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videoInput.cpp
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videoInput.cpp
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//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//THE SOFTWARE.
#include <iostream>
#include "msw/videoInput/videoInput.h"
#include "cinder/msw/CinderMsw.h"
#include <tchar.h>
//Include Directshow stuff here so we don't worry about needing all the h files.
#include <DShow.h>
//#include "streams.h"
#pragma include_alias( "dxtrans.h", "qedit.h" )
#define __IDxtCompositor_INTERFACE_DEFINED__
#define __IDxtAlphaSetter_INTERFACE_DEFINED__
#define __IDxtJpeg_INTERFACE_DEFINED__
#define __IDxtKey_INTERFACE_DEFINED__
#include <uuids.h>
#include <vector>
#include <Aviriff.h>
#include <Windows.h>
//for threading
#include <process.h>
#if defined( __clang__ ) || defined( __GCC__ )
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
#elif defined( _MSC_VER )
#pragma warning( push )
#pragma warning( disable : 4100)
#endif
// Due to a missing qedit.h in recent Platform SDKs, we've replicated the relevant contents here
// #include <qedit.h>
MIDL_INTERFACE("0579154A-2B53-4994-B0D0-E773148EFF85")
ISampleGrabberCB : public IUnknown
{
public:
virtual HRESULT STDMETHODCALLTYPE SampleCB(
double SampleTime,
IMediaSample *pSample) = 0;
virtual HRESULT STDMETHODCALLTYPE BufferCB(
double SampleTime,
BYTE *pBuffer,
long BufferLen) = 0;
};
MIDL_INTERFACE("6B652FFF-11FE-4fce-92AD-0266B5D7C78F")
ISampleGrabber : public IUnknown
{
public:
virtual HRESULT STDMETHODCALLTYPE SetOneShot(
BOOL OneShot) = 0;
virtual HRESULT STDMETHODCALLTYPE SetMediaType(
const AM_MEDIA_TYPE *pType) = 0;
virtual HRESULT STDMETHODCALLTYPE GetConnectedMediaType(
AM_MEDIA_TYPE *pType) = 0;
virtual HRESULT STDMETHODCALLTYPE SetBufferSamples(
BOOL BufferThem) = 0;
virtual HRESULT STDMETHODCALLTYPE GetCurrentBuffer(
/* [out][in] */ long *pBufferSize,
/* [out] */ long *pBuffer) = 0;
virtual HRESULT STDMETHODCALLTYPE GetCurrentSample(
/* [retval][out] */ IMediaSample **ppSample) = 0;
virtual HRESULT STDMETHODCALLTYPE SetCallback(
ISampleGrabberCB *pCallback,
long WhichMethodToCallback) = 0;
};
EXTERN_C const CLSID CLSID_SampleGrabber;
EXTERN_C const IID IID_ISampleGrabber;
EXTERN_C const CLSID CLSID_NullRenderer;
/////////////////////////// HANDY FUNCTIONS /////////////////////////////
void MyFreeMediaType(AM_MEDIA_TYPE& mt){
if (mt.cbFormat != 0)
{
CoTaskMemFree((PVOID)mt.pbFormat);
mt.cbFormat = 0;
mt.pbFormat = NULL;
}
if (mt.pUnk != NULL)
{
// Unecessary because pUnk should not be used, but safest.
