RFC 5372
Payload Format for JPEG 2000 Video: Extensions for Scalability and Main Header Recovery
RFC 5372: Payload Format for JPEG 2000 Video: Extensions for Scalability and Main Header Recovery ✨🎀
okay bestie, let's get into it 💅 this one is the Standards Track extension doc for the JPEG 2000 video RTP payload 🦋
- Who wrote it: A. Leung, S. Futemma, and E. Itakura, all from Sony 🌸
- Network Working Group 💜
- Category: Standards Track 🔥
- Date: October 2008 🌈
- Obsoletes / Updates: nothing is listed in this document's header, so no obsoletes or updates line appears here 🙈
Status of This Memo 📜
this is an Internet standards track protocol for the Internet community, and it's open for discussion and suggestions for improvements 💖 for the current standardization state, check the "Internet Official Protocol Standards" (STD 1) doc. distribution of this memo is unlimited 🫶
Abstract ✨
so this memo describes extra ways to use the payload header from "RTP Payload Format for JPEG 2000 Video Streams" (RFC 5371) 🦋 the goal is better support for JPEG 2000 stuff like scalability and main header recovery 👑
this memo must be accompanied with a complete implementation of "RTP Payload Format for JPEG 2000 Video Streams" 💅 that other doc is the full description of the payload header and signaling, and this one only adds extra processing for the payload header 🧚 there's also an extra media type and an SDP marker signaling for implementations of this doc 🎀
Table of Contents 🌸
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Description of the Mechanisms . . . . . . . . . . . . . . 3
1.1.1. Main Header Compensation . . . . . . . . . . . . . . . 3
1.1.2. Priority Table . . . . . . . . . . . . . . . . . . . . 3
1.2. Motivations for Priority Field Coding . . . . . . . . . . 4
1.2.1. Scenario: Just Enough Resolution . . . . . . . . . . . 4
1.2.2. Scenario: Multiple Clients, Single Source . . . . . . 4
1.3. Conventions Used in This Document . . . . . . . . . . . . 4
2. Payload Format Enhanced Processing . . . . . . . . . . . . . . 5
2.1. Enhanced Processing Markers . . . . . . . . . . . . . . . 5
3. Priority Mapping Table . . . . . . . . . . . . . . . . . . . . 6
3.1. Packet-Number-Based Ordering . . . . . . . . . . . . . . . 7
3.2. Progression-Based Ordering . . . . . . . . . . . . . . . . 7
3.3. Layer-Based Ordering . . . . . . . . . . . . . . . . . . . 9
3.4. Resolution-Based Ordering . . . . . . . . . . . . . . . . 9
3.5. Component-Based Ordering . . . . . . . . . . . . . . . . . 10
4. JPEG 2000 Main Header Compensation Scheme . . . . . . . . . . 10
4.1. Sender Processing . . . . . . . . . . . . . . . . . . . . 11
4.2. Receiver Processing . . . . . . . . . . . . . . . . . . . 11
5. Media Type Registration . . . . . . . . . . . . . . . . . . . 11
6. SDP Parameters . . . . . . . . . . . . . . . . . . . . . . . . 12
6.1. Mapping of the Optional Parameters to SDP . . . . . . . . 12
6.2. Usage with the SDP Offer/Answer Model . . . . . . . . . . 13
6.2.1. Examples . . . . . . . . . . . . . . . . . . . . . . . 13
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 16
8. Security Considerations . . . . . . . . . . . . . . . . . . . 16
9. Congestion Control . . . . . . . . . . . . . . . . . . . . . . 16
10. Normative References . . . . . . . . . . . . . . . . . . . . . 16
Appendix A. Sample Headers in Detail . . . . . . . . . . . . . . 17
A.1. Sample 1: Progressive Image with Single Tile, 3500
Bytes (i.e., thumbnail) . . . . . . . . . . . . . . . . . 17
A.2. Sample 2: Image with 4 Tiles . . . . . . . . . . . . . . . 19
A.3. Sample 3: Packing Multiple Tiles in Single Payload,
Fragmented Header. No Header Compensation,
Progressive Image . . . . . . . . . . . . . . . . . . . . 20
A.4. Sample 4: Interlace Image, Single Tile . . . . . . . . . . 221. Introduction 🌸
okay so this doc extends "RTP Payload Format for JPEG 2000 Video Streams" [RFC5371] 🧚 these are extra mechanisms you can use with certain parts of the header in [RFC5371] to support JPEG 2000 features like scalability and a main header compensation method 💖 all of it gets explained properly in this doc
