tests/check/elements/audiodynamic.c - mtk-gst-plugins-good-debian - Git at Google

 /* GStreamer
  *
  * unit test for audiodynamic
  *
  * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
  *
  * Greatly based on the audiopanorama unit test
  * Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>
  *
  * 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 <unistd.h>

 #include <gst/audio/audio.h>
 #include <gst/base/gstbasetransform.h>
 #include <gst/check/gstcheck.h>

 gboolean have_eos = FALSE;

 /* For ease of programming we use globals to keep refs for our floating
  * src and sink pads we create; otherwise we always have to do get_pad,
  * get_peer, and then remove references in every test function */
 GstPad *mysrcpad, *mysinkpad;


 #define DYNAMIC_CAPS_STRING    \
     "audio/x-raw, "                     \
     "channels = (int) 1, "              \
     "rate = (int) 44100, "              \
     "layout = (string) interleaved, "   \
     "format = (string) " GST_AUDIO_NE(S16)

 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
     GST_STATIC_CAPS ("audio/x-raw, "
         "channels = (int) 1, "
         "rate = (int) [ 1,  MAX ], "
         "layout = (string) interleaved, "
         "format = (string)" GST_AUDIO_NE (S16)));
 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
     GST_PAD_SRC,
     GST_PAD_ALWAYS,
     GST_STATIC_CAPS ("audio/x-raw, "
         "channels = (int) 1, "
         "rate = (int) [ 1,  MAX ], "
         "layout = (string) interleaved, "
         "format = (string) " GST_AUDIO_NE (S16)));

 static GstElement *
 setup_dynamic (void)
 {
   GstElement *dynamic;

   GST_DEBUG ("setup_dynamic");
   dynamic = gst_check_setup_element ("audiodynamic");
   mysrcpad = gst_check_setup_src_pad (dynamic, &srctemplate);
   mysinkpad = gst_check_setup_sink_pad (dynamic, &sinktemplate);
   gst_pad_set_active (mysrcpad, TRUE);
   gst_pad_set_active (mysinkpad, TRUE);

   return dynamic;
 }

 static void
 cleanup_dynamic (GstElement * dynamic)
 {
   GST_DEBUG ("cleanup_dynamic");

   g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);
   g_list_free (buffers);
   buffers = NULL;

   gst_pad_set_active (mysrcpad, FALSE);
   gst_pad_set_active (mysinkpad, FALSE);
   gst_check_teardown_src_pad (dynamic);
   gst_check_teardown_sink_pad (dynamic);
   gst_check_teardown_element (dynamic);
 }

 GST_START_TEST (test_passthrough)
 {
   GstElement *dynamic;
   GstBuffer *inbuffer, *outbuffer;
   GstCaps *caps;
   gint16 in[6] = { 24576, -16384, 256, -128, 0, -24576 };
   gint16 res[6];

   dynamic = setup_dynamic ();
   fail_unless (gst_element_set_state (dynamic,
           GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
       "could not set to playing");

   inbuffer =
       gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY, in, 12, 0, 12,
       NULL, NULL);
   fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 12) == 0);
   caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
   gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
   gst_caps_unref (caps);
   ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

   /* pushing gives away my reference ... */
   fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
   /* ... but it ends up being collected on the global buffer list */
   fail_unless_equals_int (g_list_length (buffers), 1);
   fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

   fail_unless (gst_buffer_extract (outbuffer, 0, res, 12) == 12);
   GST_INFO
       ("expected %+5d %+5d %+5d %+5d %+5d %+5d real %+5d %+5d %+5d %+5d %+5d %+5d",
       in[0], in[1], in[2], in[3], in[4], in[5], res[0], res[1], res[2], res[3],
       res[4], res[5]);
   fail_unless (gst_buffer_memcmp (outbuffer, 0, in, 12) == 0);

   /* cleanup */
   cleanup_dynamic (dynamic);
 }

 GST_END_TEST;

