---
libavfilter/af_join.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libavfilter/af_join.c b/libavfilter/af_join.c
index 89bc47f..e86c556 100644
--- a/libavfilter/af_join.c
+++ b/libavfilter/af_join.c
@@ -419,7 +419,7 @@ static int join_request_frame(AVFilterLink *outlink)
JoinBufferPriv *priv;
int linesize = INT_MAX;
int perms = ~0;
- int nb_samples;
+ int nb_samples = 0;
int i, j, ret;
/* get a frame on each input */
@@ -448,6 +448,7 @@ static int join_request_frame(AVFilterLink *outlink)
perms &= cur_buf->perms;
}
+ av_assert0(nb_samples > 0);
buf = avfilter_get_audio_buffer_ref_from_arrays(s->data, linesize, perms,
nb_samples,
outlink->format,
outlink->channel_layout);
--
1.7.10
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