RTP payload formats: Difference between revisions

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{{Short description|Multimedia information signaling}}
The [[Real-time Transport Protocol]] (RTP) specifies a general-purpose data format and [[network protocol]] for transmitting digital media streams on [[Internet Protocol]] (IP) networks. The details of media encoding, such as signal sampling rate, frame size and timing, are specified in an '''RTP payload format'''. The format parameters of the RTP payload are typically communicated between transmission endpoints with the [[Session Description Protocol]] (SDP), but other protocols, such as the [[Extensible Messaging and Presence Protocol]] (XMPP) may be used.
The [[Real-time Transport Protocol]] (RTP) specifies a general-purpose data format and [[network protocol]] for transmitting digital media streams on [[Internet Protocol]] (IP) networks. The details of media encoding, such as signal sampling rate, frame size and timing, are specified in an '''RTP payload format'''. The format parameters of the RTP payload are typically communicated between transmission endpoints with the [[Session Description Protocol]] (SDP), but other protocols, such as the [[XMPP|Extensible Messaging and Presence Protocol]] (XMPP) may be used.
 
==AudioPayload types and video payload typesformats==
The technical parameters of payload formats for audio and video streams are standardised.
The standard also describes the process of registering new payload types with IANA.
* {{Sum RFC|3550|ref=yes}}
* {{Sum RFC|3551|ref=yes}}
* {{Sum RFC|3611|ref=yes}}
* {{Sum RFC|4856|ref=yes}}
 
==Text messaging payload types==
RFC 3551, entitled '''RTP Profile for Audio and Video''' ('''RTP/AVP'''), specifies the technical parameters of payload formats for audio and video streams.
Payload formats and types for text messaging are defined in the following specifications:
* {{Sum RFC|4103|ref=yes|notes=yes}}
* {{Sum RFC|9071|ref=yes}}
 
==MIDI payload types==
The standard also describes the process of registering new payload types with IANA; additional payload formats and payload types are defined in the following specifications:
Payload formats and types for [[MIDI]] are defined in the following specifications:
* {{IETF RFC|3551}}, Standard 65, ''RTP Profile for Audio and Video Conferences with Minimal Control''
*{{Sum RFC|6295|ref=yes}}
* {{IETF RFC|4856}}, ''Media Type Registration of Payload Formats in the RTP Profile for Audio and Video Conferences''
*{{Sum RFC|4696|ref=yes}}
* {{IETF RFC|3190}}, ''RTP Payload Format for 12-bit [[Digital Audio Tape|DAT Audio]] and 20- and 24-bit Linear Sampled Audio''
 
