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cap_msmf.cpp
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cap_msmf.cpp
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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html
#include "precomp.hpp"
/*
Media Foundation-based Video Capturing module is based on
videoInput library by Evgeny Pereguda:
http://www.codeproject.com/Articles/559437/Capturing-of-video-from-web-camera-on-Windows-7-an
Originally licensed under The Code Project Open License (CPOL) 1.02:
http://www.codeproject.com/info/cpol10.aspx
*/
//require Windows 8 for some of the formats defined otherwise could baseline on lower version
#if WINVER < _WIN32_WINNT_WIN8
#undef WINVER
#define WINVER _WIN32_WINNT_WIN8
#endif
#include <windows.h>
#include <guiddef.h>
#include <mfidl.h>
#include <mfapi.h>
#include <mfplay.h>
#include <mfobjects.h>
#include <tchar.h>
#include <strsafe.h>
#include <codecvt>
#include <mfreadwrite.h>
#ifdef HAVE_MSMF_DXVA
#include <d3d11.h>
#include <d3d11_4.h>
#endif
#include <new>
#include <map>
#include <vector>
#include <string>
#include <algorithm>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#ifdef _MSC_VER
#pragma warning(disable:4503)
#pragma comment(lib, "mfplat")
#pragma comment(lib, "mf")
#pragma comment(lib, "mfuuid")
#pragma comment(lib, "Strmiids")
#pragma comment(lib, "Mfreadwrite")
#pragma comment(lib, "dxgi")
#ifdef HAVE_MSMF_DXVA
#pragma comment(lib, "d3d11")
// MFCreateDXGIDeviceManager() is available since Win8 only.
// To avoid OpenCV loading failure on Win7 use dynamic detection of this symbol.
// Details: https://github.com/opencv/opencv/issues/11858
typedef HRESULT (WINAPI *FN_MFCreateDXGIDeviceManager)(UINT *resetToken, IMFDXGIDeviceManager **ppDeviceManager);
static bool pMFCreateDXGIDeviceManager_initialized = false;
static FN_MFCreateDXGIDeviceManager pMFCreateDXGIDeviceManager = NULL;
static void init_MFCreateDXGIDeviceManager()
{
HMODULE h = LoadLibraryExA("mfplat.dll", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32);
if (h)
{
pMFCreateDXGIDeviceManager = (FN_MFCreateDXGIDeviceManager)GetProcAddress(h, "MFCreateDXGIDeviceManager");
}
pMFCreateDXGIDeviceManager_initialized = true;
}
#endif
#pragma comment(lib, "Shlwapi.lib")
#endif
#include <mferror.h>
#include <comdef.h>
#include <shlwapi.h> // QISearch
struct IMFMediaType;
struct IMFActivate;
struct IMFMediaSource;
struct IMFAttributes;
#define CV_CAP_MODE_BGR CV_FOURCC_MACRO('B','G','R','3')
#define CV_CAP_MODE_RGB CV_FOURCC_MACRO('R','G','B','3')
#define CV_CAP_MODE_GRAY CV_FOURCC_MACRO('G','R','E','Y')
#define CV_CAP_MODE_YUYV CV_FOURCC_MACRO('Y', 'U', 'Y', 'V')
using namespace cv;
namespace
{
template <class T>
class ComPtr
{
public:
ComPtr()
{
}
ComPtr(T* lp)
{
p = lp;
}
ComPtr(_In_ const ComPtr<T>& lp)
{
p = lp.p;
}
virtual ~ComPtr()
{
}
T** operator&()
{
CV_Assert(p == NULL);
return p.operator&();
}
T* operator->() const
{
CV_Assert(p != NULL);
return p.operator->();
}
operator bool()
{
return p.operator!=(NULL);
}
T* Get() const
{
return p;
}
void Release()
{
if (p)
p.Release();
}
// query for U interface
template<typename U>
HRESULT As(_Out_ ComPtr<U>& lp) const
{
lp.Release();
return p->QueryInterface(__uuidof(U), reinterpret_cast<void**>((T**)&lp));
