Satoshi INTERNET-DRAFT Satoshi Futemma draft-ietf-avt-rtp-jpeg2000-07.txt Andrew Leung Eisaburo Itakura Sony Corporation December 30, 2004 Expires: June 30, 2005 RTP Payload Format for JPEG 2000 Video Streams Status of this Memo By submitting this Internet-Draft, we certify that any applicable patent or other IPR claims of which I am aware have been disclosed, and any of which we become aware will be disclosed, in accordance with RFC 3668. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference materials or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt The list of Internet-Drafts Shadow Directories can be accessed at http://www.ietf.org/shadow.html. Abstract This memo describes an RTP payload format for the ISO/IEC International Standard 15444-1 | ITU-T Rec. T.800, otherwise better known as: JPEG 2000. JPEG 2000 features are considered and there are provisions in the design of this payload format for scalability. JPEG 2000 is a truly scalable compression technology allowing applications to encode one way and decode many different ways. Extending from a single image to a series of JPEG 2000 images, one has a JPEG 2000 video stream. Futemma, et al. [Page 1]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 Table of Contents 1. Introduction .............................................. 3 1.1 Conventions Used in this Document ..................... 5 2. JPEG 2000 Video Features .................................. 6 3. Payload Design ............................................ 6 4. Payload Format ............................................ 6 4.1 RTP fixed header usage ................................ 6 4.2 RTP Payload Header Format ............................. 7 5. RTP Packetization ......................................... 9 6. Security Consideration .................................... 10 7. IANA Consideration ........................................ 11 7.1 MIME Registration ..................................... 11 7.2 SDP Parameters ........................................ 13 8. Usage with the SDP Offer/Answer Model ..................... 13 8.1 Examples ............................................. 13 9. Intellectual Property Right Statement ..................... 14 10. Informative Appendix .................................... 14 10.1 Recommended Practices ................................ 14 10.2 Sample Headers in Detail ............................. 15 11. References .............................................. 21 12. Authors' Addresses ....................................... 22 13. Full Copyright Statement ................................. 22 Futemma, et al. [Page 2]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 1. Introduction This document specifies a payload formats for JPEG 2000 video streams over the Real-time Transport Protocol (RTP). JPEG 2000 is an ISO/IEC International Standard and ITU-T Recommendation (ISO/IEC International Standard 15444-1 | ITU-T Rec. T.800) developed for next generation still image compression. JPEG is and stands for the: Joint Photograhers Experts Group developing the standard. Its basic compression technology is described in detail in [1] & [7]. Part 3 of the JPEG 2000 standard defines Motion JPEG 2000 [7]. However, Motion JPEG 2000 focuses on the file format and it does not specify the transmission format for the network. JPEG 2000 supports many powerful features that are not supported in the current JPEG standard [1] & [7]: o Higher compression efficiency than JPEG with less visual loss or distortion especially at extreme compression ratios. o A single codestream that offers both lossy and superior lossless compression. o Better error resiliency than JPEG. o Progressive transmission by pixel accuracy (SNR scalability) and resolution (resolution scalability.) o Random codestream access and processing. The JPEG 2000 algorithm is briefly explained. Figure 1 shows a block diagram of the JPEG 2000 encoding method. +-----+ | ROI | +-----+ | V +----------+ +----------+ +------------+ |DC, comp. | | Wavelet | | | raw image ==> |transform-|==>|transform-|==>|Quantization|==+ | ation | | ation | | | | +----------+ +----------+ +------------+ | | +-----------+ +----------+ +------------+ | | | | | | | | JPEG 2000 <==| Data |<==| Rate |<==| EBCOT |<=+ codestream | Ordering | | Control | | | +-----------+ +----------+ +------------+ Figure 1: Block diagram of the JPEG 2000 encoder The image is transformed into wavelet coefficients. The image is sampled into various levels usually vertically and horizontally Futemma, et al. [Page 3]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 from high frequencies (which contains all the sharp details) to the low frequencies (which contains all the flat areas.) Quantization is performed on the coefficients within each sub-band. After quantization, code blocks are formed from within the precincts within the tiles. Precincts are a finer separation than tiles and code blocks are the smallest separation of the image data. EBCOT coding (Embedded Block