AnalyserNode in script

components/script/dom/webidls/AnalyserNode.webidl

@@ -0,0 +1,28 @@
+/* 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/. */
+/*
+ * The origin of this IDL file is
+ * https://webaudio.github.io/web-audio-api/#analysernode
+ */
+
+dictionary AnalyserOptions : AudioNodeOptions {
+  unsigned long fftSize = 2048;
+  double maxDecibels = -30;
+  double minDecibels = -100;
+  double smoothingTimeConstant = 0.8;
+};
+
+[Exposed=Window,
+ Constructor (BaseAudioContext context, optional AnalyserOptions options)]
+interface AnalyserNode : AudioNode {
+  void getFloatFrequencyData (Float32Array array);
+  void getByteFrequencyData (Uint8Array array);
+  void getFloatTimeDomainData (Float32Array array);
+  void getByteTimeDomainData (Uint8Array array);
+  [SetterThrows] attribute unsigned long fftSize;
+  readonly attribute unsigned long frequencyBinCount;
+  [SetterThrows] attribute double minDecibels;
+  [SetterThrows] attribute double maxDecibels;
+  [SetterThrows] attribute double smoothingTimeConstant;
+};