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Diffstat (limited to 'DOCS')
| -rw-r--r-- | DOCS/man/en/af.rst | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/DOCS/man/en/af.rst b/DOCS/man/en/af.rst index 34b54eb6c8..bb7f34cf62 100644 --- a/DOCS/man/en/af.rst +++ b/DOCS/man/en/af.rst @@ -184,7 +184,7 @@ Available filters are: Would amplify the sound in the upper and lower frequency region while canceling it almost completely around 1kHz. -``channels=nch[:nr:from1:to1:from2:to2:from3:to3:...]`` +``channels=nch[:routes]`` Can be used for adding, removing, routing and copying audio channels. If only ``<nch>`` is given, the default routing is used. It works as follows: If the number of output channels is greater than the number of input @@ -195,26 +195,33 @@ Available filters are: ``<nch>`` number of output channels (1-8) - ``<nr>`` - number of routes (1-8) - ``<from1:to1:from2:to2:from3:to3:...>`` - Pairs of numbers between 0 and 7 that define where to route each - channel. + ``<routes>`` + List of ``,`` separated routes, in the form ``from1-to1,from2-to2,...``. + Each pair defines where to route each channel. There can be at most + 8 routes. Without this argument, the default routing is used. Since + ``,`` is also used to separate filters, you must quote this argument + with ``[...]`` or similar. .. admonition:: Examples - ``mpv --af=channels=4:4:0:1:1:0:2:2:3:3 media.avi`` + ``mpv --af=channels=4:[0-1,1-0,0-2,1-3] media.avi`` Would change the number of channels to 4 and set up 4 routes that swap channel 0 and channel 1 and leave channel 2 and 3 intact. Observe that if media containing two channels were played back, channels 2 and 3 would contain silence but 0 and 1 would still be swapped. - ``mpv --af=channels=6:4:0:0:0:1:0:2:0:3 media.avi`` + ``mpv --af=channels=6:[0-0,0-1,0-2,0-3] media.avi`` Would change the number of channels to 6 and set up 4 routes that copy channel 0 to channels 0 to 3. Channel 4 and 5 will contain silence. + .. note:: + + You should probably not use this filter. If you want to change the + output channel layout, try the ``format`` filter, which can make mpv + automatically up- and downmix standard channel layouts. + ``format=format:srate:channels:out-format:out-srate:out-channels`` Force a specific audio format/configuration without actually changing the audio data. Keep in mind that the filter system might auto-insert actual |