Coding Optimized for Truncation) is performed within each code block and arithmetically encoded by bit plane. Rate control is performed to achieve the highest quality image for the specified rate. As a result, for a given tile, data units called JPEG 2000 packets are generated, which contain data from a specific layer, a specific component, a specific resolution, and a specific precinct. Finally, the JPEG 2000 packets are interleaved according to the progression along four axes: layer, resolution, component and precinct, and add a JPEG 2000 header to become a fully compliant JPEG 2000 codestream. To decompress a JPEG 2000 codestream, one would follow the reverse order of the encoding order, minus the quantization, rate control, and data ordering step. It is outside the scope of this document to describe in detail this procedure. Please refer to various JPEG 2000 texts for further details [1]. Figure 2 shows a JPEG 2000 codestream in detail. A JPEG 2000 codestream is structured from the main header beginning with the SOC (Start Of Codestream) marker, one or more tiles, and the EOC (End Of Codestream) marker to indicate the end of the codestream. Each tile consists of a tile-part header that starts with the SOT (Start of Tile) marker and ends with a SOD (Start of Data) marker, and bitstream (a series of JPEG 2000 packet.) +-- +------------+ Main | | SOC | Required as the first marker. header| +------------+ | | main | Main header marker segments +-- +------------+ | | SOT | Required at the beginning of each Tile- | +------------+ tile-part header. part | | T0,TP0 | Tile 0, tile-part 0 header marker header| +------------+ segments | | SOD | Required at the end of each tile-part +-- +------------+ header | bitstream | Tile-part bitstream +-- +------------+ | | SOT | Tile- | +------------+ part | | T1,TP0 | header| +------------+ Futemma, et al. [Page 4]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 | | SOD | +-- +------------+ | bit stream | +------------+ . . . +------------+ | EOC | Required as the last marker in the code +------------+ stream Figure 2: Basic construction of the JPEG 2000 codestream 1.1 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 RFC2119 [2]. 2. JPEG 2000 Video Features JPEG 2000 video streams are formed as a continuous series of JPEG 2000 still images. Previously described features of JPEG 2000 may be used effectively in streaming applications. A JPEG 2000 video stream has the following qualities: o At low bit rates, the SNR is improved dramatically over JPEG and Motion JPEG. o This is a full intra frame format - each frame is independently compressed - and therefore has a low encoding and decoding delay. o JPEG 2000 has flexible and accurate rate control. This is suitable for traffic control and congestion control during network transmission. o JPEG 2000 can provide its own codestream error resilience markers to aid in codestream recovery outside of this specification. 3. Payload Design To provide a payload format that maximizes JPEG 2000 features, the following are taken into consideration: o Provisions for packet loss On the Internet, 5% packet loss is common and this percentage may vary, upto 20% or more. To split JPEG 2000 video streams into RTP packets, efficient packetization of the code stream is required to minimize problems in decoding due to missing packets. If the main header is lost in transmission, the image cannot be decoded. Futemma, et al. [Page 5]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 4. Payload Format 4.1 RTP fixed header usage For each RTP packet, the RTP fixed header is followed by the JPEG 2000 RTP payload header (this specification), which is followed by the payload, a piece of a JPEG 2000 codestream. The RTP header fields that have a meaning specific to a JPEG 2000 video stream are described as follows: Marker bit (M): The marker bit of the RTP fixed header MUST be set to 1 on the last RTP packet of a video frame, otherwise, it MUST be 0. When transmission is performed by multiple RTP sessions, this bit is 1 in the last packet of the frame in each session. Payload type (PT): The payload type is dynamically assigned by means outside the scope of this document. A payload type in the dynamic range shall be chosen by means of an out of band signaling protocol (e.g., RTSP, SIP, etc.) Timestamp: The RTP timestamp are in units of 90 kHz. The same timestamp value MUST appear in each RTP packet carrying a fragment of a given frame. When a JPEG 2000 image is in interlace format, the odd field and the corresponding even field MUST have the same timestamp. The initial value of the timestamp is to be random to counter known plaintext attacks on encryption. 4.2 RTP Payload Header Format The RTP payload header format for JPEG 2000 video stream 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 3: RTP payload header format for JPEG 2000 tp (type) : 2 bits This field indicates how a JPEG 2000 image is scanned (meaning - progressive or interlace). 0: If the payload is progressively scanned. 