gst/selector/gstinputselector.*: Added "select-all" property to make it work like aggregator in 0.8.

Original commit message from CVS:
* gst/selector/gstinputselector.c:
* gst/selector/gstinputselector.h:
Added "select-all" property to make it work like aggregator in 0.8.
* gst/selector/gstoutputselector.c:
Fix resend-latest behavoiur.
* tests/check/Makefile.am:
* tests/check/elements/.cvsignore:
* tests/check/elements/selector.c:
Add unit tests for selector.

2 files changed, 387 insertions, 0 deletions

diff --git a/tests/check/elements/.gitignore b/tests/check/elements/.gitignore
index 3ec9ac29..4f802bc2 100644
--- a/tests/check/elements/.gitignore
+++ b/tests/check/elements/.gitignore
@@ -9,6 +9,7 @@ souphttpsrc
 rganalysis
 rglimiter
 rgvolume
+selector
 spectrum
 timidity
 videocrop
diff --git a/tests/check/elements/selector.c b/tests/check/elements/selector.c
new file mode 100644
index 00000000..c4f6ca8d
--- /dev/null
+++ b/tests/check/elements/selector.c
@@ -0,0 +1,386 @@
+/* GStreamer
+ *
+ * Unit test for selector plugin
+ * Copyright (C) 2008 Nokia Corporation. (contact <stefan.kost@nokia.com>)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <gst/check/gstcheck.h>
+
+#define NUM_SELECTOR_PADS 4
+#define NUM_INPUT_BUFFERS 4     // buffers to send per each selector pad
+
+static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS_ANY);
+
+/* Data probe cb to drop everything but count buffers and events */
+gboolean
+probe_cb (GstPad * pad, GstMiniObject * obj, gpointer user_data)
+{
+  gint count = 0;
+  gchar *count_type = NULL;
+
+  GST_LOG_OBJECT (pad, "got data");
+
+  if (GST_IS_BUFFER (obj)) {
+    count_type = "buffer_count";
+  } else if (GST_IS_EVENT (obj)) {
+    count_type = "event_count";
+  } else {
+    g_assert_not_reached ();
+  }
+
+  /* increment and store count */
+  count = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (pad), count_type));
+  count++;
+  g_object_set_data (G_OBJECT (pad), count_type, GINT_TO_POINTER (count));
+
+  /* drop everything */
+  return FALSE;
+}
+
+/* Create and link output pad: selector:src%d ! output_pad */
+GstPad *
+setup_output_pad (GstElement * element)
+{
+  GstPad *srcpad = NULL, *output_pad = NULL;
+  gulong probe_id = 0;
+
+  /* create output_pad */
+  output_pad = gst_pad_new_from_static_template (&sinktemplate, "sink");
+  fail_if (output_pad == NULL, "Could not create a output_pad");
+
+  /* add probe */
+  probe_id = gst_pad_add_data_probe (output_pad, G_CALLBACK (probe_cb), NULL);
+  g_object_set_data (G_OBJECT (output_pad), "probe_id",
+      GINT_TO_POINTER (probe_id));
+
+  /* request src pad */
+  srcpad = gst_element_get_request_pad (element, "src%d");
+  fail_if (srcpad == NULL, "Could not get source pad from %s",
+      GST_ELEMENT_NAME (element));
+
+  /* link pads and activate */
+  fail_unless (gst_pad_link (srcpad, output_pad) == GST_PAD_LINK_OK,
+      "Could not link %s source and output pad", GST_ELEMENT_NAME (element));
+
+  gst_pad_set_active (output_pad, TRUE);
+
+  GST_DEBUG_OBJECT (output_pad, "set up %" GST_PTR_FORMAT " ! %" GST_PTR_FORMAT,
+      srcpad, output_pad);
+
+  gst_object_unref (srcpad);
+  ASSERT_OBJECT_REFCOUNT (srcpad, "srcpad", 1);
+
+  return output_pad;
+}
+
+/* Clean up output/input pad and respective selector request pad */
+void
+cleanup_pad (GstPad * pad, GstElement * element)
+{
+  GstPad *selpad = NULL;
+  guint probe_id = 0;
+
+  fail_if (pad == NULL, "pad doesn't exist");
+
+  /* remove probe if necessary */
+  probe_id = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (pad), "probe_id"));
