Webcam RTSP streaming script (using MediaMTX)

webcam_rtsp_stream.sh

#!/bin/bash

MEDIAMTX_DIR="$HOME/mediamtx"
MEDIAMTX_VERSION="v1.11.3"
CONFIG_FILE="/tmp/mediamtx.yml"

setup_mediamtx() {
  if [ ! -f "$MEDIAMTX_DIR/mediamtx" ]; then
    mkdir -p "$MEDIAMTX_DIR" && cd "$MEDIAMTX_DIR"
    echo "Setting up MediaMTX $MEDIAMTX_VERSION..."
    echo "Downloading MediaMTX..."
    wget -q -O - "https://github.com/bluenviron/mediamtx/releases/download/$MEDIAMTX_VERSION/mediamtx_${MEDIAMTX_VERSION}_linux_amd64.tar.gz" | tar -xz -C .
    cd -
  fi
  
  if [ ! -f "$CONFIG_FILE" ]; then
    echo "Creating new MediaMTX configuration in $CONFIG_FILE..."
    cat > "$CONFIG_FILE" << EOF
logLevel: info
paths:
  webcam:
    source: publisher
hlsDisable: yes
EOF
  elif ! grep -q "webcam:" "$CONFIG_FILE"; then
    echo "Adding webcam path to configuration in $CONFIG_FILE..."
    awk '/paths:/{print;print "  webcam:";print "    source: publisher";next}1' "$CONFIG_FILE" > "$CONFIG_FILE.tmp"
    sed -i 's/hlsDisable: no/hlsDisable: yes/' "$CONFIG_FILE.tmp"
    mv "$CONFIG_FILE.tmp" "$CONFIG_FILE"
  fi
}

start_streaming() {
  cd "$MEDIAMTX_DIR"
  echo "Starting MediaMTX server with config from $CONFIG_FILE..."
  ./mediamtx "$CONFIG_FILE" &
  MEDIAMTX_PID=$!
  
  sleep 2
  
  echo "Starting FFmpeg stream from webcam... RTSP URL: rtsp://localhost:8554/webcam"
  ffmpeg -f v4l2 -framerate 8 -video_size 1280x720 -i /dev/video0 \
    -c:v libx264 -preset ultrafast -tune zerolatency -b:v 1000k \
    -f rtsp -rtsp_transport tcp -stimeout 600000000 rtsp://localhost:8554/webcam 2>/dev/null

  kill $MEDIAMTX_PID
  echo "Streaming ended."
  cd -
}

setup_mediamtx
start_streaming