1: An image is the odd field of an interlaced video signal. The height specified in the JPEG 2000 main header is half Futemma, et al. [Page 6]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 of the height of the entire displayed image. In a receiver, an odd field should be de-interlaced with the even field following it so that lines from each image are displayed alternately. 2: An image is the even field of an interlaced video signal. 3: An image is a single field from an interlaced video signal, intended to be displayed full frame as if it were received as both the odd & even field of the frame. On a computer monitor, each line in the image should be displayed twice, doubling the height of the image. MHF (Main Header Flag) : 2 bits MHF indicates whether a main header or piece of a main header is in the RTP packet. If there is no header, MHF has a value of 0. If there is just a part of a fragmented header, MHF has a value of 1. If there is the last part of a fragmented header, MHF has value of 2. If the whole header in the packet, MHF has a value of 3. +----+-------------------------------------------------------+ |MHF | Description | +----+-------------------------------------------------------+ | 0 | no main header in the payload | | 1 | piece of fragmented header | | 2 | last part of a fragmented header | | 3 | a whole main header | +----+-------------------------------------------------------+ Table 1: MHF usage values mh_id (Main Header Identification) : 3 bits Main header identification value. This is used for JPEG 2000 main header recovery. For implementations following this specification, the sender SHOULD set this value to 0 and the receiver SHOULD ignore this field on processing. Usage of this header is described in further detail in documentXXX. Systems not using the method described in documentXXX at the sender this value SHOULD be set to 0 and receivers SHOULD ignore this value. T (Tile field invalidation flag) : 1 bit T bit indicates whether the tile number field is valid or invalid. A sender MUST set the T bit to 1 when the tile number field is invalid and 0 when valid. Futemma, et al. [Page 7]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 There are two cases where the tile number field is invalid. (1) When an RTP packet holds only the main header. A sender cannot set any number in the tile number field as no JPEG 2000 tile-part bitstream is included in the RTP packet. (2) Multiple tile-parts are packed together in one payload. If there are multiple tiles packed into one payload, there is no meaning to assign a number to the tile number field. priority : 8 bits The priority field indicates the importance of the JPEG 2000 packet included in the payload. Typically, a higher priority is set in the packets containing JPEG 2000 packets containing the lower sub-bands. For implementations following this specification, the sender SHOULD set this value to 255 and the receiver SHOULD ignore this field on processing. This header is described in detail in documentXXX. Systems not using the method described in documentXXX at the sender this value SHOULD be set to 0 and receivers SHOULD ignore this value. tile number : 16 bits This field shows the tile number that a payload belongs to only when the T bit is 0. If T bit is set to 1, the receiver MUST ignore this field. R (Reserved) : 8 bits This bit is reserved for future use. This MUST be set to 0 by the sender. Receivers MUST ignore this field. fragment offset : 24 bits This value MUST be set to the byte offset of the current payload in relation to the very beginning of each JPEG 2000 codestream (JPEG 2000 frame). Byte offsets are calculated from the start of each JPEG 2000 codestream upto the current position where the current payload would fit into the complete JPEG 2000 image codestream. To perform scalable video delivery by using multiple RTP sessions, the offset value from the first byte of the same frame is set for fragment offset. It is possible, to deliver layered video using multiple RTP sessions, the fragment offset may not start from 0 in some RTP sessions even if the packet is the first one received. Futemma, et al. [Page 8]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 5. RTP Packetization The sender must packetize the JPEG 2000 appropriately according to initial MIME parameters and/or details from SDP offer/answer parameters. A "packetization unit" is defined as either a JPEG 2000 main header, a tile-part header, or a JPEG 2000 packet. First, a sender divides the JPEG 2000 codestream into packetization units by parsing the codestream or by getting information from the encoder, and packs the packetization units into RTP packets. A sender can put an arbitrary number of packetization units into an RTP packet, but it MUST preserve the codestream order. An example of this kind of RTP packet format is below: +------+-------+---------------+---------------+ |RTP |payload| packetization | packetization | |header|header | unit | unit | +------+-------+---------------+---------------+ Figure 4: An Example of RTP packet format with multiple packetization units If a packetization unit with headers (IP header, RTP header and payload header) is larger than the MTU size, it MAY be fragmented. To pack a fragmented packetization unit, the fragmented unit MUST NOT be packed with the succeeding packetization unit within the same RTP packet. An example of this kind of RTP packet format is below: +------+-------+-------------------------------------------------+ |RTP |payload| packetization unit fragment | |header|header | | +------+-------+-------------------------------------------------+ +------+-------+-------------------------------------------------+ |RTP |payload| packetization unit fragment | |header|header | | +------+-------+-------------------------------------------------+ . . . +------+-------+--------------------------------------------+ |RTP |payload| end of packetization unit fragment | |header|header | | +------+-------+--------------------------------------------+ Figure 5: An Example of RTP packet format with a fragmented packetization unit 6. Security Consideration Futemma, et al. [Page 9]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 RTP packets using the payload format defined in this specification are subject to the security considerations discussed in the RTP specifications[3] and any applicable profile. This implies that confidentiality of the media streams is achieved by encryption. Data compression used with this payload format is applied end-to-end, encryption may be performed on the compressed data so there is no conflict between the two operations. A potential denial-of-service threat exists for data encodings using compression techniques that have non-uniform receiver-end computational load. The attacker can inject pathological datagrams into the stream which are complex to decode and cause the receiver to be overloaded. The usage of authentication of at least the RTP packet is RECOMMENDED, for example with SRTP [4]. If QoS enhanced service is used, RTP receivers SHOULD monitor packet loss to ensure that the service that was requested is actually being delivered. If it is not, then they SHOULD assume that they are receiving best-effort service and behave accordingly. If best-effort service is being used, users of this payload format MUST monitor packet loss to ensure that the packet loss rate is within acceptable parameters. Packet loss is considered acceptable if a TCP flow across the same network path, experiencing the same network conditions, would achieve an average throughput, measured on a reasonable timescale, that is not less than the RTP flow is achieving. This condition can be satisfied by implementing congestion control mechanisms to adapt the transmission rate (or the number of layers subscribed for a layered multicast session), or by arranging for a receiver to leave the session if the loss rate is unacceptably high. As with any IP-based protocol, in some circumstances a receiver may be overloaded simply by receiving too many packets, either desired or undesired. Network-layer authentication may be used to discard packets from undesired sources, but the processing cost of the authentication itself may be too high. In a multicast environment, pruning of specific sources may be implemented in future versions of IGMP [8] and in multicast routing protocols to allow a receiver to select which sources are allowed to reach it. 7. IANA Consideration 7.1 MIME Registration This document defines a new RTP payload name and associated MIME type, jpeg2000. The receiver MUST ignore any unspecified parameter. The MIME registration form for JPEG 2000 video stream is enclosed below: MIME media type name: video Futemma, et al. [Page 10]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 MIME subtype name: jpeg2000 REQUIRED parameters: sampling sampling: A list of values specifying the color space of the payload data. Acceptable values: - "RGB" - standard Red, Green, Blue color space. - "BGR" - standard Blue, Green, Red color space. - "RGBA" - standard Red, Green, Blue, Alpha color space. - "BGRA" - standard Blue, Green, Red, Alpha color space. - "YCbCr-4:4:4" - standard YCbCr color space, no subsampling - "YCbCr-4:2:2" - standard YCbCr color space, U & V are subsampled horizontally by 1/2 - "YCbCr-4:2:0" - standard YCbCr color space, U & V are subsampled horizontally and vertically by 1/2 - "YCbCr-4:1:1" - standard YCbCr color space, U & V are subsampled vertically by 1/4 - "GRAYSCALE" - basically a single component image of just multilevels of grey. OPTIONAL parameters: interlace: interlace scanning. If this options is present, it means the payload is in interlace format. Each complete image forms vertically half the display. tp value MUST properly specify the field the image represents odd(tp=1), even(tp=2), or frame(tp=3). If this option is not present, the payload is in progressive format and tp MUST be set to 0. width: A parameter describing