Squeezelite v1.8, Copyright 2012-2015 Adrian Smith, 2015-2016 Ralph Irving.
See -t for license terms

Usage: squeezelite [options]

-s <server>[:<port>]        Connect to specified server, otherwise uses autodiscovery to find server
-o <output device>        Specify output device, default "default", - = output to stdout
-l                         List output devices
-a <b>:<p>:<f>:<m>        Specify ALSA params to open output device, b = buffer time in ms or size in bytes, p = period count or size in bytes, f sample format (16|24|24_3|32), m = use mmap (0|1)
-a <f>                Specify sample format (16|24|32) of output file when using -o - to output samples to stdout (interleaved little endian only)
-b <stream>:<output>        Specify internal Stream and Output buffer sizes in Kbytes
-c <codec1>,<codec2>        Restrict codecs to those specified, otherwise load all available codecs; known codecs: flac,pcm,mp3,ogg,aac,wma,alac,dsd (mad,mpg for specific mp3 codec)
-C <timeout>                Close output device when idle after timeout seconds, default is to keep it open while player is 'on'
-d <log>=<level>        Set logging level, logs: all|slimproto|stream|decode|output|ir, level: info|debug|sdebug
-G <Rpi GPIO#>:<H/L>        Specify the BCM GPIO# to use for Amp Power Relay and if the output should be Active High or Low
-e <codec1>,<codec2>        Explicitly exclude native support of one or more codecs; known codecs: flac,pcm,mp3,ogg,aac,wma,alac,dsd (mad,mpg for specific mp3 codec)
-f <logfile>                Write debug to logfile
-i [<filename>]        Enable lirc remote control support (lirc config file ~/.lircrc used if filename not specified)
-m <mac addr>                Set mac address, format: aa:bb:cc:12:34:56
-M <modelname>        Set the squeezelite player model name sent to the server (default: SqueezeLite)
-n <name>                Set the player name
-N <filename>                Store player name in filename to allow server defined name changes to be shared between servers (not supported with -n)
-W                        Read wave and aiff format from header, ignore server parameters
-p <priority>                Set real time priority of output thread (1-99)
-P <filename>                Store the process id (PID) in filename
-r <rates>[:<delay>]        Sample rates supported, allows output to be off when squeezelite is started; rates = <maxrate>|<minrate>-<maxrate>|<rate1>,<rate2>,<rate3>; delay = optional delay switching rates in ms
-S <Power Script>        Absolute path to script to launch on power commands from LMS
-R -u [params]        Resample, params = <recipe>:<flags>:<attenuation>:<precision>:<passband_end>:<stopband_start>:<phase_response>,
                         recipe = (v|h|m|l|q)(L|I|M)(s) [E|X], E = exception - resample only if native rate not supported, X = async - resample to max rate for device, otherwise to max sync rate
                         flags = num in hex,
                         attenuation = attenuation in dB to apply (default is -1db if not explicitly set),
                         precision = number of bits precision (NB. HQ = 20. VHQ = 28),
                         passband_end = number in percent (0dB pt. bandwidth to preserve. nyquist = 100%),
                         stopband_start = number in percent (Aliasing/imaging control. > passband_end),
                         phase_response = 0-100 (0 = minimum / 50 = linear / 100 = maximum)
-D [delay]                Output device supports DSD over PCM (DoP), delay = optional delay switching between PCM and DoP in ms
-v                         Visualiser support
-L                         List volume controls for output device
-U <control>                Unmute ALSA control and set to full volume (not supported with -V)
-V <control>                Use ALSA control for volume adjustment, otherwise use software volume adjustment
-z                         Daemonize
-Z <rate>                Report rate to server in helo as the maximum sample rate we can support
-t                         License terms
-?                         Display this help text

Build options: LINUX ALSA EVENTFD RESAMPLE FFMPEG VISEXPORT IR GPIO DSD LINKALL