[FFmpeg-devel] [PATCH v3 2/3] Update -device argument usage in VAAPI documentation to indicate now also DirectX Adapter indices are supported.

[Sil Vilerino <sivileri-at-microsoft.com@ffmpeg.org>]

Initial review at https://github.com/intel-media-ci/ffmpeg/pull/619/
Reviewed-by: Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>
Reviewed-by: Wu, Tong1 <tong1.wu@intel.com>
---
 doc/ffmpeg.texi      | 5 +++--
 fftools/ffmpeg_opt.c | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
index d433d60ce9..a79a9a694d 100644
--- a/doc/ffmpeg.texi
+++ b/doc/ffmpeg.texi
@@ -1171,9 +1171,10 @@ Choose the first device and use the primary device context.
 @var{device} is the number of the Direct3D 11 display adapter.
 
 @item vaapi
-@var{device} is either an X11 display name or a DRM render node.
+@var{device} is either an X11 display name, a DRM render node or a DirectX adapter index.
 If not specified, it will attempt to open the default X11 display (@emph{$DISPLAY})
-and then the first DRM render node (@emph{/dev/dri/renderD128}).
+and then the first DRM render node (@emph{/dev/dri/renderD128}), or the default
+DirectX adapter on Windows.
 
 @item vdpau
 @var{device} is an X11 display name.
diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 055275d813..043cf539a5 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -1758,7 +1758,7 @@ const OptionDef options[] = {
 
 #if CONFIG_VAAPI
     { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
-        "set VAAPI hardware device (DRM path or X11 display name)", "device" },
+        "set VAAPI hardware device (DirectX adapter index, DRM path or X11 display name)", "device" },
 #endif
 
 #if CONFIG_QSV
-- 
2.39.2.vfs.0.0

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