sound travel

cast-here.sh

#/bin/bash
FIFO=/tmp/recast-fifo
rm $FIFO 
mkfifo $FIFO 

(while true; do cat $FIFO | pv | nc -u 127.0.0.1 14999; NC_PID_1=$!; done) &
TCP_PULL_PID=$!
(while true; do nc 0.0.0.0 14888 >$FIFO; NC_PID_2=$!; done) &
UDP_PUSH_PID=$!

trap 'killme' INT

killme () {
    echo "Killing processes"
    kill -9 $TCP_PULL_PID 2>/dev/null
    kill -9 $NC_PID_1 2>/dev/null
    kill -9 $UDP_PUSH_PID 2>/dev/null
    kill -9 $NC_PID_2 2>/dev/null
    kill -9 $$
}

wait

cast-out.sh

#!/bin/bash

FIFO=/tmp/cast-fifo

rm $FIFO
mkfifo $FIFO
amixer sset Capture cap

ffmpeg -f alsa -ac 2 -i plughw:0,0 -acodec libmp3lame -ab 8k -threads 0 -f rtp rtp://127.0.0.1:14888 &
FFMPEG_PID=$!

(while true; do nc -l -u -p 14888 1>$FIFO; NC_PID_1=$!; done) & 
IN_PID=$!

(while true; do nc -l -p 14888 0<$FIFO; NC_PID_2=$!; done) &
OUT_PID=$!

trap 'killme' INT

killme () {
    echo "Killing processes"
    kill -9 $FFMPEG_PID 2>/dev/null
    kill -9 $IN_PID 2>/dev/null
    kill -9 $NC_PID_1 2>/dev/null
    kill -9 $OUT_PID 2>/dev/null
    kill -9 $NC_PID_2 2>/dev/null
    kill -9 $$
}
wait