KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use I420_DATA method in wpt

Best JavaScript code snippet using wpt

videoFrame-utils.js

1const I420_DATA = new Uint8Array([2      1, 2, 3, 4,  // y3      5, 6, 7, 8,4      9, 10,       // u5      11, 12,      // v6  ]);7function makeI420_4x2() {8  const init = {9      format: 'I420',10      timestamp: 0,11      codedWidth: 4,12      codedHeight: 2,13  };14  return new VideoFrame(I420_DATA, init);15}16function testBufferConstructedI420Frame(bufferType) {17  let fmt = 'I420';18  let vfInit = {format: fmt, timestamp: 1234, codedWidth: 4, codedHeight: 2};19  let buffer;20  if (bufferType == 'SharedArrayBuffer' ||21      bufferType == 'Uint8Array(SharedArrayBuffer)') {22    buffer = new SharedArrayBuffer(I420_DATA.length);23  } else {24    assert_true(bufferType == 'ArrayBuffer' ||25                bufferType == 'Uint8Array(ArrayBuffer)');26    buffer = new ArrayBuffer(I420_DATA.length);27  }28  let bufferView = new Uint8Array(buffer);29  bufferView.set(I420_DATA);30  let data = bufferType.startsWith('Uint8Array') ? bufferView : buffer;31  let frame = new VideoFrame(data, vfInit);32  assert_equals(frame.format, fmt, 'plane format');33  assert_equals(frame.colorSpace.primaries, 'bt709', 'color primaries');34  assert_equals(frame.colorSpace.transfer, 'bt709', 'color transfer');35  assert_equals(frame.colorSpace.matrix, 'bt709', 'color matrix');36  assert_false(frame.colorSpace.fullRange, 'color range');37  frame.close();38  let y = {offset: 0, stride: 4};39  let u = {offset: 8, stride: 2};40  let v = {offset: 10, stride: 2};41  assert_throws_js(TypeError, () => {42    let y = {offset: 0, stride: 1};43    let frame = new VideoFrame(data, {...vfInit, layout: [y, u, v]});44  }, 'y stride too small');45  assert_throws_js(TypeError, () => {46    let u = {offset: 8, stride: 1};47    let frame = new VideoFrame(data, {...vfInit, layout: [y, u, v]});48  }, 'u stride too small');49  assert_throws_js(TypeError, () => {50    let v = {offset: 10, stride: 1};51    let frame = new VideoFrame(data, {...vfInit, layout: [y, u, v]});52  }, 'v stride too small');53  assert_throws_js(TypeError, () => {54    let frame = new VideoFrame(data.slice(0, 8), vfInit);55  }, 'data too small');56}57function assert_buffer_equals(actual, expected) {58  assert_true(expected instanceof Uint8Array, 'actual instanceof Uint8Array');59  if (actual instanceof ArrayBuffer ||60      (typeof(SharedArrayBuffer) != 'undefined' &&61        actual instanceof SharedArrayBuffer)) {62    actual = new Uint8Array(actual);63  } else {64    assert_true(actual instanceof Uint8Array,65        'expected instanceof Uint8Array, ArrayBuffer, or SharedArrayBuffer');66  }67  assert_equals(actual.length, expected.length, 'buffer length');68  for (let i = 0; i < actual.length; i++) {69    if (actual[i] != expected[i]) {70      assert_equals(actual[i], expected[i], 'buffer contents at index ' + i);71    }72  }73}74function assert_layout_equals(actual, expected) {75  assert_equals(actual.length, expected.length, 'layout planes');76  for (let i = 0; i < actual.length; i++) {77    assert_object_equals(actual[i], expected[i], 'plane ' + i + ' layout');78  }79}80async function testI420_4x2_copyTo(destination) {81  const frame = makeI420_4x2();82  const expectedLayout = [83      {offset: 0, stride: 4},84      {offset: 8, stride: 2},85      {offset: 10, stride: 2},86  ];87  const expectedData = new Uint8Array([88      1, 2, 3, 4,  // y89      5, 6, 7, 8,90      9, 10,       // u91      11, 12       // v92  ]);93  assert_equals(frame.allocationSize(), expectedData.length, 'allocationSize()');94  const layout = await frame.copyTo(destination);95  assert_layout_equals(layout, expectedLayout);96  assert_buffer_equals(destination, expectedData);...

Using AI Code Generation

1const wptools = require('wptools');2const fs = require('fs');3const path = require('path');4const { spawn } = require('child_process');5const { createCanvas, loadImage } = require('canvas');6const canvas = createCanvas(1280, 720);7const ctx = canvas.getContext('2d');8const width = 1280;9const height = 720;10const data = ctx.getImageData(0, 0, width, height);11const data2 = ctx.getImageData(0, 0, width, height);

Using AI Code Generation

1var wptools = require('wptools');2var fs = require('fs');3var PNG = require('pngjs').PNG;4var request = require('request');5var options = {6};7request(options, function (error, response, body) {8    if (!error && response.statusCode == 200) {9        var stream = fs.createWriteStream("test.png");10        stream.write(body);11        stream.end();12        var png = new PNG({ filterType: 4 });13        png.on('parsed', function () {14            var data = wptools.i420Data(this.data, this.width, this.height);15            fs.writeFileSync('test.i420', data);16        });17        png.parse(body);18    }19});20var wptools = require('wptools');21var fs = require('fs');22var PNG = require('pngjs').PNG;23var request = require('request');24var options = {25};26request(options, function (error, response, body) {27    if (!error && response.statusCode == 200) {28        var stream = fs.createWriteStream("test.png");29        stream.write(body);30        stream.end();31        var png = new PNG({ filterType: 4 });32        png.on('parsed', function () {33            var data = wptools.i420File(this.data, this.width, this.height);34            fs.writeFileSync('test.i420', data);35        });36        png.parse(body);37    }38});39var wptools = require('wptools');40var fs = require('fs');41var PNG = require('pngjs').PNG;42var request = require('request');43var options = {44};45request(options, function (error, response, body) {46    if (!error && response.statusCode == 200) {47        var stream = fs.createWriteStream("test.png");48        stream.write(body);49        stream.end();

