diff options
Diffstat (limited to 'src/plugins/directshow/camera/dscamerasession.cpp')
| -rw-r--r-- | src/plugins/directshow/camera/dscamerasession.cpp | 101 |
1 files changed, 41 insertions, 60 deletions
diff --git a/src/plugins/directshow/camera/dscamerasession.cpp b/src/plugins/directshow/camera/dscamerasession.cpp index 5ab9f67d8..27cdd84db 100644 --- a/src/plugins/directshow/camera/dscamerasession.cpp +++ b/src/plugins/directshow/camera/dscamerasession.cpp @@ -58,23 +58,6 @@ QT_BEGIN_NAMESPACE DSCameraSession::DSCameraSession(QObject *parent) : QObject(parent) - , m_graphBuilder(nullptr) - , m_filterGraph(nullptr) - , m_sourceDeviceName(QLatin1String("default")) - , m_sourceFilter(nullptr) - , m_needsHorizontalMirroring(false) - , m_previewSampleGrabber(nullptr) - , m_nullRendererFilter(nullptr) - , m_previewStarted(false) - , m_surface(nullptr) - , m_previewPixelFormat(QVideoFrame::Format_Invalid) - , m_stride(-1) - , m_readyForCapture(false) - , m_imageIdCounter(0) - , m_currentImageId(-1) - , m_captureDestinations(QCameraImageCapture::CaptureToFile) - , m_videoProbeControl(nullptr) - , m_status(QCamera::UnloadedStatus) { connect(this, SIGNAL(statusChanged(QCamera::Status)), this, SLOT(updateReadyForCapture())); @@ -284,7 +267,7 @@ void DSCameraSession::setImageProcessingParameter( ImageProcessingParameterInfo>::iterator sourceValueInfo = m_imageProcessingParametersInfos.find(resultingParameter); - if (sourceValueInfo == m_imageProcessingParametersInfos.constEnd()) + if (sourceValueInfo == m_imageProcessingParametersInfos.end()) return; LONG sourceValue = 0; @@ -331,10 +314,10 @@ void DSCameraSession::setImageProcessingParameter( return; } - IAMVideoProcAmp *pVideoProcAmp = NULL; + IAMVideoProcAmp *pVideoProcAmp = nullptr; HRESULT hr = m_graphBuilder->FindInterface( - NULL, - NULL, + nullptr, + nullptr, m_sourceFilter, IID_IAMVideoProcAmp, reinterpret_cast<void**>(&pVideoProcAmp) @@ -464,7 +447,7 @@ bool DSCameraSession::startPreview() QString errorString; HRESULT hr = S_OK; - IMediaControl* pControl = 0; + IMediaControl* pControl = nullptr; if (!configurePreviewFormat()) { errorString = tr("Failed to configure preview format"); @@ -516,7 +499,7 @@ bool DSCameraSession::stopPreview() m_previewSampleGrabber->stop(); QString errorString; - IMediaControl* pControl = 0; + IMediaControl* pControl = nullptr; HRESULT hr = m_filterGraph->QueryInterface(IID_IMediaControl, reinterpret_cast<void**>(&pControl)); if (FAILED(hr)) { @@ -702,12 +685,12 @@ bool DSCameraSession::createFilterGraph() QString errorString; HRESULT hr; - IMoniker* pMoniker = NULL; - ICreateDevEnum* pDevEnum = NULL; - IEnumMoniker* pEnum = NULL; + IMoniker* pMoniker = nullptr; + ICreateDevEnum* pDevEnum = nullptr; + IEnumMoniker* pEnum = nullptr; // Create the filter graph - hr = CoCreateInstance(CLSID_FilterGraph,NULL,CLSCTX_INPROC, + hr = CoCreateInstance(CLSID_FilterGraph,nullptr,CLSCTX_INPROC, IID_IGraphBuilder, reinterpret_cast<void**>(&m_filterGraph)); if (FAILED(hr)) { errorString = tr("Failed to create filter graph"); @@ -715,7 +698,7 @@ bool DSCameraSession::createFilterGraph() } // Create