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manpage: clarify some --vf options

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In particular, mention deprecated things.
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wm4 2018-01-31 04:13:00 +01:00
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2 changed files with 28 additions and 16 deletions
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DOCS/man/af.rst
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@ -5,7 +5,8 @@ Audio filters allow you to modify the audio stream and its properties. The
syntax is:
``--af=...``
Setup a chain of audio filters. See ``--vf`` for the syntax.
Setup a chain of audio filters. See ``--vf`` (`VIDEO FILTERS`_) for the
full syntax.
.. note::

41
DOCS/man/vf.rst
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@ -1,8 +1,11 @@
VIDEO FILTERS
=============
Video filters allow you to modify the video stream and its properties. The
syntax is:
Video filters allow you to modify the video stream and its properties. All of
the information described in this section applies to audio filters as well
(generally using the prefix ``--af`` instead of ``--vf``).
The exact syntax is:
``--vf=<filter1[=parameter1:parameter2:...],filter2,...>``
Setup a chain of video filters. This consists on the filter name, and an
@ -41,11 +44,18 @@ syntax is:
the ``lavfi`` filter, which uses a very similar syntax as mpv (MPlayer
historically) to specify filters and their parameters.
Filters can be manipulated at run time. You can use ``@`` labels as described
above in combination with the ``vf`` command (see `COMMAND INTERFACE`_) to get
more control over this. Initially disabled filters with ``!`` are useful for
this as well.
You can also set defaults for each filter. The defaults are applied before the
normal filter parameters.
normal filter parameters. This is deprecated and never worked for the
libavfilter bridge.
``--vf-defaults=<filter1[=parameter1:parameter2:...],filter2,...>``
Set defaults for each filter.
Set defaults for each filter. (Deprecated. ``--af-defaults`` is deprecated
as well.)
.. note::
@ -75,15 +85,20 @@ normal filter parameters.
Video filters are managed in lists. There are a few commands to manage the
filter list.
``--vf-add=<filter1[,filter2,...]>``
Appends the filters given as arguments to the filter list.
``--vf-add=filter``
Appends the filter given as arguments to the filter list. (Passing multiple
filters is currently still possible, but deprecated.)
``--vf-pre=<filter1[,filter2,...]>``
Prepends the filters given as arguments to the filter list.
``--vf-pre=filter``
Prepends the filters given as arguments to the filter list. (Passing
multiple filters is currently still possible, but deprecated.)
``--vf-del=<index1[,index2,...]>``
Deletes the filters at the given indexes. Index numbers start at 0,
negative numbers address the end of the list (-1 is the last).
``--vf-del=filter``
Deletes the filter. The filter can even given the way it was added (filter
name and its full argument list), by label (prefixed with ``@``), or as
index number. Index numbers start at 0, negative numbers address the end of
the list (-1 is the last). (Passing multiple filters is currently still
possible, but deprecated.)
``--vf-clr``
Completely empties the filter list.
@ -94,10 +109,6 @@ With filters that support it, you can access parameters by their name.
Prints the parameter names and parameter value ranges for a particular
filter.
``--vf=<filter=named_parameter1=value1[:named_parameter2=value2:...]>``
Sets a named parameter to the given value. Use on and off or yes and no to
set flag parameters.
Available mpv-only filters are:
``format=fmt=<value>:colormatrix=<value>:...``