[FFmpeg-cvslog] avfilter/af_acrossover: add missing inverter as last step

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Thu Nov 26 13:13:42 2020 +0100| [f7d7ce4717a1331b17d3b09d4ad92feeb1f4b5a3] | committer: Paul B Mahol

avfilter/af_acrossover: add missing inverter as last step

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f7d7ce4717a1331b17d3b09d4ad92feeb1f4b5a3
---

 libavfilter/af_acrossover.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libavfilter/af_acrossover.c b/libavfilter/af_acrossover.c
index f4b45d4b60..11785e017d 100644
--- a/libavfilter/af_acrossover.c
+++ b/libavfilter/af_acrossover.c
@@ -315,6 +315,15 @@ static int filter_channels(AVFilterContext *ctx, void *arg, int jobnr, int nb_jo
                 biquad_process(lp, dst, lsrc, nb_samples);
             }
         }
+
+        for (int band = 0; band < ctx->nb_outputs && s->filter_count & 1; band++) {
+            if (band & 1) {
+                double *dst = (double *)frames[band]->extended_data[ch];
+
+                for (int n = 0; n < nb_samples; n++)
+                    dst[n] *= -1.;
+            }
+        }
     }
 
     return 0;