these are optional extensions to RFC 5371 [RFC5371], so you can use them to make better use of JPEG 2000 features 🫶 they are not required for any implementation of RFC 5371 [RFC5371] 🦋
1.1. Description of the Mechanisms 🎀
1.1.1. Main Header Compensation 👑
the JPEG 2000 image header holds the essential decoding info for the decoder 💅 if a JPEG 2000 decoder gets JPEG 2000 image data without that header, it couldn't decode the image data properly 😭 but here's the tea: JPEG 2000 video encoders very rarely change encoding parameters between successive frames 🌈 so the decoder decoding new image data with a prior JPEG 2000 image header is very likely in this situation 🔥
the main header compensation scheme in this doc uses that exact fact that successive JPEG 2000 video images rarely change their encoding parameters ✨ receivers need to save past JPEG 2000 image headers so they can use them if a JPEG 2000 image header goes missing later 💜 changes to the JPEG 2000 image header get signaled through the payload header 🧚 when the mh_id value of the payload header changes, receivers should save the new JPEG 2000 header to use for main header recovery 🌸
1.1.2. Priority Table 🦋
the JPEG 2000 codestream has so much functionality built in that decoders can easily handle scalable delivery or progressive transmission 🤩 progressive transmission lets images get reconstructed with increasing pixel accuracy or spatial resolution 💅 this means you can reconstruct images with different resolutions and pixel accuracy for different target devices 🎀 one image source can give you a codestream that's easy to process for smaller image display devices 🍓
JPEG 2000 packets contain all the compressed image data from a specific layer, component, resolution level, and/or precinct 💖 the order those packets show up in the codestream is called the progression order 🌈 the packet ordering can progress along four axes: layer, component, resolution, and precinct (or position) 👑
a priority field that shows how important the data in a given RTP packet is can really help with JPEG 2000's progressive and scalable functions ✨
1.2. Motivations for Priority Field Coding 💜
the JPEG 2000 coding scheme lets you reorder the codestream in lots of ways 🔥 even when the encoder sets up and arranges the coding scheme, a decoder can still rearrange the codestream on the fly to fit its decode parameters, like switching from resolution progressive to quality progressive 🫶
with priority field coding, the decoder gets insight into the codestream without needing the full codestream, and JPEG 2000 features get exposed to a higher level 🦋
the authors found the scenarios below useful for this field 🌸 the priority field lets more info about the image get sent without extra signaling between senders and receivers to make use of JPEG 2000 capabilities 💅
1.2.1. Scenario: Just Enough Resolution 🧚
this one's for when fast scene access matters more than higher image quality 😭 with the priority field, the receiver can decode for its own quality level 🎀 if the sender can't figure out the receiver's resolution, the receiver can pick which parts of the codestream to decode or load using the priority field 💖
1.2.2. Scenario: Multiple Clients, Single Source 🌈
in a multicast environment, some clients have better visual capability than others (think a TV conference versus a mobile phone) 🙈 each client can use the priority field to figure out which packets are vital for its own visual presentation 👑 the sender only has to do work on the priority field to serve all the clients optimally while managing just one visual stream ✨
1.3. Conventions Used in This Document 🫶
the key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119. [RFC2119]. 💅
2. Payload Format Enhanced Processing 🔥
2.1. Enhanced Processing Markers 🦋
