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Revision as of 17:08, 31 March 2020 edit ChrstphrChvz (talk \| contribs) 242 edits →Audio and video payload types: RFC 3189 was obsoleted by RFC 6469 ← Previous edit		Latest revision as of 06:10, 3 June 2025 edit undo Asilvering (talk \| contribs) Autopatrolled, Administrators 53,628 edits Wikipedia:Articles for deletion/RTP payload formats closed as no consensus (XFDcloser) Tag: Manual revert
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Line 1: {{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. ==~~Audio~~Payload types and ~~video payload types~~formats== 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}} * {{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 ~~assigned~~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);. ~~previously~~Previously, DVI4 (payload type 5) was also recommended, but this was removed in 2013 by.{{Ref RFC \|7007.}} {\| class="wikitable sortable" Line 30 ⟶ 77: !No. of channels !Clock rate (Hz)<ref group=note>The "clock rate" is the rate at which the timestamp in the RTP header is incremented, which need not be the same as the codec's sampling rate. For instance, video codecs typically use a clock rate of 90000 so their frames can be more precisely aligned with the RTCP NTP timestamp, even though video sampling rates are typically in the range of 1–60 samples per second.</ref> !Frame size (msbyte) !Default packet ~~size~~interval (ms) !Description !References Line 44 ⟶ 91: \|20 \|ITU-T [[G.711]] PCM [[μ-Law]] audio 64 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 55 ⟶ 102: \| \|reserved, previously [[FS-1016]] [[CELP]] audio 4.8 kbit/s \|{{IETF RFC \|3551~~, previously RFC 1890~~\|link=no}} \|- Line 66 ⟶ 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 77 ⟶ 124: \|20 \|European [[GSM-FR\|GSM Full Rate]] audio 13 kbit/s (GSM 06.10) \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 88 ⟶ 135: \|30 \|ITU-T [[G.723.1]] audio \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 99 ⟶ 146: \|20 \|[[Interactive Multimedia Association\|IMA]] [[ADPCM]] audio 32 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 110 ⟶ 157: \|20 \|[[Interactive Multimedia Association\|IMA]] [[ADPCM]] audio 64 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 121 ⟶ 168: \|20 \|Experimental [[Linear predictive coding\|Linear Predictive Coding]] audio 5.6 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 132 ⟶ 179: \|20 \|ITU-T G.711 PCM [[A-Law]] audio 64 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 139 ⟶ 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 kbit/s \|{{IETF RFC\|3551\|link=no}} ~~\|[https://tools.ietf.org/html/rfc3551#page-14 RFC 3551 - Page 14]~~ \|- Line 153 ⟶ 200: \|any \|20 \|[[Linear PCM]] 16-bit Stereo audio 1411.2 kbit/s,{{Ref RFC\|2586}}{{Ref RFC\|3108\|rp=62}}{{Ref RFC\|4856\|rp=18}} uncompressed \|[[Linear