From 27fe8930e0b9e7881e61eb9ed0b8b526f718abfe Mon Sep 17 00:00:00 2001 From: Steven Liu Date: Thu, 1 Feb 2018 10:55:19 +0800 Subject: avfilter: add comments for duplicate line comment about the looks like a duplicate line. but that is used to reason x is expressed from y Suggested-by: Paul B Mahol Suggested-by: Michael Niedermayer Signed-off-by: Steven Liu --- libavfilter/vf_overlay.c | 1 + 1 file changed, 1 insertion(+) (limited to 'libavfilter/vf_overlay.c') diff --git a/libavfilter/vf_overlay.c b/libavfilter/vf_overlay.c index aa5835ae3a..c6a6ac82f3 100644 --- a/libavfilter/vf_overlay.c +++ b/libavfilter/vf_overlay.c @@ -149,6 +149,7 @@ static void eval_expr(AVFilterContext *ctx) s->var_values[VAR_X] = av_expr_eval(s->x_pexpr, s->var_values, NULL); s->var_values[VAR_Y] = av_expr_eval(s->y_pexpr, s->var_values, NULL); + /* It is necessary if x is expressed from y */ s->var_values[VAR_X] = av_expr_eval(s->x_pexpr, s->var_values, NULL); s->x = normalize_xy(s->var_values[VAR_X], s->hsub); s->y = normalize_xy(s->var_values[VAR_Y], s->vsub); -- cgit v1.2.3