Using AI Code Generation

1var wptools = require('wptools');2test.getI420Data(function(err, data) {3    if (err) {4        console.log(err);5    } else {6        console.log(data);7    }8});9var wptools = require('wptools');10test.getI420Data(function(err, data) {11    if (err) {12        console.log(err);13    } else {14        console.log(data);15    }16});17var wptools = require('wptools');18test.getI420Data(function(err, data) {19    if (err) {20        console.log(err);21    } else {22        console.log(data);23    }24});25var wptools = require('wptools');26test.getI420Data(function(err, data) {27    if (err) {28        console.log(err);29    } else {30        console.log(data);31    }32});33var wptools = require('wptools');34test.getI420Data(function(err, data) {35    if (err) {36        console.log(err);37    } else {38        console.log(data);39    }40});41var wptools = require('wptools');42test.getI420Data(function(err, data) {43    if (err) {44        console.log(err);45    } else {46        console.log(data);47    }48});49var wptools = require('wptools');

Using AI Code Generation

1var wpt = require('wptdriver');2wpt.setOptions({i420:true});3  if (err) throw err;4  console.log(data);5});6var wpt = require('wptdriver');7wpt.setOptions({i420:true});8  if (err) throw err;9  console.log(data);10});11var wpt = require('wptdriver');12wpt.setOptions({i420:true});13  if (err) throw err;14  console.log(data);15});16var wpt = require('wptdriver');17wpt.setOptions({i420:true});18  if (err) throw err;19  console.log(data);20});21var wpt = require('wptdriver');22wpt.setOptions({i420:true});23  if (err) throw err;24  console.log(data);25});26var wpt = require('wptdriver');27wpt.setOptions({i420:true});28  if (err) throw err;29  console.log(data);30});31var wpt = require('wptdriver');32wpt.setOptions({i420:true});33  if (err) throw err;34  console.log(data);35});

Using AI Code Generation

1const wptools = require('wptools');2const wp = new wptools();3const fs = require('fs');4wp.setOutputDir('test');5wp.setOutputFormat('I420_DATA');6wp.setOutputFileName('test');7wp.setOutputFileType('yuv');8wp.setOutputFileExtension('yuv');9wp.setOutputFileBitDepth('8bit');10wp.setOutputFileColorSpace('YUV420');11wp.setOutputFileResolution('4K');12wp.setOutputFileDimension('4096x2160');13wp.setOutputFileAspectRatio('16:9');14wp.setOutputFileFramerate('24fps');15wp.setOutputFileCodec('h264');16wp.setOutputFileBitrate('8Mbps');17wp.setOutputFileQuality('100');18wp.setOutputFileBitrateMode('CBR');19wp.setOutputFileColorRange('Limited');20wp.setOutputFileColorPrimaries('BT709');21wp.setOutputFileColorTransfer('BT709');22wp.setOutputFileColorMatrix('BT709');23wp.setOutputFileChromaLocation('Left');24wp.setOutputFileChromaSubsampling('4:2:0');25wp.setOutputFileInterlaced('Progressive');26wp.setOutputFileTopFieldFirst('Top');27wp.setOutputFileAlphaChannel('No');28wp.setOutputFileAudio('No');29wp.setOutputFileAudioCodec('AAC');30wp.setOutputFileAudioBitrate('192Kbps');31wp.setOutputFileAudioSampleRate('44.1

Using AI Code Generation

1var wpt = require('webpagetest');2var wptClient = wpt('www.webpagetest.org');3});4var wpt = require('webpagetest');5var wptClient = wpt('www.webpagetest.org');6});7var wpt = require('webpagetest');8var wptClient = wpt('www.webpagetest.org');9});10var wpt = require('webpagetest');11var wptClient = wpt('www.webpagetest.org');12});13var wpt = require('webpagetest');14var wptClient = wpt('www.webpagetest.org');15});16var wpt = require('webpagetest');17var wptClient = wpt('www.webpagetest.org');

Blogs

Check out the latest blogs from LambdaTest on this topic:

How To Get Started With Cypress Debugging

One of the most important tasks of a software developer is not just writing code fast; it is the ability to find what causes errors and bugs whenever you encounter one and the ability to solve them quickly.

Best Mobile App Testing Framework for Android and iOS Applications

This article is a part of our Content Hub. For more in-depth resources, check out our content hub on Mobile App Testing Tutorial.

How To Automate Desktops Apps Using WinAppDriver

13 Best Test Automation Frameworks: The 2021 List

Automation frameworks enable automation testers by simplifying the test development and execution activities. A typical automation framework provides an environment for executing test plans and generating repeatable output. They are specialized tools that assist you in your everyday test automation tasks. Whether it is a test runner, an action recording tool, or a web testing tool, it is there to remove all the hard work from building test scripts and leave you with more time to do quality checks. Test Automation is a proven, cost-effective approach to improving software development. Therefore, choosing the best test automation framework can prove crucial to your test results and QA timeframes.

Putting Together a Testing Team

As part of one of my consulting efforts, I worked with a mid-sized company that was looking to move toward a more agile manner of developing software. As with any shift in work style, there is some bewilderment and, for some, considerable anxiety. People are being challenged to leave their comfort zones and embrace a continuously changing, dynamic working environment. And, dare I say it, testing may be the most ‘disturbed’ of the software roles in agile development.

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.