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| 1 /* |
| 2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
| 3 * |
| 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 |
| 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ |
| 10 #include "webrtc/modules/audio_processing/aec3/echo_canceller3.h" |
| 11 |
| 12 #include "webrtc/base/atomicops.h" |
| 13 #include "webrtc/system_wrappers/include/logging.h" |
| 14 |
| 15 namespace webrtc { |
| 16 |
| 17 int EchoCanceller3::instance_count_ = 0; |
| 18 |
| 19 EchoCanceller3::EchoCanceller3(int sample_rate_hz, bool use_anti_hum_filter) { |
| 20 int band_sample_rate_hz = (sample_rate_hz == 8000 ? sample_rate_hz : 16000); |
| 21 frame_length_ = rtc::CheckedDivExact(band_sample_rate_hz, 100); |
| 22 |
| 23 LOG(LS_INFO) << "AEC3 created : " |
| 24 << "{ instance_count: " << instance_count_ << "}"; |
| 25 instance_count_ = rtc::AtomicOps::Increment(&instance_count_); |
| 26 } |
| 27 |
| 28 EchoCanceller3::~EchoCanceller3() = default; |
| 29 |
| 30 bool EchoCanceller3::AnalyzeRender(AudioBuffer* render) { |
| 31 RTC_DCHECK_EQ(1u, render->num_channels()); |
| 32 RTC_DCHECK_EQ(frame_length_, render->num_frames_per_band()); |
| 33 return true; |
| 34 } |
| 35 |
| 36 void EchoCanceller3::AnalyzeCapture(AudioBuffer* capture) {} |
| 37 |
| 38 void EchoCanceller3::ProcessCapture(AudioBuffer* capture, |
| 39 bool known_echo_path_change) { |
| 40 RTC_DCHECK_EQ(1u, capture->num_channels()); |
| 41 RTC_DCHECK_EQ(frame_length_, capture->num_frames_per_band()); |
| 42 } |
| 43 |
| 44 std::string EchoCanceller3::ToString( |
| 45 const AudioProcessing::Config::EchoCanceller3& config) { |
| 46 std::stringstream ss; |
| 47 ss << "{" |
| 48 << "enabled: " << (config.enabled ? "true" : "false") << "}"; |
| 49 return ss.str(); |
| 50 } |
| 51 |
| 52 bool EchoCanceller3::Validate( |
| 53 const AudioProcessing::Config::EchoCanceller3& config) { |
| 54 return true; |
| 55 } |
| 56 |
| 57 } // namespace webrtc |
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