Interpret raw image data from Android Camera onPictureTaken(byte[] data)

I'm using the Camera class to take a picture and want to do some processing on the image inside onPict开发者_如何转开发ureTaken. How can I interpret the byte array? Is it in RGB format or something else?

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References say it depends on Camera.Parameters (Camera.Parameters), and in this post (Re: FileOutPutstream code from onPictureTaken) they say that you must use the jpeg callback, so I guess it's jpeg.

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mCamera.takePicture(null, null,mPictureCallbackRaw);

where mPictureCallbackRaw is the instance of Camera.PictureCallback