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hwdec/cuda: Document how to activate cuda deinterlacing 

The latest changes to the decoder in ffmpeg enable frame doubled
deinterlacing so that it's actually useful. Let's document how to
use it.
This commit is contained in:
Philip Langdale 2016-09-21 19:58:05 -07:00 committed by wm4
parent 9df797575f
commit e300bfcf3a
1 changed files with 10 additions and 7 deletions
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17
DOCS/man/options.rst
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@ -689,14 +689,17 @@ Video
affect this additionally. This can give incorrect results even with
completely ordinary video sources.
``cuda`` is usually safe. Interlaced content will be weaved by the
decoder, and it may not be possible for a deinterlacing filter to
do anything useful with this. 10bit HEVC is currently not
supported but maybe we can add support after CUDA 8 is released (and
it will be rounded down to 8 bits).
``cuda`` is usually safe. Interlaced content can be deinterlaced by
the decoder, which is useful as there is no other deinterlacing
mechanism in the opengl output path. To use this deinterlacing you
must pass the option: ``vd-lavc-o=deint=[weave|bob|adaptive]``. Pass
``weave`` to not attempt any deinterlacing.
10bit HEVC is currently not supported but maybe we can add support
after CUDA 8 is released (and it will be rounded down to 8 bits).
``cuda-copy`` has the same limitations as ``cuda`` - particularly
its handling of deinterlacing.
``cuda-copy`` has the same behaviour as ``cuda`` - including the ability
to deinterlace inside the decoder. However, traditional deinterlacing
filters can be used in this case.
All other methods, in particular the copy-back methods (like
``dxva2-copy`` etc.) are either fully safe, or not worse than software