tests/check/gst/gstbufferlist.c - mtk-gstreamer-debian - Git at Google

 /* GStreamer
  *
  * unit test for GstBufferList
  *
  * Copyright (C) 2009 Axis Communications <dev-gstreamer at axis dot com>
  * @author Jonas Holmberg <jonas dot holmberg at axis dot 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., 51 Franklin St, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */

 #include <gst/check/gstcheck.h>
 #include <gst/gstbufferlist.h>
 #include <string.h>

 static GstBufferList *list;

 static void
 setup (void)
 {
   list = gst_buffer_list_new ();
 }

 static void
 cleanup (void)
 {
   gst_buffer_list_unref (list);
   list = NULL;
 }

 GST_START_TEST (test_add_and_iterate)
 {
   GstBuffer *buf1;
   GstBuffer *buf2;

   /* buffer list is initially empty */
   fail_unless (gst_buffer_list_length (list) == 0);

   ASSERT_CRITICAL (gst_buffer_list_insert (list, 0, NULL));
   ASSERT_CRITICAL (gst_buffer_list_insert (NULL, 0, NULL));

   buf1 = gst_buffer_new ();

   /* add a group of 2 buffers */
   fail_unless (gst_buffer_list_length (list) == 0);
   ASSERT_CRITICAL (gst_buffer_list_insert (list, -1, NULL));
   ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 1);
   gst_buffer_list_add (list, buf1);
   ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 1);     /* list takes ownership */
   fail_unless (gst_buffer_list_length (list) == 1);
   buf2 = gst_buffer_new ();
   gst_buffer_list_add (list, buf2);
   ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 1);
   fail_unless (gst_buffer_list_length (list) == 2);
 }

 GST_END_TEST;

 GST_START_TEST (test_remove)
 {
   GstBuffer *buf;

   /* buffer list is initially empty */
   fail_unless (gst_buffer_list_length (list) == 0);

   buf = gst_buffer_new ();

   /* add our own ref so it stays alive after removal from the list */
   buf = gst_buffer_ref (buf);

   /* add a buffer */
   fail_unless (gst_buffer_list_length (list) == 0);
   ASSERT_CRITICAL (gst_buffer_list_insert (list, -1, NULL));
   ASSERT_BUFFER_REFCOUNT (buf, "buf", 2);
   gst_buffer_list_add (list, buf);
   ASSERT_BUFFER_REFCOUNT (buf, "buf", 2);       /* list takes ownership */
   fail_unless (gst_buffer_list_length (list) == 1);
   gst_buffer_list_remove (list, 0, 1);
   ASSERT_BUFFER_REFCOUNT (buf, "buf", 1);
   gst_buffer_unref (buf);
   fail_unless (gst_buffer_list_length (list) == 0);
 }

 GST_END_TEST;

 GST_START_TEST (test_make_writable)
 {
   GstBufferList *wlist;
   GstBuffer *buf1;
   GstBuffer *buf2;
   GstBuffer *buf3;
   GstBuffer *buf;

   /* add buffers to list */
   buf1 = gst_buffer_new_allocate (NULL, 1, NULL);
   gst_buffer_list_add (list, buf1);

   buf2 = gst_buffer_new_allocate (NULL, 2, NULL);
   buf3 = gst_buffer_new_allocate (NULL, 3, NULL);
   gst_buffer_list_add (list, gst_buffer_append (buf2, buf3));

   /* making it writable with refcount 1 returns the same list */
   wlist = gst_buffer_list_make_writable (list);
   fail_unless (wlist == list);
   fail_unless_equals_int (gst_buffer_list_length (list), 2);
   buf = gst_buffer_list_get (list, 0);
   fail_unless (buf == buf1);
   ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 1);
   fail_unless_equals_int (gst_buffer_get_size (buf), 1);
   buf = gst_buffer_list_get (list, 1);
   fail_unless (buf == buf2);
   ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 1);
   fail_unless_equals_int (gst_buffer_n_memory (buf), 2);

