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deepin-ocr/3rdparty/opencv-4.5.4/modules/videoio/src/cap_msmf.cpp
wangzhengyang 718c41634f feat: 切换后端至PaddleOCR-NCNN，切换工程为CMake 
1.项目后端整体迁移至PaddleOCR-NCNN算法，已通过基本的兼容性测试
2.工程改为使用CMake组织，后续为了更好地兼容第三方库，不再提供QMake工程
3.重整权利声明文件，重整代码工程，确保最小化侵权风险

Log: 切换后端至PaddleOCR-NCNN，切换工程为CMake
Change-Id: I4d5d2c5d37505a4a24b389b1a4c5d12f17bfa38c
2022-05-10 10:22:11 +08:00

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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);
const bool OPENCV_VIDEOIO_MSMF_ENABLE_HW_TRANSFORMS = utils::getConfigurationParameterBool("OPENCV_VIDEOIO_MSMF_ENABLE_HW_TRANSFORMS", true);
_ComPtr<IMFAttributes> res;
if (FAILED(MFCreateAttributes(&res, num)) ||
FAILED(res->SetUINT32(MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS, OPENCV_VIDEOIO_MSMF_ENABLE_HW_TRANSFORMS)) ||
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()
{
CV_TRACE_FUNCTION();
if (readCallback) // async "live" capture mode
{
HRESULT hr = 0;
SourceReaderCB* reader = ((SourceReaderCB*)readCallback.Get());
if (!reader->m_reader)
{
// Initiate capturing with async callback
reader->m_reader = videoFileSource.Get();
reader->m_dwStreamIndex = dwStreamIndex;
if (FAILED(hr = videoFileSource->ReadSample(dwStreamIndex, 0, NULL, NULL, NULL, NULL)))
{
CV_LOG_ERROR(NULL, "videoio(MSMF): can't grab frame - initial async ReadSample() call failed: " << hr);
reader->m_reader = NULL;
return false;
}
}
BOOL bEOS = false;
if (FAILED(hr = reader->Wait(10000, videoSample, bEOS))) // 10 sec
{
CV_LOG_WARNING(NULL, "videoio(MSMF): can't grab frame. Error: " << hr);
return false;
}
if (bEOS)
{
CV_LOG_WARNING(NULL, "videoio(MSMF): EOS signal. Capture stream is lost");
return false;
}
sampleTime = reader->m_lastSampleTimestamp;
return true;
}
else if (isOpen)
{
DWORD streamIndex, flags;
videoSample.Release();
HRESULT hr;
for(;;)
{
CV_TRACE_REGION("ReadSample");
if (!SUCCEEDED(hr = videoFileSource->ReadSample(
dwStreamIndex, // Stream index.
0, // Flags.
&streamIndex, // Receives the actual stream index.
&flags, // Receives status flags.
&sampleTime, // Receives the time stamp.
&videoSample // Receives the sample or NULL.
)))
break;
if (streamIndex != dwStreamIndex)
break;
if (flags & (MF_SOURCE_READERF_ERROR | MF_SOURCE_READERF_ALLEFFECTSREMOVED | MF_SOURCE_READERF_ENDOFSTREAM))
break;
if (videoSample)
break;
if (flags & MF_SOURCE_READERF_STREAMTICK)
{
CV_LOG_DEBUG(NULL, "videoio(MSMF): Stream tick detected. Retrying to grab the frame");
}
}
if (SUCCEEDED(hr))
{
if (streamIndex != dwStreamIndex)
{
CV_LOG_DEBUG(NULL, "videoio(MSMF): Wrong stream read. Abort capturing");
close();
}
else if (flags & MF_SOURCE_READERF_ERROR)
{
CV_LOG_DEBUG(NULL, "videoio(MSMF): Stream reading error. Abort capturing");
close();
}
else if (flags & MF_SOURCE_READERF_ALLEFFECTSREMOVED)
{
CV_LOG_DEBUG(NULL, "videoio(MSMF): Stream decoding error. Abort capturing");
close();
}
else if (flags & MF_SOURCE_READERF_ENDOFSTREAM)
{
sampleTime += frameStep;
CV_LOG_DEBUG(NULL, "videoio(MSMF): End of stream detected");
}
else
{
sampleTime += frameStep;
if (flags & MF_SOURCE_READERF_NEWSTREAM)
{
CV_LOG_DEBUG(NULL, "videoio(MSMF): New stream detected");
}
if (flags & MF_SOURCE_READERF_NATIVEMEDIATYPECHANGED)
{
CV_LOG_DEBUG(NULL, "videoio(MSMF): Stream native media type changed");
}
if (flags & MF_SOURCE_READERF_CURRENTMEDIATYPECHANGED)
{
CV_LOG_DEBUG(NULL, "videoio(MSMF): Stream current media type changed");
}
return true;
}
}
}
return false;
}
bool CvCapture_MSMF::retrieveFrame(int, cv::OutputArray frame)
{
CV_TRACE_FUNCTION();
do
{
if (!videoSample)
break;
_ComPtr<IMFMediaBuffer> buf = NULL;
CV_TRACE_REGION("get_contiguous_buffer");
if (!SUCCEEDED(videoSample->ConvertToContiguousBuffer(&buf)))
{
CV_TRACE_REGION("get_buffer");
DWORD bcnt = 0;
if (!SUCCEEDED(videoSample->GetBufferCount(&bcnt)))
break;
if (bcnt == 0)
break;
if (!SUCCEEDED(videoSample->GetBufferByIndex(0, &buf)))
break;
}
bool lock2d = false;
BYTE* ptr = NULL;
LONG pitch = 0;
DWORD maxsize = 0, cursize = 0;
// "For 2-D buffers, the Lock2D method is more efficient than the Lock method"
// see IMFMediaBuffer::Lock method documentation: https://msdn.microsoft.com/en-us/library/windows/desktop/bb970366(v=vs.85).aspx
_ComPtr<IMF2DBuffer> buffer2d;
if (convertFormat)
{
if (SUCCEEDED(buf.As<IMF2DBuffer>(buffer2d)))
{
CV_TRACE_REGION_NEXT("lock2d");
if (SUCCEEDED(buffer2d->Lock2D(&ptr, &pitch)))
{
lock2d = true;
}
}
}
if (ptr == NULL)
{
CV_Assert(lock2d == false);
CV_TRACE_REGION_NEXT("lock");
if (!SUCCEEDED(buf->Lock(&ptr, &maxsize, &cursize)))
{
break;
}
}
if (!ptr)
break;
if (convertFormat)
{
if (lock2d || (unsigned int)cursize == captureFormat.sampleSize)
