aaudio: fix problems with PlayerBase and ref counting

CTS test was crashing because of a multiple inheritance
problem involving PlayerBase.
We now implement separate PlayerBase class that sits between
AudioStream and the system.

Bug: 65450109
Test: CTS nativemedia/aaudio
Change-Id: I424663acc1eeacc9544769991495cb48f4110359
diff --git a/media/libaaudio/src/client/AudioStreamInternalPlay.cpp b/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
index f2e40a2..1e02eee 100644
--- a/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
+++ b/media/libaaudio/src/client/AudioStreamInternalPlay.cpp
@@ -49,7 +49,7 @@
     mClockModel.stop(AudioClock::getNanoseconds());
     setState(AAUDIO_STREAM_STATE_PAUSING);
     mAtomicTimestamp.clear();
-    return AAudioConvert_androidToAAudioResult(pauseWithStatus());
+    return mServiceInterface.pauseStream(mServiceStreamHandle);
 }
 
 aaudio_result_t AudioStreamInternalPlay::requestPause()
@@ -290,7 +290,6 @@
     return framesWritten;
 }
 
-
 int64_t AudioStreamInternalPlay::getFramesRead()
 {
     int64_t framesReadHardware;
@@ -364,3 +363,10 @@
           result, (int) isActive());
     return NULL;
 }
+
+//------------------------------------------------------------------------------
+// Implementation of PlayerBase
+status_t AudioStreamInternalPlay::doSetVolume() {
+    mVolumeRamp.setTarget(mStreamVolume * getDuckAndMuteVolume());
+    return android::NO_ERROR;
+}