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

This was the original intend.

avfilter/signalstats: fix different buffers for out frame if burn is enabled
This was the original intend.
b424e67a · Clément Bœsch · Clément Bœsch · 36091742 · b424e67a
Commit b424e67a authored Nov 16, 2014 by Clément Bœsch Committed by Clément Bœsch Nov 26, 2014
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vf_signalstats.c libavfilter/vf_signalstats.c +3 -1

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--- 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)