tests/check/elements/avisubtitle.c - imx-gst-plugins-good - Git at Google

 /* GStreamer
  *
  * unit test for avisubtitle
  *
  * Copyright (C) <2007> Thijs Vermeir <thijsvermeir@gmail.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.
  */
 /* Element-Checklist-Version: 5 */

 #include <unistd.h>

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

 GstPad *mysinkpad;
 GstPad *mysrcpad;

 guint8 avisub_utf_8_with_bom[] = {
   0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x00, 0x10,
   0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
   0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68,
   0x00, 0x00, 0x00, 0x04, 0x00, 0x8e, 0x00, 0x00,
   0x00, 0xef, 0xbb, 0xbf, 0x31, 0x0d, 0x0a, 0x30,
   0x30, 0x3a, 0x30, 0x30, 0x3a, 0x30, 0x30, 0x2c,
   0x31, 0x30, 0x30, 0x20, 0x2d, 0x2d, 0x3e, 0x20,
   0x30, 0x30, 0x3a, 0x30, 0x30, 0x3a, 0x30, 0x32,
   0x2c, 0x30, 0x30, 0x30, 0x0d, 0x0a, 0x3c, 0x62,
   0x3e, 0x41, 0x6e, 0x20, 0x55, 0x54, 0x46, 0x38,
   0x20, 0x53, 0x75, 0x62, 0x74, 0x69, 0x74, 0x6c,
   0x65, 0x20, 0x77, 0x69, 0x74, 0x68, 0x20, 0x42,
   0x4f, 0x4d, 0x3c, 0x2f, 0x62, 0x3e, 0x0d, 0x0a,
   0x0d, 0x0a, 0x32, 0x0d, 0x0a, 0x30, 0x30, 0x3a,
   0x30, 0x30, 0x3a, 0x30, 0x32, 0x2c, 0x31, 0x30,
   0x30, 0x20, 0x2d, 0x2d, 0x3e, 0x20, 0x30, 0x30,
   0x3a, 0x30, 0x30, 0x3a, 0x30, 0x34, 0x2c, 0x30,
   0x30, 0x30, 0x0d, 0x0a, 0x53, 0x6f, 0x6d, 0x65,
   0x74, 0x68, 0x69, 0x6e, 0x67, 0x20, 0x6e, 0x6f,
   0x6e, 0x41, 0x53, 0x43, 0x49, 0x49, 0x20, 0x2d,
   0x20, 0xc2, 0xb5, 0xc3, 0xb6, 0xc3, 0xa4, 0xc3,
   0xbc, 0xc3, 0x9f, 0x0d, 0x0a, 0x0d, 0x0a
 };

 static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
     GST_STATIC_CAPS ("application/x-subtitle")
     );

 static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
     GST_PAD_SRC,
     GST_PAD_ALWAYS,
     GST_STATIC_CAPS ("application/x-subtitle-avi")
     );

 static GstElement *
 setup_avisubtitle (void)
 {
   GstElement *avisubtitle;
   GstCaps *srccaps;

   GST_DEBUG ("setup_avisubtitle");
   avisubtitle = gst_check_setup_element ("avisubtitle");
   mysinkpad = gst_check_setup_sink_pad (avisubtitle, &sink_template);
   mysrcpad = gst_check_setup_src_pad (avisubtitle, &src_template);
   gst_pad_set_active (mysinkpad, TRUE);
   gst_pad_set_active (mysrcpad, TRUE);
   srccaps = gst_caps_new_empty_simple ("application/x-subtitle-avi");
   gst_check_setup_events (mysrcpad, avisubtitle, srccaps, GST_FORMAT_TIME);
   gst_caps_unref (srccaps);
   return avisubtitle;
 }

 static void
 cleanup_avisubtitle (GstElement * avisubtitle)
 {
   gst_pad_set_active (mysinkpad, FALSE);
   gst_pad_set_active (mysrcpad, FALSE);
   gst_check_teardown_sink_pad (avisubtitle);
   gst_check_teardown_src_pad (avisubtitle);
   gst_check_teardown_element (avisubtitle);
 }

