avfilter/geq: unbreak alpha processing

d607af50fd broke alpha processing by always overwriting any supplied alpha expression.
3 years ago · b980d9e8ec
parent 93d6d697fa
commit b980d9e8ec
1 changed files with 1 additions and 1 deletions
--- a/libavfilter/vf_geq.c
+++ b/libavfilter/vf_geq.c
@ -275,7 +275,7 @@ static av_cold int geq_init(AVFilterContext *ctx)

    if (!geq->expr_str[A] && geq->bps != 32) {
        geq->expr_str[A] = av_asprintf("%d", (1<<geq->bps) - 1);
-    } else {
+    } else if (!geq->expr_str[A]) {
        geq->expr_str[A] = av_asprintf("%f", 1.f);
    }
    if (!geq->expr_str[G])