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mfvideoin.cpp
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#include <stdexcept>
#include <iostream>
#include <vector>
#include <string>
#include <map>
using namespace std;
#include <mfapi.h>
#include <Mferror.h>
#include <Shlwapi.h>
#include <Dshow.h>
#include "mfvideoin.h"
#include "pixfmt.h"
//See also:
//https://github.com/Itseez/opencv/blob/master/modules/highgui/src/cap_msmf.cpp
#define MAX_DEVICE_ID_LEN 100
int EnumDevices(IMFActivate ***ppDevicesOut);
template <class T> void SafeRelease(T **ppT)
{
if (*ppT)
{
(*ppT)->Release();
*ppT = NULL;
}
}
void PrintGuid(GUID guid)
{
LPOLESTR lplpsz;
StringFromCLSID(guid, &lplpsz);
wcout << lplpsz << endl;
CoTaskMemFree(lplpsz);
}
#ifndef IF_EQUAL_RETURN
#define IF_EQUAL_RETURN(param, val) if(val == param) return L#val
#endif
LPCWSTR GetGUIDNameConst(const GUID& guid)
{
//http://msdn.microsoft.com/en-us/library/windows/desktop/ee663602%28v=vs.85%29.aspx
IF_EQUAL_RETURN(guid, MF_MT_MAJOR_TYPE);
IF_EQUAL_RETURN(guid, MF_MT_MAJOR_TYPE);
IF_EQUAL_RETURN(guid, MF_MT_SUBTYPE);
IF_EQUAL_RETURN(guid, MF_MT_ALL_SAMPLES_INDEPENDENT);
IF_EQUAL_RETURN(guid, MF_MT_FIXED_SIZE_SAMPLES);
IF_EQUAL_RETURN(guid, MF_MT_COMPRESSED);
IF_EQUAL_RETURN(guid, MF_MT_SAMPLE_SIZE);
IF_EQUAL_RETURN(guid, MF_MT_WRAPPED_TYPE);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_NUM_CHANNELS);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_SAMPLES_PER_SECOND);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_FLOAT_SAMPLES_PER_SECOND);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_AVG_BYTES_PER_SECOND);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_BLOCK_ALIGNMENT);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_BITS_PER_SAMPLE);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_VALID_BITS_PER_SAMPLE);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_SAMPLES_PER_BLOCK);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_CHANNEL_MASK);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_FOLDDOWN_MATRIX);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_WMADRC_PEAKREF);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_WMADRC_PEAKTARGET);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_WMADRC_AVGREF);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_WMADRC_AVGTARGET);
IF_EQUAL_RETURN(guid, MF_MT_AUDIO_PREFER_WAVEFORMATEX);
IF_EQUAL_RETURN(guid, MF_MT_AAC_PAYLOAD_TYPE);
IF_EQUAL_RETURN(guid, MF_MT_AAC_AUDIO_PROFILE_LEVEL_INDICATION);
IF_EQUAL_RETURN(guid, MF_MT_FRAME_SIZE);
IF_EQUAL_RETURN(guid, MF_MT_FRAME_RATE);
IF_EQUAL_RETURN(guid, MF_MT_FRAME_RATE_RANGE_MAX);
IF_EQUAL_RETURN(guid, MF_MT_FRAME_RATE_RANGE_MIN);
IF_EQUAL_RETURN(guid, MF_MT_PIXEL_ASPECT_RATIO);
IF_EQUAL_RETURN(guid, MF_MT_DRM_FLAGS);
IF_EQUAL_RETURN(guid, MF_MT_PAD_CONTROL_FLAGS);
IF_EQUAL_RETURN(guid, MF_MT_SOURCE_CONTENT_HINT);
IF_EQUAL_RETURN(guid, MF_MT_VIDEO_CHROMA_SITING);
IF_EQUAL_RETURN(guid, MF_MT_INTERLACE_MODE);