 GST_START_TEST (test_compress_hard_50_50)
 {
   GstElement *dynamic;
   GstBuffer *inbuffer, *outbuffer;
   GstCaps *caps;
   gint16 in[8] = { -30000, 24576, -16384, 256, -128, 0, -24576, 30000 };
   gint16 res[8];

   dynamic = setup_dynamic ();
   g_object_set (G_OBJECT (dynamic), "mode", 0, NULL);
   g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
   g_object_set (G_OBJECT (dynamic), "ratio", 0.5, NULL);
   g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
   fail_unless (gst_element_set_state (dynamic,
           GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
       "could not set to playing");

   inbuffer = gst_buffer_new_and_alloc (16);
   gst_buffer_fill (inbuffer, 0, in, 16);
   fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
   caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
   gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
   gst_caps_unref (caps);
   ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

   /* pushing gives away my reference ... */
   fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
   /* ... and puts a new buffer on the global list */
   fail_unless_equals_int (g_list_length (buffers), 1);
   fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

   fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

   fail_unless (res[0] > in[0]);
   fail_unless (res[1] < in[1]);
   fail_unless (res[2] == in[2]);
   fail_unless (res[3] == in[3]);
   fail_unless (res[4] == in[4]);
   fail_unless (res[5] == in[5]);
   fail_unless (res[6] > in[6]);
   fail_unless (res[7] < in[7]);

   /* cleanup */
   cleanup_dynamic (dynamic);
 }

 GST_END_TEST;

 GST_START_TEST (test_compress_soft_50_50)
 {
   GstElement *dynamic;
   GstBuffer *inbuffer, *outbuffer;
   GstCaps *caps;
   gint16 in[8] = { -30000, 24576, -16384, 256, -128, 0, -24576, 30000 };
   gint16 res[8];

   dynamic = setup_dynamic ();
   g_object_set (G_OBJECT (dynamic), "mode", 0, NULL);
   g_object_set (G_OBJECT (dynamic), "characteristics", 1, NULL);
   g_object_set (G_OBJECT (dynamic), "ratio", 0.5, NULL);
   g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
   fail_unless (gst_element_set_state (dynamic,
           GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
       "could not set to playing");

   inbuffer = gst_buffer_new_and_alloc (16);
   gst_buffer_fill (inbuffer, 0, in, 16);
   fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
   caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
   gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
   gst_caps_unref (caps);
   ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

   /* pushing gives away my reference ... */
   fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
   /* ... and puts a new buffer on the global list */
   fail_unless_equals_int (g_list_length (buffers), 1);
   fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

   fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

   fail_unless (res[0] > in[0]);
   fail_unless (res[1] < in[1]);
   fail_unless (res[2] == in[2]);
   fail_unless (res[3] == in[3]);
   fail_unless (res[4] == in[4]);
   fail_unless (res[5] == in[5]);
   fail_unless (res[6] > in[6]);
   fail_unless (res[7] < in[7]);

   /* cleanup */
   cleanup_dynamic (dynamic);
 }

 GST_END_TEST;

 GST_START_TEST (test_compress_hard_100_50)
 {
   GstElement *dynamic;
   GstBuffer *inbuffer, *outbuffer;
   GstCaps *caps;
   gint16 in[8] = { -30000, 24576, -16384, 256, -128, 0, -24576, 30000 };
   gint16 res[8];

   dynamic = setup_dynamic ();
   g_object_set (G_OBJECT (dynamic), "mode", 0, NULL);
   g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
   g_object_set (G_OBJECT (dynamic), "ratio", 0.5, NULL);
   g_object_set (G_OBJECT (dynamic), "threshold", 1.0, NULL);
   fail_unless (gst_element_set_state (dynamic,
           GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
       "could not set to playing");

   inbuffer = gst_buffer_new_and_alloc (16);
   gst_buffer_fill (inbuffer, 0, in, 16);
   fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
   caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
   gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
   gst_caps_unref (caps);
   ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