}
private:
_COM_SMARTPTR_TYPEDEF(T, __uuidof(T));
TPtr p;
};
#define _ComPtr ComPtr
template <typename T> inline T absDiff(T a, T b) { return a >= b ? a - b : b - a; }
//==================================================================================================
// Structure for collecting info about types of video which are supported by current video device
struct MediaType
{
UINT32 width;
UINT32 height;
INT32 stride; // stride is negative if image is bottom-up
UINT32 isFixedSize;
UINT32 frameRateNum;
UINT32 frameRateDenom;
UINT32 aspectRatioNum;
UINT32 aspectRatioDenom;
UINT32 sampleSize;
UINT32 interlaceMode;
GUID majorType; // video or audio
GUID subType; // fourCC
MediaType(IMFMediaType *pType = 0) :
width(0), height(0),
stride(0),
isFixedSize(true),
frameRateNum(1), frameRateDenom(1),
aspectRatioNum(1), aspectRatioDenom(1),
sampleSize(0),
interlaceMode(0),
majorType(MFMediaType_Video),
subType({ 0 })
{
if (pType)
{
MFGetAttributeSize(pType, MF_MT_FRAME_SIZE, &width, &height);
pType->GetUINT32(MF_MT_DEFAULT_STRIDE, (UINT32*)&stride); // value is stored as UINT32 but should be casted to INT3)
pType->GetUINT32(MF_MT_FIXED_SIZE_SAMPLES, &isFixedSize);
MFGetAttributeRatio(pType, MF_MT_FRAME_RATE, &frameRateNum, &frameRateDenom);
MFGetAttributeRatio(pType, MF_MT_PIXEL_ASPECT_RATIO, &aspectRatioNum, &aspectRatioDenom);
pType->GetUINT32(MF_MT_SAMPLE_SIZE, &sampleSize);
pType->GetUINT32(MF_MT_INTERLACE_MODE, &interlaceMode);
pType->GetGUID(MF_MT_MAJOR_TYPE, &majorType);
pType->GetGUID(MF_MT_SUBTYPE, &subType);
}
}
static MediaType createDefault()
{
MediaType res;
res.width = 640;
res.height = 480;
res.setFramerate(30.0);
return res;
}
inline bool isEmpty() const
{
return width == 0 && height == 0;
}
_ComPtr<IMFMediaType> createMediaType() const
{
_ComPtr<IMFMediaType> res;
MFCreateMediaType(&res);
if (width != 0 || height != 0)
MFSetAttributeSize(res.Get(), MF_MT_FRAME_SIZE, width, height);
if (stride != 0)
res->SetUINT32(MF_MT_DEFAULT_STRIDE, stride);
res->SetUINT32(MF_MT_FIXED_SIZE_SAMPLES, isFixedSize);
if (frameRateNum != 0 || frameRateDenom != 0)
MFSetAttributeRatio(res.Get(), MF_MT_FRAME_RATE, frameRateNum, frameRateDenom);
if (aspectRatioNum != 0 || aspectRatioDenom != 0)
MFSetAttributeRatio(res.Get(), MF_MT_PIXEL_ASPECT_RATIO, aspectRatioNum, aspectRatioDenom);
if (sampleSize > 0)
res->SetUINT32(MF_MT_SAMPLE_SIZE, sampleSize);
res->SetUINT32(MF_MT_INTERLACE_MODE, interlaceMode);
if (majorType != GUID())
res->SetGUID(MF_MT_MAJOR_TYPE, majorType);
if (subType != GUID())
res->SetGUID(MF_MT_SUBTYPE, subType);
return res;
}
void setFramerate(double fps)
{
frameRateNum = (UINT32)cvRound(fps * 1000.0);
frameRateDenom = 1000;
}
double getFramerate() const
{
return frameRateDenom != 0 ? ((double)frameRateNum) / ((double)frameRateDenom) : 0;
}
LONGLONG getFrameStep() const
{
const double fps = getFramerate();
return (LONGLONG)(fps > 0 ? 1e7 / fps : 0);
}
inline unsigned long resolutionDiff(const MediaType& other) const
{
const unsigned long wdiff = absDiff(width, other.width);
const unsigned long hdiff = absDiff(height, other.height);
return wdiff + hdiff;
}
// check if 'this' is better than 'other' comparing to reference
