elementlink.c

GStreamer是一个开源的多媒体框架库。利用它

/*** block a  from ../../../docs/manual/basics-elements.xml ***/
#include <gst/gst.h>

int
main (int   argc,
      char *argv[])
{
  GstElement *pipeline;
  GstElement *source, *filter, *sink;

  /* init */
  gst_init (&argc, &argv);

  /* create pipeline */
  pipeline = gst_pipeline_new ("my-pipeline");

  /* create elements */
  source = gst_element_factory_make ("fakesrc", "source");
  filter = gst_element_factory_make ("identity", "filter");
  sink = gst_element_factory_make ("fakesink", "sink");

  /* must add elements to pipeline before linking them */
  gst_bin_add_many (GST_BIN (pipeline), source, filter, sink, NULL);

  /* link */
  if (!gst_element_link_many (source, filter, sink, NULL)) {
    g_warning ("Failed to link elements!");
  }

/*** block b  from ../../../docs/manual/basics-elements.xml ***/
  return 0;

/*** block c  from ../../../docs/manual/basics-elements.xml ***/
}