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1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 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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82 }; | 82 }; |
83 | 83 |
84 HighPassFilterImpl::HighPassFilterImpl(rtc::CriticalSection* crit) | 84 HighPassFilterImpl::HighPassFilterImpl(rtc::CriticalSection* crit) |
85 : crit_(crit) { | 85 : crit_(crit) { |
86 RTC_DCHECK(crit_); | 86 RTC_DCHECK(crit_); |
87 } | 87 } |
88 | 88 |
89 HighPassFilterImpl::~HighPassFilterImpl() {} | 89 HighPassFilterImpl::~HighPassFilterImpl() {} |
90 | 90 |
91 void HighPassFilterImpl::Initialize(int channels, int sample_rate_hz) { | 91 void HighPassFilterImpl::Initialize(int channels, int sample_rate_hz) { |
| 92 RTC_DCHECK_LE(0, channels); |
92 std::vector<rtc::scoped_ptr<BiquadFilter>> new_filters(channels); | 93 std::vector<rtc::scoped_ptr<BiquadFilter>> new_filters(channels); |
93 for (int i = 0; i < channels; i++) { | 94 for (int i = 0; i < channels; i++) { |
94 new_filters[i].reset(new BiquadFilter(sample_rate_hz)); | 95 new_filters[i].reset(new BiquadFilter(sample_rate_hz)); |
95 } | 96 } |
96 rtc::CritScope cs(crit_); | 97 rtc::CritScope cs(crit_); |
97 filters_.swap(new_filters); | 98 filters_.swap(new_filters); |
98 } | 99 } |
99 | 100 |
100 void HighPassFilterImpl::ProcessCaptureAudio(AudioBuffer* audio) { | 101 void HighPassFilterImpl::ProcessCaptureAudio(AudioBuffer* audio) { |
| 102 RTC_DCHECK(audio); |
101 rtc::CritScope cs(crit_); | 103 rtc::CritScope cs(crit_); |
102 if (!enabled_) { | 104 if (!enabled_) { |
103 return; | 105 return; |
104 } | 106 } |
105 | 107 |
106 RTC_DCHECK_GE(160u, audio->num_frames_per_band()); | 108 RTC_DCHECK_GE(160u, audio->num_frames_per_band()); |
107 RTC_DCHECK_EQ(filters_.size(), static_cast<size_t>(audio->num_channels())); | 109 RTC_DCHECK_EQ(filters_.size(), static_cast<size_t>(audio->num_channels())); |
108 for (size_t i = 0; i < filters_.size(); i++) { | 110 for (size_t i = 0; i < filters_.size(); i++) { |
109 filters_[i]->Process(audio->split_bands(i)[kBand0To8kHz], | 111 filters_[i]->Process(audio->split_bands(i)[kBand0To8kHz], |
110 audio->num_frames_per_band()); | 112 audio->num_frames_per_band()); |
111 } | 113 } |
112 } | 114 } |
113 | 115 |
114 int HighPassFilterImpl::Enable(bool enable) { | 116 int HighPassFilterImpl::Enable(bool enable) { |
115 rtc::CritScope cs(crit_); | 117 rtc::CritScope cs(crit_); |
116 enabled_ = enable; | 118 enabled_ = enable; |
117 return AudioProcessing::kNoError; | 119 return AudioProcessing::kNoError; |
118 } | 120 } |
119 | 121 |
120 bool HighPassFilterImpl::is_enabled() const { | 122 bool HighPassFilterImpl::is_enabled() const { |
121 rtc::CritScope cs(crit_); | 123 rtc::CritScope cs(crit_); |
122 return enabled_; | 124 return enabled_; |
123 } | 125 } |
124 } // namespace webrtc | 126 } // namespace webrtc |
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