| <html> |
| <title>Test of concurrent HTML5 audio</title> |
| <body> |
| |
| <p>Test that multiple audio elements can play concurrently.</p> |
| |
| <script src=video-test.js></script> |
| <script src=media-file.js></script> |
| <script> |
| var maxPlayers = 2; // Number of concurrent audio elements to test. For larger values a longer media file is needed. |
| var timeupdateEventCount = 0; |
| var audioElementCount = 0; |
| |
| function errorListener(event) |
| { |
| logResult(false, "Element " + audioElementCount + " caught 'error' event, audio.error.code = " + this.error.code); |
| endTest(); |
| } |
| |
| function canplaythroughListener(event) |
| { |
| consoleWrite("EVENT(" + audioElementCount + ", canplaythrough)"); |
| testElement = this; |
| testExpected(audioElementCount + ", testElement.currentTime", 0); |
| this.play(); |
| } |
| |
| function playingListener(event) |
| { |
| consoleWrite("EVENT(" + audioElementCount + ", playing)"); |
| } |
| |
| function timeupdateListener(event) |
| { |
| ++timeupdateEventCount; |
| |
| // wait 2 timeupdate events so we are sure the media engine is |
| // playing the media. |
| if (timeupdateEventCount >= 2) { |
| // make sure time is advancing |
| testElement = this; |
| testExpected(audioElementCount + ", testElement.currentTime", 0, '>'); |
| this.removeEventListener('timeupdate', timeupdateListener); |
| if (++audioElementCount >= maxPlayers) { |
| // All audio elements have been started playing. Make sure |
| // all of them are still playing. |
| consoleWrite("Making sure all " + maxPlayers + " audio elements are in playing state:"); |
| for (var i = 0; i < maxPlayers; i++) { |
| testElement = document.getElementsByTagName('audio')[i]; |
| testExpected(i + ", testElement.paused", false); |
| } |
| endTest(); |
| } else { |
| // Start the next audio element |
| testAudioElement(audioElementCount); |
| } |
| } |
| } |
| |
| function testAudioElement(count) |
| { |
| var audioElement = document.getElementsByTagName('audio')[count]; |
| audioElement.addEventListener('error', errorListener); |
| audioElement.addEventListener('canplaythrough', canplaythroughListener); |
| timeupdateEventCount = 0; |
| audioElement.addEventListener('timeupdate', timeupdateListener); |
| audioElement.addEventListener('playing', playingListener); |
| audioElement.src = findMediaFile("audio", "content/silence"); |
| } |
| |
| consoleWrite("Starting a total of " + maxPlayers + " concurrent audio elements."); |
| for (var i = 0; i < maxPlayers; i++) |
| document.write("<audio controls></audio>"); |
| |
| testAudioElement(0); |
| </script> |
| |
| </body> |
| </html> |
