diff options
Diffstat (limited to 'libavfilter/vf_signalstats.c')
| -rw-r--r-- | libavfilter/vf_signalstats.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavfilter/vf_signalstats.c b/libavfilter/vf_signalstats.c index 47545aa080..8c6a2d6bbd 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) |