Darkice setup
Darkice handles the nitty gritty of reading audio from the sound card and feeding it to Icecast. You can create multiple streams with different bit rate from a single input. The configuration detailed here creates two streams, one high bandwidth users and one for low bandwidth users.
Here's my config file from /usr/local/etc/darkice.cfg:
[general]
duration = 0 # duration of encoding, in seconds. 0 means forever
bufferSecs = 5 # size of internal slip buffer, in seconds
reconnect = yes # reconnect to the server(s) if disconnected
# this section describes the audio input that will be streamed
[input]
device = /dev/dsp # OSS DSP soundcard device for the audio input
sampleRate = 44100 # sample rate in Hz. try 11025, 22050 or 44100
bitsPerSample = 16 # bits per sample. try 16
channel = 1 # channels. 1 = mono, 2 = stereo
[icecast2-0]
format = mp3
bitrateMode = cbr
bitrate = 128
quality = 0.8
server = localhost
mountPoint = high
port = 8000
password = itsasecret
name = KPSU High-bandwith Stream
description = Live stream of the KPSU broadcast.
url = http://kpsu.org
genre = College Radio
public = yes
[icecast2-1]
format = mp3
sampleRate = 22050
bitrateMode = cbr
bitrate = 32
quality = 0.8
server = localhost
mountPoint = low
port = 8000
password = itsasecret
name = KPSU Low-bandwith Stream
description = Live stream of the KPSU broadcast.
url = http://kpsu.org
genre = College Radio
public = yesYou'll need a init script to run Darkice as a daemon. I hacked together the following for /usr/local/etc/rc.d/darkice.sh:
#!/bin/sh
# PROVIDE: darkice
# REQUIRE: DAEMON
# BEFORE: login
# KEYWORD: shutdown
# Add the following line to /etc/rc.conf to enable `darkice'. This requires
# a working configuration in /usr/local/etc/darkice.cfg.
#
#darkice_enable="YES"
#
. "/etc/rc.subr"
name="darkice"
rcvar=`set_rcvar`
command="/usr/local/bin/darkice"
command_args="1>/dev/null"
required_files="/usr/local/etc/$name.cfg"
# read configuration and set defaults
load_rc_config "$name"
: ${darkice_enable="NO"}
: ${darkice_flags="-v 0 -c ${required_files} &"}
run_rc_command "$1"for you, a photo
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