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Diffstat (limited to 'tests/check/elements/audiocheblimit.c')
-rw-r--r-- | tests/check/elements/audiocheblimit.c | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/tests/check/elements/audiocheblimit.c b/tests/check/elements/audiocheblimit.c new file mode 100644 index 00000000..35a21e51 --- /dev/null +++ b/tests/check/elements/audiocheblimit.c @@ -0,0 +1,341 @@ +/* GStreamer + * + * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org> + * + * audiochebyshevfreqlimit.c: Unit test for the audiochebyshevfreqlimit 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 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_audiochebyshevfreqlimit () +{ + GstElement *audiochebyshevfreqlimit; + + GST_DEBUG ("setup_audiochebyshevfreqlimit"); + audiochebyshevfreqlimit = gst_check_setup_element ("audiochebyshevfreqlimit"); + mysrcpad = + gst_check_setup_src_pad (audiochebyshevfreqlimit, &srctemplate, NULL); + mysinkpad = + gst_check_setup_sink_pad (audiochebyshevfreqlimit, &sinktemplate, NULL); + gst_pad_set_active (mysrcpad, TRUE); + gst_pad_set_active (mysinkpad, TRUE); + + return audiochebyshevfreqlimit; +} + +void +cleanup_audiochebyshevfreqlimit (GstElement * audiochebyshevfreqlimit) +{ + GST_DEBUG ("cleanup_audiochebyshevfreqlimit"); + + 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 (audiochebyshevfreqlimit); + gst_check_teardown_sink_pad (audiochebyshevfreqlimit); + gst_check_teardown_element (audiochebyshevfreqlimit); +} + +/* 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 *audiochebyshevfreqlimit; + GstBuffer *inbuffer, *outbuffer; + GstCaps *caps; + gdouble *in, *res, rms; + gint i; + + audiochebyshevfreqlimit = setup_audiochebyshevfreqlimit (); + /* Set to lowpass */ + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "mode", 0, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "poles", 8, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "type", 1, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "ripple", 0.25, NULL); + + fail_unless (gst_element_set_state (audiochebyshevfreqlimit, + GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS, + "could not set to playing"); + + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "cutoff", 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 (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); + /* ... 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); + + res = (gdouble *) GST_BUFFER_DATA (outbuffer); + + rms = 0.0; + for (i = 0; i < 128; i++) + rms += res[i] * res[i]; + rms = sqrt (rms / 128.0); + fail_unless (rms >= 0.9); + + /* cleanup */ + cleanup_audiochebyshevfreqlimit (audiochebyshevfreqlimit); +} + +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 *audiochebyshevfreqlimit; + GstBuffer *inbuffer, *outbuffer; + GstCaps *caps; + gdouble *in, *res, rms; + gint i; + + audiochebyshevfreqlimit = setup_audiochebyshevfreqlimit (); + /* Set to lowpass */ + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "mode", 0, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "poles", 8, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "type", 1, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "ripple", 0.25, NULL); + + fail_unless (gst_element_set_state (audiochebyshevfreqlimit, + GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS, + "could not set to playing"); + + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "cutoff", 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 (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); + /* ... 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); + + res = (gdouble *) GST_BUFFER_DATA (outbuffer); + + rms = 0.0; + for (i = 0; i < 128; i++) + rms += res[i] * res[i]; + rms = sqrt (rms / 128.0); + fail_unless (rms <= 0.1); + + /* cleanup */ + cleanup_audiochebyshevfreqlimit (audiochebyshevfreqlimit); +} + +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 *audiochebyshevfreqlimit; + GstBuffer *inbuffer, *outbuffer; + GstCaps *caps; + gdouble *in, *res, rms; + gint i; + + audiochebyshevfreqlimit = setup_audiochebyshevfreqlimit (); + /* Set to highpass */ + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "mode", 1, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "poles", 8, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "type", 1, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "ripple", 0.25, NULL); + + fail_unless (gst_element_set_state (audiochebyshevfreqlimit, + GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS, + "could not set to playing"); + + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "cutoff", 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 (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); + /* ... 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); + + res = (gdouble *) GST_BUFFER_DATA (outbuffer); + + rms = 0.0; + for (i = 0; i < 128; i++) + rms += res[i] * res[i]; + rms = sqrt (rms / 128.0); + fail_unless (rms <= 0.1); + + /* cleanup */ + cleanup_audiochebyshevfreqlimit (audiochebyshevfreqlimit); +} + +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 *audiochebyshevfreqlimit; + GstBuffer *inbuffer, *outbuffer; + GstCaps *caps; + gdouble *in, *res, rms; + gint i; + + audiochebyshevfreqlimit = setup_audiochebyshevfreqlimit (); + /* Set to highpass */ + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "mode", 1, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "poles", 8, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "type", 1, NULL); + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "ripple", 0.25, NULL); + + fail_unless (gst_element_set_state (audiochebyshevfreqlimit, + GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS, + "could not set to playing"); + + g_object_set (G_OBJECT (audiochebyshevfreqlimit), "cutoff", 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 (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); + /* ... 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); + + res = (gdouble *) GST_BUFFER_DATA (outbuffer); + + rms = 0.0; + for (i = 0; i < 128; i++) + rms += res[i] * res[i]; + rms = sqrt (rms / 128.0); + fail_unless (rms >= 0.9); + + /* cleanup */ + cleanup_audiochebyshevfreqlimit (audiochebyshevfreqlimit); +} + +GST_END_TEST; + +Suite * +audiochebyshevfreqlimit_suite (void) +{ + Suite *s = suite_create ("audiochebyshevfreqlimit"); + 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); + + return s; +} + +int +main (int argc, char **argv) +{ + int nf; + + Suite *s = audiochebyshevfreqlimit_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; +} |