Skip to content

O
opencv
Commit d4e098f4 authored by Andrey Pavlenko's avatar Andrey Pavlenko
Browse files
Options

enabling of VideoCapture(String) [fixing issue #3207] 

- enable auto-wrap of VideoCapture;
- minor refactoring of generated code templates.
parent 8d39350b
Expand all Hide whitespace changes
Inline Side-by-side
Showing with 87 additions and 257 deletions
modules/java/generator/gen_java.py
View file @ d4e098f4
......@@ -12,7 +12,7 @@ class_ignore_list = (
#core
"FileNode", "FileStorage", "KDTree",
#highgui
"VideoWriter", "VideoCapture",
"VideoWriter",
)
const_ignore_list = (
......@@ -512,6 +512,54 @@ JNIEXPORT jdoubleArray JNICALL Java_org_opencv_core_Core_n_1getTextSize
"resizeWindow" : {'j_code' : '', 'jn_code' : '', 'cpp_code' : '' },
}, # Highgui
'VideoCapture' :
{
"getSupportedPreviewSizes" :
{
'j_code' :
"""
public java.util.List<org.opencv.core.Size> getSupportedPreviewSizes()
{
String[] sizes_str = getSupportedPreviewSizes_0(nativeObj).split(",");
java.util.List<org.opencv.core.Size> sizes = new java.util.LinkedList<org.opencv.core.Size>();
for (String str : sizes_str) {
String[] wh = str.split("x");
sizes.add(new org.opencv.core.Size(Double.parseDouble(wh[0]), Double.parseDouble(wh[1])));
}
return sizes;
}
""",
'jn_code' :
"""\n private static native String getSupportedPreviewSizes_0(long nativeObj);\n""",
'cpp_code' :
"""
JNIEXPORT jstring JNICALL Java_org_opencv_highgui_VideoCapture_getSupportedPreviewSizes_10
(JNIEnv *env, jclass, jlong self);
JNIEXPORT jstring JNICALL Java_org_opencv_highgui_VideoCapture_getSupportedPreviewSizes_10
(JNIEnv *env, jclass, jlong self)
{
static const char method_name[] = "highgui::VideoCapture_getSupportedPreviewSizes_10()";
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);
return env->NewStringUTF(u.name);
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return env->NewStringUTF("");
}
""",
}, # getSupportedPreviewSizes
}, # VideoCapture
}
# { class : { func : {arg_name : ctype} } }
......@@ -878,21 +926,48 @@ public class %(jc)s {
self.add_func(decl)
self.cpp_code = StringIO()
self.cpp_code.write("""
self.cpp_code.write(Template("""
//
// This file is auto-generated, please don't edit!
//
#define LOG_TAG "org.opencv.%(m)s"
#define LOG_TAG "org.opencv.$m"
#include "common.h"
#include "opencv2/%(m)s/%(m)s.hpp"
#include "opencv2/opencv_modules.hpp"
#ifdef HAVE_OPENCV_$M
#include "opencv2/$m/$m.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" {
""" % {'m' : module} )
""").substitute( m = module, M = module.upper() ) )
# generate code for the classes
for name in self.classes.keys():
......@@ -907,7 +982,7 @@ extern "C" {
java_code = Template(java_code).substitute(imports = imports)
self.save("%s/%s+%s.java" % (output_path, module, self.classes[name].jname), java_code)
self.cpp_code.write( '\n} // extern "C"\n' )
self.cpp_code.write( '\n} // extern "C"\n\n#endif // HAVE_OPENCV_%s\n' % module.upper() )
self.save(output_path+"/"+module+".cpp", self.cpp_code.getvalue())
# report
......@@ -1266,23 +1341,18 @@ JNIEXPORT $rtype JNICALL Java_org_opencv_${module}_${clazz}_$fname ($argst);
JNIEXPORT $rtype JNICALL Java_org_opencv_${module}_${clazz}_$fname
($args)
{
static const char method_name[] = "$module::$fname()";
try {
LOGD("$module::$fname()");
LOGD("%s", method_name);
$prologue
$retval$cvname( $cvargs );
$epilogue$ret
} catch(cv::Exception e) {
LOGD("$module::$fname() catched cv::Exception: %s", e.what());
jclass je = env->FindClass("org/opencv/core/CvException");
if(!je) je = env->FindClass("java/lang/Exception");
env->ThrowNew(je, e.what());
$default
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
LOGD("$module::$fname() catched unknown exception (...)");
jclass je = env->FindClass("java/lang/Exception");
env->ThrowNew(je, "Unknown exception in JNI code {$module::$fname()}");
$default
throwJavaException(env, 0, method_name);
}
$default
}
......
modules/java/generator/src/cpp/VideoCapture.cpp deleted 100644 → 0
View file @ 8d39350b
This diff is collapsed.
modules/java/generator/src/java/highgui+VideoCapture.java deleted 100644 → 0
View file @ 8d39350b
package org.opencv.highgui;
import java.util.List;
import java.util.LinkedList;
import org.opencv.core.Mat;
import org.opencv.core.Size;
// C++: class VideoCapture
//javadoc: VideoCapture
public class VideoCapture {
protected final long nativeObj;
protected VideoCapture(long addr) {
nativeObj = addr;
}
//
// C++: VideoCapture::VideoCapture()
//
// javadoc: VideoCapture::VideoCapture()
public VideoCapture()
{
nativeObj = n_VideoCapture();
return;
}
//
// C++: VideoCapture::VideoCapture(int device)
//
// javadoc: VideoCapture::VideoCapture(device)