IF_EQUAL_RETURN(guid, MF_MT_TRANSFER_FUNCTION);
IF_EQUAL_RETURN(guid, MF_MT_VIDEO_PRIMARIES);
IF_EQUAL_RETURN(guid, MF_MT_CUSTOM_VIDEO_PRIMARIES);
IF_EQUAL_RETURN(guid, MF_MT_YUV_MATRIX);
IF_EQUAL_RETURN(guid, MF_MT_VIDEO_LIGHTING);
IF_EQUAL_RETURN(guid, MF_MT_VIDEO_NOMINAL_RANGE);
IF_EQUAL_RETURN(guid, MF_MT_GEOMETRIC_APERTURE);
IF_EQUAL_RETURN(guid, MF_MT_MINIMUM_DISPLAY_APERTURE);
IF_EQUAL_RETURN(guid, MF_MT_PAN_SCAN_APERTURE);
IF_EQUAL_RETURN(guid, MF_MT_PAN_SCAN_ENABLED);
IF_EQUAL_RETURN(guid, MF_MT_AVG_BITRATE);
IF_EQUAL_RETURN(guid, MF_MT_AVG_BIT_ERROR_RATE);
IF_EQUAL_RETURN(guid, MF_MT_MAX_KEYFRAME_SPACING);
IF_EQUAL_RETURN(guid, MF_MT_DEFAULT_STRIDE);
IF_EQUAL_RETURN(guid, MF_MT_PALETTE);
IF_EQUAL_RETURN(guid, MF_MT_USER_DATA);
IF_EQUAL_RETURN(guid, MF_MT_AM_FORMAT_TYPE);
IF_EQUAL_RETURN(guid, MF_MT_MPEG_START_TIME_CODE);
IF_EQUAL_RETURN(guid, MF_MT_MPEG2_PROFILE);
IF_EQUAL_RETURN(guid, MF_MT_MPEG2_LEVEL);
IF_EQUAL_RETURN(guid, MF_MT_MPEG2_FLAGS);
IF_EQUAL_RETURN(guid, MF_MT_MPEG_SEQUENCE_HEADER);
IF_EQUAL_RETURN(guid, MF_MT_DV_AAUX_SRC_PACK_0);
IF_EQUAL_RETURN(guid, MF_MT_DV_AAUX_CTRL_PACK_0);
IF_EQUAL_RETURN(guid, MF_MT_DV_AAUX_SRC_PACK_1);
IF_EQUAL_RETURN(guid, MF_MT_DV_AAUX_CTRL_PACK_1);
IF_EQUAL_RETURN(guid, MF_MT_DV_VAUX_SRC_PACK);
IF_EQUAL_RETURN(guid, MF_MT_DV_VAUX_CTRL_PACK);
IF_EQUAL_RETURN(guid, MF_MT_ARBITRARY_HEADER);
IF_EQUAL_RETURN(guid, MF_MT_ARBITRARY_FORMAT);
IF_EQUAL_RETURN(guid, MF_MT_IMAGE_LOSS_TOLERANT);
IF_EQUAL_RETURN(guid, MF_MT_MPEG4_SAMPLE_DESCRIPTION);
IF_EQUAL_RETURN(guid, MF_MT_MPEG4_CURRENT_SAMPLE_ENTRY);
IF_EQUAL_RETURN(guid, MF_MT_ORIGINAL_4CC);
IF_EQUAL_RETURN(guid, MF_MT_ORIGINAL_WAVE_FORMAT_TAG);
//IF_EQUAL_RETURN(guid, FORMAT_VideoInfo); //Dshow dependent
//IF_EQUAL_RETURN(guid, FORMAT_VideoInfo2);
// Media types
IF_EQUAL_RETURN(guid, MFMediaType_Audio);
IF_EQUAL_RETURN(guid, MFMediaType_Video);
IF_EQUAL_RETURN(guid, MFMediaType_Protected);
IF_EQUAL_RETURN(guid, MFMediaType_SAMI);
IF_EQUAL_RETURN(guid, MFMediaType_Script);
IF_EQUAL_RETURN(guid, MFMediaType_Image);
IF_EQUAL_RETURN(guid, MFMediaType_HTML);
IF_EQUAL_RETURN(guid, MFMediaType_Binary);
IF_EQUAL_RETURN(guid, MFMediaType_FileTransfer);
IF_EQUAL_RETURN(guid, MFVideoFormat_AI44); // FCC('AI44')
IF_EQUAL_RETURN(guid, MFVideoFormat_ARGB32); // D3DFMT_A8R8G8B8
IF_EQUAL_RETURN(guid, MFVideoFormat_AYUV); // FCC('AYUV')
IF_EQUAL_RETURN(guid, MFVideoFormat_DV25); // FCC('dv25')
IF_EQUAL_RETURN(guid, MFVideoFormat_DV50); // FCC('dv50')
IF_EQUAL_RETURN(guid, MFVideoFormat_DVH1); // FCC('dvh1')
IF_EQUAL_RETURN(guid, MFVideoFormat_DVSD); // FCC('dvsd')
IF_EQUAL_RETURN(guid, MFVideoFormat_DVSL); // FCC('dvsl')
IF_EQUAL_RETURN(guid, MFVideoFormat_H264); // FCC('H264')
IF_EQUAL_RETURN(guid, MFVideoFormat_I420); // FCC('I420')
IF_EQUAL_RETURN(guid, MFVideoFormat_IYUV); // FCC('IYUV')
IF_EQUAL_RETURN(guid, MFVideoFormat_M4S2); // FCC('M4S2')
IF_EQUAL_RETURN(guid, MFVideoFormat_MJPG);
IF_EQUAL_RETURN(guid, MFVideoFormat_MP43); // FCC('MP43')
