commit 64dce361eb3dbfc8c78f474b4c24dcaceb904ae1
author Phil Burk <philburk@google.com> Wed Mar 28 15:30:39 2018 -0700
committer Phil Burk <philburk@google.com> Wed Aug 29 13:05:09 2018 -0700
tree 2f35249e3f31df10ab2923a6267432f02ad07384
parent 0d97cec0533f47237b16b294fd92a827f2ebdc6f

aaudio: add simple flowgraph system

Implement a simple data flow model that can be used to
chain various processing modules including:
    data format conversion
    volume ramping
    channel conversion

Bug: 65067568
Test: test_flowgraph.cpp
Change-Id: I81a5655406cfa8c1c7d7cef4d933879f823939a5

media/libaaudio/src/Android.bp

diff --git a/media/libaaudio/src/Android.bp b/media/libaaudio/src/Android.bp
index b9e28a0..4b5f30d 100644
--- a/media/libaaudio/src/Android.bp
+++ b/media/libaaudio/src/Android.bp
@@ -6,6 +6,7 @@
         "client",
         "core",
         "fifo",
+        "flowgraph",
         "legacy",
         "utility",
     ],
@@ -42,6 +43,16 @@
         "binding/RingBufferParcelable.cpp",
         "binding/SharedMemoryParcelable.cpp",
         "binding/SharedRegionParcelable.cpp",
+        "flowgraph/AudioProcessorBase.cpp",
+        "flowgraph/ClipToRange.cpp",
+        "flowgraph/MonoToMultiConverter.cpp",
+        "flowgraph/RampLinear.cpp",
+        "flowgraph/SinkFloat.cpp",
+        "flowgraph/SinkI16.cpp",
+        "flowgraph/SinkI24.cpp",
+        "flowgraph/SourceFloat.cpp",
+        "flowgraph/SourceI16.cpp",
+        "flowgraph/SourceI24.cpp",
     ],
 
     cflags: [