1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563
|
Network Working Group J. Rosenberg
Request for Comments: 3009 dynamicsoft
Category: Standards Track H. Schulzrinne
Columbia U.
November 2000
Registration of parityfec MIME types
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract
The RTP (Real-time Transport Protocol) payload format for generic
forward error correction allows RTP participants to improve loss
resiliency through the use of traditional parity-based channel codes.
This payload format requires four new MIME types, audio/parityfec,
video/parityfec, text/parityfec and application/parityfec. This
document serves as the MIME type registration for those formats.
1 Introduction
The RTP payload format for generic forward error correction [1]
allows RTP participants to improve loss resiliency through the use of
traditional parity-based channel codes. This payload format requires
four new MIME types, audio/parityfec, video/parityfec,
text/paritfyfec and application/parityfec. RFC 2048 [2] defines
procedures for registration of new MIME types within the IETF tree.
Furthermore, the Audio/Video Transport working group has defined
additional procedures that must be followed when registering RTP
payload formats [3]. This document serves as the MIME type
registration for those formats based on those procedures.
Rosenberg & Schulzrinne Standards Track [Page 1]
RFC 3009 FEC MIME November 2000
2 Registration of audio/parityfec
To: ietf-types@iana.org
Subject: Registration of MIME media type audio/parityfec
MIME media type name: audio
MIME subtype name: parityfec
Required parameters: none
Note that [3] mandates that RTP payload formats without a
defined rate must define a rate parameter as part of their
MIME registration. The payload format for generic forward
error correction [1] does not specify a rate parameter.
However, the rate for FEC data is equal to the rate of the
media data it protects.
Optional parameters: none
Typical optional parameters [3], such as the number of
channels, and the duration of audio per packet, do not
apply to FEC data. The number of channels is effectively
the same as the media data it protects; the same is true
for the duration of audio per packet.
Encoding considerations: This format is only defined for
transport within the Real Time Transport protocol (RTP)
[4,5]. Its transport within RTP is fully specified with RFC
2733 [1].
Security considerations: the same security considerations
apply to these mime registrations as to the payloads for
for them, as detailed in RFC 2733.
Interoperability considerations: none
Published specification: This MIME type is described fully
within RFC 2733 [1].
Applications which use this media type: Audio and video
streaming tools which seek to improve resiliency to loss by
sending additional data with the media stream.
Additional information: none
Rosenberg & Schulzrinne Standards Track [Page 2]
RFC 3009 FEC MIME November 2000
Person & email address to contact for further information:
Jonathan Rosenberg
dynamicsoft
72 Eagle Rock Avenue
First Floor
East Hanover, NJ 07936
email: jdrosen@dynamicsoft.com
jdrosen@alum.mit.edu
Intended usage: COMMON
Author/Change controller: This registration is part of the IETF
registration tree.
RTP and SDP Issues: Usage of this format within RTP and the
Session Description Protocol (SDP) [6] are fully specified
within RFC 2733 [1].
3 Registration of video/parityfec
To: ietf-types@iana.org
Subject: Registration of MIME media type video/parityfec
MIME media type name: video
MIME subtype name: parityfec
Required parameters: none
Note that [3] mandates that RTP payload formats without a
defined rate must define a rate parameter as part of their
MIME registration. The payload format for generic forward
error correction [1] does not specify a rate parameter.
However, the rate for FEC data is equal to the rate of the
media data it protects.
Optional parameters: none
Typical optional parameters [3], such as the number of
channels, and the duration of audio per packet, do not
apply to FEC data. The number of channels is effectively
the same as the media data it protects; the same is true
for the duration of video per packet.
Rosenberg & Schulzrinne Standards Track [Page 3]
RFC 3009 FEC MIME November 2000
Encoding considerations: This format is only defined for
transport within the Real Time Transport protocol (RTP)
[4,5]. Its transport within RTP is fully specified with RFC
2733 [1].
Security considerations: the same security considerations
apply to these MIME registrations as to the payloads for
for them, as detailed in RFC 2733.
Interoperability considerations: none
Published specification: This MIME type is described fully
within RFC 2733 [1].
Applications which use this media type: Audio and video
streaming tools which seek to improve resiliency to loss by
sending additional data with the media stream.
Additional information: none
Person & email address to contact for further information:
Jonathan Rosenberg
dynamicsoft
72 Eagle Rock Avenue
First Floor
East Hanover, NJ 07936
email: jdrosen@dynamicsoft.com
jdrosen@alum.mit.edu
Intended usage: COMMON
Author/Change controller: This registration is part of the IETF
registration tree.
RTP and SDP Issues: Usage of this format within RTP and the
Session Description Protocol (SDP) [6] are fully specified
within RFC 2733 [1].
4 Registration of text/parityfec
To: ietf-types@iana.org
Subject: Registration of MIME media type text/parityfec
MIME media type name: text
MIME subtype name: parityfec
Rosenberg & Schulzrinne Standards Track [Page 4]
RFC 3009 FEC MIME November 2000
Required parameters: none
Note that [3] mandates that RTP payload formats without a
defined rate must define a rate parameter as part of their
MIME registration. The payload format for generic forward
error correction [1] does not specify a rate parameter.
However, the rate for FEC data is equal to the rate of the
media data it protects.
