| OLD | NEW |
|---|
| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <!-- |
| 4 Copyright 2014 The Chromium Authors. All rights reserved. |
| 5 Use of this source code is governed by a BSD-style license that can be |
| 6 found in the LICENSE file. |
| 7 --> |
| 8 <head> |
| 9 <title>Video Encoder Example</title> |
| 10 <style type="text/css"> |
| 11 #video { |
| 12 position: fixed; |
| 13 } |
| 14 #plugin { |
| 15 position: fixed; |
| 16 } |
| 17 </style> |
| 18 <script type="text/javascript"> |
| 19 var plugin; |
| 20 var track; |
| 21 var video; |
| 22 |
| 23 function success(stream) { |
| 24 track = stream.getVideoTracks()[0]; |
| 25 video.src = URL.createObjectURL(stream); |
| 26 video.play(); |
| 27 |
| 28 plugin.postMessage({ |
| 29 command: 'start', |
| 30 track: track |
| 31 }); |
| 32 } |
| 33 |
| 34 function failure(e) { |
| 35 console.log("Error: ", e); |
| 36 } |
| 37 |
| 38 function startRecord() { |
| 39 console.log("starting record"); |
| 40 navigator.webkitGetUserMedia({audio: false, video: true}, success, failure
); |
| 41 } |
| 42 |
| 43 function stopRecord() { |
| 44 plugin.postMessage({ |
| 45 command: "stop" |
| 46 }); |
| 47 var video = document.getElementById('video'); |
| 48 video.pause(); |
| 49 track.stop(); |
| 50 } |
| 51 |
| 52 function saveBlob(blob) { |
| 53 var blobUrl = URL.createObjectURL(blob); |
| 54 window.location = blobUrl; |
| 55 } |
| 56 |
| 57 function handleMessage(msg) { |
| 58 if (msg.data.name == 'started') { |
| 59 console.log('recording!'); |
| 60 } else if (msg.data.name == 'data') { |
| 61 appendData(msg.data.data); |
| 62 } else if (msg.data.name == 'stopped') { |
| 63 console.log('done recording! bytes: ' + dataArray.byteLength); |
| 64 saveBlob(new Blob([dataArray], { type: "application/octet-stream" })); |
| 65 resetData(); |
| 66 } |
| 67 } |
| 68 |
| 69 function resetData() { |
| 70 window.dataArray = new ArrayBuffer(0); |
| 71 } |
| 72 |
| 73 function appendData(data) { |
| 74 var tmp = new Uint8Array(dataArray.byteLength + data.byteLength); |
| 75 tmp.set(new Uint8Array(dataArray), 0 ); |
| 76 tmp.set(new Uint8Array(data), dataArray.byteLength); |
| 77 dataArray = tmp.buffer; |
| 78 } |
| 79 |
| 80 function initialize() { |
| 81 plugin = document.getElementById('plugin'); |
| 82 plugin.addEventListener('message', handleMessage, false); |
| 83 |
| 84 video = document.getElementById('video'); |
| 85 |
| 86 var selectEl = document.getElementById('start'); |
| 87 selectEl.addEventListener('click', function (e) { |
| 88 resetData(); |
| 89 startRecord(); |
| 90 }); |
| 91 selectEl = document.getElementById('stop'); |
| 92 selectEl.addEventListener('click', function (e) { |
| 93 stopRecord(); |
| 94 }); |
| 95 } |
| 96 |
| 97 document.addEventListener('DOMContentLoaded', initialize, false); |
| 98 </script> |
| 99 </head> |
| 100 |
| 101 <body> |
| 102 <h1>Video Encoder API Example</h1><br> |
| 103 This example demonstrates receiving frames from a video MediaStreamTrack and |
| 104 encoding them in a plugin. |
| 105 <br> |
| 106 <input type="button" id="start" value="Start Recording"/> |
| 107 <input type="button" id="stop" value="Stop Recording"/> |
| 108 <br> |
| 109 <div> |
| 110 <embed id="plugin" type="application/x-ppapi-example-video-encode" |
| 111 width="640" height="480"/> |
| 112 <video id="video" width="640" height="480"/> |
| 113 </div> |
| 114 </body> |
| 115 </html> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 937643006:
Pepper: add video_encoder example (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@bbudge-ppb-video-encoder-impl