1 files changed, 32 insertions, 0 deletions
diff --git a/components/script/dom/webidls/AudioParam.webidl b/components/script/dom/webidls/AudioParam.webidl
new file mode 100644
index 00000000000..42f1012539c
--- /dev/null
+++ b/components/script/dom/webidls/AudioParam.webidl
@@ -0,0 +1,32 @@
+/* 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 https://mozilla.org/MPL/2.0/. */
+/*
+ * The origin of this IDL file is
+ * https://webaudio.github.io/web-audio-api/#dom-audioparam
+ */
+
+enum AutomationRate {
+  "a-rate",
+  "k-rate"
+};
+
+[Exposed=Window]
+interface AudioParam {
+             attribute float value;
+             attribute AutomationRate automationRate;
+    readonly attribute float defaultValue;
+    readonly attribute float minValue;
+    readonly attribute float maxValue;
+    [Throws] AudioParam setValueAtTime(float value, double startTime);
+    [Throws] AudioParam linearRampToValueAtTime(float value, double endTime);
+    [Throws] AudioParam exponentialRampToValueAtTime(float value, double endTime);
+    [Throws] AudioParam setTargetAtTime(float target,
+                               double startTime,
+                               float timeConstant);
+    [Throws] AudioParam setValueCurveAtTime(sequence<float> values,
+                                   double startTime,
+                                   double duration);
+    [Throws] AudioParam cancelScheduledValues(double cancelTime);
+    [Throws] AudioParam cancelAndHoldAtTime(double cancelTime);
+};