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-rw-r--r--libavfilter/vf_yadif.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavfilter/vf_yadif.c b/libavfilter/vf_yadif.c
index 12b37836f8..790dda5a0b 100644
--- a/libavfilter/vf_yadif.c
+++ b/libavfilter/vf_yadif.c
@@ -316,11 +316,15 @@ static int poll_frame(AVFilterLink *link)
return 1;
val = avfilter_poll_frame(link->src->inputs[0]);
+ if (val <= 0)
+ return val;
if (val==1 && !yadif->next) { //FIXME change API to not requre this red tape
if ((ret = avfilter_request_frame(link->src->inputs[0])) < 0)
return ret;
val = avfilter_poll_frame(link->src->inputs[0]);
+ if (val <= 0)
+ return val;
}
assert(yadif->next || !val);