   /* making it writable with refcount 2 returns a copy of the list with
    * increased refcount on the buffers in the list */
   gst_buffer_list_ref (list);
   fail_unless_equals_int (GST_MINI_OBJECT_REFCOUNT_VALUE (list), 2);
   wlist = gst_buffer_list_make_writable (list);
   fail_unless_equals_int (GST_MINI_OBJECT_REFCOUNT_VALUE (list), 1);
   fail_unless_equals_int (GST_MINI_OBJECT_REFCOUNT_VALUE (wlist), 1);
   fail_unless (wlist != list);
   /* check list */
   fail_unless_equals_int (gst_buffer_list_length (list), 2);
   buf = gst_buffer_list_get (list, 0);
   fail_unless (buf == buf1);
   ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 2);
   fail_unless_equals_int (gst_buffer_get_size (buf), 1);
   buf = gst_buffer_list_get (list, 1);
   fail_unless (buf == buf2);
   ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 2);
   fail_unless_equals_int (gst_buffer_n_memory (buf), 2);
   /* check wlist */
   fail_unless_equals_int (gst_buffer_list_length (wlist), 2);
   buf = gst_buffer_list_get (wlist, 0);
   fail_unless (buf == buf1);
   ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 2);
   fail_unless_equals_int (gst_buffer_get_size (buf), 1);
   buf = gst_buffer_list_get (wlist, 1);
   fail_unless (buf == buf2);
   ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 2);
   fail_unless_equals_int (gst_buffer_n_memory (buf), 2);
   gst_buffer_list_unref (wlist);
   /* list will be unrefed in cleanup hook */
 }

 GST_END_TEST;

 GST_START_TEST (test_copy)
 {
   GstBufferList *list_copy;
   GstBuffer *buf1;
   GstBuffer *buf2;
   GstBuffer *buf3;
   GstBuffer *buf;

   /* add buffers to the list */
   buf1 = gst_buffer_new_allocate (NULL, 1, NULL);
   gst_buffer_list_add (list, buf1);

   buf2 = gst_buffer_new_allocate (NULL, 2, NULL);
   buf3 = gst_buffer_new_allocate (NULL, 3, NULL);
   gst_buffer_list_add (list, gst_buffer_append (buf2, buf3));

   /* make a copy */
   list_copy = gst_buffer_list_copy (list);
   fail_unless (GST_MINI_OBJECT_REFCOUNT_VALUE (list) == 1);
   fail_unless (GST_MINI_OBJECT_REFCOUNT_VALUE (list_copy) == 1);
   fail_unless (list_copy != list);
   fail_unless_equals_int (gst_buffer_list_length (list_copy), 2);
   buf = gst_buffer_list_get (list_copy, 0);
   fail_unless (buf == buf1);
   ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 2);
   fail_unless_equals_int (gst_buffer_get_size (buf1), 1);
   buf = gst_buffer_list_get (list_copy, 1);
   fail_unless (buf == buf2);
   ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 2);
   fail_unless_equals_int (gst_buffer_get_size (buf2), 5);
   fail_unless_equals_int (gst_buffer_n_memory (buf2), 2);

   gst_buffer_list_unref (list_copy);
 }

 GST_END_TEST;

 GST_START_TEST (test_copy_deep)
 {
   GstBufferList *list_copy;
   GstMapInfo info, sinfo;
   GstBuffer *buf1;
   GstBuffer *buf2;
   GstBuffer *buf_copy;

   /* add buffers to the list */
   buf1 = gst_buffer_new_allocate (NULL, 1, NULL);
   gst_buffer_list_add (list, buf1);

   buf2 = gst_buffer_new_allocate (NULL, 2, NULL);
   gst_buffer_list_add (list, buf2);

