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probably fixed multi-threaded capturing from DShow cameras (ticket #1470)

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This commit is contained in:
Vadim Pisarevsky
2012-03-27 12:50:56 +00:00
parent b2a6a257b7
commit 8513ed08d0
1 changed files with 14 additions and 6 deletions
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20
modules/highgui/src/cap_dshow.cpp
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@@ -384,7 +384,7 @@ typedef _AMMediaType AM_MEDIA_TYPE;
//keeps track of how many instances of VI are being used
//don't touch
static int comInitCount = 0;
//static int comInitCount = 0;
//////////////////////////////////////// VIDEO DEVICE ///////////////////////////////////
@@ -1915,7 +1915,7 @@ videoInput::~videoInput(){
// ----------------------------------------------------------------------
bool videoInput::comInit(){
HRESULT hr = NOERROR;
/*HRESULT hr = NOERROR;
//no need for us to start com more than once
if(comInitCount == 0 ){
@@ -1935,7 +1935,7 @@ bool videoInput::comInit(){
}
}
comInitCount++;
comInitCount++;*/
return true;
}
@@ -1946,14 +1946,15 @@ bool videoInput::comInit(){
// ----------------------------------------------------------------------
bool videoInput::comUnInit(){
if(comInitCount > 0)comInitCount--; //decrease the count of instances using com
/*if(comInitCount > 0)comInitCount--; //decrease the count of instances using com
if(comInitCount == 0){
CoUninitialize(); //if there are no instances left - uninitialize com
return true;
}
return false;
return false;*/
return true;
}
@@ -2912,7 +2913,7 @@ class CvCaptureCAM_DShow : public CvCapture
{
public:
CvCaptureCAM_DShow();
virtual ~CvCaptureCAM_DShow() { close(); }
virtual ~CvCaptureCAM_DShow();
virtual bool open( int index );
virtual void close();
@@ -2944,6 +2945,13 @@ CvCaptureCAM_DShow::CvCaptureCAM_DShow()
index = -1;
frame = 0;
width = height = -1;
CoInitialize(0);
}
CvCaptureCAM_DShow::~CvCaptureCAM_DShow()
{
close();
CoUninitialize();
}
void CvCaptureCAM_DShow::close()