Livestream to Facebook from YouTube's videos.

yt-to-fb.sh

#!/bin/bash

FFMPEG=`which ffmpeg`
YOUTUBEDL=`which yt-dlp`

KEY=""
RTMP_SERVER="rtmps://live-api-s.facebook.com:443/rtmp"

V="$1"
A="$2"

if [ -z "$2" ]
then
	A="$1"
fi


echo "Getting your audio..."
AUDIO=$($YOUTUBEDL -f 'bestaudio[ext=m4a]' $A --get-url)
echo "Getting your video..."
VIDEO=$($YOUTUBEDL -f 'bestvideo[height=1080]' $V --get-url)

if [ "$3" == "debug" ]
then
	# $FFMPEG -re -i "$VIDEO" -i "$AUDIO" -c:v libx264 -b:v 1.5M -preset ultrafast -c:a copy -shortest -f flv "${RTMP_SERVER}/${KEY}"
	$FFMPEG -re -i "$VIDEO" -i "$AUDIO" -c:a copy -ac 1 -ar 44100 -b:a 96k -vcodec libx264 -pix_fmt yuv420p -tune zerolatency -shortest -f flv -maxrate 2M -preset veryfast "${RTMP_SERVER}/${KEY}"
else
	$FFMPEG -re -i "$VIDEO" -i "$AUDIO" -c:v libx264 -b:v 2M -preset ultrafast -c:a copy -shortest -f flv "${RTMP_SERVER}/${KEY}" > /dev/null 2>&1 &
fi

if [ $? -lt 0 ]
then
	echo "ERROR: Please debug."
else
	echo "Streaming from YouTube to Facebook."
fi