Optional parameters: none
Typical optional parameters [3], such as the number of
channels, and the duration of audio per packet, do not
apply to FEC data. The number of channels is effectively
the same as the media data it protects; the same is true
for the duration of text per packet.
Encoding considerations: This format is only defined for
transport within the Real Time Transport protocol (RTP)
[4,5]. Its transport within RTP is fully specified with RFC
2733 [1].
Security considerations: the same security considerations
apply to these MIME registrations as to the payloads for
for them, as detailed in RFC 2733.
Interoperability considerations: none
Published specification: This MIME type is described fully
within RFC 2733 [1].
Applications which use this media type: Audio, video and text
streaming tools which seek to improve resiliency to loss by
sending additional data with the media stream.
Additional information: none
Person & email address to contact for further information:
Jonathan Rosenberg
dynamicsoft
72 Eagle Rock Avenue
First Floor
East Hanover, NJ 07936
email: jdrosen@dynamicsoft.com
jdrosen@alum.mit.edu
Intended usage: COMMON
Rosenberg & Schulzrinne Standards Track [Page 5]
RFC 3009 FEC MIME November 2000
Author/Change controller: This registration is part of the IETF
registration tree.
RTP and SDP Issues: Usage of this format within RTP and the
Session Description Protocol (SDP) [6] are fully specified
within RFC 2733 [1].
5 Registration of application/parityfec
To: ietf-types@iana.org
Subject: Registration of MIME media type application/parityfec
MIME media type name: application
MIME subtype name: parityfec
Required parameters: none
Note that [3] mandates that RTP payload formats without a
defined rate must define a rate parameter as part of their
MIME registration. The payload format for generic forward
error correction [1] does not specify a rate parameter.
However, the rate for FEC data is equal to the rate of the
media data it protects.
Optional parameters: none
Typical optional parameters [3], such as the number of
channels, and the duration of audio per packet, do not
apply to FEC data. The number of channels is effectively
the same as the media data it protects; the same is true
for the duration of application data per packet.
Encoding considerations: This format is only defined for
transport within the Real Time Transport protocol (RTP)
[4,5]. Its transport within RTP is fully specified with RFC
2733 [1].
Security considerations: the same security considerations
apply to these MIME registrations as to the payloads for
for them, as detailed in RFC 2733.
Interoperability considerations: none
Published specification: This MIME type is described fully
within RFC 2733 [1].
Rosenberg & Schulzrinne Standards Track [Page 6]
RFC 3009 FEC MIME November 2000
Applications which use this media type: Audio, video and
application streaming tools which seek to improve
resiliency to loss by sending additional data with the
media stream.
Additional information: none
Person & email address to contact for further information:
Jonathan Rosenberg
dynamicsoft
72 Eagle Rock Avenue
First Floor
East Hanover, NJ 07936
email: jdrosen@dynamicsoft.com
jdrosen@alum.mit.edu
Intended usage: COMMON
Author/Change controller: This registration is part of the IETF
registration tree.
RTP and SDP Issues: Usage of this format within RTP and the
Session Description Protocol (SDP) [6] are fully specified
within RFC 2733 [1].
6 Security Considerations
This MIME registration does not introduce any additional security
considerations.
Rosenberg & Schulzrinne Standards Track [Page 7]
RFC 3009 FEC MIME November 2000
7 Authors' Addresses
Jonathan Rosenberg
dynamicsoft
72 Eagle Rock Avenue
First Floor
East Hanover, NJ 07936
EMail: jdrosen@dynamicsoft.com
Henning Schulzrinne
Columbia University
M/S 0401
1214 Amsterdam Ave.
New York, NY 10027-7003
EMail: schulzrinne@cs.columbia.edu
Rosenberg & Schulzrinne Standards Track [Page 8]
RFC 3009 FEC MIME November 2000
8 Bibliography
[1] Rosenberg, J. and H. Schulzrinne, "An RTP Payload Format for
Generic Forward Error Correction", RFC 2733, December 1999.
[2] Freed, N., Klensin, J. and J. Postel, "Multipurpose Internet Mail
Extensions (MIME) Part Four: Registration Procedures", RFC 2048,
November 1996.
[3] Casner, S. and P. Hoschka, "MIME type registration of RTP payload
formats", Work in Progress.
[4] Schulzrinne, H., Casner, S., Frederick, R. and V. Jacobson,
"RTP: a transport protocol for real-time applications", RFC 1889,
January 1996.
[5] Schulzrinne, H., Casner, S., Frederick, R. and V. Jacobson, "RTP:
a transport protocol for real-time applications", Work in
Progress.
[6] Handley, M. and V. Jacobson, "SDP: Session Description Protocol",
RFC 2327, April 1998.
Rosenberg & Schulzrinne Standards Track [Page 9]
RFC 3009 FEC MIME November 2000
9 Full Copyright Statement
Copyright (C) The Internet Society (2000). All Rights Reserved.
This document and translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it
or assist in its implementation may be prepared, copied, published
and distributed, in whole or in part, without restriction of any
kind, provided that the above copyright notice and this paragraph are
included on all such copies and derivative works. However, this
document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
copyrights defined in the Internet Standards process must be
followed, or as required to translate it into languages other than
English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS 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.
Acknowledgement
Funding for the RFC Editor function is currently provided by the
Internet Society.
Rosenberg & Schulzrinne Standards Track [Page 10]
|