the maximum width of the video stream. This parameter MUST appear when height is present. Acceptable values: - an integer value between 0 - 4,294,967,295. height: A parameter describing the maximum height of the video stream. This parameter MUST appear when width is present. Acceptable values: - an integer value between 0 - 4,294,967,295. Encoding considerations: JPEG 2000 video stream may be transmitted with RTP as specified in this document. Security considerations: see section 9 of RFC XXXX. Interoperability considerations: JPEG 2000 video stream is a sequence of JPEG 2000 still images. An implementation in compliant with [1] can decode and attempt to display the encoded JPEG 2000 video stream. Futemma, et al. [Page 11]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 Published specification: ISO/IEC 15444-1 | ITU-T Rec. T.800 Applications which use this media type: video streaming and communication Additional information: none Magic number(s): none File extension(s): none Macintosh File Type Code(s): none Person & email address to contact for further information: Eisaburo Itakura, Satoshi Futemma Email: {itakura|satosi-f}@sm.sony.co.jp Intended usage: COMMON Author/Change controller: Eisaburo Itakura, Satoshi Futemma Email: {itakura|satosi-f}@sm.sony.co.jp 7.2 SDP Parameters The MIME media type video/jpeg2000 string is mapped to fields in the Session Description Protocol (SDP) [4] as follows: o The media name in the "m=" line of SDP MUST be video. o The encoding name in the "a=rtpmap" line of SDP MUST be jpeg2000 (the MIME subtype). o The clock rate in the "a=rtpmap" line MUST be 90000. o The REQUIRED parameters "sampling", MUST be included in the "a=fmtp" line of SDP. o The OPTIONAL parameters "width", and "height", when present, MUST be included in the "a=fmtp" line of SDP. These parameters are expressed as a MIME media type string, in the form of a semicolon separated list of parameter=value pairs. Therefore, an example of media representation in SDP is as follows: m=video 49170/2 RTP/AVP 98 a=rtpmap:98 jpeg2000/90000 a=fmtp:98 sampling=YCbCr-4:2:0;width=128;height=128 8. Usage with the SDP Offer/Answer Model When offering JPEG 2000 over RTP using SDP in an Offer/Answer model Futemma, et al. [Page 12]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 [5], the following rules and limitations apply: o All parameters MUST have an acceptable value for that parameter. o All parameters MUST correspond to the parameters of the payload. o The parameters "sampling" MUST appear in the offer and the answer o For optional parameters "width" and "height" the following applies: -if "width" appears in the offer or answer, "height" MUST be present. -if "height" appears in the offer or answer, "width" MUST be present. 8.1 Examples An example offer/answer exchanges are provided. Alice offers YCbCr 422 color space, interlace image with 720-pixel width and 480-pixel height as below: v=0 o=alice 2890844526 2890844526 IN IP4 host.anywhere.com s= c=IN IP4 host.anywhere.com t=0 0 m=video 49170 RTP/AVP 98 a=rtpmap:98 jpeg2000/90000 a=fmtp:98 sampling=YCbCr-4:2:2;interlace a=fmtp:98 width=720; height=480 Bob accepts YCbCr-4:2:2 color space, interlace image and replies: v=0 o=bob 2890844730 2890844731 IN IP4 host.example.com s= c=IN IP4 host.example.com t=0 0 m=video 49920 RTP/AVP 98 a=rtpmap:98 jpeg2000/90000 a=fmtp:98 sampling=YCbCr-4:2:2;interlace 9. Intellectual Property Right Statement 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 Futemma, et al. [Page 13]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 documents can be found in BCP 78 and BCP 79. Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF on-line IPR repository at http://www.ietf.org/ipr. 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. 10. Informative Appendix 10.1 Recommended Practices As the JPEG 2000 coding standard is highly flexible, many different but compliant data streams can be produced and still be labeled as a JPEG 2000 data stream. The following is a set of recommendations set forth from our experience in developing JPEG 2000 and this payload specification. Implementations of this standard must handle all possibilities mentioned in this specification. The following is a listing of items an implementation could optimize. Error Resilience Markers The use of error resilience markers in the JPEG 2000 data stream is highly recommended in all situations. Error recovery with these markers is helpful to the decoder and save external resources. Markers such as: RESET, RESTART, and ERTERM. YCbCr Color space The YCbCr color space provides the greatest amount of compression in color with respect to the human visual system. When used with JPEG 2000, the usage of this color space can provide excellent visual results at extreme bit rates. Progression Ordering JPEG 2000 offers many different ways to order the final code stream to optimize the transfer with the presentation. The most useful ordering in our usage cases have been for layer progression and resolution