我从函数参数接收到Mat对象，当我将此对象分配给本地Mat参数时，给出了这个错误：
@IBOutlet var imageView: UIImageView!
@IBOutlet var MyImageView: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
// create tap gesture recognizer
let tapGesture = UITapGestureRecognizer(target: self, action: "tapGesture:")
// add it to the image view;
imageView.addGestureRecognizer(tapGesture)
// make sure imageView can be interacted with by user
imageView.userInteractionEnabled = true
}
func tapGesture(gesture: UIGestureRecognizer) {
// if the tapped view is a UIImageView then set it to imageview
if let imageView = gesture.view as? UIImageView { // if you subclass UIImageView, then change "UIImageView" to your subclass
// change the image on the MyImageView
MyImageView.image = imageView.image
// if you subclass UIImageView, then you could get the filename here.
}
}
其中： grafty-hr-main.cpp：97
********** Crash dump: **********
Build fingerprint: 'google/hammerhead/hammerhead:6.0/MRA58K/2256973:user/release-keys'
pid: 32563, tid: 333, name: Thread-12993 >>> com.adhamenaya <<<
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
Stack frame 10-22 09:44:20.605 14500 14500 F DEBUG : #00 pc 00232708 /data/app/com.adhamenaya-2/lib/arm/libGrafty.so (cv::Mat::operator=(cv::Ma
t const&)+244): Routine cv::Mat::operator=(cv::Mat const&) at D:/scryptech/ndk_project/OpenCV-android-sdk/sdk/native/jni/include/opencv2/core/mat.inl.
hpp:573
Stack frame 10-22 09:44:20.605 14500 14500 F DEBUG : #01 pc 0023b4ac /data/app/com.adhamenaya-2/lib/arm/libGrafty.so (GraftySystem::setCurrentF
rame(cv::Mat&)+308): Routine GraftySystem::setCurrentFrame(cv::Mat&) at C:\Users\aenaya\git\GraftyAndroid\GraftyAndroid/jni/grafty-system-settings.cpp
:65
Stack frame 10-22 09:44:20.605 14500 14500 F DEBUG : #02 pc 002b3374 /data/app/com.adhamenaya-2/lib/arm/libGrafty.so (Java_com_adhamenaya_Nativ
e_runGrafty+540): Routine Java_com_adhamenaya_Native_runGrafty at C:\Users\aenaya\git\GraftyAndroid\GraftyAndroid/jni/grafty-hr-main.cpp:97 (discrimin
ator 1)
Stack frame 10-22 09:44:20.605 14500 14500 F DEBUG : #03 pc 0036a491 /data/app/com.adhamenaya-2/oat/arm/base.odex (offset 0x29c000) (byte[] com
.adhamenaya.Native.runGrafty(java.lang.Long)+92)
Stack frame 10-22 09:44:20.605 14500 14500 F DEBUG : #04 pc 00369e3d /data/app/com.adhamenaya-2/oat/arm/base.odex (offset 0x29c000) (void com.a
dhamenaya.MainActivity$2.run()+328)
Stack frame 10-22 09:44:20.606 14500 14500 F DEBUG : #05 pc 729298d1 /data/dalvik-cache/arm/system@framework@boot.oat (offset 0x1eb1000)
和 grafty-system-settings.cpp：65
JNIEXPORT jbyteArray JNICALL Java_com_adhamenaya_Native_runGrafty(JNIEnv * env,jobject obj,jlong frame) {
cv::Mat& inFrame = *(cv::Mat*) frame;
line 97 >>>> gsys.setCurrentFrame(inFrame);
此void GraftySystem::setCurrentFrame(cv::Mat& frame) {
cv::Size2d imgRes;
float resRatio;
line 65 >>>>> this->nFrame = frame;
}
的调用方式如下：
JNI修改
mat.inl.hpp：573
private Mat mGray;
public Mat onCameraFrame(CvCameraViewFrame inputFrame) {
mRgba = inputFrame.rgba();
Imgproc.cvtColor(mRgba, mGray, Imgproc.COLOR_BGRA2GRAY);
if (mRgba.empty())
return null;
else if (mRgba.channels() > 1)
Imgproc.cvtColor(mRgba, mGray, Imgproc.COLOR_BGRA2GRAY);
else
mGray = mRgba;
return mRgba;
}
...
...
result = Native.runGrafty(mGray.getNativeObjAddr());
请帮助我弄清问题是什么？