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gstreamer/tests/check/elements/lpwsinc.c
Sebastian Dröge e38e701293 gst/filter/gstlpwsinc.*: Implement latency query and only forward those samples downstream that actually contain the ... 
Original commit message from CVS:
* gst/filter/gstlpwsinc.c: (gst_lpwsinc_class_init),
(gst_lpwsinc_init), (process_32), (process_64),
(lpwsinc_build_kernel), (lpwsinc_push_residue),
(lpwsinc_transform), (lpwsinc_start), (lpwsinc_query),
(lpwsinc_query_type), (lpwsinc_event), (lpwsinc_set_property):
* gst/filter/gstlpwsinc.h:
Implement latency query and only forward those samples downstream
that actually contain the data we want, i.e. drop kernel_length/2
in the beginning and append kernel_length/2 (created by convolving
the filter kernel with zeroes) to the end.
* tests/check/elements/lpwsinc.c: (GST_START_TEST):
Adjust the unit test for this slightly changed behaviour.
2007-08-16 09:48:27 +00:00

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/* GStreamer
*
* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
*
* lpwsinc.c: Unit test for the lpwsinc element
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/check/gstcheck.h>
#include <math.h>
/* 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 LPWSINC_CAPS_STRING \
"audio/x-raw-float, " \
"channels = (int) 1, " \
"rate = (int) 44100, " \
"endianness = (int) BYTE_ORDER, " \
"width = (int) 64" \
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-float, "
"channels = (int) 1, "
"rate = (int) 44100, "
"endianness = (int) BYTE_ORDER, " "width = (int) 64")
);
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-raw-float, "
"channels = (int) 1, "
"rate = (int) 44100, "
"endianness = (int) BYTE_ORDER, " "width = (int) 64")
);
GstElement *
setup_lpwsinc ()
{
GstElement *lpwsinc;
GST_DEBUG ("setup_lpwsinc");
lpwsinc = gst_check_setup_element ("lpwsinc");
mysrcpad = gst_check_setup_src_pad (lpwsinc, &srctemplate, NULL);
mysinkpad = gst_check_setup_sink_pad (lpwsinc, &sinktemplate, NULL);
gst_pad_set_active (mysrcpad, TRUE);
gst_pad_set_active (mysinkpad, TRUE);
return lpwsinc;
}
void
cleanup_lpwsinc (GstElement * lpwsinc)
{
GST_DEBUG ("cleanup_lpwsinc");
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 (lpwsinc);
gst_check_teardown_sink_pad (lpwsinc);
gst_check_teardown_element (lpwsinc);
}
/* Test if data containing only one frequency component
* at 0 is preserved with lowpass mode and a cutoff
* at rate/4 */
GST_START_TEST (test_lp_0hz)
{
GstElement *lpwsinc;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gdouble *in, *res, rms;
gint i;
GList *node;
lpwsinc = setup_lpwsinc ();
/* Set to lowpass */
g_object_set (G_OBJECT (lpwsinc), "mode", 0, NULL);
g_object_set (G_OBJECT (lpwsinc), "length", 21, NULL);
fail_unless (gst_element_set_state (lpwsinc,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
/* cutoff = sampling rate / 4, data = 0 */
g_object_set (G_OBJECT (lpwsinc), "frequency", 44100 / 4.0, NULL);
inbuffer = gst_buffer_new_and_alloc (128 * sizeof (gdouble));
in = (gdouble *) GST_BUFFER_DATA (inbuffer);
for (i = 0; i < 128; i++)
in[i] = 1.0;
caps = gst_caps_from_string (LPWSINC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
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);
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
/* ... and puts a new buffer on the global list */
fail_unless (g_list_length (buffers) >= 1);
for (node = buffers; node; node = node->next) {
gint buffer_length;
fail_if ((outbuffer = (GstBuffer *) node->data) == NULL);
res = (gdouble *) GST_BUFFER_DATA (outbuffer);
buffer_length = GST_BUFFER_SIZE (outbuffer) / sizeof (gdouble);
rms = 0.0;
for (i = 0; i < buffer_length; i++)
rms += res[i] * res[i];
rms = sqrt (rms / buffer_length);
fail_unless (rms >= 0.9);
}
/* cleanup */
cleanup_lpwsinc (lpwsinc);
}
GST_END_TEST;
/* Test if data containing only one frequency component
* at rate/2 is erased with lowpass mode and a cutoff
* at rate/4 */
GST_START_TEST (test_lp_22050hz)
{
GstElement *lpwsinc;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gdouble *in, *res, rms;
gint i;
GList *node;
lpwsinc = setup_lpwsinc ();
/* Set to lowpass */
g_object_set (G_OBJECT (lpwsinc), "mode", 0, NULL);
g_object_set (G_OBJECT (lpwsinc), "length", 21, NULL);
fail_unless (gst_element_set_state (lpwsinc,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
g_object_set (G_OBJECT (lpwsinc), "frequency", 44100 / 4.0, NULL);
inbuffer = gst_buffer_new_and_alloc (128 * sizeof (gdouble));
in = (gdouble *) GST_BUFFER_DATA (inbuffer);
for (i = 0; i < 128; i += 2) {
in[i] = 1.0;
in[i + 1] = -1.0;
}
caps = gst_caps_from_string (LPWSINC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
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);
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
/* ... and puts a new buffer on the global list */
fail_unless (g_list_length (buffers) >= 1);
for (node = buffers; node; node = node->next) {
gint buffer_length;
fail_if ((outbuffer = (GstBuffer *) node->data) == NULL);
res = (gdouble *) GST_BUFFER_DATA (outbuffer);
