音楽（FLAC）が聴けるようになったのはいいのですが、寝室で使うには目覚ましに NACK5を鳴らす必要があります。
まず /boot/config.txtの dtparam=audio=offは今回はやってないです。
Volumio2の設定を先に行います。
アウトプットデバイスは「HiFiBerry DAC Plus」です。
ボリュームオプションは、ミキサータイプを「Hardware」にします。
関連するパッケージをインストールします。 cronが入ってなければそれも入れます。
root@volumio:/home/volumio# apt-get update
root@volumio:/home/volumio# apt-get install rtmpdump swftools libxml2-utils mplayer
root@volumio:/home/volumio# apt-get install cronサウンドデバイスを確認します。
root@volumio:/home/volumio# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA]
Subdevices: 8/8
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
Subdevice #4: subdevice #4
Subdevice #5: subdevice #5
Subdevice #6: subdevice #6
Subdevice #7: subdevice #7
card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: sndrpihifiberry [snd_rpi_hifiberry_dacplus], device 0: HiFiBerry DAC+ HiFi pcm512x-hifi-0 []
Subdevices: 1/1
Subdevice #0: subdevice #0DACドーターボードは「card 1」ですね。
「Installing and configuring the HiFiBerry DAC | HiFiBerry」を参考に /etc/asound.confを編集します。
root@volumio:/home/volumio# nano /etc/asound.conf
pcm.!default {
type hw card 1
}
ctl.!default {
type hw card 1
}受信スクリプトは「Raspberry Pi • View topic - インターネットラジオの受信」さんので基本的に変更ないのですが、Radikoの方は仕様変更があったようで、若干変化があります。
/rootディレクトリに保存し、パーミッションを755に設定します。
#!/bin/bash
# https://gist.github.com/matchy2/3956266 を若干修正
if [ $# -eq 1 ]; then
channel=$1
else
echo "usage : $0 channel_name"
echo " channel_name list"
echo " TBS Radio: TBS"
echo " Nippon Cultural Broadcasting: QRR"
echo " Nippon Broadcasting: LFR"
echo " Radio Nippon: JORF"
echo " Inter FM: INT"
echo " Tokyo FM: FMT"
echo " J-WAVE: FMJ"
echo " bayfm 78.0MHz: BAYFM78"
echo " NACK5: NACK5"
echo " FM yokohama 84.7: YFM"
exit 1
fi
#
# parameter setting
#
pid=$$
date=`date '+%Y-%m-%d-%H:%M'`
playerurl=http://radiko.jp/apps/js/flash/myplayer-release.swf
outdir="${XDG_CACHE_HOME}/radio/"
playerfile="${outdir}/player.swf"
keyfile="${outdir}/authkey.png"
auth1_fms_file="${outdir}/auth1_fms_${pid}"
auth2_fms_file="${outdir}/auth2_fms_${pid}"
channel_file="${outdir}/${channel}.xml"
mkdir -p ${outdir}
#
# get player
#
if [ ! -f $playerfile ]; then
wget -q -O $playerfile $playerurl
if [ $? -ne 0 ]; then
echo "failed to get player"
exit 1
fi
fi
#
# get keydata (need swftool)
#
if [ ! -f $keyfile ]; then
swfextract -b 12 $playerfile -o $keyfile
if [ ! -f $keyfile ]; then
echo "failed to get keydata"
exit 1
fi
fi
if [ -f ${auth1_fms_file} ]; then
rm -f ${auth1_fms_file}
fi
#
# access auth1_fms
#
wget -q \
--header="pragma: no-cache" \
--header="X-Radiko-App: pc_ts" \
--header="X-Radiko-App-Version: 4.0.0" \
--header="X-Radiko-User: test-stream" \
--header="X-Radiko-Device: pc" \
--post-data='\r\n' \
--no-check-certificate \
--save-headers \
-O ${auth1_fms_file} \
https://radiko.jp/v2/api/auth1_fms
if [ $? -ne 0 ]; then
echo "failed auth1 process"
exit 1
fi
#
# get partial key
#
authtoken=`perl -ne 'print $1 if(/x-radiko-authtoken: ([\w-]+)/i)' ${auth1_fms_file}`
offset=`perl -ne 'print $1 if(/x-radiko-keyoffset: (\d+)/i)' ${auth1_fms_file}`
length=`perl -ne 'print $1 if(/x-radiko-keylength: (\d+)/i)' ${auth1_fms_file}`
partialkey=`dd if=$keyfile bs=1 skip=${offset} count=${length} 2> /dev/null | base64`
echo "authtoken: ${authtoken} \noffset: ${offset} length: ${length} \npartialkey: $partialkey"
rm -f ${auth1_fms_file}
if [ -f ${auth2_fms_file} ]; then
rm -f ${auth2_fms_file}
fi
#
# access auth2_fms
#
wget -q \
--header="pragma: no-cache" \
--header="X-Radiko-App: pc_ts" \
--header="X-Radiko-App-Version: 4.0.0" \
--header="X-Radiko-User: test-stream" \
--header="X-Radiko-Device: pc" \
--header="X-Radiko-AuthToken: ${authtoken}" \
