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diff --git a/webrtc/modules/audio_processing/beamformer/beamformer.h b/webrtc/modules/audio_processing/beamformer/beamformer.h
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-/*
- * Copyright (c) 2015 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_BEAMFORMER_BEAMFORMER_H_
-#define WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_BEAMFORMER_H_
-
-#include "webrtc/common_audio/channel_buffer.h"
-#include "webrtc/modules/audio_processing/beamformer/array_util.h"
-
-namespace webrtc {
-
-template<typename T>
-class Beamformer {
- public:
- virtual ~Beamformer() {}
-
- // Process one time-domain chunk of audio. The audio is expected to be split
- // into frequency bands inside the ChannelBuffer. The number of frames and
- // channels must correspond to the constructor parameters. The same
- // ChannelBuffer can be passed in as |input| and |output|.
- virtual void ProcessChunk(const ChannelBuffer<T>& input,
- ChannelBuffer<T>* output) = 0;
-
- // Sample rate corresponds to the lower band.
- // Needs to be called before the the Beamformer can be used.
- virtual void Initialize(int chunk_size_ms, int sample_rate_hz) = 0;
-
- // Aim the beamformer at a point in space.
- virtual void AimAt(const SphericalPointf& spherical_point) = 0;
-
- // Indicates whether a given point is inside of the beam.
- virtual bool IsInBeam(const SphericalPointf& spherical_point) { return true; }
-
- // Returns true if the current data contains the target signal.
- // Which signals are considered "targets" is implementation dependent.
- virtual bool is_target_present() = 0;
-};
-
-} // namespace webrtc
-
-#endif // WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_BEAMFORMER_H_