{
switch (outputFormat)
{
case CV_CAP_MODE_YUYV:
cv::Mat(captureFormat.height, captureFormat.width, CV_8UC2, ptr, pitch).copyTo(frame);
break;
case CV_CAP_MODE_BGR:
if (captureMode == MODE_HW)
cv::cvtColor(cv::Mat(captureFormat.height, captureFormat.width, CV_8UC4, ptr, pitch), frame, cv::COLOR_BGRA2BGR);
else
cv::Mat(captureFormat.height, captureFormat.width, CV_8UC3, ptr, pitch).copyTo(frame);
break;
case CV_CAP_MODE_RGB:
if (captureMode == MODE_HW)
cv::cvtColor(cv::Mat(captureFormat.height, captureFormat.width, CV_8UC4, ptr, pitch), frame, cv::COLOR_BGRA2BGR);
else
cv::cvtColor(cv::Mat(captureFormat.height, captureFormat.width, CV_8UC3, ptr, pitch), frame, cv::COLOR_BGR2RGB);
break;
case CV_CAP_MODE_GRAY:
cv::Mat(captureFormat.height, captureFormat.width, CV_8UC1, ptr, pitch).copyTo(frame);
break;
default:
frame.release();
break;
}
}
else
frame.release();
}
else
{
cv::Mat(1, cursize, CV_8UC1, ptr, pitch).copyTo(frame);
}
CV_TRACE_REGION_NEXT("unlock");
if (lock2d)
buffer2d->Unlock2D();
else
buf->Unlock();
return !frame.empty();
} while (0);
frame.release();
return false;
}
bool CvCapture_MSMF::setTime(double time, bool rough)
{
PROPVARIANT var;
if (SUCCEEDED(videoFileSource->GetPresentationAttribute((DWORD)MF_SOURCE_READER_MEDIASOURCE, MF_SOURCE_READER_MEDIASOURCE_CHARACTERISTICS, &var)) &&
var.vt == VT_UI4 && var.ulVal & MFMEDIASOURCE_CAN_SEEK)
{
videoSample.Release();
bool useGrabbing = time > 0 && !rough && !(var.ulVal & MFMEDIASOURCE_HAS_SLOW_SEEK);
PropVariantClear(&var);
sampleTime = (useGrabbing && time >= frameStep) ? (LONGLONG)floor(time + 0.5) - frameStep : (LONGLONG)floor(time + 0.5);
var.vt = VT_I8;
var.hVal.QuadPart = sampleTime;
bool resOK = SUCCEEDED(videoFileSource->SetCurrentPosition(GUID_NULL, var));
PropVariantClear(&var);
if (resOK && useGrabbing)
{
LONGLONG timeborder = (LONGLONG)floor(time + 0.5) - frameStep / 2;
do { resOK = grabFrame(); videoSample.Release(); } while (resOK && sampleTime < timeborder);
}
return resOK;
}
return false;
}
template <typename CtrlT>
bool CvCapture_MSMF::readComplexPropery(long prop, long & val) const
{
_ComPtr<CtrlT> ctrl;
if (FAILED(videoFileSource->GetServiceForStream((DWORD)MF_SOURCE_READER_MEDIASOURCE, GUID_NULL, IID_PPV_ARGS(&ctrl))))
{
CV_LOG_DEBUG(NULL, "Failed to get service for stream");
return false;
}
long paramVal, paramFlag;
if (FAILED(ctrl->Get(prop, &paramVal, &paramFlag)))
{
CV_LOG_DEBUG(NULL, "Failed to get property " << prop);
// we continue
}
// fallback - get default value
long minVal, maxVal, stepVal;
if (FAILED(ctrl->GetRange(prop, &minVal, &maxVal, &stepVal, &paramVal, &paramFlag)))
{
CV_LOG_DEBUG(NULL, "Failed to get default value for property " << prop);
return false;
}
val = paramVal;
return true;
}
double CvCapture_MSMF::getProperty( int property_id ) const
{
long cVal = 0;
if (isOpen)
switch (property_id)
{
case CV_CAP_PROP_MODE:
return captureMode;
case cv::CAP_PROP_HW_DEVICE:
return hwDeviceIndex;
case cv::CAP_PROP_HW_ACCELERATION:
return static_cast<double>(va_type);
case CV_CAP_PROP_CONVERT_RGB:
return convertFormat ? 1 : 0;
case CV_CAP_PROP_SAR_NUM:
return captureFormat.aspectRatioNum;
case CV_CAP_PROP_SAR_DEN:
return captureFormat.aspectRatioDenom;
case CV_CAP_PROP_FRAME_WIDTH:
return captureFormat.width;
case CV_CAP_PROP_FRAME_HEIGHT:
return captureFormat.height;
case CV_CAP_PROP_FOURCC:
return captureFormat.subType.Data1;
case CV_CAP_PROP_FPS:
return captureFormat.getFramerate();
case CV_CAP_PROP_FRAME_COUNT:
if (duration != 0)
return floor(((double)duration / 1e7)* captureFormat.getFramerate() + 0.5);
else
break;
case CV_CAP_PROP_POS_FRAMES:
return floor(((double)sampleTime / 1e7)* captureFormat.getFramerate() + 0.5);
case CV_CAP_PROP_POS_MSEC:
return (double)sampleTime / 1e4;
case CV_CAP_PROP_POS_AVI_RATIO:
if (duration != 0)
return (double)sampleTime / duration;
else
break;
case CV_CAP_PROP_BRIGHTNESS:
if (readComplexPropery<IAMVideoProcAmp>(VideoProcAmp_Brightness, cVal))
return cVal;
break;
case CV_CAP_PROP_CONTRAST:
if (readComplexPropery<IAMVideoProcAmp>(VideoProcAmp_Contrast, cVal))
return cVal;
break;
case CV_CAP_PROP_SATURATION:
if (readComplexPropery<IAMVideoProcAmp>(VideoProcAmp_Saturation, cVal))
return cVal;
break;
case CV_CAP_PROP_HUE:
if (readComplexPropery<IAMVideoProcAmp>(VideoProcAmp_Hue, cVal))
return cVal;
break;
case CV_CAP_PROP_GAIN:
if (readComplexPropery<IAMVideoProcAmp>(VideoProcAmp_Gain, cVal))
return cVal;
break;
case CV_CAP_PROP_SHARPNESS:
if (readComplexPropery<IAMVideoProcAmp>(VideoProcAmp_Sharpness, cVal))
return cVal;
break;
case CV_CAP_PROP_GAMMA:
if (readComplexPropery<IAMVideoProcAmp>(VideoProcAmp_Gamma, cVal))
return cVal;
break;
case CV_CAP_PROP_BACKLIGHT:
