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Merge pull request #3251 from a-wi:MSMF_camera_errors

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This commit is contained in:
Vadim Pisarevsky
2014-09-23 08:42:57 +00:00
parent 19b3aab23f 3603102c89
commit 10bbcca11e
1 changed files with 5 additions and 4 deletions
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9
modules/highgui/src/cap_msmf.cpp
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@@ -1462,7 +1462,6 @@ void ImageGrabber::stopGrabbing()
HRESULT ImageGrabber::startGrabbing(void)
{
_ComPtr<IMFMediaEvent> pEvent = NULL;
PROPVARIANT var;
PropVariantInit(&var);
HRESULT hr = ig_pSession->SetTopology(0, ig_pTopology);
@@ -1470,6 +1469,7 @@ HRESULT ImageGrabber::startGrabbing(void)
hr = ig_pSession->Start(&GUID_NULL, &var);
for(;;)
{
_ComPtr<IMFMediaEvent> pEvent = NULL;
HRESULT hrStatus = S_OK;
MediaEventType met;
if(!ig_pSession) break;
@@ -2445,11 +2445,12 @@ int videoDevice::findType(unsigned int size, unsigned int frameRate)
fmt = vd_CaptureFormats.find(size);
if( fmt != vd_CaptureFormats.end() )
FRM = fmt->second;
else if (FRM.empty())
return -1;
else
else if(!vd_CaptureFormats.empty())
FRM = vd_CaptureFormats.rbegin()->second;
if (FRM.empty())
return -1;
UINT64 frameRateMax = 0; SUBTYPEMap STMMax;
if(frameRate == 0)
{