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37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
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/*
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* Copyright (c) 2018 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 MODULES_AUDIO_PROCESSING_INCLUDE_AUDIO_GENERATOR_H_
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#define MODULES_AUDIO_PROCESSING_INCLUDE_AUDIO_GENERATOR_H_
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#include "modules/audio_processing/include/audio_frame_view.h"
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namespace webrtc {
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// This class is used as input sink for the APM, for diagnostic purposes.
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// Generates an infinite audio signal, [-1, 1] floating point values, in frames
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// of fixed channel count and sample rate.
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class AudioGenerator {
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public:
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virtual ~AudioGenerator() {}
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// Fill |audio| with the next samples of the audio signal.
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virtual void FillFrame(AudioFrameView<float> audio) = 0;
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// Return the number of channels output by the AudioGenerator.
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virtual size_t NumChannels() = 0;
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// Return the sample rate output by the AudioGenerator.
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virtual size_t SampleRateHz() = 0;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_INCLUDE_AUDIO_GENERATOR_H_
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