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avfilter: Properly check for failed format query 

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
This commit is contained in:
Derek Buitenhuis 2014-10-02 11:55:52 +01:00
parent 1dbc3e8ac8
commit 23c9ebffb5
1 changed files with 3 additions and 1 deletions
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4
libavfilter/avfiltergraph.c
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@ -559,7 +559,9 @@ static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
if ((ret = avfilter_insert_filter(link, convert, 0, 0)) < 0)
return ret;
filter_query_formats(convert);
if ((ret = filter_query_formats(convert)) < 0)
return ret;
inlink = convert->inputs[0];
outlink = convert->outputs[0];
av_assert0( inlink-> in_formats->refcount > 0);