1 files changed, 112 insertions, 0 deletions
diff --git a/src/modules/audio_processing/processing_component.cc b/src/modules/audio_processing/processing_component.cc
new file mode 100644
index 0000000000..9ac125794c
--- /dev/null
+++ b/src/modules/audio_processing/processing_component.cc
@@ -0,0 +1,112 @@
+/*
+ *  Copyright (c) 2011 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.
+ */
+
+#include "processing_component.h"
+
+#include <cassert>
+
+#include "audio_processing_impl.h"
+
+namespace webrtc {
+
+ProcessingComponent::ProcessingComponent(const AudioProcessingImpl* apm)
+  : apm_(apm),
+    initialized_(false),
+    enabled_(false),
+    num_handles_(0) {}
+
+ProcessingComponent::~ProcessingComponent() {
+  assert(initialized_ == false);
+}
+
+int ProcessingComponent::Destroy() {
+  while (!handles_.empty()) {
+    DestroyHandle(handles_.back());
+    handles_.pop_back();
+  }
+  initialized_ = false;
+
+  return apm_->kNoError;
+}
+
+int ProcessingComponent::EnableComponent(bool enable) {
+  if (enable && !enabled_) {
+    enabled_ = enable; // Must be set before Initialize() is called.
+
+    int err = Initialize();
+    if (err != apm_->kNoError) {
+      enabled_ = false;
+      return err;
+    }
+  } else {
+    enabled_ = enable;
+  }
+
+  return apm_->kNoError;
+}
+
+bool ProcessingComponent::is_component_enabled() const {
+  return enabled_;
+}
+
+void* ProcessingComponent::handle(int index) const {
+  assert(index < num_handles_);
+  return handles_[index];
+}
+
+int ProcessingComponent::num_handles() const {
+  return num_handles_;
+}
+
+int ProcessingComponent::Initialize() {
+  if (!enabled_) {
+    return apm_->kNoError;
+  }
+
+  num_handles_ = num_handles_required();
+  if (num_handles_ > static_cast<int>(handles_.size())) {
+    handles_.resize(num_handles_, NULL);
+  }
+
+  assert(static_cast<int>(handles_.size()) >= num_handles_);
+  for (int i = 0; i < num_handles_; i++) {
+    if (handles_[i] == NULL) {
+      handles_[i] = CreateHandle();
+      if (handles_[i] == NULL) {
+        return apm_->kCreationFailedError;
+      }
+    }
+
+    int err = InitializeHandle(handles_[i]);
+    if (err != apm_->kNoError) {
+      return GetHandleError(handles_[i]);
+    }
+  }
+
+  initialized_ = true;
+  return Configure();
+}
+
+int ProcessingComponent::Configure() {
+  if (!initialized_) {
+    return apm_->kNoError;
+  }
+
+  assert(static_cast<int>(handles_.size()) >= num_handles_);
+  for (int i = 0; i < num_handles_; i++) {
+    int err = ConfigureHandle(handles_[i]);
+    if (err != apm_->kNoError) {
+      return GetHandleError(handles_[i]);
+    }
+  }
+
+  return apm_->kNoError;
+}
+}  // namespace webrtc