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CraftingGamerTom/A Youtube Live Stream Service For Raspberry Pi USB.md

Created March 18, 2019 03:39
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This script will take in a parameter of the YouTube stream key then start a new stream every 6 hours (at each quarter of a day - midnight, 6am, noon, 6pm)
Raw
A Youtube Live Stream Service For Raspberry Pi USB.md

A simple bash program that can be run as a service

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live-stream.service
[Unit]
Description=Youtube Live Stream Service
After=multi-user.target
[Service]
Type=forking
ExecStart=/home/pi/Desktop/ptk-greenhouse/live-stream/live-stream.sh {KEY-HERE}
KillMode=process
#Restart=on-abort
Restart=always
#Restart=never
[Install]
WantedBy=multi-user.target
Raw
live-stream.sh
#!/bin/bash
# From https://github.com/alexellis/raspberrypi-youtube-streaming/blob/master/streaming/entry.sh
# Changed dev/zero to dev/video0
# Youtube broadcast with ffmpeg
# https://gist.githubusercontent.com/olasd/9841772/raw/12c78a9426af9102e7c3fe40652c96f3c793aa9d/stream_to_youtube.sh
# Another possibly useful startup command
#ffmpeg -f video4linux2 -r 15 -s 1280x720 -vcodec mjpeg -i /dev/video0 -g 40 -f flv "$YOUTUBE_URL/$KEY"
# Configure youtube with 720p resolution. The video is not scaled.
VBR="7000k" # Bitrate de la vidéo en sortie
#RES="1920x1080"
RES="1280x720"
#RES="858x480"
FPS="60" # FPS de la vidéo en sortie
QUAL="ultrafast" # Preset de qualité FFMPEG
YOUTUBE_URL="rtmp://a.rtmp.youtube.com/live2" # URL de base RTMP youtube
SOURCE="/dev/video0" # UDP Source (see SAP ads)
KEY="$1" # Key to the youtube event
# Function to handle sleeping
sleep_during_stream() {
eval "$(date +'today=%F now=%s')"
quarterday=$((21600))
midnight=$(date -d "$today 0" +%s)
difference=$((now - midnight))
SLEEPTIME=$0
echo "$((now - midnight))"
if [ "$difference" -lt $((0)) ]; then
echo ERROR: difference is less than zero!
elif [ "$difference" -lt "$quarterday" ]; then
echo before 6am
SLEEPTIME=$((quarterday - difference))
elif [ "$difference" -lt $(("$quarterday"*2)) ]; then
echo between 6am and 12pm
SLEEPTIME=$((quarterday*2 - difference))
elif [ "$difference" -lt $(("$quarterday"*3)) ]; then
echo between 12pm and 6pm
SLEEPTIME=$((quarterday*3 - difference))
elif [ "$difference" -lt $(("$quarterday"*4)) ]; then
echo between 6pm and midnight
SLEEPTIME=$((quarterday*4 - difference))
else
echo ERROR: difference is greater than a day!
fi
echo sleeping "$((SLEEPTIME))"
sleep "$((SLEEPTIME))"
#sleep 10 #debug
}
# Ensure the stream key is set
if [ -z "$1" ]; then
echo Stream Key was not passed in as an argument
exit 1
fi
# Loop to start and stop the streaming events
while true
do
echo =====
echo Starting Live Stream
echo Time: "$((now))"
# Run ffmpeg
ffmpeg \
-i "$SOURCE" -deinterlace \
-f lavfi -i anullsrc \
-vf "drawtext=fontfile=FreeSerif.ttf:fontcolor=white:text='%{localtime}:fontsize=16'[out]" \
-vcodec libx264 -pix_fmt yuv420p -s $RES -preset $QUAL -r $FPS -g $(($FPS * 2)) -b:v $VBR \
-acodec libmp3lame -ar 44100 -threads 1 -qscale 4 -b:a 64k -bufsize 256k \
-f flv "$YOUTUBE_URL/$KEY" &
pid=$!
echo PID: "$((pid))"
echo =====
# Sleep until next quarter day (6 hours or less if started as odd time)
sleep_during_stream
echo =====
echo Ending Live Stream
echo Time: "$((now))"
echo -----
echo killing process..
kill -TERM $pid
sleep 8
echo ..done!
echo =====
done
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