throw DecodeError (N_("could not set up filter graph."));
}
- if (avfilter_graph_config (_graph, 0) < 0) {
- throw DecodeError (N_("could not configure filter graph."));
+ int e = avfilter_graph_config (_graph, 0);
+ if (e < 0) {
+ throw DecodeError (String::compose (N_("could not configure filter graph (%1)"), e));
}
}