avfilter/vf_zoompan: fix specific corner case when no frame was ever requested from input

Reported-by: Nicolas George
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2017-09-07 16:49:46 +02:00
parent afc9c683ed
commit e1524de454

View File

@ -133,6 +133,7 @@ static int config_output(AVFilterLink *outlink)
outlink->time_base = av_inv_q(s->framerate);
outlink->frame_rate = s->framerate;
s->desc = av_pix_fmt_desc_get(outlink->format);
s->finished = 1;
ret = av_expr_parse(&s->zoom_expr, s->zoom_expr_str, var_names, NULL, NULL, NULL, NULL, 0, ctx);
if (ret < 0)