public VideoCapture(int device)
{
nativeObj = n_VideoCapture(device);
return;
}
//
// C++: double VideoCapture::get(int propId)
//
/**
* Returns the specified "VideoCapture" property.
*
* Note: When querying a property that is not supported by the backend used by
* the "VideoCapture" class, value 0 is returned.
*
* @param propId property identifier; it can be one of the following:
* * CV_CAP_PROP_FRAME_WIDTH width of the frames in the video stream.
* * CV_CAP_PROP_FRAME_HEIGHT height of the frames in the video stream.
*
* @see <a href="http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html#videocapture-get">org.opencv.highgui.VideoCapture.get</a>
*/
public double get(int propId)
{
double retVal = n_get(nativeObj, propId);
return retVal;
}
public List<Size> getSupportedPreviewSizes()
{
String[] sizes_str = n_getSupportedPreviewSizes(nativeObj).split(",");
List<Size> sizes = new LinkedList<Size>();
for (String str : sizes_str) {
String[] wh = str.split("x");
sizes.add(new Size(Double.parseDouble(wh[0]), Double.parseDouble(wh[1])));
}
return sizes;
}
//
// C++: bool VideoCapture::grab()
//
// javadoc: VideoCapture::grab()
public boolean grab()
{
boolean retVal = n_grab(nativeObj);
return retVal;
}
//
// C++: bool VideoCapture::isOpened()
//
// javadoc: VideoCapture::isOpened()
public boolean isOpened()
{
boolean retVal = n_isOpened(nativeObj);
return retVal;
}
//
// C++: bool VideoCapture::open(int device)
//
// javadoc: VideoCapture::open(device)
public boolean open(int device)
{
boolean retVal = n_open(nativeObj, device);
return retVal;
}
//
// C++: bool VideoCapture::read(Mat image)
//
// javadoc: VideoCapture::read(image)
public boolean read(Mat image)
{
boolean retVal = n_read(nativeObj, image.nativeObj);
return retVal;
}
//
// C++: void VideoCapture::release()
//
// javadoc: VideoCapture::release()
public void release()
{
n_release(nativeObj);
return;
}
//
// C++: bool VideoCapture::retrieve(Mat image, int channel = 0)
//
// javadoc: VideoCapture::retrieve(image, channel)
public boolean retrieve(Mat image, int channel)
{
boolean retVal = n_retrieve(nativeObj, image.nativeObj, channel);
return retVal;
}
// javadoc: VideoCapture::retrieve(image)
public boolean retrieve(Mat image)
{
boolean retVal = n_retrieve(nativeObj, image.nativeObj);
return retVal;
}
//
// C++: bool VideoCapture::set(int propId, double value)
//
/**
* Sets a property in the "VideoCapture".
*
* @param propId property identifier; it can be one of the following:
* * CV_CAP_PROP_FRAME_WIDTH width of the frames in the video stream.
* * CV_CAP_PROP_FRAME_HEIGHT height of the frames in the video stream.
* @param value value of the property.
*
* @see <a href="http://docs.opencv.org/modules/highgui/doc/reading_and_writing_images_and_video.html#videocapture-set">org.opencv.highgui.VideoCapture.set</a>
*/
public boolean set(int propId, double value)
{
boolean retVal = n_set(nativeObj, propId, value);
return retVal;
}
@Override
protected void finalize() throws Throwable {
n_delete(nativeObj);
super.finalize();
}
// C++: VideoCapture::VideoCapture()
private static native long n_VideoCapture();
// C++: VideoCapture::VideoCapture(string filename)
private static native long n_VideoCapture(java.lang.String filename);
// C++: VideoCapture::VideoCapture(int device)
private static native long n_VideoCapture(int device);
// C++: double VideoCapture::get(int propId)
private static native double n_get(long nativeObj, int propId);
// C++: bool VideoCapture::grab()
private static native boolean n_grab(long nativeObj);
// C++: bool VideoCapture::isOpened()
private static native boolean n_isOpened(long nativeObj);
// C++: bool VideoCapture::open(string filename)
private static native boolean n_open(long nativeObj, java.lang.String filename);
// C++: bool VideoCapture::open(int device)
private static native boolean n_open(long nativeObj, int device);
// C++: bool VideoCapture::read(Mat image)
private static native boolean n_read(long nativeObj, long image_nativeObj);
// C++: void VideoCapture::release()
private static native void n_release(long nativeObj);
// C++: bool VideoCapture::retrieve(Mat image, int channel = 0)
private static native boolean n_retrieve(long nativeObj, long image_nativeObj, int channel);
private static native boolean n_retrieve(long nativeObj, long image_nativeObj);
// C++: bool VideoCapture::set(int propId, double value)
private static native boolean n_set(long nativeObj, int propId, double value);
private static native String n_getSupportedPreviewSizes(long nativeObj);
// native support for java finalize()
private static native void n_delete(long nativeObj);
}
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment