From 7afd42d9f26be1e95f15cbcfa0e09308a6591036 Mon Sep 17 00:00:00 2001
From: Stefano Sabatini <stefasab@gmail.com>
Date: Mon, 23 Jul 2012 14:57:15 +0200
Subject: [PATCH] lavfi/showwaves: do not set on outlink->out_buf the sent
video frame
The video frame reference is passed along the filterchain, and is not
possessed anymore by the filter. If out_buf is not set to NULL, it will
be freed by ff_end_frame() causing a crash.
---
libavfilter/avf_showwaves.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/libavfilter/avf_showwaves.c b/libavfilter/avf_showwaves.c
index 3939fe5046..96ed2c7ebc 100644
--- a/libavfilter/avf_showwaves.c
+++ b/libavfilter/avf_showwaves.c
@@ -206,7 +206,6 @@ static int filter_samples(AVFilterLink *inlink, AVFilterBufferRef *insamples)
av_rescale_q((p - (int16_t *)insamples->data[0]) / nb_channels,
(AVRational){ 1, inlink->sample_rate },
outlink->time_base);
- outlink->out_buf = outpicref;
linesize = outpicref->linesize[0];
memset(outpicref->data[0], 0, showwaves->h*linesize);
}