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}
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
/*
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* Copyright (c) 2011 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_VOICE_ENGINE_AUDIO_LEVEL_H_
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#define WEBRTC_VOICE_ENGINE_AUDIO_LEVEL_H_
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#include "webrtc/rtc_base/criticalsection.h"
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#include "webrtc/typedefs.h"
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namespace webrtc {
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class AudioFrame;
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namespace voe {
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class AudioLevel {
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public:
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AudioLevel();
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~AudioLevel();
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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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// 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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private:
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enum { kUpdateFrequency = 10 };
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rtc::CriticalSection crit_sect_;
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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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} // namespace voe
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} // namespace webrtc
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#endif // WEBRTC_VOICE_ENGINE_AUDIO_LEVEL_H_
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