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Quelle test_TruncatedDuration.html Sprache: HTML |
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<!DOCTYPE HTML> <html> <head> <title>MSE: truncating the media seeks to end of media and update buffered range</title> <script 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(); const round = n => Math.round(n * 1000) / 1000; runWithMSE(async (ms, v) => { await once(ms, "sourceopen"); const sb = ms.addSourceBuffer("video/webm"); sb.appendBuffer(new Uint8Array(await fetchWithXHR("seek.webm"))); await once(sb, "updateend"); v.currentTime = v.duration / 2; is(v.currentTime, v.duration / 2, "current time was updated"); ok(v.seeking, "seeking is true"); await once(v, "seeked"); const duration = round(v.duration / 3); is(sb.updating, false, "sourcebuffer isn't updating"); sb.remove(duration, Infinity); await once(sb, "updateend"); ms.duration = duration; // frames aren't truncated, so duration may be slightly more. isfuzzy(v.duration, duration, 1 / 30, "element duration was updated"); 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(sb.buffered.length, 1, "One buffered range"); // Truncated mediasource duration will cause the video element to seek. await once(v, "seeking"); SimpleTest.finish(); }); </script> </pre> </body> </html>
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2026-04-04