   /* pushing gives away my reference ... */
   fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
   /* ... and puts a new buffer on the global list */
   fail_unless_equals_int (g_list_length (buffers), 1);
   fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

   fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

   fail_unless (res[0] == in[0]);
   fail_unless (res[1] == in[1]);
   fail_unless (res[2] == in[2]);
   fail_unless (res[3] == in[3]);
   fail_unless (res[4] == in[4]);
   fail_unless (res[5] == in[5]);
   fail_unless (res[6] == in[6]);
   fail_unless (res[7] == in[7]);

   /* cleanup */
   cleanup_dynamic (dynamic);
 }

 GST_END_TEST;


 GST_START_TEST (test_expand_hard_50_200)
 {
   GstElement *dynamic;
   GstBuffer *inbuffer, *outbuffer;
   GstCaps *caps;
   gint16 in[8] = { -30000, 24576, -16383, 256, -128, 0, -24576, 30000 };
   gint16 res[8];

   dynamic = setup_dynamic ();
   g_object_set (G_OBJECT (dynamic), "mode", 1, NULL);
   g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
   g_object_set (G_OBJECT (dynamic), "ratio", 2.0, NULL);
   g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
   fail_unless (gst_element_set_state (dynamic,
           GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
       "could not set to playing");

   inbuffer = gst_buffer_new_and_alloc (16);
   gst_buffer_fill (inbuffer, 0, in, 16);
   fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
   caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
   gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
   gst_caps_unref (caps);
   ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

   /* pushing gives away my reference ... */
   fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
   /* ... and puts a new buffer on the global list */
   fail_unless_equals_int (g_list_length (buffers), 1);
   fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

   fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

   fail_unless (res[0] == in[0]);
   fail_unless (res[1] == in[1]);
   fail_unless (res[2] > in[2]);
   fail_unless (res[3] < in[3]);
   fail_unless (res[4] > in[4]);
   fail_unless (res[5] == in[5]);
   fail_unless (res[6] == in[6]);
   fail_unless (res[7] == in[7]);

   /* cleanup */
   cleanup_dynamic (dynamic);
 }

 GST_END_TEST;

 GST_START_TEST (test_expand_soft_50_200)
 {
   GstElement *dynamic;
   GstBuffer *inbuffer, *outbuffer;
   GstCaps *caps;
   gint16 in[8] = { -30000, 24576, -16383, 256, -128, 0, -24576, 30000 };
   gint16 res[8];

   dynamic = setup_dynamic ();
   g_object_set (G_OBJECT (dynamic), "mode", 1, NULL);
   g_object_set (G_OBJECT (dynamic), "characteristics", 1, NULL);
   g_object_set (G_OBJECT (dynamic), "ratio", 2.0, NULL);
   g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
   fail_unless (gst_element_set_state (dynamic,
           GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
       "could not set to playing");

   inbuffer = gst_buffer_new_and_alloc (16);
   gst_buffer_fill (inbuffer, 0, in, 16);
   fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
   caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
   gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
   gst_caps_unref (caps);
   ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

   /* pushing gives away my reference ... */
   fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
   /* ... and puts a new buffer on the global list */
   fail_unless_equals_int (g_list_length (buffers), 1);
   fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

   fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

   fail_unless (res[0] == in[0]);
   fail_unless (res[1] == in[1]);
   fail_unless (res[2] > in[2]);
   fail_unless (res[3] < in[3]);
   fail_unless (res[4] > in[4]);
   fail_unless (res[5] == in[5]);
   fail_unless (res[6] == in[6]);
   fail_unless (res[7] == in[7]);

   /* cleanup */
   cleanup_dynamic (dynamic);
 }

 GST_END_TEST;