if (readComplexPropery<IAMVideoProcAmp>(VideoProcAmp_BacklightCompensation, cVal))
return cVal;
break;
case CV_CAP_PROP_MONOCHROME:
if (readComplexPropery<IAMVideoProcAmp>(VideoProcAmp_ColorEnable, cVal))
return cVal == 0 ? 1 : 0;
break;
case CV_CAP_PROP_TEMPERATURE:
if (readComplexPropery<IAMVideoProcAmp>(VideoProcAmp_WhiteBalance, cVal))
return cVal;
break;
case CV_CAP_PROP_PAN:
if (readComplexPropery<IAMCameraControl>(CameraControl_Pan, cVal))
return cVal;
break;
case CV_CAP_PROP_TILT:
if (readComplexPropery<IAMCameraControl>(CameraControl_Tilt, cVal))
return cVal;
break;
case CV_CAP_PROP_ROLL:
if (readComplexPropery<IAMCameraControl>(CameraControl_Roll, cVal))
return cVal;
break;
case CV_CAP_PROP_IRIS:
if (readComplexPropery<IAMCameraControl>(CameraControl_Iris, cVal))
return cVal;
break;
case CV_CAP_PROP_EXPOSURE:
case CV_CAP_PROP_AUTO_EXPOSURE:
if (readComplexPropery<IAMCameraControl>(CameraControl_Exposure, cVal))
{
if (property_id == CV_CAP_PROP_EXPOSURE)
return cVal;
else
return cVal == VideoProcAmp_Flags_Auto;
}
break;
case CV_CAP_PROP_ZOOM:
if (readComplexPropery<IAMCameraControl>(CameraControl_Zoom, cVal))
return cVal;
break;
case CV_CAP_PROP_FOCUS:
case CV_CAP_PROP_AUTOFOCUS:
if (readComplexPropery<IAMCameraControl>(CameraControl_Focus, cVal))
{
if (property_id == CV_CAP_PROP_FOCUS)
return cVal;
else
return cVal == VideoProcAmp_Flags_Auto;
}
break;
case CV_CAP_PROP_WHITE_BALANCE_BLUE_U:
case CV_CAP_PROP_WHITE_BALANCE_RED_V:
case CV_CAP_PROP_RECTIFICATION:
case CV_CAP_PROP_TRIGGER:
case CV_CAP_PROP_TRIGGER_DELAY:
case CV_CAP_PROP_GUID:
case CV_CAP_PROP_ISO_SPEED:
case CV_CAP_PROP_SETTINGS:
case CV_CAP_PROP_BUFFERSIZE:
default:
break;
}
return -1;
}
template <typename CtrlT>
bool CvCapture_MSMF::writeComplexProperty(long prop, double val, long flags)
{
_ComPtr<CtrlT> ctrl;
if (FAILED(videoFileSource->GetServiceForStream((DWORD)MF_SOURCE_READER_MEDIASOURCE, GUID_NULL, IID_PPV_ARGS(&ctrl))))
{
CV_LOG_DEBUG(NULL, "Failed get service for stream");
return false;
}
if (FAILED(ctrl->Set(prop, (long)val, flags)))
{
CV_LOG_DEBUG(NULL, "Failed to set property " << prop);
return false;
}
return true;
}
bool CvCapture_MSMF::setProperty( int property_id, double value )
{
MediaType newFormat = captureFormat;
if (isOpen)
switch (property_id)
{
case CV_CAP_PROP_MODE:
switch ((MSMFCapture_Mode)((int)value))
{
case MODE_SW:
return configureHW(false);
case MODE_HW:
return configureHW(true);
default:
return false;
}
case CV_CAP_PROP_FOURCC:
return configureOutput(newFormat, (int)cvRound(value));
case CV_CAP_PROP_FORMAT:
return configureOutput(newFormat, (int)cvRound(value));
case CV_CAP_PROP_CONVERT_RGB:
convertFormat = (value != 0);
return configureOutput(newFormat, outputFormat);
case CV_CAP_PROP_SAR_NUM:
if (value > 0)
{
newFormat.aspectRatioNum = (UINT32)cvRound(value);
return configureOutput(newFormat, outputFormat);
}
break;
case CV_CAP_PROP_SAR_DEN:
if (value > 0)
{
newFormat.aspectRatioDenom = (UINT32)cvRound(value);
return configureOutput(newFormat, outputFormat);
}
break;
case CV_CAP_PROP_FRAME_WIDTH:
if (value >= 0)
{
newFormat.width = (UINT32)cvRound(value);
return configureOutput(newFormat, outputFormat);
}
break;
case CV_CAP_PROP_FRAME_HEIGHT:
if (value >= 0)
{
newFormat.height = (UINT32)cvRound(value);
return configureOutput(newFormat, outputFormat);
}
break;
case CV_CAP_PROP_FPS:
if (value >= 0)
{
newFormat.setFramerate(value);
return configureOutput(newFormat, outputFormat);
}
break;
case CV_CAP_PROP_FRAME_COUNT:
break;
case CV_CAP_PROP_POS_AVI_RATIO:
if (duration != 0)
return setTime(duration * value, true);
break;
case CV_CAP_PROP_POS_FRAMES:
if (std::fabs(captureFormat.getFramerate()) > 0)
return setTime(value * 1e7 / captureFormat.getFramerate(), false);
break;
case CV_CAP_PROP_POS_MSEC:
return setTime(value * 1e4, false);
case CV_CAP_PROP_BRIGHTNESS:
return writeComplexProperty<IAMVideoProcAmp>(VideoProcAmp_Brightness, value, VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_CONTRAST:
return writeComplexProperty<IAMVideoProcAmp>(VideoProcAmp_Contrast, value, VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_SATURATION:
return writeComplexProperty<IAMVideoProcAmp>(VideoProcAmp_Saturation, value, VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_HUE:
return writeComplexProperty<IAMVideoProcAmp>(VideoProcAmp_Hue, value, VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_GAIN:
return writeComplexProperty<IAMVideoProcAmp>(VideoProcAmp_Gain, value, VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_SHARPNESS:
return writeComplexProperty<IAMVideoProcAmp>(VideoProcAmp_Sharpness, value, VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_GAMMA:
return writeComplexProperty<IAMVideoProcAmp>(VideoProcAmp_Gamma, value, VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_BACKLIGHT:
return writeComplexProperty<IAMVideoProcAmp>(VideoProcAmp_BacklightCompensation, value, VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_MONOCHROME:
return writeComplexProperty<IAMVideoProcAmp>(VideoProcAmp_ColorEnable, value, VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_TEMPERATURE:
return writeComplexProperty<IAMVideoProcAmp>(VideoProcAmp_WhiteBalance, value, VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_PAN:
return writeComplexProperty<IAMCameraControl>(CameraControl_Pan, value, CameraControl_Flags_Manual);
case CV_CAP_PROP_TILT:
return writeComplexProperty<IAMCameraControl>(CameraControl_Tilt, value, CameraControl_Flags_Manual);
case CV_CAP_PROP_ROLL:
return writeComplexProperty<IAMCameraControl>(CameraControl_Roll, value, CameraControl_Flags_Manual);
case CV_CAP_PROP_IRIS:
return writeComplexProperty<IAMCameraControl>(CameraControl_Iris, value, CameraControl_Flags_Manual);
case CV_CAP_PROP_EXPOSURE:
return writeComplexProperty<IAMCameraControl>(CameraControl_Exposure, value, CameraControl_Flags_Manual);
case CV_CAP_PROP_AUTO_EXPOSURE:
return writeComplexProperty<IAMCameraControl>(CameraControl_Exposure, value, value != 0 ? VideoProcAmp_Flags_Auto : VideoProcAmp_Flags_Manual);
case CV_CAP_PROP_ZOOM:
return writeComplexProperty<IAMCameraControl>(CameraControl_Zoom, value, CameraControl_Flags_Manual);
case CV_CAP_PROP_FOCUS:
return writeComplexProperty<IAMCameraControl>(CameraControl_Focus, value, CameraControl_Flags_Manual);
case CV_CAP_PROP_AUTOFOCUS:
return writeComplexProperty<IAMCameraControl>(CameraControl_Focus, value, value != 0 ? CameraControl_Flags_Auto : CameraControl_Flags_Manual);
case CV_CAP_PROP_WHITE_BALANCE_BLUE_U:
case CV_CAP_PROP_WHITE_BALANCE_RED_V:
case CV_CAP_PROP_RECTIFICATION:
case CV_CAP_PROP_TRIGGER:
case CV_CAP_PROP_TRIGGER_DELAY:
case CV_CAP_PROP_GUID:
case CV_CAP_PROP_ISO_SPEED:
case CV_CAP_PROP_SETTINGS:
case CV_CAP_PROP_BUFFERSIZE:
default:
break;
}
return false;
}
cv::Ptr<cv::IVideoCapture> cv::cvCreateCapture_MSMF( int index, const cv::VideoCaptureParameters& params)
{
cv::Ptr<CvCapture_MSMF> capture = cv::makePtr<CvCapture_MSMF>();
if (capture)
{
capture->open(index, &params);
if (capture->isOpened())
return capture;
}
return cv::Ptr<cv::IVideoCapture>();
}
cv::Ptr<cv::IVideoCapture> cv::cvCreateCapture_MSMF (const cv::String& filename, const cv::VideoCaptureParameters& params)
{
cv::Ptr<CvCapture_MSMF> capture = cv::makePtr<CvCapture_MSMF>();
if (capture)
{
capture->open(filename, &params);
if (capture->isOpened())
return capture;
}
return cv::Ptr<cv::IVideoCapture>();
}
//
//
// Media Foundation-based Video Writer
//
//
class CvVideoWriter_MSMF : public cv::IVideoWriter
{
public:
CvVideoWriter_MSMF();
virtual ~CvVideoWriter_MSMF();
virtual bool open(const cv::String& filename, int fourcc,
double fps, cv::Size frameSize, const cv::VideoWriterParameters& params);
virtual void close();
virtual void write(cv::InputArray);
virtual double getProperty(int) const override;
virtual bool setProperty(int, double) { return false; }
virtual bool isOpened() const { return initiated; }
int getCaptureDomain() const CV_OVERRIDE { return cv::CAP_MSMF; }
private:
Media_Foundation& MF;
VideoAccelerationType va_type;
int va_device;
UINT32 videoWidth;
UINT32 videoHeight;
double fps;
UINT32 bitRate;
UINT32 frameSize;
GUID encodingFormat;
GUID inputFormat;
DWORD streamIndex;
_ComPtr<IMFSinkWriter> sinkWriter;
bool initiated;
LONGLONG rtStart;
UINT64 rtDuration;
static const GUID FourCC2GUID(int fourcc);
};
CvVideoWriter_MSMF::CvVideoWriter_MSMF():
MF(Media_Foundation::getInstance()),
va_type(VIDEO_ACCELERATION_NONE),
va_device(-1),
videoWidth(0),
videoHeight(0),
fps(0),
bitRate(0),
frameSize(0),
encodingFormat(),
inputFormat(),
streamIndex(0),
initiated(false),
rtStart(0),
rtDuration(0)
{
}
CvVideoWriter_MSMF::~CvVideoWriter_MSMF()
{
close();
}
const GUID CvVideoWriter_MSMF::FourCC2GUID(int fourcc)
{
switch(fourcc)
{
case CV_FOURCC_MACRO('d', 'v', '2', '5'):
return MFVideoFormat_DV25; break;
case CV_FOURCC_MACRO('d', 'v', '5', '0'):
return MFVideoFormat_DV50; break;
case CV_FOURCC_MACRO('d', 'v', 'c', ' '):
return MFVideoFormat_DVC; break;
case CV_FOURCC_MACRO('d', 'v', 'h', '1'):
return MFVideoFormat_DVH1; break;
case CV_FOURCC_MACRO('d', 'v', 'h', 'd'):
return MFVideoFormat_DVHD; break;
case CV_FOURCC_MACRO('d', 'v', 's', 'd'):
return MFVideoFormat_DVSD; break;
case CV_FOURCC_MACRO('d', 'v', 's', 'l'):
return MFVideoFormat_DVSL; break;
#if (WINVER >= 0x0602)
case CV_FOURCC_MACRO('H', '2', '6', '3'): // Available only for Win 8 target.