   /* make a copy */
   list_copy = gst_buffer_list_copy_deep (list);
   fail_unless (GST_MINI_OBJECT_REFCOUNT_VALUE (list) == 1);
   fail_unless (GST_MINI_OBJECT_REFCOUNT_VALUE (list_copy) == 1);
   fail_unless (list_copy != list);
   fail_unless_equals_int (gst_buffer_list_length (list_copy), 2);

   buf_copy = gst_buffer_list_get (list_copy, 0);
   /* each buffer in the list is copied and must point to different memory */
   fail_unless (buf_copy != buf1);
   ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 1);
   fail_unless_equals_int (gst_buffer_get_size (buf1), 1);

   buf_copy = gst_buffer_list_get (list_copy, 1);
   fail_unless (buf_copy != buf2);
   ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 1);
   fail_unless_equals_int (gst_buffer_get_size (buf2), 2);

   fail_unless (gst_buffer_map (buf2, &info, GST_MAP_READ));
   fail_unless (gst_buffer_map (buf_copy, &sinfo, GST_MAP_READ));

   /* NOTE that data is refcounted */
   fail_unless (info.size == sinfo.size);
   /* copy_deep() forces new GstMemory to be used */
   fail_unless (info.data != sinfo.data);

   gst_buffer_unmap (buf_copy, &sinfo);
   gst_buffer_unmap (buf2, &info);

   gst_buffer_list_unref (list_copy);
 }

 GST_END_TEST;

 typedef struct
 {
   GstBuffer *buf[2];
   guint iter;
 } ForeachData;

 static gboolean
 foreach_func1 (GstBuffer ** buffer, guint idx, ForeachData * data)
 {
   fail_unless (buffer != NULL);
   fail_unless (GST_IS_BUFFER (*buffer));
   fail_unless (*buffer == data->buf[idx]);

   data->iter++;

   return TRUE;
 }

 static gboolean
 foreach_func3 (GstBuffer ** buffer, guint idx, ForeachData * data)
 {
   fail_unless (idx == 0);
   fail_unless (buffer != NULL);
   fail_unless (GST_IS_BUFFER (*buffer));
   fail_unless (*buffer == data->buf[idx]);

   data->iter++;

   return FALSE;
 }

 static gboolean
 foreach_func4 (GstBuffer ** buffer, guint idx, ForeachData * data)
 {
   fail_unless (idx == 0);
   fail_unless (buffer != NULL);
   fail_unless (GST_IS_BUFFER (*buffer));
   fail_unless (*buffer == data->buf[data->iter]);

   /* remove first */
   if (*buffer == data->buf[0]) {
     gst_buffer_unref (*buffer);
     *buffer = NULL;
   }

   data->iter++;

   return TRUE;
 }

 static gboolean
 foreach_func5 (GstBuffer ** buffer, guint idx, ForeachData * data)
 {
   fail_unless (buffer != NULL);
   fail_unless (GST_IS_BUFFER (*buffer));

   data->iter++;

   return TRUE;
 }

 GST_START_TEST (test_foreach)
 {
   GstBuffer *buf2, *buf3;
   ForeachData data;

   /* add buffers to the list */
   data.buf[0] = gst_buffer_new_allocate (NULL, 1, NULL);
   gst_buffer_list_add (list, data.buf[0]);

   buf2 = gst_buffer_new_allocate (NULL, 2, NULL);
   buf3 = gst_buffer_new_allocate (NULL, 3, NULL);
   data.buf[1] = gst_buffer_append (buf2, buf3);
   gst_buffer_list_add (list, data.buf[1]);

   fail_unless (gst_buffer_list_get (list, 0) == data.buf[0]);
   fail_unless (gst_buffer_list_get (list, 1) == data.buf[1]);

   /* iterate everything */
   data.iter = 0;
   gst_buffer_list_foreach (list, (GstBufferListFunc) foreach_func1, &data);
   fail_unless (data.iter == 2);

   /* iterate only the first buffer */
   data.iter = 0;
   gst_buffer_list_foreach (list, (GstBufferListFunc) foreach_func3, &data);
   fail_unless (data.iter == 1);

   /* remove the first buffer */
   data.iter = 0;
   gst_buffer_list_foreach (list, (GstBufferListFunc) foreach_func4, &data);
   fail_unless (data.iter == 2);

   fail_unless (gst_buffer_list_get (list, 0) == data.buf[1]);
   fail_unless_equals_int (gst_buffer_list_length (list), 1);

