git-svn-id: http://webrtc.googlecode.com/svn/trunk@4 4adac7df-926f-26a2-2b94-8c16560cd09d

modules/audio_processing/main/source/level_estimator_impl.h

@@ -0,0 +1,55 @@
+/*
+ *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_MAIN_SOURCE_LEVEL_ESTIMATOR_IMPL_H_
+#define WEBRTC_MODULES_AUDIO_PROCESSING_MAIN_SOURCE_LEVEL_ESTIMATOR_IMPL_H_
+
+#include "audio_processing.h"
+#include "processing_component.h"
+
+namespace webrtc {
+class AudioProcessingImpl;
+class AudioBuffer;
+
+class LevelEstimatorImpl : public LevelEstimator,
+                           public ProcessingComponent {
+ public:
+  explicit LevelEstimatorImpl(const AudioProcessingImpl* apm);
+  virtual ~LevelEstimatorImpl();
+
+  int AnalyzeReverseStream(AudioBuffer* audio);
+  int ProcessCaptureAudio(AudioBuffer* audio);
+
+  // LevelEstimator implementation.
+  virtual bool is_enabled() const;
+
+  // ProcessingComponent implementation.
+  virtual int get_version(char* version, int version_len_bytes) const;
+
+ private:
+  // LevelEstimator implementation.
+  virtual int Enable(bool enable);
+  virtual int GetMetrics(Metrics* metrics, Metrics* reverse_metrics);
+
+  // ProcessingComponent implementation.
+  virtual void* CreateHandle() const;
+  virtual int InitializeHandle(void* handle) const;
+  //virtual int InitializeHandles(
+  //    const std::vector<void*>& handles) const;
+  virtual int ConfigureHandle(void* handle) const;
+  virtual int DestroyHandle(void* handle) const;
+  virtual int num_handles_required() const;
+  //virtual int TranslateError(int err) const;
+
+  const AudioProcessingImpl* apm_;
+};
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_AUDIO_PROCESSING_MAIN_SOURCE_LEVEL_ESTIMATOR_IMPL_H_