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ABNF for SDP
RFC 4566and many other RFCs

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SDP attributes defined in

3GPP TS 26.234 – PSS

3GPP TS 26.234Clause 5.3.3

 


;  a=X-predecbufsize:<size of the hypothetical pre‑decoder buffer>
;  see  Clause 5.3.3.2 of TS 26.234
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;  a=X-initpredecbufperiod:<initial pre‑decoder buffering period>
;  see  Clause 5.3.3.2 of TS 26.234
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;  a=X-initpostdecbufperiod:<initial post‑decoder buffering period>
;  see  Clause 5.3.3.2 of TS 26.234
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;  a=X-decbyterate:<peak decoding byte rate>
;  see  Clause 5.3.3.2 of TS 26.234
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;  a=3gpp-videopostdecbufsize:<size of the video post‑decoder buffer>
;  see  Clause 5.3.3.2 of TS 26.234
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;  a=framesize:<payload type number> <width>‑<heigth>
;  see  Clause 5.3.3.2 of TS 26.234
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attribute-fields  =/
sdp-3GPP-frame-packing-type-line =
"a"  "="  "3GPP‑framepackingtype"  ":"  frame‑packing‑type  ":"  payload‑type‑numberCRLF
;  see  Clause 5.3.3.2 of TS 26.234
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frame-packing-type =
1*DIGIT
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payload-type-number =
1*DIGIT
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alt =
"a"  "="  "alt"  ":"  alt‑id  ":"  SDP‑lineCRLF
;  see  Clause 5.3.3.3 of TS 26.234
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alt-default-id =
"a"  "="  "alt‑default‑id"  ":"  alt‑idCRLF
;  see  Clause 5.3.3.3 of TS 26.234
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alt-group =
"a"  "="  "alt‑group"  ":"  alt‑group‑type  ":"  alt‑group‑subtype  ":"
alt‑grouping  *( ";"  alt‑grouping )  CRLF
;  see  Clause 5.3.3.4 of TS 26.234
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alt-group-type =
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alt-group-subtype =
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alt-grouping =
grouping‑value  "="  alt‑id  *( ","  alt‑id )
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grouping-value =
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alt-id =
1*DIGIT
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sdp-Adaptation-line =
"a"  "="  "3GPP‑Adaptation‑Support"  ":"  report‑frequencyCRLF
;  see  Clause 5.3.3.5 of TS 26.234
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report-frequency =
NonZeroDIGIT  [ DIGIT ]
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NonZeroDIGIT =
%x31-39
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3GPP-Assets-Info =
"a"  "="  "3GPP‑Asset‑Information:"  Asset  0*( ","  Asset )  CRLF
;  see  Clause 5.3.3.7 of TS 26.234
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Asset =
( "{"  "url"  "="  """  URL  """  "}" ) /  ( "{"  AssetName  "="  AssetBox  "}" )
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URL =
URI
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AssetName =
"Title" /  "Description" /  "Copyright" /  "Performer" /  "Author" /  "Genre" /  "Rating" /  "Classification" /  "Keywords" /  "Location" /  "Album" /  "RecordingYear" /  "Collection" /  "UserRating" /  "Thumbnail" /  asset-extension
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asset-extension =
1*( (0x01..0x09) /  0x0b /  0x0c /  (0x0e..0x1f) /  (0x21..0x2b) /  (0x2d..0x3c) /  (0x3e..0x7a) /  0x7c /  (0x7d..0xff) )
;  any byte except SP,  NUL,  CR,  LF,  "=",  ",",  "{",  "}"
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AssetBox =
;  Base64 encoded version [RFC 4648] of any asset box as defined in Clause 8 of TS 26.244
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