IF_EQUAL_RETURN(guid, MFVideoFormat_MP4S); // FCC('MP4S')
IF_EQUAL_RETURN(guid, MFVideoFormat_MP4V); // FCC('MP4V')
IF_EQUAL_RETURN(guid, MFVideoFormat_MPG1); // FCC('MPG1')
IF_EQUAL_RETURN(guid, MFVideoFormat_MSS1); // FCC('MSS1')
IF_EQUAL_RETURN(guid, MFVideoFormat_MSS2); // FCC('MSS2')
IF_EQUAL_RETURN(guid, MFVideoFormat_NV11); // FCC('NV11')
IF_EQUAL_RETURN(guid, MFVideoFormat_NV12); // FCC('NV12')
IF_EQUAL_RETURN(guid, MFVideoFormat_P010); // FCC('P010')
IF_EQUAL_RETURN(guid, MFVideoFormat_P016); // FCC('P016')
IF_EQUAL_RETURN(guid, MFVideoFormat_P210); // FCC('P210')
IF_EQUAL_RETURN(guid, MFVideoFormat_P216); // FCC('P216')
IF_EQUAL_RETURN(guid, MFVideoFormat_RGB24); // D3DFMT_R8G8B8
IF_EQUAL_RETURN(guid, MFVideoFormat_RGB32); // D3DFMT_X8R8G8B8
IF_EQUAL_RETURN(guid, MFVideoFormat_RGB555); // D3DFMT_X1R5G5B5
IF_EQUAL_RETURN(guid, MFVideoFormat_RGB565); // D3DFMT_R5G6B5
IF_EQUAL_RETURN(guid, MFVideoFormat_RGB8);
IF_EQUAL_RETURN(guid, MFVideoFormat_UYVY); // FCC('UYVY')
IF_EQUAL_RETURN(guid, MFVideoFormat_v210); // FCC('v210')
IF_EQUAL_RETURN(guid, MFVideoFormat_v410); // FCC('v410')
IF_EQUAL_RETURN(guid, MFVideoFormat_WMV1); // FCC('WMV1')
IF_EQUAL_RETURN(guid, MFVideoFormat_WMV2); // FCC('WMV2')
IF_EQUAL_RETURN(guid, MFVideoFormat_WMV3); // FCC('WMV3')
IF_EQUAL_RETURN(guid, MFVideoFormat_WVC1); // FCC('WVC1')
IF_EQUAL_RETURN(guid, MFVideoFormat_Y210); // FCC('Y210')
IF_EQUAL_RETURN(guid, MFVideoFormat_Y216); // FCC('Y216')
IF_EQUAL_RETURN(guid, MFVideoFormat_Y410); // FCC('Y410')
IF_EQUAL_RETURN(guid, MFVideoFormat_Y416); // FCC('Y416')
IF_EQUAL_RETURN(guid, MFVideoFormat_Y41P);
IF_EQUAL_RETURN(guid, MFVideoFormat_Y41T);
IF_EQUAL_RETURN(guid, MFVideoFormat_YUY2); // FCC('YUY2')
IF_EQUAL_RETURN(guid, MFVideoFormat_YV12); // FCC('YV12')
IF_EQUAL_RETURN(guid, MFVideoFormat_YVYU);
IF_EQUAL_RETURN(guid, MFAudioFormat_PCM); // WAVE_FORMAT_PCM
IF_EQUAL_RETURN(guid, MFAudioFormat_Float); // WAVE_FORMAT_IEEE_FLOAT
IF_EQUAL_RETURN(guid, MFAudioFormat_DTS); // WAVE_FORMAT_DTS
IF_EQUAL_RETURN(guid, MFAudioFormat_Dolby_AC3_SPDIF); // WAVE_FORMAT_DOLBY_AC3_SPDIF
IF_EQUAL_RETURN(guid, MFAudioFormat_DRM); // WAVE_FORMAT_DRM
IF_EQUAL_RETURN(guid, MFAudioFormat_WMAudioV8); // WAVE_FORMAT_WMAUDIO2
IF_EQUAL_RETURN(guid, MFAudioFormat_WMAudioV9); // WAVE_FORMAT_WMAUDIO3
IF_EQUAL_RETURN(guid, MFAudioFormat_WMAudio_Lossless); // WAVE_FORMAT_WMAUDIO_LOSSLESS
IF_EQUAL_RETURN(guid, MFAudioFormat_WMASPDIF); // WAVE_FORMAT_WMASPDIF
IF_EQUAL_RETURN(guid, MFAudioFormat_MSP1); // WAVE_FORMAT_WMAVOICE9
IF_EQUAL_RETURN(guid, MFAudioFormat_MP3); // WAVE_FORMAT_MPEGLAYER3
IF_EQUAL_RETURN(guid, MFAudioFormat_MPEG); // WAVE_FORMAT_MPEG
IF_EQUAL_RETURN(guid, MFAudioFormat_AAC); // WAVE_FORMAT_MPEG_HEAAC
IF_EQUAL_RETURN(guid, MFAudioFormat_ADTS); // WAVE_FORMAT_MPEG_ADTS_AAC
return NULL;
}
HRESULT GetDefaultStride(IMFMediaType *pType, LONG *plStride)
{
LONG lStride = 0;
// Try to get the default stride from the media type.
