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.. _audio_outputs:
AUDIO OUTPUT DRIVERS
====================
Audio output drivers are interfaces to different audio output facilities. The
syntax is:
--ao=<driver1[:suboption1[=value]:...],driver2,...[,]>
Specify a priority list of audio output drivers to be used.
If the list has a trailing ',' MPlayer will fall back on drivers not contained
in the list. Suboptions are optional and can mostly be omitted.
*NOTE*: See ``--ao=help`` for a list of compiled-in audio output drivers.
*EXAMPLE*:
- ``--ao=alsa,oss,`` Try the ALSA driver, then the OSS driver, then others.
- ``--ao=alsa:noblock:device=hw=0.3`` Sets noblock-mode and the device-name
as first card, fourth device.
Available audio output drivers are:
alsa
ALSA 0.9/1.x audio output driver
noblock
Sets noblock-mode.
device=<device>
Sets the device name. Replace any ',' with '.' and any ':' with '=' in
the ALSA device name. For hwac3 output via S/PDIF, use an "iec958" or
"spdif" device, unless you really know how to set it correctly.
alsa5
ALSA 0.5 audio output driver
oss
OSS audio output driver
<dsp-device>
Sets the audio output device (default: ``/dev/dsp``).
<mixer-device>
Sets the audio mixer device (default: ``/dev/mixer``).
<mixer-channel>
Sets the audio mixer channel (default: pcm).
sdl (SDL only)
highly platform independent SDL (Simple Directmedia Layer) library audio
output driver
<driver>
Explicitly choose the SDL audio driver to use (default: let SDL
choose).
jack
audio output through JACK (Jack Audio Connection Kit)
port=<name>
Connects to the ports with the given name (default: physical ports).
name=<client
Client name that is passed to JACK (default: MPlayer [<PID>]). Useful
if you want to have certain connections established automatically.
(no-)estimate
Estimate the audio delay, supposed to make the video playback smoother
(default: enabled).
(no-)autostart
Automatically start jackd if necessary (default: disabled). Note that
this seems unreliable and will spam stdout with server messages.
nas
audio output through NAS
coreaudio (Mac OS X only)
native Mac OS X audio output driver
device_id=<id>
ID of output device to use (0 = default device)
help
List all available output devices with their IDs.
openal
Experimental OpenAL audio output driver
pulse
PulseAudio audio output driver
[<host>][:<output sink>]
Specify the host and optionally output sink to use. An empty <host>
string uses a local connection, "localhost" uses network transfer
(most likely not what you want).
sun (Sun only)
native Sun audio output driver
<device>
Explicitly choose the audio device to use (default: ``/dev/audio``).
win32 (Windows only)
native Windows waveout audio output driver
dsound (Windows only)
DirectX DirectSound audio output driver
device=<devicenum>
Sets the device number to use. Playing a file with ``-v`` will show a
list of available devices.
ivtv (IVTV only)
IVTV specific MPEG audio output driver. Works with ``--ac=hwmpa`` only.
v4l2 (requires Linux 2.6.22+ kernel)
Audio output driver for V4L2 cards with hardware MPEG decoder.
mpegpes (DVB only)
Audio output driver for DVB cards that writes the output to an MPEG-PES
file if no DVB card is installed.
card=<1-4>
DVB card to use if more than one card is present. If not specified
MPlayer will search the first usable card.
file=<filename>
output filename
null
Produces no audio output but maintains video playback speed. Use
``--nosound`` for benchmarking.
pcm
raw PCM/wave file writer audio output
(no-)waveheader
Include or do not include the wave header (default: included). When
not included, raw PCM will be generated.
file=<filename>
Write the sound to <filename> instead of the default
``audiodump.wav``. If nowaveheader is specified, the default is
``audiodump.pcm``.
rsound
audio output to an RSound daemon
host=<name/path>
Set the address of the server (default: localhost). Can be either a
network hostname for TCP connections or a Unix domain socket path
starting with '/'.
port=<number>
Set the TCP port used for connecting to the server (default: 12345).
Not used if connecting to a Unix domain socket.
plugin
plugin audio output driver
|