   /* iterate everything, just one more buffer now */
   data.iter = 0;
   gst_buffer_list_foreach (list, (GstBufferListFunc) foreach_func5, &data);
   fail_unless (data.iter == 1);
 }

 GST_END_TEST;

 /* make sure everything is fine if we exceed the pre-allocated size */
 GST_START_TEST (test_expand_and_remove)
 {
   GArray *arr;
   GstBuffer *buf;
   guint i, idx, num, counter = 0;

   gst_buffer_list_unref (list);

   arr = g_array_new (FALSE, FALSE, sizeof (guint));

   list = gst_buffer_list_new_sized (1);

   for (i = 0; i < 250; ++i) {
     num = ++counter;
     buf = gst_buffer_new_allocate (NULL, num, NULL);
     gst_buffer_list_add (list, buf);
     g_array_append_val (arr, num);
   }

   for (i = 0; i < 250; ++i) {
     num = ++counter;
     buf = gst_buffer_new_allocate (NULL, num, NULL);
     idx = g_random_int_range (0, gst_buffer_list_length (list));
     gst_buffer_list_insert (list, idx, buf);
     g_array_insert_val (arr, idx, num);
   }

   /* make sure the list looks like it should */
   fail_unless_equals_int (arr->len, gst_buffer_list_length (list));
   for (i = 0; i < arr->len; ++i) {
     buf = gst_buffer_list_get (list, i);
     num = gst_buffer_get_size (buf);
     fail_unless_equals_int (num, g_array_index (arr, guint, i));
   }

   for (i = 0; i < 44; ++i) {
     num = g_random_int_range (1, 5);
     idx = g_random_int_range (0, gst_buffer_list_length (list) - num);
     gst_buffer_list_remove (list, idx, num);
     g_array_remove_range (arr, idx, num);
   }

   /* make sure the list still looks like it should */
   fail_unless_equals_int (arr->len, gst_buffer_list_length (list));
   for (i = 0; i < arr->len; ++i) {
     buf = gst_buffer_list_get (list, i);
     num = gst_buffer_get_size (buf);
     fail_unless_equals_int (num, g_array_index (arr, guint, i));
   }

   for (i = 0; i < 500; ++i) {
     num = ++counter;
     buf = gst_buffer_new_allocate (NULL, num, NULL);
     gst_buffer_list_add (list, buf);
     g_array_append_val (arr, num);
   }

   for (i = 0; i < 500; ++i) {
     num = ++counter;
     buf = gst_buffer_new_allocate (NULL, num, NULL);
     idx = g_random_int_range (0, gst_buffer_list_length (list));
     gst_buffer_list_insert (list, idx, buf);
     g_array_insert_val (arr, idx, num);
   }

   /* make sure the list still looks like it should */
   fail_unless_equals_int (arr->len, gst_buffer_list_length (list));
   for (i = 0; i < arr->len; ++i) {
     buf = gst_buffer_list_get (list, i);
     num = gst_buffer_get_size (buf);
     fail_unless_equals_int (num, g_array_index (arr, guint, i));
   }

   g_array_unref (arr);
 }

 GST_END_TEST;

 static Suite *
 gst_buffer_list_suite (void)
 {
   Suite *s = suite_create ("GstBufferList");
   TCase *tc_chain = tcase_create ("general");

   suite_add_tcase (s, tc_chain);
   tcase_add_checked_fixture (tc_chain, setup, cleanup);
   tcase_add_test (tc_chain, test_add_and_iterate);
   tcase_add_test (tc_chain, test_remove);
   tcase_add_test (tc_chain, test_make_writable);
   tcase_add_test (tc_chain, test_copy);
   tcase_add_test (tc_chain, test_copy_deep);
   tcase_add_test (tc_chain, test_foreach);
   tcase_add_test (tc_chain, test_expand_and_remove);

   return s;
 }

 GST_CHECK_MAIN (gst_buffer_list);
	/* GStreamer
	*
	* unit test for GstBufferList
	*
	* Copyright (C) 2009 Axis Communications <dev-gstreamer at axis dot com>
	* @author Jonas Holmberg <jonas dot holmberg at axis dot 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., 51 Franklin St, Fifth Floor,
	* Boston, MA 02110-1301, USA.
	*/

