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How to use testCreateImageBitmapFromVideoFrameVP9Decoder method in wpt

Best JavaScript code snippet using wpt

videoFrame-createImageBitmap.https.any.js

Source:videoFrame-createImageBitmap.https.any.js

1// META: global=window,dedicatedworker2// META: script=/webcodecs/utils.js3function testCreateImageBitmapFromVideoFrameVP9Decoder() {4  // Prefers hardware decoders by setting video size as large as 720p.5  const width = 1280;6  const height = 720;7  let canvas = new OffscreenCanvas(width, height);8  let ctx = canvas.getContext('2d');9  ctx.fillStyle = 'rgb(50, 100, 150)';10  ctx.fillRect(0, 0, width, height);11  return createImageBitmap(canvas).then((fromImageBitmap) => {12    let videoFrame = new VideoFrame(fromImageBitmap, {13      timestamp: 014    });15    return new Promise((resolve, reject) => {16      let processVideoFrame = (frame) => {17        createImageBitmap(frame).then((toImageBitmap) => {18          let myCanvas = new OffscreenCanvas(width, height);19          let myCtx = myCanvas.getContext('2d');20          myCtx.drawImage(toImageBitmap, 0, 0);21          let tolerance = 10;22          try {23            testCanvas(myCtx, width, height, kSRGBPixel, null,24              (actual, expected) => {25                assert_approx_equals(actual, expected, tolerance);26              }27            );28          } catch (error) {29            reject(error);30          }31          resolve('Done.');32        });33      };34      const decoderInit = {35        output: processVideoFrame,36        error: (e) => {37          reject(e);38        }39      };40      const encodedVideoConfig = {41        codec: "vp09.00.10.08",42      };43      let decoder = new VideoDecoder(decoderInit);44      decoder.configure(encodedVideoConfig);45      let processVideoChunk = (chunk) => {46        decoder.decode(chunk);47        decoder.flush();48      };49      const encoderInit = {50        output: processVideoChunk,51        error: (e) => {52          reject(e);53        }54      };55      const videoEncoderConfig = {56        codec: "vp09.00.10.08",57        width: width,58        height: height,59        bitrate: 10e6,60        framerate: 3061      };62      let encoder = new VideoEncoder(encoderInit);63      encoder.configure(videoEncoderConfig);64      encoder.encode(videoFrame, {65        keyFrame: true66      });67      encoder.flush();68    });69  });70}71promise_test(() => {72  return testCreateImageBitmapFromVideoFrameVP9Decoder();...

Using AI Code Generation

1const video = document.createElement('video');2video.src = 'vp9.webm';3video.onloadedmetadata = () => {4  const canvas = document.createElement('canvas');5  canvas.width = video.videoWidth;6  canvas.height = video.videoHeight;7  const ctx = canvas.getContext('bitmaprenderer');8  video.onseeked = () => {9    video.requestVideoFrameCallback((frame) => {10      ctx.transferFromImageBitmap(frame.createImageBitmap());11    });12  };13  video.play();14};15const { testCreateImageBitmapFromVideoFrameVP9Decoder } = await import(

Using AI Code Generation

1testCreateImageBitmapFromVideoFrameVP9Decoder().then(function(imageBitmap) {2});3function testCreateImageBitmapFromVideoFrameVP9Decoder() {4  return new Promise(function(resolve, reject) {5    var videoFrame = new VideoFrame(...);6    var imageBitmap = createImageBitmap(videoFrame);7    if (imageBitmap) {8      resolve(imageBitmap);9    } else {10      reject("ImageBitmap is not created");11    }12  });13}

Using AI Code Generation

1import {testCreateImageBitmapFromVideoFrameVP9Decoder} from './wpt.js';2testCreateImageBitmapFromVideoFrameVP9Decoder();3export async function testCreateImageBitmapFromVideoFrameVP9Decoder() {4  const video = document.createElement('video');5  video.src = 'vp9.webm';6  video.muted = true;7  video.loop = true;8  video.play();9  await new Promise(resolve => {10    video.onloadedmetadata = resolve;11  });12  const canvas = document.createElement('canvas');13  canvas.width = 1280;14  canvas.height = 720;15  const ctx = canvas.getContext('2d');16  ctx.drawImage(video, 0, 0);17  const frame = ctx.getImageData(0, 0, 1280, 720);18  const videoFrame = new VideoFrame(frame, {timestamp: 0});19  const imageBitmap = await createImageBitmap(videoFrame, {imageOrientation: 'flipY'});20  const bitmapRenderer = new BitmapRenderer(imageBitmap);21  const bitmap = await bitmapRenderer.transferToImageBitmap();22  const bitmapCtx = bitmap.getContext('2d');23  const bitmapData = bitmapCtx.getImageData(0, 0, 1280, 720);24  for (let i = 0; i < bitmapData.data.length; i++) {25    if (bitmapData.data[i] != frame.data[i]) {26      return false;27    }28  }29  return true;30}

Using AI Code Generation

1const testCreateImageBitmapFromVideoFrameVP9Decoder = async () => {2  const video = document.querySelector('video');3  const canvas = document.querySelector('canvas');4  const ctx = canvas.getContext('2d');5  const canvas2 = document.querySelector('canvas2');6  const ctx2 = canvas2.getContext('2d');7  const video2 = document.querySelector('video2');8  const canvas3 = document.querySelector('canvas3');9  const ctx3 = canvas3.getContext('2d');10  const canvas4 = document.querySelector('canvas4');11  const ctx4 = canvas4.getContext('2d');12  const video3 = document.querySelector('video3');13  const canvas5 = document.querySelector('canvas5');14  const ctx5 = canvas5.getContext('2d');15  const canvas6 = document.querySelector('canvas6');16  const ctx6 = canvas6.getContext('2d');17  const video4 = document.querySelector('video4');18  const canvas7 = document.querySelector('canvas7');19  const ctx7 = canvas7.getContext('2d');20  const canvas8 = document.querySelector('canvas8');21  const ctx8 = canvas8.getContext('2d');22  const video5 = document.querySelector('video5');

Using AI Code Generation

1const testCreateImageBitmapFromVideoFrameVP9Decoder = async () => {2  const testVideo = document.createElement('video');3  testVideo.muted = true;4  testVideo.loop = true;5  testVideo.play();6  const frame = await testVideo.requestVideoFrameCallback((frame, metadata) => {7    console.log(frame);8    return frame;9  });10  const imageBitmap = await createImageBitmap(frame);11  console.log(imageBitmap);12};13function testCreateImageBitmapFromVideoFrameVP9Decoder(t) {14  promise_test(async t => {15    const testVideo = document.createElement('video');16    testVideo.muted = true;17    testVideo.loop = true;18    testVideo.play();19    const frame = await testVideo.requestVideoFrameCallback((frame, metadata) => {20      console.log(frame);21      return frame;22    });23    const imageBitmap = await createImageBitmap(frame);24    console.log(imageBitmap);25  }, 'Test that createImageBitmap from VideoFrame works');26}27promise_test(async t => {28  const testVideo = document.createElement('video');29  testVideo.muted = true;30  testVideo.loop = true;31  testVideo.play();32  const frame = await testVideo.requestVideoFrameCallback((frame, metadata) => {33    console.log(frame);34    return frame;35  });36  const imageBitmap = await createImageBitmap(frame);37  console.log(imageBitmap);38}, 'Test that createImageBitmap from VideoFrame works');

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