 static void
 check_wrong_buffer (guint8 * data, guint length)
 {
   GstBuffer *buffer = gst_buffer_new_allocate (NULL, length, 0);
   GstElement *avisubtitle = setup_avisubtitle ();

   gst_buffer_fill (buffer, 0, data, length);
   fail_unless (gst_element_set_state (avisubtitle,
           GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
       "could not set to playing");
   gst_buffer_ref (buffer);
   ASSERT_BUFFER_REFCOUNT (buffer, "inbuffer", 2);
   /* push the broken buffer */
   fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_ERROR,
       "accepted a broken buffer");
   /* check if we have unreffed this buffer on failure */
   ASSERT_BUFFER_REFCOUNT (buffer, "inbuffer", 1);
   gst_buffer_unref (buffer);
   fail_unless (gst_element_set_state (avisubtitle,
           GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS, "could not set to null");
   cleanup_avisubtitle (avisubtitle);
 }

 static void
 check_correct_buffer (guint8 * src_data, guint src_size, guint8 * dst_data,
     guint dst_size)
 {
   GstBuffer *buffer = gst_buffer_new_allocate (NULL, src_size, 0);
   GstBuffer *newBuffer;
   GstElement *avisubtitle = setup_avisubtitle ();
   GstEvent *event;

   fail_unless (g_list_length (buffers) == 0, "Buffers list needs to be empty");
   gst_buffer_fill (buffer, 0, src_data, src_size);
   fail_unless (gst_element_set_state (avisubtitle,
           GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
       "could not set to playing");
   ASSERT_BUFFER_REFCOUNT (buffer, "inbuffer", 1);
   event = gst_event_new_seek (1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
       GST_SEEK_TYPE_SET, 2 * GST_SECOND, GST_SEEK_TYPE_SET, 5 * GST_SECOND);
   fail_unless (gst_element_send_event (avisubtitle, event) == FALSE,
       "Seeking is not possible when there is no buffer yet");
   fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK,
       "not accepted a correct buffer");
   /* we gave away our reference to the buffer, don't assume anything */
   buffer = NULL;
   /* a new buffer is created in the list */
   fail_unless (g_list_length (buffers) == 1,
       "No new buffer in the buffers list");
   event = gst_event_new_seek (1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
       GST_SEEK_TYPE_SET, 2 * GST_SECOND, GST_SEEK_TYPE_SET, 5 * GST_SECOND);
   fail_unless (gst_element_send_event (avisubtitle, event) == TRUE,
       "seeking should be working now");
   fail_unless (g_list_length (buffers) == 2,
       "After seeking we need another buffer in the buffers");
   newBuffer = GST_BUFFER (buffers->data);
   buffers = g_list_remove (buffers, newBuffer);
   fail_unless (g_list_length (buffers) == 1, "Buffers list needs to be empty");
   fail_unless (gst_buffer_get_size (newBuffer) == dst_size,
       "size of the new buffer is wrong ( %d != %d)",
       gst_buffer_get_size (newBuffer), dst_size);
   fail_unless (gst_buffer_memcmp (newBuffer, 0, dst_data, dst_size) == 0,
       "data of the buffer is not correct");
   gst_buffer_unref (newBuffer);
   /* free the buffer from seeking */
   gst_buffer_unref (GST_BUFFER (buffers->data));
   buffers = g_list_remove (buffers, buffers->data);
   fail_unless (gst_element_set_state (avisubtitle,
           GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS, "could not set to null");
   cleanup_avisubtitle (avisubtitle);
 }


