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suissa/camera.html

Created October 10, 2015 13:16
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Uso da camera com HTML5
Raw
camera.html
<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="UTF-8" />
<title>Videochat, step 1</title>
</head>
<body>
<video id="video" width="640" height="480" autoplay></video>
<button id="snap">Snap Photo</button>
<canvas id="canvas" width="640" height="480"></canvas>
<script>
// Put event listeners into place
window.addEventListener("DOMContentLoaded", function() {
// Grab elements, create settings, etc.
var canvas = document.getElementById("canvas"),
context = canvas.getContext("2d"),
video = document.getElementById("video"),
videoObj = { "video": true },
errBack = function(error) {
console.log("Video capture error: ", error.code);
};
// Trigger photo take
document.getElementById("snap").addEventListener("click", function() {
var canvas = document.getElementById("canvas"),
context = canvas.getContext("2d");
context.drawImage(video, 0, 0, 640, 480);
});
// Put video listeners into place
if(navigator.getUserMedia) { // Standard
navigator.getUserMedia(videoObj, function(stream) {
video.src = stream;
video.play();
}, errBack);
} else if(navigator.webkitGetUserMedia) { // WebKit-prefixed
navigator.webkitGetUserMedia(videoObj, function(stream){
video.src = window.webkitURL.createObjectURL(stream);
video.play();
}, errBack);
}
else if(navigator.mozGetUserMedia) { // Firefox-prefixed
navigator.mozGetUserMedia(videoObj, function(stream){
video.src = window.URL.createObjectURL(stream);
video.play();
}, errBack);
}
}, false);
</script>
</body>
</html>
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