Xiaomi Mi Internet Radio custom station(s)

disclaimer

introduction

1. Recode an existing stream to a format that the Xiaomi Mi Internet Radio can play
2. Pretend against the Mi Home app that you are api.ximalaya.com (e.g. hosts editor or DNS) and serve http://api.ximalaya.com/openapi-gateway-app/live/radios and/or http://api.ximalaya.com/openapi-gateway-app/search/radios with your custom stations (can be disabled once the radio knows your stations)
3. Add custom stations using the Mi Home app to the radio and enjoy

prerequisites

radio hrdware

ffmpeg

sudo rpm --import http://li.nux.ro/download/nux/RPM-GPG-KEY-nux.ro
sudo rpm -Uvh http://li.nux.ro/download/nux/dextop/el6/x86_64/nux-dextop-release-0-2.el6.nux.noarch.rpm
sudo yum install faac.x86_64 fdk-aac.x86_64 ffmpeg ffmpeg-devel -y

webserver

RewriteEngine on
RewriteRule "^openapi-gateway-app(.*)" "http://api.ximalaya.com/openapi-gateway-app$1" [P]
RewriteRule "^oauth2(.*)" "http://api.ximalaya.com/oauth2$1" [P]

android app

get the server running

stream encoder

#!/bin/bash

FFMPEG=/usr/bin/ffmpeg
STREAMURL="http://streams.deltaradio.de/delta-foehnfrisur/aac-64/mediaplayer/"
RADIOID=527782023
# in my case i do not ne to re-encode the webstry, so copy is sufficient
ENCODE="-c:a copy"
# check available aac encoders with ffmpeg -encoders | grep -i aac
# to enable re-encoding using the fdk-aac lib mentioned above, uncomment next line
#ENCODE="-c:a libfdk_aac -b:a 64k"
#ENCODE="-c:a libfaac -b:a 64k"

OUTPUTDIR="/var/www/html/radio/${RADIOID}/"
SEGLIST="${OUTPUTDIR}/pl.m3u8"
SEGLISTPREFIX="http://[YOUR SERVER HOSTNAME OR IP]/radio/${RADIOID}/"
OUTPUT="${OUTPUTDIR}64%03d.aac"

# with a dialup connection that gets disconnected every 24h 
# we need to re-run ffmpeg in case of disconnected 
# - hence the while true loop
while true; do
        ${FFMPEG} \
                -i "${STREAMURL}" \
                ${ENCODE} \
                -f ssegment \
                -segment_list ${SEGLIST} \
                -segment_list_flags +live \
                -segment_time 7 \
                -segment_list_size 3 \
                -segment_wrap 5 \
                -segment_list_entry_prefix ${SEGLISTPREFIX} \
                "${OUTPUT}"
done

radio list

{
  "total_page":1,
  "total_count":1,
  "current_page":0,
  "radios":[
    {
      "id":527782023,
      "kind":"radio",
      "program_name":"Foehnfrisur",
      "radio_name":"Deltaradio Foehnfrisur",
      "radio_desc":"Feinsten Hardrock und Heavy Metal gibt es hier!",
      "schedule_id":0,
      "support_bitrates":[
        64
      ],
      "rate24_aac_url":"",
      "rate64_aac_url":"http://[YOUR SERVER HOSTNAME OR IP]/radio/527782023/pl.m3u8",
      "rate24_ts_url":"",
      "rate64_ts_url":"",
      "radio_play_count":1,
      "cover_url_small":"http://[YOUR SERVER HOSTNAME OR IP]/radios/527782023/cover_small.png",
      "cover_url_large":"http://[YOUR SERVER HOSTNAME OR IP]/radios/527782023/cover_big.png",
      "updated_at":0,
      "created_at":0
    }
  ]
}

add radio station to your radio

Step by Step

1. Open up the MI Home app:
   
   Select your device here.
2. Device's dashboard:
   
