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Merge pull request #13694 from dkurt:dnn_ie_async

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Asynchronous API from Intel's Inference Engine (#13694)

* Add forwardAsync for asynchronous mode from Intel's Inference Engine

* Python test for forwardAsync

* Replace Future_Mat to AsyncMat

* Shadow AsyncMat

* Isolate InferRequest callback

* Manage exceptions in Async API of IE
This commit is contained in:
Dmitry Kurtaev
2019-04-19 21:01:19 +03:00
committed by Alexander Alekhin
parent 3abae3c511
commit a5c92c2029
8 changed files with 503 additions and 82 deletions
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modules/dnn/misc/python/pyopencv_dnn.hpp
+47 -1
View File
@@ -2,7 +2,13 @@
typedef dnn::DictValue LayerId;
typedef std::vector<dnn::MatShape> vector_MatShape;
typedef std::vector<std::vector<dnn::MatShape> > vector_vector_MatShape;
#ifdef CV_CXX11
typedef std::chrono::milliseconds chrono_milliseconds;
typedef std::future_status AsyncMatStatus;
#else
typedef size_t chrono_milliseconds;
typedef size_t AsyncMatStatus;
#endif
template<>
bool pyopencv_to(PyObject *o, dnn::DictValue &dv, const char *name)
@@ -40,6 +46,46 @@ bool pyopencv_to(PyObject *o, std::vector<Mat> &blobs, const char *name) //requi
return pyopencvVecConverter<Mat>::to(o, blobs, ArgInfo(name, false));
}
#ifdef CV_CXX11
template<>
PyObject* pyopencv_from(const std::future<Mat>& f_)
{
std::future<Mat>& f = const_cast<std::future<Mat>&>(f_);
Ptr<cv::dnn::AsyncMat> p(new std::future<Mat>(std::move(f)));
return pyopencv_from(p);
}
template<>
PyObject* pyopencv_from(const std::future_status& status)
{
return pyopencv_from((int)status);
}
template<>
bool pyopencv_to(PyObject* src, std::chrono::milliseconds& dst, const char* name)
{
size_t millis = 0;
if (pyopencv_to(src, millis, name))
{
dst = std::chrono::milliseconds(millis);
return true;
}
else
return false;
}
#else
template<>
PyObject* pyopencv_from(const cv::dnn::AsyncMat&)
{
CV_Error(Error::StsNotImplemented, "C++11 is required.");
return 0;
}
#endif // CV_CXX11
template<typename T>
PyObject* pyopencv_from(const dnn::DictValue &dv)
{