1 /* 2 * Copyright (c) 2011 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 11 #include "processing_component.h" 12 13 #include <cassert> 14 15 #include "audio_processing_impl.h" 16 17 namespace webrtc { 18 19 ProcessingComponent::ProcessingComponent(const AudioProcessingImpl* apm) 20 : apm_(apm), 21 initialized_(false), 22 enabled_(false), 23 num_handles_(0) {} 24 25 ProcessingComponent::~ProcessingComponent() { 26 assert(initialized_ == false); 27 } 28 29 int ProcessingComponent::Destroy() { 30 while (!handles_.empty()) { 31 DestroyHandle(handles_.back()); 32 handles_.pop_back(); 33 } 34 initialized_ = false; 35 36 return apm_->kNoError; 37 } 38 39 int ProcessingComponent::EnableComponent(bool enable) { 40 if (enable && !enabled_) { 41 enabled_ = enable; // Must be set before Initialize() is called. 42 43 int err = Initialize(); 44 if (err != apm_->kNoError) { 45 enabled_ = false; 46 return err; 47 } 48 } else { 49 enabled_ = enable; 50 } 51 52 return apm_->kNoError; 53 } 54 55 bool ProcessingComponent::is_component_enabled() const { 56 return enabled_; 57 } 58 59 void* ProcessingComponent::handle(int index) const { 60 assert(index < num_handles_); 61 return handles_[index]; 62 } 63 64 int ProcessingComponent::num_handles() const { 65 return num_handles_; 66 } 67 68 int ProcessingComponent::Initialize() { 69 if (!enabled_) { 70 return apm_->kNoError; 71 } 72 73 num_handles_ = num_handles_required(); 74 if (num_handles_ > static_cast<int>(handles_.size())) { 75 handles_.resize(num_handles_, NULL); 76 } 77 78 assert(static_cast<int>(handles_.size()) >= num_handles_); 79 for (int i = 0; i < num_handles_; i++) { 80 if (handles_[i] == NULL) { 81 handles_[i] = CreateHandle(); 82 if (handles_[i] == NULL) { 83 return apm_->kCreationFailedError; 84 } 85 } 86 87 int err = InitializeHandle(handles_[i]); 88 if (err != apm_->kNoError) { 89 return GetHandleError(handles_[i]); 90 } 91 } 92 93 initialized_ = true; 94 return Configure(); 95 } 96 97 int ProcessingComponent::Configure() { 98 if (!initialized_) { 99 return apm_->kNoError; 100 } 101 102 assert(static_cast<int>(handles_.size()) >= num_handles_); 103 for (int i = 0; i < num_handles_; i++) { 104 int err = ConfigureHandle(handles_[i]); 105 if (err != apm_->kNoError) { 106 return GetHandleError(handles_[i]); 107 } 108 } 109 110 return apm_->kNoError; 111 } 112 } // namespace webrtc 113
