---
avconv_filter.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/avconv_filter.c b/avconv_filter.c
index 892db00..262b4ee 100644
--- a/avconv_filter.c
+++ b/avconv_filter.c
@@ -611,6 +611,7 @@ int configure_filtergraph(FilterGraph *fg)
if (simple && (!inputs || inputs->next || !outputs || outputs->next)) {
av_log(NULL, AV_LOG_ERROR, "Simple filtergraph '%s' does not have "
"exactly one input and output.\n", graph_desc);
+ av_log(NULL, AV_LOG_WARNING, "Maybe use -filter_complex instead of
-vf?\n", graph_desc);
return AVERROR(EINVAL);
}
--
1.7.9.5
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