gstreamer/examples/queue2/queue2.c

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#include <stdlib.h>
#include <gst/gst.h>
gboolean playing;
/* eos will be called when the src element has an end of stream */
void
eos (GstElement * element, gpointer data)
{
g_print ("have eos, quitting\n");
playing = FALSE;
}
int
main (int argc, char *argv[])
{
GstElement *filesrc, *audiosink, *queue;
GstElement *pipeline;
gst_init (&argc, &argv);
if (argc != 2) {
g_print ("usage: %s <filename>\n", argv[0]);
exit (-1);
}
/* 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);
queue = gst_element_factory_make ("queue", "queue");
/* and an audio sink */
audiosink = gst_element_factory_make ("alsasink", "play_audio");
g_assert (audiosink != NULL);
/* add objects to the main pipeline */
/*
gst_pipeline_add_src(GST_PIPELINE(pipeline), filesrc);
gst_pipeline_add_sink(GST_PIPELINE(pipeline), queue);
gst_bin_add(GST_BIN (pipeline), audiosink);
gst_pad_link(gst_element_get_pad(queue,"src"),
gst_element_get_pad(audiosink,"sink"));
if (!gst_pipeline_autoplug(GST_PIPELINE(pipeline))) {
g_print("cannot autoplug pipeline\n");
exit(-1);
}
*/
gst_bin_add (GST_BIN (pipeline), thread);
/* make it ready */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_READY);
/* start playing */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
playing = TRUE;
while (playing) {
gst_bin_iterate (GST_BIN (pipeline));
}
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
exit (0);
}