using one module inside another

Question

Is it possible to use one ready-made module inside another? I'm asking this because it would make it very convenient to combine multiple modules. For example, saving the output of a module would become a breeze if I could just write

itsVideoSaver.start()

itsVideoSaver.stop()

instead of writing all that code again and making sure I didn't miss anything that would break my code. I am actually asking this question specifically because I want to save the video output of a module, but I feel the question could be generalized.

Answer 1

Definitely, yes this is very nice to have. JeVois supports this, just the vocabulary is a bit different:

- you can create Component objects that may host a number of Parameters and any number of sub-components.

- Module derives from Component but is intended to be a terminal entity.

- in JeVois, you load and run one module at a time. The root of the hierarchy is the Engine, which holds the module as a sub-component, which in turn can hold more sub-components.

For more info, see

http://jevois.org/doc/classjevois_1_1Component.html

A good example is the ArUcoBlob module which has an ArUco subcomponent plus several BlobDetector sub-components. For more examples search for "addSubComponent" in the source tree of jevoisbase.

http://jevois.org/basedoc/jvpkg_2modules_2JeVois_2ArUcoBlob_2ArUcoBlob_8C_source.html

This one may also be a good starting point for you:

http://jevois.org/basedoc/classBufferedVideoReader.html

Comments

thanks! I will look into this. For now, I am storing images frame by frame for dataset generation. As the datasets are small (10-20fps for 2 minutes max.), the frame by frame method will work, however, the video writing method would be preferable for longer videos in the future.