PCM]] 16-bit Stereo audio 1411.2 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 165 ⟶ 212: \|20 \|[[Linear PCM]] 16-bit audio 705.6 kbit/s, uncompressed \|{{IETF RFC\|3551\|link=no}}{{Rp\|p=27}} ~~\|[https://tools.ietf.org/html/rfc3551#page-27 RFC 3551, Page 27]~~ \|- Line 176 ⟶ 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 186 ⟶ 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 198 ⟶ 245: \| \|[[MPEG-1]] or [[MPEG-2]] audio only \|{{IETF RFC\|2250\|link=no}}, {{IETF RFC\|3551\|link=no}} ~~\|RFC 3551, RFC 2250~~ \|- Line 209 ⟶ 256: \|20 \|ITU-T [[G.728]] audio 16 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 220 ⟶ 267: \|20 \|[[Interactive Multimedia Association\|IMA]] [[ADPCM]] audio 44.1 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 231 ⟶ 278: \|20 \|IMA ADPCM audio 88.2 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 242 ⟶ 289: \|20 \|ITU-T [[G.729]] and G.729a audio 8 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 253 ⟶ 300: \| \|reserved, previously [[comfort noise]] \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- \|25 \|CELLB ~~\|CELB~~ \|video \| Line 264 ⟶ 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 275 ⟶ 322: \| \|[[JPEG]] video \|~~RFC~~{{IETF RFC\|2435\|link=no}} \|- Line 285 ⟶ 332: \| \| \|[[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 297 ⟶ 344: \| \|ITU-T [[H.261]] video \|~~RFC~~{{IETF RFC\|4587\|link=no}} \|- Line 308 ⟶ 355: \| \|MPEG-1 and MPEG-2 video \|~~RFC~~{{IETF RFC\|2250\|link=no}} \|- Line 319 ⟶ 366: \| \|MPEG-2 [[MPEG transport stream\|transport stream]] \|~~RFC~~{{IETF RFC\|2250\|link=no}} \|- Line 330 ⟶ 377: \| \|[[H.263]] video, first version (1996) \|{{IETF RFC\|2190\|link=no}}, {{IETF RFC\|3551\|link=no}} ~~\|RFC 3551, RFC 2190~~ \|- Line 341 ⟶ 388: \| \|reserved because RTCP packet types 200–204 would otherwise be indistinguishable from RTP payload types 72–76 with the marker bit set \|~~RFC~~{{IETF RFC\|3550\|link=no}}, ~~RFC~~{{IETF RFC\|3551\|link=no}} \|- \|77–95 \|unassigned \| \| \| \| \| \|note that RTCP packet type 207 (XR, Extended Reports) would be indistinguishable from RTP payload types 79 with the marker bit set \|{{IETF RFC\|3551\|link=no}}, {{IETF RFC\|3611\|link=no}} \|- Line 352 ⟶ 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 363 ⟶ 421: \| \|[[H.263]] video, third version (2000) \|~~RFC~~{{IETF RFC\|4629\|link=no}} \|- Line 374 ⟶ 432: \| \|[[H.264]] video (MPEG-4 Part 10) \|{{IETF RFC \|6184~~, previously RFC 3984~~\|link=no}} \|- Line 385 ⟶ 443: \| \|[[H.264]] video \|~~RFC~~{{IETF RFC\|6190\|link=no}} \|- Line 396 ⟶ 454: \| \|[[H.265]] video (HEVC) \|~~RFC~~{{IETF RFC\|7798\|link=no}} \|- Line 418 ⟶ 476: \|20, 30 \|[[iLBC\|Internet low Bitrate Codec]] 13.33 or 15.2 kbit/s \|~~RFC~~{{IETF RFC\|3952\|link=no}} \|- Line 429 ⟶ 487: \| \|ITU-T [[G.711\|G.711.1]] A-law \|~~RFC~~{{IETF RFC\|5391\|link=no}} \|- Line 440 ⟶ 498: \| \|ITU-T [[G.711\|G.711.1]] μ-law \|~~RFC~~{{IETF RFC\|5391\|link=no}} \|- Line 462 ⟶ 520: \| \|ITU-T [[G.719]] \|~~RFC~~{{IETF RFC\|5404\|link=no}} \|- Line 473 ⟶ 531: \| \|ITU-T [[G.722.1]] and G.722.1 Annex C \|~~RFC~~{{IETF RFC\|5577\|link=no}} \|- Line 484 ⟶ 542: \|20 \|ITU-T [[G.726]] audio 16 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 495 ⟶ 553: \|20 \|ITU-T G.726 audio 24 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 506 ⟶ 564: \|20 \|ITU-T G.726 audio 32 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 517 ⟶ 575: \|20 \|ITU-T G.726 audio 40 kbit/s \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 528 ⟶ 586: \|20 \|ITU-T [[G.729]] Annex D \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 539 ⟶ 597: \|20 \|ITU-T [[G.729]] Annex E \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 550 ⟶ 608: \| \|ITU-T [[G.729.1]] \|~~RFC~~{{IETF RFC\|4749\|link=no}} \|- Line 561 ⟶ 619: \|20 \|ITU-T [[GSM-EFR]] (GSM 06.60) \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 572 ⟶ 630: \| \|ITU-T [[Half Rate\|GSM-HR]] (GSM 06.20) \|~~RFC~~{{IETF RFC\|5993\|link=no}} \|- Line 583 ⟶ 641: \| \|[[Adaptive Multi-Rate]] audio \|~~RFC~~{{IETF RFC\|4867\|link=no}} \|- Line 594 ⟶ 652: \| \|[[AMR-WB\|Adaptive Multi-Rate Wideband]] audio (ITU-T G.722.2) \|~~RFC~~{{IETF RFC\|4867\|link=no}} \|- Line 605 ⟶ 663: \| \|[[AMR-WB+\|Extended Adaptive Multi Rate – WideBand]] audio \|~~RFC~~{{IETF RFC\|4352\|link=no}} \|- Line 616 ⟶ 674: \| \|[[Vorbis]] audio \|~~RFC~~{{IETF RFC\|5215\|link=no}} \|- Line 627 ⟶ 685: \|20 \|[[Opus (audio format)\|Opus]] audio \|~~RFC~~{{IETF RFC\|7587\|link=no}} \|- Line 638 ⟶ 696: \| \|[[Speex]] audio \|~~RFC~~{{IETF RFC\|5574\|link=no}} \|- Line 649 ⟶ 707: \| \|Loss-Tolerant [[MP3]] audio \|{{IETF RFC \|5219 ~~(previously RFC 3119)~~\|link=no}} \|- Line 659 ⟶ 717: \| \| \|[[MPEG-4 Audio]] (includes [[Advanced_Audio_Coding\|AAC]]) \|{{IETF RFC \|6416 ~~(previously RFC 3016)~~\|link=no}} \|- Line 671 ⟶ 729: \| \|[[MPEG-4 Visual]] \|{{IETF RFC \|6416 ~~(previously RFC 3016)~~\|link=no}} \|- Line 682 ⟶ 740: \| \|[[MPEG-4]] Elementary Streams \|~~RFC~~{{IETF RFC\|3640\|link=no}} \|- Line 693 ⟶ 751: \| \|[[VP8]] video \|~~RFC~~{{IETF RFC\|7741\|link=no}} \|- Line 704 ⟶ 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 715 ⟶ 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 726 ⟶ 795: \|20 (by analogy with L16) \|IEC 61119 12-bit nonlinear audio \|{{IETF RFC \|3190 ~~Section~~ \|link=no}}{{Rp\|§3}} \|- Line 737 ⟶ 806: \|20 \|[[Linear PCM]] 16-bit audio \|{{IETF RFC \|3551 ~~Section~~\|link=no}},{{Rp\|§ 4.5.11,}} {{IETF RFC \|2586\|link=no}} \|- Line 748 ⟶ 817: \|20 (by analogy with L16) \|[[Linear PCM]] 20-bit audio \|{{IETF RFC \|3190 ~~Section~~\|link=no}}{{Rp\|§ 4}} \|- Line 759 ⟶ 828: \|20 (by analogy with L16) \|[[Linear PCM]] 24-bit audio \|{{IETF RFC \|3190 ~~Section~~\|link=no}}{{Rp\|§ 4}} \|- Line 