bool isBetterThan(const MediaType& other, const MediaType& ref) const
{
const unsigned long thisDiff = resolutionDiff(ref);
const unsigned long otherDiff = other.resolutionDiff(ref);
if (thisDiff < otherDiff)
return true;
if (thisDiff == otherDiff)
{
if (width > other.width)
return true;
if (width == other.width && height > other.height)
return true;
if (width == other.width && height == other.height)
{
const double thisRateDiff = absDiff(getFramerate(), ref.getFramerate());
const double otherRateDiff = absDiff(other.getFramerate(), ref.getFramerate());
if (thisRateDiff < otherRateDiff)
return true;
}
}
return false;
}
};
void printFormat(std::ostream& out, const GUID& fmt)
{
#define PRNT(FMT) else if (fmt == FMT) out << #FMT;
if (fmt == MFVideoFormat_Base) out << "Base";
PRNT(MFVideoFormat_RGB32)
PRNT(MFVideoFormat_ARGB32)
PRNT(MFVideoFormat_RGB24)
PRNT(MFVideoFormat_RGB555)
PRNT(MFVideoFormat_RGB565)
PRNT(MFVideoFormat_RGB8)
else
{
char fourcc[5] = { 0 };
memcpy(fourcc, &fmt.Data1, 4);
out << fourcc;
}
#undef PRNT
}
std::ostream& operator<<(std::ostream& out, const MediaType& mt)
{
out << "(" << mt.width << "x" << mt.height << " @ " << mt.getFramerate() << ") ";
printFormat(out, mt.subType);
return out;
}
//==================================================================================================
// Class for creating of Media Foundation context
class Media_Foundation
{
public:
~Media_Foundation(void) { /*CV_Assert(SUCCEEDED(MFShutdown()));*/ CoUninitialize(); }
static Media_Foundation& getInstance()
{
static Media_Foundation instance;
return instance;
}
private:
Media_Foundation(void) { CoInitialize(0); CV_Assert(SUCCEEDED(MFStartup(MF_VERSION))); }
};
//==================================================================================================
class SourceReaderCB : public IMFSourceReaderCallback
{
public:
SourceReaderCB() :
m_nRefCount(0), m_hEvent(CreateEvent(NULL, FALSE, FALSE, NULL)), m_bEOS(FALSE), m_hrStatus(S_OK), m_reader(NULL), m_dwStreamIndex(0), m_lastSampleTimestamp(0)
{
}
// IUnknown methods
STDMETHODIMP QueryInterface(REFIID iid, void** ppv) CV_OVERRIDE
{
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4838)
#endif
static const QITAB qit[] =
{
QITABENT(SourceReaderCB, IMFSourceReaderCallback),
{ 0 },
};
#ifdef _MSC_VER
#pragma warning(pop)
#endif
return QISearch(this, qit, iid, ppv);
}
STDMETHODIMP_(ULONG) AddRef() CV_OVERRIDE
{
return InterlockedIncrement(&m_nRefCount);
}
STDMETHODIMP_(ULONG) Release() CV_OVERRIDE
{
ULONG uCount = InterlockedDecrement(&m_nRefCount);
if (uCount == 0)
{
delete this;
}
return uCount;
}
STDMETHODIMP OnReadSample(HRESULT hrStatus, DWORD dwStreamIndex, DWORD dwStreamFlags, LONGLONG llTimestamp, IMFSample *pSample) CV_OVERRIDE
{
HRESULT hr = 0;
cv::AutoLock lock(m_mutex);
if (SUCCEEDED(hrStatus))
{
if (pSample)
{
CV_LOG_DEBUG(NULL, "videoio(MSMF): got frame at " << llTimestamp);
if (m_lastSample.Get())
{
CV_LOG_DEBUG(NULL, "videoio(MSMF): drop frame (not processed)");
}
m_lastSampleTimestamp = llTimestamp;
m_lastSample = pSample;
}
}
else
{
CV_LOG_WARNING(NULL, "videoio(MSMF): OnReadSample() is called with error status: " << hrStatus);
}
if (MF_SOURCE_READERF_ENDOFSTREAM & dwStreamFlags)
{
// Reached the end of the stream.