 GST_START_TEST (test_avisubtitle_negative)
 {
   guint8 wrong_magic[] =
       { 0x47, 0x41, 0x41, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00
   };
   guint8 wrong_fixed_word_2[] = {
     0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x01, 0x10,
     0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
     0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68
   };
   guint8 wrong_length_after_name[] = {
     0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x00, 0x10,
     0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
     0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68
   };
   guint8 wrong_fixed_word_4[] = {
     0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x00, 0x10,
     0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
     0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68,
     0x00, 0x00, 0x00, 0x04, 0x01, 0x8e, 0x00, 0x00,
     0x00, 0xef, 0xbb, 0xbf, 0x31, 0x0d, 0x0a, 0x30
   };
   guint8 wrong_total_length[] = {
     0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x00, 0x10,
     0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
     0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68,
     0x00, 0x00, 0x00, 0x04, 0x00, 0x8e, 0x00, 0x00,
     0x00, 0xef, 0xbb, 0xbf, 0x31, 0x0d, 0x0a, 0x30
   };
   /* size of the buffer must be larger than 11 */
   check_wrong_buffer (avisub_utf_8_with_bom, 11);
   /* buffer must start with 'GAB2\0' */
   check_wrong_buffer (wrong_magic, 14);
   /* next word must be 2 */
   check_wrong_buffer (wrong_fixed_word_2, 24);
   /* length must be larger than the length of the name + 17 */
   check_wrong_buffer (wrong_length_after_name, 24);
   /* next word must be 4 */
   check_wrong_buffer (wrong_fixed_word_4, 36);
   /* check wrong total length */
   check_wrong_buffer (wrong_total_length, 36);
 }

 GST_END_TEST;

 GST_START_TEST (test_avisubtitle_positive)
 {
   guint8 avisub_utf_8_without_bom[] = {
     0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x00, 0x10,
     0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
     0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68,
     0x00, 0x00, 0x00, 0x04, 0x00, 0x8b, 0x00, 0x00,
     0x00, 0x31, 0x0d, 0x0a, 0x30,
     0x30, 0x3a, 0x30, 0x30, 0x3a, 0x30, 0x30, 0x2c,
     0x31, 0x30, 0x30, 0x20, 0x2d, 0x2d, 0x3e, 0x20,
     0x30, 0x30, 0x3a, 0x30, 0x30, 0x3a, 0x30, 0x32,
     0x2c, 0x30, 0x30, 0x30, 0x0d, 0x0a, 0x3c, 0x62,
     0x3e, 0x41, 0x6e, 0x20, 0x55, 0x54, 0x46, 0x38,
     0x20, 0x53, 0x75, 0x62, 0x74, 0x69, 0x74, 0x6c,
     0x65, 0x20, 0x77, 0x69, 0x74, 0x68, 0x20, 0x42,
     0x4f, 0x4d, 0x3c, 0x2f, 0x62, 0x3e, 0x0d, 0x0a,
     0x0d, 0x0a, 0x32, 0x0d, 0x0a, 0x30, 0x30, 0x3a,
     0x30, 0x30, 0x3a, 0x30, 0x32, 0x2c, 0x31, 0x30,
     0x30, 0x20, 0x2d, 0x2d, 0x3e, 0x20, 0x30, 0x30,
     0x3a, 0x30, 0x30, 0x3a, 0x30, 0x34, 0x2c, 0x30,
     0x30, 0x30, 0x0d, 0x0a, 0x53, 0x6f, 0x6d, 0x65,
     0x74, 0x68, 0x69, 0x6e, 0x67, 0x20, 0x6e, 0x6f,
     0x6e, 0x41, 0x53, 0x43, 0x49, 0x49, 0x20, 0x2d,
     0x20, 0xc2, 0xb5, 0xc3, 0xb6, 0xc3, 0xa4, 0xc3,
     0xbc, 0xc3, 0x9f, 0x0d, 0x0a, 0x0d, 0x0a
   };
   check_correct_buffer (avisub_utf_8_with_bom, 175, avisub_utf_8_with_bom + 36,
       139);
   check_correct_buffer (avisub_utf_8_without_bom, 172,
       avisub_utf_8_without_bom + 33, 139);
 }

 GST_END_TEST;

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

   suite_add_tcase (s, tc_chain);
   tcase_add_test (tc_chain, test_avisubtitle_negative);
   tcase_add_test (tc_chain, test_avisubtitle_positive);

   return s;
 }

 GST_CHECK_MAIN (avisubtitle);
	/* GStreamer
	*
	* unit test for avisubtitle
	*
	* Copyright (C) <2007> Thijs Vermeir <thijsvermeir@gmail.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.
	*/
	/* Element-Checklist-Version: 5 */

