docker-srt

Docker image definition with compiled SRT live streaming protocol

Pulling docker image from docker hub

1. Ensure you have docker installed
2. Type: docker pull jcenzano/docker-srt

Creating the docker image locally (optional)

1. Ensure you have docker docker and make installed
2. Type make

Testing the image

1. You can test the image with this command (you should see srt help):

docker run --rm -it jcenzano/docker-srt

2. To test it in a single machine with real live video, if you have ffmpeg installed you can do:

#Terminal 1: Run SRT RX
MY_IP="10.0.0.2" #Replace it with your machine's IP
docker run --name='srt-rx' -it --rm  jcenzano/docker-srt -v -r:10 -s:5 "srt://0.0.0.0:9000?mode=server" "udp://$MY_IP:7010?mode=client"

#Terminal 2: Run SRT TX
docker run --name='srt-tx' --link='srt-rx' -it --rm -p 7000:7000/udp jcenzano/docker-srt -v -r:10 -s:5 "udp://:7000" "srt://srt-rx:9000?mode=client"

#Terminal 3: Run ffplay viewer
ffplay udp://127.0.0.1:7010

#Terminal 4: Run ffmpeg source
ffmpeg -f lavfi -re -i smptebars=duration=60:size=1280x720:rate=30 -f lavfi -re -i sine=frequency=1000:duration=60:sample_rate=44100 -pix_fmt yuv420p -c:v libx264 -b:v 1000k -g 30 -keyint_min 120 -profile:v baseline -preset veryfast -c:a libfdk_aac -b:a 96k -f mpegts "udp://127.0.0.1:7000?pkt_size=1316&flush_packets=0"

Using the image

The docker container is executing stransmit from SRT, so you can use any of the SRT options.

Note: It is important to point out that if you use UDP as input of SRT the payload of the UDP packets has to be smaller or equal to 1456 bytes (See: Haivision/srt#86)