opencv

Open Source Computer Vision Library https://opencv.org/

Dmitry Matveev 2477103707 Merge pull request #15216 from dmatveev:dm/ng-0010-g-api-streaming-api * G-API-NG/Streaming: Introduced a Streaming API Now a GComputation can be compiled in a special "streaming" way and then "played" on a video stream. Currently only VideoCapture is supported as an input source. * G-API-NG/Streaming: added threading & real streaming * G-API-NG/Streaming: Added tests & docs on Copy kernel - Added very simple pipeline tests, not all data types are covered yet (in fact, only GMat is tested now); - Started testing non-OCV backends in the streaming mode; - Added required fixes to Fluid backend, likely it works OK now; - Added required fixes to OCL backend, and now it is likely broken - Also added a UMat-based (OCL) version of Copy kernel * G-API-NG/Streaming: Added own concurrent queue class - Used only if TBB is not available * G-API-NG/Streaming: Fixing various issues - Added missing header to CMakeLists.txt - Fixed various CI issues and warnings * G-API-NG/Streaming: Fixed a compile-time GScalar queue deadlock - GStreamingExecutor blindly created island's input queues for compile-time (value-initialized) GScalars which didn't have any producers, making island actor threads wait there forever * G-API-NG/Streaming: Dropped own version of Copy kernel One was added into master already * G-API-NG/Streaming: Addressed GArray<T> review comments - Added tests on mov() - Removed unnecessary changes in garray.hpp * G-API-NG/Streaming: Added Doxygen comments to new public APIs Also fixed some other comments in the code * G-API-NG/Streaming: Removed debug info, added some comments & renamed vars * G-API-NG/Streaming: Fixed own-vs-cv abstraction leak - Now every island is triggered with own:: (instead of cv::) data objects as inputs; - Changes in Fluid backend required to support cv::Mat/Scalar were reverted; * G-API-NG/Streaming: use holds_alternative<> instead of index/index_of test - Also fixed regression test comments - Also added metadata check comments for GStreamingCompiled * G-API-NG/Streaming: Made start()/stop() more robust - Fixed various possible deadlocks - Unified the shutdown code - Added more tests covering different corner cases on start/stop * G-API-NG/Streaming: Finally fixed Windows crashes In fact the problem hasn't been Windows-only. Island thread popped data from queues without preserving the Cmd objects and without taking the ownership over data acquired so when islands started to process the data, this data may be already freed. Linux version worked only by occasion. * G-API-NG/Streaming: Fixed (I hope so) Windows warnings * G-API-NG/Streaming: fixed typos in internal comments - Also added some more explanation on Streaming/OpenCL status * G-API-NG/Streaming: Added more unit tests on streaming - Various start()/stop()/setSource() call flow combinations * G-API-NG/Streaming: Added tests on own concurrent bounded queue * G-API-NG/Streaming: Added more tests on various data types, + more - Vector/Scalar passed as input; - Vector/Scalar passed in-between islands; - Some more assertions; - Also fixed a deadlock problem when inputs are mixed (1 constant, 1 stream) * G-API-NG/Streaming: Added tests on output data types handling - Vector - Scalar * G-API-NG/Streaming: Fixed test issues with IE + Windows warnings * G-API-NG/Streaming: Decoupled G-API from videoio - Now the core G-API doesn't use a cv::VideoCapture directly, it comes in via an abstract interface; - Polished a little bit the setSource()/start()/stop() semantics, now setSource() is mandatory before ANY call to start(). * G-API-NG/Streaming: Fix STANDALONE build (errors brought by render)	5 years ago
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gapi_infer_ie_test.cpp	Merge pull request #15216 from dmatveev:dm/ng-0010-g-api-streaming-api	5 years ago

Dmitry Matveev 2477103707 Merge pull request #15216 from dmatveev:dm/ng-0010-g-api-streaming-api

* G-API-NG/Streaming: Introduced a Streaming API

Now a GComputation can be compiled in a special "streaming" way
and then "played" on a video stream.

Currently only VideoCapture is supported as an input source.

* G-API-NG/Streaming: added threading & real streaming

* G-API-NG/Streaming: Added tests & docs on Copy kernel

- Added very simple pipeline tests, not all data types are covered yet
  (in fact, only GMat is tested now);
- Started testing non-OCV backends in the streaming mode;
- Added required fixes to Fluid backend, likely it works OK now;
- Added required fixes to OCL backend, and now it is likely broken
- Also added a UMat-based (OCL) version of Copy kernel

* G-API-NG/Streaming: Added own concurrent queue class

- Used only if TBB is not available

* G-API-NG/Streaming: Fixing various issues

- Added missing header to CMakeLists.txt
- Fixed various CI issues and warnings

* G-API-NG/Streaming: Fixed a compile-time GScalar queue deadlock

- GStreamingExecutor blindly created island's input queues for
  compile-time (value-initialized) GScalars which didn't have any
  producers, making island actor threads wait there forever

* G-API-NG/Streaming: Dropped own version of Copy kernel

One was added into master already

* G-API-NG/Streaming: Addressed GArray<T> review comments

- Added tests on mov()
- Removed unnecessary changes in garray.hpp

* G-API-NG/Streaming: Added Doxygen comments to new public APIs

Also fixed some other comments in the code

* G-API-NG/Streaming: Removed debug info, added some comments & renamed vars

* G-API-NG/Streaming: Fixed own-vs-cv abstraction leak

- Now every island is triggered with own:: (instead of cv::)
  data objects as inputs;
- Changes in Fluid backend required to support cv::Mat/Scalar were
  reverted;

* G-API-NG/Streaming: use holds_alternative<> instead of index/index_of test

- Also fixed regression test comments
- Also added metadata check comments for GStreamingCompiled

* G-API-NG/Streaming: Made start()/stop() more robust

- Fixed various possible deadlocks
- Unified the shutdown code
- Added more tests covering different corner cases on start/stop

* G-API-NG/Streaming: Finally fixed Windows crashes

In fact the problem hasn't been Windows-only.
Island thread popped data from queues without preserving the Cmd
objects and without taking the ownership over data acquired so when
islands started to process the data, this data may be already freed.

Linux version worked only by occasion.

* G-API-NG/Streaming: Fixed (I hope so) Windows warnings

* G-API-NG/Streaming: fixed typos in internal comments

- Also added some more explanation on Streaming/OpenCL status

* G-API-NG/Streaming: Added more unit tests on streaming

- Various start()/stop()/setSource() call flow combinations

* G-API-NG/Streaming: Added tests on own concurrent bounded queue

* G-API-NG/Streaming: Added more tests on various data types, + more

- Vector/Scalar passed as input;
- Vector/Scalar passed in-between islands;
- Some more assertions;
- Also fixed a deadlock problem when inputs are mixed (1 constant, 1 stream)

* G-API-NG/Streaming: Added tests on output data types handling

- Vector
- Scalar

* G-API-NG/Streaming: Fixed test issues with IE + Windows warnings

* G-API-NG/Streaming: Decoupled G-API from videoio

- Now the core G-API doesn't use a cv::VideoCapture directly,
  it comes in via an abstract interface;
- Polished a little bit the setSource()/start()/stop() semantics,
  now setSource() is mandatory before ANY call to start().

* G-API-NG/Streaming: Fix STANDALONE build (errors brought by render)

5 years ago

gapi_infer_ie_test.cpp

Merge pull request #15216 from dmatveev:dm/ng-0010-g-api-streaming-api

5 years ago