+ if (inlink->w < s->left + s->right ||
+ inlink->w <= s->left ||
+ inlink->w <= s->right ||
+ inlink->h < s->top + s->bottom ||
+ inlink->h <= s->top ||
+ inlink->h <= s->bottom ||
+ inlink->w < s->left * 2 ||
+ inlink->w < s->right * 2 ||
+ inlink->h < s->top * 2 ||
+ inlink->h < s->bottom * 2) {
+ av_log(ctx, AV_LOG_ERROR, "Borders are bigger than input frame size.\n");
+ return AVERROR(EINVAL);
+ }
+