HRESULT hr = pType->GetUINT32(MF_MT_DEFAULT_STRIDE, (UINT32*)&lStride);
if (FAILED(hr))
{
// Attribute not set. Try to calculate the default stride.
GUID subtype = GUID_NULL;
UINT32 width = 0;
UINT32 height = 0;
// Get the subtype and the image size.
hr = pType->GetGUID(MF_MT_SUBTYPE, &subtype);
if (FAILED(hr))
{
goto done;
}
hr = MFGetAttributeSize(pType, MF_MT_FRAME_SIZE, &width, &height);
if (FAILED(hr))
{
goto done;
}
hr = MFGetStrideForBitmapInfoHeader(subtype.Data1, width, &lStride);
if (FAILED(hr))
{
goto done;
}
// Set the attribute for later reference.
(void)pType->SetUINT32(MF_MT_DEFAULT_STRIDE, UINT32(lStride));
}
if (SUCCEEDED(hr))
{
*plStride = lStride;
}
done:
return hr;
}
DWORD SampleToStaticObj(IMFSample *pSample, char **buff)
{
if(*buff!=NULL)
throw runtime_error("Buff ptr should be initially null");
IMFMediaBuffer *ppBuffer = NULL;
HRESULT hr = pSample->ConvertToContiguousBuffer(&ppBuffer);
//cout << "ConvertToContiguousBuffer=" << SUCCEEDED(hr) << "\tstride="<< plStride << "\n";
IMF2DBuffer *m_p2DBuffer = NULL;
ppBuffer->QueryInterface(IID_IMF2DBuffer, (void**)&m_p2DBuffer);
//cout << "IMF2DBuffer=" << (m_p2DBuffer != NULL) << "\n";
DWORD pcbCurrentLength = 0;
BYTE *ppbBuffer = NULL;
DWORD pcbMaxLength = 0;
if(SUCCEEDED(hr))
{
hr = ppBuffer->Lock(&ppbBuffer, &pcbMaxLength, &pcbCurrentLength);
//cout << "pcbMaxLength="<< pcbMaxLength << "\tpcbCurrentLength=" <<pcbCurrentLength << "\n";
//Return buffer as python format data
*buff = new char[pcbCurrentLength];
memcpy(*buff, ppbBuffer, pcbCurrentLength);
ppBuffer->Unlock();
}
if(ppBuffer) ppBuffer->Release();
return pcbCurrentLength;
}
class SourceReaderCB : public IMFSourceReaderCallback
{
//http://msdn.microsoft.com/en-us/library/windows/desktop/gg583871%28v=vs.85%29.aspx
public:
LONG volatile m_nRefCount;
CRITICAL_SECTION lock;
int framePending;
unsigned int maxNumFrames;
unsigned int droppedFrames;
vector<char *> frameBuff;
vector<DWORD> frameLenBuff;
vector<HRESULT> hrStatusBuff;
vector<DWORD> dwStreamIndexBuff;
vector<DWORD> dwStreamFlagsBuff;
vector<LONGLONG> llTimestampBuff;
SourceReaderCB()
{
m_nRefCount = 0;
framePending = 0;
InitializeCriticalSection(&lock);
maxNumFrames = 1;
droppedFrames = 0;
}
virtual ~SourceReaderCB()
{
DeleteCriticalSection(&lock);
for(unsigned int i=0; i<this->frameBuff.size(); i++)
delete [] this->frameBuff[i];
}
STDMETHODIMP QueryInterface(REFIID iid, void** ppv)
{
static const QITAB qit[] =
{
QITABENT(SourceReaderCB, IMFSourceReaderCallback),
{ 0 },
};
return QISearch(this, qit, iid, ppv);
}
void CheckForBufferOverflow()
{
//The lock should already be in use
while(this->frameBuff.size() > this->maxNumFrames)
{
//Drop an old frame if buffer is starting to overflow
char *frameToDrop = frameBuff[0];
delete [] frameToDrop;
frameToDrop = NULL;
frameBuff.erase(frameBuff.begin());
frameLenBuff.erase(frameLenBuff.begin());
hrStatusBuff.erase(hrStatusBuff.begin());
dwStreamIndexBuff.erase(dwStreamIndexBuff.begin());
dwStreamFlagsBuff.erase(dwStreamFlagsBuff.begin());
llTimestampBuff.erase(llTimestampBuff.begin());
droppedFrames ++;
}
}
void SetMaxBufferSize(unsigned maxBuffSizeIn)
{
EnterCriticalSection(&lock);
this->maxNumFrames = maxBuffSizeIn;
this->CheckForBufferOverflow();
LeaveCriticalSection(&lock);
}
STDMETHODIMP OnReadSample(HRESULT hrStatus, DWORD dwStreamIndex,
DWORD dwStreamFlags, LONGLONG llTimestamp, IMFSample *pSample)
{
//cout << "OnReadSample: " << llTimestamp << endl;
EnterCriticalSection(&lock);
if (pSample)
{
char *buff = NULL;
DWORD buffLen = SampleToStaticObj(pSample, &buff);
//cout << (long) buff << "," << buffLen << endl;
//if(buff!=NULL) delete [] buff;