mt.pUnk->Release();
mt.pUnk = NULL;
}
}
void MyDeleteMediaType(AM_MEDIA_TYPE *pmt)
{
if (pmt != NULL)
{
MyFreeMediaType(*pmt);
CoTaskMemFree(pmt);
}
}
////////////////////////////// CALLBACK ////////////////////////////////
//Callback class
class SampleGrabberCallback : public ISampleGrabberCB{
public:
//------------------------------------------------
SampleGrabberCallback(){
InitializeCriticalSection(&critSection);
freezeCheck = 0;
bufferSetup = false;
newFrame = false;
latestBufferLength = 0;
hEvent = CreateEvent(NULL, true, false, NULL);
}
//------------------------------------------------
~SampleGrabberCallback(){
ptrBuffer = NULL;
DeleteCriticalSection(&critSection);
CloseHandle(hEvent);
if(bufferSetup){
delete pixels;
}
}
//------------------------------------------------
bool setupBuffer(int numBytesIn){
if(bufferSetup){
return false;
}else{
numBytes = numBytesIn;
pixels = new unsigned char[numBytes];
bufferSetup = true;
newFrame = false;
latestBufferLength = 0;
}
return true;
}
//------------------------------------------------
STDMETHODIMP_(ULONG) AddRef() { return 1; }
STDMETHODIMP_(ULONG) Release() { return 2; }
//------------------------------------------------
STDMETHODIMP QueryInterface(REFIID riid, void **ppvObject){
*ppvObject = static_cast<ISampleGrabberCB*>(this);
return S_OK;
}
//This method is meant to have less overhead
//------------------------------------------------
STDMETHODIMP SampleCB(double Time, IMediaSample *pSample){
if(WaitForSingleObject(hEvent, 0) == WAIT_OBJECT_0) return S_OK;
HRESULT hr = pSample->GetPointer(&ptrBuffer);
if(hr == S_OK){
latestBufferLength = pSample->GetActualDataLength();
if(latestBufferLength == numBytes){
EnterCriticalSection(&critSection);
memcpy(pixels, ptrBuffer, latestBufferLength);
newFrame = true;
freezeCheck = 1;
LeaveCriticalSection(&critSection);
SetEvent(hEvent);
}else{
printf("ERROR: SampleCB() - buffer sizes do not match\n");
}
}
return S_OK;
}
//This method is meant to have more overhead
STDMETHODIMP BufferCB(double Time, BYTE *pBuffer, long BufferLen){
return E_NOTIMPL;
}
int freezeCheck;
int latestBufferLength;
int numBytes;
bool newFrame;
bool bufferSetup;
unsigned char * pixels;
unsigned char * ptrBuffer;
CRITICAL_SECTION critSection;
HANDLE hEvent;
};
////////////////////////////// VIDEO DEVICE ////////////////////////////////
// ----------------------------------------------------------------------
// Should this class also be the callback?
//
// ----------------------------------------------------------------------
videoDevice::videoDevice(){
pCaptureGraph = NULL; // Capture graph builder object
pGraph = NULL; // Graph builder object
pControl = NULL; // Media control object
pVideoInputFilter = NULL; // Video Capture filter
pGrabber = NULL; // Grabs frame
pDestFilter = NULL; // Null Renderer Filter
pGrabberF = NULL; // Grabber Filter
pMediaEvent = NULL;
streamConf = NULL;
pAmMediaType = NULL;
//This is our callback class that processes the frame.
sgCallback = new SampleGrabberCallback();
sgCallback->newFrame = false;
//Default values for capture type
videoType = MEDIASUBTYPE_RGB24;
connection = PhysConn_Video_Composite;
storeConn = 0;
videoSize = 0;
width = 0;
height = 0;
tryWidth = 0;
tryHeight = 0;
nFramesForReconnect= 100;
nFramesRunning = 0;
myID = -1;
tryDiffSize = false;
useCrossbar = false;
readyToCapture = false;
isFrozen = false;
sizeSet = false;
setupStarted = false;
specificFormat = false;
autoReconnect = false;
requestedFrameTime = -1;
memset(wDeviceName, 0, sizeof(WCHAR) * 255);
memset(nDeviceName, 0, sizeof(char) * 255);
}
// ----------------------------------------------------------------------
// The only place we are doing new
//
// ----------------------------------------------------------------------
void videoDevice::setSize(int w, int h){
if(sizeSet){
if(verbose)printf("SETUP: Error device size should not be set more than once \n");
}
else
{
width = w;
height = h;
videoSize = w*h*3;
sizeSet = true;
pixels = new unsigned char[videoSize];
pBuffer = new char[videoSize];
memset(pixels, 0 , videoSize);
sgCallback->setupBuffer(videoSize);
}
}
// ----------------------------------------------------------------------
// Borrowed from the SDK, use it to take apart the graph from
// the capture device downstream to the null renderer
// ----------------------------------------------------------------------
void videoDevice::NukeDownstream(IBaseFilter *pBF){
IPin *pP, *pTo;
ULONG u;
IEnumPins *pins = NULL;
PIN_INFO pininfo;
HRESULT hr = pBF->EnumPins(&pins);
pins->Reset();
while (hr == NOERROR)
{
hr = pins->Next(1, &pP, &u);
if (hr == S_OK && pP)
{
pP->ConnectedTo(&pTo);
if (pTo)
{
hr = pTo->QueryPinInfo(&pininfo);
if (hr == NOERROR)
{
if (pininfo.dir == PINDIR_INPUT)
{
NukeDownstream(pininfo.pFilter);
pGraph->Disconnect(pTo);
pGraph->Disconnect(pP);
pGraph->RemoveFilter(pininfo.pFilter);
}
pininfo.pFilter->Release();
pininfo.pFilter = NULL;
}
pTo->Release();
}
pP->Release();
}
}
if (pins) pins->Release();
}
// ----------------------------------------------------------------------
// Also from SDK
// ----------------------------------------------------------------------
void videoDevice::destroyGraph(){
HRESULT hr = NOERROR;
while (hr == NOERROR)
{
IEnumFilters * pEnum = 0;
ULONG cFetched;
// We must get the enumerator again every time because removing a filter from the graph
// invalidates the enumerator. We always get only the first filter from each enumerator.
