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Unified Diff: content/test/data/media/blackwhite.html

Issue 398823004: Have media content and chrome browser tests load data from media/test/data (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 5 months ago
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Index: content/test/data/media/blackwhite.html
diff --git a/content/test/data/media/blackwhite.html b/content/test/data/media/blackwhite.html
deleted file mode 100644
index 6b9d049865637c39ccd6eb800f578936504a55de..0000000000000000000000000000000000000000
--- a/content/test/data/media/blackwhite.html
+++ /dev/null
@@ -1,231 +0,0 @@
-<!DOCTYPE html>
-<html>
- <head>
- <style>
- body {
- color: white;
- background-color: black;
- }
- </style>
- </head>
- <body onload="main()">
- <div id="buttons"></div>
- <table>
- <tr>
- <td>Image</td>
- <td id="video_header"></td>
- <td>Absolute Diff</td>
- <td>Different Pixels</td>
- </tr>
- <tr>
- <td><img src="blackwhite.png"></div>
- <td><video autoplay></video></div>
- <td><canvas id="diff"></canvas></td>
- <td><canvas id="mask"></canvas></td>
- </tr>
- </div>
-
- <p id="result"></p>
-
- <script>
- function log(str) {
- document.getElementById('result').textContent = str;
- console.log(str);
- }
-
- function loadVideo(name) {
- var videoElem = document.querySelector('video');
- videoElem.src = 'blackwhite_' + name;
-
- document.getElementById('video_header').textContent = name;
- videoElem.addEventListener('ended', onVideoEnded);
- }
-
- function onVideoEnded(e) {
- document.title = verifyVideo() ? 'ENDED' : 'FAILED';
- }
-
- function onVideoError(e) {
- document.title = 'ERROR';
- document.getElementById('diff').style.visibility = 'hidden';
- document.getElementById('mask').style.visibility = 'hidden';
- log('Error playing video: ' + e.target.error.code + '.');
- }
-
- function main() {
- // Programatically create buttons for each clip for manual testing.
- var buttonsElem = document.getElementById('buttons');
-
- function createButton(name) {
- var buttonElem = document.createElement('button');
- buttonElem.textContent = name;
- buttonElem.addEventListener('click', function() {
- loadVideo(name);
- });
- buttonsElem.appendChild(buttonElem);
- }
-
- var VIDEOS = [
- 'yuv420p.ogv',
- 'yuv422p.ogv',
- 'yuv444p.ogv',
- 'yuv420p.webm',
- 'yuv444p.webm',
- 'yuv420p.mp4',
- 'yuvj420p.mp4',
- 'yuv422p.mp4',
- 'yuv444p.mp4',
- 'yuv420p.avi'
- ];
-
- for (var i = 0; i < VIDEOS.length; ++i) {
- createButton(VIDEOS[i]);
- }
-
- // Video event handlers.
- var videoElem = document.querySelector('video');
- videoElem.addEventListener('error', onVideoError);
-
- // Check if a query parameter was provided for automated tests.
- if (window.location.search.length > 1) {
- loadVideo(window.location.search.substr(1));
- } else {
- // If we're not an automated test, compute some pretty diffs.
- document.querySelector('video').addEventListener('ended',
- computeDiffs);
- }
- }
-
- function getCanvasPixels(canvas) {
- try {
- return canvas.getContext('2d')
- .getImageData(0, 0, canvas.width, canvas.height)
- .data;
- } catch(e) {
- var message = 'ERROR: ' + e;
- if (e.name == 'SecurityError') {
- message += ' Couldn\'t get image pixels, try running with ' +
- '--allow-file-access-from-files.';
- }
- log(message);
- }
- }
-
- function verifyVideo() {
- var videoElem = document.querySelector('video');
- var offscreen = document.createElement('canvas');
- offscreen.width = videoElem.videoWidth;
- offscreen.height = videoElem.videoHeight;
- offscreen.getContext('2d')
- .drawImage(videoElem, 0, 0, offscreen.width, offscreen.height);
-
- videoData = getCanvasPixels(offscreen);
- if (!videoData)
- return false;
-
- // Check the color of a givel pixel |x,y| in |imgData| against an
- // expected value, |expected|, with up to |allowedError| difference.
