examples: add a test for difference position formats

The test runs position and duration queries on the pipeline in all formats.

tests/icles/.gitignore

@@ -1,5 +1,6 @@
 audio-trickplay
 playbin-text
+position-formats
 stress-playbin
 stress-xoverlay
 test-textoverlay

tests/icles/Makefile.am

@@ -46,6 +46,10 @@ playbin_text_SOURCES = playbin-text.c
 playbin_text_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
 playbin_text_LDADD = $(GST_LIBS) $(LIBM)
 
+position_formats_SOURCES = position-formats.c
+position_formats_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
+position_formats_LDADD = $(GST_LIBS) $(LIBM)
+
 stress_playbin_SOURCES = stress-playbin.c
 stress_playbin_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
 stress_playbin_LDADD = $(GST_LIBS) $(LIBM)
@@ -59,4 +63,5 @@ test_box_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
 test_box_LDADD = $(GST_LIBS) $(LIBM)
 
 noinst_PROGRAMS = $(X_TESTS) $(PANGO_TESTS) \
-        audio-trickplay playbin-text stress-playbin test-scale test-box
+	audio-trickplay playbin-text position-formats stress-playbin \
+	test-scale test-box

tests/icles/position-formats.c

@@ -0,0 +1,149 @@
+/*
+ * position-formats.c
+ *
+ * we mostly use GST_FORMAT_TIME in queries and seeks. Test the other ones to
+ * know what works and what not.
+ */
+
+#include <gst/gst.h>
+
+#include <stdio.h>
+
+static gboolean
+bus_message (GstBus * bus, GstMessage * message, gpointer user_data)
+{
+  GMainLoop *loop = (GMainLoop *) user_data;
+
+  switch (GST_MESSAGE_TYPE (message)) {
+    case GST_MESSAGE_ERROR:
+    {
+      GError *gerror;
+      gchar *debug;
+
+      gst_message_parse_error (message, &gerror, &debug);
+      gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);
+      g_error_free (gerror);
+      g_free (debug);
+
+      g_main_loop_quit (loop);
+      break;
+    }
+    case GST_MESSAGE_WARNING:
+    {
+      GError *gerror;
+      gchar *debug;
+
+      gst_message_parse_warning (message, &gerror, &debug);
+      gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);
+      g_error_free (gerror);
+      g_free (debug);
+
+      g_main_loop_quit (loop);
+      break;
+    }
+    case GST_MESSAGE_EOS:
+      g_main_loop_quit (loop);
+      break;
+    default:
+      break;
+  }
+  return TRUE;
+}
+
+static void
+print_value (gboolean res, GstFormat fmt, gint64 val)
+{
+  if (res) {
+    switch (fmt) {
+      case GST_FORMAT_TIME:
+        printf ("%" GST_TIME_FORMAT, GST_TIME_ARGS (val));
+        break;
+      case GST_FORMAT_PERCENT:
+        printf ("%8.4lf%%", (gdouble) val / GST_FORMAT_PERCENT_SCALE);
+        break;
+      case GST_FORMAT_DEFAULT:
+      case GST_FORMAT_BYTES:
+      case GST_FORMAT_BUFFERS:
+      default:
+        printf ("%" G_GINT64_FORMAT, val);
+        break;
+    }
+  } else {
+    printf ("-");
+  }
+}
+
+static gboolean
+run_queries (gpointer user_data)
+{
+  GstElement *bin = (GstElement *) user_data;
+  GstFormat i, fmt;
+  gint64 pos, dur;
+  gboolean pres, dres;
+
+  for (i = GST_FORMAT_DEFAULT; i <= GST_FORMAT_PERCENT; i++) {
+    fmt = i;
+    pres = gst_element_query_position (bin, &fmt, &pos);
+    fmt = i;
+    dres = gst_element_query_duration (bin, &fmt, &dur);
+    printf ("%-8s : ", gst_format_get_name (i));
+    print_value (pres, fmt, pos);
+    printf (" / ");
+    print_value (dres, fmt, dur);
+    printf ("\n");
+  }
+  printf ("\n");
+
+  return TRUE;
+}
+
+gint
+main (gint argc, gchar ** argv)
+{
+  gint res = 1;
+  GstElement *bin;
+  GstBus *bus;
+  GMainLoop *loop;
+  const gchar *uri;
+
+  gst_init (&argc, &argv);
+
+  if (argc < 2) {
+    printf ("Usage: %s <uri>\n", argv[0]);
+    goto Error;
+  }
+  uri = argv[1];
+
+  /* build pipeline */
+  bin = gst_element_factory_make ("playbin2", NULL);
+  if (!bin) {
+    GST_WARNING ("need playbin2 from gst-plugins-base");
+    goto Error;
+  }
+
+  g_object_set (bin, "uri", uri, NULL);
+
+  loop = g_main_loop_new (NULL, TRUE);
+
+  /* add watch for messages */
+  bus = gst_pipeline_get_bus (GST_PIPELINE (bin));
+  gst_bus_add_watch (bus, (GstBusFunc) bus_message, (gpointer) loop);
+  gst_object_unref (bus);
+
+  /* add timeout for queries */
+  g_timeout_add (1000, (GSourceFunc) run_queries, (gpointer) bin);
+
+  /* run the show */
+  if (gst_element_set_state (bin,
+          GST_STATE_PLAYING) != GST_STATE_CHANGE_FAILURE) {
+    g_main_loop_run (loop);
+    gst_element_set_state (bin, GST_STATE_NULL);
+  }
+
+  /* cleanup */
+  g_main_loop_unref (loop);
+  gst_object_unref (G_OBJECT (bin));
+  res = 0;
+Error:
+  return (res);
+}