我在一个Android应用程序中工作。在我的应用程序中，我使用opencv本机相机捕获图像。当我打开相机捕捉图像时，应用程序崩溃了。显示“致命信号11（SIGSEGV）在0x00000020（代码= 1）”的日志文件。我不知道它为什么会崩溃。谁能告诉我可能出现什么问题？此代码在模拟器中工作。但是当我在设备中使用时，它崩溃了。我使用opencv人脸检测样本。代码段如下，
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
Log.i(TAG, "onCreate");
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
Log.i(TAG, "Trying to load OpenCV library");
if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_2, this, mOpenCVCallBack))
{
Log.e(TAG, "Cannot connect to OpenCV Manager");
}
}
private BaseLoaderCallback mOpenCVCallBack = new BaseLoaderCallback(this) {
@Override
public void onManagerConnected(int status) {
switch (status) {
case LoaderCallbackInterface.SUCCESS:
{
Log.i(TAG, "OpenCV loaded successfully");
// Load native libs after OpenCV initialization
System.loadLibrary("detection_based_tracker");
// Create and set View
mView = new FdView(mAppContext);
mView.setDetectorType(mDetectorType);
mView.setMinFaceSize(0.2f);
setContentView(mView);
// Check native OpenCV camera
if( !mView.openCamera() ) {
AlertDialog ad = new AlertDialog.Builder(mAppContext).create();
ad.setCancelable(false); // This blocks the 'BACK' button
ad.setMessage("Fatal error: can't open camera!");
ad.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
finish();
}
});
ad.show();
}
} break;
default:
{
super.onManagerConnected(status);
} break;
}
}
};
public FdView(Context context) {
super(context);
try {
InputStream is = context.getResources().openRawResource(R.raw.lbpcascade_frontalface);
File cascadeDir = context.getDir("cascade", Context.MODE_PRIVATE);
mCascadeFile = new File(cascadeDir, "lbpcascade_frontalface.xml");
FileOutputStream os = new FileOutputStream(mCascadeFile);
byte[] buffer = new byte[4096];
int bytesRead;
while ((bytesRead = is.read(buffer)) != -1) {
os.write(buffer, 0, bytesRead);
}
is.close();
os.close();
mJavaDetector = new CascadeClassifier(mCascadeFile.getAbsolutePath());
if (mJavaDetector.empty()) {
Log.e(TAG, "Failed to load cascade classifier");
mJavaDetector = null;
} else
Log.i(TAG, "Loaded cascade classifier from " + mCascadeFile.getAbsolutePath());
mNativeDetector = new DetectionBasedTracker(mCascadeFile.getAbsolutePath(), 0);
cascadeDir.delete();
} catch (IOException e) {
e.printStackTrace();
Log.e(TAG, "Failed to load cascade. Exception thrown: " + e);
}
}
@Override
protected Bitmap processFrame(VideoCapture capture) {
capture.retrieve(mRgba, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA);
capture.retrieve(mGray, Highgui.CV_CAP_ANDROID_GREY_FRAME);
if (mAbsoluteFaceSize == 0)
{
int height = mGray.rows();
if (Math.round(height * mRelativeFaceSize) > 0);
{
mAbsoluteFaceSize = Math.round(height * mRelativeFaceSize);
}
mNativeDetector.setMinFaceSize(mAbsoluteFaceSize);
}
MatOfRect faces = new MatOfRect();
if (mDetectorType == JAVA_DETECTOR)
{
if (mJavaDetector != null)
mJavaDetector.detectMultiScale(mGray, faces, 1.1, 2, 2 // TODO: objdetect.CV_HAAR_SCALE_IMAGE
, new Size(mAbsoluteFaceSize, mAbsoluteFaceSize), new Size());
}
else if (mDetectorType == NATIVE_DETECTOR)
{
if (mNativeDetector != null)
mNativeDetector.detect(mGray, faces);
}
else
{
Log.e(TAG, "Detection method is not selected!");
}
Rect[] facesArray = faces.toArray();