--header="X-Radiko-PartialKey: ${partialkey}" \
--post-data='\r\n' \
--no-check-certificate \
-O ${auth2_fms_file} \
https://radiko.jp/v2/api/auth2_fms
if [ $? -ne 0 -o ! -f ${auth2_fms_file} ]; then
echo "failed auth2 process"
exit 1
fi
echo "authentication success"
areaid=`perl -ne 'print $1 if(/^([^,]+),/i)' ${auth2_fms_file}`
echo "areaid: $areaid"
rm -f ${auth2_fms_file}
#
# get stream-url
#
if [ -f ${channel_file} ]; then
rm -f ${channel_file}
fi
wget -q "http://radiko.jp/v2/station/stream/${channel}.xml" -O ${channel_file}
stream_url=`echo "cat /url/item[1]/text()" | xmllint --shell ${channel_file} | tail -2 | head -1`
url_parts=(`echo ${stream_url} | perl -pe 's!^(.*)://(.*?)/(.*)/(.*?)$/!$1://$2 $3 $4!'`)
rm -f ${channel_file}
#
# rtmpdump and mplayer
#
rtmpdump -v \
-r ${url_parts[0]} \
--app ${url_parts[1]} \
--playpath ${url_parts[2]} \
-W $playerurl \
-C S:"" -C S:"" -C S:"" -C S:$authtoken \
--live\
| mplayer -試しに実行してみましょう。
root@volumio:/home/volumio# /root/play_radiko.sh NACK5
authtoken: iH_soUqLXMc6NU--Cy4FWA \noffset: 147207 length: 16 \npartialkey: f0/mKfqAmRu25GTjkc4oXA==
authentication success
areaid: JP11
RTMPDump v2.4
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
WARNING: No application or playpath in URL!
WARNING: You haven't specified an output file (-o filename), using stdout
Connecting ...
WARNING: Trying different position for server digest!
INFO: Connected...
MPlayer2 2.0-728-g2c378c7-4+b1 (C) 2000-2012 MPlayer Team
Cannot open file '/root/.mplayer/input.conf': No such file or directory
Failed to open /root/.mplayer/input.conf.
Cannot open file '/etc/mplayer/input.conf': No such file or directory
Failed to open /etc/mplayer/input.conf.
Playing -.
Reading from stdin...
Starting Live Stream
INFO: Metadata:
0.898 kB / 0.09 secDetected file format: FLV (Flash Video) (libavformat)
[flv @ 0x75b645b8]max_analyze_duration 5000000 reached
[flv @ 0x75b645b8]Estimating duration from bitrate, this may be inaccurate
[lavf] stream 0: audio (aac), -aid 0
64.526 kB / 10.54 secClip info:
StreamTitle:
Load subtitles in .
Selected audio codec: AAC (Advanced Audio Coding) [libavcodec]
AUDIO: 48000 Hz, 2 ch, floatle, 0.0 kbit/0.00% (ratio: 0->384000)
AO: [pulse] Init failed: Connection refused
[AO_ALSA] Format floatle is not supported by hardware, trying default.
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
[AO_ALSA] Unable to find simple control 'Master',0.
Video: no video
Starting playback...
^C1013.5 (16:53.4) of 0.0 (00.0) 9.6%DACドーターボードのジャックにイヤホンを接続して、放送が流れてくることを確認したら、cronに起動スクリプトを登録します。
root@volumio:/home/volumio# nano /etc/crontab
# /etc/crontab: system-wide crontab
# Unlike any other crontab you don't have to run the `crontab'
# command to install the new version when you edit this file
# and files in /etc/cron.d. These files also have username fields,
# that none of the other crontabs do.
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
# m h dom mon dow user command
17 * * * * root cd / && run-parts --report /etc/cron.hourly
25 6 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
47 6 * * 7 root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
52 6 1 * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )
#
58 5 * * * root /usr/bin/amixer set Digital 80\% > /dev/null 2>&1
59 5 * * * root /root/play_radiko.sh NACK5 > /dev/null 2>&1
30 6 * * * root /usr/bin/amixer set Digital 83\% > /dev/null 2>&1
45 6 * * * root /usr/bin/amixer set Digital 85\% > /dev/null 2>&1
50 6 * * * root killall mplayer
51 6 * * * root /usr/bin/amixer set Digital 80\% > /dev/null 2>&1段階的にボリュームを上げていますが、数値はアンプのボリュームとの兼ね合いで決定しています。
大丈夫そうなので、寝室に設置します。
明日の朝はちゃんと鳴るかな？