	#include <gst/check/gstcheck.h>
	#include <gst/gstbufferlist.h>
	#include <string.h>

	static GstBufferList *list;

	static void
	setup (void)
	{
	list = gst_buffer_list_new ();
	}

	static void
	cleanup (void)
	{
	gst_buffer_list_unref (list);
	list = NULL;
	}

	GST_START_TEST (test_add_and_iterate)
	{
	GstBuffer *buf1;
	GstBuffer *buf2;

	/* buffer list is initially empty */
	fail_unless (gst_buffer_list_length (list) == 0);

	ASSERT_CRITICAL (gst_buffer_list_insert (list, 0, NULL));
	ASSERT_CRITICAL (gst_buffer_list_insert (NULL, 0, NULL));

	buf1 = gst_buffer_new ();

	/* add a group of 2 buffers */
	fail_unless (gst_buffer_list_length (list) == 0);
	ASSERT_CRITICAL (gst_buffer_list_insert (list, -1, NULL));
	ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 1);
	gst_buffer_list_add (list, buf1);
	ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 1); /* list takes ownership */
	fail_unless (gst_buffer_list_length (list) == 1);
	buf2 = gst_buffer_new ();
	gst_buffer_list_add (list, buf2);
	ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 1);
	fail_unless (gst_buffer_list_length (list) == 2);
	}

	GST_END_TEST;

	GST_START_TEST (test_remove)
	{
	GstBuffer *buf;

	/* buffer list is initially empty */
	fail_unless (gst_buffer_list_length (list) == 0);

	buf = gst_buffer_new ();

	/* add our own ref so it stays alive after removal from the list */
	buf = gst_buffer_ref (buf);

	/* add a buffer */
	fail_unless (gst_buffer_list_length (list) == 0);
	ASSERT_CRITICAL (gst_buffer_list_insert (list, -1, NULL));
	ASSERT_BUFFER_REFCOUNT (buf, "buf", 2);
	gst_buffer_list_add (list, buf);
	ASSERT_BUFFER_REFCOUNT (buf, "buf", 2); /* list takes ownership */
	fail_unless (gst_buffer_list_length (list) == 1);
	gst_buffer_list_remove (list, 0, 1);
	ASSERT_BUFFER_REFCOUNT (buf, "buf", 1);
	gst_buffer_unref (buf);
	fail_unless (gst_buffer_list_length (list) == 0);
	}

	GST_END_TEST;

	GST_START_TEST (test_make_writable)
	{
	GstBufferList *wlist;
	GstBuffer *buf1;
	GstBuffer *buf2;
	GstBuffer *buf3;
	GstBuffer *buf;

	/* add buffers to list */
	buf1 = gst_buffer_new_allocate (NULL, 1, NULL);
	gst_buffer_list_add (list, buf1);

	buf2 = gst_buffer_new_allocate (NULL, 2, NULL);
	buf3 = gst_buffer_new_allocate (NULL, 3, NULL);
	gst_buffer_list_add (list, gst_buffer_append (buf2, buf3));

	/* making it writable with refcount 1 returns the same list */
	wlist = gst_buffer_list_make_writable (list);
	fail_unless (wlist == list);
	fail_unless_equals_int (gst_buffer_list_length (list), 2);
	buf = gst_buffer_list_get (list, 0);
	fail_unless (buf == buf1);
	ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 1);
	fail_unless_equals_int (gst_buffer_get_size (buf), 1);
	buf = gst_buffer_list_get (list, 1);
	fail_unless (buf == buf2);
	ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 1);
	fail_unless_equals_int (gst_buffer_n_memory (buf), 2);

