diff options
| -rw-r--r-- | libavfilter/avfiltergraph.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c index 980cdf2877..86be2c4a8c 100644 --- a/libavfilter/avfiltergraph.c +++ b/libavfilter/avfiltergraph.c @@ -358,7 +358,11 @@ static int query_formats(AVFilterGraph *graph, AVClass *log_ctx) snprintf(inst_name, sizeof(inst_name), "auto-inserted scaler %d", scaler_count++); - snprintf(scale_args, sizeof(scale_args), "0:0:%s", graph->scale_sws_opts); + if (graph->scale_sws_opts) + snprintf(scale_args, sizeof(scale_args), "0:0:%s", graph->scale_sws_opts); + else + snprintf(scale_args, sizeof(scale_args), "0:0"); + if ((ret = avfilter_graph_create_filter(&convert, filter, inst_name, scale_args, NULL, graph)) < 0) |