This namespace contains G-API functions, structures, and symbols related to the Streaming execution mode.
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cv::GMat | BGR (const cv::GFrame &in) |
| Gets bgr plane from input frame. More...
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GMat | desync (const GMat &g) |
| Starts a desynchronized branch in the graph. More...
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GFrame | desync (const GFrame &f) |
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| G_API_OP (GY,< GMat(GFrame)>, "org.opencv.streaming.Y") |
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| G_API_OP (GUV,< GMat(GFrame)>, "org.opencv.streaming.UV") |
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| G_TYPED_KERNEL (GSize,< GOpaque< Size >(GMat)>, "org.opencv.streaming.size") |
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| G_TYPED_KERNEL (GSizeR,< GOpaque< Size >(GOpaque< Rect >)>, "org.opencv.streaming.sizeR") |
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| G_TYPED_KERNEL (GSizeMF,< GOpaque< Size >(GFrame)>, "org.opencv.streaming.sizeMF") |
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cv::GKernelPackage | kernels () |
| Create a kernel package object containing kernels and transformations specified in variadic template argument. More...
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template<typename T , typename G > |
cv::GOpaque< T > | meta (G g, const std::string &tag) |
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template<typename G > |
cv::GOpaque< int64_t > | seq_id (G g) |
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template<typename G > |
cv::GOpaque< int64_t > | seqNo (G g) |
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GOpaque< Size > | size (const GMat &src) |
| Gets dimensions from Mat. More...
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GOpaque< Size > | size (const GOpaque< Rect > &r) |
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GOpaque< Size > | size (const GFrame &src) |
| Gets dimensions from MediaFrame. More...
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template<typename G > |
cv::GOpaque< int64_t > | timestamp (G g) |
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GMat | UV (const cv::GFrame &frame) |
| Extracts UV plane from media frame. More...
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GMat | Y (const cv::GFrame &frame) |
| Extracts Y plane from media frame. More...
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This namespace contains G-API functions, structures, and symbols related to the Streaming execution mode.
Some of the operations defined in this namespace (e.g. size(), BGR(), etc.) can be used in the traditional execution mode too.
GMat cv::gapi::streaming::desync |
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const GMat & |
g | ) |
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| cv.gapi.streaming.desync( | g | ) -> | retval |
Starts a desynchronized branch in the graph.
This operation takes a single G-API data object and returns a graph-level "duplicate" of this object.
Operations which use this data object can be desynchronized from the rest of the graph.
This operation has no effect when a GComputation is compiled with regular cv::GComputation::compile(), since cv::GCompiled objects always produce their full output vectors.
This operation only makes sense when a GComputation is compiled in streaming mode with cv::GComputation::compileStreaming(). If this operation is used and there are desynchronized outputs, the user should use a special version of cv::GStreamingCompiled::pull() which produces an array of cv::util::optional<> objects.
- Note
- This feature is highly experimental now and is currently limited to a single GMat/GFrame argument only.