	/* making it writable with refcount 2 returns a copy of the list with
	* increased refcount on the buffers in the list */
	gst_buffer_list_ref (list);
	fail_unless_equals_int (GST_MINI_OBJECT_REFCOUNT_VALUE (list), 2);
	wlist = gst_buffer_list_make_writable (list);
	fail_unless_equals_int (GST_MINI_OBJECT_REFCOUNT_VALUE (list), 1);
	fail_unless_equals_int (GST_MINI_OBJECT_REFCOUNT_VALUE (wlist), 1);
	fail_unless (wlist != list);
	/* check list */
	fail_unless_equals_int (gst_buffer_list_length (list), 2);
	buf = gst_buffer_list_get (list, 0);
	fail_unless (buf == buf1);
	ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 2);
	fail_unless_equals_int (gst_buffer_get_size (buf), 1);
	buf = gst_buffer_list_get (list, 1);
	fail_unless (buf == buf2);
	ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 2);
	fail_unless_equals_int (gst_buffer_n_memory (buf), 2);
	/* check wlist */
	fail_unless_equals_int (gst_buffer_list_length (wlist), 2);
	buf = gst_buffer_list_get (wlist, 0);
	fail_unless (buf == buf1);
	ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 2);
	fail_unless_equals_int (gst_buffer_get_size (buf), 1);
	buf = gst_buffer_list_get (wlist, 1);
	fail_unless (buf == buf2);
	ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 2);
	fail_unless_equals_int (gst_buffer_n_memory (buf), 2);
	gst_buffer_list_unref (wlist);
	/* list will be unrefed in cleanup hook */
	}

	GST_END_TEST;

	GST_START_TEST (test_copy)
	{
	GstBufferList *list_copy;
	GstBuffer *buf1;
	GstBuffer *buf2;
	GstBuffer *buf3;
	GstBuffer *buf;

	/* add buffers to the list */
	buf1 = gst_buffer_new_allocate (NULL, 1, NULL);
	gst_buffer_list_add (list, buf1);

	buf2 = gst_buffer_new_allocate (NULL, 2, NULL);
	buf3 = gst_buffer_new_allocate (NULL, 3, NULL);
	gst_buffer_list_add (list, gst_buffer_append (buf2, buf3));

	/* make a copy */
	list_copy = gst_buffer_list_copy (list);
	fail_unless (GST_MINI_OBJECT_REFCOUNT_VALUE (list) == 1);
	fail_unless (GST_MINI_OBJECT_REFCOUNT_VALUE (list_copy) == 1);
	fail_unless (list_copy != list);
	fail_unless_equals_int (gst_buffer_list_length (list_copy), 2);
	buf = gst_buffer_list_get (list_copy, 0);
	fail_unless (buf == buf1);
	ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 2);
	fail_unless_equals_int (gst_buffer_get_size (buf1), 1);
	buf = gst_buffer_list_get (list_copy, 1);
	fail_unless (buf == buf2);
	ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 2);
	fail_unless_equals_int (gst_buffer_get_size (buf2), 5);
	fail_unless_equals_int (gst_buffer_n_memory (buf2), 2);

	gst_buffer_list_unref (list_copy);
	}

	GST_END_TEST;

	GST_START_TEST (test_copy_deep)
	{
	GstBufferList *list_copy;
	GstMapInfo info, sinfo;
	GstBuffer *buf1;
	GstBuffer *buf2;
	GstBuffer *buf_copy;

	/* add buffers to the list */
	buf1 = gst_buffer_new_allocate (NULL, 1, NULL);
	gst_buffer_list_add (list, buf1);

	buf2 = gst_buffer_new_allocate (NULL, 2, NULL);
	gst_buffer_list_add (list, buf2);