for (int i = 0; i < facesArray.length; i++)
Core.rectangle(mRgba, facesArray[i].tl(), facesArray[i].br(), FACE_RECT_COLOR, 3);
Bitmap bmp = Bitmap.createBitmap(mRgba.cols(), mRgba.rows(), Bitmap.Config.ARGB_8888);
try {
Utils.matToBitmap(mRgba, bmp);
} catch(Exception e) {
Log.e(TAG, "Utils.matToBitmap() throws an exception: " + e.getMessage());
bmp.recycle();
bmp = null;
}
return bmp;
}
日志如下。
I/dalvikvm-heap( 688): Grow heap (frag case) to 7.827MB for 1228816-byte allocation
D/dalvikvm( 688): GC_CONCURRENT freed <1K, 12% free 7852K/8839K, paused 2ms+2ms
D/dalvikvm( 688): GC_FOR_ALLOC freed 1200K, 25% free 6652K/8839K, paused 24ms
I/dalvikvm-heap( 688): Grow heap (frag case) to 7.827MB for 1228816-byte allocation
F/libc ( 688): Fatal signal 11 (SIGSEGV) at 0x00000020 (code=1)
I/DEBUG ( 83): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
I/DEBUG ( 83): Build fingerprint: 'softwinners/crane_q7/crane-q7:4.0.3/IML74K/20120709:eng/test-keys'
I/DEBUG ( 83): pid: 688, tid: 690 >>> com.user.mailconf <<<
I/DEBUG ( 83): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 00000020
I/DEBUG ( 83): r0 00000000 r1 000106e0 r2 000106e0 r3 40a091e8
I/DEBUG ( 83): r4 50a090f8 r5 408d3c58 r6 00000000 r7 000106e0
I/DEBUG ( 83): r8 50a09000 r9 000106e0 10 50a09100 fp 4085f394
I/DEBUG ( 83): ip 0000001f sp 100ffdd0 lr 4084efc4 pc 4085efac cpsr 80000010
I/DEBUG ( 83): d0 0000000000000000 d1 0000000000000000
I/DEBUG ( 83): d2 0000000000000000 d3 0000000000000000
I/DEBUG ( 83): d4 0000000000000000 d5 0000000000000000
I/DEBUG ( 83): d6 0000000000000000 d7 0000000000000000
I/DEBUG ( 83): d8 0000000000000000 d9 0000000000000000
I/DEBUG ( 83): d10 0000000000000000 d11 0000000000000000
I/DEBUG ( 83): d12 0000000000000000 d13 0000000000000000
I/DEBUG ( 83): d14 0000000000000000 d15 0000000000000000
I/DEBUG ( 83): d16 0000000000000000 d17 991f1f1f991f1f1f
I/DEBUG ( 83): d18 0707070703030303 d19 0000000000000000
I/DEBUG ( 83): d20 0100010001000100 d21 0100010001000100
I/DEBUG ( 83): d22 0000000000000000 d23 0000000000000000
I/DEBUG ( 83): d24 0000000000000000 d25 0000000000000000
I/DEBUG ( 83): d26 0067006700670067 d27 0067006700670067
I/DEBUG ( 83): d28 0067006700670067 d29 0067006700670067
I/DEBUG ( 83): d30 00308000002b4000 d31 003b40000035c000
I/DEBUG ( 83): scr 80000012
I/DEBUG ( 83):
I/DEBUG ( 83): #00 pc 00042fac /system/lib/libdvm.so
I/DEBUG ( 83): #01 pc 00032fc0 /system/lib/libdvm.so (_Z21dvmHeapBitmapScanWalkP10HeapBitmapPFvP6ObjectPvS3_ES3_)
I/DEBUG ( 83): #02 pc 000433c4 /system/lib/libdvm.so (_Z24dvmHeapScanMarkedObjectsv)
I/DEBUG ( 83): #03 pc 00033694 /system/lib/libdvm.so (_Z25dvmCollectGarbageInternalPK6GcSpec)
I/DEBUG ( 83): #04 pc 0007ba40 /system/lib/libdvm.so
I/DEBUG ( 83): #05 pc 0005f656 /system/lib/libdvm.so
I/DEBUG ( 83): #06 pc 00012be4 /system/lib/libc.so (__thread_entry)
I/DEBUG ( 83): #07 pc 00012738 /system/lib/libc.so (pthread_create)
I/DEBUG ( 83):
I/DEBUG ( 83): code around pc:
I/DEBUG ( 83): 4085ef8c e1a04000 e59f01e0 e1a07001 e79f5000 .@.......p...P..
I/DEBUG ( 83): 4085ef9c e5940000 e59530b0 e1500003 0a00003a .....0....P.:...
I/DEBUG ( 83): 4085efac e590c020 e31c0101 0a000011 ebfffeb9 ...............
I/DEBUG ( 83): 4085efbc e5940000 e5903020 e3130202 08bd81f0 .... 0..........