* {{IETF RFC|6184}}, ''RTP Payload Format for [[H.264]] Video''
==Audio and video payload types==
* {{IETF RFC|3640}}, ''RTP Payload Format for Transport of MPEG-4 Elementary Streams''
Payload formats and types for audio and video are defined in the following specifications:
* {{IETF RFC|6416}}, ''RTP Payload Format for [[MPEG-4]] Audio/Visual Streams''
* {{Sum RFC|2029|ref=yes}}
* {{IETF RFC|2250}}, ''RTP Payload Format for [[MPEG1]]/[[MPEG-2 Video|MPEG2 Video]]''
* {{Sum RFC|2190|ref=yes}}
* {{IETF RFC|7798}}, ''RTP Payload Format for [[High Efficiency Video Coding]] (HEVC)''
* {{Sum RFC|2198|ref=yes}}
* {{IETF RFC|2435}}, ''RTP Payload Format for JPEG-compressed Video''
* {{Sum RFC|2250|ref=yes}}
* {{IETF RFC|4587}}, ''RTP Payload Format for [[H.261]] Video Streams''
* {{Sum RFC|2343|ref=yes}}
* {{IETF RFC|2658}}, ''RTP Payload Format for [[PureVoice]] Audio Video''
* {{Sum RFC|2435|ref=yes}}
* {{IETF RFC|4175}}, ''RTP Payload Format for Uncompressed Video''
* {{Sum RFC|2586|ref=yes}}
* {{IETF RFC|7587}}, ''RTP Payload Format for the [[Opus (audio format)|Opus]] Speech and Audio Codec''
* {{Sum RFC|2658|ref=yes}}
* {{IETF RFC|9134}}, ''RTP Payload Format for [[JPEG XS]]''
* {{Sum RFC|3190|ref=yes}}
* {{Sum RFC|3389|ref=yes}}
* {{Sum RFC|3497|ref=yes}}
* {{Sum RFC|3640|ref=yes}}
* {{Sum RFC|3952|ref=yes}}
* {{Sum RFC|4175|ref=yes}}
* {{Sum RFC|4184|ref=yes}}
* {{Sum RFC|4352|ref=yes}}
* {{Sum RFC|4587|ref=yes}}
* {{Sum RFC|4598|ref=yes}}
* {{Sum RFC|4629|ref=yes}}
* {{Sum RFC|4733|ref=yes}}
* {{Sum RFC|4749|ref=yes}}
* {{Sum RFC|4788|ref=yes}}
* {{Sum RFC|4867|ref=yes}}
* {{Sum RFC|5188|ref=yes}}
* {{Sum RFC|5215|ref=yes}}
* {{Sum RFC|5371|ref=yes}}
* {{Sum RFC|5391|ref=yes}}
* {{Sum RFC|5404|ref=yes}}
* {{Sum RFC|5574|ref=yes}}
* {{Sum RFC|5577|ref=yes}}
* {{Sum RFC|5584|ref=yes}}
* {{Sum RFC|5686|ref=yes}}
* {{Sum RFC|5993|ref=yes}}
* {{Sum RFC|6184|ref=yes}}
* {{Sum RFC|6190|ref=yes}}
* {{Sum RFC|6416|ref=yes}}
* {{Sum RFC|6469|ref=yes}}
* {{Sum RFC|7310|ref=yes}}
* {{Sum RFC|7587|ref=yes}}
* {{Sum RFC|7741|ref=yes}}
* {{Sum RFC|7798|ref=yes}}
* {{Sum RFC|9134|ref=yes}}
* {{Sum RFC|9607|ref=yes}}
* {{Sum RFC|9628|ref=yes}}
 
Payload identifiers 96–127 are used for payloads defined dynamically during a session. It is recommended to dynamically assign port numbers, although port numbers 5004 and 5005 have been registered for use of the profile when a dynamically assigned port is not required.
 
Applications should always support PCMU (payload type 0);. previouslyPreviously, DVI4 (payload type 5) was also recommended, but this was removed in 2013 by.{{Ref RFC |7007.}}
 
{| class="wikitable sortable"
Line 45 ⟶ 91:
|20
|ITU-T [[G.711]] PCM [[μ-Law]] audio 64 kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 56 ⟶ 102:
|
|reserved, previously [[FS-1016]] [[CELP]] audio 4.8 kbit/s
|{{IETF RFC |3551, previously RFC 1890|link=no}}
|-
 
Line 67 ⟶ 113:
|
|reserved, previously ITU-T [[G.721]] [[ADPCM]] audio 32 kbit/s or ITU-T [[G.726]] audio 32 kbit/s
|{{IETF RFC |3551, previously RFC 1890|link=no}}
|-
 
Line 78 ⟶ 124:
|20
|European [[GSM-FR|GSM Full Rate]] audio 13 kbit/s (GSM 06.10)
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 89 ⟶ 135:
|30
|ITU-T [[G.723.1]] audio
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 100 ⟶ 146:
|20
|[[Interactive Multimedia Association|IMA]] [[ADPCM]] audio 32 kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 111 ⟶ 157:
|20
|[[Interactive Multimedia Association|IMA]] [[ADPCM]] audio 64 kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 122 ⟶ 168:
|20
|Experimental [[Linear predictive coding|Linear Predictive Coding]] audio 5.6 kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 133 ⟶ 179:
|20
|ITU-T G.711 PCM [[A-Law]] audio 64 kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 140 ⟶ 186:
|audio
|1
|8000{{refn|group=note|Although the sampling rate for G.722 is 16000, its clock rate is 8000 to remain backwards compatible with RFC 1890, which incorrectly used this value.<ref{{Ref name="rfc3551">RFC |3551, ''RTP Profile for Audio and Video Conferences with Minimal Control'', H. Schulzrinne, S. Casner, The Internet Society (July 2003).</ref>|rp=14}}}}
|any
|20
|ITU-T [[G.722]] audio 64&nbsp;kbit/s
|{{IETF RFC|3551|link=no}}
|[https://tools.ietf.org/html/rfc3551#page-14 RFC 3551 - Page 14]
|-
 
