gstreamer/examples/helloworld/helloworld.c

53 lines
1.3 KiB
C
Raw Normal View History

#include <stdlib.h>
#include <gst/gst.h>
int main(int argc,char *argv[])
{
GstElement *bin, *filesrc, *decoder, *osssink;
gst_init(&argc,&argv);
if (argc != 2) {
g_print("usage: %s <mp3 file>\n", argv[0]);
exit(-1);
}
/* create a new bin to hold the elements */
bin = gst_pipeline_new("pipeline");
/* create a disk reader */
filesrc = gst_elementfactory_make("filesrc", "disk_source");
g_object_set(G_OBJECT(filesrc),"location", argv[1],NULL);
/* now it's time to get the decoder */
decoder = gst_elementfactory_make("mad","parse");
if (!decoder) {
g_print ("could not find plugin \"mad\"");
return -1;
}
/* and an audio sink */
osssink = gst_elementfactory_make("osssink", "play_audio");
/* add objects to the main pipeline */
gst_bin_add(GST_BIN(bin), filesrc);
gst_bin_add(GST_BIN(bin), decoder);
gst_bin_add(GST_BIN(bin), osssink);
/* connect src to sink */
gst_pad_connect(gst_element_get_pad(filesrc,"src"),
gst_element_get_pad(decoder,"sink"));
gst_pad_connect(gst_element_get_pad(decoder,"src"),
gst_element_get_pad(osssink,"sink"));
/* start playing */
gst_element_set_state(bin, GST_STATE_PLAYING);
while (gst_bin_iterate(GST_BIN(bin)));
/* stop the bin */
gst_element_set_state(bin, GST_STATE_NULL);
exit(0);
}