README.md



IO
This folder contains the IO plugins for VideoStitch applications. A plugin is an IO library that can be used by all the applications using the VideoStitch library.
Interfaces are defined in the VideoStitch library. Each plugin declares the used interfaces in its export.cpp file.
I/O plugins link against libvideostitch. They are loaded at runtime from libvideostitch.
A plugin is most the time an adapter using a third party library.
Two types of plugins are used:

Core plugins: I/O from files, including raw and network streams. Used in Studio and Vahana VR.
Vahana plugins: I/O from external hardware devices, trough acquisition cards. Used in Vahana VR.

The plugin documentation can be found on its folder src/<plugin>/README.md.

Build
Building any I/O plugin can be turned off by globally by setting BUILD_IO_PLUGINS=OFF.
Indidividual plugins are turned off on some systems where 3rd party libraries may not be available, and can be disabled with these CMake flags:


Option
Default
Comments


DISABLE_AV
OFF


DISABLE_BMP
ON
Used for debugging only


DISABLE_JPEG
${ANDROID}


DISABLE_TIFF
${ANDROID}


DISABLE_MP4
${NANDROID}
Uses Android Media SDK


DISABLE_RTMP
OFF


DISABLE_PORTAUDIO
${CMAKE_CROSSCOMPILING}