linker error: undefined reference to `AndroidSurface_updateSurface' .....

[gascani]

When I compile the project I have the errors: How can i sove them?

SharedLibrary : libffmpeg_jni.so
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::VideoDriver_updateSurface()': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:75: undefined reference toAndroidSurface_updateSurface'
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::VideoDriver_getPixels(int, int, void**)': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:70: undefined reference toAndroidSurface_getPixels'
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::VideoDriver_unregister()': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:65: undefined reference toAndroidSurface_unregister'
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::VideoDriver_register(_JNIEnv*, _jobject*)': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:60: undefined reference toAndroidSurface_register'
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::AudioDriver_write(void*, int)': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:53: undefined reference toAndroidAudioTrack_write'
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::AudioDriver_reload()': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:48: undefined reference toAndroidAudioTrack_reload'
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::AudioDriver_stop()': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:43: undefined reference toAndroidAudioTrack_stop'
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::AudioDriver_flush()': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:38: undefined reference toAndroidAudioTrack_flush'
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::AudioDriver_set(int, unsigned int, int, int)': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:33: undefined reference toAndroidAudioTrack_set'
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::AudioDriver_start()': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:22: undefined reference toAndroidAudioTrack_start'
/home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/obj/local/armeabi/libmediaplayer.a(output.o): In function Output::AudioDriver_unregister()': /home/marco/sviluppo/havlenapetr-FFMpeg-cc53d91/jni/libmediaplayer/output.cpp:17: undefined reference toAndroidAudioTrack_unregister'
collect2: ld returned 1 exit status

[gascani]

I'm working with Ubuntu + ndk r5b

[gascani]

solved: the problem are ndk r5b. With the ndk 4 it's ok!

[bdictator]

EXCELLENT!!!
THANKS A MILLION!!