1 files changed, 119 insertions, 0 deletions
diff --git a/dom/media/test/browser/head.js b/dom/media/test/browser/head.js
new file mode 100644
index 0000000000..7ef578a804
--- /dev/null
+++ b/dom/media/test/browser/head.js
@@ -0,0 +1,119 @@
+"use strict";
+
+/* import-globals-from ../eme_standalone.js */
+
+// Opens a tab containing a blank page, returns a promise that will resolve
+// to that tab.
+function openTab() {
+  const emptyPageUri =
+    "https://example.com/browser/dom/media/test/browser/file_empty_page.html";
+  return BrowserTestUtils.openNewForegroundTab(window.gBrowser, emptyPageUri);
+}
+
+// Creates and configures a video element for non-MSE playback in `tab`. Does not
+// start playback for the element. Returns a promise that will resolve once
+// the element is setup and ready for playback.
+function loadVideo(tab) {
+  return SpecialPowers.spawn(tab.linkedBrowser, [], async _ => {
+    let video = content.document.createElement("video");
+    video.id = "media";
+    content.document.body.appendChild(video);
+
+    video.src = "gizmo.mp4";
+    video.load();
+
+    info(`waiting 'loadeddata' event to ensure playback is ready`);
+    await new Promise(r => (video.onloadeddata = r));
+  });
+}
+
+// Creates and configures a video element for MSE playback in `tab`. Does not
+// start playback for the element. Returns a promise that will resolve once
+// the element is setup and ready for playback.
+function loadMseVideo(tab) {
+  return SpecialPowers.spawn(tab.linkedBrowser, [], async _ => {
+    async function once(target, name) {
+      return new Promise(r => target.addEventListener(name, r, { once: true }));
+    }
+
+    let video = content.document.createElement("video");
+    video.id = "media";
+    content.document.body.appendChild(video);
+
+    info(`starting setup MSE`);
+    const ms = new content.wrappedJSObject.MediaSource();
+    video.src = content.wrappedJSObject.URL.createObjectURL(ms);
+    await once(ms, "sourceopen");
+    const sb = ms.addSourceBuffer("video/mp4");
+    const videoFile = "bipbop2s.mp4";
+    let fetchResponse = await content.fetch(videoFile);
+    sb.appendBuffer(await fetchResponse.arrayBuffer());
+    await once(sb, "updateend");
+    ms.endOfStream();
+    await once(ms, "sourceended");
+
+    info(`waiting 'loadeddata' event to ensure playback is ready`);
+    await once(video, "loadeddata");
+  });
+}
+
+// Creates and configures a video element for EME playback in `tab`. Does not
+// start playback for the element. Returns a promise that will resolve once
+// the element is setup and ready for playback.
+function loadEmeVideo(tab) {
+  const emeHelperUri =
+    gTestPath.substr(0, gTestPath.lastIndexOf("/")) + "/eme_standalone.js";
+  return SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [emeHelperUri],
+    async _emeHelperUri => {
+      async function once(target, name) {
+        return new Promise(r =>
+          target.addEventListener(name, r, { once: true })
+        );
+      }
+
+      // Helper to clone data into content so the EME helper can use the data.
+      function cloneIntoContent(data) {
+        return Cu.cloneInto(data, content.wrappedJSObject);
+      }
+
+      info(`starting setup EME`);
+      Services.scriptloader.loadSubScript(_emeHelperUri, content);
+      let video = content.document.createElement("video");
+      video.id = "media";
+      content.document.body.appendChild(video);
+      let emeHelper = new content.wrappedJSObject.EmeHelper();
+      emeHelper.SetKeySystem(
+        content.wrappedJSObject.EmeHelper.GetClearkeyKeySystemString()
+      );
+      emeHelper.SetInitDataTypes(cloneIntoContent(["webm"]));
+      emeHelper.SetVideoCapabilities(
+        cloneIntoContent([{ contentType: 'video/webm; codecs="vp9"' }])
+      );
+      emeHelper.AddKeyIdAndKey(
+        "2cdb0ed6119853e7850671c3e9906c3c",
+        "808b9adac384de1e4f56140f4ad76194"
+      );
+      emeHelper.onerror = error => {
+        is(false, `Got unexpected error from EME helper: ${error}`);
+      };
+      await emeHelper.ConfigureEme(video);
+
+      info(`starting setup MSE`);
+      const ms = new content.wrappedJSObject.MediaSource();
+      video.src = content.wrappedJSObject.URL.createObjectURL(ms);
+      await once(ms, "sourceopen");
+      const sb = ms.addSourceBuffer("video/webm");
+      const videoFile = "sintel-short-clearkey-subsample-encrypted-video.webm";
+      let fetchResponse = await content.fetch(videoFile);
+      sb.appendBuffer(await fetchResponse.arrayBuffer());
+      await once(sb, "updateend");
+      ms.endOfStream();
+      await once(ms, "sourceended");
+
+      info(`waiting 'loadeddata' event to ensure playback is ready`);
+      await once(video, "loadeddata");
+    }
+  );
+}