Re: [FFmpeg-devel] [PATCH 4/4] lavc/vvc/refs: Use dpb_max_num_reorder_pics to control output

["mypopy@gmail.com" <mypopy@gmail.com>]

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On Sat, Apr 20, 2024 at 11:55 AM Nuo Mi <nuomi2021@gmail.com> wrote:
>
> Hi Barry and Eliny,
> LGTM.
> Thank you for the patch.
> Is it possible to provide the clip so we can add it to our CI?
>
>  ci like https://github.com/ffvvc/FFmpeg/actions
>
>

> On Fri, Apr 19, 2024 at 9:48 PM Jun Zhao <mypopy@gmail.com> wrote:
>
> > From: Jun Zhao <mypopydev@gmail.com>
> >
> > Use dpb_max_num_reorder_pics to control output instead of
> > dpb_max_dec_pic_buffering, when dpb_max_dec_pic_buffering
> > is much larger than dpb_max_num_reorder_pics, it may cause
> > dpb overflow error.
> >
> > Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
> > Signed-off-by: elinyhuang <elinyhuang@tencent.com>
> > ---
> >  libavcodec/vvc/refs.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/libavcodec/vvc/refs.c b/libavcodec/vvc/refs.c
> > index a5ee7338d6..6694bc4c51 100644
> > --- a/libavcodec/vvc/refs.c
> > +++ b/libavcodec/vvc/refs.c
> > @@ -226,7 +226,7 @@ int ff_vvc_output_frame(VVCContext *s, VVCFrameContext
> > *fc, AVFrame *out, const
> >
> >          /* wait for more frames before output */
> >          if (!flush && s->seq_output == s->seq_decode && sps &&
> > -            nb_output <=
> > sps->r->sps_dpb_params.dpb_max_dec_pic_buffering_minus1[sps->r->sps_max_sublayers_minus1]
> > + 1)
> > +            nb_output <=
> > sps->r->sps_dpb_params.dpb_max_num_reorder_pics[sps->r->sps_max_sublayers_minus1])
> >              return 0;
> >
> >          if (nb_output) {
> > --
> > 2.25.1
> >
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