How to use makeI420_4x2 method in wpt

Best JavaScript code snippet using wpt

videoFrame-copyTo.any.js

Source:videoFrame-copyTo.any.js

1// META: global=window,dedicatedworker2function makeI420_4x2() {3  const data = new Uint8Array([4      1, 2, 3, 4,  // y5      5, 6, 7, 8,6      9, 10,       // u7      11, 12,      // v8  ]);9  const init = {10      format: 'I420',11      timestamp: 0,12      codedWidth: 4,13      codedHeight: 2,14  };15  return new VideoFrame(data, init);16}17function makeRGBA_2x2() {18  const data = new Uint8Array([19      1,2,3,4,    5,6,7,8,20      9,10,11,12, 13,14,15,16,21  ]);22  const init = {23      format: 'RGBA',24      timestamp: 0,25      codedWidth: 2,26      codedHeight: 2,27  };28  return new VideoFrame(data, init);29}30function assert_buffer_equals(actual, expected) {31  assert_true(actual instanceof Uint8Array, 'actual instanceof Uint8Array');32  assert_true(expected instanceof Uint8Array, 'buffer instanceof Uint8Array');33  assert_equals(actual.length, expected.length, 'buffer length');34  for (let i = 0; i < actual.length; i++) {35    if (actual[i] != expected[i]) {36      assert_equals(actual[i], expected[i], 'buffer contents at index ' + i);37    }38  }39}40function assert_layout_equals(actual, expected) {41  assert_equals(actual.length, expected.length, 'layout planes');42  for (let i = 0; i < actual.length; i++) {43    assert_object_equals(actual[i], expected[i], 'plane ' + i + ' layout');44  }45}46promise_test(async t => {47  const frame = makeI420_4x2();48  const expectedLayout = [49      {offset: 0, stride: 4},50      {offset: 8, stride: 2},51      {offset: 10, stride: 2},52  ];53  const expectedData = new Uint8Array([54      1, 2, 3, 4,  // y55      5, 6, 7, 8,56      9, 10,       // u57      11, 12       // v58  ]);59  assert_equals(frame.allocationSize(), expectedData.length, 'allocationSize()');60  const data = new Uint8Array(expectedData.length);61  const layout = await frame.copyTo(data);62  assert_layout_equals(layout, expectedLayout);63  assert_buffer_equals(data, expectedData);64}, 'Test I420 frame.');65promise_test(async t => {66  const frame = makeRGBA_2x2();67  const expectedLayout = [68      {offset: 0, stride: 8},69  ];70  const expectedData = new Uint8Array([71      1,2,3,4,    5,6,7,8,72      9,10,11,12, 13,14,15,16,73  ]);74  assert_equals(frame.allocationSize(), expectedData.length, 'allocationSize()');75  const data = new Uint8Array(expectedData.length);76  const layout = await frame.copyTo(data);77  assert_layout_equals(layout, expectedLayout);78  assert_buffer_equals(data, expectedData);79}, 'Test RGBA frame.');80promise_test(async t => {81  const frame = makeI420_4x2();82  const data = new Uint8Array(11);83  await promise_rejects_js(t, TypeError, frame.copyTo(data));84}, 'Test undersized buffer.');85promise_test(async t => {86  const frame = makeI420_4x2();87  const options = {88    layout: [{offset: 0, stride: 4}],89  };90  assert_throws_js(TypeError, () => frame.allocationSize(options));91  const data = new Uint8Array(12);92  await promise_rejects_js(t, TypeError, frame.copyTo(data, options));93}, 'Test incorrect plane count.');94promise_test(async t => {95  const frame = makeI420_4x2();96  const options = {97      layout: [98          {offset: 4, stride: 4},99          {offset: 0, stride: 2},100          {offset: 2, stride: 2},101      ],102  };103  const expectedData = new Uint8Array([104      9, 10,       // u105      11, 12,      // v106      1, 2, 3, 4,  // y107      5, 6, 7, 8,108  ]);109  assert_equals(frame.allocationSize(options), expectedData.length, 'allocationSize()');110  const data = new Uint8Array(expectedData.length);111  const layout = await frame.copyTo(data, options);112  assert_layout_equals(layout, options.layout);113  assert_buffer_equals(data, expectedData);114}, 'Test stride and offset work.');115promise_test(async t => {116  const frame = makeI420_4x2();117  const options = {118      layout: [119          {offset: 9, stride: 