Broadcast live (well almost ~15sec) to your channel in youtoube or anywhere else you might want to
This project is setup to start on a linux machine it requires that you have ffmpeg installed.
if you have the libav package installed, you can use that instead
also sudo apt-get install libasound2-dev
The other steps are easier just run npm install and bower install in the project root then create a file scret.json use this as example
{
"output": "{{youtube chanel}}/{{the key for you channel}}",
"serverPass": "set a pass to control the server"
}If you want to serve over https just put server.crt and server.key in the config/ directory
Next run npm start
to start broadcasting access localhost:8002,
pick a configuration from the menu and click on the start button
Next time you can run spm start auto this will start broadcasting with the last used configuration
You must set a default output in the secrets.json, but it can be overriden in the preset configuration by setting an output different from 'default'
If you are using libx264 codec start with -vcodec libx264 -preset ultrafast this is the least stresfull preset then superfast, fast and so on until superslow, each step adds twice as much demand on the cpu
You can stream audio to the nodejs server from the webApp and then merge it with the video stream by specifying audio input as pipe: ...-f mp3 -i pipe:1 ... then audio will be fetched from the webApp, you may need to sync the audio and video streams with some ffmpeg configuration options
To use on raspberry pi with the raspivid camera you can pipe two or more streams together
using | as separator.
Example preset:
{
"name": "yt1080p",
"command": "raspivid -t 0 -n -w 1920 -h 1080 -fps 30 -b 4500000 -vf -rot 0 -o - | ffmpeg -r 30 -f h264 -thread_queue_size 512 -i - -f mp3 -thread_queue_size 512 -i pipe:1 -vcodec copy -ar 44100 -f flv",
"output": "default"
}This will start and manage 2 processes: raspivid and ffmpeg and pipe the former's data output to the latter's input
To run with forever install npm install -g forever
Run the server normally experiment and select a preset then start the process like this
forever start --killSignal=SIGTERM server.js auto
to stop use forever stop server.js this way you ensure node will terminate the child processes (ffmpeg) it started (by running a cleanup scirpt and exiting)