this section describes additional usage of the mh_id and priority field values, plus interpretations that differ from RFC 5371 [RFC5371] 🌸 implementations of this doc should follow RFC 5371 [RFC5371] first, then add the extra header processing this doc describes 💜 implementations following this doc are expected to interoperate with implementations of [RFC5371] and this doc as well 🧚
here's the RTP payload header format for a JPEG 2000 video stream 🎀
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|tp |MHF|mh_id|T| priority | tile number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|reserved | fragment offset |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Figure 1: RTP Payload Header Format for JPEG 2000mh_id (Main Header Identification): 3 bits 💖
this is the main header identification value 🌈 it's used for JPEG 2000 main header recovery 👑
the initial value of mh_id MUST be 1 at the beginning of the session 🔥
the same mh_id value stays in use as long as the coding parameters described in the main header stay unchanged between frames 🫶
the mh_id value MUST be incremented by 1 every time a new main header is transmitted 🦋 once the mh_id value becomes greater than 7, it SHOULD roll over to 1 🌸
when mh_id is 0, it has a special usage for the receiver 🧚 that special usage is described in Section 4.2 of this document 💅
senders should follow Section 4.1 of this document for proper mh_id assignment and usage 💜
priority: 8 bits 🎀
the priority field shows how important the JPEG 2000 packet in the payload is 🍓 typically, a higher priority value is set on packets containing the JPEG 2000 packets with the lower sub-bands 🙈
special values of priority 🌈:
0: reserved for payloads that contain a header (main or tile part header). this is considered the most important 👑1to255: these values decrease in importance as the values increase (so 1 is more important than 2, and so on). applying priority values should correlate directly to the JPEG 2000 codestream in importance ✨
the lower the priority value, the higher the importance 💅 a priority value of 0 is the highest importance, and 255 is the lowest 🔥 we define priority value 0 as a special priority value for the headers (the main header or tile-part header) 🦋 if any headers (the main header or tile-part header) are packed into the RTP payload, the sender MUST set the priority value to 0 😭
assignment of the values is described in Section 3. 🌸
✨ that's part 1 of 5 ✨ more coming next bestie 💖
3. Priority Mapping Table ✨
okay so the priority mapping table is what decides the priority value for each JPEG 2000 packet when we're going in progression order 💅🎀
This doc lays out a few commonly used priority mapping tables, which are pre-defined: packet-number-based (the default), progression-based, layer-based, resolution-based, and component-based 🦋
Packet number priority mapping is REQUIRED to be supported by clients implementing this specification 🫶 The other mapping tables (progression, layer, resolution, and component-based) are OPTIONAL for implementations of this specification 🌸
Rules that every implementation of this specification MUST follow in all priority modes (no exceptions, bestie 💀):
- When there is a header in the packet with a JPEG 2000 packet, the sender MUST set the payload packet priority value to 0.
- When there are multiple JPEG 2000 packets in the same RTP payload packet, the sender MUST set the payload packet priority value to the lowest JPEG 2000 packet (i.e., if JPEG 2000 packets with priority: 5,6,7 are packed into a single payload, the priority value will be 5). 🍓
3.1. Packet-Number-Based Ordering
ok this one is the default and it's giving classic 👑 Packet-number-based ordering assigns the payload packet priority value from the "JPEG 2000 packet value" (fun fact: JPEG 2000 codestreams are stored in units of packets and each packet has a value 🧚). This method is the default method for assigning priority value. All implementations of this specification MUST support this method.
