1 files changed, 27 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/processors/input-length-processor.js b/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/processors/input-length-processor.js
new file mode 100644
index 0000000000..be485f03e8
--- /dev/null
+++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/processors/input-length-processor.js
@@ -0,0 +1,27 @@
+/**
+ * @class InputLengthProcessor
+ * @extends AudioWorkletProcessor
+ *
+ * This processor class just sets the output to the length of the
+ * input array for verifying that the input length changes when the
+ * input is disconnected.
+ */
+class InputLengthProcessor extends AudioWorkletProcessor {
+  constructor() {
+    super();
+  }
+
+  process(inputs, outputs, parameters) {
+    let input = inputs[0];
+    let output = outputs[0];
+
+    // Set output channel to the length of the input channel array.
+    // If the input is unconnected, set the value to zero.
+    const fillValue = input.length > 0 ? input[0].length : 0;
+    output[0].fill(fillValue);
+
+    return true;
+  }
+}
+
+registerProcessor('input-length-processor', InputLengthProcessor);