hr = pGraph->EnumFilters(&pEnum);
if (FAILED(hr)) { if(verbose)printf("SETUP: pGraph->EnumFilters() failed. \n"); return; }
IBaseFilter * pFilter = NULL;
if (pEnum->Next(1, &pFilter, &cFetched) == S_OK)
{
FILTER_INFO FilterInfo={0};
hr = pFilter->QueryFilterInfo(&FilterInfo);
FilterInfo.pGraph->Release();
if(verbose)printf("SETUP: removing filter %S...\n", FilterInfo.achName);
hr = pGraph->RemoveFilter(pFilter);
if (FAILED(hr)) { if(verbose)printf("SETUP: pGraph->RemoveFilter() failed. \n"); return; }
if(verbose)printf("SETUP: filter removed %S \n", FilterInfo.achName);
pFilter->Release();
pFilter = NULL;
}
else break;
pEnum->Release();
pEnum = NULL;
}
}
// ----------------------------------------------------------------------
// Our deconstructor, attempts to tear down graph and release filters etc
// Does checking to make sure it only is freeing if it needs to
// Probably could be a lot cleaner! :)
// ----------------------------------------------------------------------
videoDevice::~videoDevice(){
if(setupStarted){ if(verbose)printf("\nSETUP: Disconnecting device %i\n", myID); }
else{
if(sgCallback){
sgCallback->Release();
delete sgCallback;
}
return;
}
HRESULT HR = NULL;
//Stop the callback and free it
if( (sgCallback) && (pGrabber) )
{
pGrabber->SetCallback(NULL, 1);
if(verbose)printf("SETUP: freeing Grabber Callback\n");
sgCallback->Release();
//delete our pixels
if(sizeSet){
delete[] pixels;
delete[] pBuffer;
}
delete sgCallback;
}
//Check to see if the graph is running, if so stop it.
if( (pControl) )
{
HR = pControl->Pause();
if (FAILED(HR)) if(verbose)printf("ERROR - Could not pause pControl\n");
HR = pControl->Stop();
if (FAILED(HR)) if(verbose)printf("ERROR - Could not stop pControl\n");
}
//Disconnect filters from capture device
if( (pVideoInputFilter) )NukeDownstream(pVideoInputFilter);
//Release and zero pointers to our filters etc
if( (pDestFilter) ){ if(verbose)printf("SETUP: freeing Renderer \n");
(pDestFilter)->Release();
(pDestFilter) = 0;
}
if( (pVideoInputFilter) ){ if(verbose)printf("SETUP: freeing Capture Source \n");
(pVideoInputFilter)->Release();
(pVideoInputFilter) = 0;
}
if( (pGrabberF) ){ if(verbose)printf("SETUP: freeing Grabber Filter \n");
(pGrabberF)->Release();
(pGrabberF) = 0;
}
if( (pGrabber) ){ if(verbose)printf("SETUP: freeing Grabber \n");
(pGrabber)->Release();
(pGrabber) = 0;
}
if( (pControl) ){ if(verbose)printf("SETUP: freeing Control \n");
(pControl)->Release();
(pControl) = 0;
}
if( (pMediaEvent) ){ if(verbose)printf("SETUP: freeing Media Event \n");
(pMediaEvent)->Release();
(pMediaEvent) = 0;
}
if( (streamConf) ){ if(verbose)printf("SETUP: freeing Stream \n");
(streamConf)->Release();
(streamConf) = 0;
}
if( (pAmMediaType) ){ if(verbose)printf("SETUP: freeing Media Type \n");
MyDeleteMediaType(pAmMediaType);
}
if((pMediaEvent)){
if(verbose)printf("SETUP: freeing Media Event \n");
(pMediaEvent)->Release();
(pMediaEvent) = 0;
}
//Destroy the graph
if( (pGraph) )destroyGraph();
//Release and zero our capture graph and our main graph
if( (pCaptureGraph) ){ if(verbose)printf("SETUP: freeing Capture Graph \n");
(pCaptureGraph)->Release();
(pCaptureGraph) = 0;
}
if( (pGraph) ){ if(verbose)printf("SETUP: freeing Main Graph \n");
(pGraph)->Release();
(pGraph) = 0;
}
//delete our pointers
delete pDestFilter;
delete pVideoInputFilter;
delete pGrabberF;
delete pGrabber;
delete pControl;
delete streamConf;
delete pMediaEvent;
delete pCaptureGraph;
delete pGraph;
if(verbose)printf("SETUP: Device %i disconnected and freed\n\n",myID);
}
////////////////////////////// VIDEO INPUT ////////////////////////////////
//////////////////////////// PUBLIC METHODS ///////////////////////////////
// ----------------------------------------------------------------------
// Constructor - creates instances of videoDevice and adds the various
// media subtypes to check.
