| <html> |
| <head><title>document loading</title></head> |
| <body> |
| <script> |
| // Returns the video file name corresponding to |codecs|. |
| // |codecs| may be null, in which case null will be returned. |
| // Otherwise, |codecs| is a comma-delimited string without spaces. |
| function getVideoFileNameForCodecs(codecs) { |
| if (!codecs) { |
| document.title = 'The "codecs" parameter is required.'; |
| return null; |
| } |
| |
| if (codecs == "vp8") { |
| return 'bear-vp8a.webm'; |
| } else if (codecs == "vp9,opus") { |
| return 'bear-vp9-opus.webm'; |
| } else if (codecs == "vp9") { |
| return 'bear-vp9.webm'; |
| } else { |
| document.title = 'Unrecognized value in "codecs" parameter'; |
| return null; |
| } |
| } |
| var bear = document.createElement('video'); |
| var isMetadataLoaded = false; |
| var isPlaying = false; |
| |
| var params = new URLSearchParams(window.location.search); |
| var videoFile = getVideoFileNameForCodecs(params.get("codecs")); |
| |
| // Per https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video, |
| // "the video will autoplay if the attribute is there in the <video> tag |
| // at all." Therefore, only set the attribute if the parameter is true. |
| if (params.get("autoplay") == "1") { |
| bear.autoplay = true; |
| } |
| |
| // The title will only be changed from 'playing' to 'ended' if requested. |
| // This avoids potentially flaky tests if the video ends during the test. |
| var reportEnded = params.get("reportended") == "1"; |
| |
| bear.onerror = function() { document.title = 'media element error'; } |
| bear.onloadeddata = function() { |
| document.title = 'loaded'; |
| |
| if (bear.autoplay) { |
| // No events are generated if autoplay's been denied, so use a |
| // 0.2s timeout to detect and report the denial. |
| window.setTimeout(function() { |
| if (!isPlaying) |
| document.title = 'blocked'; |
| }, 200); |
| } |
| } |
| bear.onloadedmetadata = function() { isMetadataLoaded = true; } |
| bear.onpause = function () { isPlaying = false; } |
| bear.onplay = function() { |
| isPlaying = true; |
| document.title = 'playing'; |
| } |
| bear.onstalled = function() { document.title = 'stalled'; } |
| bear.onended = function() { |
| if (reportEnded) { |
| document.title = 'ended'; |
| } |
| } |
| |
| if (videoFile) { |
| // Programatically set the title, to provide an externally-visible |
| // indication that the page's scripts have executed. |
| document.title = 'initial title'; |
| |
| bear.src = videoFile; |
| } |
| // Else, the title should already be set to the error. |
| </script> |
| </body> |
| </html> |
