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1 /* | 1 /* |
2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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32 } | 32 } |
33 | 33 |
34 VoiceActivityDetector::~VoiceActivityDetector() = default; | 34 VoiceActivityDetector::~VoiceActivityDetector() = default; |
35 | 35 |
36 // Because ISAC has a different chunk length, it updates | 36 // Because ISAC has a different chunk length, it updates |
37 // |chunkwise_voice_probabilities_| and |chunkwise_rms_| when there is new data. | 37 // |chunkwise_voice_probabilities_| and |chunkwise_rms_| when there is new data. |
38 // Otherwise it clears them. | 38 // Otherwise it clears them. |
39 void VoiceActivityDetector::ProcessChunk(const int16_t* audio, | 39 void VoiceActivityDetector::ProcessChunk(const int16_t* audio, |
40 size_t length, | 40 size_t length, |
41 int sample_rate_hz) { | 41 int sample_rate_hz) { |
42 RTC_DCHECK_EQ(static_cast<int>(length), sample_rate_hz / 100); | 42 RTC_DCHECK_EQ(length, sample_rate_hz / 100); |
43 RTC_DCHECK_LE(length, kMaxLength); | 43 RTC_DCHECK_LE(length, kMaxLength); |
44 // Resample to the required rate. | 44 // Resample to the required rate. |
45 const int16_t* resampled_ptr = audio; | 45 const int16_t* resampled_ptr = audio; |
46 if (sample_rate_hz != kSampleRateHz) { | 46 if (sample_rate_hz != kSampleRateHz) { |
47 RTC_CHECK_EQ( | 47 RTC_CHECK_EQ( |
48 resampler_.ResetIfNeeded(sample_rate_hz, kSampleRateHz, kNumChannels), | 48 resampler_.ResetIfNeeded(sample_rate_hz, kSampleRateHz, kNumChannels), |
49 0); | 49 0); |
50 resampler_.Push(audio, length, resampled_, kLength10Ms, length); | 50 resampler_.Push(audio, length, resampled_, kLength10Ms, length); |
51 resampled_ptr = resampled_; | 51 resampled_ptr = resampled_; |
52 } | 52 } |
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78 0); | 78 0); |
79 RTC_CHECK_GE(pitch_based_vad_.VoicingProbability( | 79 RTC_CHECK_GE(pitch_based_vad_.VoicingProbability( |
80 features_, &chunkwise_voice_probabilities_[0]), | 80 features_, &chunkwise_voice_probabilities_[0]), |
81 0); | 81 0); |
82 } | 82 } |
83 last_voice_probability_ = chunkwise_voice_probabilities_.back(); | 83 last_voice_probability_ = chunkwise_voice_probabilities_.back(); |
84 } | 84 } |
85 } | 85 } |
86 | 86 |
87 } // namespace webrtc | 87 } // namespace webrtc |
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