| <!DOCTYPE html> |
| <html> |
| <body> |
| </body> |
| <script> |
| function getQueryStrings() { |
| // Gets query parameters from the URL; e.g., given a URL like: |
| // |
| // http://<url>/my.html?test=123&bob=456 |
| // |
| // returns params["test"] = 123, params["bob"]=456, etc. |
| var params = {}; |
| // RegEx to split out values by &. |
| var r = /([^&=]+)=?([^&]*)/g; |
| // Lambda function for decoding extracted match values. Replaces '+' with |
| // space so decodeURIComponent functions properly. |
| function d(s) { return decodeURIComponent(s.replace(/\+/g, ' ')); } |
| var match; |
| while (match = r.exec(window.location.search.substring(1))) |
| params[d(match[1])] = d(match[2]); |
| return params; |
| } |
| // Each network config = [DOWNLOAD_BANDWIDTH_Kbit/s, LATENCY_MS] |
| // Numbers are chosen to be similar to webpagereplay/net_configs.py |
| var netConfig = {}; |
| netConfig['cable'] = [5120, 28]; |
| netConfig['dsl'] = [1536, 50]; |
| netConfig['wifi'] = [1024, 60]; |
| netConfig['none'] = null; |
| // Constrained network server URL. |
| var CNS_BASE_URL = 'http://cns.chrome:9000/ServeConstrained?'; |
| |
| function getNetsimURL(net) { |
| if (!netConfig[net]) |
| return CNS_BASE_URL; |
| return CNS_BASE_URL + 'bandwidth=' + netConfig[net][0] + |
| '&latency=' + netConfig[net][1] |
| } |
| |
| function getMediaSRC() { |
| var mediaSRC = qsParams['src'] |
| if (qsParams['net']) |
| return getNetsimURL(qsParams['net']) + '&new_port=True' + '&f=' + |
| mediaSRC; |
| return mediaSRC; |
| } |
| |
| qsParams = getQueryStrings(); |
| var type = qsParams['type'] || 'video'; |
| var testElement = document.createElement(type); |
| var canvasElement; |
| var canvasContext; |
| testElement.preload = 'none'; |
| testElement.controls = true; |
| if (qsParams['id']) |
| testElement.id = qsParams['id']; |
| testElement.src = getMediaSRC(); |
| document.body.appendChild(testElement); |
| </script> |
| </html> |
