[FFmpeg-cvslog] avfilter/signalstats: fix different buffers for out frame if burn is enabled

[Clément Bœsch]

ffmpeg | branch: master | Clément Bœsch <u at pkh.me> | Sun Nov 16 21:12:50 2014 +0100| [b424e67abf0dc9b5f8ca4d281baceee7d7b932f2] | committer: Clément Bœsch

avfilter/signalstats: fix different buffers for out frame if burn is enabled

This was the original intend.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b424e67abf0dc9b5f8ca4d281baceee7d7b932f2
---

 libavfilter/vf_signalstats.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavfilter/vf_signalstats.c b/libavfilter/vf_signalstats.c
index 47545aa..8c6a2d6 100644
--- a/libavfilter/vf_signalstats.c
+++ b/libavfilter/vf_signalstats.c
@@ -294,8 +294,10 @@ static int filter_frame(AVFilterLink *link, AVFrame *in)
 
     prev = s->frame_prev;
 
-    if (s->outfilter != FILTER_NONE)
+    if (s->outfilter != FILTER_NONE) {
         out = av_frame_clone(in);
+        av_frame_make_writable(out);
+    }
 
     for (fil = 0; fil < FILT_NUMB; fil ++)
         if ((s->filters & 1<<fil) && filters_def[fil].init)