Fast or asynchronous AS3 JPEG encoding

Posted by Bart van Heukelom on Stack Overflow See other posts from Stack Overflow or by Bart van Heukelom
Published on 2010-03-24T16:41:22Z Indexed on 2010/03/24 16:43 UTC
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I'm currently using the JPGEncoder from the AS3 core lib to encode a bitmap to JPEG

 var enc:JPGEncoder = new JPGEncoder(90);
 var jpg:ByteArray = enc.encode(bitmap);

Because the bitmap is rather large (3000 x 2000) the encoding takes a long while (about 20 seconds), causing the application to seemingly freeze while encoding. To solve this, I need either:

  • An asynchronous encoder so I can keep updating the screen (with a progress bar or something) while encoding
  • An alternative encoder which is simply faster

Is either possible?

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