5},120          {offset: 1, stride: 3},121          {offset: 5, stride: 3},122      ],123  };124  const expectedData = new Uint8Array([125      0,126      9, 10, 0,       // u127      0,128      11, 12, 0,      // v129      0,130      1, 2, 3, 4, 0,  // y131      5, 6, 7, 8, 0,132  ]);133  assert_equals(frame.allocationSize(options), expectedData.length, 'allocationSize()');134  const data = new Uint8Array(expectedData.length);135  const layout = await frame.copyTo(data, options);136  assert_layout_equals(layout, options.layout);137  assert_buffer_equals(data, expectedData);138}, 'Test stride and offset with padding.');139promise_test(async t => {140  const frame = makeI420_4x2();141  const options = {142      layout: [143          {offset: 0, stride: 1},144          {offset: 8, stride: 2},145          {offset: 10, stride: 2},146      ],147  };148  assert_throws_js(TypeError, () => frame.allocationSize(options));149  const data = new Uint8Array(12);150  await promise_rejects_js(t, TypeError, frame.copyTo(data, options));151}, 'Test invalid stride.');152promise_test(async t => {153  const frame = makeI420_4x2();154  const options = {155      layout: [156          {offset: 0, stride: 4},157          {offset: 8, stride: 2},158          {offset: 2 ** 32 - 2, stride: 2},159      ],160  };161  assert_throws_js(TypeError, () => frame.allocationSize(options));162  const data = new Uint8Array(12);163  await promise_rejects_js(t, TypeError, frame.copyTo(data, options));164}, 'Test address overflow.');165promise_test(async t => {166  const frame = makeI420_4x2();167  const options = {168      rect: frame.codedRect,169  };170  const expectedLayout = [171      {offset: 0, stride: 4},172      {offset: 8, stride: 2},173      {offset: 10, stride: 2},174  ];175  const expectedData = new Uint8Array([176      1, 2, 3, 4, 5, 6, 7, 8,  // y177      9, 10,                   // u178      11, 12                   // v179  ]);180  assert_equals(frame.allocationSize(options), expectedData.length, 'allocationSize()');181  const data = new Uint8Array(expectedData.length);182  const layout = await frame.copyTo(data, options);183  assert_layout_equals(layout, expectedLayout);184  assert_buffer_equals(data, expectedData);185}, 'Test codedRect.');186promise_test(async t => {187  const frame = makeI420_4x2();188  const options = {189      rect: {x: 0, y: 0, width: 4, height: 0},190  };191  assert_throws_js(TypeError, () => frame.allocationSize(options));192  const data = new Uint8Array(12);193  await promise_rejects_js(t, TypeError, frame.copyTo(data, options));194}, 'Test empty rect.');195promise_test(async t => {196  const frame = makeI420_4x2();197  const options = {198      rect: {x: 0, y: 0, width: 4, height: 1},199  };200  assert_throws_js(TypeError, () => frame.allocationSize(options));201  const data = new Uint8Array(12);202  await promise_rejects_js(t, TypeError, frame.copyTo(data, options));203}, 'Test unaligned rect.');204promise_test(async t => {205  const frame = makeI420_4x2();206  const options = {207      rect: {x: 2, y: 0, width: 2, height: 2},208  };209  const expectedLayout = [210      {offset: 0, stride: 2},211      {offset: 4, stride: 1},212      {offset: 5, stride: 1},213  ];214  const expectedData = new Uint8Array([215      3, 4,  // y216      7, 8,217      10,    // u218      12     // v219  ]);220  assert_equals(frame.allocationSize(options), expectedData.length, 'allocationSize()');221  const data = new Uint8Array(expectedData.length);222  const layout = await frame.copyTo(data, options);223  assert_layout_equals(layout, expectedLayout);224  assert_buffer_equals(data, expectedData);225}, 'Test left crop.');226promise_test(async t => {227  const frame = makeI420_4x2();228  const options = {229      rect: {x: 0, y: 0, width: 4, height: 4},230  };231  assert_throws_js(TypeError, () => frame.allocationSize(options));232  const data = new Uint8Array(12);233  await promise_rejects_js(t, TypeError, frame.copyTo(data, options));...

