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/*
* Copyright (c) 2013 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_CODING_NETEQ_POST_DECODE_VAD_H_
#define WEBRTC_MODULES_AUDIO_CODING_NETEQ_POST_DECODE_VAD_H_
#include <string> // size_t
#include "webrtc/base/constructormagic.h"
#include "webrtc/common_audio/vad/include/webrtc_vad.h"
#include "webrtc/common_types.h" // NULL
#include "webrtc/modules/audio_coding/neteq/defines.h"
#include "webrtc/modules/audio_coding/neteq/interface/audio_decoder.h"
#include "webrtc/modules/audio_coding/neteq/packet.h"
#include "webrtc/typedefs.h"
namespace webrtc {
class PostDecodeVad {
public:
PostDecodeVad()
: enabled_(false),
running_(false),
active_speech_(true),
sid_interval_counter_(0),
vad_instance_(NULL) {
}
virtual ~PostDecodeVad();
// Enables post-decode VAD.
void Enable();
// Disables post-decode VAD.
void Disable();
// Initializes post-decode VAD.
void Init();
// Updates post-decode VAD with the audio data in |signal| having |length|
// samples. The data is of type |speech_type|, at the sample rate |fs_hz|.
void Update(int16_t* signal, int length,
AudioDecoder::SpeechType speech_type, bool sid_frame, int fs_hz);
// Accessors.
bool enabled() const { return enabled_; }
bool running() const { return running_; }
bool active_speech() const { return active_speech_; }
private:
static const int kVadMode = 0; // Sets aggressiveness to "Normal".
// Number of Update() calls without CNG/SID before re-enabling VAD.
static const int kVadAutoEnable = 3000;
bool enabled_;
bool running_;
bool active_speech_;
int sid_interval_counter_;
::VadInst* vad_instance_;
DISALLOW_COPY_AND_ASSIGN(PostDecodeVad);
};
} // namespace webrtc
#endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_POST_DECODE_VAD_H_
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