mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 00:06:36 +00:00
78 lines
2.7 KiB
C
78 lines
2.7 KiB
C
#include <gst/gst.h>
|
|
|
|
gboolean playing = TRUE;
|
|
|
|
static void
|
|
handoff_signal (GstElement *element, GstBuffer *buf)
|
|
{
|
|
g_print ("handoff \"%s\" %llu\n", gst_element_get_name (element), GST_BUFFER_TIMESTAMP (buf));
|
|
}
|
|
|
|
static void
|
|
eos_signal (GstElement *element)
|
|
{
|
|
g_print ("eos received from \"%s\"\n", gst_element_get_name (element));
|
|
|
|
playing = FALSE;
|
|
}
|
|
|
|
int
|
|
main(int argc,char *argv[])
|
|
{
|
|
GstBin *pipeline;
|
|
GstElement *src, *tee, *identity1, *identity2, *aggregator, *sink;
|
|
|
|
gst_init (&argc, &argv);
|
|
|
|
pipeline = GST_BIN (gst_pipeline_new ("pipeline"));
|
|
g_return_val_if_fail (pipeline != NULL, 1);
|
|
|
|
src = gst_elementfactory_make ("fakesrc", "src");
|
|
g_object_set (G_OBJECT (src), "num_buffers", 4, NULL);
|
|
g_return_val_if_fail (src != NULL, 2);
|
|
tee = gst_elementfactory_make ("tee", "tee");
|
|
g_return_val_if_fail (tee != NULL, 3);
|
|
identity1 = gst_elementfactory_make ("identity", "identity0");
|
|
g_return_val_if_fail (identity1 != NULL, 3);
|
|
identity2 = gst_elementfactory_make ("identity", "identity1");
|
|
g_object_set (G_OBJECT (identity2), "duplicate", 2, NULL);
|
|
g_object_set (G_OBJECT (identity2), "loop_based", TRUE, NULL);
|
|
g_return_val_if_fail (identity2 != NULL, 3);
|
|
aggregator = gst_elementfactory_make ("aggregator", "aggregator");
|
|
g_object_set (G_OBJECT (aggregator), "sched", 3, NULL);
|
|
g_return_val_if_fail (aggregator != NULL, 3);
|
|
sink = gst_elementfactory_make ("fakesink", "sink");
|
|
g_return_val_if_fail (sink != NULL, 4);
|
|
|
|
gst_bin_add (pipeline, GST_ELEMENT (src));
|
|
gst_bin_add (pipeline, GST_ELEMENT (tee));
|
|
gst_bin_add (pipeline, GST_ELEMENT (identity1));
|
|
gst_bin_add (pipeline, GST_ELEMENT (identity2));
|
|
gst_bin_add (pipeline, GST_ELEMENT (aggregator));
|
|
gst_bin_add (pipeline, GST_ELEMENT (sink));
|
|
|
|
gst_element_connect (src, "src", tee, "sink");
|
|
gst_pad_connect (gst_element_request_pad_by_name (tee, "src%d"),
|
|
gst_element_get_pad (identity1, "sink"));
|
|
gst_pad_connect (gst_element_request_pad_by_name (tee, "src%d"),
|
|
gst_element_get_pad (identity2, "sink"));
|
|
gst_pad_connect (gst_element_get_pad (identity1, "src"),
|
|
gst_element_request_pad_by_name (aggregator, "sink%d"));
|
|
gst_pad_connect (gst_element_get_pad (identity2, "src"),
|
|
gst_element_request_pad_by_name (aggregator, "sink%d"));
|
|
gst_element_connect (aggregator, "src", sink, "sink");
|
|
|
|
g_signal_connect (G_OBJECT (src), "eos",
|
|
G_CALLBACK (eos_signal), NULL);
|
|
g_signal_connect (G_OBJECT (sink), "handoff",
|
|
G_CALLBACK (handoff_signal), NULL);
|
|
|
|
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
|
|
|
|
while (playing)
|
|
gst_bin_iterate (pipeline);
|
|
|
|
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
|
|
|
|
exit (0);
|
|
}
|