I/DEBUG ( 83): 4085efcc e594e008 e2846010 e35e0000 08bd81f0 .....`....^.....
I/DEBUG ( 83):
I/DEBUG ( 83): code around lr:
I/DEBUG ( 83): 4084efa4 e0888404 e16fcf16 e58d3004 e1a0100a ......o..0......
I/DEBUG ( 83): 4084efb4 e1a02009 e1c66c33 e088018c e12fff3b . ..3l......;./.
I/DEBUG ( 83): 4084efc4 e3560000 e59d3004 1afffff5 e5971010 ..V..0..........
I/DEBUG ( 83): 4084efd4 e597800c e068e001 e1a0142e e2844001 ......h......@..
I/DEBUG ( 83): 4084efe4 e2855c01 e1510004 2affffe7 e28dd00c .\....Q....*....
I/DEBUG ( 83):
I/DEBUG ( 83): stack:
I/DEBUG ( 83): 100ffd90 00000000
I/DEBUG ( 83): 100ffd94 408cef90 /system/lib/libdvm.so
I/DEBUG ( 83): 100ffd98 000106e0 [heap]
I/DEBUG ( 83): 100ffd9c 40fdc538 /dev/ashmem/dalvik-heap (deleted)
I/DEBUG ( 83): 100ffda0 000106e0 [heap]
I/DEBUG ( 83): 100ffda4 41165c10 /dev/ashmem/dalvik-heap (deleted)
I/DEBUG ( 83): 100ffda8 00000000
I/DEBUG ( 83): 100ffdac 80000000
I/DEBUG ( 83): 100ffdb0 40a0a0b8 /dev/ashmem/dalvik-heap (deleted)
I/DEBUG ( 83): 100ffdb4 4085ef28 /system/lib/libdvm.so
I/DEBUG ( 83): 100ffdb8 41165bf0 /dev/ashmem/dalvik-heap (deleted)
I/DEBUG ( 83): 100ffdbc 408d3c58 /system/lib/libdvm.so
I/DEBUG ( 83): 100ffdc0 4116c158 /dev/ashmem/dalvik-heap (deleted)
I/DEBUG ( 83): 100ffdc4 408d3c58 /system/lib/libdvm.so
I/DEBUG ( 83): 100ffdc8 df0027ad
I/DEBUG ( 83): 100ffdcc 00000000
I/DEBUG ( 83): #00 100ffdd0 00100000 [heap]
I/DEBUG ( 83): 100ffdd4 10000100
I/DEBUG ( 83): 100ffdd8 00000000
I/DEBUG ( 83): 100ffddc 0001079c [heap]
I/DEBUG ( 83): 100ffde0 50a09000
I/DEBUG ( 83): 100ffde4 4084efc4 /system/lib/libdvm.so
I/DEBUG ( 83): #01 100ffde8 408d3c58 /system/lib/libdvm.so
I/DEBUG ( 83): 100ffdec 80000000
I/DEBUG ( 83): 100ffdf0 ffffffff
I/DEBUG ( 83): 100ffdf4 000106c8 [heap]
I/DEBUG ( 83): 100ffdf8 000106e0 [heap]
I/DEBUG ( 83): 100ffdfc 408cef90 /system/lib/libdvm.so
I/DEBUG ( 83): 100ffe00 fffffe4c
I/DEBUG ( 83): 100ffe04 7fffffff
I/DEBUG ( 83): 100ffe08 00000000
I/DEBUG ( 83): 100ffe0c 0008b5db [heap]
I/DEBUG ( 83): 100ffe10 408d3c58 /system/lib/libdvm.so
I/DEBUG ( 83): 100ffe14 4085f3c8 /system/lib/libdvm.so
I/DEBUG ( 992): debuggerd: Jul 9 2012 16:58:08
I/ActivityManager( 144): Process com.user.mailconf (pid 688) has died.
