libaudiohal: Modify calculation of buffer duration for mmap streams
To calculate to buffer duration of mmap streams, use burst size.
Burst size gives proper timings about consumption of mmap buffers,
eventually adjusting the mLastReplyLifeTimeNs, which impacts query of
position from HAL.
Bug: 342529498
Test: run mmap usecase and check timestamp query interval.
Change-Id: Ibb88765da62e019bbb677fe0b1980bbf64e82073
diff --git a/media/libaudiohal/impl/StreamHalAidl.h b/media/libaudiohal/impl/StreamHalAidl.h
index fff7a92..4523cc5 100644
--- a/media/libaudiohal/impl/StreamHalAidl.h
+++ b/media/libaudiohal/impl/StreamHalAidl.h
@@ -95,7 +95,8 @@
size_t getBufferSizeBytes() const { return mFrameSizeBytes * mBufferSizeFrames; }
size_t getBufferSizeFrames() const { return mBufferSizeFrames; }
size_t getBufferDurationMs(int32_t sampleRate) const {
- return sampleRate != 0 ? mBufferSizeFrames * MILLIS_PER_SECOND / sampleRate : 0;
+ auto bufferSize = mIsMmapped ? getMmapBurstSize() : mBufferSizeFrames;
+ return sampleRate != 0 ? bufferSize * MILLIS_PER_SECOND / sampleRate : 0;
}
CommandMQ* getCommandMQ() const { return mCommandMQ.get(); }
DataMQ* getDataMQ() const { return mDataMQ.get(); }
@@ -104,7 +105,7 @@
bool isAsynchronous() const { return mIsAsynchronous; }
bool isMmapped() const { return mIsMmapped; }
const MmapBufferDescriptor& getMmapBufferDescriptor() const { return mMmapBufferDescriptor; }
-
+ size_t getMmapBurstSize() const { return mMmapBufferDescriptor.burstSizeFrames;}
private:
static std::unique_ptr<DataMQ> maybeCreateDataMQ(
const ::aidl::android::hardware::audio::core::StreamDescriptor& descriptor) {