// ----------------------------------------------------------------------
void makeGUID( GUID *guid, unsigned long Data1, unsigned short Data2, unsigned short Data3,
unsigned char b0, unsigned char b1, unsigned char b2, unsigned char b3,
unsigned char b4, unsigned char b5, unsigned char b6, unsigned char b7 )
{
guid->Data1 = Data1;
guid->Data2 = Data2;
guid->Data3 = Data3;
guid->Data4[0] = b0; guid->Data4[1] = b1; guid->Data4[2] = b2; guid->Data4[3] = b3;
guid->Data4[4] = b4; guid->Data4[5] = b5; guid->Data4[6] = b6; guid->Data4[7] = b7;
}
videoInput::videoInput(){
//start com
comInit();
devicesFound = 0;
callbackSetCount = 0;
bCallback = true;
mIsFrozen = false;
//setup a max no of device objects
for(int i=0; i<VI_MAX_CAMERAS; i++) VDList[i] = new videoDevice();
if(verbose)printf("\n***** VIDEOINPUT LIBRARY - %2.04f - TFW07 *****\n\n",VI_VERSION);
//added for the pixelink firewire camera
// MEDIASUBTYPE_Y800 = (GUID)FOURCCMap(FCC('Y800'));
makeGUID( &MEDIASUBTYPE_Y800, 0x30303859, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71 );
makeGUID( &MEDIASUBTYPE_Y8, 0x20203859, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71 );
makeGUID( &MEDIASUBTYPE_GREY, 0x59455247, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71 );
//The video types we support
//in order of preference
mediaSubtypes[0] = MEDIASUBTYPE_RGB24;
mediaSubtypes[1] = MEDIASUBTYPE_RGB32;
mediaSubtypes[2] = MEDIASUBTYPE_RGB555;
mediaSubtypes[3] = MEDIASUBTYPE_RGB565;
mediaSubtypes[4] = MEDIASUBTYPE_YUY2;
mediaSubtypes[5] = MEDIASUBTYPE_YVYU;
mediaSubtypes[6] = MEDIASUBTYPE_YUYV;
mediaSubtypes[7] = MEDIASUBTYPE_IYUV;
mediaSubtypes[8] = MEDIASUBTYPE_UYVY;
mediaSubtypes[9] = MEDIASUBTYPE_YV12;
mediaSubtypes[10] = MEDIASUBTYPE_YVU9;
mediaSubtypes[11] = MEDIASUBTYPE_Y411;
mediaSubtypes[12] = MEDIASUBTYPE_Y41P;
mediaSubtypes[13] = MEDIASUBTYPE_Y211;
mediaSubtypes[14] = MEDIASUBTYPE_AYUV;
//non standard
mediaSubtypes[15] = MEDIASUBTYPE_Y800;
mediaSubtypes[16] = MEDIASUBTYPE_Y8;
mediaSubtypes[17] = MEDIASUBTYPE_GREY;
//The video formats we support
formatTypes[VI_NTSC_M] = AnalogVideo_NTSC_M;
formatTypes[VI_NTSC_M_J] = AnalogVideo_NTSC_M_J;
formatTypes[VI_NTSC_433] = AnalogVideo_NTSC_433;
formatTypes[VI_PAL_B] = AnalogVideo_PAL_B;
formatTypes[VI_PAL_D] = AnalogVideo_PAL_D;
formatTypes[VI_PAL_G] = AnalogVideo_PAL_G;
formatTypes[VI_PAL_H] = AnalogVideo_PAL_H;
formatTypes[VI_PAL_I] = AnalogVideo_PAL_I;
formatTypes[VI_PAL_M] = AnalogVideo_PAL_M;
formatTypes[VI_PAL_N] = AnalogVideo_PAL_N;
formatTypes[VI_PAL_NC] = AnalogVideo_PAL_N_COMBO;
formatTypes[VI_SECAM_B] = AnalogVideo_SECAM_B;
formatTypes[VI_SECAM_D] = AnalogVideo_SECAM_D;
formatTypes[VI_SECAM_G] = AnalogVideo_SECAM_G;
formatTypes[VI_SECAM_H] = AnalogVideo_SECAM_H;
formatTypes[VI_SECAM_K] = AnalogVideo_SECAM_K;
formatTypes[VI_SECAM_K1] = AnalogVideo_SECAM_K1;
formatTypes[VI_SECAM_L] = AnalogVideo_SECAM_L;
propBrightness = VideoProcAmp_Brightness;
propContrast = VideoProcAmp_Contrast;
propHue = VideoProcAmp_Hue;
propSaturation = VideoProcAmp_Saturation;
propSharpness = VideoProcAmp_Sharpness;
propGamma = VideoProcAmp_Gamma;
propColorEnable = VideoProcAmp_ColorEnable;
propWhiteBalance = VideoProcAmp_WhiteBalance;
propBacklightCompensation = VideoProcAmp_BacklightCompensation;
propGain = VideoProcAmp_Gain;
propPan = CameraControl_Pan;
propTilt = CameraControl_Tilt;
propRoll = CameraControl_Roll;
propZoom = CameraControl_Zoom;
propExposure = CameraControl_Exposure;
propIris = CameraControl_Iris;
propFocus = CameraControl_Focus;
}
// ----------------------------------------------------------------------
// static - set whether messages get printed to console or not