Using AI Code Generation

1const wpt = require('wpt');2wpt.makeI420_4x2(1, 2, 3, 4, 5, 6, 7, 8, (err, result) => {3    if (err) {4        console.log('error: ', err);5    } else {6        console.log('result: ', result);7    }8});9const wpt = require('wpt');10wpt.makeI420_4x2(1, 2, 3, 4, 5, 6, 7, 8, (err, result) => {11    if (err) {12        console.log('error: ', err);13    } else {14        console.log('result: ', result);15    }16});17const wpt = require('wpt');18wpt.makeI420_4x2(1, 2, 3, 4, 5, 6, 7, 8, (err, result) => {19    if (err) {20        console.log('error: ', err);21    } else {22        console.log('result: ', result);23    }24});25const wpt = require('wpt');26wpt.makeI420_4x2(1, 2, 3, 4, 5, 6, 7, 8, (err, result) => {27    if (err) {28        console.log('error: ', err);29    } else {30        console.log('result: ', result);31    }32});33const wpt = require('wpt');34wpt.makeI420_4x2(1, 2, 3, 4, 5, 6, 7, 8, (err, result) => {35    if (err) {36        console.log('error: ', err);37    } else {38        console.log('result: ', result);39    }40});

Using AI Code Generation

1var wptc = require('./build/Release/wptc');2var frame = wptc.makeI420_4x2();3console.log(frame);4var wptc = require('./build/Release/wptc');5var frame = wptc.makeI420_4x2();6console.log(frame);7var wptc = require('./build/Release/wptc');8var frame = wptc.makeI420_4x2();9console.log(frame);10var wptc = require('./build/Release/wptc');11var frame = wptc.makeI420_4x2();12console.log(frame);13var wptc = require('./build/Release/wptc');14var frame = wptc.makeI420_4x2();15console.log(frame);16var wptc = require('./build/Release/wptc');17var frame = wptc.makeI420_4x2();18console.log(frame);19var wptc = require('./build/Release/wptc');20var frame = wptc.makeI420_4x2();21console.log(frame);22var wptc = require('./build/Release/wptc');23var frame = wptc.makeI420_4x2();24console.log(frame);25var wptc = require('./build/Release/wptc');26var frame = wptc.makeI420_4x2();27console.log(frame);

Using AI Code Generation

1var wptc = require('wptc');2var frame = wptc.makeI420_4x2();3console.log(frame);4var wptc = require('wptc');5var frame = wptc.makeI420_4x2();6console.log(frame);7var wptc = require('wptc');8var frame = wptc.makeI420_4x2();9console.log(frame);10var wptc = require('wptc');11var frame = wptc.makeI420_4x2();12console.log(frame);13var wptc = require('wptc');14var frame = wptc.makeI420_4x2();15console.log(frame);16var wptc = require('wptc');17var frame = wptc.makeI420_4x2();18console.log(frame);19var wptc = require('wptc');20var frame = wptc.makeI420_4x2();21console.log(frame);22var wptc = require('wptc');23var frame = wptc.makeI420_4x2();24console.log(frame);25var wptc = require('wptc');26var frame = wptc.makeI420_4x2();27console.log(frame);28var wptc = require('wptc');29var frame = wptc.makeI420_4x2();30console.log(frame);

Using AI Code Generation

1var wpt = require('./wpt.js');2var fs = require('fs');3var i420_4x2 = wpt.makeI420_4x2();4fs.writeFileSync('i420_4x2.yuv', i420_4x2.y);5fs.writeFileSync('i420_4x2.u', i420_4x2.u);6fs.writeFileSync('i420_4x2.v', i420_4x2.v);7var addon = require('./build/Release/addon');8exports.makeI420_4x2 = function() {9  return addon.makeI420_4x2();10};11{12    {13        "<!(node -e \"require('nan')\")"14      "xcode_settings": {15      }16    }17}18using namespace v8;19NAN_METHOD(makeI420_4x2) {20  NanScope();21  char y[4 * 2];22  char u[2 * 1];23  char v[2 * 1];24  memset(y, 0x10, sizeof(y));25  memset(u, 0x80, sizeof(u));26  memset(v, 0x80, sizeof(v));27  Local<Object> obj = NanNew<Object>();28  obj->Set(NanNew("y"), NanNewBufferHandle(y, sizeof(y)));29  obj->Set(NanNew("u"), NanNewBufferHandle(u, sizeof(u)));30  obj->Set(NanNew("v"), NanNewBufferHandle(v, sizeof(v)));31  NanReturnValue(obj);32}33void Init(Handle<Object> exports) {34  exports->Set(NanNew("makeI420_4x2"), NanNew<FunctionTemplate>(makeI420_4x2)->GetFunction());

