[igt-dev] [PATCH i-g-t v3] lib/tests/igt_audio: add a test holding a sample

Simon Ser
2019-06-05T08:03:27Z

Make sure holding a sample in the input signal makes audio_signal_detect fail.

Signed-off-by: Simon Ser <simon.ser@intel.com>
---
lib/tests/igt_audio.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)

diff --git a/lib/tests/igt_audio.c b/lib/tests/igt_audio.c
index 47e61adf74fe..d18537d66fb7 100644
--- a/lib/tests/igt_audio.c
+++ b/lib/tests/igt_audio.c
@@ -116,6 +116,28 @@ static void test_signal_detect_with_unexpected_freq(struct audio_signal *signal)
igt_assert(!ok);
}

+static void test_signal_detect_held_sample(struct audio_signal *signal)
+{
+ double *buf;
+ bool ok;
+ size_t i;
+ double value;
+
+ buf = malloc(BUFFER_LEN * sizeof(double));
+ audio_signal_fill(signal, buf, BUFFER_LEN / CHANNELS);
+
+ /* Repeat a sample in the middle of the signal */
+ value = buf[BUFFER_LEN / 3];
+ for (i = 0; i < 5; i++)
+ buf[BUFFER_LEN / 3 + i] = value;
+
+ ok = audio_signal_detect(signal, SAMPLING_RATE, 0, buf, BUFFER_LEN);
+
+ free(buf);
+
+ igt_assert(!ok);
+}
+
igt_main
{
struct audio_signal *signal;
@@ -151,6 +173,9 @@ igt_main
igt_subtest("signal-detect-with-unexpected-freq")
test_signal_detect_with_unexpected_freq(signal);

+ igt_subtest("signal-detect-held-sample")
+ test_signal_detect_held_sample(signal);
+
igt_fixture {
audio_signal_fini(signal);
}
--
2.21.0