<!DOCTYPE HTML> <html> <head> <title>MSE: truncating the media seeks to end of media and update buffered range</title> <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <script type="text/javascript" src="mediasource.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> </head> <body> <pre id="test"> <script class="testbody" type="text/javascript"> // This test append data to a mediasource and then seek to half the duration // of the video. // We then shorten the video to 1/3rd of its original size by modifying the // mediasource.duration attribute. // We ensure that the buffered range immediately reflect the truncation // and that we've seeked to the new end of the media as per W3C spec and // video.currentTime got updated. SimpleTest.waitForExplicitFinish(); function round(n) { return Math.round(n * 1000) / 1000; } function do_seeking(e) { var v = e.target; v.removeEventListener("seeking", do_seeking, false); SimpleTest.finish(); } function do_seeked(e) { var v = e.target; v.removeEventListener("seeked", do_seeked, false); var duration = round(v.duration / 3); is(v._sb.updating, false, "sourcebuffer isn't updating"); v._sb.remove(duration, Infinity); once(v._sb, "updateend", function() { v._ms.duration = duration // frames aren't truncated, so duration may be slightly more. isfuzzy(v.duration, duration, 1/30, "element duration was updated"); v._sb.abort(); // this shouldn't abort updating the duration (bug 1130826). ok(v.seeking, "seeking is true"); // test playback position was updated (bug 1130839). is(v.currentTime, v.duration, "current time was updated"); is(v._sb.buffered.length, 1, "One buffered range"); // Truncated mediasource duration will cause the video element to seek. v.addEventListener("seeking", do_seeking, false); }); } function do_loaded(e) { var v = e.target; v.removeEventListener("loadeddata", do_loaded, false); v.currentTime = v.duration / 2; is(v.currentTime, v.duration / 2, "current time was updated"); ok(v.seeking, "seeking is true"); v.addEventListener("seeked", do_seeked, false); } runWithMSE(function (ms, v) { ms.addEventListener("sourceopen", function () { var sb = ms.addSourceBuffer("video/webm"); v._sb = sb; v._ms = ms; fetchWithXHR("seek.webm", function (arrayBuffer) { sb.appendBuffer(new Uint8Array(arrayBuffer)); v.addEventListener("loadeddata", do_loaded, false); }); }); }); </script> </pre> </body> </html>