[FFmpeg-devel] [PATCH 2/5] avcodec/libsvtav1: make intra_refresh_type configurable

[lance.lmwang at gmail.com]

On Fri, Sep 17, 2021 at 01:38:46AM +0300, Jan Ekström wrote:
> Hi
> 
> On Thu, Sep 16, 2021 at 1:54 PM <lance.lmwang at gmail.com> wrote:
> >
> > From: Limin Wang <lance.lmwang at gmail.com>
> >
> > Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> > ---
> 
> I think something like:
> 
> avcodec/libsvtav1: make coded GOP type configurable
> 
> Might be a bit better as a commit message?

Yes, it's more better, I'll update it.


> >  libavcodec/libsvtav1.c | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/libavcodec/libsvtav1.c b/libavcodec/libsvtav1.c
> > index 82ae2b9..8c2c970 100644
> > --- a/libavcodec/libsvtav1.c
> > +++ b/libavcodec/libsvtav1.c
> > @@ -210,7 +210,8 @@ static int config_enc_params(EbSvtAv1EncConfiguration *param,
> >          param->min_qp_allowed       = avctx->qmin;
> >      }
> >
> > -    param->intra_refresh_type       = 2; /* Real keyframes only */
> > +    /* 2 = IDR, closed GOP, 1 = CRA, open GOP */
> > +    param->intra_refresh_type = avctx->flags & AV_CODEC_FLAG_CLOSED_GOP ? 2 : 1;
> >
> 
> Ugh... I see they have EbIntraRefreshType for an enum (NO_REFRESH |
> CRA_REFRESH | IDR_REFRESH), but I guess those are not available
> through the public API?

Yes, it's not public API.

> 
> >      if (svt_enc->la_depth >= 0)
> >          param->look_ahead_distance  = svt_enc->la_depth;
> > @@ -548,6 +549,7 @@ static const AVCodecDefault eb_enc_defaults[] = {
> >      { "g",         "-1"    },
> >      { "qmin",      "0"     },
> >      { "qmax",      "63"    },
> > +    { "flags",     "+cgop" },
> 
> Let's keep the alphabetic ordering since this module is not yet a mess
> in that sense :) Thus this would go after "b" .

OK, I'll change the order.

> 
> Otherwise LGTM.
> 
> Jan
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-- 
Thanks,
Limin Wang