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#define LOG_TAG "org.opencv.highgui.VideoCapture"
#include "common.h"
#include "opencv2/opencv_modules.hpp"
#ifdef HAVE_OPENCV_HIGHGUI
#include "opencv2/highgui/highgui_c.h"
#include "opencv2/highgui/highgui.hpp"
using namespace cv;
/// throw java exception
static void throwJavaException(JNIEnv *env, const std::exception *e, const char *method) {
std::string what = "unknown exception";
jclass je = 0;
if(e) {
std::string exception_type = "std::exception";
if(dynamic_cast<const cv::Exception*>(e)) {
exception_type = "cv::Exception";
je = env->FindClass("org/opencv/core/CvException");
}
what = exception_type + ": " + e->what();
}
if(!je) je = env->FindClass("java/lang/Exception");
env->ThrowNew(je, what.c_str());
LOGE("%s caught %s", method, what.c_str());
(void)method; // avoid "unused" warning
}
extern "C" {
//
// VideoCapture::VideoCapture()
//
JNIEXPORT jlong JNICALL Java_org_opencv_highgui_VideoCapture_n_1VideoCapture__
(JNIEnv* env, jclass);
JNIEXPORT jlong JNICALL Java_org_opencv_highgui_VideoCapture_n_1VideoCapture__
(JNIEnv* env, jclass)
{
static const char method_name[] = "highgui::VideoCapture::VideoCapture()";
try {
LOGD("%s", method_name);
VideoCapture* _retval_ = new VideoCapture( );
return (jlong) _retval_;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
}
//
// VideoCapture::VideoCapture(int device)
//
JNIEXPORT jlong JNICALL Java_org_opencv_highgui_VideoCapture_n_1VideoCapture__I
(JNIEnv* env, jclass, jint device);
JNIEXPORT jlong JNICALL Java_org_opencv_highgui_VideoCapture_n_1VideoCapture__I
(JNIEnv* env, jclass, jint device)
{
static const char method_name[] = "highgui::VideoCapture::VideoCapture(int device)";
try {
LOGD("%s", method_name);
VideoCapture* _retval_ = new VideoCapture( device );
return (jlong) _retval_;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
}
//
// double VideoCapture::get(int propId)
//
JNIEXPORT jdouble JNICALL Java_org_opencv_highgui_VideoCapture_n_1get
(JNIEnv* env, jclass, jlong self, jint propId);
JNIEXPORT jdouble JNICALL Java_org_opencv_highgui_VideoCapture_n_1get
(JNIEnv* env, jclass, jlong self, jint propId)
{
static const char method_name[] = "highgui::VideoCapture::get(int propId)";
try {
LOGD("%s", method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
double _retval_ = me->get( propId );
return _retval_;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
}
//
// bool VideoCapture::grab()
//
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1grab
(JNIEnv* env, jclass, jlong self);
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1grab
(JNIEnv* env, jclass, jlong self)
{
static const char method_name[] = "highgui::VideoCapture::grab()";
try {
LOGD("%s", method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
bool _retval_ = me->grab( );
return _retval_;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return false;
}
//
// bool VideoCapture::isOpened()
//
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1isOpened
(JNIEnv* env, jclass, jlong self);
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1isOpened
(JNIEnv* env, jclass, jlong self)
{
static const char method_name[] = "highgui::VideoCapture::isOpened()";
try {
LOGD("%s", method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
bool _retval_ = me->isOpened( );
return _retval_;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return false;
}
//
// bool VideoCapture::open(int device)
//
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1open__JI
(JNIEnv* env, jclass, jlong self, jint device);
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1open__JI
(JNIEnv* env, jclass, jlong self, jint device)
{
static const char method_name[] = "highgui::VideoCapture::open(int device)";
try {
LOGD("%s", method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
bool _retval_ = me->open( device );
return _retval_;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return false;
}
//
// bool VideoCapture::read(Mat image)
//
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1read
