RTP        +-----+------------------------+
Packet #1  | Hdr | Packetization unit #1  |
           +-----+------------------------+
RTP        +-----+--------------------------------------+
Packet #2  | Hdr | Packetization unit #2                |
           +-----+--------------------------------------+
RTP        +-----+--------------------------------------------------+
Packet #3  | Hdr | Packetization unit #3  (part 1/3)                |
           +-----+--------------------------------------------------+
RTP        +-----+--------------------------------------------------+
Packet #4  | Hdr | Packetization unit #3  (part 2/3)                |
           +-----+--------------------------------------------------+
RTP        +-----+----------------------------------------------+
Packet #5  | Hdr | Packetization unit #3  (part 3/3)            |
           +-----+----------------------------------------------+
             ...
RTP        +-----+-----------------------------------------+
Packet #P  | Hdr | Packetization unit #N  (part q/q)       |
           +-----+-----------------------------------------+