// player2.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include /* * Global objects are usually a bad thing. For the purpose of this * example, we will use them, however. */ GstElement *pipeline, *source, *parser, *decoder, *conv, *sink; static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer data) { GMainLoop *loop = (GMainLoop *) data; switch (GST_MESSAGE_TYPE (msg)) { case GST_MESSAGE_EOS: g_print ("End-of-stream\n"); g_main_loop_quit (loop); break; case GST_MESSAGE_ERROR: { gchar *debug; GError *err; gst_message_parse_error (msg, &err, &debug); g_free (debug); g_print ("Error: %s\n", err->message); g_error_free (err); g_main_loop_quit (loop); break; } default: break; } return TRUE; } /*static void new_pad (GstElement *element,GstPad *pad,gpointer data) { GstPad *sinkpad; /* We can now link this pad with the audio decoder */ /*g_print ("Dynamic pad created, linking parser/decoder\n"); sinkpad = gst_element_get_pad (decoder, "sink"); gst_pad_link (pad, sinkpad); gst_object_unref (sinkpad); }*/ int main (int argc,char *argv[]) { GMainLoop *loop; GstBus *bus; /* initialize GStreamer */ gst_init (&argc, &argv); loop = g_main_loop_new (NULL, FALSE); /* check input arguments */ if (argc != 2) { g_print ("Usage: %s \n", argv[0]); return -1; } /* create elements */ pipeline = gst_pipeline_new ("audio-player"); source = gst_element_factory_make ("filesrc", "file-source"); parser = gst_element_factory_make ("mp3parse", "mp3-parser"); decoder = gst_element_factory_make ("mad", "mp3-decoder"); conv = gst_element_factory_make ("audioconvert", "converter"); sink = gst_element_factory_make ("directsoundsink", "directsound-output"); if (!pipeline || !source || !parser || !decoder || !conv || !sink) { g_print ("source element could not be created\n"); return -1; } /* set filename property on the file source. Also add a message * handler. */ g_object_set (G_OBJECT (source), "location", argv[1], NULL); bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); gst_bus_add_watch (bus, bus_call, loop); gst_object_unref (bus); /* put all elements in a bin */ gst_bin_add_many (GST_BIN (pipeline), source, parser, decoder, conv, sink, NULL); /* link together - note that we cannot link the parser and * decoder yet, becuse the parser uses dynamic pads. For that, * we set a pad-added signal handler. */ /*gst_element_link (source, parser); gst_element_link_many (decoder, conv, sink, NULL); g_signal_connect (parser, "pad-added", G_CALLBACK (new_pad), NULL);*/ gst_element_link_many (source, parser, decoder, conv, sink, NULL); /* Now set to playing and iterate. */ g_print ("Setting to PLAYING\n"); gst_element_set_state (pipeline, GST_STATE_PLAYING); g_print ("Running\n"); g_main_loop_run (loop); /* clean up nicely */ g_print ("Returned, stopping playback\n"); gst_element_set_state (pipeline, GST_STATE_NULL); g_print ("Deleting pipeline\n"); gst_object_unref (GST_OBJECT (pipeline)); return 0; }