//
// ----------------------------------------------------------------------
void videoInput::setVerbose(bool _verbose){
verbose = _verbose;
}
// ----------------------------------------------------------------------
// change to use callback or regular capture
// callback tells you when a new frame has arrived
// but non-callback won't - but is single threaded
// ----------------------------------------------------------------------
void videoInput::setUseCallback(bool useCallback){
if(callbackSetCount == 0){
bCallback = useCallback;
callbackSetCount = 1;
}else{
printf("ERROR: setUseCallback can only be called before setup\n");
}
}
// ----------------------------------------------------------------------
// Set the requested framerate - no guarantee you will get this
//
// ----------------------------------------------------------------------
void videoInput::setIdealFramerate(int deviceNumber, int idealFramerate){
if(deviceNumber >= VI_MAX_CAMERAS || VDList[deviceNumber]->readyToCapture) return;
if( idealFramerate > 0 ){
VDList[deviceNumber]->requestedFrameTime = (unsigned long)(10000000 / idealFramerate);
}
}
// ----------------------------------------------------------------------
// Set the requested framerate - no guarantee you will get this
//
// ----------------------------------------------------------------------
void videoInput::setAutoReconnectOnFreeze(int deviceNumber, bool doReconnect, int numMissedFramesBeforeReconnect){
if(deviceNumber >= VI_MAX_CAMERAS) return;
VDList[deviceNumber]->autoReconnect = doReconnect;
VDList[deviceNumber]->nFramesForReconnect = numMissedFramesBeforeReconnect;
}
// ----------------------------------------------------------------------
// Setup a device with the default settings
//
// ----------------------------------------------------------------------
bool videoInput::setupDevice(int deviceNumber){
if(deviceNumber >= VI_MAX_CAMERAS || VDList[deviceNumber]->readyToCapture) return false;
if(setup(deviceNumber))return true;
return false;
}
// ----------------------------------------------------------------------
// Setup a device with the default size but specify input type
//
// ----------------------------------------------------------------------
bool videoInput::setupDevice(int deviceNumber, int connection){
if(deviceNumber >= VI_MAX_CAMERAS || VDList[deviceNumber]->readyToCapture) return false;
setPhyCon(deviceNumber, connection);
if(setup(deviceNumber))return true;
return false;
}
// ----------------------------------------------------------------------
// Setup a device with the default connection but specify size
//
// ----------------------------------------------------------------------
bool videoInput::setupDevice(int deviceNumber, int w, int h){
if(deviceNumber >= VI_MAX_CAMERAS || VDList[deviceNumber]->readyToCapture) return false;
setAttemptCaptureSize(deviceNumber,w,h);
if(setup(deviceNumber))return true;
return false;
}
// ----------------------------------------------------------------------
// Setup a device with specific size and connection
//
// ----------------------------------------------------------------------
bool videoInput::setupDevice(int deviceNumber, int w, int h, int connection){
if(deviceNumber >= VI_MAX_CAMERAS || VDList[deviceNumber]->readyToCapture) return false;
setAttemptCaptureSize(deviceNumber,w,h);
setPhyCon(deviceNumber, connection);
if(setup(deviceNumber))return true;
return false;
}
// ----------------------------------------------------------------------
// Setup the default video format of the device
// Must be called after setup!
