Implement android.media.AudioManager.getProperty()

Bug: 6635041
Change-Id: I3386a4a6c226bc4eceaf65556119e4fb15f73224
diff --git a/include/media/IAudioFlinger.h b/include/media/IAudioFlinger.h
index bdd0142..5170a87 100644
--- a/include/media/IAudioFlinger.h
+++ b/include/media/IAudioFlinger.h
@@ -187,6 +187,13 @@
                                     audio_io_handle_t dstOutput) = 0;
 
     virtual audio_module_handle_t loadHwModule(const char *name) = 0;
+
+    // helpers for android.media.AudioManager.getProperty(), see description there for meaning
+    // FIXME move these APIs to AudioPolicy to permit a more accurate implementation
+    // that looks on primary device for a stream with fast flag, primary flag, or first one.
+    virtual int32_t getPrimaryOutputSamplingRate() = 0;
+    virtual int32_t getPrimaryOutputFrameCount() = 0;
+
 };