return MFVideoFormat_H263; break;
#endif
case CV_FOURCC_MACRO('H', '2', '6', '4'):
return MFVideoFormat_H264; break;
case CV_FOURCC_MACRO('M', '4', 'S', '2'):
return MFVideoFormat_M4S2; break;
case CV_FOURCC_MACRO('M', 'J', 'P', 'G'):
return MFVideoFormat_MJPG; break;
case CV_FOURCC_MACRO('M', 'P', '4', '3'):
return MFVideoFormat_MP43; break;
case CV_FOURCC_MACRO('M', 'P', '4', 'S'):
return MFVideoFormat_MP4S; break;
case CV_FOURCC_MACRO('M', 'P', '4', 'V'):
return MFVideoFormat_MP4V; break;
case CV_FOURCC_MACRO('M', 'P', 'G', '1'):
return MFVideoFormat_MPG1; break;
case CV_FOURCC_MACRO('M', 'S', 'S', '1'):
return MFVideoFormat_MSS1; break;
case CV_FOURCC_MACRO('M', 'S', 'S', '2'):
return MFVideoFormat_MSS2; break;
case CV_FOURCC_MACRO('W', 'M', 'V', '1'):
return MFVideoFormat_WMV1; break;
case CV_FOURCC_MACRO('W', 'M', 'V', '2'):
return MFVideoFormat_WMV2; break;
case CV_FOURCC_MACRO('W', 'M', 'V', '3'):
return MFVideoFormat_WMV3; break;
case CV_FOURCC_MACRO('W', 'V', 'C', '1'):
return MFVideoFormat_WVC1; break;
default:
return MFVideoFormat_H264;
}
}
bool CvVideoWriter_MSMF::open( const cv::String& filename, int fourcc,
double _fps, cv::Size _frameSize, const cv::VideoWriterParameters& params)
{
if (initiated)
close();
if (params.has(VIDEOWRITER_PROP_HW_ACCELERATION))
{
va_type = params.get<VideoAccelerationType>(VIDEOWRITER_PROP_HW_ACCELERATION);
if (va_type != VIDEO_ACCELERATION_NONE && va_type != VIDEO_ACCELERATION_ANY)
{
CV_LOG_ERROR(NULL, "VIDEOIO/MSMF: MSMF backend doesn't support writer acceleration support. Can't handle VIDEOWRITER_PROP_HW_ACCELERATION parameter. Bailout");
return false;
}
}
if (params.has(VIDEOWRITER_PROP_HW_DEVICE))
{
va_device = params.get<int>(VIDEOWRITER_PROP_HW_DEVICE);
if (va_type == VIDEO_ACCELERATION_NONE && va_device != -1)
{
CV_LOG_ERROR(NULL, "VIDEOIO/MSMF: Invalid usage of VIDEOWRITER_PROP_HW_DEVICE without requested H/W acceleration. Bailout");
return false;
}
if (va_type == VIDEO_ACCELERATION_ANY && va_device != -1)
{
CV_LOG_ERROR(NULL, "VIDEOIO/MSMF: Invalid usage of VIDEOWRITER_PROP_HW_DEVICE with 'ANY' H/W acceleration. Bailout");
return false;
}
if (va_device != -1)
{
CV_LOG_ERROR(NULL, "VIDEOIO/MSMF: VIDEOWRITER_PROP_HW_DEVICE is not supported. Specify -1 (auto) value. Bailout");
return false;
}
}
videoWidth = _frameSize.width;
videoHeight = _frameSize.height;
fps = _fps;
bitRate = (UINT32)fps*videoWidth*videoHeight; // 1-bit per pixel
encodingFormat = FourCC2GUID(fourcc);
inputFormat = MFVideoFormat_RGB32;
_ComPtr<IMFMediaType> mediaTypeOut;
_ComPtr<IMFMediaType> mediaTypeIn;
_ComPtr<IMFAttributes> spAttr;
if (// Set the output media type.