 GST_START_TEST (test_expand_hard_0_200)
 {
   GstElement *dynamic;
   GstBuffer *inbuffer, *outbuffer;
   GstCaps *caps;
   gint16 in[8] = { -30000, 24576, -16383, 256, -128, 0, -24576, 30000 };
   gint16 res[8];

   dynamic = setup_dynamic ();
   g_object_set (G_OBJECT (dynamic), "mode", 1, NULL);
   g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
   g_object_set (G_OBJECT (dynamic), "ratio", 2.0, NULL);
   g_object_set (G_OBJECT (dynamic), "threshold", 0.0, NULL);
   fail_unless (gst_element_set_state (dynamic,
           GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
       "could not set to playing");

   inbuffer = gst_buffer_new_and_alloc (16);
   gst_buffer_fill (inbuffer, 0, in, 16);
   fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
   caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
   gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
   gst_caps_unref (caps);
   ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

   /* pushing gives away my reference ... */
   fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
   /* ... and puts a new buffer on the global list */
   fail_unless_equals_int (g_list_length (buffers), 1);
   fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

   fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

   fail_unless (res[0] == in[0]);
   fail_unless (res[1] == in[1]);
   fail_unless (res[2] == in[2]);
   fail_unless (res[3] == in[3]);
   fail_unless (res[4] == in[4]);
   fail_unless (res[5] == in[5]);
   fail_unless (res[6] == in[6]);
   fail_unless (res[7] == in[7]);

   /* cleanup */
   cleanup_dynamic (dynamic);
 }

 GST_END_TEST;

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

   suite_add_tcase (s, tc_chain);
   tcase_add_test (tc_chain, test_passthrough);
   tcase_add_test (tc_chain, test_compress_hard_50_50);
   tcase_add_test (tc_chain, test_compress_soft_50_50);
   tcase_add_test (tc_chain, test_compress_hard_100_50);
   tcase_add_test (tc_chain, test_expand_hard_50_200);
   tcase_add_test (tc_chain, test_expand_soft_50_200);
   tcase_add_test (tc_chain, test_expand_hard_0_200);
   return s;
 }

 GST_CHECK_MAIN (dynamic);
	/* GStreamer
	*
	* unit test for audiodynamic
	*
	* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
	*
	* Greatly based on the audiopanorama unit test
	* Copyright (C) 2006 Stefan Kost <ensonic@users.sf.net>
	*
	* 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 <unistd.h>

	#include <gst/audio/audio.h>
	#include <gst/base/gstbasetransform.h>
	#include <gst/check/gstcheck.h>

	gboolean have_eos = FALSE;

	/* For ease of programming we use globals to keep refs for our floating
	* src and sink pads we create; otherwise we always have to do get_pad,
	* get_peer, and then remove references in every test function */
	GstPad mysrcpad, mysinkpad;


	#define DYNAMIC_CAPS_STRING \
	"audio/x-raw, " \
	"channels = (int) 1, " \
	"rate = (int) 44100, " \
	"layout = (string) interleaved, " \
	"format = (string) " GST_AUDIO_NE(S16)

	static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
	GST_PAD_SINK,
	GST_PAD_ALWAYS,
	GST_STATIC_CAPS ("audio/x-raw, "
	"channels = (int) 1, "
	"rate = (int) [ 1, MAX ], "
	"layout = (string) interleaved, "
	"format = (string)" GST_AUDIO_NE (S16)));
	static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
	GST_PAD_SRC,
	GST_PAD_ALWAYS,
	GST_STATIC_CAPS ("audio/x-raw, "
	"channels = (int) 1, "
	"rate = (int) [ 1, MAX ], "
	"layout = (string) interleaved, "
	"format = (string) " GST_AUDIO_NE (S16)));

	static GstElement *
	setup_dynamic (void)
	{
	GstElement *dynamic;

	GST_DEBUG ("setup_dynamic");
	dynamic = gst_check_setup_element ("audiodynamic");
	mysrcpad = gst_check_setup_src_pad (dynamic, &srctemplate);
	mysinkpad = gst_check_setup_sink_pad (dynamic, &sinktemplate);
	gst_pad_set_active (mysrcpad, TRUE);
	gst_pad_set_active (mysinkpad, TRUE);

	return dynamic;
	}

	static void
	cleanup_dynamic (GstElement * dynamic)
	{
	GST_DEBUG ("cleanup_dynamic");

	g_list_foreach (buffers, (GFunc) gst_mini_object_unref, NULL);
	g_list_free (buffers);
	buffers = NULL;

	gst_pad_set_active (mysrcpad, FALSE);
	gst_pad_set_active (mysinkpad, FALSE);
	gst_check_teardown_src_pad (dynamic);
	gst_check_teardown_sink_pad (dynamic);
	gst_check_teardown_element (dynamic);
	}