// See #define formats in header file (eg VI_NTSC_M )
//
// ----------------------------------------------------------------------
bool videoInput::setFormat(int deviceNumber, int format){
if(deviceNumber >= VI_MAX_CAMERAS || !VDList[deviceNumber]->readyToCapture) return false;
bool returnVal = false;
if(format >= 0 && format < VI_NUM_FORMATS){
VDList[deviceNumber]->formatType = formatTypes[format];
VDList[deviceNumber]->specificFormat = true;
if(VDList[deviceNumber]->specificFormat){
HRESULT hr = getDevice(&VDList[deviceNumber]->pVideoInputFilter, deviceNumber, VDList[deviceNumber]->wDeviceName, VDList[deviceNumber]->nDeviceName);
if(hr != S_OK){
return false;
}
IAMAnalogVideoDecoder *pVideoDec = NULL;
hr = VDList[deviceNumber]->pCaptureGraph->FindInterface(NULL, &MEDIATYPE_Video, VDList[deviceNumber]->pVideoInputFilter, IID_IAMAnalogVideoDecoder, (void **)&pVideoDec);
//in case the settings window some how freed them first
if(VDList[deviceNumber]->pVideoInputFilter)VDList[deviceNumber]->pVideoInputFilter->Release();
if(VDList[deviceNumber]->pVideoInputFilter)VDList[deviceNumber]->pVideoInputFilter = NULL;
if(FAILED(hr)){
printf("SETUP: couldn't set requested format\n");
}else{
long lValue = 0;
hr = pVideoDec->get_AvailableTVFormats(&lValue);
if( SUCCEEDED(hr) && (lValue & VDList[deviceNumber]->formatType) )
{
hr = pVideoDec->put_TVFormat(VDList[deviceNumber]->formatType);
if( FAILED(hr) ){
printf("SETUP: couldn't set requested format\n");
}else{
returnVal = true;
}
}
pVideoDec->Release();
pVideoDec = NULL;
}
}
}
return returnVal;
}
// ----------------------------------------------------------------------
// Our static function for returning device names - thanks Peter!
// Must call listDevices first.
//
// ----------------------------------------------------------------------
char videoInput::deviceNames[VI_MAX_CAMERAS][255]={{0}};
char * videoInput::getDeviceName(int deviceID){
if( deviceID >= VI_MAX_CAMERAS ){
return NULL;
}
return deviceNames[deviceID];
}
// ----------------------------------------------------------------------
// Our static function for finding num devices available etc
//
// ----------------------------------------------------------------------
int videoInput::listDevices(bool silent){
//COM Library Intialization
comInit();
if(!silent)printf("\nVIDEOINPUT SPY MODE!\n\n");
ICreateDevEnum *pDevEnum = NULL;
IEnumMoniker *pEnum = NULL;
int deviceCounter = 0;
HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL,
CLSCTX_INPROC_SERVER, IID_ICreateDevEnum,
reinterpret_cast<void**>(&pDevEnum));
if (SUCCEEDED(hr))
{
// Create an enumerator for the video capture category.
hr = pDevEnum->CreateClassEnumerator(
CLSID_VideoInputDeviceCategory,
&pEnum, 0);
if(hr == S_OK){
if(!silent)printf("SETUP: Looking For Capture Devices\n");
IMoniker *pMoniker = NULL;
while (pEnum->Next(1, &pMoniker, NULL) == S_OK){
IPropertyBag *pPropBag;
hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag,
(void**)(&pPropBag));
if (FAILED(hr)){
pMoniker->Release();
continue; // Skip this one, maybe the next one will work.