SUCCEEDED(MFCreateMediaType(&mediaTypeOut)) &&
SUCCEEDED(mediaTypeOut->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Video)) &&
SUCCEEDED(mediaTypeOut->SetGUID(MF_MT_SUBTYPE, encodingFormat)) &&
SUCCEEDED(mediaTypeOut->SetUINT32(MF_MT_AVG_BITRATE, bitRate)) &&
SUCCEEDED(mediaTypeOut->SetUINT32(MF_MT_INTERLACE_MODE, MFVideoInterlace_Progressive)) &&
SUCCEEDED(MFSetAttributeSize(mediaTypeOut.Get(), MF_MT_FRAME_SIZE, videoWidth, videoHeight)) &&
SUCCEEDED(MFSetAttributeRatio(mediaTypeOut.Get(), MF_MT_FRAME_RATE, (UINT32)(fps * 1000), 1000)) &&
SUCCEEDED(MFSetAttributeRatio(mediaTypeOut.Get(), MF_MT_PIXEL_ASPECT_RATIO, 1, 1)) &&
// Set the input media type.
SUCCEEDED(MFCreateMediaType(&mediaTypeIn)) &&
SUCCEEDED(mediaTypeIn->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Video)) &&
SUCCEEDED(mediaTypeIn->SetGUID(MF_MT_SUBTYPE, inputFormat)) &&
SUCCEEDED(mediaTypeIn->SetUINT32(MF_MT_INTERLACE_MODE, MFVideoInterlace_Progressive)) &&
SUCCEEDED(mediaTypeIn->SetUINT32(MF_MT_DEFAULT_STRIDE, 4 * videoWidth)) && //Assume BGR32 input
SUCCEEDED(MFSetAttributeSize(mediaTypeIn.Get(), MF_MT_FRAME_SIZE, videoWidth, videoHeight)) &&
SUCCEEDED(MFSetAttributeRatio(mediaTypeIn.Get(), MF_MT_FRAME_RATE, (UINT32)(fps * 1000), 1000)) &&
SUCCEEDED(MFSetAttributeRatio(mediaTypeIn.Get(), MF_MT_PIXEL_ASPECT_RATIO, 1, 1)) &&
// Set sink writer parameters
SUCCEEDED(MFCreateAttributes(&spAttr, 10)) &&
SUCCEEDED(spAttr->SetUINT32(MF_READWRITE_ENABLE_HARDWARE_TRANSFORMS, true)) &&
SUCCEEDED(spAttr->SetUINT32(MF_SINK_WRITER_DISABLE_THROTTLING, true))
)
{
// Create the sink writer
cv::AutoBuffer<wchar_t> unicodeFileName(filename.length() + 1);
MultiByteToWideChar(CP_ACP, 0, filename.c_str(), -1, unicodeFileName.data(), (int)filename.length() + 1);
HRESULT hr = MFCreateSinkWriterFromURL(unicodeFileName.data(), NULL, spAttr.Get(), &sinkWriter);
if (SUCCEEDED(hr))
{
// Configure the sink writer and tell it start to start accepting data
if (SUCCEEDED(sinkWriter->AddStream(mediaTypeOut.Get(), &streamIndex)) &&
SUCCEEDED(sinkWriter->SetInputMediaType(streamIndex, mediaTypeIn.Get(), NULL)) &&
SUCCEEDED(sinkWriter->BeginWriting()))
{
initiated = true;
rtStart = 0;
MFFrameRateToAverageTimePerFrame((UINT32)(fps * 1000), 1000, &rtDuration);
VideoAccelerationType actual_va_type = 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 VIDEOWRITER_PROP_HW_ACCELERATION: "
<< va_type << " (actual is " << actual_va_type << "). Bailout");
close();
return false;
}
}
else
{
va_type = actual_va_type;
}
return true;
}
}
}
return false;
}
void CvVideoWriter_MSMF::close()
{
if (initiated)
{
initiated = false;
sinkWriter->Finalize();
sinkWriter.Release();
}
}
void CvVideoWriter_MSMF::write(cv::InputArray img)
{
if (img.empty() ||
(img.channels() != 1 && img.channels() != 3 && img.channels() != 4) ||
(UINT32)img.cols() != videoWidth || (UINT32)img.rows() != videoHeight)
return;
const LONG cbWidth = 4 * videoWidth;
const DWORD cbBuffer = cbWidth * videoHeight;
_ComPtr<IMFSample> sample;
_ComPtr<IMFMediaBuffer> buffer;
BYTE *pData = NULL;
// Prepare a media sample.
if (SUCCEEDED(MFCreateSample(&sample)) &&
// Set sample time stamp and duration.
SUCCEEDED(sample->SetSampleTime(rtStart)) &&
SUCCEEDED(sample->SetSampleDuration(rtDuration)) &&
// Create a memory buffer.
SUCCEEDED(MFCreateMemoryBuffer(cbBuffer, &buffer)) &&
// Set the data length of the buffer.
SUCCEEDED(buffer->SetCurrentLength(cbBuffer)) &&
// Add the buffer to the sample.
SUCCEEDED(sample->AddBuffer(buffer.Get())) &&
// Lock the buffer.
SUCCEEDED(buffer->Lock(&pData, NULL, NULL)))
{
// Copy the video frame to the buffer.
cv::cvtColor(img.getMat(), cv::Mat(videoHeight, videoWidth, CV_8UC4, pData, cbWidth), img.channels() > 1 ? cv::COLOR_BGR2BGRA : cv::COLOR_GRAY2BGRA);
buffer->Unlock();
// Send media sample to the Sink Writer.
