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lavfi/avfiltergraph: avoid to print "(null)" in the scale args

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Fix parsing.
This commit is contained in:
Stefano Sabatini 2012-10-17 10:14:15 +02:00
parent 2969abd908
commit 8f37a1e8dc
1 changed files with 5 additions and 1 deletions
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6
libavfilter/avfiltergraph.c
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@ -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)