(JNIEnv* env, jclass, jlong self, jlong image_nativeObj);
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1read
(JNIEnv* env, jclass, jlong self, jlong image_nativeObj)
{
static const char method_name[] = "highgui::VideoCapture::read(Mat image)";
try {
LOGD("%s", method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
Mat& image = *((Mat*)image_nativeObj);
bool _retval_ = me->read( image );
return _retval_;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return false;
}
//
// void VideoCapture::release()
//
JNIEXPORT void JNICALL Java_org_opencv_highgui_VideoCapture_n_1release
(JNIEnv* env, jclass, jlong self);
JNIEXPORT void JNICALL Java_org_opencv_highgui_VideoCapture_n_1release
(JNIEnv* env, jclass, jlong self)
{
static const char method_name[] = "highgui::VideoCapture::release()";
try {
LOGD("%s", method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
me->release( );
return;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return;
}
//
// bool VideoCapture::retrieve(Mat image, int channel = 0)
//
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1retrieve__JJI
(JNIEnv* env, jclass, jlong self, jlong image_nativeObj, jint channel);
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1retrieve__JJI
(JNIEnv* env, jclass, jlong self, jlong image_nativeObj, jint channel)
{
static const char method_name[] = "highgui::VideoCapture::retrieve(Mat image, int channel)";
try {
LOGD("%s", method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
Mat& image = *((Mat*)image_nativeObj);
bool _retval_ = me->retrieve( image, channel );
return _retval_;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return false;
}
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1retrieve__JJ
(JNIEnv* env, jclass, jlong self, jlong image_nativeObj);
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1retrieve__JJ
(JNIEnv* env, jclass, jlong self, jlong image_nativeObj)
{
static const char method_name[] = "highgui::VideoCapture::retrieve(Mat image)";
try {
LOGD("%s", method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
Mat& image = *((Mat*)image_nativeObj);
bool _retval_ = me->retrieve( image );
return _retval_;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return false;
}
//
// bool VideoCapture::set(int propId, double value)
//
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1set
(JNIEnv* env, jclass, jlong self, jint propId, jdouble value);
JNIEXPORT jboolean JNICALL Java_org_opencv_highgui_VideoCapture_n_1set
(JNIEnv* env, jclass, jlong self, jint propId, jdouble value)
{
static const char method_name[] = "highgui::VideoCapture::set(int propId, double value)";
try {
LOGD("%s", method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
bool _retval_ = me->set( propId, value );
return _retval_;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return false;
}
//
// string VideoCapture::getSupportedPreviewSizes(...)
//
JNIEXPORT jstring JNICALL Java_org_opencv_highgui_VideoCapture_n_1getSupportedPreviewSizes
(JNIEnv *env, jclass, jlong self);
JNIEXPORT jstring JNICALL Java_org_opencv_highgui_VideoCapture_n_1getSupportedPreviewSizes
(JNIEnv *env, jclass, jlong self)
{
static const char method_name[] = "highgui::VideoCapture::getSupportedPreviewSizes(...)";
try {
LOGD("%s", method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
union {double prop; const char* name;} u;
u.prop = me->get(CV_CAP_PROP_SUPPORTED_PREVIEW_SIZES_STRING);
// VideoCapture::get can return 0.0 or -1.0 if it doesn't support
// CV_CAP_PROP_SUPPORTED_PREVIEW_SIZES_STRING
if (u.prop != 0.0 && u.prop != -1.0)
return env->NewStringUTF(u.name);
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return env->NewStringUTF("");
}
//
// native support for java finalize()
// static void VideoCapture::n_delete( __int64 self )
//
JNIEXPORT void JNICALL Java_org_opencv_highgui_VideoCapture_n_1delete
(JNIEnv*, jclass, jlong self);
JNIEXPORT void JNICALL Java_org_opencv_highgui_VideoCapture_n_1delete
(JNIEnv*, jclass, jlong self)
{
delete (VideoCapture*) self;
}
} // extern "C"
#endif // HAVE_OPENCV_HIGHGUI