Re: [FFmpeg-devel] [PATCH v2 2/2] doc/ffmpeg: update the documentation about vaapi device creation

["Xiang, Haihao" <haihao.xiang-at-intel.com@ffmpeg.org>]

On Sa, 2024-01-06 at 11:54 +0100, Stefano Sabatini wrote:
> On date Friday 2024-01-05 10:33:52 +0800, Xiang, Haihao wrote:
> > From: Haihao Xiang <haihao.xiang@intel.com>
> > 
> > Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
> > ---
> >  doc/ffmpeg.texi | 23 +++++++++++++++++++++++
> >  1 file changed, 23 insertions(+)
> > 
> > diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi
> > index f095f402bd..8fb165c5df 100644
> > --- a/doc/ffmpeg.texi
> > +++ b/doc/ffmpeg.texi
> > @@ -1385,6 +1385,29 @@ 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 only available
> > when
> > +@emph{libdrm} works on Linux.
> 
> Optional: might be good to specify a method to verify this condition.
> 
> > +@end table
> > +
> > +Examples:
> > +@table @emph
> > +@item -init_hw_device vaapi
> > +Create a vaapi device on the default device
> 
> missing final dot here and below
> 
> > +
> > +@item -init_hw_device vaapi:/dev/dri/renderD129
> > +Create a vaapi device on DRM render node /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
> > +
> 
> Looks good otherwise (but again, since hwaccels are probably
> independent from ffmpeg they should be probably moved to a dedicated
> manual).
> 

Thanks for your comment, I updated this patch in v3
https://ffmpeg.org/pipermail/ffmpeg-devel/2024-January/319689.html 

BRs
Haihao

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