if (SUCCEEDED(sinkWriter->WriteSample(streamIndex, sample.Get())))
{
rtStart += rtDuration;
}
}
}
double CvVideoWriter_MSMF::getProperty(int propId) const
{
if (propId == VIDEOWRITER_PROP_HW_ACCELERATION)
{
return static_cast<double>(va_type);
}
else if (propId == VIDEOWRITER_PROP_HW_DEVICE)
{
return static_cast<double>(va_device);
}
return 0;
}
cv::Ptr<cv::IVideoWriter> cv::cvCreateVideoWriter_MSMF( const std::string& filename, int fourcc,
double fps, const cv::Size& frameSize,
const VideoWriterParameters& params)
{
cv::Ptr<CvVideoWriter_MSMF> writer = cv::makePtr<CvVideoWriter_MSMF>();
if (writer)
{
writer->open(filename, fourcc, fps, frameSize, params);
if (writer->isOpened())
return writer;
}
return cv::Ptr<cv::IVideoWriter>();
}
#if defined(BUILD_PLUGIN)
#define NEW_PLUGIN
#ifndef NEW_PLUGIN
#define ABI_VERSION 0
#define API_VERSION 0
#include "plugin_api.hpp"
#else
#define CAPTURE_ABI_VERSION 1
#define CAPTURE_API_VERSION 1
#include "plugin_capture_api.hpp"
#define WRITER_ABI_VERSION 1
#define WRITER_API_VERSION 1
#include "plugin_writer_api.hpp"
#endif
namespace cv {
typedef CvCapture_MSMF CaptureT;
typedef CvVideoWriter_MSMF WriterT;
static
CvResult CV_API_CALL cv_capture_open_with_params(
const char* filename, int camera_index,
int* params, unsigned n_params,
CV_OUT CvPluginCapture* handle
)
{
if (!handle)
return CV_ERROR_FAIL;
*handle = NULL;
if (!filename)
return CV_ERROR_FAIL;
CaptureT* cap = 0;
try
{
cv::VideoCaptureParameters parameters(params, n_params);
cap = new CaptureT();
bool res;
if (filename)
res = cap->open(std::string(filename), &parameters);
else
res = cap->open(camera_index, &parameters);
if (res)
{
*handle = (CvPluginCapture)cap;
return CV_ERROR_OK;
}
}
catch (const std::exception& e)
{
CV_LOG_WARNING(NULL, "MSMF: Exception is raised: " << e.what());
}
catch (...)
{
CV_LOG_WARNING(NULL, "MSMF: Unknown C++ exception is raised");
}
if (cap)
delete cap;
return CV_ERROR_FAIL;
}
static
CvResult CV_API_CALL cv_capture_open(const char* filename, int camera_index, CV_OUT CvPluginCapture* handle)
{
return cv_capture_open_with_params(filename, camera_index, NULL, 0, handle);
}
static
CvResult CV_API_CALL cv_capture_release(CvPluginCapture handle)
{
if (!handle)
return CV_ERROR_FAIL;
CaptureT* instance = (CaptureT*)handle;
delete instance;
return CV_ERROR_OK;
}
static
CvResult CV_API_CALL cv_capture_get_prop(CvPluginCapture handle, int prop, CV_OUT double* val)
{
if (!handle)
return CV_ERROR_FAIL;
if (!val)
return CV_ERROR_FAIL;
try
{
CaptureT* instance = (CaptureT*)handle;
*val = instance->getProperty(prop);
return CV_ERROR_OK;
}
catch (const std::exception& e)
{
CV_LOG_WARNING(NULL, "MSMF: Exception is raised: " << e.what());
return CV_ERROR_FAIL;
}
catch (...)
{
CV_LOG_WARNING(NULL, "MSMF: Unknown C++ exception is raised");
return CV_ERROR_FAIL;
}
}
static
CvResult CV_API_CALL cv_capture_set_prop(CvPluginCapture handle, int prop, double val)
{
if (!handle)
return CV_ERROR_FAIL;
try
{
CaptureT* instance = (CaptureT*)handle;
return instance->setProperty(prop, val) ? CV_ERROR_OK : CV_ERROR_FAIL;
}
catch (const std::exception& e)
{
CV_LOG_WARNING(NULL, "MSMF: Exception is raised: " << e.what());
return CV_ERROR_FAIL;
}
catch (...)
{
CV_LOG_WARNING(NULL, "MSMF: Unknown C++ exception is raised");
return CV_ERROR_FAIL;
}
}
static
CvResult CV_API_CALL cv_capture_grab(CvPluginCapture handle)
{
if (!handle)
return CV_ERROR_FAIL;
try
{
CaptureT* instance = (CaptureT*)handle;
return instance->grabFrame() ? CV_ERROR_OK : CV_ERROR_FAIL;
}
catch (const std::exception& e)
{
CV_LOG_WARNING(NULL, "MSMF: Exception is raised: " << e.what());
return CV_ERROR_FAIL;
}
catch (...)
{
CV_LOG_WARNING(NULL, "MSMF: Unknown C++ exception is raised");
return CV_ERROR_FAIL;
}
}
static
CvResult CV_API_CALL cv_capture_retrieve(CvPluginCapture handle, int stream_idx, cv_videoio_capture_retrieve_cb_t callback, void* userdata)
{
if (!handle)
return CV_ERROR_FAIL;
try
{
CaptureT* instance = (CaptureT*)handle;
Mat img;
if (instance->retrieveFrame(stream_idx, img))
#ifndef NEW_PLUGIN
return callback(stream_idx, img.data, (int)img.step, img.cols, img.rows, img.channels(), userdata);
#else
return callback(stream_idx, img.data, (int)img.step, img.cols, img.rows, img.type(), userdata);
#endif
return CV_ERROR_FAIL;
}
catch (const std::exception& e)
{
CV_LOG_WARNING(NULL, "MSMF: Exception is raised: " << e.what());
return CV_ERROR_FAIL;
}
catch (...)
{
CV_LOG_WARNING(NULL, "MSMF: Unknown C++ exception is raised");
return CV_ERROR_FAIL;
}
}
static
CvResult CV_API_CALL cv_writer_open_with_params(
const char* filename, int fourcc, double fps, int width, int height,
int* params, unsigned n_params,
CV_OUT CvPluginWriter* handle)
{
WriterT* wrt = 0;
try
{
VideoWriterParameters parameters(params, n_params);
wrt = new WriterT();
Size sz(width, height);
if (wrt && wrt->open(filename, fourcc, fps, sz, parameters))
{
*handle = (CvPluginWriter)wrt;
return CV_ERROR_OK;
}
}
catch (const std::exception& e)
{
CV_LOG_WARNING(NULL, "MSMF: Exception is raised: " << e.what());
}
catch (...)