m_bEOS = true;
}
m_hrStatus = hrStatus;
if (FAILED(hr = m_reader->ReadSample(dwStreamIndex, 0, NULL, NULL, NULL, NULL)))
{
CV_LOG_WARNING(NULL, "videoio(MSMF): async ReadSample() call is failed with error status: " << hr);
m_bEOS = true;
}
if (pSample || m_bEOS)
{
SetEvent(m_hEvent);
}
return S_OK;
}
STDMETHODIMP OnEvent(DWORD, IMFMediaEvent *) CV_OVERRIDE
{
return S_OK;
}
STDMETHODIMP OnFlush(DWORD) CV_OVERRIDE
{
return S_OK;
}
HRESULT Wait(DWORD dwMilliseconds, _ComPtr<IMFSample>& videoSample, BOOL& pbEOS)
{
pbEOS = FALSE;
DWORD dwResult = WaitForSingleObject(m_hEvent, dwMilliseconds);
if (dwResult == WAIT_TIMEOUT)
{
return E_PENDING;
}
else if (dwResult != WAIT_OBJECT_0)
{
return HRESULT_FROM_WIN32(GetLastError());
}
pbEOS = m_bEOS;
if (!pbEOS)
{
cv::AutoLock lock(m_mutex);
videoSample = m_lastSample;
CV_Assert(videoSample);
m_lastSample.Release();
ResetEvent(m_hEvent); // event is auto-reset, but we need this forced reset due time gap between wait() and mutex hold.
}
return m_hrStatus;
}
private:
// Destructor is private. Caller should call Release.
virtual ~SourceReaderCB()
{
CV_LOG_WARNING(NULL, "terminating async callback");
}
public:
long m_nRefCount; // Reference count.
cv::Mutex m_mutex;
HANDLE m_hEvent;
BOOL m_bEOS;
HRESULT m_hrStatus;
IMFSourceReader *m_reader;
DWORD m_dwStreamIndex;
LONGLONG m_lastSampleTimestamp;
_ComPtr<IMFSample> m_lastSample;
};
//==================================================================================================
// Enumerate and store supported formats and finds format which is most similar to the one requested
class FormatStorage
{
public:
struct MediaID
{
DWORD stream;
DWORD media;
MediaID() : stream(0), media(0) {}
void nextStream()
{
stream++;
media = 0;
}
void nextMedia()
{
media++;
}
bool operator<(const MediaID& other) const
{
return (stream < other.stream) || (stream == other.stream && media < other.media);
}
};
void read(IMFSourceReader* source)
{
HRESULT hr = S_OK;
MediaID cur;
while (SUCCEEDED(hr))
{
_ComPtr<IMFMediaType> raw_type;
hr = source->GetNativeMediaType(cur.stream, cur.media, &raw_type);
if (hr == MF_E_NO_MORE_TYPES)
{
hr = S_OK;
cur.nextStream();
}
else if (SUCCEEDED(hr))
{
formats[cur] = MediaType(raw_type.Get());
cur.nextMedia();
}
}
}
std::pair<MediaID, MediaType> findBestVideoFormat(const MediaType& newType)
{
std::pair<MediaID, MediaType> best;
std::map<MediaID, MediaType>::const_iterator i = formats.begin();
for (; i != formats.end(); ++i)
{
if (i->second.majorType != MFMediaType_Video)
continue;
if (newType.isEmpty()) // file input - choose first returned media type
{
best = *i;
break;
}
if (best.second.isEmpty() || i->second.isBetterThan(best.second, newType))
{
best = *i;
}
}
return best;
}
private:
std::map<MediaID, MediaType> formats;
};
//==================================================================================================
// Enumerates devices and activates one of them
class DeviceList
{
public:
DeviceList() : devices(NULL), count(0) {}
~DeviceList()
{
if (devices)
{
for (UINT32 i = 0; i < count; ++i)
if (devices[i])
devices[i]->Release();
CoTaskMemFree(devices);
}
}
UINT32 read(IID sourceType = MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID)
