753eada3aa
Corresponds to upstream commit 524e9b043e7e86fd72353b987c9d5f6a1ebf83e1 Update notes: * Pull in third party license file * Replace .gypi files with BUILD.gn to keep track of what changes upstream * Bunch of new filse pulled in as dependencies * Won't build yet due to changes needed on top of these
46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_BEAMFORMER_H_
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#define WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_BEAMFORMER_H_
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#include "webrtc/common_audio/channel_buffer.h"
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#include "webrtc/modules/audio_processing/beamformer/array_util.h"
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namespace webrtc {
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template<typename T>
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class Beamformer {
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public:
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virtual ~Beamformer() {}
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// Process one time-domain chunk of audio. The audio is expected to be split
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// into frequency bands inside the ChannelBuffer. The number of frames and
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// channels must correspond to the constructor parameters. The same
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// ChannelBuffer can be passed in as |input| and |output|.
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virtual void ProcessChunk(const ChannelBuffer<T>& input,
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ChannelBuffer<T>* output) = 0;
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// Sample rate corresponds to the lower band.
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// Needs to be called before the the Beamformer can be used.
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virtual void Initialize(int chunk_size_ms, int sample_rate_hz) = 0;
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// Indicates whether a given point is inside of the beam.
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virtual bool IsInBeam(const SphericalPointf& spherical_point) { return true; }
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// Returns true if the current data contains the target signal.
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// Which signals are considered "targets" is implementation dependent.
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virtual bool is_target_present() = 0;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_AUDIO_PROCESSING_BEAMFORMER_BEAMFORMER_H_
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