Line 154 ⟶ 200:
|any
|20
|[[Linear PCM]] 16-bit Stereo audio 1411.2&nbsp;kbit/s,{{Ref RFC|2586}}{{Ref RFC|3108|rp=62}}{{Ref RFC|4856|rp=18}} uncompressed
|[[Linear PCM]] 16-bit Stereo audio 1411.2&nbsp;kbit/s,<ref>{{cite web |url=https://tools.ietf.org/html/rfc2586 |title=RFC 2586 - The Audio/L16 MIME content type |date=May 1999 |accessdate=2010-03-16}}</ref><ref>{{cite web |url=https://tools.ietf.org/html/rfc3108#page-62 |title=RFC 3108 - Conventions for the use of the Session Description Protocol (SDP) for ATM Bearer Connections |date=May 2001 |accessdate=2010-03-16}}</ref><ref>{{cite web |url=https://tools.ietf.org/html/rfc4856#page-18 |title=RFC 4856 - Media Type Registration of Payload Formats in the RTP Profile for Audio and Video Conferences - Registration of Media Type audio/L16 |date=March 2007 |accessdate=2010-03-16}}</ref> uncompressed
|{{IETF RFC|3551|link=no}}{{Rp|p=27}}
|[https://tools.ietf.org/html/rfc3551#page-27 RFC 3551, Page 27]
|-
 
Line 166 ⟶ 212:
|20
|[[Linear PCM]] 16-bit audio 705.6&nbsp;kbit/s, uncompressed
|{{IETF RFC|3551|link=no}}{{Rp|p=27}}
|[https://tools.ietf.org/html/rfc3551#page-27 RFC 3551, Page 27]
|-
 
Line 177 ⟶ 223:
|20
|[[QCELP|Qualcomm Code Excited Linear Prediction]]
|{{IETF RFC|2658|link=no}}, {{IETF RFC|3551|link=no}}{{Rp|p=28}}
|RFC 2658, [https://tools.ietf.org/html/rfc3551#page-28 RFC 3551]
|-
 
Line 187 ⟶ 233:
|
|
|[[Comfort noise]]. Payload type used with audio codecs that do not support comfort noise as part of the codec itself such as [[G.711]], [[G.722.1]], [[G.722]], [[G.726]], [[G.727]], [[G.728]], [[GSM 06.10]], [[Siren (codec)|Siren]], and [[RTAudio]].
|RFC{{IETF RFC|3389|link=no}}
|-
 
Line 199 ⟶ 245:
|
|[[MPEG-1]] or [[MPEG-2]] audio only
|{{IETF RFC|2250|link=no}}, {{IETF RFC|3551|link=no}}
|RFC 3551, RFC 2250
|-
 
Line 210 ⟶ 256:
|20
|ITU-T [[G.728]] audio 16&nbsp;kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 221 ⟶ 267:
|20
|[[Interactive Multimedia Association|IMA]] [[ADPCM]] audio 44.1&nbsp;kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 232 ⟶ 278:
|20
|IMA ADPCM audio 88.2&nbsp;kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 243 ⟶ 289:
|20
|ITU-T [[G.729]] and G.729a audio 8&nbsp;kbit/s; Annex B is implied unless the <code>annexb=no</code> parameter is used
|{{IETF RFC|3551|link=no}},{{Rp|p=20}} {{IETF RFC|4856|link=no}}{{Rp|p=12}}
|[https://tools.ietf.org/html/rfc3551#page-20 RFC 3551, Page 20], [https://tools.ietf.org/html/rfc3555#page-15 RFC 3555, Page 15]
|-
 
Line 254 ⟶ 300:
|
|reserved, previously [[comfort noise]]
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 265 ⟶ 311:
|
|[[Sun Microsystems|Sun]] CellB video<ref>[https://docs.oracle.com/cd/E19504-01/802-5863/802-5863.pdf XIL Programmer's Guide], Chapter 22 "CellB Codec". August 1997. Retrieved on 2014-07-19.</ref>
|RFC{{IETF RFC|2029|link=no}}
|-
 
