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RTP over UDP MultiCast
This modality is almost identical to the "RTP over UDP Unicast" case. The only difference is that
the data is sent to multiple receivers instead of a single one using UDP multicasting.
UDP multicasting uses the "IP multicast" technique described in RFC 1112.
In this technique, the sender sends the data to a special multicast address. The data is then sent
by the routing protocols to receivers that previously informed the network that they are
interested in the given multicast address. IP multicast is thus a subscription-based technique.
RTP interleaved in RTSP over HTTP
This modality is almost identical to the "RTP interleaved in RTSP over TCP" modality. The only
difference is that instead of being directly sent on the TCP stream, the RTP and RTSP packets are
first encapsulated in HTTP.
HTTP being a widely used protocol over the internet, encapsulating the data inside HTTP allows
it to pass through firewalls.
Moreover, encapsulating the data inside HTTP allows taking advantage of the TLS Protocol to
secure the media stream.
Since HTTP is based on TCP, this modality can also be categorized as reliable.
RTP Transport Media Types
RTP can transport different media types, each coming with a corresponding sub-norm of RTP.
Picolo.net products implement the following sub-norms of RTP:
RTP Payload Format for H.264 Video
The RFC 3984 describes the methodology used to encapsulate H264 (MPEG-4 Part 10) data in a
RTP stream.
RTP Payload Format for JPEG-compressed Video
The RFC 2435 describes the methodology used to encapsulate JPEG-compressed Video data in a
RTP stream.
Network Specifications
LAN
interface characteristics and Network protocols
Characteristics
Description
LAN interface
1 x Ethernet 10BASE-T/100BASE-TX/1000BASE-T,
automatic speed negotiation
LAN connector
1 x RJ45 with Link and Activity LED indicators
Picolo.net
Getting Started
