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);
}