Using AI Code Generation

1var wptools = require('wptools');2var fs = require('fs');3var path = require('path');4var data = fs.readFileSync(path.join(__dirname, 'test.yuv'));5var width = 640;6var height = 480;7var ret = wptools.makeI420_4x2(data, width, height);8console.log(ret);

Using AI Code Generation

1const wptools = require('wptools');2const fs = require('fs');3const input = fs.readFileSync('./test.png');4const output = wptools.makeI420_4x2(input);5fs.writeFileSync('./test.yuv', output);6import wptools7import sys8with open('./test.png', 'rb') as f:9    input = f.read()10output = wptools.makeI420_4x2(input)11with open('./test.yuv', 'wb') as f:12    f.write(output)

Using AI Code Generation

1var wptc = require('wptc');2var image = wptc.makeI420_4x2(1, 2, 3, 4);3console.log(image);4var wptc = require('wptc');5var image = wptc.makeI420_4x2(1, 2, 3, 4);6console.log(image);7var wptc = require('wptc');8var image = wptc.makeI420_4x2(1, 2, 3, 4);9console.log(image);10var wptc = require('wptc');11var image = wptc.makeI420_4x2(1, 2, 3, 4);12console.log(image);13var wptc = require('wptc');14var image = wptc.makeI420_4x2(1, 2, 3, 4);15console.log(image);16var wptc = require('wptc');17var image = wptc.makeI420_4x2(1, 2, 3, 4);18console.log(image);19var wptc = require('wptc');20var image = wptc.makeI420_4x2(1, 2, 3, 4);21console.log(image);

Using AI Code Generation

1var wptc = require('./wptc.js');2var test = new wptc();3var testBuffer = test.makeI420_4x2();4console.log(testBuffer);5function wptc() {6}7wptc.prototype.makeI420_4x2 = function() {8  var buffer = new Buffer(16);9  for (var i = 0; i < 16; i++) {10    buffer[i] = i;11  }12  return buffer;13};14module.exports = wptc;15var wptc = require('./wptc.js');16var test = new wptc();17var testBuffer = test.makeI420_4x2();18console.log(testBuffer);19var wptc = require('./wptc.js');20var test = new wptc.wptc();21var testBuffer = test.makeI420_4x2();22console.log(testBuffer);23var wptc = require('./wptc.js');24var test = new wptc.wptc();25var testBuffer = wptc.makeI420_4x2();26console.log(testBuffer);27var wptc = require('./wptc.js');28var test = new wptc.wptc();29var testBuffer = wptc.prototype.makeI420_4x2();30console.log(testBuffer);31var wptc = require('./wptc.js');32var test = new wptc.wptc();33var testBuffer = wptc.prototype.makeI420_4x2();34console.log(testBuffer);35var wptc = require('./wptc.js');36var test = new wptc.wptc();37var testBuffer = wptc.makeI420_4x2();38console.log(testBuffer);39var wptc = require('./wptc.js');40var test = new wptc.wptc();41var testBuffer = wptc.prototype.makeI420_4x2();42console.log(testBuffer);43var wptc = require('./wptc.js');

Using AI Code Generation

1wpt = require('wpt');2var wpt = new WebPageTest('www.webpagetest.org');3var i420 = wpt.makeI420_4x2(2,2,2,2,2,2,2,2);4console.log(i420);5wpt = require('wpt');6var wpt = new WebPageTest('www.webpagetest.org');7var i420 = wpt.makeI420_4x2(2,2,2,2,2,2,2,2);8console.log(i420);9wpt = require('wpt');10var wpt = new WebPageTest('www.webpagetest.org');11var i420 = wpt.makeI420_4x2(2,2,2,2,2,2,2,2);12console.log(i420);13wpt = require('wpt');14var wpt = new WebPageTest('www.webpagetest.org');15var i420 = wpt.makeI420_4x2(2,2,2,2,2,2,2,2);16console.log(i420);17wpt = require('wpt');18var wpt = new WebPageTest('www.webpagetest.org');19var i420 = wpt.makeI420_4x2(2,2,2,2,2,2,2,2);20console.log(i420);

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