progression ordering. Tiling and Packets Futemma, et al. [Page 14]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 JPEG 2000 packets are formed regardless of the encoding method. The encoder has little control over the size of these JPEG 2000 packets as they maybe large or small. Tiling splits the image up into smaller areas and each are encoded separately. With tiles, the JPEG 2000 packet sizes are also reduced. When using tiling, almost all JPEG 2000 packet sizes are an acceptable size (i.e. smaller than the MTU size of most networks.) Sender Processing There are no limitations as to how the sender should pack the payload. In general, the sender should pack headers separately from the rest of the codestream to make header recovery simple. Payloads should generally begin with an SOP marker and end with EPH marker for easier decoder processing. 10.2 Sample Headers in Detail This section has various sample headers in various configurations for reference. For reference, the payload header. 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 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ For the first packet with the main header, this is what it will look like. Note, for this example MTU will be taken as: 1500bytes (Ethernet) Sample 1: Progressive image with single tile, 3500bytes (i.e. thumbnail) First Packet: This packet will have the whole main header. 210bytes 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 1|1 0 1|1|0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF4FFF51002F000 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Futemma, et al. [Page 15]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 Second Packet: This packet will have a tile header and the first tile part LLband 1500bytes 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 1|1 0 1|0|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF90 000A 0000 0000 2DB3 0001 FF93 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Third Packet: This packet will have the next part in the tile, no tile header 1500bytes 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 0 1|0|0 0 0 0 0 0 1 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 0 1 1 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |E841 4526 4556 9850 C2EA .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Fourth Packet: Last packet for the image 290bytes 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 0 1|0|0 0 0 0 0 0 1 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 1 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |A55D 8B73 3B25 25C7 B9EB .... 2FBEB153| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Smaple 2: Image with 4 tiles First Packet: This packet will have the whole main header. 210bytes 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 1|0 0 1|1|0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Futemma, et al. [Page 16]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF4FFF51002F000 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Second Packet: This packet will have a first tile part (tile 0) 1400bytes 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|0 0 1|0|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF90 000A 0000 0000 0578 0001 FF93 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Third Packet: This packet will have a second tile part (tile 1) 1423bytes 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|0 0 1|0|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 1 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF90 000A 0001 0000 058F 0001 FF93 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Fourth Packet: This packet will have a third tile part (tile 2) 1355bytes 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|0 0 1|0|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 1 1 0 0 1| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF90 000A 0002 0000 054B 0001 FF93 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Fifth Packet: This packet will have a fourth tile part (tile 3) 1290bytes 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 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Futemma, et al. [Page 17]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 |0 0|0 0|0 0 1|0|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 0 1 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF90 000A 0003 0000 050A 0001 FF93 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Sample 3: Packing multiple tiles in single payload, fragmented header No header compensation, progressive image First Packet: This packet will have the first part of the main header. 110bytes 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|0 0 0|1|0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF4FFF51002F000 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Second Packet: This packet has the second part of the header. 1400bytes 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|0 0 0|1|0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF6400FF .