Line 276 ⟶ 322:
|
|[[JPEG]] video
|RFC{{IETF RFC|2435|link=no}}
|-
 
Line 287 ⟶ 333:
|
|[[Xerox PARC]]'s Network Video (nv)<ref>[https://www.cs.columbia.edu/~hgs/rtp/nv.html nv - network video on Henning Schulzrinne's website], [https://www.dgp.toronto.edu/tp/techdocs/NetVid.html Network Video on The University of Toronto's website], Retrieved on 2009-07-09.</ref><ref>[https://github.com/ronf/nv Ron Frederick Github with source code]</ref>
|{{IETF RFC|3551|link=no}}{{Rp|p=32}}
 
|[https://tools.ietf.org/html/rfc3551#page-32 RFC 3551, Page 32]
|-
 
Line 299 ⟶ 344:
|
|ITU-T [[H.261]] video
|RFC{{IETF RFC|4587|link=no}}
|-
 
Line 310 ⟶ 355:
|
|MPEG-1 and MPEG-2 video
|RFC{{IETF RFC|2250|link=no}}
|-
 
Line 321 ⟶ 366:
|
|MPEG-2 [[MPEG transport stream|transport stream]]
|RFC{{IETF RFC|2250|link=no}}
|-
 
Line 332 ⟶ 377:
|
|[[H.263]] video, first version (1996)
|{{IETF RFC|2190|link=no}}, {{IETF RFC|3551|link=no}}
|RFC 3551, RFC 2190
|-
 
Line 343 ⟶ 388:
|
|reserved because RTCP packet types 200&ndash;204 would otherwise be indistinguishable from RTP payload types 72&ndash;76 with the marker bit set
|RFC{{IETF RFC|3550|link=no}}, RFC{{IETF RFC|3551|link=no}}
|-
 
Line 354 ⟶ 399:
|
|note that RTCP packet type 207 (XR, Extended Reports) would be indistinguishable from RTP payload types 79 with the marker bit set
|RFC{{IETF RFC|3551|link=no}}, RFC{{IETF RFC|3611|link=no}}
|-
 
Line 365 ⟶ 410:
|
|[[H.263]] video, second version (1998)
|{{IETF RFC|2190|link=no}}, {{IETF RFC|3551|link=no}}, {{IETF RFC|4629|link=no}}
|RFC 3551, RFC 4629, RFC 2190
|-
 
Line 376 ⟶ 421:
|
|[[H.263]] video, third version (2000)
|RFC{{IETF RFC|4629|link=no}}
|-
 
Line 387 ⟶ 432:
|
|[[H.264]] video (MPEG-4 Part 10)
|{{IETF RFC |6184, previously RFC 3984|link=no}}
|-
 
Line 398 ⟶ 443:
|
|[[H.264]] video
|RFC{{IETF RFC|6190|link=no}}
|-
 
Line 409 ⟶ 454:
|
|[[H.265]] video (HEVC)
|RFC{{IETF RFC|7798|link=no}}
|-
 
Line 431 ⟶ 476:
|20, 30
|[[iLBC|Internet low Bitrate Codec]] 13.33 or 15.2&nbsp;kbit/s
|RFC{{IETF RFC|3952|link=no}}
|-
 
Line 442 ⟶ 487:
|
|ITU-T [[G.711|G.711.1]] A-law
|RFC{{IETF RFC|5391|link=no}}
|-
 
Line 453 ⟶ 498:
|
|ITU-T [[G.711|G.711.1]] μ-law
|RFC{{IETF RFC|5391|link=no}}
|-
 
Line 475 ⟶ 520:
|
|ITU-T [[G.719]]
|RFC{{IETF RFC|5404|link=no}}
|-
 
Line 486 ⟶ 531:
|
|ITU-T [[G.722.1]] and G.722.1 Annex C
|RFC{{IETF RFC|5577|link=no}}
|-
 
Line 497 ⟶ 542:
|20
|ITU-T [[G.726]] audio 16&nbsp;kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 508 ⟶ 553:
|20
|ITU-T G.726 audio 24&nbsp;kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 519 ⟶ 564:
|20
|ITU-T G.726 audio 32&nbsp;kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 530 ⟶ 575:
|20
|ITU-T G.726 audio 40&nbsp;kbit/s
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 541 ⟶ 586:
|20
|ITU-T [[G.729]] Annex D
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 552 ⟶ 597:
|20
|ITU-T [[G.729]] Annex E
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 563 ⟶ 608:
|
|ITU-T [[G.729.1]]
|RFC{{IETF RFC|4749|link=no}}
|-
 