//Always add frame to buffer
frameBuff.push_back(buff);
frameLenBuff.push_back(buffLen);
hrStatusBuff.push_back(hrStatus);
dwStreamIndexBuff.push_back(dwStreamIndex);
dwStreamFlagsBuff.push_back(dwStreamFlags);
llTimestampBuff.push_back(llTimestamp);
this->CheckForBufferOverflow();
}
this->framePending = 0;
LeaveCriticalSection(&lock);
return S_OK;
}
STDMETHODIMP_(ULONG) AddRef()
{
return InterlockedIncrement(&m_nRefCount);
}
STDMETHODIMP_(ULONG) Release()
{
ULONG uCount = InterlockedDecrement(&m_nRefCount);
if (uCount == 0)
{
//cout << "self destruct" << endl;
delete this;
}
return uCount;
}
STDMETHODIMP OnEvent(DWORD, IMFMediaEvent *)
{
return S_OK;
}
STDMETHODIMP OnFlush(DWORD)
{
return S_OK;
}
void SetPending()
{
EnterCriticalSection(&lock);
this->framePending = 1;
LeaveCriticalSection(&lock);
}
int GetPending()
{
EnterCriticalSection(&lock);
int pendingCopy = this->framePending;
LeaveCriticalSection(&lock);
return pendingCopy;
}
void WaitForFrame()
{
while(1)
{
EnterCriticalSection(&lock);
int pendingCopy = this->framePending;
LeaveCriticalSection(&lock);
if (!pendingCopy) return;
Sleep(10);
}
}
int GetFrame(HRESULT *hrStatus, DWORD *dwStreamIndex,
DWORD *dwStreamFlags, LONGLONG *llTimestamp, char **frame, DWORD *buffLen)
{
int ret = 0;
*hrStatus = S_OK;
*dwStreamIndex = 0;
*dwStreamFlags = 0;
*llTimestamp = 0;
*frame = NULL;
*buffLen = 0;
EnterCriticalSection(&lock);
if(this->frameBuff.size()>0)
{
*frame = frameBuff[0];
*buffLen = frameLenBuff[0];
*hrStatus = hrStatusBuff[0];
*dwStreamIndex = dwStreamIndexBuff[0];
*dwStreamFlags = dwStreamFlagsBuff[0];
*llTimestamp = llTimestampBuff[0];
this->frameBuff.erase(this->frameBuff.begin());
this->frameLenBuff.erase(this->frameLenBuff.begin());
this->hrStatusBuff.erase(this->hrStatusBuff.begin());
this->dwStreamIndexBuff.erase(this->dwStreamIndexBuff.begin());
this->dwStreamFlagsBuff.erase(this->dwStreamFlagsBuff.begin());
this->llTimestampBuff.erase(this->llTimestampBuff.begin());
ret = 1;
}
LeaveCriticalSection(&lock);
return ret;
}
};
//**************************************************************************
WmfBase::WmfBase() : Base_Video_In()
{
HRESULT hr = MFStartup(MF_VERSION);
if(!SUCCEEDED(hr))
throw std::runtime_error("Media foundation startup failed");
hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
if(hr == RPC_E_CHANGED_MODE)
throw std::runtime_error("CoInitializeEx failed");
}
WmfBase::~WmfBase()
{
MFShutdown();
CoUninitialize();
}
//***************************************************************************
MfVideoIn::MfVideoIn(const wchar_t *devNameIn) : WmfBase()
{
this->asyncMode = 1;
this->devName = devNameIn;
this->reader = NULL;
this->source = NULL;
this->readerCallback = NULL;
this->stopping = 0;
this->stopped = 0;
this->openDevFlag = 0;
this->startDevFlag = 0;
this->stopDevFlag = 0;
this->closeDevFlag = 0;
this->maxBuffSize = 1;
InitializeCriticalSection(&lock);
}
MfVideoIn::~MfVideoIn()
{
this->WaitForStop();
SafeRelease(&reader);
SafeRelease(&source);
DeleteCriticalSection(&lock);
}
void MfVideoIn::Stop()
{
EnterCriticalSection(&lock);
this->stopping = 1;
LeaveCriticalSection(&lock);
}
void MfVideoIn::WaitForStop()
{
this->Stop();
int waiting = 1;
while(waiting)
{
EnterCriticalSection(&lock);
waiting = !this->stopped;
LeaveCriticalSection(&lock);
Sleep(10);
}
}
void MfVideoIn::OpenDevice()
{
cout << "MfVideoIn::OpenDevice()" << endl;
EnterCriticalSection(&lock);
this->openDevFlag = 1;
LeaveCriticalSection(&lock);
}
void MfVideoIn::SetFormat(const char *fmt, int width, int height)
{
}
void MfVideoIn::StartDevice(int buffer_count)
{
cout << "MfVideoIn::StartDevice()" << endl;
EnterCriticalSection(&lock);
