#include <gst/gst.h> extern gboolean _gst_plugin_spew; void eof(GstElement *src) { g_print("have eof, quitting\n"); exit(0); } void mp3parse_info_chain(GstPad *pad,GstBuffer *buf) { g_print("sink : got buffer of size %d\n",GST_BUFFER_SIZE(buf)); gst_buffer_unref(buf); } int main(int argc,char *argv[]) { GstPipeline *pipeline; GstElementFactory *srcfactory, *parsefactory; GstElement *src, *parse; GstPad *infopad; g_print("have %d args\n",argc); _gst_plugin_spew = TRUE; gst_init(&argc,&argv); // gst_plugin_load("mp3parse"); gst_plugin_load_all(); pipeline = GST_PIPELINE(gst_pipeline_new("pipeline")); g_return_val_if_fail(pipeline != NULL, -1); srcfactory = gst_elementfactory_find("disksrc"); g_return_val_if_fail(srcfactory != NULL, -1); parsefactory = gst_elementfactory_find("mp3parse"); g_return_val_if_fail(parsefactory != NULL, -1); src = gst_elementfactory_create(srcfactory,"src"); g_return_val_if_fail(src != NULL, -1); g_object_set(G_OBJECT(src),"location",argv[1]); g_print("should be using file '%s'\n",argv[1]); parse = gst_elementfactory_create(parsefactory,"parse"); g_return_val_if_fail(parse != NULL, -1); infopad = gst_pad_new("sink",GST_PAD_SINK); gst_pad_set_chain_function(infopad,mp3parse_info_chain); gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(src)); gst_bin_add(GST_BIN(pipeline),GST_ELEMENT(parse)); g_signal_connect(G_OBJECT(src),"eos", G_CALLBACK(eof),NULL); gst_pad_connect(gst_element_get_pad(src,"src"), gst_element_get_pad(parse,"sink")); gst_pad_connect(gst_element_get_pad(parse,"src"), infopad); g_print("setting to RUNNING state\n"); gst_element_set_state(GST_ELEMENT(pipeline),GST_STATE_READY); g_print("about to enter loop\n"); while (1) gst_bin_iterate(GST_BIN(pipeline)); }