#include /* this pipeline is: * { filesrc ! mad ! osssink } */ /* 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 *thread; GstElement *mad; gint x; gst_init(&argc,&argv); if (argc != 2) { g_print ("usage: %s \n", argv[0]); exit (-1); } /* create a new thread to hold the elements */ thread = gst_thread_new ("thread"); g_assert (thread != 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); /* did i mention that this is an mp3 player? */ mad = gst_element_factory_make ("mad", "mp3_decoder"); g_assert (mad != NULL); gst_bin_add_many (GST_BIN (thread), filesrc, mad, osssink, NULL); gst_element_link_many (filesrc, mad, osssink, NULL); for (x = 0 ; x < 10 ; x++){ g_print ("playing %d\n", x); gst_element_set_state (GST_ELEMENT (thread), GST_STATE_PLAYING); sleep (2); g_print ("pausing %d\n", x); gst_element_set_state (GST_ELEMENT (thread), GST_STATE_PAUSED); sleep (2); } exit (0); }