1 files changed, 56 insertions, 0 deletions
diff --git a/dom/media/webaudio/IIRFilterNode.h b/dom/media/webaudio/IIRFilterNode.h
new file mode 100644
index 0000000000..d79f87f632
--- /dev/null
+++ b/dom/media/webaudio/IIRFilterNode.h
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef IIRFilterNode_h_
+#define IIRFilterNode_h_
+
+#include "AudioNode.h"
+#include "AudioParam.h"
+#include "mozilla/dom/IIRFilterNodeBinding.h"
+
+namespace mozilla::dom {
+
+class AudioContext;
+struct IIRFilterOptions;
+
+class IIRFilterNode final : public AudioNode {
+ public:
+  static already_AddRefed<IIRFilterNode> Create(
+      AudioContext& aAudioContext, const IIRFilterOptions& aOptions,
+      ErrorResult& aRv);
+
+  NS_INLINE_DECL_REFCOUNTING_INHERITED(IIRFilterNode, AudioNode)
+
+  static already_AddRefed<IIRFilterNode> Constructor(
+      const GlobalObject& aGlobal, AudioContext& aAudioContext,
+      const IIRFilterOptions& aOptions, ErrorResult& aRv) {
+    return Create(aAudioContext, aOptions, aRv);
+  }
+
+  JSObject* WrapObject(JSContext* aCx,
+                       JS::Handle<JSObject*> aGivenProto) override;
+
+  void GetFrequencyResponse(const Float32Array& aFrequencyHz,
+                            const Float32Array& aMagResponse,
+                            const Float32Array& aPhaseResponse);
+
+  const char* NodeType() const override { return "IIRFilterNode"; }
+
+  size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
+  size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
+
+ private:
+  IIRFilterNode(AudioContext* aContext, const Sequence<double>& aFeedforward,
+                const Sequence<double>& aFeedback);
+  ~IIRFilterNode() = default;
+
+  nsTArray<double> mFeedback;
+  nsTArray<double> mFeedforward;
+};
+
+}  // namespace mozilla::dom
+
+#endif