title: Is it possible to route AVAssetWriter to a network stream in iOS4?
body: <p>AVAssetWriter takes a file URL as an argument and writes buffers appended to its AVAssetWriterInput to that file.</p>
  
  <pre><code>AVAssetWriter* assetWriter = [[AVAssetWriter alloc]
      initWithURL:[NSURL URLWithString:@"...fileURL..."]
      fileType:AVFileTypeMPEG4
      error:&amp;error];
  </code></pre>
  
  <p>If a network URL is specified (i.e. RTSP - a server expecting a live streaming source), an exception is thrown as a file-based URL is required.</p>
  
  <p>Is there another way of accessing the asset writer output?  I want to take advantage of the integrated H.264 encoding and just access the encoded data bit by bit to stream it over the network.</p>