#include /* * this example uses tee, fakesrc, fakesink and lame * * it requests a new pad from tee and attaches lame and fakesink * after iterating * it requests another one * this is to test if the encoder is initialized ok when adding to a * pipe that has played */ static void error_callback (GObject *object, GstObject *orig, gchar *error) { g_print ("ERROR: %s: %s\n", GST_OBJECT_NAME (orig), error); } int main (int argc, char *argv[]) { GstElement *pipeline; GstElement *src, *tee, *encoder1, *encoder2, *sink1, *sink2; GstPad *teepad1, *teepad2; GstCaps *caps; gst_init (&argc, &argv); /* create elements */ if (!(pipeline = gst_elementfactory_make ("pipeline", "pipeline"))) return 1; if (!(src = gst_elementfactory_make ("fakesrc", "source"))) return 1; if (!(tee = gst_elementfactory_make ("tee", "tee"))) return 1; if (!(encoder1 = gst_elementfactory_make ("lame", "lame1"))) return 1; if (!(encoder2 = gst_elementfactory_make ("lame", "lame2"))) return 1; if (!(sink1 = gst_elementfactory_make ("fakesink", "sink1"))) return 1; if (!(sink2 = gst_elementfactory_make ("fakesink", "sink2"))) return 1; pipeline = gst_pipeline_new ("pipeline"); g_signal_connect (pipeline, "error", G_CALLBACK (error_callback), NULL); /* set up input */ g_print ("setting up input\n"); gst_bin_add (GST_BIN (pipeline), src); gst_bin_add (GST_BIN (pipeline), tee); gst_pad_connect (gst_element_get_pad (src, "src"), gst_element_get_pad (tee, "sink")); /* set up fakesrc */ g_object_set (G_OBJECT (src), "filltype", 3, NULL); g_object_set (G_OBJECT (src), "sizetype", 3, NULL); /* set caps on fakesrc */ caps = GST_CAPS_NEW ( "input audio", "audio/raw", "format", GST_PROPS_STRING ("int"), "rate", GST_PROPS_INT (44100), "width", GST_PROPS_INT (16), "depth", GST_PROPS_INT (16), "law", GST_PROPS_INT (0), "signed", GST_PROPS_BOOLEAN (TRUE), "channels", GST_PROPS_INT (1) ); g_object_set (G_OBJECT (src), "sizetype", 3, "filltype", 3, NULL); gst_element_set_state (pipeline, GST_STATE_READY); g_print ("Setting caps on fakesrc's src pad\n"); if (! (gst_pad_try_set_caps (gst_element_get_pad (src, "src"), caps))) g_print ("Could not set caps !\n"); /* request first pad from tee and connect */ g_print ("attaching first output pipe to tee\n"); teepad1 = gst_element_request_pad_by_name (tee, "src%d"); gst_bin_add (GST_BIN (pipeline), encoder1); gst_bin_add (GST_BIN (pipeline), sink1); gst_pad_connect (teepad1, gst_element_get_pad (encoder1, "sink")); gst_pad_connect (gst_element_get_pad (encoder1, "src"), gst_element_get_pad (sink1, "sink")); gst_element_set_state (pipeline, GST_STATE_PLAYING); /* iterate */ g_print ("iterate\n"); gst_bin_iterate (GST_BIN (pipeline)); gst_element_set_state (pipeline, GST_STATE_PAUSED); /* request second pad and connect */ g_print ("attaching second output pipe to tee\n"); teepad2 = gst_element_request_pad_by_name (tee, "src%d"); gst_bin_add (GST_BIN (pipeline), encoder2); gst_bin_add (GST_BIN (pipeline), sink2); gst_pad_connect (teepad2, gst_element_get_pad (encoder2, "sink")); gst_pad_connect (gst_element_get_pad (encoder2, "src"), gst_element_get_pad (sink2, "sink")); gst_element_set_state (pipeline, GST_STATE_PLAYING); g_print ("iterate\n"); gst_bin_iterate (GST_BIN (pipeline)); g_print ("done\n"); return 0; }