opencv - java.lang.ExceptionInInitializerError in Android Project -


i'm trying create android application can record video and, during recording, should capture frames in order process them. when try run app on emulator (using eclipse juno, opencv4android ver. 2.4.5, , android-ndk), have result in logcat:

05-13 18:15:34.555: d/dalvikvm(1595): trying load lib /data/app-lib/com.example.provavideocapture-1/libjnivideocapture.so 0x40ce89b0 05-13 18:15:34.555: e/dalvikvm(1595): dlopen("/data/app-lib/com.example.provavideocapture-1/libjnivideocapture.so") failed: cannot load library: soinfo_link_image(linker.cpp:1635): not load library "libopencv_java.so" needed "libjnivideocapture.so"; caused load_library(linker.cpp:745): library "libopencv_java.so" not found 05-13 18:15:34.555: w/dalvikvm(1595): exception ljava/lang/unsatisfiedlinkerror; thrown while initializing lcom/example/provavideocapture/mainactivity; 05-13 18:15:34.555: w/dalvikvm(1595): class init failed in newinstance call (lcom/example/provavideocapture/mainactivity;) 05-13 18:15:34.555: d/androidruntime(1595): shutting down vm 05-13 18:15:34.555: w/dalvikvm(1595): threadid=1: thread exiting uncaught exception (group=0x40a71930) 05-13 18:15:34.575: e/androidruntime(1595): fatal exception: main 05-13 18:15:34.575: e/androidruntime(1595): java.lang.exceptionininitializererror 05-13 18:15:34.575: e/androidruntime(1595):     @ java.lang.class.newinstanceimpl(native method) 05-13 18:15:34.575: e/androidruntime(1595):     @ java.lang.class.newinstance(class.java:1319) 05-13 18:15:34.575: e/androidruntime(1595):     @ android.app.instrumentation.newactivity(instrumentation.java:1054) 05-13 18:15:34.575: e/androidruntime(1595):     @ android.app.activitythread.performlaunchactivity(activitythread.java:2097) 05-13 18:15:34.575: e/androidruntime(1595):     @ android.app.activitythread.handlelaunchactivity(activitythread.java:2230) 05-13 18:15:34.575: e/androidruntime(1595):     @ android.app.activitythread.access$600(activitythread.java:141) 05-13 18:15:34.575: e/androidruntime(1595):     @ android.app.activitythread$h.handlemessage(activitythread.java:1234) 05-13 18:15:34.575: e/androidruntime(1595):     @ android.os.handler.dispatchmessage(handler.java:99) 05-13 18:15:34.575: e/androidruntime(1595):     @ android.os.looper.loop(looper.java:137) 05-13 18:15:34.575: e/androidruntime(1595):     @ android.app.activitythread.main(activitythread.java:5041) 05-13 18:15:34.575: e/androidruntime(1595):     @ java.lang.reflect.method.invokenative(native method) 05-13 18:15:34.575: e/androidruntime(1595):     @ java.lang.reflect.method.invoke(method.java:511) 05-13 18:15:34.575: e/androidruntime(1595):     @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:793) 05-13 18:15:34.575: e/androidruntime(1595):     @ com.android.internal.os.zygoteinit.main(zygoteinit.java:560) 05-13 18:15:34.575: e/androidruntime(1595):     @ dalvik.system.nativestart.main(native method) 05-13 18:15:34.575: e/androidruntime(1595): caused by: java.lang.unsatisfiedlinkerror: cannot load library: soinfo_link_image(linker.cpp:1635): not load library "libopencv_java.so" needed "libjnivideocapture.so"; caused load_library(linker.cpp:745): library "libopencv_java.so" not found 05-13 18:15:34.575: e/androidruntime(1595):     @ java.lang.runtime.loadlibrary(runtime.java:371) 05-13 18:15:34.575: e/androidruntime(1595):     @ java.lang.system.loadlibrary(system.java:535) 05-13 18:15:34.575: e/androidruntime(1595):     @ com.example.provavideocapture.mainactivity.<clinit>(mainactivity.java:21) 05-13 18:15:34.575: e/androidruntime(1595):     ... 15 more

it code:

1) mainactivity.java

package com.example.provavideocapture; import android.os.bundle; import android.app.activity; import android.view.menu; import android.widget.textview;  public class mainactivity extends activity {  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);     textview mytextfield = (textview)findviewbyid(r.id.mytextfield);     mytextfield.settext(stringfromjnicpp());  }  public native string stringfromjnicpp();  static{     system.loadlibrary("jnivideocapture"); }  }

