在ActionScript 3中将摄像机输入另存为GIF

Question

I want to create an animated gif about 15 seconds long directly from the camera's input.

At the moment I've done this by taking images every few milliseconds and I plan on processing these images server-side using something like ffmpeg to create a final gif.

Is there a way to have flash do the whole thing?

Answer 1

There's a gif library to do this. I'm not terribly sure how it works, but looking at the API it seems as though it's something like:

var encoder:GIFEncoder = new GIFEncoder();

encoder.start();
encoder.addFrame(bitmapData); // for each frame
encoder.finish();

https://github.com/audreyt/as3gif

Update

I was able to encode to gif using the following function, which takes an Array of BitmapData and returns a ByteArray.

public function encode(frames:Array):ByteArray
{
    var encoder:GIFEncoder = new GIFEncoder();

    encoder.start();

    for (var i:int = 0; i < frames.length; i++)
    {
        encoder.addFrame(frames[i]);
    }

    encoder.finish();

    return encoder.stream;
}