Line 574 ⟶ 619:
|20
|ITU-T [[GSM-EFR]] (GSM 06.60)
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 585 ⟶ 630:
|
|ITU-T [[Half Rate|GSM-HR]] (GSM 06.20)
|RFC{{IETF RFC|5993|link=no}}
|-
 
Line 596 ⟶ 641:
|
|[[Adaptive Multi-Rate]] audio
|RFC{{IETF RFC|4867|link=no}}
|-
 
Line 607 ⟶ 652:
|
|[[AMR-WB|Adaptive Multi-Rate Wideband]] audio (ITU-T G.722.2)
|RFC{{IETF RFC|4867|link=no}}
|-
 
Line 618 ⟶ 663:
|
|[[AMR-WB+|Extended Adaptive Multi Rate – WideBand]] audio
|RFC{{IETF RFC|4352|link=no}}
|-
 
Line 629 ⟶ 674:
|
|[[Vorbis]] audio
|RFC{{IETF RFC|5215|link=no}}
|-
 
Line 640 ⟶ 685:
|20
|[[Opus (audio format)|Opus]] audio
|RFC{{IETF RFC|7587|link=no}}
|-
 
Line 651 ⟶ 696:
|
|[[Speex]] audio
|RFC{{IETF RFC|5574|link=no}}
|-
 
Line 662 ⟶ 707:
|
|Loss-Tolerant [[MP3]] audio
|{{IETF RFC |5219 (previously RFC 3119)|link=no}}
|-
 
Line 673 ⟶ 718:
|
|[[MPEG-4 Audio]] (includes [[Advanced_Audio_Coding|AAC]])
|{{IETF RFC |6416 (previously RFC 3016)|link=no}}
|-
 
Line 684 ⟶ 729:
|
|[[MPEG-4 Visual]]
|{{IETF RFC |6416 (previously RFC 3016)|link=no}}
|-
 
Line 695 ⟶ 740:
|
|[[MPEG-4]] Elementary Streams
|RFC{{IETF RFC|3640|link=no}}
|-
 
Line 706 ⟶ 751:
|
|[[VP8]] video
|RFC{{IETF RFC|7741|link=no}}
|-
 
Line 717 ⟶ 762:
|
|[[VP9]] video
|{{IETF RFC|9628|link=no}}
|[https://tools.ietf.org/html/draft-ietf-payload-vp9 draft-ietf-payload-vp9]
|-
 
|dynamic
|AV1
|video
|
|90000
|
|
|[[AV1]] video
|[https://aomediacodec.github.io/av1-rtp-spec/ av1-rtp-spec]
|-
 
Line 728 ⟶ 784:
|20
|[[Linear PCM]] 8-bit audio with 128 offset
|{{IETF RFC |3551 Section|link=no}}{{Rp|§ 4.5.10 and }}{{Rp|Table 5}}
|-
 
Line 739 ⟶ 795:
|20 (by analogy with L16)
|IEC 61119 12-bit nonlinear audio
|{{IETF RFC |3190 Section |link=no}}{{Rp|§3}}
|-
 
Line 750 ⟶ 806:
|20
|[[Linear PCM]] 16-bit audio
|{{IETF RFC |3551 Section|link=no}},{{Rp|§ 4.5.11,}} {{IETF RFC |2586|link=no}}
|-
 
Line 761 ⟶ 817:
|20 (by analogy with L16)
|[[Linear PCM]] 20-bit audio
|{{IETF RFC |3190 Section|link=no}}{{Rp|§ 4}}
|-
 
Line 772 ⟶ 828:
|20 (by analogy with L16)
|[[Linear PCM]] 24-bit audio
|{{IETF RFC |3190 Section|link=no}}{{Rp|§ 4}}
|-
 
Line 783 ⟶ 839:
|
|Uncompressed Video
|RFC{{IETF RFC|4175|link=no}}
|-
 
Line 794 ⟶ 850:
|
|[[Dolby AC-3]] audio
|RFC{{IETF RFC|4184|link=no}}
|-
 
Line 805 ⟶ 861:
|
|[[Dolby Digital Plus|Enhanced AC-3]] audio
|RFC{{IETF RFC|4598|link=no}}
|-
 
