[igt-dev] [PATCH i-g-t 1/5] lib/igt_audio: add basic audio_signal_detect tests

Simon Ser
2019-05-29T13:32:41Z

This adds three basic library tests for igt_audio's audio_signal_detect: one
that checks that detection works with the generated signal unchanged, and two
that check that detection properly fails with a silent/noise input signal.

Signed-off-by: Simon Ser <simon.ser@intel.com>
---
lib/tests/igt_audio.c | 101 ++++++++++++++++++++++++++++++++++++++++++
lib/tests/meson.build | 7 +++
2 files changed, 108 insertions(+)
create mode 100644 lib/tests/igt_audio.c

diff --git a/lib/tests/igt_audio.c b/lib/tests/igt_audio.c
new file mode 100644
index 000000000000..0ca3a4342ad9
--- /dev/null
+++ b/lib/tests/igt_audio.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright © 2019 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Author: Simon Ser <simon.ser@intel.com>
+ */
+
+#include "config.h"
+
+#include "igt_core.h"
+#include "igt_audio.h"
+
+#define SAMPLING_RATE 44100
+#define CHANNELS 1
+#define BUFFER_LEN 2048
+
+static void test_signal_detect_verbatim(struct audio_signal *signal)
+{
+ double buf[BUFFER_LEN];
+ bool ok;
+
+ audio_signal_fill(signal, buf, BUFFER_LEN / CHANNELS);
+ ok = audio_signal_detect(signal, SAMPLING_RATE, 0, buf, BUFFER_LEN);
+ igt_assert(ok);
+}
+
+static void test_signal_detect_silence(struct audio_signal *signal)
+{
+ double buf[BUFFER_LEN] = {0};
+ bool ok;
+
+ ok = audio_signal_detect(signal, SAMPLING_RATE, 0, buf, BUFFER_LEN);
+
+ igt_assert(!ok);
+}
+
+static void test_signal_detect_noise(struct audio_signal *signal)
+{
+ double buf[BUFFER_LEN];
+ bool ok;
+ size_t i;
+
+ for (i = 0; i < BUFFER_LEN; i++)
+ buf[i] = (double) (i % 10) / 10;
+
+ ok = audio_signal_detect(signal, SAMPLING_RATE, 0, buf, BUFFER_LEN);
+
+ igt_assert(!ok);
+}
+
+igt_main
+{
+ struct audio_signal *signal;
+ int ret;
+
+ igt_subtest_group {
+ igt_fixture {
+ signal = audio_signal_init(CHANNELS, SAMPLING_RATE);
+
+ ret = audio_signal_add_frequency(signal, 300, 0);
+ igt_assert(ret == 0);
+ ret = audio_signal_add_frequency(signal, 700, 0);
+ igt_assert(ret == 0);
+ ret = audio_signal_add_frequency(signal, 5000, 0);
+ igt_assert(ret == 0);
+
+ audio_signal_synthesize(signal);
+ }
+
+ igt_subtest("signal-detect-verbatim")
+ test_signal_detect_verbatim(signal);
+
+ igt_subtest("signal-detect-silence")
+ test_signal_detect_silence(signal);
+
+ igt_subtest("signal-detect-noise")
+ test_signal_detect_noise(signal);
+
+ igt_fixture {
+ audio_signal_fini(signal);
+ }
+ }
+}
diff --git a/lib/tests/meson.build b/lib/tests/meson.build
index 9950bd59c174..eb75cbd571b9 100644
--- a/lib/tests/meson.build
+++ b/lib/tests/meson.build
@@ -22,6 +22,13 @@ lib_fail_tests = [
'igt_timeout',
]

+lib_tests_deps = igt_deps
+
+if chamelium.found()
+ lib_deps += chamelium
+ lib_tests += 'igt_audio'
+endif
+
foreach lib_test : lib_tests
exec = executable(lib_test, lib_test + '.c', install : false,
dependencies : igt_deps)
--
2.21.0