{
_ComPtr<IMFAttributes> attr;
if (FAILED(MFCreateAttributes(&attr, 1)) ||
FAILED(attr->SetGUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE, sourceType)))
{
CV_Error(CV_StsError, "Failed to create attributes");
}
if (FAILED(MFEnumDeviceSources(attr.Get(), &devices, &count)))
{
CV_LOG_DEBUG(NULL, "Failed to enumerate MSMF devices");
return 0;
}
return count;
}
_ComPtr<IMFMediaSource> activateSource(UINT32 index)
{
_ComPtr<IMFMediaSource> result;
if (count == 0 || index >= count || FAILED(devices[index]->ActivateObject(__uuidof(IMFMediaSource), (void**)&result)))
{
CV_LOG_DEBUG(NULL, "Failed to activate media source (device " << index << ")");
}
return result;
}
private:
IMFActivate** devices;
UINT32 count;
};
} // namespace::
//==================================================================================================
/******* Capturing video from camera or file via Microsoft Media Foundation **********/
class CvCapture_MSMF : public cv::IVideoCapture
{
public:
typedef enum {
MODE_SW = 0,
MODE_HW = 1
} MSMFCapture_Mode;
CvCapture_MSMF();
virtual ~CvCapture_MSMF();
bool configureHW(const cv::VideoCaptureParameters& params);
virtual bool open(int, const cv::VideoCaptureParameters* params);
virtual bool open(const cv::String&, const cv::VideoCaptureParameters* params);
virtual void close();
virtual double getProperty(int) const CV_OVERRIDE;
virtual bool setProperty(int, double) CV_OVERRIDE;
virtual bool grabFrame() CV_OVERRIDE;
virtual bool retrieveFrame(int, cv::OutputArray) CV_OVERRIDE;
virtual bool isOpened() const CV_OVERRIDE { return isOpen; }
virtual int getCaptureDomain() CV_OVERRIDE { return CV_CAP_MSMF; }
protected:
bool configureOutput(MediaType newType, cv::uint32_t outFormat);
bool setTime(double time, bool rough);
bool configureHW(bool enable);
template <typename CtrlT>
bool readComplexPropery(long prop, long& val) const;
template <typename CtrlT>
bool writeComplexProperty(long prop, double val, long flags);
_ComPtr<IMFAttributes> getDefaultSourceConfig(UINT32 num = 10);
bool initStream(DWORD streamID, const MediaType& mt);
bool openFinalize_(const VideoCaptureParameters* params);
Media_Foundation& MF;
cv::String filename;
int camid;
MSMFCapture_Mode captureMode;
VideoAccelerationType va_type;
int hwDeviceIndex;
#ifdef HAVE_MSMF_DXVA
_ComPtr<ID3D11Device> D3DDev;
_ComPtr<IMFDXGIDeviceManager> D3DMgr;
#endif
_ComPtr<IMFSourceReader> videoFileSource;
_ComPtr<IMFSample> videoSample;
_ComPtr<IMFSourceReaderCallback> readCallback; // non-NULL for "live" streams (camera capture)
DWORD dwStreamIndex;
MediaType nativeFormat;
MediaType captureFormat;
int outputFormat;
bool convertFormat;
MFTIME duration;
LONGLONG frameStep;
LONGLONG sampleTime;
bool isOpen;
};
CvCapture_MSMF::CvCapture_MSMF():
MF(Media_Foundation::getInstance()),
filename(""),
camid(-1),
captureMode(MODE_SW),
va_type(VIDEO_ACCELERATION_NONE),
hwDeviceIndex(-1),
#ifdef HAVE_MSMF_DXVA
D3DDev(NULL),
D3DMgr(NULL),
#endif
videoFileSource(NULL),
videoSample(NULL),
readCallback(NULL),
dwStreamIndex(0),
outputFormat(CV_CAP_MODE_BGR),
convertFormat(true),
duration(0),
frameStep(0),
sampleTime(0),
isOpen(false)
{
}
CvCapture_MSMF::~CvCapture_MSMF()