	GST_START_TEST (test_passthrough)
	{
	GstElement *dynamic;
	GstBuffer inbuffer, outbuffer;
	GstCaps *caps;
	gint16 in[6] = { 24576, -16384, 256, -128, 0, -24576 };
	gint16 res[6];

	dynamic = setup_dynamic ();
	fail_unless (gst_element_set_state (dynamic,
	GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
	"could not set to playing");

	inbuffer =
	gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY, in, 12, 0, 12,
	NULL, NULL);
	fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 12) == 0);
	caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
	gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
	gst_caps_unref (caps);
	ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

	/* pushing gives away my reference ... */
	fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
	/* ... but it ends up being collected on the global buffer list */
	fail_unless_equals_int (g_list_length (buffers), 1);
	fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

	fail_unless (gst_buffer_extract (outbuffer, 0, res, 12) == 12);
	GST_INFO
	("expected %+5d %+5d %+5d %+5d %+5d %+5d real %+5d %+5d %+5d %+5d %+5d %+5d",
	in[0], in[1], in[2], in[3], in[4], in[5], res[0], res[1], res[2], res[3],
	res[4], res[5]);
	fail_unless (gst_buffer_memcmp (outbuffer, 0, in, 12) == 0);

	/* cleanup */
	cleanup_dynamic (dynamic);
	}

	GST_END_TEST;

	GST_START_TEST (test_compress_hard_50_50)
	{
	GstElement *dynamic;
	GstBuffer inbuffer, outbuffer;
	GstCaps *caps;
	gint16 in[8] = { -30000, 24576, -16384, 256, -128, 0, -24576, 30000 };
	gint16 res[8];

	dynamic = setup_dynamic ();
	g_object_set (G_OBJECT (dynamic), "mode", 0, NULL);
	g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
	g_object_set (G_OBJECT (dynamic), "ratio", 0.5, NULL);
	g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
	fail_unless (gst_element_set_state (dynamic,
	GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
	"could not set to playing");

	inbuffer = gst_buffer_new_and_alloc (16);
	gst_buffer_fill (inbuffer, 0, in, 16);
	fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
	caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
	gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
	gst_caps_unref (caps);
	ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

	/* pushing gives away my reference ... */
	fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
	/* ... and puts a new buffer on the global list */
	fail_unless_equals_int (g_list_length (buffers), 1);
	fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

	fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

	fail_unless (res[0] > in[0]);
	fail_unless (res[1] < in[1]);
	fail_unless (res[2] == in[2]);
	fail_unless (res[3] == in[3]);
	fail_unless (res[4] == in[4]);
	fail_unless (res[5] == in[5]);
	fail_unless (res[6] > in[6]);
	fail_unless (res[7] < in[7]);

	/* cleanup */
	cleanup_dynamic (dynamic);
	}

	GST_END_TEST;

	GST_START_TEST (test_compress_soft_50_50)
	{
	GstElement *dynamic;
	GstBuffer inbuffer, outbuffer;
	GstCaps *caps;
	gint16 in[8] = { -30000, 24576, -16384, 256, -128, 0, -24576, 30000 };
	gint16 res[8];

	dynamic = setup_dynamic ();
	g_object_set (G_OBJECT (dynamic), "mode", 0, NULL);
	g_object_set (G_OBJECT (dynamic), "characteristics", 1, NULL);
	g_object_set (G_OBJECT (dynamic), "ratio", 0.5, NULL);
	g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
	fail_unless (gst_element_set_state (dynamic,
	GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
	"could not set to playing");

	inbuffer = gst_buffer_new_and_alloc (16);
	gst_buffer_fill (inbuffer, 0, in, 16);
	fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
	caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
	gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
	gst_caps_unref (caps);
	ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

