Jozef Chúťka's blog

While playing with pixel bender, I created some simple sahders that when combined, reminds me of winamp visualizations effects. Feel free to use any in your own projects.

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Have you ever heard about inline images? Inline images use the data URI scheme to embed images directly within web pages. As defined by RFC 2397, data URIs are designed to embed small data items as “immediate” data, as if they were referenced externally. This basicaly means, you can insert base64 encoded byte code of any image directly into html file. Using inline images saves HTTP requests over externally referenced objects. Data URIs can potentially store any type of data, not just images!

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Recently I was trying to make some noise with flash, and soon I realized that audio processing is not that easy thing as it may look like. Anyway here is a list of some interesting articles and examples with gain, equalizer, pitch, effects, pixel bender, I have came across while gathering information.

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It is a little wonder to me how flash player communicates with JavaScript. Calls are fully synchronous, it works as those (fp and js) were fully integrated into each other. To simulate this lets test some simple flow:

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Have you ever tought about accessing DOM from ActionScript? In fact, you can do it and even far more. You can create and call JavaScript methods and objects, access cookies, change styles… All you need is correct AllowScriptAccess parameter within your flash object. No framework needed here, no hacks, ExternalInterface takes care.

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onConference is flash application allowing individuals & businesses to meet face-to-face. Keep in touch with your friends, family and business associates via onConference chat or live video chat.

To be more specific, onConference is using RTMFP protocol, so your conferences, even those multiuser are p2p. Yes, any conference can join multiple users. I decided to use simpliest look-n-feel á la facebook and no pageflow, so you get connected immediately… You can find onConference on http://apps.facebook.com/onconference/, please let me know if you like it, any feedback welcomed .

Many of you have come accross the horrendous bug that happens with text input in flash when the swf is embedded with wmode=transparent/opaque. It has been much discussed (Firefox Bugzilla entry for this bug, Adobe Forum discussion, etc.), but it seems that in all the years that this bug has existed nothing much has been done. A lot of workarounds have been published, many of them based on custom key mapping etc… My workaround uses html element <input type=”text”> that is placed right over flex <mx:TextInput>. Html element is styled transparent (no design) so user will not notice.

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URL shortening is a technique where a provider makes a web page available under a very short URL in addition to the original address. There are hundreds of provider out there, but only a few of them provides public api and crossdomain.xml. I put toghether some of those that work and URLShorten class was created feel free to use it and enjoy

Update: jdem.cz, tinyurl.com, bit.ly, tr.im, is.gd providers implemented.

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Here is a quick tip for using … (rest) parameter in your code. It sometimes happens that you want to have your function called multiple times, when different events dispatched or even without any event dispatched. Properly you would create callback/handler functions for all events, that would call the required function. Or you can use … (rest) parameter to bypass arguments casting.

priate function init():void
{
    addEventListener(Event.ENTER_FRAME, doSomething);

    var timer:Timer = new Timer(500);
    timer.addEventListener(TimerEvent.TIMER, doSomething);
    timer.start();

    callLater(doSomething);
    doSomething();
}

private function doSomething(... rest):void
{
// whatever
}