content/test/data/media/canvas_capture.html - Issue 2746973005: Reenable WebRtcCaptureFromElementBrowserTest.VerifyCanvasCaptureOffscreenCanvasCommitFrames

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Issue 2746973005: Reenable WebRtcCaptureFromElementBrowserTest.VerifyCanvasCaptureOffscreenCanvasCommitFrames (Closed)

Patch Set: Created 3 years, 9 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <html>	2 <html>

3 <head>	3 <head>

4 <title>Media Capture from Canvas Browser Test</title>	4 <title>Media Capture from Canvas Browser Test</title>

5 </head>	5 </head>

6 <body>	6 <body>

7 <div> Capture and playback from canvas elements.</div>	7 <div> Capture and playback from canvas elements.</div>

8 </body>	8 </body>

9 <script type="text/javascript" src="webrtc_test_utilities.js"></script>	9 <script type="text/javascript" src="webrtc_test_utilities.js"></script>

10 <script>	10 <script>

(...skipping 25 matching lines...) Expand all Loading...
36 function drawOffscreenCanvasCommit(canvas, drawCounter) {	36 function drawOffscreenCanvasCommit(canvas, drawCounter) {

37 var ctx = canvas.getContext('2d');	37 var ctx = canvas.getContext('2d');

38 ctx.fillStyle = 'green';	38 ctx.fillStyle = 'green';

39 ctx.fillRect(0, 0, canvas.width, canvas.height);	39 ctx.fillRect(0, 0, canvas.width, canvas.height);

40 ctx.commit();	40 ctx.commit();

41 checkForRedraw(canvas, drawCounter, drawOffscreenCanvasCommit);	41 checkForRedraw(canvas, drawCounter, drawOffscreenCanvasCommit);

42 };	42 };

43	43

44 function drawBitmapRenderer(canvas, drawCounter) {	44 function drawBitmapRenderer(canvas, drawCounter) {

45 var gl = canvas.getContext('bitmaprenderer');	45 var gl = canvas.getContext('bitmaprenderer');

46 var offscreen = new OffscreenCanvas(64, 48);	46 var offscreen = new OffscreenCanvas(canvas.width, canvas.height);

47 var ctx = offscreen.getContext('2d');	47 var ctx = offscreen.getContext('2d');

48 ctx.fillStyle = 'green';	48 ctx.fillStyle = 'green';

49 ctx.fillRect(0, 0, canvas.width, canvas.height);	49 ctx.fillRect(0, 0, canvas.width, canvas.height);

50 gl.transferFromImageBitmap(offscreen.transferToImageBitmap());	50 gl.transferFromImageBitmap(offscreen.transferToImageBitmap());

51 checkForRedraw(canvas, drawCounter, drawBitmapRenderer);	51 checkForRedraw(canvas, drawCounter, drawBitmapRenderer);

52 };	52 };

53	53

54 function testCanvasCapture(drawFunction) {	54 function testCanvasCapture(drawFunction) {

55 var canvas = document.createElement('canvas');	55 var canvas = document.createElement('canvas');

56 canvas.width = canvas.height = 64;	56 canvas.width = canvas.height = 64;

57 document.body.appendChild(canvas);

58	57

59 var stream = canvas.captureStream();	58 var stream = canvas.captureStream();

60 assertTrue(stream, 'Error creating MediaStream');	59 assertTrue(stream, 'Error creating MediaStream');

61 assertEquals(1, stream.getVideoTracks().length);	60 assertEquals(1, stream.getVideoTracks().length);

62 assertEquals(0, stream.getAudioTracks().length);	61 assertEquals(0, stream.getAudioTracks().length);

63	62

64 var recorded_events = 0;	63 var recorded_events = 0;

65 const recorder = new MediaRecorder(stream);	64 const recorder = new MediaRecorder(stream);

66 assertTrue(recorder, 'Error creating recorder out of the MediaStream');	65 assertTrue(recorder, 'Error creating recorder out of the MediaStream');

67	66

68 recorder.ondataavailable = function(event) {	67 recorder.ondataavailable = function(event) {

69 if (event.data.size > ON_DATA_AVAILABLE_THRESHOLD) {	68 if (event.data.size > ON_DATA_AVAILABLE_THRESHOLD) {

70 if (++recorded_events == NUMBER_OF_EVENTS_TO_RECORD)	69 if (++recorded_events == NUMBER_OF_EVENTS_TO_RECORD)

71 reportTestSuccess();	70 reportTestSuccess();

72 }	71 }

73 };	72 };

74	73

75 recorder.start(0);	74 recorder.start(0);

76 if (drawFunction.toString() == drawOffscreenCanvasCommit.toString()) {	75 if (drawFunction.toString() == drawOffscreenCanvasCommit.toString()) {

77 var offscreen = canvas.transferControlToOffscreen();	76 var offscreen = canvas.transferControlToOffscreen();

78 drawFunction(offscreen, 0);	77 drawFunction(offscreen, 0);

79 } else {	78 } else {

80 drawFunction(canvas, 0);	79 drawFunction(canvas, 0);

81 }	80 }

82 }	81 }

83	82

84 </script>	83 </script>

85 </body>	84 </body>

86 </html>	85 </html>

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