avfilter/af_afreqshift: do not forget to update coeffs at runtime

3 years ago · 8c1b65feb6
parent 1da2dd5c77
commit 8c1b65feb6
1 changed files with 4 additions and 0 deletions
--- a/libavfilter/af_afreqshift.c
+++ b/libavfilter/af_afreqshift.c
@ -321,6 +321,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
    AVFrame *out;
    ThreadData td;

+    if (s->old_nb_coeffs != s->nb_coeffs)
+        compute_coefs(s->cd, s->cf, s->nb_coeffs * 2, 2. * 20. / inlink->sample_rate);
+    s->old_nb_coeffs = s->nb_coeffs;
+
    if (av_frame_is_writable(in)) {
        out = in;
    } else {