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Diffstat (limited to 'lib/igt_alsa.c')
-rw-r--r--lib/igt_alsa.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/lib/igt_alsa.c b/lib/igt_alsa.c
index fc6d336b..3b1a9e90 100644
--- a/lib/igt_alsa.c
+++ b/lib/igt_alsa.c
@@ -182,6 +182,8 @@ static char *alsa_resolve_indentifier(const char *device_name, int skip)
continue;
}
+ igt_debug("Matched device \"%s\"\n", pcm_name);
+
snprintf(name, sizeof(name), "hw:%d,%d", card,
dev);
@@ -329,6 +331,9 @@ static bool alsa_test_configuration(snd_pcm_t *handle, int channels,
{
snd_pcm_hw_params_t *params;
int ret;
+ unsigned int min_channels, max_channels;
+ unsigned int min_rate, max_rate;
+ int min_rate_dir, max_rate_dir;
snd_pcm_hw_params_alloca(&params);
@@ -337,12 +342,24 @@ static bool alsa_test_configuration(snd_pcm_t *handle, int channels,
return false;
ret = snd_pcm_hw_params_test_rate(handle, params, sampling_rate, 0);
- if (ret < 0)
+ if (ret < 0) {
+ snd_pcm_hw_params_get_rate_min(params, &min_rate, &min_rate_dir);
+ snd_pcm_hw_params_get_rate_max(params, &max_rate, &max_rate_dir);
+ igt_debug("Output device supports rates between %u and %u, "
+ "requested %d\n",
+ min_rate, max_rate, sampling_rate);
return false;
+ }
ret = snd_pcm_hw_params_test_channels(handle, params, channels);
- if (ret < 0)
+ if (ret < 0) {
+ snd_pcm_hw_params_get_channels_min(params, &min_channels);
+ snd_pcm_hw_params_get_channels_max(params, &max_channels);
+ igt_debug("Output device supports between %u and "
+ "%u channels, requested %d\n",
+ min_channels, max_channels, channels);
return false;
+ }
return true;
}