On Fri, 2020-08-21 at 05:48 +0000, Soft Works wrote:
> > -----Original Message-----
> > From: ffmpeg-devel <ffmpeg-devel-boun...@ffmpeg.org> On Behalf Of
> > Haihao Xiang
> > Sent: Friday, August 21, 2020 7:23 AM
> > To: ffmpeg-devel@ffmpeg.org
> > Cc: Haihao Xiang <haihao.xi...@intel.com>
> > Subject: [FFmpeg-devel] [PATCH v2 1/2] qsv: needn't load user plugin since
> > libmfx 1.28
> >
> > MFXVideoUSER_Load call is redundant since libmfx 1.28
> > ---
> > Fixed merge conflict when applying this patch by 'git am'
> >
> > libavcodec/qsv.c | 9 ++++++++-
> > 1 file changed, 8 insertions(+), 1 deletion(-)
> >
> > diff --git a/libavcodec/qsv.c b/libavcodec/qsv.c index
> > 17720070f1..56a30ad642 100644
> > --- a/libavcodec/qsv.c
> > +++ b/libavcodec/qsv.c
> > @@ -19,7 +19,6 @@
> > */
> >
> > #include <mfx/mfxvideo.h>
> > -#include <mfx/mfxplugin.h>
> > #include <mfx/mfxjpeg.h>
> >
> > #include <stdio.h>
> > @@ -36,6 +35,10 @@
> > #include "avcodec.h"
> > #include "qsv_internal.h"
> >
> > +#if !QSV_VERSION_ATLEAST(1, 28)
> > +#include <mfx/mfxplugin.h>
> > +#endif
> > +
> > #if QSV_VERSION_ATLEAST(1, 12)
> > #include "mfx/mfxvp8.h"
> > #endif
> > @@ -295,6 +298,9 @@ enum AVPictureType ff_qsv_map_pictype(int
> > mfx_pic_type) static int qsv_load_plugins(mfxSession session, const char
> > *load_plugins,
> > void *logctx) {
> > +#if QSV_VERSION_ATLEAST(1, 28)
> > + return 0;
> > +#else
> > if (!load_plugins || !*load_plugins)
> > return 0;
> >
> > @@ -340,6 +346,7 @@ load_plugin_fail:
> > }
> >
> > return 0;
> > +#endif
> >
> > }
>
>
> Hi,
>
> Are you sure this check is right? You are checking the libmfx version
> against which ffmpeg is compiled.
>
> What happens, when a graphics driver supports only API level 1.21?
>
I understand your concern, however lots of features in FFmpeg are
disabled/enabled against api version at compile-time.
Thanks
Haihao
> Regards,
> softworkz
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