gstreamer/examples/thread/thread.c
Wim Taymans 1351aba899 A thread example.
Original commit message from CVS:
A thread example.
An example of gstreamer-launch: an mp3 player
2000-09-09 16:39:03 +00:00

72 lines
1.8 KiB
C

#include <gst/gst.h>
/* eos will be called when the src element has an end of stream */
void eos(GstSrc *src, 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 *disksrc, *audiosink;
GstElement *pipeline;
GstElement *thread;
if (argc != 2) {
g_print("usage: %s <filename>\n", argv[0]);
exit(-1);
}
gst_init(&argc,&argv);
/* 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 */
disksrc = gst_elementfactory_make("disksrc", "disk_source");
g_assert(disksrc != NULL);
gtk_object_set(GTK_OBJECT(disksrc),"location", argv[1],NULL);
gtk_signal_connect(GTK_OBJECT(disksrc),"eos",
GTK_SIGNAL_FUNC(eos), thread);
/* and an audio sink */
audiosink = gst_elementfactory_make("audiosink", "play_audio");
g_assert(audiosink != NULL);
/* add objects to the main pipeline */
gst_bin_add(GST_BIN(pipeline), disksrc);
gst_bin_add(GST_BIN(pipeline), audiosink);
if (!gst_pipeline_autoplug(GST_PIPELINE(pipeline))) {
g_print("unable to handle stream\n");
exit(-1);
}
gst_bin_remove(GST_BIN(pipeline), disksrc);
gst_bin_add(GST_BIN(thread), disksrc);
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_pipeline_destroy(thread);
exit(0);
}