	#include <unistd.h>

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

	GstPad *mysinkpad;
	GstPad *mysrcpad;

	guint8 avisub_utf_8_with_bom[] = {
	0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x00, 0x10,
	0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
	0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68,
	0x00, 0x00, 0x00, 0x04, 0x00, 0x8e, 0x00, 0x00,
	0x00, 0xef, 0xbb, 0xbf, 0x31, 0x0d, 0x0a, 0x30,
	0x30, 0x3a, 0x30, 0x30, 0x3a, 0x30, 0x30, 0x2c,
	0x31, 0x30, 0x30, 0x20, 0x2d, 0x2d, 0x3e, 0x20,
	0x30, 0x30, 0x3a, 0x30, 0x30, 0x3a, 0x30, 0x32,
	0x2c, 0x30, 0x30, 0x30, 0x0d, 0x0a, 0x3c, 0x62,
	0x3e, 0x41, 0x6e, 0x20, 0x55, 0x54, 0x46, 0x38,
	0x20, 0x53, 0x75, 0x62, 0x74, 0x69, 0x74, 0x6c,
	0x65, 0x20, 0x77, 0x69, 0x74, 0x68, 0x20, 0x42,
	0x4f, 0x4d, 0x3c, 0x2f, 0x62, 0x3e, 0x0d, 0x0a,
	0x0d, 0x0a, 0x32, 0x0d, 0x0a, 0x30, 0x30, 0x3a,
	0x30, 0x30, 0x3a, 0x30, 0x32, 0x2c, 0x31, 0x30,
	0x30, 0x20, 0x2d, 0x2d, 0x3e, 0x20, 0x30, 0x30,
	0x3a, 0x30, 0x30, 0x3a, 0x30, 0x34, 0x2c, 0x30,
	0x30, 0x30, 0x0d, 0x0a, 0x53, 0x6f, 0x6d, 0x65,
	0x74, 0x68, 0x69, 0x6e, 0x67, 0x20, 0x6e, 0x6f,
	0x6e, 0x41, 0x53, 0x43, 0x49, 0x49, 0x20, 0x2d,
	0x20, 0xc2, 0xb5, 0xc3, 0xb6, 0xc3, 0xa4, 0xc3,
	0xbc, 0xc3, 0x9f, 0x0d, 0x0a, 0x0d, 0x0a
	};

	static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
	GST_PAD_SINK,
	GST_PAD_ALWAYS,
	GST_STATIC_CAPS ("application/x-subtitle")
	);

	static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
	GST_PAD_SRC,
	GST_PAD_ALWAYS,
	GST_STATIC_CAPS ("application/x-subtitle-avi")
	);

	static GstElement *
	setup_avisubtitle (void)
	{
	GstElement *avisubtitle;
	GstCaps *srccaps;

	GST_DEBUG ("setup_avisubtitle");
	avisubtitle = gst_check_setup_element ("avisubtitle");
	mysinkpad = gst_check_setup_sink_pad (avisubtitle, &sink_template);
	mysrcpad = gst_check_setup_src_pad (avisubtitle, &src_template);
	gst_pad_set_active (mysinkpad, TRUE);
	gst_pad_set_active (mysrcpad, TRUE);
	srccaps = gst_caps_new_empty_simple ("application/x-subtitle-avi");
	gst_check_setup_events (mysrcpad, avisubtitle, srccaps, GST_FORMAT_TIME);
	gst_caps_unref (srccaps);
	return avisubtitle;
	}

	static void
	cleanup_avisubtitle (GstElement * avisubtitle)
	{
	gst_pad_set_active (mysinkpad, FALSE);
	gst_pad_set_active (mysrcpad, FALSE);
	gst_check_teardown_sink_pad (avisubtitle);
	gst_check_teardown_src_pad (avisubtitle);
	gst_check_teardown_element (avisubtitle);
	}

	static void
	check_wrong_buffer (guint8 * data, guint length)
	{
	GstBuffer *buffer = gst_buffer_new_allocate (NULL, length, 0);
	GstElement *avisubtitle = setup_avisubtitle ();

