X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavfilter%2Faf_amix.c;h=3e5e7ee118d9dee987c4e71145508690d78a0bb4;hb=28dcf1870660ea353ccc8e7a907712e681174228;hp=e64e28910820345a1c842684037b9c9e8525e0b5;hpb=3fd5f09845e54bcd61a817b57c054d55f6b6fe5d;p=ffmpeg

diff --git a/libavfilter/af_amix.c b/libavfilter/af_amix.c
index e64e2891082..3e5e7ee118d 100644
--- a/libavfilter/af_amix.c
+++ b/libavfilter/af_amix.c
@@ -312,6 +312,9 @@ static int output_frame(AVFilterLink *outlink)
 
     calculate_scales(s, nb_samples);
 
+    if (nb_samples == 0)
+        return 0;
+
     out_buf = ff_get_audio_buffer(outlink, nb_samples);
     if (!out_buf)
         return AVERROR(ENOMEM);