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| author | Haihao Xiang <haihao.xiang@intel.com> | 2024-01-16 13:23:11 +0800 |
|---|---|---|
| committer | Stefano Sabatini <stefasab@gmail.com> | 2024-01-20 12:46:33 +0100 |
| commit | 6e4d85a94ef05655f22a86317a44a42d1ae22d61 (patch) | |
| tree | fc203e0cd4b7361bd53d58fa009ca32cae6251ab | |
| parent | 6414ecd85754af9dc758d067841fdff079d1bd71 (diff) | |
| download | ffmpeg-6e4d85a94ef05655f22a86317a44a42d1ae22d61.tar.gz | |
doc/ffmpeg: update the documentation about vaapi device creation
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
| -rw-r--r-- | doc/ffmpeg.texi | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi index f034b7d4a2..5a214dd139 100644 --- a/doc/ffmpeg.texi +++ b/doc/ffmpeg.texi @@ -1379,6 +1379,29 @@ If not specified, it will attempt to open the default X11 display (@emph{$DISPLA and then the first DRM render node (@emph{/dev/dri/renderD128}), or the default DirectX adapter on Windows. +The following options are recognized: +@table @option +@item kernel_driver +When @var{device} is not specified, use this option to specify the name of the kernel +driver associated with the desired device. This option is available only when +the hardware acceleration method @emph{drm} and @emph{vaapi} are enabled. +@end table + +Examples: +@table @emph +@item -init_hw_device vaapi +Create a vaapi device on the default device. + +@item -init_hw_device vaapi:/dev/dri/renderD129 +Create a vaapi device on DRM render node @file{/dev/dri/renderD129}. + +@item -init_hw_device vaapi:1 +Create a vaapi device on DirectX adapter 1. + +@item -init_hw_device vaapi:,kernel_driver=i915 +Create a vaapi device on a device associated with kernel driver @samp{i915}. +@end table + @item vdpau @var{device} is an X11 display name. If not specified, it will attempt to open the default X11 display (@emph{$DISPLAY}). |