- gst_bin_add_many(GST_BIN(pipeline), source, demuxer, decoder, conv, sink, NULL);
+
+ GstCaps* caps = gst_caps_new_simple("audio/x-raw-int", "channels", G_TYPE_INT, 2, NULL);
+ g_object_set(G_OBJECT(filter), "caps", caps, NULL);
+
+ gst_bin_add_many(GST_BIN(pipeline), source, demuxer, decoder, conv, filter, sink, NULL);