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..72d586338ce4454102c97ba01fae4b601bb704ef |
--- /dev/null |
+++ b/webrtc/voice_engine/audio_level.h |
@@ -0,0 +1,52 @@ |
+/* |
+ * Copyright (c) 2011 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_VOICE_ENGINE_AUDIO_LEVEL_H_ |
+#define WEBRTC_VOICE_ENGINE_AUDIO_LEVEL_H_ |
+ |
+#include "webrtc/base/criticalsection.h" |
+#include "webrtc/typedefs.h" |
+ |
+namespace webrtc { |
+ |
+class AudioFrame; |
+namespace voe { |
+ |
+class AudioLevel { |
+ public: |
+ AudioLevel(); |
+ virtual ~AudioLevel(); |
the sun
2017/03/06 15:53:45
Remove virtual
hlundin-webrtc
2017/03/07 09:35:57
Done.
|
+ |
+ // Called on "API thread(s)" from APIs like VoEBase::CreateChannel(), |
+ // VoEBase::StopSend(), VoEVolumeControl::GetSpeechOutputLevel(). |
+ int8_t Level() const; |
+ int16_t LevelFullRange() const; |
+ void Clear(); |
+ |
+ // Called on a native capture audio thread (platform dependent) from the |
+ // AudioTransport::RecordedDataIsAvailable() callback. |
+ // In Chrome, this method is called on the AudioInputDevice thread. |
+ void ComputeLevel(const AudioFrame& audioFrame); |
+ |
+ private: |
+ enum { kUpdateFrequency = 10 }; |
+ |
+ rtc::CriticalSection crit_sect_; |
+ |
+ int16_t abs_max_; |
+ int16_t count_; |
+ int8_t current_level_; |
+ int16_t current_level_full_range_; |
+}; |
+ |
+} // namespace voe |
+} // namespace webrtc |
+ |
+#endif // WEBRTC_VOICE_ENGINE_AUDIO_LEVEL_H_ |