diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/mpd.conf.5 | 90 |
1 files changed, 44 insertions, 46 deletions
diff --git a/doc/mpd.conf.5 b/doc/mpd.conf.5 index 88c9a6d85..3dc4b0e2e 100644 --- a/doc/mpd.conf.5 +++ b/doc/mpd.conf.5 @@ -55,8 +55,7 @@ the "kill" command. When mpd is restarted, it will read the state file and restore the state of mpd (including the playlist). .TP .B audio_output -See \fBREQUIRED AUDIO OUTPUT PARAMETERS\fP and \fBOPTIONAL AUDIO OUTPUT -PARAMETERS\fP. +See the various \fBAUDIO OUTPUT PARAMETERS\fP sections below. .TP .B audio_output_format <sample_rate:bits:channels> This specifies the sample rate, bits per sample, and number of channels of @@ -187,10 +186,8 @@ when saving playlists. The default is "no". .SH REQUIRED AUDIO OUTPUT PARAMETERS .TP .B type <type> -This specifies the audio output type. Depending on what audio output support -mpd was built with possible values could be "alsa", "oss", "osx", "pulse", -"mvp", "ao", or "shout" (see \fBREQUIRED SHOUT OUTPUT PARAMETERS\fP and -\fBOPTIONAL SHOUT OUTPUT PARAMETERS\fP). +This specifies the audio output type. See the list of supported outputs in mpd +--version for possible values. .TP .B name <name> This specifies a unique name for the audio output. @@ -201,61 +198,62 @@ This specifies the sample rate, bits per sample, and number of channels of audio that is sent to the audio output device. See documentation for the \fBaudio_output_format\fP parameter for more details. The default is to use whatever audio format is passed to the audio output. +.SH OPTIONAL ALSA OUTPUT PARAMETERS +.TP +.B device <dev> +This specifies the device to use for audio output. The default is "hw:0,0". +.TP +.B use_mmap <yes or no> +Setting this allows you to use memory-mapped I/O. Certain hardware setups may +benefit from this, but most do not. Most users do not need to set this. +.TP +.B buffer_time <time in microseconds> +This sets the length of the hardware sample buffer in microseconds. Increasing +it may help to reduce or eliminate skipping on certain setups. Most users do +not need to change this. The default is 500000 microseconds (0.5 seconds). +.TP +.B period_time <time in microseconds> +This sets the time between hardware sample transfers in microseconds. +Increasing this can reduce CPU usage while lowering it can reduce underrun +errors on bandwidth-limited devices. Some users have reported good results +with this set to 50000, but not all devices support values this high. Most +users do not need to change this. The default is 256000000 / sample_rate(kHz), +or 5804 microseconds for CD-quality audio. +.SH OPTIONAL OSS OUTPUT PARAMETERS .TP .B device <dev> -This specifies the device to use for audio output. Used by the alsa and oss -output types. The default for oss is "/dev/dsp"; the default for alsa is -"hw:0,0". +This specifies the device to use for audio output. The default is "/dev/dsp". +.SH OPTIONAL PULSE OUTPUT PARAMETERS .TP .B server <server list> -A space separated list of servers to try to connect to. Used only by the pulse -audio output. See <\fBhttp://www.pulseaudio.org/wiki/ServerStrings\fP> for -more details. The default is to let PulseAudio choose a server. +A space separated list of servers to try to connect to. See +<\fBhttp://www.pulseaudio.org/wiki/ServerStrings\fP> for more details. The +default is to let PulseAudio choose a server. .TP .B sink <sink> -The sink to output to. Used only by the pulse audio output. The default is to -let PulseAudio choose a sink. +The sink to output to. The default is to let PulseAudio choose a sink. +.SH OPTIONAL AO OUTPUT PARAMETERS .TP .B driver <driver> -This specifies the libao driver to use for audio output. Used only by the ao -output type. Possible values depend on what libao drivers are available. See +This specifies the libao driver to use for audio output. Possible values +depend on what libao drivers are available. See <\fBhttp://www.xiph.org/ao/doc/drivers.html\fP> for information on some commonly used drivers. Typical values for Linux include "oss" and "alsa09". The default is "default", which causes libao to select an appropriate plugin. .TP .B options <opts> -This specifies the options to use for the selected libao driver. Used only by -the ao output type. For oss, the only option available is "dsp". For alsa09, -the available options are: "dev", "buf_size", and "periods". See -<\fBhttp://www.xiph.org/ao/doc/drivers.html\fP> for available options for some -commonly used drivers. Options are assigned using "=", and ";" is used to -separate options. An example for oss: "dsp=/dev/dsp". An example for alsa09: -"dev=hw:0,0;buf_size=4096". The default is "". +This specifies the options to use for the selected libao driver. For oss, the +only option available is "dsp". For alsa09, the available options are: "dev", +"buf_size", and "periods". See <\fBhttp://www.xiph.org/ao/doc/drivers.html\fP> +for available options for some commonly used drivers. Options are assigned +using "=", and ";" is used to separate options. An example for oss: +"dsp=/dev/dsp". An example for alsa09: "dev=hw:0,0;buf_size=4096". The +default is "". .TP .B write_size <size in bytes> -This specifies how many bytes to write to the audio device at once. Used only -by the ao output type. This parameter is to work around a bug in older -versions of libao on sound cards with very small buffers. The default is 1024. -.SH OPTIONAL ALSA OUTPUT PARAMETERS -.TP -.B use_mmap <yes or no> -Setting this allows you to use memory-mapped I/O. Certain hardware setups -may benefit from this, but most do not. -Most users do not need to set this. -.TP -.B buffer_time <time in microseconds> -This sets the length of the hardware sample buffer in microseconds. -Increasing it may help to reduce or eliminate skipping on certain setups. -Most users do not need to change this. -The default is 500000 microseconds (0.5 seconds). -.TP -.B period_time <time in microseconds> -This sets the time between hardware sample transfers in microseconds. -Increasing this can reduce CPU usage while lowering it can reduce underrun -errors on bandwidth-limited devices. Some users have reported good results -with this set to 50000, but not all devices support values this high. -Most users do not need to change this. -The default is 256000000 / sample_rate(kHz), or 5804us for CD-quality audio. +This specifies how many bytes to write to the audio device at once. This +parameter is to work around a bug in older versions of libao on sound cards +with very small buffers. The default is 1024. .SH REQUIRED SHOUT OUTPUT PARAMETERS .TP .B name <name> |