title: Fast way to compress binary data?
body: <p>I have some binary data (pixel values) in a int[] (or a byte[] if you prefer) that I want to write to disk in an Android app. I only want to use a small amount of processing time but want as much compression as I can for this. What are my options?</p>
  
  <p>In many cases the array will contain lots of consecutive zeros so something simple and fast like RLE compression would probably work well. I can't see any Android API functions for this though. If I have to loop over the array in Java, this will be very slow as there is no JIT on most Android devices. I could use the NDK but I'd rather avoid this if I can.</p>