FFMPEG NDI

Builds FFMPEG with NDI enabled

Download required installation files

Make sure git is installed.

sudo apt update
sudo apt install git

Clone this repository

git clone https://github.com/lplassman/FFMPEG-NDI.git

Clone the FFMPEG repository and cd into it

git clone https://git.ffmpeg.org/ffmpeg.git && cd ffmpeg

Checkout 4.4 or later version of FFMPEG

git checkout n5.1

Apply Generic GitHub Email

git config user.email "[email protected]"

Apply Patch to revert changes when NDI was removed from FFMPEG

sudo git am ../FFMPEG-NDI/libndi.patch
sudo cp ../FFMPEG-NDI/libavdevice/libndi_newtek_* libavdevice/

At this point, FFMPEG is now reverted back to the way it was before NDI was removed from it.

Install Prerequisites for building FFMPEG with base libraries

sudo bash ../FFMPEG-NDI/preinstall.sh

Choose the appropriate NDI install for the CPU architecture

Install NDI Libraries on Raspberry Pi 4 64-bit

sudo bash ../FFMPEG-NDI/install-ndi-rpi4-aarch64.sh

Install NDI Libraries on Raspberry Pi 4 32-bit

sudo bash ../FFMPEG-NDI/install-ndi-rpi4-armhf.sh

Install NDI Libraries on Raspberry Pi 3 32-bit

sudo bash ../FFMPEG-NDI/install-ndi-rpi3-armhf.sh

Install NDI Libraries on x86_64 bit (Intel/AMD)

sudo bash ../FFMPEG-NDI/install-ndi-x86_64.sh

Install NDI Libraries on generic ARM64

Compiling on generic ARM64 requires use of the NDI Advanced SDK. Due to licensing restrictions, the NDI Advanced SDK must be downloaded manually from NDI's website: ndi.tv Extract the downloaded NDI Advanced SDK .tar file and copy it to the ffmpeg directory on the target device. This can be achieved by using FTP, SCP, or Samba.

sudo bash ../FFMPEG-NDI/install-ndi-generic-aarch64.sh

Install NDI Libraries on generic ARM32

Compiling on generic ARM32 requires use of the NDI Advanced SDK. Due to licensing restrictions, the NDI Advanced SDK must be downloaded manually from NDI's website: ndi.tv Extract the downloaded NDI Advanced SDK .tar file and copy it to the ffmpeg directory on the target device. This can be achieved by using FTP, SCP, or Samba.

sudo bash ../FFMPEG-NDI/install-ndi-generic-armhf.sh

Build and Install FFMPEG

The following is the bare minimum needed for sending and receiving NDI and more options can be added for a more feature filled FFMPEG build.

./configure --enable-nonfree --enable-libndi_newtek
make -j $(nproc)
sudo make install

Installation is now complete

Usage for FFMPEG with NDI

List all sources on the network

ffmpeg -f libndi_newtek -find_sources 1 -i dummy

Stream a webcam to NDI

ffmpeg -f v4l2 -framerate 30 -video_size 1280x720 -pixel_format mjpeg -i /dev/video1 -f libndi_newtek -pix_fmt uyvy422 CameraOut

Monitor a NDI stream

ffplay -fs -alwaysontop -fflags nobuffer -f libndi_newtek -bandwidth 0 -i 'NDI-SOURCE (Stream 1)'

Monitor a NDI stream (low latency)

ffplay -fs -alwaysontop -fflags nobuffer -flags low_delay -framedrop -analyzeduration 0 -max_probe_packets 1 -max_delay 0 -probesize 100000 -f libndi_newtek -bandwidth 0 -i 'NDI-SOURCE (Stream 1)'

The bandwidth argument can accept a few options when receiving:

• 0 = High Bandwidth
• 1 = Low Bandwidth
• 2 = Audio Only

Helpful Tips

To view help

ffmpeg --help

To compress ffmpeg source to .tar file

tar -zcvf ffmpeg.tar.gz ffmpeg