ISO/IEC 13818-4:1998/Amd 3:2000

INTERNATIONAL ISO/IEC
STANDARD 13818-4
First edition
1998-12-01
AMENDMENT 3
2000-10-01
Information technology — Generic coding
of moving pictures and associated audio
information —
Part 4:
Conformance testing
AMENDMENT 3: Additional audio
conformance bitstreams
Technologies de l'information — Codage générique des images animées et
des informations sonores associées —
Partie 4: Essais de conformité
AMENDEMENT 3: Courants continus de bits supplémentaires pour la
conformité sonore
Reference number
ISO/IEC 13818-4:1998/Amd.3:2000(E)
©
ISO/IEC 2000

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ISO/IEC 13818-4:1998/Amd.3:2000(E)
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ii © ISO/IEC 2000 – All rights reserved

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ISO/IEC 13818-4:1998/Amd.3:2000(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission)
form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC
participate in the development of International Standards through technical committees established by the
respective organization to deal with particular fields of technical activity. ISO and IEC technical committees
collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in
liaison with ISO and IEC, also take part in the work.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.
Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this Amendment may be the subject of patent
rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.
Amendment 3 to International Standard ISO/IEC 13818-4:1998 was prepared by Joint Technical Committee
ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and
hypermedia information.
© ISO/IEC 2000 – All rights reserved iii

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ISO/IEC 13818-4:1998/Amd.3:2000(E)
Information technology — Generic coding of moving pictures and
associated audio information —
Part 4:
Conformance testing
AMENDMENT 3:
Additional audio conformance bitstreams
1) In the foreword, replace the last sentence with the following:
“Annexes A to F of this part of ISO/IEC 13818 are for information only.”
2) Replace Table 2.6 with:
“
Feature bitstream number
22 23 35 37
Layer I III II II
matrix 003 0
extension Y Y N Y
transmission channel allocation Y N/A - Y
phantom centre N Y N N
prediction N N N N
Dynamic crosstalk N N/A N N
sampling frequency 44.1 48 44.1 48
LFE NNN N
multilingual N N N
multilingual sampling frequency - - -
ancillary data N N N N
bitrate base stream 384 320 384 384
bitrate extension stream 384 320 - 384.
configuration 3/2 3/2 3/2 3/2
dematrixing N/A Y N/A
segment lists N/A Y N/A
matrix attenuation N/A N N/A
scale factor select info N/A N N/A
Split MC_ CRC Y
NOTE
bitstreams 35: Bitstream intended for accuracy test. Output represented
with 24 bit resolution.
”
3) Add the following paragraph at the end of subclause 2.6.9.2:
“
L9, S18, S19, S20 and S21 are ADTS bitstreams described in the normative part of ISO/IEC 13818-7. Although parsing the
ADTS bitstream is not required for a conformant decoder, a decoder may optionally use ADTS, and so bitstreams are supplied.
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ISO/IEC 13818-4:1998/Amd.3:2000(E)
DRC1, DRC2 and DRC3 are Dynamic Range Control (DRC) bitstreams described in the normative part of ISO/IEC 13818-7.
The DRC syntax is backward compatible with the FILL element, so that these bitstreams must be parsed by conformant
decoders. However DRC semantics is optional, making the result of decoding the DRC bitstreams informative only.
”
4) Change Table 2-10 in subclause 2.6.9.2 with:
“
Table 2-10 – Main Profile Bitstreams
M1_fs M2_fs M3_fs DRC1_fs DRC2_fs DRC3_fs
bitrate 40/64 80/128 240/512 64/128 192/384 128/256
# single channel elements 1 0 1 0 1 1
# channel pair elements 0 1 2 1 2 1
# LFE channels 0 0 1 0 1 0
# Dep coupling channels 0 0 1 0 0 0
# Indep Coupling Channels 0 0 2 0 1 0
intensity Yes Yes Yes Yes Yes
MS Yes Yes Yes Yes Yes
prediction Yes Yes Yes Yes Yes Yes
window shape Yes Yes
tns Yes Yes Yes Yes Yes
pulse data
Multi program (2) Yes
Arithmetic torture Yes
Nonmeaningful
window_sequence transitions
Dynamic Range Control (DRC) Yes Yes Yes
”
5) Change Table 2-11 in subclause 2.6.9.2 with:
“
Table 2-11 – Low Complexity Profile Bitstreams
L1_fs L2_fs L3_fs L4_fs L5_fs L6_fs L7_fs L8_fs L9_fs
bitrate 40/64 40/64 40/64 40/64 80/128 120/ 240/ 1920/ 40/64
192 384 3072
#singlechannelelements 1111 0 1 1 16 1
#channelpairelements 0000 1 1 2 16 0
#LFEchannels 0000 0 0 1 0 0
#Depcouplingchannels 0000 0 0 1 0 0
Data stream elements Yes
intensity Yes Yes Yes Yes
MS Yes Yes Yes Yes
window shape Yes Yes Yes Yes
tns Yes Yes Yes Yes
pulse data Yes Yes Yes Yes
Buffer test Yes Yes
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ISO/IEC 13818-4:1998/Amd.3:2000(E)
Arithmetic torture Yes
Nonmeaningful window_sequence Yes
transitions
ADTS Yes
L10_fs L11_fs
bitrate 40/64 40/64
# single channel elements 1 1
# channel
...