1 files changed, 71 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webcodecs/audio-decoder.crossOriginIsolated.https.any.js b/testing/web-platform/tests/webcodecs/audio-decoder.crossOriginIsolated.https.any.js
new file mode 100644
index 0000000000..17009e0118
--- /dev/null
+++ b/testing/web-platform/tests/webcodecs/audio-decoder.crossOriginIsolated.https.any.js
@@ -0,0 +1,71 @@
+// META: global=window,dedicatedworker
+// META: script=/webcodecs/utils.js
+
+const testData = {
+  src: 'sfx-aac.mp4',
+  config: {
+    codec: 'mp4a.40.2',
+    sampleRate: 48000,
+    numberOfChannels: 1,
+    description: {offset: 2552, size: 5},
+  }
+};
+
+// Create a view of an ArrayBuffer.
+function view(buffer, {offset, size}) {
+  return new Uint8Array(buffer, offset, size);
+}
+
+function testSharedArrayBufferDescription(t, useView) {
+  const data = testData;
+
+  // Don't run test if the codec is not supported.
+  assert_equals("function", typeof AudioDecoder.isConfigSupported);
+  let supported = false;
+  return AudioDecoder
+      .isConfigSupported({
+        codec: data.config.codec,
+        sampleRate: data.config.sampleRate,
+        numberOfChannels: data.config.numberOfChannels
+      })
+      .catch(_ => {
+        assert_implements_optional(false, data.config.codec + ' unsupported');
+      })
+      .then(support => {
+        supported = support.supported;
+        assert_implements_optional(
+            supported, data.config.codec + ' unsupported');
+        return fetch(data.src);
+      })
+      .then(response => {
+        return response.arrayBuffer();
+      })
+      .then(buf => {
+        config = {...data.config};
+        if (data.config.description) {
+          let desc = new SharedArrayBuffer(data.config.description.size);
+          let descView = new Uint8Array(desc);
+          descView.set(view(buf, data.config.description));
+          config.description = useView ? descView : desc;
+        }
+
+        // Support was verified above, so the description shouldn't change
+        // that.
+        return AudioDecoder.isConfigSupported(config);
+      })
+      .then(support => {
+        assert_true(support.supported);
+
+        const decoder = new AudioDecoder(getDefaultCodecInit(t));
+        decoder.configure(config);
+        assert_equals(decoder.state, 'configured', 'state');
+      });
+}
+
+promise_test(t => {
+  return testSharedArrayBufferDescription(t, /*useView=*/ false);
+}, 'Test isConfigSupported() and configure() using a SharedArrayBuffer');
+
+promise_test(t => {
+  return testSharedArrayBufferDescription(t, /*useView=*/ true);
+}, 'Test isConfigSupported() and configure() using a Uint8Array(SharedArrayBuffer)');