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| (Empty) | |
| 1 <!DOCTYPE html> |
| 2 <html> |
| 3 <head> |
| 4 <script src="../../resources/js-test.js"></script> |
| 5 </head> |
| 6 <body> |
| 7 <p id="description"></p> |
| 8 <div id="console"></div> |
| 9 <canvas id="canvas_source"></canvas> |
| 10 <script> |
| 11 description("Exercises the potential events on CanvasCaptureMediaStream."); |
| 12 |
| 13 window.jsTestIsAsync = true; |
| 14 |
| 15 var canvas = document.getElementById('canvas_source'); |
| 16 var stream; |
| 17 var track; |
| 18 |
| 19 function onVideoPlay() { |
| 20 testPassed('Video play callback succeeded.'); |
| 21 drawToCanvas(canvas); |
| 22 }; |
| 23 |
| 24 function onVideoCanPlayThrough() { |
| 25 testPassed('Video canplaythrough callback succeeded.'); |
| 26 finishJSTest(); |
| 27 }; |
| 28 |
| 29 function drawToCanvas(canvas) { |
| 30 testPassed('Drawing to canvas.'); |
| 31 var ctx = canvas.getContext("2d"); |
| 32 ctx.strokeStyle="#FF0204"; |
| 33 ctx.beginPath(); |
| 34 ctx.moveTo(0,0); |
| 35 ctx.lineTo(100, 100); |
| 36 ctx.stroke(); |
| 37 }; |
| 38 |
| 39 function playMediaStream() { |
| 40 shouldBe('stream.getVideoTracks().length', '1'); |
| 41 track = stream.getVideoTracks()[0]; |
| 42 shouldBeEqualToString('track.readyState', 'live'); |
| 43 |
| 44 var video = document.createElement('video'); |
| 45 try { |
| 46 video.src = window.URL.createObjectURL(stream); |
| 47 testPassed('Plugged stream to video tag.'); |
| 48 } catch(e) { |
| 49 testFailed('Exception plugging stream to <video>: ' + e); |
| 50 finishJSTest(); |
| 51 } |
| 52 video.addEventListener("play", onVideoPlay); |
| 53 video.addEventListener("canplaythrough", onVideoCanPlayThrough); |
| 54 video.play(); |
| 55 }; |
| 56 |
| 57 try { |
| 58 stream = canvas.captureStream(); |
| 59 testPassed('Got a stream from canvas.'); |
| 60 } catch (e) { |
| 61 testFailed('Exception calling captureStream(): ' + e); |
| 62 finishJSTest(); |
| 63 } |
| 64 if (stream) { |
| 65 playMediaStream(); |
| 66 } |
| 67 |
| 68 </script> |
| 69 </body> |
| 70 </html> |
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Chromium Code Reviews
Issue 1467103003:
Basic use implementation for MediaStream from Canvas: captureStream() (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master