ELC

GREAT TUTORIAL!! i wanted to say thank you for that. i have another problem. how can i specify where to store the encoded JPG without using rails

What language were you thinking of using to output the JPG?

You could make the request to a PHP script with somethink like the following…


$jpg = $GLOBALS["HTTP_RAW_POST_DATA"];
header('Content-Type: image/jpeg');
header("Content-Disposition: attachment; filename=".$_GET['filename']);
echo $jpg;


Where $_GET['filename'] comes from the get paramters of the request.

Does that help?

The PHP code that Cary Dunn provides above works fine, with some modification for saving it to a file.

< ?
/*
*** THIS CODE IS UNSAFE FOR PRODUCTION ***
This code does absolutely no error checking on the validity of the
expected jpg file coming through. It should be checking that the data
coming in is in fact a valid JPEG file of appropriate dimensions.
*/
$jpg = $GLOBALS["HTTP_RAW_POST_DATA"];
$filename = 'uploads/'.date('r').'.jpg';
file_put_contents($filename, $jpg);
echo "saved to ".$filename;
?>


SORRY, I’M A BIT OF A NEWBIE WHEN IT COMES TO THIS STUFF. YOU WOULD NEED TO CHANGE THE URLREQUEST IN THE FLASH FILE TO RUN THIS PHP SCRIPT, WOULDN’T YOU? AND, IS USING A “LOADER” THE BEST METHOD? OR, WOULD YOU JUST USE “SENDTOURL?”

This code is great!! I am experiencing a problem though. I am using it to capture a video object which is bound to a RTMP stream via netstream/netconnection. Every time I run the above code to capture an image it saves a file with the correct dimensions of the video object (240×180), but image itself is only 160×120 on top of a white canvas. Does this ring any bells?? Any idea whats going on??

Hi I would like to try and just write straight to file from running my flash in an app. I wont be running my classes in a swf in a browser, instead it will be just running on one machine in an art installation. I would like to do something similar to this, but I just need to write straight to a file in a folder, without any sort of prompt or server side scripting. Is this possible?

@Sarah : Reading and writing to local files was added in FP10, so if you are comfortable using 10 (>60% of machines at beginning of 2009) you can checkout the FileReference API.

http://www.mikechambers.com/blog/2008/08/20/reading-and-writing-local-files-in-flash-player-10/ is a good article starter article as well on the topic.

If you need any more help let me know and I can put together an example post.

Thanks man, Great Stuff, this is how i get it worked

image = Magick::Image.from_blob(request.body.read)

image[0].write(“#{RAILS_ROOT}/public/test.jpg”)

you don’t need RMagick for this to work:

File.open(“cockpit_test.jpg”, “wb”) { |f| f.write(request.body.read) }

will work fine

hi

i am new to as3. thanku for the post. can u show an example in which i can send a bitmap as email.thanku once again

Pushpa

Thanks Cary dunn.

Hi, thabks a lot. i have one question, instead of PHP is posible get the image in javascript? is it possible?

by the way, thanks again.

Hi there.

I’m exporting a JPG using AS3/PHP, but my server version is 4.x and it doesn’t work with the function “file_put_contents”

Somebody can’t any idea how to resolve it? (I can’t change of server provider by the momment)

Many thanks!

( Somebody HAVE any idea…)

Great article indeed…! I got a little problem while dealing it.
I wanted to capture an image and send it to a .aspx file.
Fine! I captured the video into a bitmap data object and encoded into a byte Array.
If I print the byte array it displays ÿØÿà. I dont know what is wrong with the code..

Here is What I have done so far.

import com.adobe.images.JPGEncoder;
//package used to encode the bitmapdata into jpg format..
/* The following lines of code adds camera and attaches camera to the video*/
var cam:Camera;
var vid:Video;
var bitmapData:BitmapData;
var bitmap:Bitmap;
startCam();
function startCam()
{
try
{

cam = Camera.getCamera();
vid = new Video(320,240);

cam.setQuality(0,80);
cam.setMode(320,240,24,true);
vid.attachCamera(cam);
vid.x = 0;
vid.y = 0;
addChildAt(vid,0);

//adds bitmap data and draws it into bitmadata

bitmapData = new BitmapData(vid.width,vid.height);
bitmap = new Bitmap(bitmapData);
bitmap.x = 0;
bitmap.y = 0;
var buttons:Buttons = new Buttons();
addChild(buttons);
buttons.x = 160;
buttons.y = 208;
errorMes.visible = false;
}
catch(e:Error)
{
errorMes.visible = true;
var retryBtn:Retry = new Retry();
retryBtn.x = 160;
retryBtn.y = 170;
addChild(retryBtn);
retryBtn.addEventListener(MouseEvent.CLICK,retryConnecting);

}
}
function retryConnecting(me:MouseEvent)
{
me.target.removeEventListener(MouseEvent.CLICK,retryConnecting);
me.target.parent.removeChild(me.target);
startCam();

}

function captureImage()
{
addChildAt(bitmap,1);

bitmapData.draw(vid);
}
function cancelImage()
{
removeChild(bitmap);
}

function saveImage()
{
var encoded_jpg:JPGEncoder = new JPGEncoder(100);
var binary_jpg:ByteArray = encoded_jpg.encode(bitmapData);
var string_jpg:String = binary_jpg.toString();
output.text = binary_jpg.toString();
var header:URLRequestHeader = new URLRequestHeader (“Content-type”, “application/octet-stream”);
var request:URLRequest = new URLRequest(“http://localhost/webcampicture/uploadpic.aspx”);
request.requestHeaders.push(header);
request.method = URLRequestMethod.POST;
request.data = string_jpg;

var loader:URLLoader = new URLLoader();
loader.load(request);
}