C++ (Cpp) gst_parse_launchv Examples

Example #1

File: parse-disabled.c Project: kuailexs/symbiandump-mw1

void test_parse_launch_errors()
{
  GstElement *pipe;
  GError *err;
  const gchar *arr[] = { "fakesrc", "fakesink", NULL };

  std_log(LOG_FILENAME_LINE, "Test started test_parse_launch_errors");
  
  err = NULL;
  pipe = gst_parse_launch ("fakesrc ! fakesink", &err);
  fail_unless (err != NULL, "expected an error, but did not get one");
  fail_unless (pipe == NULL, "got pipeline, but expected NULL");
  fail_unless (err->domain == GST_CORE_ERROR);
  fail_unless (err->code == GST_CORE_ERROR_DISABLED);
  g_error_free (err);

  err = NULL;
  pipe = gst_parse_bin_from_description ("fakesrc ! fakesink", TRUE, &err);
  fail_unless (err != NULL, "expected an error, but did not get one");
  fail_unless (pipe == NULL, "got pipeline, but expected NULL");
  fail_unless (err->domain == GST_CORE_ERROR);
  fail_unless (err->code == GST_CORE_ERROR_DISABLED);
  g_error_free (err);

  err = NULL;
  pipe = gst_parse_launchv (arr, &err);
  fail_unless (err != NULL, "expected an error, but did not get one");
  fail_unless (pipe == NULL, "got pipeline, but expected NULL");
  fail_unless (err->domain == GST_CORE_ERROR);
  fail_unless (err->code == GST_CORE_ERROR_DISABLED);
  g_error_free (err);
  
  std_log(LOG_FILENAME_LINE, "Test Successful");
  create_xml(0);
}

Example #2

File: volume.c Project: Lachann/gst-plugins-base

int
main (int argc, char *argv[])
{

  GstElement *pipeline = NULL;

#ifndef GST_DISABLE_PARSE
  GError *error = NULL;
#endif
  GstElement *volume;
  GstBus *bus;

#ifdef GST_DISABLE_PARSE
  g_print ("GStreamer was built without pipeline parsing capabilities.\n");
  g_print
      ("Please rebuild GStreamer with pipeline parsing capabilities activated to use this example.\n");
  return 1;
#else
  gst_init (&argc, &argv);
  gtk_init (&argc, &argv);

  pipeline = gst_parse_launchv ((const gchar **) &argv[1], &error);
  if (error) {
    g_print ("pipeline could not be constructed: %s\n", error->message);
    g_print ("Please give a complete pipeline  with a 'volume' element.\n");
    g_print ("Example: audiotestsrc ! volume ! %s\n", DEFAULT_AUDIOSINK);
    g_error_free (error);
    return 1;
  }
#endif
  volume = gst_bin_get_by_name (GST_BIN (pipeline), "volume0");
  if (volume == NULL) {
    g_print ("Please give a pipeline with a 'volume' element in it\n");
    return 1;
  }

  /* setup message handling */
  bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
  gst_bus_add_signal_watch_full (bus, G_PRIORITY_HIGH);
  g_signal_connect (bus, "message::error", (GCallback) message_received,
      pipeline);
  g_signal_connect (bus, "message::warning", (GCallback) message_received,
      pipeline);
  g_signal_connect (bus, "message::eos", (GCallback) eos_message_received,
      pipeline);

  /* setup GUI */
  setup_gui (volume);

  /* go to main loop */
  gst_element_set_state (pipeline, GST_STATE_PLAYING);
  gtk_main ();
  gst_element_set_state (pipeline, GST_STATE_NULL);
  gst_object_unref (pipeline);

  return 0;
}

Example #3

File: ts-parser.c Project: agx/gst-plugins-bad

int
main (int argc, gchar ** argv)
{
  GstElement *pipeline = NULL;
  GError *error = NULL;
  GstBus *bus;
  GMainLoop *mainloop;

  gst_init (&argc, &argv);

  gst_mpegts_initialize ();

  pipeline = gst_parse_launchv ((const gchar **) &argv[1], &error);
  if (error) {
    g_printf ("pipeline could not be constructed: %s\n", error->message);
    g_error_free (error);
    return 1;
  }

  /* Hack: ensure all enum type classes are loaded */
  g_type_class_ref (GST_TYPE_MPEG_TS_SECTION_TYPE);
  g_type_class_ref (GST_TYPE_MPEG_TS_SECTION_TABLE_ID);
  g_type_class_ref (GST_TYPE_MPEG_TS_RUNNING_STATUS);
  g_type_class_ref (GST_TYPE_MPEG_TS_DESCRIPTOR_TYPE);
  g_type_class_ref (GST_TYPE_MPEG_TS_DVB_DESCRIPTOR_TYPE);
  g_type_class_ref (GST_TYPE_MPEG_TS_ATSC_DESCRIPTOR_TYPE);
  g_type_class_ref (GST_TYPE_MPEG_TS_ISDB_DESCRIPTOR_TYPE);
  g_type_class_ref (GST_TYPE_MPEG_TS_MISC_DESCRIPTOR_TYPE);
  g_type_class_ref (GST_TYPE_MPEG_TS_ISO639_AUDIO_TYPE);
  g_type_class_ref (GST_TYPE_MPEG_TS_DVB_SERVICE_TYPE);
  g_type_class_ref (GST_TYPE_MPEG_TS_STREAM_TYPE);

  mainloop = g_main_loop_new (NULL, FALSE);

  /* Put a bus handler */
  bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
  gst_bus_add_signal_watch (bus);
  g_signal_connect (bus, "message", (GCallback) _on_bus_message, mainloop);

  /* Start pipeline */
  gst_element_set_state (pipeline, GST_STATE_PLAYING);
  g_main_loop_run (mainloop);

  gst_element_set_state (pipeline, GST_STATE_NULL);

  gst_object_unref (pipeline);
  gst_object_unref (bus);

  return 0;
}

Example #4

File: demo.c Project: cbetz421/gst-plugins-bad

int
main (int argc, char *argv[])
{

  GstElement *pipeline = NULL;
  GError *error = NULL;
  GstElement *level;

  gst_init (&argc, &argv);
  gtk_init (&argc, &argv);

  pipeline = gst_parse_launchv ((const gchar **) &argv[1], &error);
  if (error) {
    g_print ("pipeline could not be constructed: %s\n", error->message);
    g_print ("Please give a complete pipeline  with a 'level' element.\n");
    g_print ("Example: sinesrc ! level ! %s\n", DEFAULT_AUDIOSINK);
    g_error_free (error);
    return 1;
  }

  level = gst_bin_get_by_name (GST_BIN (pipeline), "level0");
  if (level == NULL) {
    g_print ("Please give a pipeline with a 'level' element in it\n");
    return 1;
  }

  g_object_set (level, "signal", TRUE, NULL);
  g_signal_connect (level, "level", G_CALLBACK (level_callback), NULL);


  /* setup GUI */
  setup_gui ();

  /* connect level signal */

  /* go to main loop */
  gst_element_set_state (pipeline, GST_STATE_PLAYING);
  g_idle_add (idler, pipeline);

  gtk_main ();

  return 0;
}