void AudioInputCubeb::UpdateDeviceList()
{
cubeb* cubebContext = CubebUtils::GetCubebContext();
if (!cubebContext) {
return;
}
cubeb_device_collection *devices = nullptr;
if (CUBEB_OK != cubeb_enumerate_devices(cubebContext,
CUBEB_DEVICE_TYPE_INPUT,
&devices)) {
return;
}
for (auto& device_index : (*mDeviceIndexes)) {
device_index = -1; // unmapped
}
// We keep all the device names, but wipe the mappings and rebuild them
// Calculate translation from existing mDevices to new devices. Note we
// never end up with less devices than before, since people have
// stashed indexes.
// For some reason the "fake" device for automation is marked as DISABLED,
// so white-list it.
mDefaultDevice = -1;
for (uint32_t i = 0; i < devices->count; i++) {
if (devices->device[i]->type == CUBEB_DEVICE_TYPE_INPUT && // paranoia
(devices->device[i]->state == CUBEB_DEVICE_STATE_ENABLED ||
(devices->device[i]->state == CUBEB_DEVICE_STATE_DISABLED &&
devices->device[i]->friendly_name &&
strcmp(devices->device[i]->friendly_name, "Sine source at 440 Hz") == 0)))
{
auto j = mDeviceNames->IndexOf(devices->device[i]->device_id);
if (j != nsTArray<nsCString>::NoIndex) {
// match! update the mapping
(*mDeviceIndexes)[j] = i;
} else {
// new device, add to the array
mDeviceIndexes->AppendElement(i);
mDeviceNames->AppendElement(devices->device[i]->device_id);
}
if (devices->device[i]->preferred & CUBEB_DEVICE_PREF_VOICE) {
// There can be only one... we hope
NS_ASSERTION(mDefaultDevice == -1, "multiple default cubeb input devices!");
mDefaultDevice = i;
}
}
}
StaticMutexAutoLock lock(sMutex);
// swap state
if (mDevices) {
cubeb_device_collection_destroy(mDevices);
}
mDevices = devices;
}
TEST(cubeb, stable_devid)
{
/* Test that the devid field of cubeb_device_info is stable
* (ie. compares equal) over two invocations of
* cubeb_enumerate_devices(). */
int r;
cubeb * ctx;
cubeb_device_collection first;
cubeb_device_collection second;
cubeb_device_type all_devices =
(cubeb_device_type) (CUBEB_DEVICE_TYPE_INPUT | CUBEB_DEVICE_TYPE_OUTPUT);
size_t n;
r = common_init(&ctx, "test_sanity");
ASSERT_EQ(r, CUBEB_OK);
ASSERT_NE(ctx, nullptr);
r = cubeb_enumerate_devices(ctx, all_devices, &first);
if (r == CUBEB_ERROR_NOT_SUPPORTED)
return;
ASSERT_EQ(r, CUBEB_OK);
r = cubeb_enumerate_devices(ctx, all_devices, &second);
ASSERT_EQ(r, CUBEB_OK);
ASSERT_EQ(first.count, second.count);
for (n = 0; n < first.count; n++) {
ASSERT_EQ(first.device[n].devid, second.device[n].devid);
}
r = cubeb_device_collection_destroy(ctx, &first);
ASSERT_EQ(r, CUBEB_OK);
r = cubeb_device_collection_destroy(ctx, &second);
ASSERT_EQ(r, CUBEB_OK);
cubeb_destroy(ctx);
}