| Index: webrtc/voice_engine/audio_level.h
|
| diff --git a/webrtc/voice_engine/audio_level.h b/webrtc/voice_engine/audio_level.h
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..50409501e73ed5f6c8e32a6a52b152fd865c5e86
|
| --- /dev/null
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| +++ b/webrtc/voice_engine/audio_level.h
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| @@ -0,0 +1,52 @@
|
| +/*
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| + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
|
| + *
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| + * 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_VOICE_ENGINE_AUDIO_LEVEL_H_
|
| +#define WEBRTC_VOICE_ENGINE_AUDIO_LEVEL_H_
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| +
|
| +#include "webrtc/base/criticalsection.h"
|
| +#include "webrtc/typedefs.h"
|
| +
|
| +namespace webrtc {
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| +
|
| +class AudioFrame;
|
| +namespace voe {
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| +
|
| +class AudioLevel {
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| + public:
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| + AudioLevel();
|
| + ~AudioLevel();
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| +
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| + // Called on "API thread(s)" from APIs like VoEBase::CreateChannel(),
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| + // VoEBase::StopSend(), VoEVolumeControl::GetSpeechOutputLevel().
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| + int8_t Level() const;
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| + int16_t LevelFullRange() const;
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| + void Clear();
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| +
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| + // Called on a native capture audio thread (platform dependent) from the
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| + // AudioTransport::RecordedDataIsAvailable() callback.
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| + // In Chrome, this method is called on the AudioInputDevice thread.
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| + void ComputeLevel(const AudioFrame& audioFrame);
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| +
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| + private:
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| + enum { kUpdateFrequency = 10 };
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| +
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| + rtc::CriticalSection crit_sect_;
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| +
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| + int16_t abs_max_;
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| + int16_t count_;
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| + int8_t current_level_;
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| + int16_t current_level_full_range_;
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| +};
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| +
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| +} // namespace voe
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| +} // namespace webrtc
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| +
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| +#endif // WEBRTC_VOICE_ENGINE_AUDIO_LEVEL_H_
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|
|