{
close();
configureHW(false);
}
void CvCapture_MSMF::close()
{
if (isOpen)
{
isOpen = false;
videoSample.Release();
videoFileSource.Release();
camid = -1;
filename.clear();
}
readCallback.Release();
}
bool CvCapture_MSMF::initStream(DWORD streamID, const MediaType& mt)
{
CV_LOG_DEBUG(NULL, "Init stream " << streamID << " with MediaType " << mt);
_ComPtr<IMFMediaType> mediaTypeOut = mt.createMediaType();
if (FAILED(videoFileSource->SetStreamSelection((DWORD)MF_SOURCE_READER_ALL_STREAMS, false)))
{
CV_LOG_WARNING(NULL, "Failed to reset streams");
return false;
}
if (FAILED(videoFileSource->SetStreamSelection(streamID, true)))
{
CV_LOG_WARNING(NULL, "Failed to select stream " << streamID);
return false;
}
HRESULT hr = videoFileSource->SetCurrentMediaType(streamID, NULL, mediaTypeOut.Get());
if (hr == MF_E_TOPO_CODEC_NOT_FOUND)
{
CV_LOG_WARNING(NULL, "Failed to set mediaType (stream " << streamID << ", " << mt << "(codec not found)");
return false;
}
else if (hr == MF_E_INVALIDMEDIATYPE)
{
CV_LOG_WARNING(NULL, "Failed to set mediaType (stream " << streamID << ", " << mt << "(unsupported media type)");
return false;
}
else if (FAILED(hr))
{
CV_LOG_WARNING(NULL, "Failed to set mediaType (stream " << streamID << ", " << mt << "(HRESULT " << hr << ")");
return false;
}
captureFormat = mt;
return true;
}
_ComPtr<IMFAttributes> CvCapture_MSMF::getDefaultSourceConfig(UINT32 num)
{
CV_Assert(num > 0);
_ComPtr<IMFAttributes> res;
if (FAILED(MFCreateAttributes(&res, num)) ||
FAILED(res->SetUINT32(MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS, true)) ||
FAILED(res->SetUINT32(MF_SOURCE_READER_DISABLE_DXVA, false)) ||
FAILED(res->SetUINT32(MF_SOURCE_READER_ENABLE_VIDEO_PROCESSING, false)) ||
FAILED(res->SetUINT32(MF_SOURCE_READER_ENABLE_ADVANCED_VIDEO_PROCESSING, true))
)
{
CV_Error(CV_StsError, "Failed to create attributes");
}
#ifdef HAVE_MSMF_DXVA
if (D3DMgr)
{
if (FAILED(res->SetUnknown(MF_SOURCE_READER_D3D_MANAGER, D3DMgr.Get())))
{
CV_Error(CV_StsError, "Failed to create attributes");
}
}
#endif
return res;
}
bool CvCapture_MSMF::configureHW(bool enable)
{
#ifdef HAVE_MSMF_DXVA
if ((enable && D3DMgr && D3DDev) || (!enable && !D3DMgr && !D3DDev))
return true;
if (!pMFCreateDXGIDeviceManager_initialized)
init_MFCreateDXGIDeviceManager();
if (enable && !pMFCreateDXGIDeviceManager)
return false;
bool reopen = isOpen;
int prevcam = camid;
cv::String prevfile = filename;
close();
if (enable)
{
_ComPtr<IDXGIAdapter> pAdapter;
if (hwDeviceIndex >= 0) {
_ComPtr<IDXGIFactory2> pDXGIFactory;
if (FAILED(CreateDXGIFactory(__uuidof(IDXGIFactory2), (void**)& pDXGIFactory)) ||
FAILED(pDXGIFactory->EnumAdapters(hwDeviceIndex, &pAdapter))) {
return false;
}
}
D3D_FEATURE_LEVEL levels[] = { D3D_FEATURE_LEVEL_11_1, D3D_FEATURE_LEVEL_11_0,
D3D_FEATURE_LEVEL_10_1, D3D_FEATURE_LEVEL_10_0,
D3D_FEATURE_LEVEL_9_3, D3D_FEATURE_LEVEL_9_2, D3D_FEATURE_LEVEL_9_1 };
D3D_DRIVER_TYPE driverType = pAdapter ? D3D_DRIVER_TYPE_UNKNOWN : D3D_DRIVER_TYPE_HARDWARE;
if (SUCCEEDED(D3D11CreateDevice(pAdapter.Get(), driverType, NULL, D3D11_CREATE_DEVICE_BGRA_SUPPORT | D3D11_CREATE_DEVICE_VIDEO_SUPPORT,
levels, sizeof(levels) / sizeof(*levels), D3D11_SDK_VERSION, &D3DDev, NULL, NULL)))
