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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
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#include <gtk/gtk.h>
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#include <gst/gst.h>
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void play (GtkButton *button, gpointer data)
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{
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gtk_signal_emit_by_name(GTK_OBJECT(data), "play");
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}
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void reset (GtkButton *button, gpointer data)
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{
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gtk_signal_emit_by_name(GTK_OBJECT(data), "reset");
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}
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int main(int argc, char **argv)
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{
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guint channels;
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GtkWidget *window, *vbox, *play_button, *reset_button, *quit_button;
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GstElement *disksrc, *mad, *stereo2mono, *pod, *osssink, *pipeline;
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gst_init (&argc, &argv);
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gtk_init (&argc, &argv);
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if (argc!=2) {
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g_print("usage: %s <mp3-filename>\n", argv[0]);
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exit(-1);
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}
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disksrc = gst_elementfactory_make("disksrc", "disksrc");
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mad = gst_elementfactory_make("mad", "mad");
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pod = gst_elementfactory_make("playondemand", "playondemand");
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osssink = gst_elementfactory_make("osssink", "osssink");
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gtk_object_set(GTK_OBJECT(disksrc), "location", argv[1], NULL);
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gtk_object_set(GTK_OBJECT(osssink), "fragment", 0x00180008, NULL);
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gtk_object_get(GTK_OBJECT(disksrc), "channels", &channels, NULL);
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pipeline = gst_pipeline_new("app");
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gst_bin_add(GST_BIN(pipeline), disksrc);
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gst_bin_add(GST_BIN(pipeline), mad);
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gst_bin_add(GST_BIN(pipeline), pod);
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gst_bin_add(GST_BIN(pipeline), osssink);
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gst_element_connect(disksrc, "src", mad, "sink");
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gst_element_connect(pod, "src", osssink, "sink");
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if (channels != 2) {
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gst_element_connect(mad, "src", pod, "sink");
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} else {
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stereo2mono = gst_elementfactory_make("stereo2mono", "stereo2mono");
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gst_bin_add(GST_BIN(pipeline), stereo2mono);
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gst_element_connect(mad, "src", stereo2mono, "sink");
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gst_element_connect(stereo2mono, "src", pod, "sink");
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}
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gst_element_set_state(pipeline, GST_STATE_PLAYING);
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/* initialize gui elements ... */
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window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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vbox = gtk_vbox_new(FALSE, 0);
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play_button = gtk_button_new_with_label("play");
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reset_button = gtk_button_new_with_label("reset");
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quit_button = gtk_button_new_with_label("quit");
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/* do the packing stuff ... */
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gtk_window_set_default_size(GTK_WINDOW(window), 96, 96);
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gtk_container_add(GTK_CONTAINER(window), vbox);
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gtk_box_pack_start(GTK_BOX(vbox), play_button, FALSE, FALSE, 2);
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gtk_box_pack_start(GTK_BOX(vbox), reset_button, FALSE, FALSE, 2);
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gtk_box_pack_start(GTK_BOX(vbox), quit_button, FALSE, FALSE, 2);
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/* connect things ... */
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gtk_signal_connect(GTK_OBJECT(play_button), "clicked", play, pod);
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gtk_signal_connect(GTK_OBJECT(reset_button), "clicked", reset, pod);
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gtk_signal_connect(GTK_OBJECT(quit_button), "clicked", gtk_main_quit, NULL);
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/* show the gui. */
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gtk_widget_show(play_button);
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gtk_widget_show(reset_button);
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gtk_widget_show(quit_button);
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gtk_widget_show(vbox);
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gtk_widget_show(window);
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gtk_idle_add((GtkFunction)gst_bin_iterate, pipeline);
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gtk_main();
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}
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