|
|
樓主 |
發表於 2014-8-7 10:19
|
顯示全部樓層
karsonkwan 發表於 2014-8-7 05:40 
獨立USB供電係咩意思？alsa buffer 係邊到set 呀師兄，減到幾多？
因為小弟用 squeezelite，舉例說明如下：
https://code.google.com/p/squeezelite/
Squeezelite v1.6.3, Copyright 2012-2014 Adrian Smith. 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)
-d <log>=<level> Set logging level, logs: all|slimproto|stream|decode|output, level: info|debug|sdebug
-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
-m <mac addr> Set mac address, format: ab:cd:ef:12:34:56
-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)
-p <priority> Set real time priority of output thread (1-99)
-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
-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
-z Daemonize
-t License terms
Build options: LINUX ALSA EVENTFD RESAMPLE FFMPEG VISEXPORT DSD
-a 可以設定ALSA使用的buffer，
-b 可以設定 network buffer。
小弟的設定如下：- /bin/nice --20 /root/squeezelite-mips-ar71xx -o hw:0,0 -a 4096:1024:32:1 -m `ifconfig eth1 | grep HWaddr | awk '{print $5}'` -n `cat /proc/sys/kernel/hostname` -D -d all=info -z
http://ifi-audio.com/portfolio-view/micro-iusbpower/
|
|
[複製鏈接]
發表於 2014-8-6 12:39
...
