#include "precomp.hpp"
#if (defined WIN32 || defined _WIN32) && defined HAVE_DSHOW
+#include "cap_dshow.hpp"
/*
DirectShow-based Video Capturing module is based on
};
-
-
-
////////////////////////////////////// VIDEO INPUT /////////////////////////////////////
-
-
-
class videoInput{
public:
return hr;
}
-
-/********************* Capturing video from camera via DirectShow *********************/
-
-class CvCaptureCAM_DShow : public CvCapture
-{
-public:
- CvCaptureCAM_DShow();
- virtual ~CvCaptureCAM_DShow();
-
- virtual bool open( int index );
- virtual void close();
- virtual double getProperty(int);
- virtual bool setProperty(int, double);
- virtual bool grabFrame();
- virtual IplImage* retrieveFrame(int);
- virtual int getCaptureDomain() { return CV_CAP_DSHOW; } // Return the type of the capture object: CV_CAP_VFW, etc...
-
-protected:
- void init();
-
- int index, width, height,fourcc;
- int widthSet, heightSet;
- IplImage* frame;
- static videoInput VI;
-};
-
-
struct SuppressVideoInputMessages
{
SuppressVideoInputMessages() { videoInput::setVerbose(false); }
};
static SuppressVideoInputMessages do_it;
-videoInput CvCaptureCAM_DShow::VI;
-CvCaptureCAM_DShow::CvCaptureCAM_DShow()
+namespace cv
+{
+videoInput VideoCapture_DShow::g_VI;
+
+VideoCapture_DShow::VideoCapture_DShow(int index)
+ : m_index(-1)
+ , m_frame(0)
+ , m_width(-1)
+ , m_height(-1)
+ , m_fourcc(-1)
+ , m_widthSet(-1)
+ , m_heightSet(-1)
{
- index = -1;
- frame = 0;
- width = height = fourcc = -1;
- widthSet = heightSet = -1;
CoInitialize(0);
+ open(index);
}
-
-CvCaptureCAM_DShow::~CvCaptureCAM_DShow()
+VideoCapture_DShow::~VideoCapture_DShow()
{
close();
CoUninitialize();
}
-void CvCaptureCAM_DShow::close()
-{
- if( index >= 0 )
- {
- VI.stopDevice(index);
- index = -1;
- cvReleaseImage(&frame);
- }
- widthSet = heightSet = width = height = -1;
-}
-
-// Initialize camera input
-bool CvCaptureCAM_DShow::open( int _index )
-{
- int devices = 0;
-
- close();
- devices = VI.listDevices(true);
- if (devices == 0)
- return false;
- if (_index < 0 || _index > devices-1)
- return false;
- VI.setupDevice(_index);
- if( !VI.isDeviceSetup(_index) )
- return false;
- index = _index;
- return true;
-}
-
-bool CvCaptureCAM_DShow::grabFrame()
-{
- return true;
-}
-
-
-IplImage* CvCaptureCAM_DShow::retrieveFrame(int)
-{
- if( !frame || VI.getWidth(index) != frame->width || VI.getHeight(index) != frame->height )
- {
- if (frame)
- cvReleaseImage( &frame );
- int w = VI.getWidth(index), h = VI.getHeight(index);
- frame = cvCreateImage( cvSize(w,h), 8, 3 );
- }
-
- if (VI.getPixels( index, (uchar*)frame->imageData, false, true ))
- return frame;
- else
- return NULL;
-}
-
-double CvCaptureCAM_DShow::getProperty( int property_id )
+double VideoCapture_DShow::getProperty(int propIdx)
{
- long min_value,max_value,stepping_delta,current_value,flags,defaultValue;
+ long min_value, max_value, stepping_delta, current_value, flags, defaultValue;
- // image format proprrties
- switch( property_id )
+ switch (propIdx)
{
+ // image format properties