If the JPEG 2000 codestream packet value is greater than 255, the sender MUST set the payload priority value to 255 💜
3.2. Progression-Based Ordering
the sender will assign the payload packet priority value only based on layer, resolution, and component ordering of the codestream ✨
Progression-based ordering can assign different priority values in the same layer or the resolution level, which it cannot do in the layer-based ordering or resolution-based ordering 🔥
Unlike the packet-number-based ordering, progression-based ordering does not assign a value in the position level, which saves the priority values. The priority value in the position level is not so important because a receiver could recognize the position by checking the tile number field. Therefore, progression-based ordering would be useful 🦋
the general algorithm is that the ordering is based on the triple <layer, resolution, component> and the minimum priority is 1. So, if the codestream is constructed of L layers (layer value ranges from 0 to L-1), R resolutions (resolution value ranges from 0 to R-1), and C components (component value ranges from 0 to C-1), then for a triple <lval, rval, cval>:
the priority value of the codestream in LRCP order is calculated as:
priority = 1 + cval + (C * rval) + (C * R * lval)the priority value of the codestream in RLCP order is calculated as:
priority = 1 + cval + (C * lval) + (C * L * rval)the priority value of the codestream in RPCL order is calculated as:
priority = 1 + lval + (L * cval) + (L * C * rval)the priority value of which codestream in PCRL order is calculated as:
priority = 1 + lval + (L * rval) + (L * R * cval)the priority value of which codestream in CPRL order is calculated as:
priority = 1 + lval + (L * rval) + (L * R * cval)For example, here's the vibe 🌈
If the codestream is ordered in LRCP (Layer, Resolution, Component, Position) with 1 layer (L=1), 2 resolutions (R=2), 3 components (C=3), and 2 positions, the priority value should be (1 + cval + 3*rval + 6*lval). Then an example would have packet numbering as so:
All the packets in:
layer.........0
resolution....0
component.....0
position......0 or 1
then the packet priority value : 1
All the packets in:
layer.........0
resolution....0
component.....1
position......0 or 1
then the packet priority value : 2
All the packets in:
layer.........0
resolution....0
component.....2
position......0 or 1
then the packet priority value : 3
All the packets in:
layer.........0
resolution....1
component.....0
position......0 or 1
then the packet priority value : 4
All the packets in:
layer.........0
resolution....1
component.....1
position......0 or 1
then the packet priority value : 53.3. Layer-Based Ordering
the layer-based priority mapping table simplifies the default mapping to just matching JPEG 2000 packets together from the same layer 🎀
For example:
All the packets in layer 0 : packet priority value : 1
All the packets in layer 1 : packet priority value : 2
All the packets in layer 2 : packet priority value : 3
...
All the packets in layer n : packet priority value : n+1
All the packets in layer 255 : packet priority value : 2553.4. Resolution-Based Ordering
resolution-based priority mapping table is giving layer-based vibes, but for JPEG 2000 packets of the same resolution 🌸
For example:
All the packets in resolution 0 : packet priority value : 1
All the packets in resolution 1 : packet priority value : 2
All the packets in resolution 2 : packet priority value : 3
...
All the packets in resolution n : packet priority value : n+1
All the packets in resolution 255 : packet priority value : 2553.5. Component-Based Ordering
component-based priority mapping table is mapping together JPEG 2000 components of the same component 🧚
For example:
All the packets in component 0 : packet priority value : 1
All the packets in component 1 : packet priority value : 2
All the packets in component 2 : packet priority value : 3
...
All the packets in component n : packet priority value : n+1
All the packets in component 255 : packet priority value : 2554. JPEG 2000 Main Header Compensation Scheme 🔥
the mh_id field of the payload header is used to indicate whether the encoding parameters of the main header are the same as the encoding parameters of the previous frame. The same value is set in mh_id of the RTP packet in the same frame. The mh_id and encode parameters are not associated with each other as 1:1, but they are used to indicate whether or not the encode parameters of the previous frame are the same in the event of a lost header 🫶
The mh_id field value SHOULD be saved from previous frames to be used to recover the current frame's main header. If the mh_id of the current frame has the same value as the mh_id value of the previous frame, the previous frame's main header MAY be used to decode the current frame, in case of a lost header in the current frame 💖
The sender MUST increment mh_id when parameters in the header change and send a new main header accordingly.
The receiver MAY use the mh_id and MAY retain the header for such compensation.
