audiopolicy: skip opening mmap profile during new device connection
During the new device connection, all listed mix ports ported are
opened, but for mmap case, when output or input is opened, it neads to
call createMmapBuffer which goes till audio DSP, adding up to latency
during device connections.
Skip opening input/output for mmap profiles during device connections.
Once, device is connected, if client needs a mmap session, mmap
sessions can be opened on the go.
Flag: EXEMPT bugfix
Bug: 345692843
Test: connect an external device, check opened inputs / outputs,
verify logs, after device connection play mmap
Test: run audiopolicy_tests
Change-Id: Iefcc3db8f30348347e1b107a6281cf8b6268d493
Merged-In: Iefcc3db8f30348347e1b107a6281cf8b6268d493
diff --git a/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
index c502fc2..7002e63 100644
--- a/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/DeviceDescriptor.h
@@ -282,6 +282,11 @@
const AudioProfileVector& getSupportedProfiles() { return mSupportedProfiles; }
+ /**
+ * @brief checks if all devices in device vector are attached to the HwModule or not
+ * @return true if all the devices in device vector are attached, otherwise false
+ */
+ bool areAllDevicesAttached() const;
// Return a string to describe the DeviceVector. The sensitive information will only be
// added to the string if `includeSensitiveInfo` is true.
std::string toString(bool includeSensitiveInfo = false) const;
diff --git a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
index 9f7b8fc..46a04de 100644
--- a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
@@ -541,4 +541,14 @@
return filteredDevices;
}
+bool DeviceVector::areAllDevicesAttached() const
+{
+ for (const auto &device : *this) {
+ if (!device->isAttached()) {
+ return false;
+ }
+ }
+ return true;
+}
+
} // namespace android
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 679f0ee..cc44299 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -6386,6 +6386,14 @@
if (!mConfig->getOutputDevices().contains(supportedDevice)) {
continue;
}
+
+ if (outProfile->isMmap() && !outProfile->hasDynamicAudioProfile()
+ && availProfileDevices.areAllDevicesAttached()) {
+ ALOGV("%s skip opening output for mmap profile %s", __func__,
+ outProfile->getTagName().c_str());
+ continue;
+ }
+
sp<SwAudioOutputDescriptor> outputDesc = new SwAudioOutputDescriptor(outProfile,
mpClientInterface);
audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
@@ -6445,6 +6453,14 @@
__func__, inProfile->getTagName().c_str());
continue;
}
+
+ if (inProfile->isMmap() && !inProfile->hasDynamicAudioProfile()
+ && availProfileDevices.areAllDevicesAttached()) {
+ ALOGV("%s skip opening input for mmap profile %s", __func__,
+ inProfile->getTagName().c_str());
+ continue;
+ }
+
sp<AudioInputDescriptor> inputDesc =
new AudioInputDescriptor(inProfile, mpClientInterface);
@@ -6599,7 +6615,11 @@
if (j != outputs.size()) {
continue;
}
-
+ if (profile->isMmap() && !profile->hasDynamicAudioProfile()) {
+ ALOGV("%s skip opening output for mmap profile %s",
+ __func__, profile->getTagName().c_str());
+ continue;
+ }
if (!profile->canOpenNewIo()) {
ALOGW("Max Output number %u already opened for this profile %s",
profile->maxOpenCount, profile->getTagName().c_str());
@@ -6750,6 +6770,11 @@
continue;
}
+ if (profile->isMmap() && !profile->hasDynamicAudioProfile()) {
+ ALOGV("%s skip opening input for mmap profile %s",
+ __func__, profile->getTagName().c_str());
+ continue;
+ }
if (!profile->canOpenNewIo()) {
ALOGW("Max Input number %u already opened for this profile %s",
profile->maxOpenCount, profile->getTagName().c_str());