+  if (probe_id)
+    gst_pad_remove_data_probe (pad, probe_id);
+
+  /* unlink */
+  selpad = gst_pad_get_peer (pad);
+  if (GST_PAD_DIRECTION (selpad) == GST_PAD_SRC) {
+    gst_pad_unlink (selpad, pad);
+  } else {
+    gst_pad_unlink (pad, selpad);
+  }
+
+  /* caps could have been set, make sure they get unset */
+  gst_pad_set_caps (pad, NULL);
+
+  GST_DEBUG_OBJECT (pad, "clean up %" GST_PTR_FORMAT " and  %" GST_PTR_FORMAT,
+      selpad, pad);
+
+  /* cleanup the pad */
+  gst_pad_set_active (pad, FALSE);
+  ASSERT_OBJECT_REFCOUNT (pad, "pad", 1);
+  gst_object_unref (pad);
+
+  /* cleanup selector pad, reffed by this function (_get_peer) and creator */
+  gst_object_unref (selpad);
+  gst_element_release_request_pad (element, selpad);
+}
+
+/* Duplicate and push given buffer many times to all input_pads */
+void
+push_input_buffers (GList * input_pads, GstBuffer * buf, gint num_buffers)
+{
+  GstBuffer *buf_in = NULL;
+  GList *l = input_pads;
+  GstPad *input_pad;
+  gint i = 0;
+
+  while (l != NULL) {
+    input_pad = l->data;
+    GST_DEBUG_OBJECT (input_pad, "pushing %d buffers to %" GST_PTR_FORMAT,
+        num_buffers, input_pad);
+    for (i = 0; i < num_buffers; i++) {
+      buf_in = gst_buffer_copy (buf);
+      fail_unless (gst_pad_push (input_pad, buf_in) == GST_FLOW_OK,
+          "pushing buffer failed");
+    }
+    l = g_list_next (l);
+  }
+}
+
+/* Check that received buffers count match to expected buffers */
+void
+count_output_buffers (GList * output_pads, gint expected_buffers)
+{
+  gint count = 0;
+  GList *l = output_pads;
+  GstPad *output_pad = NULL;
+
+  while (l != NULL) {
+    output_pad = l->data;
+    count =
+        GPOINTER_TO_INT (g_object_get_data (G_OBJECT (output_pad),
+            "buffer_count"));
+    GST_DEBUG_OBJECT (output_pad, "received %d buffers", count);
+    fail_unless (count == expected_buffers,
+        "received/expected buffer count doesn't match %d/%d", count,
+        expected_buffers);
+    count =
+        GPOINTER_TO_INT (g_object_get_data (G_OBJECT (output_pad),
+            "event_count"));
+    GST_DEBUG_OBJECT (output_pad, "received %d events", count);
+    l = g_list_next (l);
+  }
+}
+
+/* Set selector active pad */
+void
+selector_set_active_pad (GstElement * elem, GstPad * selpad)
+{
+  gchar *padname = "";
+
+  if (selpad) {
+    padname = gst_pad_get_name (selpad);
+  }
+
+  g_object_set (G_OBJECT (elem), "active-pad", padname, NULL);
+  GST_DEBUG_OBJECT (elem, "activated selector pad: %s", padname);
+  if (selpad) {
+    g_free (padname);
+  }
+}
+
+/* Push buffers and switch for each selector pad */
+void
+push_switched_buffers (GList * input_pads,
+    GstElement * elem, GList * peer_pads, gint num_buffers)
+{
+  GstBuffer *buf = NULL;
+  GstCaps *caps = NULL;
+  GList *l = peer_pads;
+  GstPad *selpad = NULL;
+
+  /* setup dummy buffer */
+  caps = gst_caps_from_string ("application/x-unknown");
+  buf = gst_buffer_new_and_alloc (1);
+  gst_buffer_set_caps (buf, caps);
+  gst_caps_unref (caps);
+
+  while (l != NULL) {
+    /* set selector pad */
+    selpad = gst_pad_get_peer (GST_PAD (l->data));
+    selector_set_active_pad (elem, selpad);
+    if (selpad) {
+      gst_object_unref (selpad);
+    }
+    /* push buffers */
+    push_input_buffers (input_pads, buf, num_buffers);
+    /* switch to next selector pad */
+    l = g_list_next (l);
+  }
+
+  /* cleanup buffer */
+  gst_buffer_unref (buf);
+}
+
+/* Create output-selector with given number of src pads and switch
+   given number of input buffers to each src pad.
