obs-multi.sh

#!/bin/bash

#LISTEN_URL='rtmp://localhost:1935/live/app'
LISTEN_URL='rtmp://127.0.0.1:1935/live/app'

TWITCH_LIVE_SERVER="live-fra"

CONFIG_PATH="$HOME/.config/obs-studio"

TWITCH_KEY_F="$CONFIG_PATH/twitch.key"
YOUTUBE_KEY_F="$CONFIG_PATH/youtube.key"
PEERTUBE_KEY_F="$CONFIG_PATH/peertube.key"

TEE=""

if [ -e $TWITCH_KEY_F ]; then
	TWITCH_KEY="$(cat "$TWITCH_KEY_F")"
	# Note: Twitch wants a keyframe every 2s:
	# https://ubuntuforums.org/archive/index.php/t-2230883.html
	TWITCH_URL="rtmp://$TWITCH_LIVE_SERVER.twitch.tv/app/$TWITCH_KEY"
	TEE="$TEE[f=flv]$TWITCH_URL|"
fi

#TODO
if [ -e "$YOUTUBE_KEY_F" ]; then
	YOUTUBE_KEY="$(cat "$YOUTUBE_KEY_F")"
	YOUTUBE_URL="rtmp://a.rtmp.youtube.com/live2/$YOUTUBE_KEY"
	#backup: rtmp://b.rtmp.youtube.com/live2?backup=1
	TEE="$TEE[f=flv]$YOUTUBE_URL|"
fi

#TODO
if [ -e "$PEERTUBE_KEY_F" ]; then
	PEERTUBE_KEY="$(cat "$PEERTUBE_KEY_F")"
	PEERTUBE_URL="rtmp://a.rtmp.youtube.com/live2/$PEERTUBE_KEY"
	TEE="$TEE[f=flv]$PEERTUBE_URL|"
fi

TEE="${TEE%|}"

echo "$TEE"
#exit 1

# cf.
# https://obsproject.com/forum/resources/obs-studio-stream-to-multiple-platforms-or-channels-at-once.932/
# https://video.stackexchange.com/questions/26257/rtmp-server-using-ffmpeg

exec ffmpeg -re \
	-f flv -listen 1 -i "$LISTEN_URL" \
	-c:v copy -c:a copy -map 0 -f tee \
	"$TEE"