	/* pushing gives away my reference ... */
	fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
	/* ... and puts a new buffer on the global list */
	fail_unless_equals_int (g_list_length (buffers), 1);
	fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

	fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

	fail_unless (res[0] > in[0]);
	fail_unless (res[1] < in[1]);
	fail_unless (res[2] == in[2]);
	fail_unless (res[3] == in[3]);
	fail_unless (res[4] == in[4]);
	fail_unless (res[5] == in[5]);
	fail_unless (res[6] > in[6]);
	fail_unless (res[7] < in[7]);

	/* cleanup */
	cleanup_dynamic (dynamic);
	}

	GST_END_TEST;

	GST_START_TEST (test_compress_hard_100_50)
	{
	GstElement *dynamic;
	GstBuffer inbuffer, outbuffer;
	GstCaps *caps;
	gint16 in[8] = { -30000, 24576, -16384, 256, -128, 0, -24576, 30000 };
	gint16 res[8];

	dynamic = setup_dynamic ();
	g_object_set (G_OBJECT (dynamic), "mode", 0, NULL);
	g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
	g_object_set (G_OBJECT (dynamic), "ratio", 0.5, NULL);
	g_object_set (G_OBJECT (dynamic), "threshold", 1.0, NULL);
	fail_unless (gst_element_set_state (dynamic,
	GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
	"could not set to playing");

	inbuffer = gst_buffer_new_and_alloc (16);
	gst_buffer_fill (inbuffer, 0, in, 16);
	fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
	caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
	gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
	gst_caps_unref (caps);
	ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

	/* pushing gives away my reference ... */
	fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
	/* ... and puts a new buffer on the global list */
	fail_unless_equals_int (g_list_length (buffers), 1);
	fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

	fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

	fail_unless (res[0] == in[0]);
	fail_unless (res[1] == in[1]);
	fail_unless (res[2] == in[2]);
	fail_unless (res[3] == in[3]);
	fail_unless (res[4] == in[4]);
	fail_unless (res[5] == in[5]);
	fail_unless (res[6] == in[6]);
	fail_unless (res[7] == in[7]);

	/* cleanup */
	cleanup_dynamic (dynamic);
	}

	GST_END_TEST;


	GST_START_TEST (test_expand_hard_50_200)
	{
	GstElement *dynamic;
	GstBuffer inbuffer, outbuffer;
	GstCaps *caps;
	gint16 in[8] = { -30000, 24576, -16383, 256, -128, 0, -24576, 30000 };
	gint16 res[8];

	dynamic = setup_dynamic ();
	g_object_set (G_OBJECT (dynamic), "mode", 1, NULL);
	g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
	g_object_set (G_OBJECT (dynamic), "ratio", 2.0, NULL);
	g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
	fail_unless (gst_element_set_state (dynamic,
	GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
	"could not set to playing");

	inbuffer = gst_buffer_new_and_alloc (16);
	gst_buffer_fill (inbuffer, 0, in, 16);
	fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
	caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
	gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
	gst_caps_unref (caps);
	ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

	/* pushing gives away my reference ... */
	fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
	/* ... and puts a new buffer on the global list */
	fail_unless_equals_int (g_list_length (buffers), 1);
	fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

	fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

	fail_unless (res[0] == in[0]);
	fail_unless (res[1] == in[1]);
	fail_unless (res[2] > in[2]);
	fail_unless (res[3] < in[3]);
	fail_unless (res[4] > in[4]);
	fail_unless (res[5] == in[5]);
	fail_unless (res[6] == in[6]);
	fail_unless (res[7] == in[7]);

	/* cleanup */
	cleanup_dynamic (dynamic);
	}

	GST_END_TEST;

