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[v1,6/6] kselftest/alsa: Add more coverage of sample rates and channel counts

Message ID 20221130000608.519574-7-broonie@kernel.org
State Superseded
Headers show
Series kselftest/alsa: pcm-test improvements | expand

Commit Message

Mark Brown Nov. 30, 2022, 12:06 a.m. UTC
Now that we can skip unsupported configurations add some more test cases
using that, cover 8kHz, 44.1kHz and 96kHz plus 8kHz mono and 48kHz 6
channel.

44.1kHz is a different clock base to the existing 48kHz tests and may
therefore show problems with the clock configuration if only 8kHz based
rates are really available (or help diagnose if bad clocking is due to
only 44.1kHz based rates being supported). 8kHz mono and 48Hz 6 channel
are real world formats and should show if clocking does not account for
channel count properly.

Signed-off-by: Mark Brown <broonie@kernel.org>
---
 tools/testing/selftests/alsa/pcm-test.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

Comments

Mark Brown Nov. 30, 2022, 1:42 p.m. UTC | #1
On Wed, Nov 30, 2022 at 12:06:08AM +0000, Mark Brown wrote:

> +	{ "8k.1.big",    "S16_LE",   8000, 2,     2000,   16000 },
> +	{ "8k.2.big",    "S16_LE",   8000, 2,     4000,   32000 },
> +	{ "44k1.2.big",  "S16_LE",  44100, 2,    22050,  192000 },
> +	{ "48k.2.small", "S16_LE",  48000, 2,      512,    4096 },
> +	{ "48k.2.big",   "S16_LE",  48000, 2,    24000,  192000 },
> +	{ "48k.6.big",   "S16_LE",  48000, 6,    48000,  576000 },
> +	{ "96k.2.big",   "S16_LE",  96000, 2,    48000,  384000 },

It looks like the period/buffer size numbers need some tuning other than
for 44.1kHz and 48kHz 6 channel, if I do any more fiddling with this
series I'll split the problematic ones out into a separate commit if I
don't get things sorted (but we could just leave things as-is and fix
incrementally too I guess).
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Patch

diff --git a/tools/testing/selftests/alsa/pcm-test.c b/tools/testing/selftests/alsa/pcm-test.c
index 614ccc52cece..d76a6f15ce25 100644
--- a/tools/testing/selftests/alsa/pcm-test.c
+++ b/tools/testing/selftests/alsa/pcm-test.c
@@ -517,8 +517,13 @@  static void test_pcm_time1(struct pcm_data *data,
 
 static const struct time_test_def time_tests[] = {
 	/* name              format     rate   chan  period  buffer */
-	{ "S16.48k.2.small", "S16_LE",  48000, 2,      512,    4096 },
-	{ "S16.48k.2.big",   "S16_LE",  48000, 2,    24000,  192000 },
+	{ "8k.1.big",    "S16_LE",   8000, 2,     2000,   16000 },
+	{ "8k.2.big",    "S16_LE",   8000, 2,     4000,   32000 },
+	{ "44k1.2.big",  "S16_LE",  44100, 2,    22050,  192000 },
+	{ "48k.2.small", "S16_LE",  48000, 2,      512,    4096 },
+	{ "48k.2.big",   "S16_LE",  48000, 2,    24000,  192000 },
+	{ "48k.6.big",   "S16_LE",  48000, 6,    48000,  576000 },
+	{ "96k.2.big",   "S16_LE",  96000, 2,    48000,  384000 },
 };
 
 int main(void)