diff options
Diffstat (limited to 'DOCS/man')
-rw-r--r-- | DOCS/man/options.rst | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst index 3362cd142a..ce3bea5a15 100644 --- a/DOCS/man/options.rst +++ b/DOCS/man/options.rst @@ -1233,17 +1233,18 @@ Video ``--cuda-decode-device=<auto|0..>`` Choose the GPU device used for decoding when using the ``cuda`` or - ``nvdec`` hwdecs with the OpenGL GPU backend. + ``nvdec`` hwdecs with the OpenGL GPU backend, and with the ``cuda-copy`` + or ``nvdec-copy`` hwdecs in all cases. - 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). + For the OpenGL GPU backend, the default device used for decoding is the one + being used to provide ``gpu`` output (and in the vast majority of cases, + only one GPU will be present). - Note that when using the ``cuda-copy`` or ``nvdec-copy`` hwdec, a - different option must be passed: ``--vd-lavc-o=gpu=<0..>``. + For the ``copy`` hwdecs, the default device will be the first device + enumerated by the CUDA libraries - however that is done. - Note that this option is not available with the Vulkan GPU backend. With - Vulkan, decoding must always happen on the display device. + For the Vulkan GPU backend, decoding must always happen on the display + device, and this option has no effect. ``--vaapi-device=<device file>`` Choose the DRM device for ``vaapi-copy``. This should be the path to a |