我有一个相当简单的应用程序,其中包含以下内容:
context->mFaceTracker = FTCreateFaceTracker();
hr = context->mFaceTracker->Initialize( &mVideoCameraConfig, &mDepthCameraConfig, NULL, NULL );
它工作正常并返回 S_OK 并且 mFaceTracker (据我所知)已正确初始化。但是,下一行是:
hr = context->mFaceTracker->CreateFTResult( &context->mFTResult );
它总是返回 FT_ERROR_UNINITIALIZED,不分配指针,让我感到困惑。我已经尝试了许多不同的策略来使其工作,从更改设备和检测器的线程工作方式,到将我的 FTcontext 对象从一个类更改为一个结构以匹配样本,所有这些都没有成功。Kinect SDK 示例都可以正常工作,但尝试在我自己的应用程序中使用它们似乎并没有,尽管我密切反映了它们如何初始化设备和面部跟踪器。我很好奇是否有其他人在初始化 IFTFaceTracker 或 IFTResult 时遇到过这个或类似的问题。另外,我很好奇除了测试 Initialize() 返回的 HRESULT 之外,我还能如何测试 IFTFaceTracker 的正确初始化。提前致谢,
=== 编辑
我有一些要求更多代码的请求。它建立在 Cinder 之上,并为 Cinder 使用这个块:https ://github.com/BanTheRewind/Cinder-KinectSdk
我不能发布所有代码,但我至少在这里发布了大部分相关的 Kinect 初始化代码:
void Kinect::start( const DeviceOptions &deviceOptions )
{
if ( !mCapture ) {
// Copy device options
mDeviceOptions = deviceOptions;
string deviceId = mDeviceOptions.getDeviceId();
int32_t index = mDeviceOptions.getDeviceIndex();
// Clamp device index
if ( index >= 0 ) {
index = math<int32_t>::clamp( index, 0, math<int32_t>::max( getDeviceCount() - 1, 0 ) );
}
// Initialize device instance
long hr = S_OK;
if ( index >= 0 ) {
hr = NuiCreateSensorByIndex( index, &mSensor );
if ( FAILED( hr ) ) {
trace( "Unable to create device instance " + toString( index ) + ": " );
error( hr );
return;
}
} else if ( deviceId.length() > 0 ) {
_bstr_t id = deviceId.c_str();
hr = NuiCreateSensorById( id, &mSensor );
if ( FAILED( hr ) ) {
trace( "Unable to create device instance " + deviceId + ":" );
error( hr );
return;
}
} else {
trace( "Invalid device name or index." );
return;
}
// Check device
hr = mSensor != 0 ? mSensor->NuiStatus() : E_NUI_NOTCONNECTED;
if ( hr == E_NUI_NOTCONNECTED ) {
error( hr );
return;
}
// Get device name and index
if ( mSensor != 0 ) {
mDeviceOptions.setDeviceIndex( mSensor->NuiInstanceIndex() );
BSTR id = ::SysAllocString( mSensor->NuiDeviceConnectionId() );
_bstr_t idStr( id );
if ( idStr.length() > 0 ) {
std::string str( idStr );
mDeviceOptions.setDeviceId( str );
}
::SysFreeString( id );
} else {
index = -1;
deviceId = "";
}
flags |= NUI_INITIALIZE_FLAG_USES_COLOR;
}
hr = mSensor->NuiInitialize( flags );
if ( FAILED( hr ) ) {
trace( "Unable to initialize device " + mDeviceOptions.getDeviceId() + ":" );
error( hr );
return;
}
hr = mSensor->NuiSkeletonTrackingEnable( 0, flags );
if ( FAILED( hr ) ) {
trace( "Unable to initialize skeleton tracking for device " + mDeviceOptions.getDeviceId() + ": " );
error( hr );
return;
}
mIsSkeletonDevice = true;
mThread = CreateThread(NULL, 0, &Kinect::StaticThread, (PVOID)this, 0, 0);
}
}
DWORD WINAPI Kinect::StaticThread(PVOID lpParam)
{
Kinect* device = static_cast<Kinect*>(lpParam);
if (device)
{
return device->run();
}
return 0;
}
void run() {
if(mSensor) {
if(mEnabledFaceTracking)
{
if(mNeedFaceTracker) {
mFaceTracker = new FaceTracker(
mDeviceOptions.getVideoSize().x,
mDeviceOptions.getVideoSize().y,
mDeviceOptions.getDepthSize().x,
mDeviceOptions.getDepthSize().y,
1.0,
1 );
mNeedFaceTracker = false;
}
// make sure we have both color && depth buffers to work with
if(newDepth || newVideo)
{
FT_SENSOR_DATA sensorData(mFTColorImage, mFTDepthImage);
FT_VECTOR3D hint[2]; // this is initialized elsewhere
mFaceTracker->checkFaces( (NUI_SKELETON_FRAME*) &skeletonFrame, mFTColorImage, mFTDepthImage, 1.0, 0);
if(mFaceTracker->getNumFaces() > 0) {
cout << " we have a face " << mFaceTracker->getNumFaces() << endl;
mNewFaceTrackData = true;
mFaceData.clear();
for( int i = 0; i < mFaceTracker->getNumFaces(); i++) {
Face newFace;
mFaceTracker->getProjectedShape(0, newFace.scale, newFace.rotation, newFace.transform, newFace.screenPositions);
mFaceData.push_back(newFace);
}
}
}
}
Sleep( 8 );
}
}