mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-19 14:37:32 +00:00
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2014 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_AUDIO_CLASSIFIER_H_
|
||
|
|
#define WEBRTC_MODULES_AUDIO_CODING_NETEQ_AUDIO_CLASSIFIER_H_
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
#include "celt.h"
|
||
|
|
#include "analysis.h"
|
||
|
|
#include "opus_private.h"
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "webrtc/system_wrappers/interface/scoped_ptr.h"
|
||
|
|
#include "webrtc/typedefs.h"
|
||
|
|
|
||
|
|
namespace webrtc {
|
||
|
|
|
||
|
|
// This class provides a speech/music classification and is a wrapper over the
|
||
|
|
// Opus classifier. It currently only supports 48 kHz mono or stereo with a
|
||
|
|
// frame size of 20 ms.
|
||
|
|
|
||
|
|
class AudioClassifier {
|
||
|
|
public:
|
||
|
|
AudioClassifier();
|
||
|
|
virtual ~AudioClassifier();
|
||
|
|
|
||
|
|
// Classifies one frame of audio data in input,
|
||
|
|
// input_length : must be channels * 960;
|
||
|
|
// channels : must be 1 (mono) or 2 (stereo).
|
||
|
|
bool Analysis(const int16_t* input, int input_length, int channels);
|
||
|
|
|
||
|
|
// Gets the current classification : true = music, false = speech.
|
||
|
|
virtual bool is_music() const { return is_music_; }
|
||
|
|
|
||
|
|
// Gets the current music probability.
|
||
|
|
float music_probability() const { return music_probability_; }
|
||
|
|
|
||
|
|
private:
|
||
|
|
AnalysisInfo analysis_info_;
|
||
|
|
bool is_music_;
|
||
|
|
float music_probability_;
|
||
|
|
const CELTMode* celt_mode_;
|
||
|
|
TonalityAnalysisState analysis_state_;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace webrtc
|
||
|
|
|
||
|
|
#endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_AUDIO_CLASSIFIER_H_
|