gstreamer/tests/old/examples/helloworld/helloworld.c
Wim Taymans 284ecaecca helloworld example. and docs
Original commit message from CVS:
helloworld example. and docs
2000-08-18 20:38:54 +00:00

78 lines
2 KiB
C

#include <gst/gst.h>
gboolean playing;
/* eos will be called when the src element has an end os stream */
void eos(GstSrc *src)
{
g_print("have eos, quitting\n");
playing = FALSE;
}
int main(int argc,char *argv[])
{
GstElement *bin, *disksrc, *parse, *decoder, *audiosink;
if (argc != 2) {
g_print("usage: %s <filename>\n", argv[0]);
exit(-1);
}
gst_init(&argc,&argv);
gst_plugin_load_all();
g_print("\n");
/* create a new bin to hold the elements */
bin = gst_bin_new("bin");
/* create a disk reader */
disksrc = gst_elementfactory_make("disksrc", "disk_source");
gtk_object_set(GTK_OBJECT(disksrc),"location", argv[1],NULL);
gtk_signal_connect(GTK_OBJECT(disksrc),"eos",
GTK_SIGNAL_FUNC(eos),NULL);
/* now it's time to get the parser */
parse = gst_elementfactory_make("mp3parse","parse");
decoder = gst_elementfactory_make("mpg123","decoder");
/* and an audio sink */
audiosink = gst_elementfactory_make("audiosink", "play_audio");
/* add objects to the main pipeline */
gst_bin_add(GST_BIN(bin), disksrc);
gst_bin_add(GST_BIN(bin), decoder);
gst_bin_add(GST_BIN(bin), audiosink);
/* connect src to sink */
gst_pad_connect(gst_element_get_pad(disksrc,"src"),
gst_element_get_pad(parse,"sink"));
gst_pad_connect(gst_element_get_pad(parse,"src"),
gst_element_get_pad(decoder,"sink"));
gst_pad_connect(gst_element_get_pad(decoder,"src"),
gst_element_get_pad(audiosink,"sink"));
/* find out how to handle this bin */
gst_bin_create_plan(GST_BIN(bin));
/* make it ready */
gst_element_set_state(bin, GST_STATE_READY);
/* start playing */
gst_element_set_state(bin, GST_STATE_PLAYING);
playing = TRUE;
while (playing) {
gst_bin_iterate(GST_BIN(bin));
}
/* stop the bin */
gst_element_set_state(bin, GST_STATE_NULL);
gst_object_destroy(GST_OBJECT(audiosink));
gst_object_destroy(GST_OBJECT(decoder));
gst_object_destroy(GST_OBJECT(disksrc));
gst_object_destroy(GST_OBJECT(bin));
exit(0);
}