Created
October 20, 2016 03:26
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Save johanbrook/e9da693228c5af487511694b203bfc55 to your computer and use it in GitHub Desktop.
Put a screen1.m4v file in the same folder and serve.
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>MediaSource</title> | |
| </head> | |
| <body> | |
| <video id="video"></video> | |
| <script type="text/javascript"> | |
| const video = document.getElementById('video'); | |
| const mimeCodec = 'video/mp4; codecs="avc1.42E01E, mp4a.40.2"'; | |
| const urls = [ | |
| '/screen1.m4v' | |
| ]; | |
| if ('MediaSource' in window && MediaSource.isTypeSupported(mimeCodec)) { | |
| const mediaSource = new MediaSource; | |
| console.log(mediaSource.readyState); // closed | |
| video.src = URL.createObjectURL(mediaSource); | |
| mediaSource.addEventListener('sourceopen', sourceOpen); | |
| } else { | |
| console.error('Unsupported MIME type or codec: ', mimeCodec); | |
| } | |
| function sourceOpen() { | |
| console.log(this.readyState); | |
| const mediaSource = this; | |
| const sourceBuffer = mediaSource.addSourceBuffer(mimeCodec); | |
| fetchAB(urls[0]).then(buf => { | |
| sourceBuffer.addEventListener('updateend', () => { | |
| console.log(mediaSource.readyState); | |
| mediaSource.endOfStream(); | |
| video.play(); | |
| }); | |
| if(!sourceBuffer.updating) { | |
| sourceBuffer.appendBuffer(buf); | |
| } | |
| }) | |
| .catch(err => console.error(err)); | |
| } | |
| function fetchAB (url) { | |
| console.log('fetching', url); | |
| return new Promise((resolve, reject) => { | |
| const xhr = new XMLHttpRequest; | |
| xhr.open('get', url, true); | |
| xhr.responseType = 'arraybuffer'; | |
| xhr.onload = () => | |
| resolve(xhr.response); | |
| xhr.onerror = (err) => | |
| reject(err); | |
| xhr.send(); | |
| }); | |
| }; | |
| </script> | |
| </body> | |
| </html> |
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