audio: Add optional 'DriverInterface::getPosition' method.
This is a method which can be optionally implemented
by a stream in case it can provide more exact position,
for example by taking into account data in intermediate
buffers.
Implemented this method for StreamAlsa and StreamRemoteSubmix.
Bug: 264712385
Test: atest VtsHalAudioCoreTargetTest
Change-Id: I392933f8f6b22d784726925199db00dcb0313648
diff --git a/audio/aidl/default/Stream.cpp b/audio/aidl/default/Stream.cpp
index 251dea0..215de94 100644
--- a/audio/aidl/default/Stream.cpp
+++ b/audio/aidl/default/Stream.cpp
@@ -110,10 +110,12 @@
if (isConnected) {
reply->observable.frames = mFrameCount;
reply->observable.timeNs = ::android::elapsedRealtimeNano();
- } else {
- reply->observable.frames = StreamDescriptor::Position::UNKNOWN;
- reply->observable.timeNs = StreamDescriptor::Position::UNKNOWN;
+ if (auto status = mDriver->getPosition(&reply->observable); status == ::android::OK) {
+ return;
+ }
}
+ reply->observable.frames = StreamDescriptor::Position::UNKNOWN;
+ reply->observable.timeNs = StreamDescriptor::Position::UNKNOWN;
}
void StreamWorkerCommonLogic::populateReplyWrongState(