| <!doctype html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <video id=video1 autoplay playsInline width=100px></video> |
| <video id=video2 autoplay playsInline width=100px></video> |
| <script> |
| promise_test(async test => { |
| const stream1 = await navigator.mediaDevices.getUserMedia({ video: { width:640, height:480, frameRate : 30 } }); |
| const stream2 = stream1.clone(); |
| test.add_cleanup(() => stream1.getTracks().forEach(track => track.stop())); |
| test.add_cleanup(() => stream2.getTracks().forEach(track => track.stop())); |
| |
| await stream2.getVideoTracks()[0].applyConstraints({ frameRate : 1 }); |
| |
| video1.srcObject = stream1; |
| video2.srcObject = stream2; |
| |
| await video1.play(); |
| await video2.play(); |
| |
| const metrics1 = video1.getVideoPlaybackQuality(); |
| const metrics2 = video2.getVideoPlaybackQuality(); |
| |
| await new Promise(resolve => setTimeout(resolve, 2000)); |
| |
| const metrics3 = video1.getVideoPlaybackQuality(); |
| const metrics4 = video2.getVideoPlaybackQuality(); |
| |
| assert_greater_than(metrics3.totalVideoFrames, 0, "test2"); |
| assert_greater_than(metrics4.totalVideoFrames, 0, "test3"); |
| |
| assert_greater_than(metrics3.totalVideoFrames, metrics1.totalVideoFrames, "test4"); |
| assert_greater_than(metrics3.totalVideoFrames, metrics4.totalVideoFrames, "test5"); |
| |
| assert_greater_than(metrics4.totalVideoFrames, metrics4.droppedVideoFrames, "test6"); |
| assert_greater_than(metrics3.totalVideoFrames, metrics3.droppedVideoFrames, "test7"); |
| |
| assert_greater_than(metrics3.totalVideoFrames - metrics1.totalVideoFrames, metrics4.totalVideoFrames - metrics2.totalVideoFrames, "test8"); |
| }, "Check MediaStream backed HTMLVideoElement.getVideoPlaybackQuality"); |
| </script> |
| </body> |
| </html> |
