Clean up HAL render position reporting
Since AIDL HAL reports 64-bit position values, move the logic
for proper expansion of 32-bit positions from AudioStreamOut
into StreamOutHidl. Add synchronization which did not exist
in AudioStreamOut. This is because the calling code
does not always use same mutexes when calling into relevant
methods, thus data races are possible.
Also, clean up StreamOutHalInterface and AudioStreamOut
interface by removing obsolete methods.
Bug: 338557486
Test: atest CtsMediaAudioTestCases
Change-Id: I30701af589f3721b3d8bf7886acc251ceefadc46
diff --git a/services/audioflinger/datapath/AudioStreamOut.h b/services/audioflinger/datapath/AudioStreamOut.h
index ea41bba..2c9fb3e 100644
--- a/services/audioflinger/datapath/AudioStreamOut.h
+++ b/services/audioflinger/datapath/AudioStreamOut.h
@@ -51,9 +51,6 @@
virtual ~AudioStreamOut();
- // Get the bottom 32-bits of the 64-bit render position.
- status_t getRenderPosition(uint32_t *frames);
-
virtual status_t getRenderPosition(uint64_t *frames);
virtual status_t getPresentationPosition(uint64_t *frames, struct timespec *timestamp);
@@ -91,21 +88,14 @@
virtual status_t flush();
virtual status_t standby();
- // Avoid suppressing retrograde motion in mRenderPosition for gapless offload/direct when
- // transitioning between tracks.
- // The HAL resets the frame position without flush/stop being called, but calls back prior to
- // this event. So, on the next occurrence of retrograde motion, we permit backwards movement of
- // mRenderPosition.
- virtual void presentationComplete() { mExpectRetrograde = true; }
+ virtual void presentationComplete();
protected:
uint64_t mFramesWritten = 0; // reset by flush
uint64_t mFramesWrittenAtStandby = 0;
- uint64_t mRenderPosition = 0; // reset by flush, standby, or presentation complete
int mRateMultiplier = 1;
bool mHalFormatHasProportionalFrames = false;
size_t mHalFrameSize = 0;
- bool mExpectRetrograde = false; // see presentationComplete
};
} // namespace android