[FFmpeg-cvslog] avfilter/af_astats: Avoid Zero division in print part.

[Martin Vignali]

ffmpeg | branch: master | Martin Vignali <martin.vignali at gmail.com> | Sun Mar  8 08:41:27 2015 +0000| [65ba90eac6fde92b078f8c012f591382b44ac88b] | committer: Paul B Mahol

avfilter/af_astats: Avoid Zero division in print part.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=65ba90eac6fde92b078f8c012f591382b44ac88b
---

 libavfilter/af_astats.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavfilter/af_astats.c b/libavfilter/af_astats.c
index 60ccd73..3ac2749 100644
--- a/libavfilter/af_astats.c
+++ b/libavfilter/af_astats.c
@@ -222,6 +222,9 @@ static void print_stats(AVFilterContext *ctx)
         av_log(ctx, AV_LOG_INFO, "Peak count: %"PRId64"\n", p->min_count + p->max_count);
     }
 
+    if (!nb_samples || !s->nb_channels)
+        return;
+
     av_log(ctx, AV_LOG_INFO, "Overall\n");
     av_log(ctx, AV_LOG_INFO, "DC offset: %f\n", max_sigma_x / (nb_samples / s->nb_channels));
     av_log(ctx, AV_LOG_INFO, "Min level: %f\n", min);