mirror of
https://github.com/mpv-player/mpv
synced 2024-12-28 01:52:19 +00:00
c3cc38e4c4
This mainly serves as a fallback for platforms where nothing better is available; also as a debugging help. Both the audio and video driver are not first class - the audio driver lacks delay detection, and the video driver only supports a single YUV color space. Configure options: --disable-sdl2 to disable SDL 2.0+ detection, --disable-sdl to disable SDL 1.2+ detection. Both options need to be specified to turn off SDL support entirely.
135 lines
4.4 KiB
ReStructuredText
135 lines
4.4 KiB
ReStructuredText
.. _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 ',' mpv 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.
|
|
|
|
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).
|
|
|
|
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: mpv [<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.
|
|
|
|
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).
|
|
|
|
portaudio
|
|
PortAudio audio output driver. This works on all platforms, and has extensive
|
|
MS Windows support.
|
|
|
|
device
|
|
Specify the subdevice to use. Giving ``help`` as device name lists all
|
|
devices found by PortAudio. Devices can be given as numeric values,
|
|
starting from ``1``.
|
|
|
|
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.
|
|
|
|
sdl
|
|
SDL 1.2+ audio output driver. Should work everywhere where SDL 1.2 builds,
|
|
but may require the SDL_AUDIODRIVER environment variable to be set
|
|
appropriately for your system.
|
|
|
|
buflen=<length>
|
|
Sets the audio buffer length in seconds. Is used only approximately,
|
|
or even disaregarded entirely by the sound system. Playing a file with
|
|
``-v`` will show the requested and obtained exact buffer size. A value
|
|
of 0 selects the sound system default.
|
|
|
|
bufcnt=<count>
|
|
Sets the number of extra audio buffers in mpv. Usually needs not be
|
|
changed.
|
|
|
|
null
|
|
Produces no audio output but maintains video playback speed. Use
|
|
``--no-audio`` 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.
|