4.1. Sender Processing
The sender MUST transmit RTP packets with the same mh_id value if the encoder parameters of the current frame are the same as the previous frame. The encoding parameters are the fixed information marker segment (SIZ marker) and functional marker segments (COD, COC, RGN, QCD, QCC, and POC) specified in JPEG 2000 Part 1, Annex A [JPEG2000Pt_1] 📚
If the encode parameters change, the sender transmitting RTP packets MUST increment the mh_id value by one, but when the mh_id value becomes greater than 7, a sender MUST set the mh_id value back to 1. 🔄
4.2. Receiver Processing
When the receiver receives the main header completely, the RTP sequence number, the mh_id, and the main header should be saved. Only the last main header that was received completely SHOULD be saved. When the mh_id value is 0, the receiver SHOULD NOT save the header 🙈
When the main header is not received, the receiver may compare the current payload header's mh_id value with the previous saved mh_id value. If the values match, decoding may be performed by using the previously saved main header ✨
If the mh_id field is set to 0, the receiver MUST NOT save the main header and MUST NOT compensate for lost headers. 🚫
If the mh_id value changes, receivers SHOULD save the current header and save the new mh_id value. The old saved header should be deleted from storage 🗑️
Also, if the decoder detects an inconsistency between the header and payload, it is recommended to clear the saved mh_id and the saved main header. Please see Section 8 for more explanation 👀
5. Media Type Registration 🎀
this document extends the associated media type "video/jpeg2000" from RFC 5371 [RFC5371]. Here are additional optional parameters 💅
Additional optional parameters:
- mhc: Main Header Compensation. This option is used when a sender and/or receiver is utilizing the Main Header Compensation technique as specified in this document. Acceptable values when using the Main Header Compensation technique is "1"; otherwise, it should be "0".
This is a list of options to be included when the sender or receiver is utilizing the priority table option as specified in this document.
- pt: Priority Table. This option is followed by a comma-separated list of pre-defined priority table definitions to be used by sender or receiver.
The option appearing front most in the option line is the most important and the next are of decreasing importance.
Acceptable values:
- progression: this table follows the progression ordering of the codestream.
- layer: this table follows the layer ordering of the codestream.
- resolution: this table follows the resolution ordering of the codestream.
- component: this table follows the component ordering of the codestream.
- default: this table follows the packet ordering of the codestream.
6. SDP Parameters 🧚
6.1. Mapping of the Optional Parameters to SDP
the new optional parameters mhc and pt, if presented, MUST be included in the "a=fmtp" line of SDP. These parameters are expressed as a media type string, in the form of a semicolon-separated list of parameter=value pairs. 💜
6.2. Usage with the SDP Offer/Answer Model 🎀
Okay so, this section is about how the SDP Offer/Answer thing works. It builds on the SDP section in [RFC5371] too, so you're getting the old rules plus these new ones. 💅
When you offer JPEG 2000 over RTP with SDP in an Offer/Answer model [RFC3264], here are the rules, bestie:
- All parameters MUST have an acceptable value for that parameter. ✨
- All parameters MUST correspond to the parameters of the payload. 🫶
- If the optional parameter "mhc" is used, it MUST appear in the offer with value "1", and if accepted, it SHOULD appear in the answer. 🔥
- If the optional parameter "pt" is used, it MUST appear in the offer containing a complete comma-separated list indicating which priority table definitions the sender supports. If accepted, it SHOULD appear in the answer containing a single priority table definition selected from the offer. 💖
- If the optional parameter "mhc" is used, it MUST appear in the offer with value "1", and if accepted, it MUST appear in the answer. If the optional parameter "pt" is used, it MUST appear in the offer containing a complete comma-separated list indicating which priority table definitions the sender supports. If accepted, it MUST appear in the answer containing a single priority table definition selected from the offer. 👑
