Here is a list of all documented namespaces with brief descriptions:
Nbroadcom | Broadcom specific Video Core and OpenMAX IL stuff |
Nnxcip | VMS Camera Integration Plugin API (c++) |
Nnxpl | VMS dynamic plugin API (c++) |
Nrpi_cam | Raspberry Pi camera unit and configuration |
Nrpi_omx | Raspberry Pi OpenMAX IL layer |