case CV_CAP_PROP_FRAME_WIDTH:
- return VI.getWidth(index);
-
+ return g_VI.getWidth(m_index);
case CV_CAP_PROP_FRAME_HEIGHT:
- return VI.getHeight(index);
-
+ return g_VI.getHeight(m_index);
case CV_CAP_PROP_FOURCC:
- return VI.getFourcc(index);
-
+ return g_VI.getFourcc(m_index);
case CV_CAP_PROP_FPS:
- return VI.getFPS(index);
- }
+ return g_VI.getFPS(m_index);
// video filter properties
- switch( property_id )
- {
case CV_CAP_PROP_BRIGHTNESS:
case CV_CAP_PROP_CONTRAST:
case CV_CAP_PROP_HUE:
case CV_CAP_PROP_WHITE_BALANCE_BLUE_U:
case CV_CAP_PROP_BACKLIGHT:
case CV_CAP_PROP_GAIN:
- if (VI.getVideoSettingFilter(index,VI.getVideoPropertyFromCV(property_id),min_value,max_value,stepping_delta,current_value,flags,defaultValue) ) return (double)current_value;
- }
+ if (g_VI.getVideoSettingFilter(m_index, g_VI.getVideoPropertyFromCV(propIdx), min_value, max_value, stepping_delta, current_value, flags, defaultValue))
+ return (double)current_value;
// camera properties
- switch( property_id )
- {
case CV_CAP_PROP_PAN:
case CV_CAP_PROP_TILT:
case CV_CAP_PROP_ROLL:
case CV_CAP_PROP_EXPOSURE:
case CV_CAP_PROP_IRIS:
case CV_CAP_PROP_FOCUS:
- if (VI.getVideoSettingCamera(index,VI.getCameraPropertyFromCV(property_id),min_value,max_value,stepping_delta,current_value,flags,defaultValue) ) return (double)current_value;
-
+ if (g_VI.getVideoSettingCamera(m_index, g_VI.getCameraPropertyFromCV(propIdx), min_value, max_value, stepping_delta, current_value, flags, defaultValue))
+ return (double)current_value;
}
// unknown parameter or value not available
return -1;
}
-
-bool CvCaptureCAM_DShow::setProperty( int property_id, double value )
+bool VideoCapture_DShow::setProperty(int propIdx, double propVal)
{
// image capture properties
bool handled = false;
- switch( property_id )
+ switch (propIdx)
{
case CV_CAP_PROP_FRAME_WIDTH:
- width = cvRound(value);
+ m_width = cvRound(propVal);
handled = true;
break;
case CV_CAP_PROP_FRAME_HEIGHT:
- height = cvRound(value);
+ m_height = cvRound(propVal);
handled = true;
break;
case CV_CAP_PROP_FOURCC:
- fourcc = (int)(unsigned long)(value);
- if ( fourcc == -1 ) {
+ m_fourcc = (int)(unsigned long)(propVal);
+ if (-1 == m_fourcc)
+ {
// following cvCreateVideo usage will pop up caprturepindialog here if fourcc=-1
// TODO - how to create a capture pin dialog
}
break;
case CV_CAP_PROP_FPS:
- int fps = cvRound(value);
- if (fps != VI.getFPS(index))
+ int fps = cvRound(propVal);
+ if (fps != g_VI.getFPS(m_index))
{
- VI.stopDevice(index);
- VI.setIdealFramerate(index,fps);
- if (widthSet > 0 && heightSet > 0)
- VI.setupDevice(index, widthSet, heightSet);
+ g_VI.stopDevice(m_index);
+ g_VI.setIdealFramerate(m_index, fps);
+ if (m_widthSet > 0 && m_heightSet > 0)
+ g_VI.setupDevice(m_index, m_widthSet, m_heightSet);
else
- VI.setupDevice(index);
+ g_VI.setupDevice(m_index);
}
- return VI.isDeviceSetup(index);
-
+ return g_VI.isDeviceSetup(m_index);
}
- if ( handled ) {
+ if (handled)
+ {
// a stream setting
- if( width > 0 && height > 0 )
+ if (m_width > 0 && m_height > 0)
{
