5 9
"Early" AUs 8 12
Figure 10: Storage of "early" AUs in the de-interleave buffer per
interleaved AU.
A.5.3. Determining the Maximum Displacement
For this example, the maximum displacement has a value of 5 AU
periods. See Figure 11. Compared to the example in A.2, the maximum
displacement does not decrease, though in fact less de-interleave
buffering is required.
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+-
Interleaved AUs | 0| 1| 4| 2| 5| 8| 3| 6| 9|12| 7|10|13|16|
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+-
Earliest not yet
present AU - - 2 - 3 3 - - 7 7 - - 11 11
Figure 11: For each AU in the interleaving pattern, the earliest of
any earlier AUs not yet present
References
Normative References
[1] ISO/IEC International Standard 14496 (MPEG-4); "Information
technology - Coding of audio-visual objects", January 2000
[2] Schulzrinne, H., Casner, S., Frederick, R. and V. Jacobson,
"RTP: A Transport Protocol for Real-Time Applications", RFC
3550, July 2003.
[3] Freed, N., Klensin, J. and J. Postel, "Multipurpose Internet
Mail Extensions (MIME) Part Four: Registration Procedures", BCP
13, RFC 2048, November 1996.
[4] Bradner, S., "Key words for use in RFCs to Indicate Requirement
Levels", BCP 14, RFC 2119, March 1997.
[5] Handley, M. and V. Jacobson, "SDP: Session Description
Protocol", RFC 2327, April 1998.
[6] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA
Considerations Section in RFCs", BCP 26, RFC 2434, October 1998.
Informative References
[7] Hoffman, D., Fernando, G., Goyal, V. and M. Civanlar, "RTP
Payload Format for MPEG1/MPEG2 Video", RFC 2250, January 1998.
[8] Schulzrinne, H., Rao, A. and R. Lanphier, "Real-Time Session
Protocol (RTSP)", RFC 2326, April 1998.
[9] Perkins, C. and O. Hodson, "Options for Repair of Streaming
Media", RFC 2354, June 1998.
[10] Schulzrinne, H. and J. Rosenberg, "An RTP Payload Format for
Generic Forward Error Correction", RFC 2733, December 1999.
[11] Handley, M., Perkins, C. and E. Whelan, "Session Announcement
Protocol", RFC 2974, October 2000.
[12] Kikuchi, Y., Nomura, T., Fukunaga, S., Matsui, Y. and H. Kimata,
"RTP Payload Format for MPEG-4 Audio/Visual Streams", RFC 3016,
November 2000.
Authors’ Addresses
Jan van der Meer
Philips Electronics
Prof Holstlaan 4
Building WAH-1
5600 JZ Eindhoven
Netherlands
EMail: jan.vandermeer@philips.com
David Mackie
Apple Computer, Inc.
One Infinite Loop, MS:302-3KS
Cupertino CA 95014
EMail: dmackie@apple.com
Viswanathan Swaminathan
Sun Microsystems Inc.
2600 Casey Avenue
Mountain View, CA 94043
EMail: viswanathan.swaminathan@sun.com
David Singer
Apple Computer, Inc.
One Infinite Loop, MS:302-3MT
Cupertino CA 95014
EMail: singer@apple.com
Philippe Gentric
Philips Electronics
51 rue Carnot
92156 Suresnes
France
EMail: philippe.gentric@philips.com
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