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avf_showwaves: fix null pointer dereference

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Found-by: durandal_1707
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e4eebc2da9)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-01-21 23:00:20 +01:00
parent 5ee483ae62
commit 78526c279f
1 changed files with 1 additions and 0 deletions
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libavfilter/avf_showwaves.c
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@@ -220,6 +220,7 @@ static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *insamples)
} }
if (showwaves->buf_idx == showwaves->w) if (showwaves->buf_idx == showwaves->w)
push_frame(outlink); push_frame(outlink);
outpicref = showwaves->outpicref;
} }
avfilter_unref_buffer(insamples); avfilter_unref_buffer(insamples);