	GST_START_TEST (test_expand_soft_50_200)
	{
	GstElement *dynamic;
	GstBuffer inbuffer, outbuffer;
	GstCaps *caps;
	gint16 in[8] = { -30000, 24576, -16383, 256, -128, 0, -24576, 30000 };
	gint16 res[8];

	dynamic = setup_dynamic ();
	g_object_set (G_OBJECT (dynamic), "mode", 1, NULL);
	g_object_set (G_OBJECT (dynamic), "characteristics", 1, NULL);
	g_object_set (G_OBJECT (dynamic), "ratio", 2.0, NULL);
	g_object_set (G_OBJECT (dynamic), "threshold", 0.5, NULL);
	fail_unless (gst_element_set_state (dynamic,
	GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
	"could not set to playing");

	inbuffer = gst_buffer_new_and_alloc (16);
	gst_buffer_fill (inbuffer, 0, in, 16);
	fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
	caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
	gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
	gst_caps_unref (caps);
	ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

	/* pushing gives away my reference ... */
	fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
	/* ... and puts a new buffer on the global list */
	fail_unless_equals_int (g_list_length (buffers), 1);
	fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

	fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

	fail_unless (res[0] == in[0]);
	fail_unless (res[1] == in[1]);
	fail_unless (res[2] > in[2]);
	fail_unless (res[3] < in[3]);
	fail_unless (res[4] > in[4]);
	fail_unless (res[5] == in[5]);
	fail_unless (res[6] == in[6]);
	fail_unless (res[7] == in[7]);

	/* cleanup */
	cleanup_dynamic (dynamic);
	}

	GST_END_TEST;

	GST_START_TEST (test_expand_hard_0_200)
	{
	GstElement *dynamic;
	GstBuffer inbuffer, outbuffer;
	GstCaps *caps;
	gint16 in[8] = { -30000, 24576, -16383, 256, -128, 0, -24576, 30000 };
	gint16 res[8];

	dynamic = setup_dynamic ();
	g_object_set (G_OBJECT (dynamic), "mode", 1, NULL);
	g_object_set (G_OBJECT (dynamic), "characteristics", 0, NULL);
	g_object_set (G_OBJECT (dynamic), "ratio", 2.0, NULL);
	g_object_set (G_OBJECT (dynamic), "threshold", 0.0, NULL);
	fail_unless (gst_element_set_state (dynamic,
	GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
	"could not set to playing");

	inbuffer = gst_buffer_new_and_alloc (16);
	gst_buffer_fill (inbuffer, 0, in, 16);
	fail_unless (gst_buffer_memcmp (inbuffer, 0, in, 16) == 0);
	caps = gst_caps_from_string (DYNAMIC_CAPS_STRING);
	gst_check_setup_events (mysrcpad, dynamic, caps, GST_FORMAT_TIME);
	gst_caps_unref (caps);
	ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);

	/* pushing gives away my reference ... */
	fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
	/* ... and puts a new buffer on the global list */
	fail_unless_equals_int (g_list_length (buffers), 1);
	fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);

	fail_unless (gst_buffer_extract (outbuffer, 0, res, 16) == 16);

	fail_unless (res[0] == in[0]);
	fail_unless (res[1] == in[1]);
	fail_unless (res[2] == in[2]);
	fail_unless (res[3] == in[3]);
	fail_unless (res[4] == in[4]);
	fail_unless (res[5] == in[5]);
	fail_unless (res[6] == in[6]);
	fail_unless (res[7] == in[7]);

	/* cleanup */
	cleanup_dynamic (dynamic);
	}

	GST_END_TEST;

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

	suite_add_tcase (s, tc_chain);
	tcase_add_test (tc_chain, test_passthrough);
	tcase_add_test (tc_chain, test_compress_hard_50_50);
	tcase_add_test (tc_chain, test_compress_soft_50_50);
	tcase_add_test (tc_chain, test_compress_hard_100_50);
	tcase_add_test (tc_chain, test_expand_hard_50_200);
	tcase_add_test (tc_chain, test_expand_soft_50_200);
	tcase_add_test (tc_chain, test_expand_hard_0_200);
	return s;
	}

	GST_CHECK_MAIN (dynamic);