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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_BASE_AUDIO_PROCESSING_H_
#define MEDIA_BASE_AUDIO_PROCESSING_H_
#include <string>
#include "base/files/file.h"
#include "base/time/time.h"
#include "base/unguessable_token.h"
#include "media/base/media_export.h"
namespace media {
enum class AutomaticGainControlType {
kDisabled,
kDefault,
kExperimental,
kHybridExperimental
};
enum class EchoCancellationType { kDisabled, kAec3, kSystemAec };
enum class NoiseSuppressionType { kDisabled, kDefault, kExperimental };
struct MEDIA_EXPORT AudioProcessingSettings {
EchoCancellationType echo_cancellation = EchoCancellationType::kDisabled;
NoiseSuppressionType noise_suppression = NoiseSuppressionType::kDisabled;
AutomaticGainControlType automatic_gain_control =
AutomaticGainControlType::kDisabled;
bool high_pass_filter = false;
bool typing_detection = false;
bool stereo_mirroring = false;
bool operator==(const AudioProcessingSettings& b) const {
return echo_cancellation == b.echo_cancellation &&
noise_suppression == b.noise_suppression &&
automatic_gain_control == b.automatic_gain_control &&
high_pass_filter == b.high_pass_filter &&
typing_detection == b.typing_detection &&
stereo_mirroring == b.stereo_mirroring;
}
// Indicates whether WebRTC will be required to perform the audio processing.
bool requires_apm() const {
return echo_cancellation == EchoCancellationType::kAec3 ||
noise_suppression != NoiseSuppressionType::kDisabled ||
automatic_gain_control != AutomaticGainControlType::kDisabled ||
high_pass_filter || typing_detection || stereo_mirroring;
}
// Stringifies the settings for human-readable logging.
std::string ToString() const;
};
} // namespace media
#endif // MEDIA_BASE_AUDIO_PROCESSING_H_
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