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How to use findSafeOffset method in wpt

Best JavaScript code snippet using wpt

mediasource-changetype-util.js

Source:mediasource-changetype-util.js

...95  // don't take any extra care to avoid gaps that may occur when96  // splice-overlapping such GOP sequences that aren't SAP-Type-1.97  // TODO(wolenetz): https://github.com/w3c/media-source/issues/160 could98  // greatly simplify this problem by allowing us play through these small gaps.99  function findSafeOffset(targetTime, overlappedMediaMetadata, overlappedStartTime, overlappingMediaMetadata) {100    assert_greater_than_equal(targetTime, overlappedStartTime);101    let offset = targetTime;102    if ("start_time" in overlappingMediaMetadata) {103      offset -= overlappingMediaMetadata["start_time"];104    }105    // If the media being overlapped is not out-of-order decode, then we can106    // safely use the supplied times.107    if (!("keyframe_interval" in overlappedMediaMetadata)) {108      return { "offset": offset, "adjustedTime": targetTime };109    }110    // Otherwise, we're overlapping media that needs care to prevent introducing111    // a gap. Adjust offset and adjustedTime to make the overlapping media start112    // at the next overlapped media keyframe at or after targetTime.113    let gopsToRetain = Math.ceil((targetTime - overlappedStartTime) / overlappedMediaMetadata["keyframe_interval"]);114    let adjustedTime = overlappedStartTime + gopsToRetain * overlappedMediaMetadata["keyframe_interval"];115    assert_greater_than_equal(adjustedTime, targetTime);116    offset += adjustedTime - targetTime;117    return { "offset": offset, "adjustedTime": adjustedTime };118  }119  let sourceBuffer = mediaSource.addSourceBuffer(metadataA.type);120  appendBuffer(test, sourceBuffer, dataA);121  let lastStart = metadataA["start_time"];122  if (lastStart == null) {123    lastStart = 0.0;124  }125  // changeType A->B and append the first media of B effectively at 0.5 seconds126  // (or at the first keyframe in A at or after 0.5 seconds if it has127  // keyframe_interval defined).128  test.waitForExpectedEvents(() => {129    let safeOffset = findSafeOffset(0.5, metadataA, lastStart, metadataB);130    lastStart = safeOffset["adjustedTime"];131    sourceBuffer.changeType(metadataB.type);132    sourceBuffer.timestampOffset = safeOffset["offset"];133    appendBuffer(test, sourceBuffer, dataB);134  });135  // changeType B->B and append B starting at 1.0 seconds (or at the first136  // keyframe in B at or after 1.0 seconds if it has keyframe_interval defined).137  test.waitForExpectedEvents(() => {138    assert_less_than(lastStart, 1.0);139    let safeOffset = findSafeOffset(1.0, metadataB, lastStart, metadataB);140    lastStart = safeOffset["adjustedTime"];141    sourceBuffer.changeType(metadataB.type);142    sourceBuffer.timestampOffset = safeOffset["offset"];143    appendBuffer(test, sourceBuffer, dataB);144  });145  // changeType B->A and append A starting at 1.5 seconds (or at the first146  // keyframe in B at or after 1.5 seconds if it has keyframe_interval defined).147  test.waitForExpectedEvents(() => {148    assert_less_than(lastStart, 1.5);149    let safeOffset = findSafeOffset(1.5, metadataB, lastStart, metadataA);150    // Retain the previous lastStart because the next block will append data151    // which begins between that start time and this block's start time.152    sourceBuffer.changeType(metadataA.type);153    sourceBuffer.timestampOffset = safeOffset["offset"];154    appendBuffer(test, sourceBuffer, dataA);155  });156  // changeType A->A and append A starting at 1.3 seconds (or at the first157  // keyframe in B at or after 1.3 seconds if it has keyframe_interval defined).158  test.waitForExpectedEvents(() => {159    assert_less_than(lastStart, 1.3);160    // Our next append will begin by overlapping some of metadataB, then some of161    // metadataA.162    let safeOffset = findSafeOffset(1.3, metadataB, lastStart, metadataA);163    sourceBuffer.changeType(metadataA.type);164    sourceBuffer.timestampOffset = safeOffset["offset"];165    appendBuffer(test, sourceBuffer, dataA);166  });167  // Trim duration to 2 seconds, then play through to end.168  test.waitForExpectedEvents(() => {169    trimBuffered(test, mediaElement, sourceBuffer, 2.1, 2);170  });171  test.waitForExpectedEvents(() => {172    trimDuration(test, mediaElement, mediaSource, 2);173  });174  test.waitForExpectedEvents(() => {175    assert_equals(mediaElement.currentTime, 0);176    test.expectEvent(mediaSource, "sourceended");...

Using AI Code Generation

1var wptools = require('wptools');2var page = wptools.page('Barack Obama');3page.findSafeOffset(function(err, offset) {4  if (err) {5    console.log(err);6  } else {7    console.log(offset);8  }9});10### wptools.page(title, options)11### page.get(options, callback)12### page.findSafeOffset(callback)

Using AI Code Generation

1var wptools = require('wptools');2var wiki = new wptools('Albert Einstein');3wiki.findSafeOffset(function(err, offset) {4    if (!err) {5        console.log(offset);6    }7});

Using AI Code Generation

1var wpt = require('./index.js');2var url = process.argv[2];3wpt.findSafeOffset(url, function(err, offset){4    if(err){5        console.log(err);6    }else{7        console.log('offset: ' + offset);8    }9});

Using AI Code Generation

1const wpt = require('wpt-api')2const options = {3}4wpt.findSafeOffset(options, (err, data) => {5  if (err) {6    console.log(err)7  } else {8    console.log(data)9  }10})

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