this->startDevFlag = 1;
LeaveCriticalSection(&lock);
}
void MfVideoIn::StopDevice()
{
EnterCriticalSection(&lock);
this->stopDevFlag = 1;
LeaveCriticalSection(&lock);
}
void MfVideoIn::CloseDevice()
{
cout << "MfVideoIn::CloseDevice()" << endl;
EnterCriticalSection(&lock);
this->closeDevFlag = 1;
LeaveCriticalSection(&lock);
}
int MfVideoIn::GetFrame(unsigned char **buffOut, class FrameMetaData *metaOut)
{
if(buffOut==NULL)
throw runtime_error("Buffer ptr cannot be null");
if(metaOut==NULL)
throw runtime_error("Meta data pointer cannot be null");
EnterCriticalSection(&lock);
if(this->frameBuff.size() == 0)
{
LeaveCriticalSection(&lock);
return 0;
}
unsigned char* currentBuff = (unsigned char *)this->frameBuff[0];
std::string currentPixFmt = "Unknown";
unsigned currentBuffLen = this->frameLenBuff[0];
//wcout << this->majorTypeBuff[0] << "," << this->subTypeBuff[0] << endl;
if(wcscmp(this->subTypeBuff[0].c_str(), L"MFVideoFormat_YUY2")==0)
currentPixFmt = "YUYV"; //YUYV = YUY2
if(wcscmp(this->subTypeBuff[0].c_str(), L"MFVideoFormat_RGB24")==0)
currentPixFmt = "RGB24INV";
//Do conversion to rgb
unsigned char *buffConv = NULL;
unsigned buffConvLen = 0;
int widthTmp = this->widthBuff[0];
int heightTmp = this->heightBuff[0];
int ok = DecodeFrame(currentBuff, currentBuffLen,
currentPixFmt.c_str(),
widthTmp, heightTmp,
"RGB24",
&buffConv,
&buffConvLen);
if(ok)
{
delete [] currentBuff; //Now unneeded
currentBuff = buffConv;
currentPixFmt = "RGB24";
currentBuffLen = buffConvLen;
}
else
{
cout << "Cannot convert from pix format ";
wcout << this->subTypeBuff[0] << endl;
}
*buffOut = currentBuff;
metaOut->fmt = currentPixFmt;
metaOut->width = this->widthBuff[0];
metaOut->height = this->heightBuff[0];
metaOut->buffLen = currentBuffLen;
metaOut->sequence = 0;
metaOut->tv_sec = (unsigned long)(this->llTimestampBuff[0] / 1e7); //in 100-nanosecond units
metaOut->tv_usec = (unsigned long)((this->llTimestampBuff[0] - metaOut->tv_sec * 1e7) / 10);
this->frameBuff.erase(this->frameBuff.begin());
this->frameLenBuff.erase(this->frameLenBuff.begin());
this->hrStatusBuff.erase(this->hrStatusBuff.begin());
this->dwStreamIndexBuff.erase(this->dwStreamIndexBuff.begin());
this->dwStreamFlagsBuff.erase(this->dwStreamFlagsBuff.begin());
this->llTimestampBuff.erase(this->llTimestampBuff.begin());
this->PopFrontMetaDataBuff();
LeaveCriticalSection(&lock);
return 1;
}
//***************************************************************
void MfVideoIn::Run()
{
int running = 1;
try
{
while(running)
{
EnterCriticalSection(&lock);
running = !this->stopping || this->stopDevFlag || this->closeDevFlag;
int openDevFlagTmp = this->openDevFlag;
this->openDevFlag = 0;
int startDevFlagTmp = this->startDevFlag;
this->startDevFlag = 0;
int stopDevFlagTmp = this->stopDevFlag;
this->stopDevFlag = 0;
int closeDevFlagTmp = this->closeDevFlag;
this->closeDevFlag = 0;
LeaveCriticalSection(&lock);
if(!running) continue;
if(openDevFlagTmp)
this->OpenDeviceInternal();
if(startDevFlagTmp)
this->StartDeviceInternal();
if(this->reader != NULL)
this->ReadFramesInternal();
if(stopDevFlagTmp)
this->StopDeviceInternal();
if(closeDevFlagTmp)
this->CloseDeviceInternal();
Sleep(10);
}
}
catch(std::exception &err)
{
cout << err.what() << endl;
}
EnterCriticalSection(&lock);
this->stopped = 1;
LeaveCriticalSection(&lock);
}
void MfVideoIn::OpenDeviceInternal()
{
//Check if source is already available
if(this->source != NULL)
throw runtime_error("Device already open");
//Open a new source
IMFActivate **ppDevices = NULL;
int count = EnumDevices(&ppDevices);
int devIndex = -1;
//Find device
for(int i=0; i<count; i++)
{
IMFActivate *pActivate = ppDevices[i];