- In a multicast environment:
- Senders should send out one option for a priority table definition for everyone in the group. 🌸
- Even if a single client in the group does not support the extensions outlined in this document, senders MAY use these mechanisms. A receiver that doesn't support the mechanisms would safely ignore the values in mh_id and priority field. 🦋
6.2.1. Examples 🧚
Okay, the examples! Offer/Answer example exchanges are provided, and honestly they're the best way to see how it all clicks. 😭
6.2.1.1. Example 1 🌈
Alice offers Main Header Compensation functionality, YCbCr 422 color space, interlace image with 720-pixel width and 480-pixel height, and several priority table options (default, progression, layer, resolution, component) as below:
v=0
o=alice 2890844526 2890844526 IN IP4 host.example
s=
c=IN IP4 host.example
t=0 0
m=video 49170 RTP/AVP 98
a=rtpmap:98 jpeg2000/90000
a=fmtp:98 mhc=1; sampling=YCbCr-4:2:2; interlace=1;
pt=default,progression,layer,resolution, component;
width=720;height=480Bob accepts Main Header Compensation functionality, YCbCr-4:2:2 color space, interlace image, default mapping table and replies:
v=0
o=bob 2890844730 2890844731 IN IP4 host.example
s=
c=IN IP4 host.example
t=0 0
m=video 49920 RTP/AVP 98
a=rtpmap:98 jpeg2000/90000
a=fmtp:98 mhc=1; sampling=YCbCr-4:2:2;interlace=1;
pt=default;width=720;height=4806.2.1.2. Example 2 🍓
Alice offers Main Header Compensation, YCbCr 420 color space, progressive image with 320-pixel width and 240-pixel height, and layer priority table options as below:
v=0
o=alice 2890844526 2890844526 IN IP4 host.example
s=
c=IN IP4 host.example
t=0 0
m=video 49170 RTP/AVP 98
a=rtpmap:98 jpeg2000/90000
a=fmtp:98 mhc=1; sampling=YCbCr-4:2:0;
pt=layer;width=320;height=240Bob does not accept Main Header Compensation functionality but accepts YCbCr-4:2:0 color space, layer-based priority mapping and replies:
v=0
o=bob 2890844730 2890844731 IN IP4 host.example
s=
c=IN IP4 host.example
t=0 0
m=video 49920 RTP/AVP 98
a=rtpmap:98 jpeg2000/90000
a=fmtp:98 mhc=0; sampling=YCbCr-4:2:0;
pt=layer;width=320;height=2406.2.1.3. Example 3 💜
Alice offers 27 MHz timestamp, Main Header Compensation, YCbCr 420 color space, progressive image with 320-pixel width and 240-pixel height, and layer priority table options as below:
v=0
o=alice 2890844526 2890844526 IN IP4 host.example
s=
c=IN IP4 host.example
t=0 0
m=video 49170 RTP/AVP 98 99
a=rtpmap:98 jpeg2000/27000000
a=rtpmap:99 jpeg2000/90000
a=fmtp:98 mhc=1; sampling=YCbCr-4:2:0;
pt=layer;width=320;height=240
a=fmtp:99 mhc=1; sampling=YCbCr-4:2:0;
pt=layer;width=320;height=240Bob can accept payload type with 27 MHz timestamp, and does not accept Main Header Compensation functionality but accepts YCbCr-4:2:0 color space, layer-based priority mapping and replies:
v=0
o=bob 2890844730 2890844731 IN IP4 host.example
s=
c=IN IP4 host.example
t=0 0
m=video 49920 RTP/AVP 98
a=rtpmap:98 jpeg2000/27000000
a=fmtp:98 mhc=0; sampling=YCbCr-4:2:0;
pt=layer;width=320;height=2407. IANA Considerations 🏷️
This document extends the associated media type "video/jpeg2000" from [RFC5371]. Additional parameters are specified in Section 5 of this document. ✨
8. Security Considerations 🔐
Please refer to Section 6 of [RFC5371] for Security Considerations regarding this RTP format. The security issues regarding enhanced mechanisms presented in this document are discussed in that section. 🛡️
⚠️ Okay, this part is serious. The mh_id field can identify a maximum of 7 different main headers. If severe packet loss (either random or intentionally introduced by an attacker) causes 6 successive updates to the main header to be lost, the decoder will attempt decompression using an incorrect main header.
Even if the incorrect main header is passed, the standard JPEG 2000 decoder could detect inconsistency of the codestream and process it properly. It is recommended to clear the saved mh_id and the saved main header if the decoder detects such an inconsistency. 😱
9. Congestion Control 🚦
Please refer to Section 7 of [RFC5371] for Congestion Control regarding this RTP format. 🌊
10. Normative References 📚
- [RFC5371] Futemma, S., Leung, A., and E. Itakura, "RTP Payload Format for JPEG 2000 Video Streams", RFC 5371, October 2008.
