Add support for level measurements in Visualizer

New commands to set a measurement mode and perform peak + RMS
 measurements.

Bug 8413913

Change-Id: Ib25254065c79d365ebb34f9dc9caa0490e2d300d

1 files changed, 9 insertions, 0 deletions

diff --git a/include/media/Visualizer.h b/include/media/Visualizer.h
index e429263..6167dd6 100644
--- a/include/media/Visualizer.h
+++ b/include/media/Visualizer.h
@@ -114,6 +114,14 @@ public:
     status_t setScalingMode(uint32_t mode);
     uint32_t getScalingMode() { return mScalingMode; }
 
+    // set which measurements are done on the audio buffers processed by the effect.
+    // valid measurements (mask): MEASUREMENT_MODE_PEAK_RMS
+    status_t setMeasurementMode(uint32_t mode);
+    uint32_t getMeasurementMode() { return mMeasurementMode; }
+
+    // return a set of int32_t measurements
+    status_t getIntMeasurements(uint32_t type, uint32_t number, int32_t *measurements);
+
     // return a capture in PCM 8 bit unsigned format. The size of the capture is equal to
     // getCaptureSize()
     status_t getWaveForm(uint8_t *waveform);
@@ -156,6 +164,7 @@ private:
     uint32_t mCaptureSize;
     uint32_t mSampleRate;
     uint32_t mScalingMode;
+    uint32_t mMeasurementMode;
     capture_cbk_t mCaptureCallBack;
     void *mCaptureCbkUser;
     sp<CaptureThread> mCaptureThread;