   This is basically your device's dashboard, showing in the bottom what is playing and your favorite stations. Click on the gray plus in the upper left corner to add another favorite.
3. Select favorites:
   
   To get to your own stations click on the icon in the upper right corner that looks like a radio station's antenna.
4. Add your own station:
   
   Click on the plus next to your own station to add it as a favorite.
5. Own station playing:
   
   The gray checkmark next to your station indicates that it has been added as a favorite. If you click on the station it will be played (see bottom).
6. Own station as favorite:
   
   Going back to the dashboad shows your own station 😎👍!

more than one station

#!/bin/bash

#############################################################################
################################ config part ################################
#############################################################################

# I had some issues with current ffmpeg versions and the %03d part of the files
# tests with 3.1.7 were OK, 3.3. failed for me
FMPEG=/usr/bin/ffmpeg

# if copy is sufficient
#ENCODE="-c:a copy"
# check available aac encoders with ffmpeg -encoders | grep -i aac
ENCODE="-c:a libfdk_aac -b:a 64k"
#ENCODE="-c:a libfaac -b:a 64k"

WEBBASEDIR="/var/www/html/radio"
TMPDIR="/tmp/radio"
WWWPREFIX="http://[MY PUBLIC IP]/radio/"

JSONFILE=${WEBBASEDIR}/stations.json

#############################################################################
################################ /config part ###############################
#############################################################################

#clean up old stuff
if [ -d ${TMPDIR} ]; then
	rm -rf ${TMPDIR}
fi
mkdir -p ${TMPDIR}

if [ ! -e ${WEBBASEDIR} ]; then
	ln -s ${TMPDIR} ${WEBBASEDIR} 
fi

#copy all stuff to temp dir to avoid disk wear...
SCRIPTDIR=$(dirname $(readlink -f $0))
find ${SCRIPTDIR}/* -prune -type d | while IFS= read -r d; do 
    cp -R ${d} ${TMPDIR}
done

RUNNING=1
# listen to CTRL+C
trap request_stop INT
request_stop() { RUNNING=0; }

# build json with stations
# should be available via /openapi-gateway-app/live/radios
STATIONCOUNT=`find ${TMPDIR} -type f -iname "stream.url" | wc -l`
cat >${JSONFILE} <<EOL
{
  "total_page":1,
  "total_count":${STATIONCOUNT},
  "current_page":0,
  "radios":[
EOL
LASTSTATION=`find ${TMPDIR}/ -type f -iname "stream.url" | tail -n 1`
find ${TMPDIR} -type f -iname "stream.url" -print0 | while IFS= read -r -d $'\0' FILE; do
	OUTPUTDIR=`dirname ${FILE}`
	RADIOID=`basename ${OUTPUTDIR}`
	SEGLIST="${OUTPUTDIR}/pl.m3u8"
	OUTPUT="${OUTPUTDIR}/64%03d.aac"
	STREAMURL=`cat ${FILE}`
	STATIONNAME=`cat ${OUTPUTDIR}/stationname.txt`
	cat >>${JSONFILE} <<EOL
    {
      "id":${RADIOID},
      "kind":"radio",
      "program_name":"${STATIONNAME}",
      "radio_name":"${STATIONNAME}",
      "radio_desc":"",
      "schedule_id":0,
      "support_bitrates":[
        64
      ],
      "rate24_aac_url":"",
      "rate64_aac_url":"${WWWPREFIX}${RADIOID}/pl.m3u8",
      "rate24_ts_url":"",
      "rate64_ts_url":"",
      "radio_play_count":1,
      "cover_url_small":"${WWWPREFIX}${RADIOID}/cover_small.png",
      "cover_url_large":"${WWWPREFIX}${RADIOID}/cover_big.png",
      "updated_at":0,
      "created_at":0
    }
EOL
	if [ ${FILE} != ${LASTSTATION} ]; then
		echo , >> ${JSONFILE}
	fi
done

cat >>${JSONFILE} <<EOL
  ]
}
EOL

echo json file written to ${JSONFILE}
echo make sure it is linked to be accessible like "ln -s ${JSONFILE} /var/www/html/openapi-gateway-app/live/radios"