W/ActivityManager( 144): Force removing ActivityRecord{412fd3f8 com.user.mailconf/org.opencv.samples.fd.FdActivity}: app died, no saved state
D/V4L2CameraDevice( 87): stopDevice
D/CallbackNotifier( 87): storeMetaDataInBuffers, false
I/WindowManager( 144): WIN DEATH: Window{41274608 com.user.mailconf/org.opencv.samples.fd.FdActivity paused=false}
W/WindowManager( 144): Force-removing child win Window{4133c958 SurfaceView paused=false} from container Window{41274608 com.user.mailconf/org.opencv.samples.fd.FdActivity paused=false}
D/Zygote ( 85): Process 688 terminated by signal (11)
I/WindowManager( 144): MediaPlayer.is not PlayingVideo
W/WindowManager( 144): Failed looking up window
W/WindowManager( 144): java.lang.IllegalArgumentException: Requested window android.os.BinderProxy@4119ca18 does not exist
W/WindowManager( 144): at com.android.server.wm.WindowManagerService.windowForClientLocked(WindowManagerService.java:7156)
W/WindowManager( 144): at com.android.server.wm.WindowManagerService.windowForClientLocked(WindowManagerService.java:7147)
W/WindowManager( 144): at com.android.server.wm.WindowState$DeathRecipient.binderDied(WindowState.java:1529)
W/WindowManager( 144): at android.os.BinderProxy.sendDeathNotice(Binder.java:417)
W/WindowManager( 144): at dalvik.system.NativeStart.run(Native Method)
I/WindowManager( 144): WIN DEATH: null
V/TabletStatusBar( 210): setLightsOn(true)
D/V4L2CameraDevice( 87): cedarx_hardware_exit ok
W/CameraService( 87): native_window_api_disconnect failed: Broken pipe (-32), api: 6
I/CameraService( 87): Destroying camera 0
D/CallbackNotifier( 87): storeMetaDataInBuffers, false
W/AudioFlinger( 87): session id 7 not found for pid 87
W/AudioFlinger( 87): session id 8 not found for pid 87
D/dalvikvm( 337): GC_FOR_ALLOC freed 162K, 35% free 7073K/10823K, paused 26ms
W/InputManagerService( 144): Got RemoteException sending setActive(false) notification to pid 688 uid 10038
D/dalvikvm( 337): GC_FOR_ALLOC freed 267K, 35% free 7128K/10823K, paused 24ms
I/WindowManager( 144): MediaPlayer.is not PlayingVideo
I/wpa_supplicant( 455): [CTRL_IFACE]SIGNAL_POLL
D/dalvikvm( 337): GC_CONCURRENT freed <1K, 31% free 7536K/10823K, paused 3ms+5ms
D/dalvikvm( 337): GC_FOR_ALLOC freed 654K, 33% free 7322K/10823K, paused 26ms
I/dalvikvm-heap( 337): Grow heap (frag case) to 8.533MB for 1286224-byte allocation
D/dalvikvm( 337): GC_FOR_ALLOC freed 2K, 21% free 8575K/10823K, paused 24ms
D/dalvikvm( 337): GC_CONCURRENT freed 60K, 18% free 8964K/10823K, paused 2ms+4ms
D/dalvikvm( 337): GC_CONCURRENT freed 2240K, 28% free 7843K/10823K, paused 2ms+3ms
I/WindowManager( 144): MediaPlayer.is not PlayingVideo
I/WindowManager( 144): MediaPlayer.is not PlayingVideo
I/wpa_supplicant( 455): [CTRL_IFACE]SIGNAL_POLL
I/ActivityManager( 144): START {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.user.mailconf/.activity.Accounts} from pid 337
D/ViewRootImpl( 144): pckname = com.user.mailconf
D/dalvikvm( 993): Late-enabling CheckJNI
I/ActivityManager( 144): Start proc com.user.mailconf for activity com.user.mailconf/.activity.Accounts: pid=993 uid=10038 gids={3003, 1015, 1006}
I/dalvikvm( 993): Turning on JNI app bug workarounds for target SDK version 8...
D/OpenGLRenderer( 337): Flushing caches (mode 1)
D/dalvikvm( 85): GC_EXPLICIT freed 37K, 7% free 5611K/6019K, paused 3ms+37ms
D/OpenGLRenderer( 337): Flushing caches (mode 0)
D/dalvikvm( 85): GC_EXPLICIT freed <1K, 7% free 5611K/6019K, paused 3ms+10ms
D/dalvikvm( 85): GC_EXPLICIT freed <1K, 7% free 5611K/6019K, paused 7ms+4ms
I/ActivityThread( 993): Pub com.user.mailconf.messageprovider: com.user.mailconf.provider.MessageProvider
I/HubMail ( 993): Loading preferences from DB into Storage
D/dalvikvm( 993): GC_CONCURRENT freed 169K, 6% free 5929K/6279K, paused 2ms+9ms
I/HubMail ( 993): Preferences load took 45ms
I/wpa_supplicant( 455): [CTRL_IFACE]SIGNAL_POLL