{
CV_LOG_WARNING(NULL, "MSMF: Unknown C++ exception is raised");
}
if (wrt)
delete wrt;
return CV_ERROR_FAIL;
}
static
CvResult CV_API_CALL cv_writer_open(const char* filename, int fourcc, double fps, int width, int height, int isColor,
CV_OUT CvPluginWriter* handle)
{
int params[2] = { VIDEOWRITER_PROP_IS_COLOR, isColor };
return cv_writer_open_with_params(filename, fourcc, fps, width, height, params, 1, handle);
}
static
CvResult CV_API_CALL cv_writer_release(CvPluginWriter handle)
{
if (!handle)
return CV_ERROR_FAIL;
WriterT* instance = (WriterT*)handle;
delete instance;
return CV_ERROR_OK;
}
static
CvResult CV_API_CALL cv_writer_get_prop(CvPluginWriter handle, int prop, CV_OUT double* val)
{
if (!handle)
return CV_ERROR_FAIL;
if (!val)
return CV_ERROR_FAIL;
try
{
WriterT* instance = (WriterT*)handle;
*val = instance->getProperty(prop);
return CV_ERROR_OK;
}
catch (...)
{
return CV_ERROR_FAIL;
}
}
static
CvResult CV_API_CALL cv_writer_set_prop(CvPluginWriter /*handle*/, int /*prop*/, double /*val*/)
{
return CV_ERROR_FAIL;
}
static
CvResult CV_API_CALL cv_writer_write(CvPluginWriter handle, const unsigned char* data, int step, int width, int height, int cn)
{
if (!handle)
return CV_ERROR_FAIL;
try
{
CV_Assert(step >= 0);
WriterT* instance = (WriterT*)handle;
Size sz(width, height);
Mat img(sz, CV_MAKETYPE(CV_8U, cn), (void*)data, (size_t)step);
instance->write(img);
return CV_ERROR_OK;
}
catch (const std::exception& e)
{
CV_LOG_WARNING(NULL, "MSMF: Exception is raised: " << e.what());
return CV_ERROR_FAIL;
}
catch (...)
{
CV_LOG_WARNING(NULL, "MSMF: Unknown C++ exception is raised");
return CV_ERROR_FAIL;
}
}
} // namespace
#ifndef NEW_PLUGIN
static const OpenCV_VideoIO_Plugin_API_preview plugin_api =
{
{
sizeof(OpenCV_VideoIO_Plugin_API_preview), ABI_VERSION, API_VERSION,
CV_VERSION_MAJOR, CV_VERSION_MINOR, CV_VERSION_REVISION, CV_VERSION_STATUS,
"Microsoft Media Foundation OpenCV Video I/O plugin"
},
{
/* 1*/cv::CAP_MSMF,
/* 2*/cv::cv_capture_open,
/* 3*/cv::cv_capture_release,
/* 4*/cv::cv_capture_get_prop,
/* 5*/cv::cv_capture_set_prop,
/* 6*/cv::cv_capture_grab,
/* 7*/cv::cv_capture_retrieve,
/* 8*/cv::cv_writer_open,
/* 9*/cv::cv_writer_release,
/* 10*/cv::cv_writer_get_prop,
/* 11*/cv::cv_writer_set_prop,
/* 12*/cv::cv_writer_write
}
};
const OpenCV_VideoIO_Plugin_API_preview* opencv_videoio_plugin_init_v0(int requested_abi_version, int requested_api_version, void* /*reserved=NULL*/) CV_NOEXCEPT
{
if (requested_abi_version == ABI_VERSION && requested_api_version <= API_VERSION)
return &plugin_api;
return NULL;
}
#else // NEW_PLUGIN
static const OpenCV_VideoIO_Capture_Plugin_API capture_plugin_api =
{
{
sizeof(OpenCV_VideoIO_Capture_Plugin_API), CAPTURE_ABI_VERSION, CAPTURE_API_VERSION,
CV_VERSION_MAJOR, CV_VERSION_MINOR, CV_VERSION_REVISION, CV_VERSION_STATUS,
"Microsoft Media Foundation OpenCV Video I/O plugin"
},
{
/* 1*/cv::CAP_MSMF,
/* 2*/cv::cv_capture_open,
/* 3*/cv::cv_capture_release,
/* 4*/cv::cv_capture_get_prop,
/* 5*/cv::cv_capture_set_prop,
/* 6*/cv::cv_capture_grab,
/* 7*/cv::cv_capture_retrieve,
},
{
/* 8*/cv::cv_capture_open_with_params,
}
};
const OpenCV_VideoIO_Capture_Plugin_API* opencv_videoio_capture_plugin_init_v1(int requested_abi_version, int requested_api_version, void* /*reserved=NULL*/) CV_NOEXCEPT
{
if (requested_abi_version == CAPTURE_ABI_VERSION && requested_api_version <= CAPTURE_API_VERSION)
return &capture_plugin_api;
return NULL;
}
static const OpenCV_VideoIO_Writer_Plugin_API writer_plugin_api =
{
{
sizeof(OpenCV_VideoIO_Writer_Plugin_API), WRITER_ABI_VERSION, WRITER_API_VERSION,
CV_VERSION_MAJOR, CV_VERSION_MINOR, CV_VERSION_REVISION, CV_VERSION_STATUS,
"Microsoft Media Foundation OpenCV Video I/O plugin"
},
{
/* 1*/cv::CAP_MSMF,
/* 2*/cv::cv_writer_open,
/* 3*/cv::cv_writer_release,
/* 4*/cv::cv_writer_get_prop,
/* 5*/cv::cv_writer_set_prop,
/* 6*/cv::cv_writer_write
},
{
/* 7*/cv::cv_writer_open_with_params
}
};
const OpenCV_VideoIO_Writer_Plugin_API* opencv_videoio_writer_plugin_init_v1(int requested_abi_version, int requested_api_version, void* /*reserved=NULL*/) CV_NOEXCEPT
{
if (requested_abi_version == WRITER_ABI_VERSION && requested_api_version <= WRITER_API_VERSION)
return &writer_plugin_api;
return NULL;
}
#endif // NEW_PLUGIN
#endif // BUILD_PLUGIN
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