# clear all aac parts
find ${TMPDIR}/ -type f -iname "*.aac" | xargs rm

# with a dialup connection that gets disconnected every 24h
# we need to re-run ffmpeg in case of disconnected
# - hence the while true loop
while [[ ${RUNNING} > 0 ]]; do
	find ${TMPDIR}/ -type f -iname "stream.url" -print0 | while IFS= read -r -d $'\0' FILE; do
		OUTPUTDIR=`dirname ${FILE}`
		RADIOID=`basename ${OUTPUTDIR}`
		SEGLIST="${OUTPUTDIR}/pl.m3u8"
		OUTPUT="${OUTPUTDIR}/64%03d.aac"
		STREAMURL=`cat ${FILE}`
		STATIONNAME=`cat ${OUTPUTDIR}/stationname.txt`
                PID=`ps axwww | grep ${RADIOID} | grep -v grep | head -n 1 | awk '{print $1}'`
                CURRENTTIME=$(date +%s)
                LASTCHANGED=`find ${OUTPUTDIR} -type f -iname "*.aac" | xargs stat -c "%Y" | sort -r | head -n 1`
                FILEAGE=$((CURRENTTIME-LASTCHANGED))
                if [[ ${FILEAGE} > 7 ]]; then
			echo "  File too old... Killing encoder..."
                       	kill ${PID}
			sleep 1
                fi

		PID=`ps axwww | grep ${RADIOID} | grep -v grep | head -n 1 | awk '{print $1}'`
		echo ${PID} > "${OUTPUTDIR}/ffmpeg.pid"
	
		if [ -z "${PID}" ]; then
			echo Starting ffmpeg for ${STATIONNAME} with ID ${RADIOID}

	                if [[ ${STREAMURL} == *".m3u" ]]; then
	                        STREAMURL=`curl -s ${STREAMURL}`
	                        echo "New stream url from playlist: ${STREAMURL}"
	                fi

	                ${FFMPEG} \
	                        -i "${STREAMURL}" \
	                        ${ENCODE} \
	                        -f ssegment \
	                        -segment_list ${SEGLIST} \
	                        -segment_list_flags +live \
	                        -segment_time 7 \
	                        -segment_list_size 3 \
	                        -segment_wrap 5 \
	                        -segment_list_entry_prefix ${WWWPREFIX}${RADIOID}/ \
	                        "${OUTPUT}" > /dev/null 2>&1 &
			PID=`ps axwww | grep ${RADIOID} | grep -v grep | head -n 1 | awk '{print $1}'`
			echo ${PID} > "${OUTPUTDIR}/ffmpeg.pid"
			echo "  PID ${PID}"
        	fi
	done
	sleep 5
done

echo Stopping all encoders...
find ${TMPDIR} -type f -iname "ffmpeg.pid" -print0 | while IFS= read -r -d $'\0' FILE; do
	PID=`cat ${FILE}`
	if [ ! -z "${PID}" ]; then
		echo "  Stopping ${PID}"
		kill ${PID}
	fi
	rm ${FILE}
done

F.A.Q.

What are the menu points in the app?

• Top menu:
  
  
• Timer menu:
  
  
• Startup channel menu:
  
  

thanks and related projects

• http://ximiraga.ru/: russian site with alternative stations to be used with the Xiaomi Mi WiFi Online radio
• https://github.com/andr68rus/miwifiradio: Source and HowTo for setting up an own radio station server with multiple stations, users,... Also supports web management and killing encoding processes of radios not currently listened to. Uses nginx.
• delta radio and their alternative streams
• miui-germany Forum
• english miui forum [Q & A] Xiaomi Smart home - How to change radios