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POProblem using OpenCV2.3.1 with Android Native Activity
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  1. POProblem using OpenCV2.3.1 with Android Native Activity
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    copied!<p>i'm developing a computer vision application for Android. That work involves getting camera frames as fast as possible, so I'm trying to build a android application directly in c++ using "android_native_app_glue" and "libnative_camera" to get camera frames. It seems to be incompatible.</p> <p>I tested out 2 options. </p> <ol> <li>I tried to use OpenCV on the android NDK sample "NativeActivity", just make the few necessary changes (convert sample to c++, modify android.mk y application.mk and including using namespaces and includes) It gives the following error:</li> </ol> <p>sharedLibrary : libnative-activity.so C:/Development/android-opencv-wsp/samples/native-activity/obj/local/armeabi-v7a/objs/native-activity/main.o: In function <code>~Mat': C:\Development\android-opencv-wsp\samples\native-activity/../../OpenCV-2.3.1/share/OpenCV/../../include/opencv2/core/mat.hpp:297: undefined reference to</code>cv::fastFree(void*)' and so on</p> <ol> <li>I tried to import the necessary libraries to make a native activity on the OpenCV2.3.1 tutorial 3 sample. I simply modified the Android.mk and added:</li> </ol> <p>LOCAL_STATIC_LIBRARIES := android_native_app_glue</p> <p>Immediately, when I add this line, I get the following error: SharedLibrary : libnative_sample.so C:/Development/android-opencv-wsp/samples/tutorial-3-native/obj/local/armeabi-v7a/objs/native_sample/jni_part.o: In function <code>~Mat': C:\Development\android-opencv-wsp\samples\tutorial-3-native/../../OpenCV-2.3.1/share/OpenCV/../../include/opencv2/core/mat.hpp:297: undefined reference to</code>cv::fastFree(void*)' and so on...</p> <p>Please, has anyone tested a purely native activity with openCV2.3.1 and libnative_camera to get camera frames?</p> <p>Thanks in advance.</p>
 

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