* Buffered eestream EncodeReader
* Extracted fillBuffer() helper function
* Slow channels will be closed if there are still at least k fast channels
* Doc comment for maxBufferMemory
* Use timer more efficiently
* Timer initialization should be inside the for-loop
* Parallel copy of encoded data to reader buffer channels
* Transfer input read errors to output encoded readers
* minimum and optimum thresholds
* Use time.AfterFunc
* Simplify error handling in constructor
