well with playing the single URL once.
But if I return to the previous activity and attempt to play it again, it will crash at this line:
And the error showing in LogCat is: 'JNI ERROR (app bug): attempt to use stale local reference'
After researching about this, it actually crashes at ''destroy_native_crash_handler()' in 'native_crash_handler.c'. It's a very similar issue with https://code.google.com/p/dolphin-playe ... tail?id=19
Then did a temporary fix: deleted this line: '(*env)->DeleteGlobalRef(env, j_libVLC);' from 'native_crash_handler.c', recompiled it and import the recompiled native code into my project, the crash is gone.
But I am afraid that the way I fixed it will cause other problems because I am new to JNI and know nothing about LibVLC.
Is it possible that it's a bug? Or maybe I am not using 'LibVLC.java' in the proper way but I couldn't find any other samples around usage of this class.
Any help in this matter would be highly appreciated.
Thanks a lot!
Liuting
I am working on an Android application that embedded LibVLC to play RTSP streams.
I compiled LibVLC for Android(version 0.9.9) and imported the compiled code into my Android project.
I am following this samplehttps://bitbucket.org/edwardcw/libvlc-a ... ?at=master
The main codes are :
Code: Select all
// Create a new media player
libvlc = LibVLC.getInstance();
libvlc.setHardwareAcceleration(LibVLC.HW_ACCELERATION_DISABLED);
libvlc.setSubtitlesEncoding("");
libvlc.setAout(LibVLC.AOUT_OPENSLES);
libvlc.setTimeStretching(true);
libvlc.setChroma("RV32");
libvlc.setVerboseMode(true);
LibVLC.restart(this);
EventHandler.getInstance().addHandler(mHandler);
holder.setFormat(PixelFormat.RGBX_8888);
holder.setKeepScreenOn(true);
MediaList list = libvlc.getMediaList();
list.clear();
list.add(new Media(libvlc, LibVLC.PathToURI(media)), false);
libvlc.playIndex(0);But if I return to the previous activity and attempt to play it again, it will crash at this line:
Code: Select all
LibVLC.restart(this);After researching about this, it actually crashes at ''destroy_native_crash_handler()' in 'native_crash_handler.c'. It's a very similar issue with https://code.google.com/p/dolphin-playe ... tail?id=19
Then did a temporary fix: deleted this line: '(*env)->DeleteGlobalRef(env, j_libVLC);' from 'native_crash_handler.c', recompiled it and import the recompiled native code into my project, the crash is gone.
But I am afraid that the way I fixed it will cause other problems because I am new to JNI and know nothing about LibVLC.
Is it possible that it's a bug? Or maybe I am not using 'LibVLC.java' in the proper way but I couldn't find any other samples around usage of this class.
Any help in this matter would be highly appreciated.
Thanks a lot!
Liuting