test_video_to_canvas.html (1686B)
1 <!DOCTYPE HTML> 2 <html> 3 <!-- 4 https://bugzilla.mozilla.org/show_bug.cgi?id=486646 5 --> 6 7 <head> 8 <title>Test for Bug 486646</title> 9 <script src="/tests/SimpleTest/SimpleTest.js"></script> 10 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> 11 <script type="text/javascript" src="manifest.js"></script> 12 </head> 13 <body> 14 <script class="testbody" type="text/javascript"> 15 16 var manager = new MediaTestManager; 17 18 function loaded(e) { 19 var v = e.target; 20 ok(v.readyState >= v.HAVE_CURRENT_DATA, 21 "readyState must be >= HAVE_CURRENT_DATA for " + v._name); 22 23 var canvas = document.createElement("canvas"); 24 canvas.width = v.videoWidth; 25 canvas.height = v.videoHeight; 26 document.body.appendChild(canvas); 27 var ctx = canvas.getContext("2d"); 28 try { 29 ctx.drawImage(v, 0, 0); 30 ok(true, "Shouldn't throw exception while drawing to canvas from video for " + v._name); 31 } catch (ex) { 32 ok(false, "Shouldn't throw exception while drawing to canvas from video for " + v._name); 33 } 34 35 v._finished = true; 36 v.remove(); 37 manager.finished(v.token); 38 } 39 40 function startTest(test, token) { 41 var type = getMajorMimeType(test.type); 42 if (type != "video") 43 return; 44 45 var v = document.createElement('video'); 46 v.token = token; 47 manager.started(token); 48 v.src = test.name; 49 v._name = test.name; 50 v._finished = false; 51 v.autoplay = true; 52 v.style.display = "none"; 53 v.addEventListener("ended", loaded); 54 document.body.appendChild(v); 55 } 56 57 SimpleTest.waitForExplicitFinish(); 58 SpecialPowers.pushPrefEnv({"set": [["media.cache_size", 40000]]}, beginTest); 59 function beginTest() { 60 manager.runTests(gSmallTests, startTest); 61 } 62 63 </script> 64 </pre> 65 66 </body> 67 </html>