wchar_t *symbolicLink = NULL;
HRESULT hr = pActivate->GetAllocatedString(
MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_SYMBOLIC_LINK,
&symbolicLink,
NULL
);
if(!SUCCEEDED(hr))
{
SafeRelease(ppDevices);
throw std::runtime_error("GetAllocatedString failed");
}
if(wcscmp(symbolicLink, this->devName.c_str())==0)
{
devIndex = i;
}
CoTaskMemFree(symbolicLink);
}
if(devIndex == -1)
throw runtime_error("Device not found");
IMFActivate *pActivate = ppDevices[devIndex];
//Activate device object
IMFMediaSource *sourceTmp = NULL;
HRESULT hr = pActivate->ActivateObject(
__uuidof(IMFMediaSource),
(void**)&sourceTmp
);
if(!SUCCEEDED(hr))
{
SafeRelease(ppDevices);
throw std::runtime_error("ActivateObject failed");
}
this->source = sourceTmp;
SafeRelease(ppDevices);
}
void MfVideoIn::StartDeviceInternal()
{
//Create reader
IMFAttributes *pAttributes = NULL;
HRESULT hr = MFCreateAttributes(&pAttributes, 1);
if(!SUCCEEDED(hr))
throw std::runtime_error("MFCreateAttributes failed");
if(source==NULL)
throw std::runtime_error("Source not open");
//Set attributes for reader
if(this->asyncMode)
{
this->readerCallback = new SourceReaderCB();
hr = pAttributes->SetUnknown(MF_SOURCE_READER_ASYNC_CALLBACK, this->readerCallback);
}
IMFSourceReader *readerTmp = NULL;
hr = MFCreateSourceReaderFromMediaSource(this->source, pAttributes, &readerTmp);
if(!SUCCEEDED(hr))
{
SafeRelease(&pAttributes);
throw std::runtime_error("MFCreateSourceReaderFromMediaSource failed");
}
this->reader = readerTmp;
//this->GetMfControl(CameraControl_Exposure);
//this->SetMfControl(CameraControl_Exposure, -3, 1);
//this->GetMfControl(CameraControl_Exposure, 1);
/*try
{
int ret = this->SetMfControl(CameraControl_Exposure, -3, CameraControl_Flags_Manual);
std::cout << "ret" << ret << std::endl;
}
catch(std::runtime_error &err)
{
std::cout << "exception " << err.what() << std::endl;
}*/
SafeRelease(&pAttributes);
}
int MfVideoIn::GetMfControl(long prop, int range)
{
long Min = 0;
long Max = 0;
long Step = 0;
long Default = 0;
long Flag = 0;
IAMCameraControl *pProcControl = NULL;
HRESULT hr = this->source->QueryInterface(IID_PPV_ARGS(&pProcControl));
if(!SUCCEEDED(hr))
throw runtime_error("IAMCameraControl interface not available");
hr = pProcControl->GetRange(prop, &Min, &Max, &Step, &Default, &Flag);
if(!SUCCEEDED(hr))
{
SafeRelease(&pProcControl);
return 0;
}
if(range)
{
std::cout << "Min " << Min << std::endl;
std::cout << "Max " << Max << std::endl;
std::cout << "Step " << Step << std::endl;
std::cout << "Default " << Default << std::endl;
std::cout << "Allowed Flag " << Flag << std::endl;
}
long val = 0, flags = 0;
hr = pProcControl->Get(prop, &val, &flags);
std::cout << "Current Value " << prop << " " << val << std::endl;
std::cout << "Current Flag " << prop << " " << flags << std::endl;
SafeRelease(&pProcControl);
return SUCCEEDED(hr);
}
int MfVideoIn::SetMfControl(long prop, long value, long flags)
{
if(flags==0)
flags = CameraControl_Flags_Manual;
IAMCameraControl *pProcControl = NULL;
HRESULT hr = this->source->QueryInterface(IID_PPV_ARGS(&pProcControl));
if(!SUCCEEDED(hr))
throw runtime_error("IAMCameraControl interface not available");
hr = pProcControl->Set(prop, value, flags);
SafeRelease(&pProcControl);
return SUCCEEDED(hr);
}
int MfVideoIn::GetMfParameter(long param, int range)
{
long Min = 0;
long Max = 0;
long Step = 0;
long Default = 0;
long Flag = 0;
IAMVideoProcAmp *pProcAmp = NULL;
HRESULT hr = this->source->QueryInterface(IID_PPV_ARGS(&pProcAmp));
if(!SUCCEEDED(hr))
throw runtime_error("IAMCameraControl interface not available");
hr = pProcAmp->GetRange(param, &Min, &Max, &Step, &Default, &Flag);
if(!SUCCEEDED(hr))
