manpage: mention rotate limitations with hwdec

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Guido Cella 2021-03-02 14:47:09 +01:00 committed by avih
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@ -1489,6 +1489,10 @@ Video
is added to the rotation metadata, which means the value ``0`` would rotate
the video according to the rotation metadata.)
When using hardware decoding without copy-back, only 90° steps work, while
software decoding and hardware decoding methods that copy the video back to
system memory support all values between 0 and 359.
``--video-zoom=<value>``
Adjust the video display scale factor by the given value. The parameter is
given log 2. For example, ``--video-zoom=0`` is unscaled,