*
* DESCRIPTION
*
* This function may be used to change the underlaying stream in the
* packet stream indicated by `packet_stream'. Note that the old
* stream will not be used after calling this function. The caller is
*
* DESCRIPTION
*
* This function may be used to change the underlaying stream in the
* packet stream indicated by `packet_stream'. Note that the old
* stream will not be used after calling this function. The caller is