Line 816 ⟶ 872:
|
|[[Text over IP]]
|RFC{{IETF RFC|4103|link=no}}
|-
|dynamic
 
|EVRC<br>EVRC0<br>EVRC1
|audio
Line 826 ⟶ 883:
|
|[[Enhanced Variable Rate Codec|EVRC]] audio
|RFC{{IETF RFC|4788|link=no}}
|-
|dynamic
Line 836 ⟶ 893:
|
|[[Enhanced Variable Rate Codec B|EVRC-B]] audio
|RFC{{IETF RFC|4788|link=no}}
|-
 
Line 847 ⟶ 904:
|
|[[Enhanced Variable Rate Codec B|EVRC-WB]] audio
|RFC{{IETF RFC|5188|link=no}}
|-
 
Line 858 ⟶ 915:
|
|[[JPEG 2000]] video
|RFC{{IETF RFC|5371|link=no}}
|-
 
Line 869 ⟶ 926:
|
|[[UEMCLIP]] audio
|RFC{{IETF RFC|5686|link=no}}
|-
 
Line 880 ⟶ 937:
|
|[[Adaptive Transform Acoustic Coding|ATRAC]]3 audio
|RFC{{IETF RFC|5584|link=no}}
|-
 
Line 891 ⟶ 948:
|
|[[Adaptive Transform Acoustic Coding|ATRAC]]3+ audio
|RFC{{IETF RFC|5584|link=no}}
|-
 
Line 902 ⟶ 959:
|
|[[Adaptive Transform Acoustic Coding|ATRAC]] Advanced Lossless audio
|RFC{{IETF RFC|5584|link=no}}
|-
 
Line 912 ⟶ 969:
|
|
|[[DV (video format)|DV]] video
|{{IETF RFC |6469 (previously RFC 3189)|link=no}}
|-
 
Line 924 ⟶ 981:
|
|[[ITU-R BT.656]] video
|RFC{{IETF RFC|3555|link=no}}
|-
 
Line 935 ⟶ 992:
|
|Bundled MPEG-2 video
|RFC{{IETF RFC|2343|link=no}}
|-
 
Line 946 ⟶ 1,003:
|
|[[SMPTE 292M]] video
|RFC{{IETF RFC|3497|link=no}}
|-
 
Line 957 ⟶ 1,014:
|
|Redundant Audio Data
|RFC{{IETF RFC|2198|link=no}}
|-
 
Line 968 ⟶ 1,025:
|
|Variable-rate DVI4 audio
|RFC{{IETF RFC|3551|link=no}}
|-
 
Line 979 ⟶ 1,036:
|
|MPEG-1 Systems Streams video
|RFC{{IETF RFC|2250|link=no}}
|-
 
Line 990 ⟶ 1,047:
|
|MPEG-2 Program Streams video
|RFC{{IETF RFC|2250|link=no}}
|-
 
Line 1,001 ⟶ 1,058:
|
|tone
|RFC{{IETF RFC|4733|link=no}}
|-
 
Line 1,012 ⟶ 1,069:
|
|[[Dual-tone multi-frequency signaling|DTMF]] tone
|RFC{{IETF RFC|4733|link=no}}
|-
 
Line 1,023 ⟶ 1,080:
|4<ref group=note>For aptX, the packetization interval must be rounded down to the nearest packet interval that can contain an integer number of samples. So at sampling rates of 11025, 22050, or 44100, a packetization rate of "4" is rounded down to 3.99.</ref>
|[[aptX]] audio
|RFC{{IETF RFC|7310|link=no}}
|-
 
Line 1,034 ⟶ 1,091:
|
|[[JPEG XS]] video
|RFC{{IETF RFC|9134|link=no}}
|-
 
|dynamic
|scip
|audio/video
|
|8000 or 90000
|
|
|[[Secure Communications Interoperability Protocol|SCIP]]
|{{IETF RFC|9607|link=no}}
|}
 
{{reflist|group=note}}
 
==Text messaging payload ==
* {{IETF RFC|4103}}, ''RTP Payload Format for Text Conversation''
 
==MIDI payload ==
* {{IETF RFC|6295}}, ''[[RTP-MIDI|RTP Payload Format for MIDI]]''
* {{IETF RFC|4696}}, ''An Implementation Guide for RTP MIDI''
 
==See also==