<!DOCTYPE html>
<html>
<head>
<title>Playback before SetMediaKeys</title>
<script src="encrypted-media-utils.js"></script>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
</head>
<body>
<video></video>
<script>
promise_test(function(test)
{
var video = document.querySelector('video');
var content = '../content/test-encrypted.webm';
var mediaKeys;
var initData;
var initDataType;
var mediaKeySession;
// As this code doesn't wait for the 'message' event to avoid
// race conditions with 'waitingforkey', specify the key ID and
// key used by the encrypted content.
var keyId = stringToUint8Array('0123456789012345');
var rawKey = new Uint8Array([0xeb, 0xdd, 0x62, 0xf1, 0x68, 0x14, 0xd2, 0x7b,
0x68, 0xef, 0x12, 0x2a, 0xfc, 0xe4, 0xae, 0x3c]);
return navigator.requestMediaKeySystemAccess('org.w3.clearkey', getConfigurationForFile(content)).then(function(access) {
return access.createMediaKeys();
}).then(function(result) {
// Store mediaKeys without setting it on the video.
mediaKeys = result;
video.src = content;
video.play();
return wait_for_encrypted_event(video);
}).then(function(e) {
// Received the 'encrypted' event(s), so keep a copy of
// the initdata for use when creating the session later.
initData = e.initData;
initDataType = e.initDataType;
// Wait until the video indicates that it needs a key to
// continue.
return wait_for_waitingforkey_event(video);
}).then(function() {
// Make sure the video is NOT paused and not progressing
// before a key is provided. This requires the video
// to NOT have a clear lead.
assert_false(video.paused);
assert_equals(video.currentTime, 0);
// Create a session.
mediaKeySession = mediaKeys.createSession();
return mediaKeySession.generateRequest(initDataType, initData);
}).then(function() {
// generateRequest() will cause a 'message' event to
// occur specifying the keyId that is needed, but we
// ignore it since we already know what keyId is needed.
// Add the key needed to decrypt.
var jwkSet = stringToUint8Array(createJWKSet(createJWK(keyId, rawKey)));
return mediaKeySession.update(jwkSet);
}).then(function() {
// Now setMediaKeys() and playback should start.
return video.setMediaKeys(mediaKeys);
}).then(function() {
// Video should start playing now that it can decrypt the
// streams, so wait until a little bit of the video has
// played.
return wait_for_timeupdate_event(video);
});
// Typical test duration is 6 seconds on release builds
// (12 seconds on debug). Since the test is timing out anyway,
// make the duration 5 seconds so that the timeout function
// is actually called (instead of simply aborting the test).
}, 'Playback before SetMediaKeys', { timeout: 5000 });
// Wait for a pair of 'encrypted' events. Promise resolved on
// second event.
function wait_for_encrypted_event(video)
{
var encryptedEventCount = 0;
return new Promise(function(resolve) {
video.addEventListener('encrypted', function listener(e) {
assert_equals(e.target, video);
assert_true(e instanceof window.MediaEncryptedEvent);
assert_equals(e.type, 'encrypted');
// The same decryption key is used by both the audio
// and the video streams so wait for the second event
// to ensure we see both events.
if (++encryptedEventCount != 2)
return;
video.removeEventListener('encrypted', listener);
resolve(e);
});
});
};
// Wait for a 'waitingforkey' event. Promise resolved when the
// event is received.
function wait_for_waitingforkey_event(video)
{
return new Promise(function(resolve) {
video.addEventListener('waitingforkey', function listener(e) {
assert_equals(e.target, video);
assert_equals(e.type, 'waitingforkey');
video.removeEventListener('waitingforkey', listener);
resolve(e);
});
});
};
// Wait for a 'timeupdate' event. Promise resolved if |video| has
// played for more than 0.2 seconds.
function wait_for_timeupdate_event(video)
{
return new Promise(function(resolve) {
video.addEventListener('timeupdate', function listener(e) {
assert_equals(e.target, video);
if (video.currentTime < 0.2)
return;
video.removeEventListener('timeupdate', listener);
resolve(e);
});
});
};
</script>
</body>
</html>
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