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Merge pull request #19707 from AsyaPronina:asyadev/upstream_fixes_from_release

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This commit is contained in:
Alexander Alekhin 2021-03-12 14:27:41 +00:00
commit 4c1d5840bb
3 changed files with 23 additions and 12 deletions
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12
modules/gapi/include/opencv2/gapi/media.hpp
View File

@ -30,9 +30,21 @@ public:
View access(Access) const;
cv::GFrameDesc desc() const;
// Cast underlying MediaFrame adapter to the particular adapter type,
// return nullptr if underlying type is different
template<typename T> T* get() const
{
static_assert(std::is_base_of<IAdapter, T>::value,
"T is not derived from cv::MediaFrame::IAdapter!");
auto* adapter = getAdapter();
GAPI_Assert(adapter != nullptr);
return dynamic_cast<T*>(adapter);
}
private:
struct Priv;
std::shared_ptr<Priv> m;
IAdapter* getAdapter() const;
};
template<class T, class... Args>

4
modules/gapi/src/api/media.cpp
View File

@ -26,6 +26,10 @@ cv::MediaFrame::View cv::MediaFrame::access(Access code) const {
return m->adapter->access(code);
}
cv::MediaFrame::IAdapter* cv::MediaFrame::getAdapter() const {
return m->adapter.get();
}
cv::MediaFrame::View::View(Ptrs&& ptrs, Strides&& strs, Callback &&cb)
: ptr (std::move(ptrs))
, stride(std::move(strs))

19
modules/gapi/src/backends/ie/giebackend.cpp
View File

@ -126,25 +126,20 @@ inline IE::TensorDesc toIE(const cv::Mat &mat, cv::gapi::ie::TraitAs hint) {
if (sz.dims() == 2 && hint == cv::gapi::ie::TraitAs::IMAGE)
{
// NB: This logic is mainly taken from IE samples
const size_t pixsz = CV_ELEM_SIZE1(mat.type());
const size_t channels = mat.channels();
const size_t height = mat.size().height;
const size_t width = mat.size().width;
const size_t strideH = mat.step.buf[0];
const size_t strideW = mat.step.buf[1];
const size_t strideH = mat.step[0];
const bool is_dense =
strideW == pixsz * channels &&
strideH == strideW * width;
if (!is_dense)
cv::util::throw_error(std::logic_error("Doesn't support conversion"
" from non-dense cv::Mat"));
IE::BlockingDesc bdesc({1, height, width, channels} /* dims */,
{0, 2, 3, 1} /* order for NHWC */,
0 /* offset */,
{0, 0, 0, 0} /* offsets for dims */,
{strideH * height, strideH, channels, 1} /* strides for dims */);
return IE::TensorDesc(toIE(mat.depth()),
IE::SizeVector{1, channels, height, width},
IE::Layout::NHWC);
IE::SizeVector{1, channels, height, width}, bdesc);
}
return IE::TensorDesc(toIE(mat.depth()), toIE(sz), toIELayout(sz.dims()));