{
// NOTE: Getting ready for multi-threaded operation
_ComPtr<ID3D11Multithread> D3DDevMT;
UINT mgrRToken;
if (SUCCEEDED(D3DDev->QueryInterface(IID_PPV_ARGS(&D3DDevMT))))
{
D3DDevMT->SetMultithreadProtected(TRUE);
D3DDevMT.Release();
if (SUCCEEDED(pMFCreateDXGIDeviceManager(&mgrRToken, &D3DMgr)))
{
if (SUCCEEDED(D3DMgr->ResetDevice(D3DDev.Get(), mgrRToken)))
{
captureMode = MODE_HW;
if (hwDeviceIndex < 0)
hwDeviceIndex = 0;
// Log adapter description
_ComPtr<IDXGIDevice> dxgiDevice;
if (SUCCEEDED(D3DDev->QueryInterface(__uuidof(IDXGIDevice), reinterpret_cast<void**>(&dxgiDevice)))) {
_ComPtr<IDXGIAdapter> adapter;
if (SUCCEEDED(dxgiDevice->GetAdapter(&adapter))) {
DXGI_ADAPTER_DESC desc;
if (SUCCEEDED(adapter->GetDesc(&desc))) {
std::wstring name(desc.Description);
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> conv;
CV_LOG_INFO(NULL, "MSMF: Using D3D11 video acceleration on GPU device: " << conv.to_bytes(name));
}
}
}
// Reopen if needed
return reopen ? (prevcam >= 0 ? open(prevcam, NULL) : open(prevfile.c_str(), NULL)) : true;
}
D3DMgr.Release();
}
}
D3DDev.Release();
}
return false;
}
else
{
if (D3DMgr)
D3DMgr.Release();
if (D3DDev)
D3DDev.Release();
captureMode = MODE_SW;
return reopen ? (prevcam >= 0 ? open(prevcam, NULL) : open(prevfile.c_str(), NULL)) : true;
}
#else
return !enable;
#endif
}
bool CvCapture_MSMF::configureHW(const VideoCaptureParameters& params)
{
va_type = params.get<VideoAccelerationType>(CAP_PROP_HW_ACCELERATION, VIDEO_ACCELERATION_ANY);
hwDeviceIndex = params.get<int>(CAP_PROP_HW_DEVICE, -1);
#ifndef HAVE_MSMF_DXVA
if (va_type != VIDEO_ACCELERATION_NONE && va_type != VIDEO_ACCELERATION_ANY)
{
CV_LOG_INFO(NULL, "VIDEOIO/MSMF: MSMF backend is build without DXVA acceleration support. Can't handle CAP_PROP_HW_ACCELERATION parameter: " << va_type);
}
#endif
return configureHW(va_type == VIDEO_ACCELERATION_D3D11 || va_type == VIDEO_ACCELERATION_ANY);
}
bool CvCapture_MSMF::configureOutput(MediaType newType, cv::uint32_t outFormat)
{
FormatStorage formats;
formats.read(videoFileSource.Get());
std::pair<FormatStorage::MediaID, MediaType> bestMatch = formats.findBestVideoFormat(newType);
if (bestMatch.second.isEmpty())
{
CV_LOG_DEBUG(NULL, "Can not find video stream with requested parameters");
return false;
}
dwStreamIndex = bestMatch.first.stream;
nativeFormat = bestMatch.second;
MediaType newFormat = nativeFormat;
if (convertFormat)
{
switch (outFormat)
{
case CV_CAP_MODE_BGR:
case CV_CAP_MODE_RGB:
newFormat.subType = captureMode == MODE_HW ? MFVideoFormat_RGB32 : MFVideoFormat_RGB24;
newFormat.stride = (captureMode == MODE_HW ? 4 : 3) * newFormat.width;
newFormat.sampleSize = newFormat.stride * newFormat.height;
break;
case CV_CAP_MODE_GRAY:
newFormat.subType = MFVideoFormat_YUY2;
newFormat.stride = newFormat.width;
newFormat.sampleSize = newFormat.stride * newFormat.height * 3 / 2;
break;
case CV_CAP_MODE_YUYV:
newFormat.subType = MFVideoFormat_YUY2;
newFormat.stride = 2 * newFormat.width;
newFormat.sampleSize = newFormat.stride * newFormat.height;
break;
default:
return false;
}
newFormat.interlaceMode = MFVideoInterlace_Progressive;
newFormat.isFixedSize = true;