	gst_buffer_fill (buffer, 0, data, length);
	fail_unless (gst_element_set_state (avisubtitle,
	GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
	"could not set to playing");
	gst_buffer_ref (buffer);
	ASSERT_BUFFER_REFCOUNT (buffer, "inbuffer", 2);
	/* push the broken buffer */
	fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_ERROR,
	"accepted a broken buffer");
	/* check if we have unreffed this buffer on failure */
	ASSERT_BUFFER_REFCOUNT (buffer, "inbuffer", 1);
	gst_buffer_unref (buffer);
	fail_unless (gst_element_set_state (avisubtitle,
	GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS, "could not set to null");
	cleanup_avisubtitle (avisubtitle);
	}

	static void
	check_correct_buffer (guint8 * src_data, guint src_size, guint8 * dst_data,
	guint dst_size)
	{
	GstBuffer *buffer = gst_buffer_new_allocate (NULL, src_size, 0);
	GstBuffer *newBuffer;
	GstElement *avisubtitle = setup_avisubtitle ();
	GstEvent *event;

	fail_unless (g_list_length (buffers) == 0, "Buffers list needs to be empty");
	gst_buffer_fill (buffer, 0, src_data, src_size);
	fail_unless (gst_element_set_state (avisubtitle,
	GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
	"could not set to playing");
	ASSERT_BUFFER_REFCOUNT (buffer, "inbuffer", 1);
	event = gst_event_new_seek (1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
	GST_SEEK_TYPE_SET, 2 * GST_SECOND, GST_SEEK_TYPE_SET, 5 * GST_SECOND);
	fail_unless (gst_element_send_event (avisubtitle, event) == FALSE,
	"Seeking is not possible when there is no buffer yet");
	fail_unless (gst_pad_push (mysrcpad, buffer) == GST_FLOW_OK,
	"not accepted a correct buffer");
	/* we gave away our reference to the buffer, don't assume anything */
	buffer = NULL;
	/* a new buffer is created in the list */
	fail_unless (g_list_length (buffers) == 1,
	"No new buffer in the buffers list");
	event = gst_event_new_seek (1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
	GST_SEEK_TYPE_SET, 2 * GST_SECOND, GST_SEEK_TYPE_SET, 5 * GST_SECOND);
	fail_unless (gst_element_send_event (avisubtitle, event) == TRUE,
	"seeking should be working now");
	fail_unless (g_list_length (buffers) == 2,
	"After seeking we need another buffer in the buffers");
	newBuffer = GST_BUFFER (buffers->data);
	buffers = g_list_remove (buffers, newBuffer);
	fail_unless (g_list_length (buffers) == 1, "Buffers list needs to be empty");
	fail_unless (gst_buffer_get_size (newBuffer) == dst_size,
	"size of the new buffer is wrong ( %d != %d)",
	gst_buffer_get_size (newBuffer), dst_size);
	fail_unless (gst_buffer_memcmp (newBuffer, 0, dst_data, dst_size) == 0,
	"data of the buffer is not correct");
	gst_buffer_unref (newBuffer);
	/* free the buffer from seeking */
	gst_buffer_unref (GST_BUFFER (buffers->data));
	buffers = g_list_remove (buffers, buffers->data);
	fail_unless (gst_element_set_state (avisubtitle,
	GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS, "could not set to null");
	cleanup_avisubtitle (avisubtitle);
	}


