code: @Implementation(minSdk = LOLLIPOP)
    protected void releaseOutputBuffer(int index, boolean render, boolean updatePTS, long timeNs) {
      if (reachedEos) {
        return;
      }
  
      makeInputBufferAvailable(index);
    }
docs: Triggers presentation of the corresponding input buffer for the given output buffer, if end of
  stream has not yet been signaled.