FFmpeg で HLS/DASH 同時ストリーミング

ffmpeg_stream.sh

#!/bin/sh

OUTDIR=/tmp/radio

rm -rf ${OUTDIR}/*/
mkdir -p ${OUTDIR}/hls/ ${OUTDIR}/dash/

HLS_CMD="[select=\'0:a\':f=segment:segment_format=mpegts:segment_time=10:segment_wrap=6:segment_list_flags=live:segment_list=${OUTDIR}/hls/radio.m3u8]${OUTDIR}/hls/radio.%04d.ts"
DASH_CMD="[select=\'0:a\':f=dash:seg_duration=10:hls_playlist=1:streaming=1]${OUTDIR}/dash/radio.mpd"

ffmpeg -hide_banner -re \
	-f alsa -ar 48000 -ac 2 -i hw:1 \
	-ar 48000 -ac 2 \
	-c:a aac -b:a 192k \
	-f tee -map 0:a \
	"${HLS_CMD}|${DASH_CMD}"