gstreamer/examples/thread/thread.c

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#include <stdlib.h>
#include <gst/gst.h>
/* eos will be called when the src element has an end of stream */
void
eos (GstElement * element, gpointer data)
{
GstThread *thread = GST_THREAD (data);
g_print ("have eos, quitting\n");
/* stop the bin */
gst_element_set_state (GST_ELEMENT (thread), GST_STATE_NULL);
gst_main_quit ();
}
int
main (int argc, char *argv[])
{
GstElement *filesrc, *osssink;
GstElement *pipeline;
GstElement *thread;
gst_init (&argc, &argv);
if (argc != 2) {
g_print ("usage: %s <filename>\n", argv[0]);
exit (-1);
}
/* create a new thread to hold the elements */
thread = gst_thread_new ("thread");
g_assert (thread != NULL);
/* create a new bin to hold the elements */
pipeline = gst_pipeline_new ("pipeline");
g_assert (pipeline != NULL);
/* create a disk reader */
filesrc = gst_element_factory_make ("filesrc", "disk_source");
g_assert (filesrc != NULL);
g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
g_signal_connect (G_OBJECT (filesrc), "eos", G_CALLBACK (eos), thread);
/* and an audio sink */
osssink = gst_element_factory_make ("osssink", "play_audio");
g_assert (osssink != NULL);
/* add objects to the main pipeline */
/*
gst_pipeline_add_src(GST_PIPELINE(pipeline), filesrc);
gst_pipeline_add_sink(GST_PIPELINE(pipeline), osssink);
if (!gst_pipeline_autoplug(GST_PIPELINE(pipeline))) {
g_print("unable to handle stream\n");
exit(-1);
}
*/
/*gst_bin_remove(GST_BIN(pipeline), filesrc); */
/*gst_bin_add(GST_BIN(thread), filesrc); */
gst_bin_add (GST_BIN (thread), GST_ELEMENT (pipeline));
/* make it ready */
gst_element_set_state (GST_ELEMENT (thread), GST_STATE_READY);
/* start playing */
gst_element_set_state (GST_ELEMENT (thread), GST_STATE_PLAYING);
gst_main ();
gst_object_unref (GST_OBJECT (thread));
exit (0);
}