if (nativeFormat.subType == MFVideoFormat_MP43) //Unable to estimate FPS for MP43
newFormat.frameRateNum = 0;
}
// we select native format first and then our requested format (related issue #12822)
if (!newType.isEmpty()) // camera input
initStream(dwStreamIndex, nativeFormat);
return initStream(dwStreamIndex, newFormat);
}
bool CvCapture_MSMF::open(int index, const cv::VideoCaptureParameters* params)
{
close();
if (index < 0)
return false;
if (params)
{
configureHW(*params);
}
DeviceList devices;
UINT32 count = devices.read();
if (count == 0 || static_cast<UINT32>(index) > count)
{
CV_LOG_DEBUG(NULL, "Device " << index << " not found (total " << count << " devices)");
return false;
}
_ComPtr<IMFAttributes> attr = getDefaultSourceConfig();
_ComPtr<IMFSourceReaderCallback> cb = new SourceReaderCB();
attr->SetUnknown(MF_SOURCE_READER_ASYNC_CALLBACK, cb.Get());
_ComPtr<IMFMediaSource> src = devices.activateSource(index);
if (!src.Get() || FAILED(MFCreateSourceReaderFromMediaSource(src.Get(), attr.Get(), &videoFileSource)))
{
CV_LOG_DEBUG(NULL, "Failed to create source reader");
return false;
}
isOpen = true;
camid = index;
readCallback = cb;
duration = 0;
if (configureOutput(MediaType::createDefault(), outputFormat))
{
frameStep = captureFormat.getFrameStep();
}
if (isOpen && !openFinalize_(params))
{
close();
return false;
}
return isOpen;
}
bool CvCapture_MSMF::open(const cv::String& _filename, const cv::VideoCaptureParameters* params)
{
close();
if (_filename.empty())
return false;
if (params)
{
configureHW(*params);
}
// Set source reader parameters
_ComPtr<IMFAttributes> attr = getDefaultSourceConfig();
cv::AutoBuffer<wchar_t> unicodeFileName(_filename.length() + 1);
MultiByteToWideChar(CP_ACP, 0, _filename.c_str(), -1, unicodeFileName.data(), (int)_filename.length() + 1);
if (SUCCEEDED(MFCreateSourceReaderFromURL(unicodeFileName.data(), attr.Get(), &videoFileSource)))
{
isOpen = true;
sampleTime = 0;
if (configureOutput(MediaType(), outputFormat))
{
frameStep = captureFormat.getFrameStep();
filename = _filename;
PROPVARIANT var;
HRESULT hr;
if (SUCCEEDED(hr = videoFileSource->GetPresentationAttribute((DWORD)MF_SOURCE_READER_MEDIASOURCE, MF_PD_DURATION, &var)) &&
var.vt == VT_UI8)
{
duration = var.uhVal.QuadPart;
PropVariantClear(&var);
}
else
duration = 0;
}
}
if (isOpen && !openFinalize_(params))
{
close();
return false;
}
return isOpen;
}
bool CvCapture_MSMF::openFinalize_(const VideoCaptureParameters* params)
{
if (params)
{
std::vector<int> unused_params = params->getUnused();
for (int key : unused_params)
{
if (!setProperty(key, params->get<double>(key)))
{
CV_LOG_ERROR(NULL, "VIDEOIO/MSMF: can't set property " << key);
return false;
}
}
}
VideoAccelerationType actual_va_type = (captureMode == MODE_HW) ? VIDEO_ACCELERATION_D3D11 : VIDEO_ACCELERATION_NONE;
if (va_type != VIDEO_ACCELERATION_NONE && va_type != VIDEO_ACCELERATION_ANY)
{
if (va_type != actual_va_type)
{
CV_LOG_ERROR(NULL, "VIDEOIO/MSMF: Can't select requested video acceleration through CAP_PROP_HW_ACCELERATION: "
<< va_type << " (actual is " << actual_va_type << "). Bailout");
return false;
}
}
else
{
va_type = actual_va_type;
}
return true;
}
bool CvCapture_MSMF::grabFrame()
{