diff --git a/include/camera/ICamera.h b/include/camera/ICamera.h
index 8bceea5..b69e075 100644
--- a/include/camera/ICamera.h
+++ b/include/camera/ICamera.h
@@ -90,6 +90,15 @@
 
     // send command to camera driver
     virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0;
+
+    // return the total number of available video buffers
+    virtual int32_t         getNumberOfVideoBuffers() const  = 0;
+
+    // return the individual video buffer corresponding to the given index.
+    virtual sp<IMemory>     getVideoBuffer(int32_t index) const = 0;
+
+    // tell the camera hal to store meta data or real YUV data in video buffers.
+    virtual status_t        storeMetaDataInBuffers(bool enabled) = 0;
 };
 
 // ----------------------------------------------------------------------------