pd-ndi

__pd_ndi__ is a Pure Data extensions that enables video transmission through NDI.

Newtek NDI (Network Device Interface) is a software standard for broadcasting high quality video and audio over network with low latency.

Gem Graphics Environment for Multimedia for Pure Data

Execute following commands in root directory of pd_ndi:
```
mkdir build
cd build
cmake ../
make
```
You can specify non-default pd Gem's and NDI SDK installation directories by providing PD_INSTALL_DIR, GEM_EXTERN_DIR and - on linux and mac -NDI_INSTALL_DIR options to CMake

cmake ../ -DPD_INSTALL_DIR=path/to/pd -DGEM_EXTERN_DIR=path/to/gem

On Linux gem-dev package is required for compilation as it contains Gem header files.

Precompiled Windows, Mac and Linux binaries can be downloaded from github's releases tab.

Copy _pdndi file from bin directory to your externals directory where all tour externals are located
Add pd_ndi to the list of libraries loaded by Pure Data at startup (File menu -> preferences -> startup -> new -> type _pdndi -> ok -> ok -> DONE)

NDI library file must be visible for pd_ndi also after compilation. Easiest way to make it so is to copy it to the installation folder of pd_ndi.
Gem has to be added to the library list before pd_ndi

[ndisender]

[ndisender] connected to [gemhead] will transmit what's before it in Gem's render chain. In case you are familiar with syphonserver for Gem, ndisender will work the same way.
[ndireceiver]

Passes data received from NDI source as pix data. Works similarly to e.g. [_piximage]
[ndisourcefinder]

Simple object that will search for available NDI sources after receiving bang. Results are printed in console.
_[glndisender]

To use _[glndisender] object with Gem just connect right outlet of [gemframebuffer] to the left inlet of _[glndisender].

(Note: glndisender's main purpose is to be used with Gem's [gemframebuffer] object, but implementation doesn't depend on Gem, so it should also work with other OpenGL wrapping objects that can bang [glndisender] object with GL_TEXTURE2D as [gemframebuffer]_ does)
You can also set desired framerate of NDI broadcast by sending [fps $1 ( to [ndisender] or _[glndisender] (30 fps by default).

gogo2 / pd-ndi