launchEncoderWebCam.sh

#!/bin/bash

if [ -z "$1" ]; then
    TARGETSERVER="127.0.0.1"
    echo "Target Server not specified, assuming ${TARGETSERVER}..."
else
    TARGETSERVER="$1"
fi

if [ -z "$2" ]; then
    STREAMID="1234"
    echo "Target Path not specified, assuming ${STREAMID}..."
else
    STREAMID="$2"
fi

echo Oh 💩 here we go!
echo View your stream at http://${TARGETSERVER}:8080/ldashplay/${STREAMID}/manifest.mpd

input='-f lavfi -i testsrc2=size=1920x1080:rate=30 -pix_fmt yuv420p'

if [ "$(uname)" == "Darwin" ]; then
  # Use Apple Mac hardware encoder
  echo Using hardware encoder
  x264enc='h264_videotoolbox -profile:v main'

  #using Apple hardware webcam
  input='-f avfoundation -video_size 2048x1536 -framerate 20 -i 1'
else
  # Encoding settings for x264 (CPU based encoder)
  echo Using software encoder
  x264enc='libx264 -tune zerolatency -profile:v high -preset veryfast -bf 0 -refs 3 -sc_threshold 0'
fi

ffmpeg/ffmpeg \
    -hide_banner \
    -re \
    ${input} \
    -map 0:v \
    -c:v ${x264enc} \
    -g 150 \
    -keyint_min 150 \
    -b:v 4000k \
    -vf "fps=30,drawtext=fontfile=utils/OpenSans-Bold.ttf:box=1:fontcolor=black:boxcolor=white:fontsize=100':x=40:y=500:textfile=utils/text.txt" \
    -method PUT \
    -seg_duration 5 \
    -streaming 1 \
    -http_persistent 1 \
    -utc_timing_url "https://time.akamai.com/?iso" \
    -index_correction 1 \
    -use_timeline 0 \
    -media_seg_name 'chunk-stream-$RepresentationID$-$Number%05d$.m4s' \
    -init_seg_name 'init-stream1-$RepresentationID$.m4s' \
    -window_size 5  \
    -extra_window_size 10 \
    -remove_at_exit 1 \
    -adaptation_sets "id=0,streams=v id=1,streams=a" \
    -f dash \
    http://${TARGETSERVER}:8080/ldash/${STREAMID}/manifest.mpd