+ */
+void
+run_output_selector_buffer_count (gint num_output_pads,
+    gint num_buffers_per_output)
+{
+  /* setup input_pad ! selector ! output_pads */
+  gint i = 0;
+  GList *output_pads = NULL, *input_pads = NULL;
+  GstElement *sel = gst_check_setup_element ("output-selector");
+  GstPad *input_pad = gst_check_setup_src_pad (sel, &srctemplate, NULL);
+
+  input_pads = g_list_append (input_pads, input_pad);
+  gst_pad_set_active (input_pad, TRUE);
+  for (i = 0; i < num_output_pads; i++) {
+    output_pads = g_list_append (output_pads, setup_output_pad (sel));
+  }
+
+  /* run the test */
+  fail_unless (gst_element_set_state (sel,
+          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
+      "could not set to playing");
+  push_switched_buffers (input_pads, sel, output_pads, num_buffers_per_output);
+  count_output_buffers (output_pads, num_buffers_per_output);
+  fail_unless (gst_element_set_state (sel,
+          GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS, "could not set to null");
+
+  /* cleanup input_pad, selector and output_pads */
+  gst_pad_set_active (input_pad, FALSE);
+  gst_check_teardown_src_pad (sel);
+  g_list_foreach (output_pads, (GFunc) cleanup_pad, sel);
+  g_list_free (output_pads);
+  g_list_free (input_pads);
+  gst_check_teardown_element (sel);
+}
+
+/* Create and link input pad: input_pad ! selector:sink%d */
+GstPad *
+setup_input_pad (GstElement * element)
+{
+  GstPad *sinkpad = NULL, *input_pad = NULL;
+
+  /* create input_pad */
+  input_pad = gst_pad_new_from_static_template (&srctemplate, "src");
+  fail_if (input_pad == NULL, "Could not create a input_pad");
+
+  /* request sink pad */
+  sinkpad = gst_element_get_request_pad (element, "sink%d");
+  fail_if (sinkpad == NULL, "Could not get sink pad from %s",
+      GST_ELEMENT_NAME (element));
+
+  /* link pads and activate */
+  fail_unless (gst_pad_link (input_pad, sinkpad) == GST_PAD_LINK_OK,
+      "Could not link input_pad and %s sink", GST_ELEMENT_NAME (element));
+
+  gst_pad_set_active (input_pad, TRUE);
+
+  GST_DEBUG_OBJECT (input_pad, "set up %" GST_PTR_FORMAT " ! %" GST_PTR_FORMAT,
+      input_pad, sinkpad);
+
+  gst_object_unref (sinkpad);
+  ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 1);
+
+  return input_pad;
+}
+
+/* Create input-selector with given number of sink pads and switch
+   given number of input buffers to each sink pad.
+ */
+void
+run_input_selector_buffer_count (gint num_input_pads,
+    gint num_buffers_per_input)
+{
+  /* set up input_pads ! selector ! output_pad */
+  gint i = 0, probe_id = 0;
+  GList *input_pads = NULL, *output_pads = NULL;
+  GstElement *sel = gst_check_setup_element ("input-selector");
+  GstPad *output_pad = gst_check_setup_sink_pad (sel, &sinktemplate, NULL);
+
+  output_pads = g_list_append (output_pads, output_pad);
+  gst_pad_set_active (output_pad, TRUE);
+  for (i = 0; i < num_input_pads; i++) {
+    input_pads = g_list_append (input_pads, setup_input_pad (sel));
+  }
+  /* add probe */
+  probe_id = gst_pad_add_data_probe (output_pad, G_CALLBACK (probe_cb), NULL);
+  g_object_set_data (G_OBJECT (output_pad), "probe_id",
+      GINT_TO_POINTER (probe_id));
+
+  /* run the test */
+  fail_unless (gst_element_set_state (sel,
+          GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
+      "could not set to playing");
+  push_switched_buffers (input_pads, sel, input_pads, num_buffers_per_input);
+  count_output_buffers (output_pads, (num_input_pads * num_buffers_per_input));
+  fail_unless (gst_element_set_state (sel,
+          GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS, "could not set to null");
+
+  /* clean up */
+  gst_pad_remove_data_probe (output_pad, probe_id);
+  gst_pad_set_active (output_pad, FALSE);
+  gst_check_teardown_sink_pad (sel);
+  selector_set_active_pad (sel, NULL);  // unref input-selector active pad
+  g_list_foreach (input_pads, (GFunc) cleanup_pad, sel);
+  g_list_free (input_pads);
+  g_list_free (output_pads);
+  gst_check_teardown_element (sel);
+}
+
+/* Push buffers to input pad and check the 
+   amount of buffers arrived to output pads */
+GST_START_TEST (test_output_selector_buffer_count);
+{
+  gint i, j;
+
+  for (i = 0; i < NUM_SELECTOR_PADS; i++) {
+    for (j = 0; j < NUM_INPUT_BUFFERS; j++) {
+      run_output_selector_buffer_count (i, j);
+    }
+  }
+}
+
+GST_END_TEST;
+
+/* Push buffers to input pads and check the 
+   amount of buffers arrived to output pad */
+GST_START_TEST (test_input_selector_buffer_count);
+{
+  gint i, j;
+
+  for (i = 0; i < NUM_SELECTOR_PADS; i++) {
+    for (j = 0; j < NUM_INPUT_BUFFERS; j++) {
+      run_input_selector_buffer_count (i, j);
+    }
+  }
+}
+
+GST_END_TEST;
+
+Suite *
+selector_suite (void)
+{
+  Suite *s = suite_create ("selector");
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_output_selector_buffer_count);
+  tcase_add_test (tc_chain, test_input_selector_buffer_count);
+
+  return s;
+}
+
+GST_CHECK_MAIN (selector);