﻿<!DOCTYPE HTML>
<html>
<head>
  <script type="application/javascript" src="pc.js"></script>
  <script type="application/javascript" src="/tests/dom/canvas/test/captureStream_common.js"></script>
</head>
<body>
<pre id="test">
<script type="application/javascript">
createHTML({
  bug: "1032848",
  title: "Canvas(2D)::CaptureStream as video-only input to peerconnection",
  visible: true
});

runNetworkTest(async () => {
  // [TODO] re-enable HW decoder after bug 1526207 is fixed.
  if (navigator.userAgent.includes("Android")) {
    await pushPrefs(["media.navigator.mediadatadecoder_vpx_enabled", false],
                    ["media.webrtc.hw.h264.enabled", false]);
  }

  var test = new PeerConnectionTest();
  var mediaElement;
  var h = new CaptureStreamTestHelper2D();
  var canvas = document.createElement('canvas');
  var stream;
  canvas.id = 'source_canvas';
  canvas.width = canvas.height = 16;
  document.getElementById('content').appendChild(canvas);

  test.setMediaConstraints([{video: true}], []);
  test.chain.replace("PC_LOCAL_GUM", [
    function PC_LOCAL_CANVAS_CAPTURESTREAM(test) {
      h.drawColor(canvas, h.green);
      stream = canvas.captureStream(0);
      test.pcLocal.attachLocalStream(stream);
      stream.requestFrame();
      var i = 0;
      return setInterval(function() {
        try {
          info("draw " + i ? "green" : "red");
          h.drawColor(canvas, i ? h.green : h.red);
          i = 1 - i;
          stream.requestFrame();
        } catch (e) {
          // ignore; stream might have shut down, and we don't bother clearing
          // the setInterval.
        }
      }, 500);
    }
  ]);
  test.chain.append([
    function PC_REMOTE_WAIT_FOR_REMOTE_GREEN() {
      mediaElement = test.pcRemote.remoteMediaElements[0];
      ok(!!mediaElement, "Should have remote video element for pcRemote");
      return h.pixelMustBecome(mediaElement, h.green, {
        threshold: 128,
        infoString: "pcRemote's remote should become green",
      });
    },
    function PC_LOCAL_DRAW_LOCAL_RED() {
      // After requesting a frame it will be captured at the time of next render.
      // Next render will happen at next stable state, at the earliest,
      // i.e., this order of `requestFrame(); draw();` should work.
      stream.requestFrame();
      h.drawColor(canvas, h.red);
    },
    function PC_REMOTE_WAIT_FOR_REMOTE_RED() {
      return h.pixelMustBecome(mediaElement, h.red, {
        threshold: 128,
        infoString: "pcRemote's remote should become red",
      });
    }
  ]);
  await test.run();
});
</script>
</pre>
</body>
</html>
