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

[Nuo Mi]

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 at gmail.com> wrote:

> From: Jun Zhao <mypopydev at 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 at tencent.com>
> Signed-off-by: elinyhuang <elinyhuang at 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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