- if( width != VI.getWidth(index) || height != VI.getHeight(index) )//|| fourcc != VI.getFourcc(index) )
+ if (m_width != g_VI.getWidth(m_index) || m_height != g_VI.getHeight(m_index) )//|| fourcc != VI.getFourcc(index) )
{
- int fps = static_cast<int>(VI.getFPS(index));
- VI.stopDevice(index);
- VI.setIdealFramerate(index, fps);
- VI.setupDeviceFourcc(index, width, height, fourcc);
+ int fps = static_cast<int>(g_VI.getFPS(m_index));
+ g_VI.stopDevice(m_index);
+ g_VI.setIdealFramerate(m_index, fps);
+ g_VI.setupDeviceFourcc(m_index, m_width, m_height, m_fourcc);
}
- bool success = VI.isDeviceSetup(index);
+ bool success = g_VI.isDeviceSetup(m_index);
if (success)
{
- widthSet = width;
- heightSet = height;
- width = height = fourcc = -1;
+ m_widthSet = m_width;
+ m_heightSet = m_height;
+ m_width = m_height = m_fourcc = -1;
}
return success;
}
}
// show video/camera filter dialog
- if ( property_id == CV_CAP_PROP_SETTINGS ) {
- VI.showSettingsWindow(index);
+ if (propIdx == CV_CAP_PROP_SETTINGS )
+ {
+ g_VI.showSettingsWindow(m_index);
return true;
}
//video Filter properties
- switch( property_id )
+ switch (propIdx)
{
case CV_CAP_PROP_BRIGHTNESS:
case CV_CAP_PROP_CONTRAST:
case CV_CAP_PROP_WHITE_BALANCE_BLUE_U:
case CV_CAP_PROP_BACKLIGHT:
case CV_CAP_PROP_GAIN:
- return VI.setVideoSettingFilter(index,VI.getVideoPropertyFromCV(property_id),(long)value);
+ return g_VI.setVideoSettingFilter(m_index, g_VI.getVideoPropertyFromCV(propIdx), (long)propVal);
}
//camera properties
- switch( property_id )
+ switch (propIdx)
{
case CV_CAP_PROP_PAN:
case CV_CAP_PROP_TILT:
case CV_CAP_PROP_EXPOSURE:
case CV_CAP_PROP_IRIS:
case CV_CAP_PROP_FOCUS:
- return VI.setVideoSettingCamera(index,VI.getCameraPropertyFromCV(property_id),(long)value);
+ return g_VI.setVideoSettingCamera(m_index, g_VI.getCameraPropertyFromCV(propIdx), (long)propVal);
}
return false;
}
+bool VideoCapture_DShow::grabFrame()
+{
+ return true;
+}
+bool VideoCapture_DShow::retrieveFrame(int, OutputArray frame)
+{
+ frame.create(Size(g_VI.getWidth(m_index), g_VI.getHeight(m_index)), CV_8UC3);
+ cv::Mat mat = frame.getMat();
+ return g_VI.getPixels(m_index, mat.ptr(), false, true );
+}
+int VideoCapture_DShow::getCaptureDomain()
+{
+ return CV_CAP_DSHOW;
+}
+bool VideoCapture_DShow::isOpened() const
+{
+ return (-1 != m_index);
+}
-CvCapture* cvCreateCameraCapture_DShow( int index )
+void VideoCapture_DShow::open(int index)
{
- CvCaptureCAM_DShow* capture = new CvCaptureCAM_DShow;
+ close();
+ int devices = g_VI.listDevices(true);
+ if (0 == devices)
+ return;
+ if (index < 0 || index > devices-1)
+ return;
+ g_VI.setupDevice(index);
+ if (!g_VI.isDeviceSetup(index))
+ return;
+ m_index = index;
+}
- try
- {
- if( capture->open( index ))
- return capture;
- }
- catch(...)
+void VideoCapture_DShow::close()
+{
+ if (m_index >= 0)
{
- delete capture;
- throw;
+ g_VI.stopDevice(m_index);
+ m_index = -1;
+ cvReleaseImage(&m_frame);
}
+ m_widthSet = m_heightSet = m_width = m_height = -1;
+}
- delete capture;
- return 0;
}
#endif
projects / profile / ivi / opencv.git / commitdiff