Add support for mmap stream
Add support for MMAP streams created by Oboe service.
- A new audio thread class MmapThread deriving from ThreadBase
is added to manage permissions, volume, routing and wakelocks for activity
on MMAP streams.
- Requests received over MmapStreamInterface to open, start and stop
a MMAP stream are forwarded to audio policy manager so that activity
on MMAP capture and playback streams is visible to audio policy and
taken into account in volume and routing management.
`
Bug: Bug: 33398120
Test: manual test
Change-Id: I957906495fe9277d2972d810b633f50cd1e14ec3
diff --git a/services/audioflinger/PlaybackTracks.h b/services/audioflinger/PlaybackTracks.h
index 27e4627..72a3777 100644
--- a/services/audioflinger/PlaybackTracks.h
+++ b/services/audioflinger/PlaybackTracks.h
@@ -118,10 +118,9 @@
public:
void triggerEvents(AudioSystem::sync_event_t type);
- void invalidate();
+ virtual void invalidate();
void disable();
- bool isInvalid() const { return mIsInvalid; }
int fastIndex() const { return mFastIndex; }
protected:
@@ -166,7 +165,6 @@
volatile float mCachedVolume; // combined master volume and stream type volume;
// 'volatile' means accessed without lock or
// barrier, but is read/written atomically
- bool mIsInvalid; // non-resettable latch, set by invalidate()
sp<AudioTrackServerProxy> mAudioTrackServerProxy;
bool mResumeToStopping; // track was paused in stopping state.
bool mFlushHwPending; // track requests for thread flush