- [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997.
- [JPEG2000Pt_1] ISO/IEC JTC1/SC29, ISO/IEC 15444-1 | ITU-T Rec. T.800, "Information Technology - JPEG 2000 Image Coding System - Part 1: Core Coding System", December 2000.
- [RFC3264] Rosenberg, J. and H. Schulzrinne, "An Offer/Answer Model with Session Description Protocol (SDP)", RFC 3264, June 2002.
Appendix A. Sample Headers in Detail 🎁
The following figures are sample RTP headers demonstrating values that should appear in the RTP header. The packet priority is Packet-Number-Based Priority. ✨
For reference, the payload header is as follows:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|tp |MHF|mh_id|T| priority | tile number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|reserved | fragment offset |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 2: JPEG 2000 Payload Header
A.1. Sample 1: Progressive Image with Single Tile, 3500 Bytes (i.e., thumbnail) 🖼️
First Packet: This packet will have the whole main header 210 bytes
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 3 | 1 |1| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF4F FF51 002F 0000 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 3: Header Sample 1-1 (First Packet)
Second Packet: This packet will have a tile header and the first tile part LLband 1500 bytes
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 | 1 |0| 1 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 210 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF90 000A 0000 0000 2DB3 0001 FF93 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 4: Header Sample 1-2 (Second Packet)
Third Packet: This packet will have the next part in the tile, no tile header 1500 bytes
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 | 1 |0| 2 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 1710 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|E841 4526 4556 9850 C2EA .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 5: Header Sample 1-3 (Third Packet)
Fourth Packet: Last packet for the image 290 bytes
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 | 1 |0| 3 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 3210 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|A55D 8B73 3B25 25C7 B9EB .... 2FBE B153|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 6: Header Sample 1-4 (Fourth Packet)
A.2. Sample 2: Image with 4 Tiles ✨
First Packet: okay so this packet is bringing the WHOLE main header, and it's 210 bytes 🎀
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 3 | 1 |1| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF4F FF51 002F 0000 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 7: Header Sample 2-1 (First Packet)
Second Packet: this one is giving tile 0, the first tile part, and it's 1400 bytes 🌸
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 | 1 |0| 1 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 210 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF90 000A 0000 0000 0578 0001 FF93 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 8: Header Sample 2-2 (Second Packet)
Third Packet: this packet has tile 1, the second tile part, and it's 1423 bytes 🦋
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 | 1 |0| 1 | 1 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 1610 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF90 000A 0001 0000 058F 0001 FF93 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 9: Header Sample 2-3 (Third Packet)
Fourth Packet: this one carries tile 2, the third tile part, and it's 1355 bytes 💜
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 | 1 |0| 1 | 2 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 3033 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF90 000A 0002 0000 054B 0001 FF93 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 10: Header Sample 2-4 (4th Packet)
Fifth Packet: last one! this packet has tile 3, the fourth tile part, and it's 1290 bytes 🌈
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 | 1 |0| 1 | 3 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 4388 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF90 000A 0003 0000 050A 0001 FF93 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 11: Header Sample 2-5 (5th Packet)
A.3. Sample 3: Packing Multiple Tiles in Single Payload, Fragmented Header. No Header Compensation, Progressive Image ✨
First Packet: this packet has the first part of the main header, and it's 110 bytes 🎀
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 1 | 0 |1| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF4F FF51 002F 0000 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 12: Header Sample 3-1 (First Packet)
Second Packet: this one has the second part of the main header, and it's 1400 bytes 🌸
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 2 | 0 |1| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 110 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF64 00FF .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 13: Header Sample 3-2 (Second Packet)
Third Packet: this packet has two tiles, tile 0 and tile 1, and it's 1400 bytes 🦋
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 | 0 |1| 1 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 1510 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF90 000A 0000 0000 02BC 0001 FF93 ... |