	/* make a copy */
	list_copy = gst_buffer_list_copy_deep (list);
	fail_unless (GST_MINI_OBJECT_REFCOUNT_VALUE (list) == 1);
	fail_unless (GST_MINI_OBJECT_REFCOUNT_VALUE (list_copy) == 1);
	fail_unless (list_copy != list);
	fail_unless_equals_int (gst_buffer_list_length (list_copy), 2);

	buf_copy = gst_buffer_list_get (list_copy, 0);
	/* each buffer in the list is copied and must point to different memory */
	fail_unless (buf_copy != buf1);
	ASSERT_BUFFER_REFCOUNT (buf1, "buf1", 1);
	fail_unless_equals_int (gst_buffer_get_size (buf1), 1);

	buf_copy = gst_buffer_list_get (list_copy, 1);
	fail_unless (buf_copy != buf2);
	ASSERT_BUFFER_REFCOUNT (buf2, "buf2", 1);
	fail_unless_equals_int (gst_buffer_get_size (buf2), 2);

	fail_unless (gst_buffer_map (buf2, &info, GST_MAP_READ));
	fail_unless (gst_buffer_map (buf_copy, &sinfo, GST_MAP_READ));

	/* NOTE that data is refcounted */
	fail_unless (info.size == sinfo.size);
	/* copy_deep() forces new GstMemory to be used */
	fail_unless (info.data != sinfo.data);

	gst_buffer_unmap (buf_copy, &sinfo);
	gst_buffer_unmap (buf2, &info);

	gst_buffer_list_unref (list_copy);
	}

	GST_END_TEST;

	typedef struct
	{
	GstBuffer *buf[2];
	guint iter;
	} ForeachData;

	static gboolean
	foreach_func1 (GstBuffer ** buffer, guint idx, ForeachData * data)
	{
	fail_unless (buffer != NULL);
	fail_unless (GST_IS_BUFFER (*buffer));
	fail_unless (*buffer == data->buf[idx]);

	data->iter++;

	return TRUE;
	}

	static gboolean
	foreach_func3 (GstBuffer ** buffer, guint idx, ForeachData * data)
	{
	fail_unless (idx == 0);
	fail_unless (buffer != NULL);
	fail_unless (GST_IS_BUFFER (*buffer));
	fail_unless (*buffer == data->buf[idx]);

	data->iter++;

	return FALSE;
	}

	static gboolean
	foreach_func4 (GstBuffer ** buffer, guint idx, ForeachData * data)
	{
	fail_unless (idx == 0);
	fail_unless (buffer != NULL);
	fail_unless (GST_IS_BUFFER (*buffer));
	fail_unless (*buffer == data->buf[data->iter]);

	/* remove first */
	if (*buffer == data->buf[0]) {
	gst_buffer_unref (*buffer);
	*buffer = NULL;
	}

	data->iter++;

	return TRUE;
	}

	static gboolean
	foreach_func5 (GstBuffer ** buffer, guint idx, ForeachData * data)
	{
	fail_unless (buffer != NULL);
	fail_unless (GST_IS_BUFFER (*buffer));

	data->iter++;

	return TRUE;
	}

	GST_START_TEST (test_foreach)
	{
	GstBuffer buf2, buf3;
	ForeachData data;

	/* add buffers to the list */
	data.buf[0] = gst_buffer_new_allocate (NULL, 1, NULL);
	gst_buffer_list_add (list, data.buf[0]);

	buf2 = gst_buffer_new_allocate (NULL, 2, NULL);
	buf3 = gst_buffer_new_allocate (NULL, 3, NULL);
	data.buf[1] = gst_buffer_append (buf2, buf3);
	gst_buffer_list_add (list, data.buf[1]);

	fail_unless (gst_buffer_list_get (list, 0) == data.buf[0]);
	fail_unless (gst_buffer_list_get (list, 1) == data.buf[1]);

	/* iterate everything */
	data.iter = 0;
	gst_buffer_list_foreach (list, (GstBufferListFunc) foreach_func1, &data);
	fail_unless (data.iter == 2);

	/* iterate only the first buffer */
	data.iter = 0;
	gst_buffer_list_foreach (list, (GstBufferListFunc) foreach_func3, &data);
	fail_unless (data.iter == 1);

	/* remove the first buffer */
	data.iter = 0;
	gst_buffer_list_foreach (list, (GstBufferListFunc) foreach_func4, &data);
	fail_unless (data.iter == 2);

	fail_unless (gst_buffer_list_get (list, 0) == data.buf[1]);
	fail_unless_equals_int (gst_buffer_list_length (list), 1);