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Third Packet: This packet has two tiles, tile 0 and tile 1 1400bytes 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|0 0 0|1|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 0 1 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF90 000A 0000 0000 02BC 0001 FF93 ... | |FF90 000A 0001 0000 02BC 0001 FF93 ... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Futemma, et al. [Page 18]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 Fourth Packet: This packet has one tile, tile 2 1395bytes 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|0 0 0|0|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 1 0 1 1 1 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF90 000A 0002 0000 0573 0001 FF93 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Sample 4: Interlace image, single tile First packet: This packet will have the whole main header for the odd field 210bytes 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|1 1|0 1 0|1|0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF4FFF51002F000 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Second packet: This packet will have the first part of the odd field's tile 1400bytes 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 0|0 1 0|1|0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF90 000A 0000 0000 0578 0001 FF93 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Third packet: This packet will have the second part of the odd field's tile 1400bytes 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 0|0 1 0|1|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 1 0 1 0| Futemma, et al. [Page 19]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |7F04 E708 27D9 D11D 22CB ... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Fourth packet: This packet will have the third part of the odd field's tile 1300bytes 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 0|0 1 0|1|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 0 0 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |98BD EC9B 2826 DC62 D4AB ... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Fifth packet: This packet will have the whole main header for the even field 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|0 1 1|1|0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF4FFF51002F000 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Sixth packet: This packet will have the first part of the odd field's tile 1400bytes 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|0 0|0 1 0|1|0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |FF90 000A 0000 0000 0578 0001 FF93 .... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Seventh packet: This packet will have the second part of the odd field's tile 1400bytes 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|0 0|0 1 0|1|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Futemma, et al. [Page 20]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 1 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |626C 42F0 166B 6BD0 F8E1 ... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Eighth packet: This packet will have the third part of the odd field's tile 1300bytes 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|0 0|0 1 0|1|0 0 0 0 0 0 0 1|0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |0 0 0 0 0 0 0 0|0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 0 0 0 1 0| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |8114 41D5 18AB 4A1B ... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 11. References Normative References [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. [2] S. Bradner, "Key words for use in RFCs to Indicate Requirement Levels", BCP14, RFC2119, March 1997. [3] H. Schulzrinne, S. Casner, R. Frederick, and V. Jacobson, "RTP: A Transport Protocol for Real Time Applications", STD 64, RFC 3550, July 2003. [4] M. Baugher, D. McGrew, M. Naslund, E. Carrara and K. Norrman, "The Secure Real-time Transport Protocol (SRTP)", RFC 3711, March 2004. [5] M. Handley and V. Jacobson, "SDP: Session Description Protocol", RFC 2327, April 1998. [6] J. Rosenberg and H. Schulzrinne, "An Offer/Answer Model with Session Description Protocol (SDP)", RFC 3264, June 2002. Informative References [7] ISO/IEC JTC1/SC29, ISO/IEC 15444-3 "Information technology - JPEG 2000 image coding system - Part 3: Motion JPEG 2000", July 2002. [8] Deering, S., "Host Extensions for IP Multicasting", STD 5, RFC 1112, August 1989. Futemma, et al. [Page 21]
INTERNET-DRAFT draft-ietf-avt-rtp-jpeg2000-07.txt December 30, 2004 12. Authors' Addresses Satoshi Futemma/Eisaburo Itakura/Andrew Leung Sony Corporation 6-7-35 Kitashinagawa Shinagawa-ku Tokyo 141-0001 JAPAN Phone: +81 3 5448 2125 Fax: +81 3 5448 4560 Email: {satosi-f|itakura}@sm.sony.co.jp, andrew.leung@jp.sony.com 13. Full Copyright Statement Copyright (C) The Internet Society (2004). 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 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. Futemma, et al. [Page 22]
