Module header 

The four-byte header common to every RTCP packet. The RTCP header.

Four bytes on every packet: version and padding flags, a 5-bit count whose meaning depends on the packet type, the PacketType itself, and a length in 32-bit words. The *_SHIFT and *_MASK constants describe how the flags pack into the first octet.

The length field is why RTCP is compound: several packets can be concatenated in one datagram and walked by stepping over each header’s length.

Structs

Header

A Header is the common header shared by all RTCP packets

Enums

PacketType

PacketType specifies the type of an RTCP packet RTCP packet types registered with IANA. See: https://www.iana.org/assignments/rtp-parameters/rtp-parameters.xhtml#rtp-parameters-4

Constants

COUNT_MASK

Bit mask of the report/source count field.

COUNT_MAX

The largest report count the 5-bit field can hold.

COUNT_SHIFT

Bit offset of the report/source count field.

FIR_MIN_OCTET_COUNT

The smallest valid FIR packet, in bytes.

FORMAT_CCFB

FMT value for CCFB (Congestion Control Feedback) per RFC 8888

FORMAT_FIR

Transport and Payload specific feedback messages overload the count field to act as a message type. those are listed here

FORMAT_PLI

Transport and Payload specific feedback messages overload the count field to act as a message type. those are listed here

FORMAT_REMB

Transport and Payload specific feedback messages overload the count field to act as a message type. those are listed here

FORMAT_RRR

Transport and Payload specific feedback messages overload the count field to act as a message type. those are listed here

FORMAT_SLI

Transport and Payload specific feedback messages overload the count field to act as a message type. those are listed here

FORMAT_TCC

Transport and Payload specific feedback messages overload the count field to act as a message type. those are listed here. https://tools.ietf.org/html/draft-holmer-rmcat-transport-wide-cc-extensions-01#page-5

FORMAT_TLN

Transport and Payload specific feedback messages overload the count field to act as a message type. those are listed here

HEADER_LENGTH

Length of the RTCP header in bytes.

PADDING_MASK

Bit mask of the padding flag once shifted.

PADDING_SHIFT

Bit offset of the padding flag.

RTP_VERSION

The RTP/RTCP version this crate speaks.

SDES_MAX_OCTET_COUNT

The longest SDES item value, bounded by its one-byte length field.

SSRC_LENGTH

Length of an SSRC in bytes.

VERSION_MASK

Bit mask of the version field once shifted.

VERSION_SHIFT

Bit offset of the version field in the first header octet.