	/* iterate everything, just one more buffer now */
	data.iter = 0;
	gst_buffer_list_foreach (list, (GstBufferListFunc) foreach_func5, &data);
	fail_unless (data.iter == 1);
	}

	GST_END_TEST;

	/* make sure everything is fine if we exceed the pre-allocated size */
	GST_START_TEST (test_expand_and_remove)
	{
	GArray *arr;
	GstBuffer *buf;
	guint i, idx, num, counter = 0;

	gst_buffer_list_unref (list);

	arr = g_array_new (FALSE, FALSE, sizeof (guint));

	list = gst_buffer_list_new_sized (1);

	for (i = 0; i < 250; ++i) {
	num = ++counter;
	buf = gst_buffer_new_allocate (NULL, num, NULL);
	gst_buffer_list_add (list, buf);
	g_array_append_val (arr, num);
	}

	for (i = 0; i < 250; ++i) {
	num = ++counter;
	buf = gst_buffer_new_allocate (NULL, num, NULL);
	idx = g_random_int_range (0, gst_buffer_list_length (list));
	gst_buffer_list_insert (list, idx, buf);
	g_array_insert_val (arr, idx, num);
	}

	/* make sure the list looks like it should */
	fail_unless_equals_int (arr->len, gst_buffer_list_length (list));
	for (i = 0; i < arr->len; ++i) {
	buf = gst_buffer_list_get (list, i);
	num = gst_buffer_get_size (buf);
	fail_unless_equals_int (num, g_array_index (arr, guint, i));
	}

	for (i = 0; i < 44; ++i) {
	num = g_random_int_range (1, 5);
	idx = g_random_int_range (0, gst_buffer_list_length (list) - num);
	gst_buffer_list_remove (list, idx, num);
	g_array_remove_range (arr, idx, num);
	}

	/* make sure the list still looks like it should */
	fail_unless_equals_int (arr->len, gst_buffer_list_length (list));
	for (i = 0; i < arr->len; ++i) {
	buf = gst_buffer_list_get (list, i);
	num = gst_buffer_get_size (buf);
	fail_unless_equals_int (num, g_array_index (arr, guint, i));
	}

	for (i = 0; i < 500; ++i) {
	num = ++counter;
	buf = gst_buffer_new_allocate (NULL, num, NULL);
	gst_buffer_list_add (list, buf);
	g_array_append_val (arr, num);
	}

	for (i = 0; i < 500; ++i) {
	num = ++counter;
	buf = gst_buffer_new_allocate (NULL, num, NULL);
	idx = g_random_int_range (0, gst_buffer_list_length (list));
	gst_buffer_list_insert (list, idx, buf);
	g_array_insert_val (arr, idx, num);
	}

	/* make sure the list still looks like it should */
	fail_unless_equals_int (arr->len, gst_buffer_list_length (list));
	for (i = 0; i < arr->len; ++i) {
	buf = gst_buffer_list_get (list, i);
	num = gst_buffer_get_size (buf);
	fail_unless_equals_int (num, g_array_index (arr, guint, i));
	}

	g_array_unref (arr);
	}

	GST_END_TEST;

	static Suite *
	gst_buffer_list_suite (void)
	{
	Suite *s = suite_create ("GstBufferList");
	TCase *tc_chain = tcase_create ("general");

	suite_add_tcase (s, tc_chain);
	tcase_add_checked_fixture (tc_chain, setup, cleanup);
	tcase_add_test (tc_chain, test_add_and_iterate);
	tcase_add_test (tc_chain, test_remove);
	tcase_add_test (tc_chain, test_make_writable);
	tcase_add_test (tc_chain, test_copy);
	tcase_add_test (tc_chain, test_copy_deep);
	tcase_add_test (tc_chain, test_foreach);
	tcase_add_test (tc_chain, test_expand_and_remove);

	return s;
	}

	GST_CHECK_MAIN (gst_buffer_list);