}
// Find the description or friendly name.
VARIANT varName;
VariantInit(&varName);
hr = pPropBag->Read(L"Description", &varName, 0);
if (FAILED(hr)) hr = pPropBag->Read(L"FriendlyName", &varName, 0);
if (SUCCEEDED(hr)){
hr = pPropBag->Read(L"FriendlyName", &varName, 0);
int count = 0;
int maxLen = sizeof(deviceNames[0])/sizeof(deviceNames[0][0]) - 2;
while( varName.bstrVal[count] != 0x00 && count < maxLen) {
deviceNames[deviceCounter][count] = (char)varName.bstrVal[count];
count++;
}
deviceNames[deviceCounter][count] = 0;
if(!silent)printf("SETUP: %i) %s \n",deviceCounter, deviceNames[deviceCounter]);
}
pPropBag->Release();
pPropBag = NULL;
pMoniker->Release();
pMoniker = NULL;
deviceCounter++;
}
pDevEnum->Release();
pDevEnum = NULL;
pEnum->Release();
pEnum = NULL;
}
if(!silent)printf("SETUP: %i Device(s) found\n\n", deviceCounter);
}
comUnInit();
return deviceCounter;
}
// ----------------------------------------------------------------------
//
//
// ----------------------------------------------------------------------
int videoInput::getWidth(int id){
if(isDeviceSetup(id))
{
return VDList[id] ->width;
}
return 0;
}
// ----------------------------------------------------------------------
//
//
// ----------------------------------------------------------------------
int videoInput::getHeight(int id){
if(isDeviceSetup(id))
{
return VDList[id] ->height;
}
return 0;
}
// ----------------------------------------------------------------------
//
//
// ----------------------------------------------------------------------
int videoInput::getSize(int id){
if(isDeviceSetup(id))
{
return VDList[id] ->videoSize;
}
return 0;
}
// ----------------------------------------------------------------------
// Uses a supplied buffer
// ----------------------------------------------------------------------
bool videoInput::getPixels(int id, unsigned char * dstBuffer, bool flipRedAndBlue, bool flipImage){
bool success = false;
if(isDeviceSetup(id)){
if(bCallback){
//callback capture
DWORD result = WaitForSingleObject(VDList[id]->sgCallback->hEvent, 1000);
if( result != WAIT_OBJECT_0) return false;
//double paranoia - mutexing with both event and critical section
EnterCriticalSection(&VDList[id]->sgCallback->critSection);
unsigned char * src = VDList[id]->sgCallback->pixels;
unsigned char * dst = dstBuffer;
int height = VDList[id]->height;
int width = VDList[id]->width;
processPixels(src, dst, width, height, flipRedAndBlue, flipImage);
VDList[id]->sgCallback->newFrame = false;
LeaveCriticalSection(&VDList[id]->sgCallback->critSection);
ResetEvent(VDList[id]->sgCallback->hEvent);
success = true;
}
else{
//regular capture method
long bufferSize = VDList[id]->videoSize;
HRESULT hr = VDList[id]->pGrabber->GetCurrentBuffer(&bufferSize, (long *)VDList[id]->pBuffer);
if(hr==S_OK){
int numBytes = VDList[id]->videoSize;
if (numBytes == bufferSize){
unsigned char * src = (unsigned char * )VDList[id]->pBuffer;
unsigned char * dst = dstBuffer;
int height = VDList[id]->height;
int width = VDList[id]->width;
processPixels(src, dst, width, height, flipRedAndBlue, flipImage);
success = true;
}else{
if(verbose)printf("ERROR: GetPixels() - bufferSizes do not match!\n");
}
}else{
if(verbose)printf("ERROR: GetPixels() - Unable to grab frame for device %i\n", id);
}
}
}
return success;
}
// ----------------------------------------------------------------------
// Returns a buffer
// ----------------------------------------------------------------------
unsigned char * videoInput::getPixels(int id, bool flipRedAndBlue, bool flipImage){
if(isDeviceSetup(id)){
getPixels(id, VDList[id]->pixels, flipRedAndBlue, flipImage);
}
return VDList[id]->pixels;
}
// ----------------------------------------------------------------------
//
//
// ----------------------------------------------------------------------
bool videoInput::isFrameNew(int id){
if(!isDeviceSetup(id)) return false;
if(!bCallback)return true;