- function checkColor(imgData, x, y, stride, expected, allowedError) {
- for (var i = 0; i < 3; ++i) {
- if (Math.abs(imgData[(x + y * stride) * 4 + i] - expected) >
- allowedError) {
- return false;
- }
- }
- return true;
- }
-
- // Check one pixel in each quadrant (in the upper left, away from
- // boundaries and the text, to avoid compression artifacts).
- // Also allow a small error, for the same reason.
-
- // TODO(mtomasz): Once code.google.com/p/libyuv/issues/detail?id=324 is
- // fixed, the allowedError should be decreased to 1.
- var allowedError = 2;
-
- return checkColor(videoData, 30, 30, videoElem.videoWidth, 0xff,
- allowedError) &&
- checkColor(videoData, 150, 30, videoElem.videoWidth, 0x00,
- allowedError) &&
- checkColor(videoData, 30, 150, videoElem.videoWidth, 0x10,
- allowedError) &&
- checkColor(videoData, 150, 150, videoElem.videoWidth, 0xef,
- allowedError);
- }
-
- // Compute a standard diff image, plus a high-contrast mask that shows
- // each differing pixel more visibly.
- function computeDiffs() {
- var diffElem = document.getElementById('diff');
- var maskElem = document.getElementById('mask');
- var videoElem = document.querySelector('video');
- var imgElem = document.querySelector('img');
-
- var width = imgElem.width;
- var height = imgElem.height;
-
- if (videoElem.videoWidth != width || videoElem.videoHeight != height) {
- log('ERROR: video dimensions don\'t match reference image ' +
- 'dimensions');
- return;
- }
-
- // Make an offscreen canvas to dump reference image pixels into.
- var offscreen = document.createElement('canvas');
- offscreen.width = width;
- offscreen.height = height;
-
- offscreen.getContext('2d').drawImage(imgElem, 0, 0, width, height);
- imgData = getCanvasPixels(offscreen);
- if (!imgData)
- return;
-
- // Scale and clear diff canvases.
- diffElem.width = maskElem.width = width;
- diffElem.height = maskElem.height = height;
- var diffCtx = diffElem.getContext('2d');
- var maskCtx = maskElem.getContext('2d');
- maskCtx.clearRect(0, 0, width, height);
- diffCtx.clearRect(0, 0, width, height);
-
- // Copy video pixels into diff.
- diffCtx.drawImage(videoElem, 0, 0, width, height);
-
- var diffIData = diffCtx.getImageData(0, 0, width, height);
- var diffData = diffIData.data;
- var maskIData = maskCtx.getImageData(0, 0, width, height);
- var maskData = maskIData.data;
-
- // Make diffs and collect stats.
- var meanSquaredError = 0;
- for (var i = 0; i < imgData.length; i += 4) {
- var difference = 0;
- for (var j = 0; j < 3; ++j) {
- diffData[i + j] = Math.abs(diffData[i + j] - imgData[i + j]);
- meanSquaredError += diffData[i + j] * diffData[i + j];
- if (diffData[i + j] != 0) {
- difference += diffData[i + j];
- }
- }
- if (difference > 0) {
- if (difference <= 3) {
- // If we're only off by a bit per channel or so, use darker red.
- maskData[i] = 128;
- } else {
- // Bright red to indicate a different pixel.
- maskData[i] = 255;
- }
- maskData[i+3] = 255;
- }
- }
-
- meanSquaredError /= width * height;
- log('Mean squared error: ' + meanSquaredError);
- diffCtx.putImageData(diffIData, 0, 0);
- maskCtx.putImageData(maskIData, 0, 0);
- document.getElementById('diff').style.visibility = 'visible';
- document.getElementById('mask').style.visibility = 'visible';
- }
- </script>
- </body>
-</html>
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