	GST_START_TEST (test_avisubtitle_negative)
	{
	guint8 wrong_magic[] =
	{ 0x47, 0x41, 0x41, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00
	};
	guint8 wrong_fixed_word_2[] = {
	0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x01, 0x10,
	0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
	0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68
	};
	guint8 wrong_length_after_name[] = {
	0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x00, 0x10,
	0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
	0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68
	};
	guint8 wrong_fixed_word_4[] = {
	0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x00, 0x10,
	0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
	0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68,
	0x00, 0x00, 0x00, 0x04, 0x01, 0x8e, 0x00, 0x00,
	0x00, 0xef, 0xbb, 0xbf, 0x31, 0x0d, 0x0a, 0x30
	};
	guint8 wrong_total_length[] = {
	0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x00, 0x10,
	0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
	0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68,
	0x00, 0x00, 0x00, 0x04, 0x00, 0x8e, 0x00, 0x00,
	0x00, 0xef, 0xbb, 0xbf, 0x31, 0x0d, 0x0a, 0x30
	};
	/* size of the buffer must be larger than 11 */
	check_wrong_buffer (avisub_utf_8_with_bom, 11);
	/* buffer must start with 'GAB2\0' */
	check_wrong_buffer (wrong_magic, 14);
	/* next word must be 2 */
	check_wrong_buffer (wrong_fixed_word_2, 24);
	/* length must be larger than the length of the name + 17 */
	check_wrong_buffer (wrong_length_after_name, 24);
	/* next word must be 4 */
	check_wrong_buffer (wrong_fixed_word_4, 36);
	/* check wrong total length */
	check_wrong_buffer (wrong_total_length, 36);
	}

	GST_END_TEST;

	GST_START_TEST (test_avisubtitle_positive)
	{
	guint8 avisub_utf_8_without_bom[] = {
	0x47, 0x41, 0x42, 0x32, 0x00, 0x02, 0x00, 0x10,
	0x00, 0x00, 0x00, 0x45, 0x00, 0x6e, 0x00, 0x67,
	0x00, 0x6c, 0x00, 0x69, 0x00, 0x73, 0x00, 0x68,
	0x00, 0x00, 0x00, 0x04, 0x00, 0x8b, 0x00, 0x00,
	0x00, 0x31, 0x0d, 0x0a, 0x30,
	0x30, 0x3a, 0x30, 0x30, 0x3a, 0x30, 0x30, 0x2c,
	0x31, 0x30, 0x30, 0x20, 0x2d, 0x2d, 0x3e, 0x20,
	0x30, 0x30, 0x3a, 0x30, 0x30, 0x3a, 0x30, 0x32,
	0x2c, 0x30, 0x30, 0x30, 0x0d, 0x0a, 0x3c, 0x62,
	0x3e, 0x41, 0x6e, 0x20, 0x55, 0x54, 0x46, 0x38,
	0x20, 0x53, 0x75, 0x62, 0x74, 0x69, 0x74, 0x6c,
	0x65, 0x20, 0x77, 0x69, 0x74, 0x68, 0x20, 0x42,
	0x4f, 0x4d, 0x3c, 0x2f, 0x62, 0x3e, 0x0d, 0x0a,
	0x0d, 0x0a, 0x32, 0x0d, 0x0a, 0x30, 0x30, 0x3a,
	0x30, 0x30, 0x3a, 0x30, 0x32, 0x2c, 0x31, 0x30,
	0x30, 0x20, 0x2d, 0x2d, 0x3e, 0x20, 0x30, 0x30,
	0x3a, 0x30, 0x30, 0x3a, 0x30, 0x34, 0x2c, 0x30,
	0x30, 0x30, 0x0d, 0x0a, 0x53, 0x6f, 0x6d, 0x65,
	0x74, 0x68, 0x69, 0x6e, 0x67, 0x20, 0x6e, 0x6f,
	0x6e, 0x41, 0x53, 0x43, 0x49, 0x49, 0x20, 0x2d,
	0x20, 0xc2, 0xb5, 0xc3, 0xb6, 0xc3, 0xa4, 0xc3,
	0xbc, 0xc3, 0x9f, 0x0d, 0x0a, 0x0d, 0x0a
	};
	check_correct_buffer (avisub_utf_8_with_bom, 175, avisub_utf_8_with_bom + 36,
	139);
	check_correct_buffer (avisub_utf_8_without_bom, 172,
	avisub_utf_8_without_bom + 33, 139);
	}

	GST_END_TEST;

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

	suite_add_tcase (s, tc_chain);
	tcase_add_test (tc_chain, test_avisubtitle_negative);
	tcase_add_test (tc_chain, test_avisubtitle_positive);

	return s;
	}

	GST_CHECK_MAIN (avisubtitle);