2) jnivideocapture.cpp

#include <jni.h> #include <string.h> #include <android/log.h> #include <opencv2/opencv.hpp>  extern "c" { jniexport jstring jnicall java_com_example_provavideocapture_mainactivity_stringfromjnicpp(jnienv * env, jobject obj); };      jniexport jstring jnicall java_com_example_provavideocapture_mainactivity_stringfromjnicpp(jnienv * env, jobject obj){  /*videocapture cap(0); //open default camera if (!cap.isopened()) //check if succedeed     return -1;  mat edges; namedwindow("edges",1); for(;;){     mat frame;     cap>>frame;     cvtcolor(frame,edges,cv_bgr2gray);     gaussianblur(edges,edges,size(7,7),1.5,1.5);     canny(edges,edges,0,30,3);     imshow("edges",edges);     if(waitkey(30)>=0) break; }*/ return env->newstringutf("hello cpp");  }

3) android.mk

local_path := $(call my-dir)  include $(clear_vars)  include ../../desktop/android/opencv-2.4.5-android-sdk/sdk/native/jni/opencv.mk  local_module    := jnivideocapture local_c_includes += $(local_path) local_ldlibs     += -llog -ldl local_src_files := jnivideocapture.cpp   include $(build_shared_library)

i've tried copy manually in dir libs of project library libopencv_java.so, taking opencv tutorial project, , i've loaded jnivideocapture in mainactivity, without better results, because when run project, library automatically removed libs/.

how can fix problem?

just add line:

opencv_lib_type:=static

right after:

include $(clear_vars)

you didn't link (statically) opencv library project - mistake.


Comments

Post a Comment

Popular posts from this blog

php - cannot display multiple markers in google maps v3 from traceroute result -

i'm newbie in php mysql , google maps v3. have problems in google maps v3. made traceroute web based , map traceroute's result in google maps v3 final project of college education. have try many tutorials didn't work. have tried tutorials in forum nothing worked. problem cannot display multiple markers got location data database. maybe because i'm newbie , not know how do. confuse looping show markers. here code <?php error_reporting(e_all ^ (e_notice)); ini_set('max_execution_time', 360); $enable_log_user = false; global $ip, $host_name, $host_ip; $host = @$_post['host']; $trace = @$_post['trace']; $self = $_server['php_self']; include("phpsqlajax_dbinfo.php"); $connection = mysql_connect ('127.0.0.1', $username, $password); if (!$connection) { die('not connected : ' . mysql_error());} $db_selected = mysql_select_db($database, $connection); if (!$db_selected) { die ('can\'t use db : ...
Read more

c# - DetailsView in ASP.Net - How to add another column on the side/add a control in each row? -

i have detailsview control on page used edit various fields of record, works in respect. i looking way add 1 column (and if works, why not more) right, absolutely read-only, show same fields of record comparison purposes. i aware there no obvious way such thing out of box detailsview . have looked other controls (transposed gridview , recommended formview , listview ), nothing satisfies. have special data binding setup using detailsview , can't out of without losing features. anyone on how "hack in" additional columns (for display only) on detailsview ? the solution have now, use second detailsview , visible set false in aspx. in code, make sure databind hidden detailsview hosts data third column first, initial detailsview named itemdetails . and in item created event, pass third column html rendering of hidden controls (in last code block) : protected void itemdetails_itemcreated(object sender, eventargs e) { if (dataite...
Read more

javascript - firefox memory leak -

i have following script (i use raphaeljs also) draws circle, waits 1 second, draws circle again, etc (you can copy paste - functional, need include raphael raphaeljs.com): <div id="holder"> </div> <script src="raphael.js" type="text/javascript"></script> <script> var paper = raphael(10, 50, 320, 200); var rad = math.pi / 180; var finangle = 0; function sector(cx, cy, r, startangle, endangle, params) { var x1 = cx + r * math.cos(-startangle * rad), x2 = cx + r * math.cos(-endangle * rad), y1 = cy + r * math.sin(-startangle * rad), y2 = cy + r * math.sin(-endangle * rad); return ["m", cx, cy, "l", x1, y1, "a", r, r, 0, +(endangle - startangle > 180), 0, x2, y2]; } var path = sector(100,100,50,0,180); var arc = paper.path(path); function draw() { path = sector(100,100,50,0,finangle); ...
Read more