Diffstat (limited to 'DOCS/man/options.rst')
1 files changed, 14 insertions, 5 deletions
diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst
index 19f972a891..7b24ce3480 100644
@@ -750,7 +750,7 @@ Video
likely works with Intel GPUs only. It also requires the opengl EGL backend.
The ``cuda`` and ``cuda-copy`` modes provides deinterlacing in the decoder
- which is useful as there is no other deinterlacing mechanism in the opengl
+ which is useful as there is no other deinterlacing mechanism in the gpu
output path. To use this deinterlacing you must pass the option:
Pass ``weave`` (or leave the option unset) to not attempt any
@@ -779,6 +779,11 @@ Video
codecs. See ``--hwdec-codecs`` to enable hardware decoding for more
+ .. note::
+ Most non-copy methods only work with the OpenGL GPU backend. Currently,
+ only the ``nvdec`` and ``cuda`` methods work with Vulkan.
.. admonition:: Quality reduction with hardware decoding
In theory, hardware decoding does not reduce video quality (at least
@@ -888,14 +893,18 @@ Video
format, with likely no advantages.
- Choose the GPU device used for decoding when using the ``cuda`` hwdec.
+ Choose the GPU device used for decoding when using the ``cuda`` or
+ ``nvdec`` hwdecs with the OpenGL GPU backend.
- By default, the device that is being used to provide OpenGL output will
+ By default, the device that is being used to provide ``gpu`` output will
also be used for decoding (and in the vast majority of cases, only one
GPU will be present).
- Note that when using the ``cuda-copy`` hwdec, a different option must be
- passed: ``--vd-lavc-o=gpu=<0..>``.
+ Note that when using the ``cuda-copy`` or ``nvdec-copy`` hwdec, a
+ different option must be passed: ``--vd-lavc-o=gpu=<0..>``.
+ Note that this option is not available with the Vulkan GPU backend. With
+ Vulkan, decoding must always happen on the display device.
Choose the DRM device for ``vaapi-copy``. This should be the path to a