// . //
|FF90 000A 0001 0000 02BC 0001 FF93 ... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 14: Header Sample 3-3 (Third Packet)
Fourth Packet: this one has tile 2, and it's 1395 bytes 💅
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 | 0 |0| 1 | 2 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 2910 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF90 000A 0002 0000 0573 0001 FF93 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 15: Header Sample 3-4 (4th Packet)
🎀 A.4. Sample 4: Interlace Image, Single Tile ✨
okay bestie, this one is giving interlacing 😭🫶 the codestream of each image is ordered in LRCP (Layer, Resolution, Component, Position), with 1 layer, 3 resolutions, 3 components and 1 position. literally the cleanest little setup 💅
First packet: this packet carries the whole main header for the odd field, 210 bytes 🌸
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 1 | 3 | 1 |1| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF4F FF51 002F 0000 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 16: Header Sample 4-1 (First Packet) 🦋
Second packet: this one has the first part of the odd field's tile, where three jp2-packets are included, 1400 bytes 💖
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 1 | 0 | 1 |1| 1 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 210 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF90 000A 0000 0000 0578 0001 FF93 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 17: Header Sample 4-2 (Second Packet) 🌈
Third packet: this one has the second part of the odd field's tile, 1400 bytes ✨
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 1 | 0 | 1 |1| 4 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 1610 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|7F04 E708 27D9 D11D 22CB ... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 18: Header Sample 4-3 (Third Packet) 🧚
Fourth packet: this one has the third part of the odd field's tile, 1300 bytes 🍓
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 1 | 0 | 1 |1| 7 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 3010 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|98BD EC9B 2826 DC62 D4AB ... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 19: Header Sample 4-4 (4th Packet) 🔥
Fifth packet: this one carries the whole main header for the even field, 210 bytes 👑
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 2 | 3 | 1 |1| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF4F FF51 002F 0000 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 20: Header Sample 4-5 (5th Packet) 💜
Sixth packet: this one has the first part of the even field's tile, 1400 bytes 🫶
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 2 | 0 | 1 |1| 1 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 1610 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|FF90 000A 0000 0000 0578 0001 FF93 .... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 21: Header Sample 4-6 (6th Packet) 🦋
Seventh packet: this one has the second part of the even field's tile, 1400 bytes 💅
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 2 | 0 | 1 |1| 4 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 3010 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|626C 42F0 166B 6BD0 F8E1 ... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 22: Header Sample 4-7 (7th Packet) 🌸
Eighth packet: this one has the third part of the even field's tile, 1300 bytes 🌟
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 2 | 0 | 1 |1| 7 | 0 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 0 | 4410 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|8114 41D5 18AB 4A1B ... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+Figure 23: Header Sample 4-8 (8th Packet) 🌈✨
Authors' Addresses 💌
Andrew Leung Sony Corporation
EMail: andrew@ualberta.net
Satoshi Futemma Sony Corporation 1-7-1 Konan Minato-ku Tokyo 108-0075 Japan
Phone: +81 3 6748-2111 EMail: satosi-f@sm.sony.co.jp URI: http://www.sony.net/
Eisaburo Itakura Sony Corporation 1-7-1 Konan Minato-ku Tokyo 108-0075 Japan
Phone: +81 3 6748-2111 EMail: itakura@sm.sony.co.jp URI: http://www.sony.net/
Full Copyright Statement 📜
Copyright (C) The IETF Trust (2008).
This document is subject to the rights, licenses and restrictions contained in BCP 78, and except as set forth therein, the authors retain all their rights.
This document and the information contained herein are provided on an "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Intellectual Property 🔐
The IETF takes no position regarding the validity or scope of any Intellectual Property Rights or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; nor does it represent that it has made any independent effort to identify any such rights. Information on the procedures with respect to rights in RFC documents can be found in BCP 78 and BCP 79.
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The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights that may cover technology that may be required to implement this standard. Please address the information to the IETF at ietf-ipr@ietf.org.
📦 where this page comes from
- ietf: rfc5372 2008-10
- 💖 girlified by claude-haiku-5-5 on : a language model's rewrite of the original, under its terms