[FFmpeg-devel] [PATCH] avfilter/vf_framerate: fix infinite loop with 1-frame input

[Marton Balint]

On Sun, 20 Dec 2020, Marton Balint wrote:

> Fixes infinite loop in:
> ffmpeg -f lavfi -i testsrc=d=0.04 -vf framerate=50 -f null none

Ping, will apply soon.

Regards,
Marton

>
> Signed-off-by: Marton Balint <cus at passwd.hu>
> ---
> libavfilter/vf_framerate.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/libavfilter/vf_framerate.c b/libavfilter/vf_framerate.c
> index 6c8d01c94b..f5085705a4 100644
> --- a/libavfilter/vf_framerate.c
> +++ b/libavfilter/vf_framerate.c
> @@ -170,7 +170,9 @@ static int process_work_frame(AVFilterContext *ctx)
>         return 0;
>
>     if (!s->f0) {
> -        s->work = av_frame_clone(s->f1);
> +        av_assert1(s->flush);
> +        s->work = s->f1;
> +        s->f1 = NULL;
>     } else {
>         if (work_pts >= s->pts1 + s->delta && s->flush)
>             return 0;
> -- 
> 2.26.2
>
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