770 ⟶ 839: \| \|Uncompressed Video \|~~RFC~~{{IETF RFC\|4175\|link=no}} \|- Line 781 ⟶ 850: \| \|[[Dolby AC-3]] audio \|~~RFC~~{{IETF RFC\|4184\|link=no}} \|- Line 792 ⟶ 861: \| \|[[Dolby Digital Plus\|Enhanced AC-3]] audio \|~~RFC~~{{IETF RFC\|4598\|link=no}} \|- Line 803 ⟶ 872: \| \|[[Text over IP]] \|~~RFC~~{{IETF RFC\|4103\|link=no}} \|- \|dynamic \|EVRC<br>EVRC0<br>EVRC1 \|audio Line 813 ⟶ 883: \| \|[[Enhanced Variable Rate Codec\|EVRC]] audio \|~~RFC~~{{IETF RFC\|4788\|link=no}} \|- \|dynamic Line 823 ⟶ 893: \| \|[[Enhanced Variable Rate Codec B\|EVRC-B]] audio \|~~RFC~~{{IETF RFC\|4788\|link=no}} \|- Line 834 ⟶ 904: \| \|[[Enhanced Variable Rate Codec B\|EVRC-WB]] audio \|~~RFC~~{{IETF RFC\|5188\|link=no}} \|- Line 845 ⟶ 915: \| \|[[JPEG 2000]] video \|~~RFC~~{{IETF RFC\|5371\|link=no}} \|- Line 856 ⟶ 926: \| \|[[UEMCLIP]] audio \|~~RFC~~{{IETF RFC\|5686\|link=no}} \|- Line 867 ⟶ 937: \| \|[[Adaptive Transform Acoustic Coding\|ATRAC]]3 audio \|~~RFC~~{{IETF RFC\|5584\|link=no}} \|- Line 878 ⟶ 948: \| \|[[Adaptive Transform Acoustic Coding\|ATRAC]]3+ audio \|~~RFC~~{{IETF RFC\|5584\|link=no}} \|- Line 889 ⟶ 959: \| \|[[Adaptive Transform Acoustic Coding\|ATRAC]] Advanced Lossless audio \|~~RFC~~{{IETF RFC\|5584\|link=no}} \|- Line 899 ⟶ 969: \| \| \|[[DV (video format)\|DV]] video \|{{IETF RFC \|6469 ~~(previously RFC 3189)~~\|link=no}} \|- Line 911 ⟶ 981: \| \|[[ITU-R BT.656]] video \|~~RFC~~{{IETF RFC\|3555\|link=no}} \|- Line 922 ⟶ 992: \| \|Bundled MPEG-2 video \|~~RFC~~{{IETF RFC\|2343\|link=no}} \|- Line 933 ⟶ 1,003: \| \|[[SMPTE 292M]] video \|~~RFC~~{{IETF RFC\|3497\|link=no}} \|- Line 944 ⟶ 1,014: \| \|Redundant Audio Data \|~~RFC~~{{IETF RFC\|2198\|link=no}} \|- Line 955 ⟶ 1,025: \| \|Variable-rate DVI4 audio \|~~RFC~~{{IETF RFC\|3551\|link=no}} \|- Line 966 ⟶ 1,036: \| \|MPEG-1 Systems Streams video \|~~RFC~~{{IETF RFC\|2250\|link=no}} \|- Line 977 ⟶ 1,047: \| \|MPEG-2 Program Streams video \|~~RFC~~{{IETF RFC\|2250\|link=no}} \|- Line 988 ⟶ 1,058: \| \|tone \|~~RFC~~{{IETF RFC\|4733\|link=no}} \|- Line 999 ⟶ 1,069: \| \|[[Dual-tone multi-frequency signaling\|DTMF]] tone \|~~RFC~~{{IETF RFC\|4733\|link=no}} \|- Line 1,010 ⟶ 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}} \|}- \|dynamic ~~{{reflist\|group=note}}~~ \|jxsv \|video \| \|90000 \| \| \|[[JPEG XS]] video \|{{IETF RFC\|9134\|link=no}} \|- \|dynamic ~~==Text messaging payload ==~~ \|scip * {{IETF RFC\|4103}}, ''RTP Payload Format for Text Conversation'' \|audio/video \| \|8000 or 90000 \| \| \|[[Secure Communications Interoperability Protocol\|SCIP]] \|{{IETF RFC\|9607\|link=no}} \|} {{reflist\|group=note}} ~~==MIDI payload ==~~ * {{IETF RFC\|6295}}, ''[[RTP-MIDI\|RTP Payload Format for MIDI]]'' * {{IETF RFC\|4696}}, ''An Implementation Guide for RTP MIDI'' ==See also== * [[Session Initiation Protocol]] * [[~~H323~~H.323]] * [[Comparison of audio coding formats]]