{
SafeRelease(&pProcAmp);
return 0;
}
if(range)
{
std::cout << "param "<< param << " Min " << Min << std::endl;
std::cout << "param "<< param << " Max " << Max << std::endl;
std::cout << "param "<< param << " Step " << Step << std::endl;
std::cout << "param "<< param << " Default " << Default << std::endl;
std::cout << "param "<< param << " Allowed Flag " << Flag << std::endl;
}
long val = 0, flags = 0;
hr = pProcAmp->Get(param, &val, &flags);
std::cout << "param "<< param << " Current Value " << val << std::endl;
std::cout << "param "<< param << " Current Flag " << flags << std::endl;
SafeRelease(&pProcAmp);
return SUCCEEDED(hr);
}
int MfVideoIn::SetMfParameter(long param, long value, long flags)
{
if(flags==0)
flags = CameraControl_Flags_Manual;
IAMVideoProcAmp *pProcAmp = NULL;
HRESULT hr = this->source->QueryInterface(IID_PPV_ARGS(&pProcAmp));
if(!SUCCEEDED(hr))
throw runtime_error("IAMCameraControl interface not available");
hr = pProcAmp->Set(param, value, flags);
SafeRelease(&pProcAmp);
return SUCCEEDED(hr);
}
void MfVideoIn::SetSampleMetaData(DWORD streamIndex)
{
//Set meta data in output object
IMFMediaType *pCurrentType = NULL;
LONG plStride = 0;
GUID majorType=GUID_NULL, subType=GUID_NULL;
UINT32 width = 0;
UINT32 height = 0;
HRESULT hr = this->reader->GetCurrentMediaType(streamIndex, &pCurrentType);
if(!SUCCEEDED(hr)) cout << "Error 3\n";
BOOL isComp = FALSE;
hr = pCurrentType->IsCompressedFormat(&isComp);
hr = pCurrentType->GetGUID(MF_MT_MAJOR_TYPE, &majorType);
LPCWSTR typePtr = GetGUIDNameConst(majorType);
if(!SUCCEEDED(hr)) cout << "Error 4\n";
hr = pCurrentType->GetGUID(MF_MT_SUBTYPE, &subType);
if(!SUCCEEDED(hr)) cout << "Error 5\n";
int isVideo = (majorType==MFMediaType_Video);
if(isVideo)
{
GetDefaultStride(pCurrentType, &plStride);
hr = MFGetAttributeSize(pCurrentType, MF_MT_FRAME_SIZE, &width, &height);
if(!SUCCEEDED(hr)) cout << "Error 20\n";
}
LPCWSTR subTypePtr = GetGUIDNameConst(subType);
this->plStrideBuff.push_back(plStride);
this->majorTypeBuff.push_back(typePtr);
this->subTypeBuff.push_back(subTypePtr);
this->widthBuff.push_back(width);
this->heightBuff.push_back(height);
this->isCompressedBuff.push_back(isComp);
SafeRelease(&pCurrentType);
}
void MfVideoIn::PopFrontMetaDataBuff()
{
if(this->plStrideBuff.size()>0) this->plStrideBuff.erase(this->plStrideBuff.begin());
if(this->majorTypeBuff.size()>0) this->majorTypeBuff.erase(this->majorTypeBuff.begin());
this->subTypeBuff.erase(this->subTypeBuff.begin());
this->widthBuff.erase(this->widthBuff.begin());
this->heightBuff.erase(this->heightBuff.begin());
this->isCompressedBuff.erase(this->isCompressedBuff.begin());
}
void MfVideoIn::ReadFramesInternal()
{
//Check if reader is ready
if(this->reader == NULL)
throw std::runtime_error("Reader not ready for this source");
HRESULT hr = S_OK;
IMFSample *pSample = NULL;
DWORD streamIndex=0, flags=0;
LONGLONG llTimeStamp=0;
if(this->asyncMode)
{
if(!this->readerCallback->GetPending())
{
hr = this->reader->ReadSample(
MF_SOURCE_READER_ANY_STREAM, // Stream index.
0, NULL, NULL, NULL, NULL
);
this->readerCallback->SetPending();
}
HRESULT hrStatus = S_OK;
DWORD dwStreamIndex = 0;
DWORD dwStreamFlags = 0;
LONGLONG llTimestamp = 0;
char *frame = NULL;
DWORD buffLen = 0;
int found = this->readerCallback->GetFrame(&hrStatus, &dwStreamIndex,
&dwStreamFlags, &llTimestamp, &frame, &buffLen);
//cout << (long) frame << "," << buffLen << endl;
if(found)
{
if((frame == NULL) != (buffLen == 0))
throw runtime_error("Frame buffer corruption detected");
EnterCriticalSection(&lock);
//Ensure the buffer does not overflow
while(this->frameBuff.size() >= this->maxBuffSize)
{