2 Copyright (C) 2015 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 #include "lib/audio_delay.h"
22 #include "lib/audio_buffers.h"
23 #include <boost/test/unit_test.hpp>
29 using boost::shared_ptr;
31 #define CHECK_SAMPLE(c,f,r) \
32 if (fabs(out->data(c)[f] - (r)) > 0.1) { \
33 cerr << "Sample " << f << " at line " << __LINE__ << " is " << out->data(c)[f] << " not " << r << "; difference is " << fabs(out->data(c)[f] - (r)) << "\n"; \
34 BOOST_REQUIRE (fabs(out->data(c)[f] - (r)) <= 0.1); \
37 /** Block size greater than delay */
38 BOOST_AUTO_TEST_CASE (audio_processor_delay_test1)
40 AudioDelay delay (64);
44 shared_ptr<AudioBuffers> in (new AudioBuffers (C, 256));
45 for (int i = 0; i < C; ++i) {
46 for (int j = 0; j < 256; ++j) {
51 shared_ptr<AudioBuffers> out = delay.run (in);
52 BOOST_REQUIRE_EQUAL (out->frames(), in->frames());
54 /* Silence at the start */
55 for (int i = 0; i < C; ++i) {
56 for (int j = 0; j < 64; ++j) {
57 CHECK_SAMPLE (i, j, 0);
61 /* Then the delayed data */
62 for (int i = 0; i < C; ++i) {
63 for (int j = 64; j < 256; ++j) {
64 CHECK_SAMPLE (i, j, j - 64);
68 /* Feed some more in */
69 for (int i = 0; i < C; ++i) {
70 for (int j = 0; j < 256; ++j) {
71 in->data(i)[j] = j + 256;
77 for (int i = 0; i < C; ++i) {
78 for (int j = 256; j < 512; ++j) {
79 CHECK_SAMPLE (i, j - 256, j - 64);
84 /** Block size less than delay */
85 BOOST_AUTO_TEST_CASE (audio_processor_delay_test2)
87 AudioDelay delay (256);
91 /* Feeding 4 blocks of 64 should give silence each time */
93 for (int i = 0; i < 4; ++i) {
94 shared_ptr<AudioBuffers> in (new AudioBuffers (C, 64));
95 for (int j = 0; j < C; ++j) {
96 for (int k = 0; k < 64; ++k) {
97 in->data(j)[k] = k + i * 64;
101 shared_ptr<AudioBuffers> out = delay.run (in);
102 BOOST_REQUIRE_EQUAL (out->frames(), in->frames());
104 /* Check for silence */
105 for (int j = 0; j < C; ++j) {
106 for (int k = 0; k < 64; ++k) {
107 CHECK_SAMPLE (j, k, 0);
112 /* Now feed 4 blocks of silence and we should see the data */
113 for (int i = 0; i < 4; ++i) {
114 /* Feed some silence */
115 shared_ptr<AudioBuffers> in (new AudioBuffers (C, 64));
117 shared_ptr<AudioBuffers> out = delay.run (in);
119 /* Should now see the delayed data */
120 for (int j = 0; j < C; ++j) {
121 for (int k = 0; k < 64; ++k) {
122 CHECK_SAMPLE (j, k, k + i * 64);