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MediaRecorder-creation.https.html
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MediaRecorder-creation.https.html
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<!doctype html>
<html>
<head>
<title>MediaRecorder Creation</title>
<link rel="help" href="https://w3c.github.io/mediacapture-record/MediaRecorder.html#mediarecorder">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<script>
// This test verifies that MediaRecorder can be created with different Media
// Stream Track combinations: 1 Video Track only, 1 Audio Track only and finally
// a Media Stream with both a Video and an Audio Track. Note that recording is
// _not_ started in this test, see MediaRecorder-audio-video.html for it.
function makeAsyncTest(constraints, verifyStream, message) {
async_test(function(test) {
const gotStream = test.step_func(function(stream) {
verifyStream(stream);
var recorder = new MediaRecorder(stream);
assert_equals(recorder.state, "inactive");
assert_equals(recorder.videoBitsPerSecond, 0);
assert_equals(recorder.audioBitsPerSecond, 0);
test.done();
});
const onError = test.unreached_func('Error creating MediaStream.');
navigator.getUserMedia(constraints, gotStream, onError);
}, message);
}
function verifyVideoOnlyStream(stream) {
assert_equals(stream.getAudioTracks().length, 0);
assert_equals(stream.getVideoTracks().length, 1);
assert_equals(stream.getVideoTracks()[0].readyState, 'live');
}
function verifyAudioOnlyStream(stream) {
assert_equals(stream.getAudioTracks().length, 1);
assert_equals(stream.getVideoTracks().length, 0);
assert_equals(stream.getAudioTracks()[0].readyState, 'live');
}
function verifyAudioVideoStream(stream) {
assert_equals(stream.getAudioTracks().length, 1);
assert_equals(stream.getVideoTracks().length, 1);
assert_equals(stream.getVideoTracks()[0].readyState, 'live');
assert_equals(stream.getAudioTracks()[0].readyState, 'live');
}
// Note: webkitGetUserMedia() must be called with at least video or audio true.
makeAsyncTest({video:true}, verifyVideoOnlyStream, 'Video-only MediaRecorder');
makeAsyncTest({audio:true}, verifyAudioOnlyStream, 'Audio-only MediaRecorder');
makeAsyncTest({audio:true, video:true}, verifyAudioVideoStream, 'Video+Audio MediaRecorder');
</script>
</html>