c20978e581
NOPRESUBMIT=True # cpplint errors that aren't caused by this CL. NOTRY=True NOTREECHECKS=True TBR=kwiberg@webrtc.org, kjellander@webrtc.org Bug: webrtc:7634 Change-Id: I3cca0fbaa807b563c95979cccd6d1bec32055f36 Reviewed-on: https://chromium-review.googlesource.com/562156 Commit-Queue: Edward Lemur <ehmaldonado@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#18919}
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
/*
|
|
* Copyright (c) 2017 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_MIXER_SINE_WAVE_GENERATOR_H_
|
|
#define WEBRTC_MODULES_AUDIO_MIXER_SINE_WAVE_GENERATOR_H_
|
|
|
|
#include "webrtc/modules/include/module_common_types.h"
|
|
#include "webrtc/rtc_base/checks.h"
|
|
|
|
namespace webrtc {
|
|
|
|
class SineWaveGenerator {
|
|
public:
|
|
SineWaveGenerator(float wave_frequency_hz, int16_t amplitude)
|
|
: wave_frequency_hz_(wave_frequency_hz), amplitude_(amplitude) {
|
|
RTC_DCHECK_GT(wave_frequency_hz, 0);
|
|
}
|
|
|
|
// Produces appropriate output based on frame->num_channels_,
|
|
// frame->sample_rate_hz_.
|
|
void GenerateNextFrame(AudioFrame* frame);
|
|
|
|
private:
|
|
float phase_ = 0.f;
|
|
const float wave_frequency_hz_;
|
|
const int16_t amplitude_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // WEBRTC_MODULES_AUDIO_MIXER_SINE_WAVE_GENERATOR_H_
|