aaudio: refactor references to shared FIFO
Reduce passing of raw pointers.
Use shared_ptrs and unique_ptrs.
Simplify memory management.
Refactor FifoBuffer into two subclasses so that
the internal memory management is simpler.
Bug: 151650670
Test: OboeTester "TEST OUTPUT"
Test: disable EXCLUSIVE mode
Test: OboeTester "ECHO INPUT TO OUTPUT"
Test: disable INPUT EXCLUSIVE mode
Change-Id: I10981767f8719f3cc3525df211285c53219a7979
diff --git a/services/oboeservice/AAudioMixer.cpp b/services/oboeservice/AAudioMixer.cpp
index c5d40b8..ad4b830 100644
--- a/services/oboeservice/AAudioMixer.cpp
+++ b/services/oboeservice/AAudioMixer.cpp
@@ -45,7 +45,7 @@
memset(mOutputBuffer.get(), 0, mBufferSizeInBytes);
}
-int32_t AAudioMixer::mix(int streamIndex, FifoBuffer *fifo, bool allowUnderflow) {
+int32_t AAudioMixer::mix(int streamIndex, std::shared_ptr<FifoBuffer> fifo, bool allowUnderflow) {
WrappingBuffer wrappingBuffer;
float *destination = mOutputBuffer.get();