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gst-plugin-ndi/README.md
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TODO
====
GStreamer NDI Plugin
====================
See:
*Compiled and tested with Ubuntu 16.04.5 and GStreamer 1.8.3*
https://coaxion.net/blog/2018/01/how-to-write-gstreamer-elements-in-rust-part-1-a-video-filter-for-converting-rgb-to-grayscale/
https://coaxion.net/blog/2018/02/how-to-write-gstreamer-elements-in-rust-part-2-a-raw-audio-sine-wave-source/
Before cargo build install:
Before compile the element it's necessary install Rust, NDI SDK and the following packages for gstreamer:
```
$ apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev \
apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev \
gstreamer1.0-plugins-base gstreamer1.0-plugins-good \
gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly \
gstreamer1.0-libav libgstrtspserver-1.0-dev
```
Test
Compile NDI element and basic pipelines
-------
```
cargo build
export GST_PLUGIN_PATH=`pwd`/target/debug
gst-inspect-1.0 ndisrc
GST_DEBUG=3 gst-launch-1.0 ndisrc ! video/x-raw, format=UYVY, width=720, height=576, framerate=25/1 ! videoconvert ! autovideosink
GST_DEBUG=3 gst-launch-1.0 -v ndisrc stream-name="GC-DEV2 (Nombre_del_stream)" ! video/x-raw, format=UYVY, width=720, height=576, framerate=25/1 ! xvimagesink sync=false
gst-inspect-1.0 ndi
gst-inspect-1.0 ndivideosrc
gst-inspect-1.0 ndiaudiosrc
gst-launch-1.0 ndivideosrc stream-name="GC-DEV2 (OBS)" ! autovideosink
gst-launch-1.0 ndiaudiosrc stream-name="GC-DEV2 (OBS)" ! autoaudiosink
gst-launch-1.0 ndivideosrc stream-name="GC-DEV2 (OBS)" ! autovideosink ndiaudiosrc stream-name="GC-DEV2 (OBS)" ! autoaudiosink
```
Debug pipelines:
```
GST_DEBUG=3 gst-launch-1.0 -v ndisrc ip=10.21.10.103:5961 ! video/x-raw, format=UYVY, width=1920, height=1080, framerate=25/1 ! autovideosink sync=false
or
GST_DEBUG=3 gst-launch-1.0 -v ndisrc stream-name="MINI-DE-TELTEK.OFICINA.TELTEK.ES (NDI Signal Generator)" ! video/x-raw, format=UYVY, width=1920, height=1080, framerate=25/1 ! autovideosink sync=false
gst-launch-1.0 -v ndivideosrc name=gc-ndi-src stream-name="GC-DEV2 (OBS)" ! autovideosink ts-offset=1000000000
#Check if the timestamps are correct
gst-launch-1.0 -v ndivideosrc name=gc-ndi-src stream-name="GC-DEV2 (OBS)" ! fakesink silent=false
#Debug sink to check if jitter is correct
GST_DEBUG=*basesink*:5 gst-launch-1.0 -v ndivideosrc name=gc-ndi-src stream-name="GC-DEV2 (OBS)" ! autovideosink
#Add latency when launching the pipeline
gst-launch-1.0 -v ndivideosrc name=gc-ndi-src stream-name="GC-DEV2 (OBS)" ! autovideosink ts-offset=1000000000
```
More info about GStreamer plugins and Rust:
----------------------------------
https://coaxion.net/blog/2018/01/how-to-write-gstreamer-elements-in-rust-part-1-a-video-filter-for-converting-rgb-to-grayscale/
https://coaxion.net/blog/2018/02/how-to-write-gstreamer-elements-in-rust-part-2-a-raw-audio-sine-wave-source/