[FFmpeg-devel] [PATCH] lavf/qsv_scale: add interpolation methods support
Xiang, Haihao
haihao.xiang at intel.com
Thu Dec 10 14:44:07 EET 2020
On Thu, 2020-12-10 at 14:52 +0300, Artem Galin wrote:
> On Wed, 2 Dec 2020 at 04:25, Xiang, Haihao <haihao.xiang at intel.com> wrote:
>
> > On Tue, 2020-12-01 at 22:42 +0000, Artem Galin wrote:
> > > Since 1.33 API version
> > >
> >
> >
https://github.com/Intel-Media-SDK/MediaSDK/blob/master/api/include/mfxstructures.h#L2088
> > >
> > > Signed-off-by: Artem Galin <artem.galin at intel.com>
> > > ---
> > > libavfilter/vf_scale_qsv.c | 17 +++++++++++++++++
> > > 1 file changed, 17 insertions(+)
> > >
> > > diff --git a/libavfilter/vf_scale_qsv.c b/libavfilter/vf_scale_qsv.c
> > > index 5064dcbb60..1a6121c295 100644
> > > --- a/libavfilter/vf_scale_qsv.c
> > > +++ b/libavfilter/vf_scale_qsv.c
> > > @@ -70,6 +70,7 @@ enum var_name {
> > > };
> > >
> > > #define QSV_HAVE_SCALING_CONFIG QSV_VERSION_ATLEAST(1, 19)
> > > +#define QSV_HAVE_INTERPOLATION_METHOD QSV_VERSION_ATLEAST(1, 33)
> > >
> > > typedef struct QSVScaleContext {
> > > const AVClass *class;
> > > @@ -95,6 +96,7 @@ typedef struct QSVScaleContext {
> > > mfxExtVPPScaling scale_conf;
> > > #endif
> > > int mode;
> > > + int interpmethod;
> > >
> > > mfxExtBuffer *ext_buffers[1 + QSV_HAVE_SCALING_CONFIG];
> > > int num_ext_buf;
> > > @@ -409,6 +411,10 @@ static int init_out_session(AVFilterContext *ctx)
> > > s->scale_conf.Header.BufferId = MFX_EXTBUFF_VPP_SCALING;
> > > s->scale_conf.Header.BufferSz = sizeof(mfxExtVPPScaling);
> > > s->scale_conf.ScalingMode = s->mode;
> > > +#if QSV_HAVE_INTERPOLATION_METHOD
> > > + s->scale_conf.InterpolationMethod = s->interpmethod;
> > > + av_log(ctx, AV_LOG_VERBOSE, "Interpolation method: %d\n", s-
> > > > interpmethod);
> > >
> > > +#endif
> > > s->ext_buffers[s->num_ext_buf++] = (mfxExtBuffer*)&s->scale_conf;
> > > av_log(ctx, AV_LOG_VERBOSE, "Scaling mode: %d\n", s->mode);
> > > #endif
> > > @@ -624,6 +630,17 @@ static const AVOption options[] = {
> > > { "low_power",
> > > "", 0, AV_OPT_TYPE_CONST, { .i64 = 1},
> > > 0, 0, FLAGS, "mode"},
> > > {
> > > "hq", "", 0, AV_OPT_TYPE_CONST,
> >
> > {
> > > .i64 = 2}, 0, 0, FLAGS, "mode"},
> > > #endif
> > > +#if QSV_HAVE_INTERPOLATION_METHOD
> > > + { "interpmethod", "set interpolation method", OFFSET(interpmethod),
> > > AV_OPT_TYPE_INT, { .i64 = MFX_INTERPOLATION_DEFAULT},
> > > MFX_INTERPOLATION_DEFAULT, MFX_INTERPOLATION_ADVANCED, FLAGS,
> >
> > "interpmethod"},
> > > + { "nearest", "nearest neighbor
> > > method", 0, AV_OPT_TYPE_CONST, { .i64 =
> > > MFX_INTERPOLATION_NEAREST_NEIGHBOR}, INT_MIN, INT_MAX, FLAGS,
> >
> > "interpmethod"},
> > > + { "bilinear", "bilinear
> > > method", 0, AV_OPT_TYPE_CONST, { .i64 =
> > > MFX_INTERPOLATION_BILINEAR}, INT_MIN, INT_MAX, FLAGS,
> >
> > "interpmethod"},
> > > + { "advanced", "advanced
> > > method", 0, AV_OPT_TYPE_CONST, { .i64 =
> > > MFX_INTERPOLATION_ADVANCED}, INT_MIN, INT_MAX, FLAGS,
> >
> > "interpmethod"},
> > > +#else
> > > + { "interpmethod", "(not supported)", OFFSET(interpmethod),
> > > AV_OPT_TYPE_INT, { .i64 = 0}, 0, INT_MAX, FLAGS, "interpmethod"},
> > > + {
> > > "nearest", "", 0,
> >
> > AV_OPT_TYPE
> > > _CONST, { .i64 = 1}, 0, 0, FLAGS, "interpmethod"},
> > > + {
> > > "bilinear", "", 0,
> >
> > AV_OPT_TYPE
> > > _CONST, { .i64 = 2}, 0, 0, FLAGS, "interpmethod"},
> > > + {
> > > "advanced", "", 0,
> >
> > AV_OPT_TYPE
> > > _CONST, { .i64 = 3}, 0, 0, FLAGS, "interpmethod"},
> > > +#endif
> > >
> >
> > Why is this option added for !QSV_HAVE_INTERPOLATION_METHOD?
> >
> >
>
> We are not getting error “interpmethod option not found” if API version is
> less than 1.33
Thanks for the explanation, your patch looks good me.
Regards
Haihao
>
> > > { NULL },
> > > };
> >
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