avf_showwaves: fix null pointer dereference

Found-by: durandal_1707 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-21 23:00:20 +01:00 · 2013-01-21 23:00:20 +01:00 · e4eebc2da9
commit e4eebc2da9
parent 03a82d588b
1 changed files with 1 additions and 0 deletions
--- a/libavfilter/avf_showwaves.c
+++ b/libavfilter/avf_showwaves.c
@ -220,6 +220,7 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *insamples)
        }
        if (showwaves->buf_idx == showwaves->w)
            push_frame(outlink);
+        outpicref = showwaves->outpicref;
    }

    avfilter_unref_buffer(insamples);