the capture graph builder - hr = CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC, + hr = CoCreateInstance(CLSID_CaptureGraphBuilder2, nullptr, CLSCTX_INPROC, IID_ICaptureGraphBuilder2, reinterpret_cast<void**>(&m_graphBuilder)); if (FAILED(hr)) { @@ -731,7 +714,7 @@ bool DSCameraSession::createFilterGraph() } // Find the Capture device - hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, + hr = CoCreateInstance(CLSID_SystemDeviceEnum, nullptr, CLSCTX_INPROC_SERVER, IID_ICreateDevEnum, reinterpret_cast<void**>(&pDevEnum)); if (SUCCEEDED(hr)) { @@ -740,13 +723,13 @@ bool DSCameraSession::createFilterGraph() pDevEnum->Release(); if (S_OK == hr) { pEnum->Reset(); - IMalloc *mallocInterface = 0; + IMalloc *mallocInterface = nullptr; CoGetMalloc(1, (LPMALLOC*)&mallocInterface); //go through and find all video capture devices - while (pEnum->Next(1, &pMoniker, NULL) == S_OK) { + while (pEnum->Next(1, &pMoniker, nullptr) == S_OK) { - BSTR strName = 0; - hr = pMoniker->GetDisplayName(NULL, NULL, &strName); + BSTR strName = nullptr; + hr = pMoniker->GetDisplayName(nullptr, nullptr, &strName); if (SUCCEEDED(hr)) { QString output = QString::fromWCharArray(strName); mallocInterface->Free(strName); @@ -762,14 +745,14 @@ bool DSCameraSession::createFilterGraph() pMoniker->Release(); } mallocInterface->Release(); - if (NULL == m_sourceFilter) + if (nullptr == m_sourceFilter) { if (m_sourceDeviceName.contains(QLatin1String("default"))) { pEnum->Reset(); // still have to loop to discard bind to storage failure case - while (pEnum->Next(1, &pMoniker, NULL) == S_OK) { - IPropertyBag *pPropBag = 0; + while (pEnum->Next(1, &pMoniker, nullptr) == S_OK) { + IPropertyBag *pPropBag = nullptr; hr = pMoniker->BindToStorage(nullptr, nullptr, IID_IPropertyBag, reinterpret_cast<void**>(&pPropBag)); @@ -780,17 +763,13 @@ bool DSCameraSession::createFilterGraph() // No need to get the description, just grab it - hr = pMoniker->BindToObject(0, 0, IID_IBaseFilter, + hr = pMoniker->BindToObject(nullptr, nullptr, IID_IBaseFilter, reinterpret_cast<void**>(&m_sourceFilter)); pPropBag->Release(); pMoniker->Release(); - if (SUCCEEDED(hr)) { + if (SUCCEEDED(hr)) break; // done, stop looping through - } - else - { - qWarning() << "Object bind failed"; - } + qWarning("Object bind failed"); } } } @@ -813,7 +792,7 @@ bool DSCameraSession::createFilterGraph() // Null renderer. Input connected to the sample grabber's output. Simply // discard the samples it receives. - hr = CoCreateInstance(cLSID_NullRenderer, NULL, CLSCTX_INPROC, + hr = CoCreateInstance(cLSID_NullRenderer, nullptr, CLSCTX_INPROC, IID_IBaseFilter, (void**)&m_nullRendererFilter); if (FAILED(hr)) { errorString = tr("Failed to create null renderer"); @@ -898,7 +877,7 @@ bool DSCameraSession::configurePreviewFormat() m_stride = DirectShowMediaType::bytesPerLine(m_previewSurfaceFormat); HRESULT hr; - IAMStreamConfig* pConfig = 0; + IAMStreamConfig* pConfig = nullptr; hr = m_graphBuilder->FindInterface(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video, m_sourceFilter, IID_IAMStreamConfig, reinterpret_cast<void**>(&pConfig)); @@ -931,10 +910,10 @@ void DSCameraSession::updateImageProcessingParametersInfos() return; } - IAMVideoProcAmp *pVideoProcAmp = NULL; + IAMVideoProcAmp *pVideoProcAmp = nullptr; const HRESULT hr = m_graphBuilder->FindInterface( - NULL, - NULL, + nullptr, + nullptr, m_sourceFilter, IID_IAMVideoProcAmp, reinterpret_cast<void**>(&pVideoProcAmp) @@ -1041,10 +1020,10 @@ void DSCameraSession::disconnectGraph() { // To avoid increasing the memory usage every time the graph is re-connected it's // important that all filters are released; also the ones added by the "Intelligent Connect". - IEnumFilters *enumFilters = NULL; + IEnumFilters *enumFilters = nullptr; if (SUCCEEDED(m_filterGraph->EnumFilters(&enumFilters))) { - IBaseFilter *filter = NULL; - while (enumFilters->Next(1, &filter, NULL) == S_OK) { + IBaseFilter *filter = nullptr; + while (enumFilters->Next(1, &filter, nullptr) == S_OK) { m_filterGraph->RemoveFilter(filter); enumFilters->Reset(); filter->Release(); @@ -1061,24 +1040,24 @@ static bool qt_frameRateRangeGreaterThan(const QCamera::FrameRateRange &r1, cons void DSCameraSession::updateSourceCapabilities() { HRESULT hr; - AM_MEDIA_TYPE *pmt = NULL; - VIDEOINFOHEADER *pvi = NULL; + AM_MEDIA_TYPE *pmt = nullptr; + VIDEOINFOHEADER *pvi = nullptr; VIDEO_STREAM_CONFIG_CAPS scc; - IAMStreamConfig* pConfig = 0; + IAMStreamConfig* pConfig = nullptr; m_supportedViewfinderSettings.clear(); m_needsHorizontalMirroring = false; m_supportedFormats.clear(); m_imageProcessingParametersInfos.clear(); - IAMVideoControl *pVideoControl = 0; + IAMVideoControl *pVideoControl = nullptr; hr = m_graphBuilder->FindInterface(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video, m_sourceFilter, IID_IAMVideoControl, reinterpret_cast<void**>(&pVideoControl)); if (FAILED(hr)) { qWarning() << "Failed to get the video control"; } else { - IPin *pPin = 0; + IPin *pPin = nullptr; if (!DirectShowUtils::getPin(m_sourceFilter, PINDIR_OUTPUT, &pPin, &hr)) { qWarning() << "Failed to get the pin for the video control"; } else { @@ -1130,15 +1109,15 @@ void DSCameraSession::updateSourceCapabilities() QList<QCamera::FrameRateRange> frameRateRanges; if (pVideoControl) { - IPin *pPin = 0; + IPin *pPin = nullptr; if (!DirectShowUtils::getPin(m_sourceFilter, PINDIR_OUTPUT, &pPin, &hr)) { qWarning() << "Failed to get the pin for the video control"; } else { long listSize = 0; - LONGLONG *frameRates = 0; + LONGLONG *frameRates = nullptr; SIZE size = { resolution.width(), resolution.height() }; - if (SUCCEEDED(pVideoControl->GetFrameRateList(pPin, iIndex, size, - &listSize, &frameRates))) { + hr = pVideoControl->GetFrameRateList(pPin, iIndex, size, &listSize, &frameRates); + if (hr == S_OK && listSize > 0 && frameRates) { for (long i = 0; i < listSize; ++i) { qreal fr = qreal(10000000) / frameRates[i]; frameRateRanges.append(QCamera::FrameRateRange(fr, fr)); @@ -1147,6 +1126,8 @@ void DSCameraSession::updateSourceCapabilities() // Make sure higher frame rates come first std::sort(frameRateRanges.begin(), frameRateRanges.end(), qt_frameRateRangeGreaterThan); } + + CoTaskMemFree(frameRates); pPin->Release(); } } |