gistfile1.txt

#!/bin/bash
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
ATV="$DIR/atv"
ATV_URL="$DIR/atv-airplay-url"
TMP_DIR="/tmp/play-$RANDOM"

HTTP_SERVER="/usr/local/bin/http-server"
NPM="/usr/local/bin/npm"

if [[ ! -f "$1" ]]; then
    echo "usage : $0 [FULL_PATH_TO_MEDIA_FILE] ['loop']" >&2
    exit 1
fi

"$HTTP_SERVER" --help >/dev/null 2>&1 
if [[ $? -eq 127 ]]; then
    echo "** no http-server ; trying to install" >&2
    "$NPM" install -g http-server
    if [[ $? -eq 127 ]]; then
        echo "ERROR : need npm (nodeJS)" >&2
        exit 1
    fi
fi

if [[ "$2" == "loop" ]]; then
    LOOP=1
fi

NAME=$(basename -- "$1")
EXT="${NAME##*.}"

HTTP_SERVER_PID=""
FFMPEG_PID=""

echo "## Temp dir = $TMP_DIR"
mkdir "$TMP_DIR"

if [[ $LOOP -eq 1 ]]; then
    echo "## Starting ffmpeg"
    # see : https://stackoverflow.com/questions/30846719/infinite-stream-from-a-video-file-in-a-loop
    ffmpeg \
        -loglevel warning \
        -threads $(sysctl -a | awk '/machdep.cpu.core_count/ {print $2}') \
        -re \
        -fflags +genpts \
        -stream_loop -1  \
        -i "$1"  \
        -hls_flags delete_segments \
        -c copy "$TMP_DIR/loop.m3u8" &
    FFMPEG_PID=$!
    echo "   --> ffmpeg pid = $FFMPEG_PID"
else
    echo "## Creating symlink"
    ln -s "$1" $TMP_DIR/movie.$EXT
fi

ADDR=$(ifconfig en0 | awk '$1=="inet" {print $2}')
PORT="8080"
DIRTY=1

clean_up() {
    [[ $DIRTY -eq 0 ]] && return 0

    if [[ ! -z "$FFMPEG_PID" ]]; then
        echo "## Quit ffmpeg"
        kill -9 "$FFMPEG_PID" 2>/dev/null
        FFMPEG_PID=""
        sleep 1
    fi
    echo "## Cleanup"
    rm -Rf "$TMP_DIR"
    if [[ ! -z "$HTTP_SERVER_PID" ]]; then
        kill -9 "$HTTP_SERVER_PID" 2>/dev/null
        HTTP_SERVER_PID=""
    fi

    DIRTY=0
}

trap 'clean_up' SIGINT

echo "## Starting http-server"
"$HTTP_SERVER" \
    -s \
    -c-1 \
    -a "$ADDR"\
    -p ${PORT} \
    -d false \
    "$TMP_DIR" &

HTTP_SERVER_PID=$!
echo "   --> http-server pid = $HTTP_SERVER_PID"

echo "## Requesting airplay"
if [[ $LOOP -eq 1 ]]; then
    echo "## Looping ; press ^C to stop"
    "$ATV_URL" "http://${ADDR}:${PORT}/loop.m3u8"
else
    "$ATV_URL" "http://${ADDR}:${PORT}/movie.${EXT}"
fi

clean_up