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SDP
Generic URI
ABNF Notation
Session Description
Addressing
generic rules
"a=" SDP Attributes
SDP attributes defined in
RFC 3611 – RTP Control Protocol Extended Reports
RFC 3611
–
Section 5.1
— see also:
IANA
a=
rtcp-xr
attribute-fields
=/
rtcp‑xr‑attrib
rtcp-xr-attrib
=
"
a=
" "
rtcp‑xr
" "
:
" [
xr‑format
*(
SP
xr‑format
) ]
CRLF
xr-format
=
pkt‑loss‑rle
/
pkt‑dup‑rle
/
pkt‑rcpt‑times
/
rcvr‑rtt
/
stat‑summary
/
voip‑metrics
/
; see
RFC 3611 – Section 5.1
pkt‑loss‑rle‑post
/
; see
RFC 5725
–
Section 4
multicast‑acq‑ext
/
; see
RFC 6332
–
Section 5
ecn‑summary‑par
/
; see
RFC 6679
–
Section 6.3
xr‑pdv‑block
/
; see
RFC 6798
–
Section 4
xr‑delay‑block
/
; see
RFC 6843
–
Section 4.1
xr‑bgl‑block
/
; see
RFC 6958
–
Section 5.1
xr‑tpid‑block
/
; see
RFC 6990
–
Section 4.1
xr‑pdc‑block
/
; see
RFC 7002
–
Section 4.1
xr‑bgd‑block
/
; see
RFC 7003
–
Section 5.1
xr‑bglss‑block
/
xr‑bgdss‑block
/
xr‑fiss‑block
/
; see
RFC 7004
–
Section 5.1
xr‑djb‑block
/
; see
RFC 7005
–
Section 5.1
xr‑discard‑rle
/
; see
RFC 7097
–
Section 5
xr‑discard‑bytes
/
; see
RFC 7243
–
Section 5
xr‑rfisd‑block
/
xr‑rfso‑block
/
; see
RFC 7244
–
Section 5.1
xr-mos-block
/
; see
RFC 7266
–
Section 4.1
xr‑conceal‑block
/
xr‑conc‑sec‑block
/
; see
RFC 7294
–
Section 5.1
xr‑tpd‑block
/
; see
RFC 7380
–
Section 4.1
xr‑prlr‑block
/
; see
RFC 7509
–
Section 4.1
xr-vlc-block
/
; see
RFC 7867
–
Section 5.1
xr‑ind‑bgd‑block
/
; see
RFC 8015
–
Section 5.1
format‑ext
pkt-loss-rle
=
"
pkt-loss-rle
" [ "
=
"
max‑size
]
pkt-dup-rle
=
"
pkt-dup-rle
" [ "
=
"
max‑size
]
pkt-rcpt-times
=
"
pkt-rcpt-times
" [ "
=
"
max‑size
]
rcvr-rtt
=
"
rcvr-rtt
" "
=
"
rcvr‑rtt‑mode
[ "
:
"
max‑size
]
rcvr-rtt-mode
=
"
all
" / "
sender
"
stat-summary
=
"
stat‑summary
" [ "
=
"
stat‑flag
*( "
,
"
stat‑flag
) ]
stat-flag
=
"
loss
" / "
dup
" / "
jitt
" / "
TTL
" / "
HL
"
voip-metrics
=
"
voip‑metrics
"
pkt-loss-rle-post
=
"
post‑repair‑loss‑rle
" [ "
=
"
max‑size
]
multicast-acq-ext
=
"
multicast‑acq
"
ecn-summary-par
=
"
ecn‑sum
"
xr-pdv-block
=
"
pkt‑dly‑var
" [ "
,
"
pdvtype
] [ "
,
"
nspec
"
,
"
pspec
]
pdvtype
=
"
pdv=
" ( "
0
" / "
1
" / 1*2
DIGIT
)
; 0: MAPDV2 ITU-T G.1020
; 1: 2-point PDV ITU-T Y.1540
nspec
=
( "
nthr=
"
fixpoint
) / ( "
npc=
"
fixpoint
)
; negative PDV threshold (ms) or percentile
pspec
=
( "
pthr
="
fixpoint
) / ( "
ppc=
"
fixpoint
)
; positive PDV threshold (ms) or percentile
fixpoint
=
1*
DIGIT
"
.
" 1*
DIGIT
; fixed point decimal
xr-delay-block
=
"
delay
"
xr-bgl-block
=
"
burst-gap-loss
"
xr-tpid-block
=
"
ts-psi-indep-decodability
"
xr-pdc-block
=
"
pkt-discard-count
"
xr-bgd-block
=
"
burst-gap-discard
"
xr-bglss-block
=
"
burst-gap-loss-stat
"
xr-bgdss-block
=
"
burst-gap-discard-stat
"
xr-fiss-block
=
"
frame-impairment-stat
"
xr-djb-block
=
"
de-jitter-buffer
"
xr-discard-rle
=
"
discard-rle
"
xr-discard-bytes
=
"
discard-bytes
"
xr-rfisd-block
=
"
rtp-flow-init-syn-delay
"
xr-rfso-block
=
"
rtp-flow-syn-offset
"
xr-mos-block
=
"
mos-metric
" [ "
=
"
calgextmap
*( "
,
"
calgextmap
) ]
calgextmap
=
mapentry
"
=
"
extensionname
[
SP
extensionattributes
]
mapentry
=
"
calg:
" 1*3
DIGIT
[ "
/
"
direction
]
; values in the range 1-255 are valid
; if needed, 0 can be used to indicate
; that an algorithm is rejected
direction
=
"
sendonly
" / "
recvonly
" / "
sendrecv
" / "
inactive
"
extensionname
=
"
P564
" /
; ITU-T P.564 Compliant Algorithm
"
G107
" /
; ITU-T G.107
"
G107_1
" /
; ITU-T G.107.1
"
TS101_329
" /
; ETSI TS 101 329-5 Annex E
"
JJ201_1
" /
; TTC JJ201.1
"
P1201_1
" /
; ITU-T P.1201.2
"
P1201_2
" /
; ITU-T P.1201.2
"
P1202_1
" /
; ITU-T P.1202.1
"
P1202_2
" /
; ITU-T P.1202.2
"
P.862.2
" /
; ITU-T P.862.2
"
P.863
" /
; ITU-T P.863
non-ws-string
extensionattributes
=
mosref
/
attributes-ext
mosref
=
"
mosref=
" ( "
l
" / "
m
" / "
h
" /
non-ws-string
)
; lower, middle, higher resolution
attributes-ext
=
non-ws-string
xr-conceal-block
=
"
loss-conceal
"
xr-conc-sec-block
=
"
conc-sec
" [ "
=
"
thresh
]
thresh
=
1*
DIGIT
xr-tpd-block
=
"
ts-psi-decodability
"
xr-prlr-block
=
"
post-repair-loss-count
"
xr-vlc-block
=
"
vlc
"
xr-ind-bgd-block
=
"
ind-burst-gap-discard
"
max-size
=
1*
DIGIT
format-ext
=
non-ws-string