mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-30 05:31:15 +00:00
144 lines
3.2 KiB
C
144 lines
3.2 KiB
C
#include <glib.h>
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#include <gst/gst.h>
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#include <gst/gstparse.h>
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#include <string.h>
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#include <stdlib.h>
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static int launch_argc;
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static char **launch_argv;
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GtkWidget *window;
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GtkWidget *gtk_socket;
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typedef void (*found_handler) (GstElement *element, gint xid, void *priv);
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void
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arg_search (GstBin *bin, gchar *argname, found_handler handler, void *priv)
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{
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GList *children;
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gchar *ccargname;
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ccargname = g_strdup_printf("::%s",argname);
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children = gst_bin_get_list(bin);
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while (children) {
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GstElement *child;
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child = GST_ELEMENT (children->data);
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children = g_list_next (children);
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if (GST_IS_BIN (child)) arg_search (GST_BIN (child), argname, handler, priv);
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else {
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GtkType type;
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type = GTK_OBJECT_TYPE (child);
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while (type != GTK_TYPE_INVALID) {
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GtkArg *args;
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guint32 *flags;
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guint num_args,i;
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args = gtk_object_query_args(type,&flags,&num_args);
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for (i=0;i<num_args;i++) {
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if (strstr(args[i].name,ccargname)) {
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(handler)(child, gst_util_get_int_arg (GTK_OBJECT (child), argname) ,priv);
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}
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}
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type = gtk_type_parent(type);
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}
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}
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}
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g_free(ccargname);
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}
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void
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handle_have_size (GstElement *element,int width,int height)
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{
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gtk_widget_set_usize(gtk_socket,width,height);
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gtk_widget_show_all(window);
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}
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void
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xid_handler (GstElement *element, gint xid, void *priv)
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{
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window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_socket = gtk_socket_new ();
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gtk_widget_show(gtk_socket);
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gtk_container_add(GTK_CONTAINER(window),gtk_socket);
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gtk_widget_realize(gtk_socket);
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gtk_socket_steal (GTK_SOCKET (gtk_socket), xid);
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gtk_object_set(GTK_OBJECT(window),"allow_grow",TRUE,NULL);
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gtk_object_set(GTK_OBJECT(window),"allow_shrink",TRUE,NULL);
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gtk_signal_connect (GTK_OBJECT (element), "have_size",
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GTK_SIGNAL_FUNC (handle_have_size), element);
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}
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gboolean
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idle_func (gpointer data)
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{
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return gst_bin_iterate (GST_BIN (data));
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}
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int
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main(int argc, char *argv[])
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{
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GstElement *pipeline;
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char **argvn;
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gchar *cmdline;
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int i;
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gst_init (&argc, &argv);
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launch_argc = argc;
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launch_argv = argv;
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pipeline = gst_pipeline_new ("launch");
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// make a null-terminated version of argv
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argvn = g_new0 (char *,argc);
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memcpy (argvn, argv+1, sizeof (char*) * (argc-1));
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// escape spaces
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for (i=0; i<argc-1; i++) {
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gchar **split;
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split = g_strsplit (argvn[i], " ", 0);
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argvn[i] = g_strjoinv ("\\ ", split);
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g_strfreev (split);
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}
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// join the argvs together
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cmdline = g_strjoinv (" ", argvn);
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// free the null-terminated argv
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g_free (argvn);
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// fail if there are no pipes in it (needs pipes for a pipeline
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if (!strchr(cmdline,'!')) {
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fprintf(stderr,"ERROR: no pipeline description found on commandline\n");
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exit(1);
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}
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gst_parse_launch (cmdline, GST_BIN (pipeline));
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arg_search(GST_BIN(pipeline),"xid",xid_handler,NULL);
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// xmlSaveFile("gstreamer-launch.gst",gst_xml_write(pipeline));
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fprintf(stderr,"RUNNING pipeline\n");
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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gtk_idle_add(idle_func,pipeline);
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gtk_main();
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gst_element_set_state (pipeline, GST_STATE_NULL);
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return 0;
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}
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