Internet Radio

[The_newGuy]

Hey guys,
i want to build an internet radio and change the stations via a php skript.
But the user www-data is not able to even start a radio:

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pi@raspberrypi ~ $ ./bash/play_technobase.sh
play WARN alsa: can't encode 0-bit Unknown or not applicable

http://listen.technobase.fm/tunein-mp3-asx:

  Encoding: MPEG audio
  Channels: 2 @ 16-bit
Samplerate: 44100Hz
Replaygain: off
  Duration: unknown

In:0.00% 00:00:03.25 [00:00:00.00] Out:143k  [-=====|=====-] Hd:0.6 Clip:0
Aborted.

vs.

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pi@raspberrypi ~ $ sudo -u www-data ./bash/play_technobase.sh
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4720:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM default
Segmentation fault

same with playing a video:

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pi@raspberrypi ~ $ omxplayer media/test.h264
Video codec omx-h264 width 1920 height 1080 profile 77 fps 25.000000
Subtitle count: 0, state: off, index: 1, delay: 0
V:PortSettingsChanged: 1920x1080@25.00 interlace:0 deinterlace:0 par:1.00 layer:0
have a nice day ;)

vs.

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 sudo -u www-data omxplayer media/test.h264
* failed to open vchiq instance
(than it crashes)

while

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pi@raspberrypi ~ $ sudo -u www-data ls

works.

how can i fix this problem?

[Douglas6]

I'm guessing: add the www-data user to the 'audio' group?

[Richard-TX]

You could avoid the hassle and just go with mpd/mpc

Once you have mpd running, you can control it from your own web page, android phone, iphone, windows, a linux desktop, etc. Load up as many radio stations as you want and go nuts. All of the mpc (clients) programs can control station selection, volume, etc.

apt-get install mpd mpc

[The_newGuy]

I'm guessing: add the www-data user to the 'audio' group?

yes and to the 'video' group.
Thanks Alot