buffer_length = GST_BUFFER_SIZE (outbuffer) / sizeof (gdouble);
rms = 0.0;
for (i = 0; i < buffer_length; i++)
rms += res[i] * res[i];
rms = sqrt (rms / buffer_length);
fail_unless (rms <= 0.1);
}
/* cleanup */
cleanup_lpwsinc (lpwsinc);
}
GST_END_TEST;
/* Test if data containing only one frequency component
* at 0 is erased with highpass mode and a cutoff
* at rate/4 */
GST_START_TEST (test_hp_0hz)
{
GstElement *lpwsinc;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gdouble *in, *res, rms;
gint i;
GList *node;
lpwsinc = setup_lpwsinc ();
/* Set to highpass */
g_object_set (G_OBJECT (lpwsinc), "mode", 1, NULL);
g_object_set (G_OBJECT (lpwsinc), "length", 21, NULL);
fail_unless (gst_element_set_state (lpwsinc,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
g_object_set (G_OBJECT (lpwsinc), "frequency", 44100 / 4.0, NULL);
inbuffer = gst_buffer_new_and_alloc (128 * sizeof (gdouble));
in = (gdouble *) GST_BUFFER_DATA (inbuffer);
for (i = 0; i < 128; i++)
in[i] = 1.0;
caps = gst_caps_from_string (LPWSINC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
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);
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
/* ... and puts a new buffer on the global list */
fail_unless (g_list_length (buffers) >= 1);
for (node = buffers; node; node = node->next) {
gint buffer_length;
fail_if ((outbuffer = (GstBuffer *) node->data) == NULL);
res = (gdouble *) GST_BUFFER_DATA (outbuffer);
buffer_length = GST_BUFFER_SIZE (outbuffer) / sizeof (gdouble);
rms = 0.0;
for (i = 0; i < buffer_length; i++)
rms += res[i] * res[i];
rms = sqrt (rms / buffer_length);
fail_unless (rms <= 0.1);
}
/* cleanup */
cleanup_lpwsinc (lpwsinc);
}
GST_END_TEST;
/* Test if data containing only one frequency component
* at rate/2 is preserved with highpass mode and a cutoff
* at rate/4 */
GST_START_TEST (test_hp_22050hz)
{
GstElement *lpwsinc;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gdouble *in, *res, rms;
gint i;
GList *node;
lpwsinc = setup_lpwsinc ();
/* Set to highpass */
g_object_set (G_OBJECT (lpwsinc), "mode", 1, NULL);
g_object_set (G_OBJECT (lpwsinc), "length", 21, NULL);
fail_unless (gst_element_set_state (lpwsinc,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
g_object_set (G_OBJECT (lpwsinc), "frequency", 44100 / 4.0, NULL);
inbuffer = gst_buffer_new_and_alloc (128 * sizeof (gdouble));
in = (gdouble *) GST_BUFFER_DATA (inbuffer);
for (i = 0; i < 128; i += 2) {
in[i] = 1.0;
in[i + 1] = -1.0;
}
caps = gst_caps_from_string (LPWSINC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
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);
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
/* ... and puts a new buffer on the global list */
fail_unless (g_list_length (buffers) >= 1);
fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);
for (node = buffers; node; node = node->next) {
gint buffer_length;
fail_if ((outbuffer = (GstBuffer *) node->data) == NULL);
res = (gdouble *) GST_BUFFER_DATA (outbuffer);
buffer_length = GST_BUFFER_SIZE (outbuffer) / sizeof (gdouble);
rms = 0.0;
for (i = 0; i < buffer_length; i++)
rms += res[i] * res[i];
rms = sqrt (rms / buffer_length);
fail_unless (rms >= 0.9);
}
/* cleanup */
cleanup_lpwsinc (lpwsinc);
}
GST_END_TEST;
/* Test if buffers smaller than the kernel size are handled
* correctly without accessing wrong memory areas */
GST_START_TEST (test_small_buffer)
{
GstElement *lpwsinc;
GstBuffer *inbuffer, *outbuffer;
GstCaps *caps;
gdouble *in;
gdouble *res;
gint i;
lpwsinc = setup_lpwsinc ();
/* Set to lowpass */
g_object_set (G_OBJECT (lpwsinc), "mode", 0, NULL);
g_object_set (G_OBJECT (lpwsinc), "length", 101, NULL);
fail_unless (gst_element_set_state (lpwsinc,
GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
"could not set to playing");
g_object_set (G_OBJECT (lpwsinc), "frequency", 44100 / 4.0, NULL);
inbuffer = gst_buffer_new_and_alloc (20 * sizeof (gdouble));
in = (gdouble *) GST_BUFFER_DATA (inbuffer);
for (i = 0; i < 20; i++)
in[i] = 1.0;
caps = gst_caps_from_string (LPWSINC_CAPS_STRING);
gst_buffer_set_caps (inbuffer, caps);
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);
fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()));
/* ... and puts a new buffer on the global list */
fail_unless (g_list_length (buffers) >= 1);
fail_if ((outbuffer = (GstBuffer *) buffers->data) == NULL);
/* cleanup */
cleanup_lpwsinc (lpwsinc);
}
GST_END_TEST;
Suite *
lpwsinc_suite (void)
{
Suite *s = suite_create ("lpwsinc");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_lp_0hz);
tcase_add_test (tc_chain, test_lp_22050hz);
tcase_add_test (tc_chain, test_hp_0hz);
tcase_add_test (tc_chain, test_hp_22050hz);
tcase_add_test (tc_chain, test_small_buffer);
return s;
}
int
main (int argc, char **argv)
{
int nf;
Suite *s = lpwsinc_suite ();
SRunner *sr = srunner_create (s);
gst_check_init (&argc, &argv);
srunner_run_all (sr, CK_NORMAL);
nf = srunner_ntests_failed (sr);
srunner_free (sr);
return nf;
}
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