[FFmpeg-devel] [PATCH 10/10] lavfi/vf_scale: pass the thread count to the scaler

[Michael Niedermayer]

On Sun, Aug 08, 2021 at 07:29:41PM +0200, Anton Khirnov wrote:
> ---
>  libavfilter/vf_scale.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/libavfilter/vf_scale.c b/libavfilter/vf_scale.c
> index b62fb37d4b..14e202bf77 100644
> --- a/libavfilter/vf_scale.c
> +++ b/libavfilter/vf_scale.c
> @@ -542,6 +542,7 @@ static int config_props(AVFilterLink *outlink)
>              av_opt_set_int(*s, "sws_flags", scale->flags, 0);
>              av_opt_set_int(*s, "param0", scale->param[0], 0);
>              av_opt_set_int(*s, "param1", scale->param[1], 0);
> +            av_opt_set_int(*s, "threads", ff_filter_get_nb_threads(ctx), 0);
>              if (scale->in_range != AVCOL_RANGE_UNSPECIFIED)
>                  av_opt_set_int(*s, "src_range",
>                                 scale->in_range == AVCOL_RANGE_JPEG, 0);
> -- 
> 2.30.2

breaks:
./ffmpeg -i ~/tickets/1012/IV50_random_points.avi  -threads 5 -y file1012.avi

it contains horizontal bright green lines


[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Old school: Use the lowest level language in which you can solve the problem
            conveniently.
New school: Use the highest level language in which the latest supercomputer
            can solve the problem without the user falling asleep waiting.
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