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

This was the original intend.
10 years ago · b424e67abf
parent 36091742d1
commit b424e67abf
1 changed files with 3 additions and 1 deletions
--- 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)