1、 Reference number ISO/IEC TR 13818-5:2005(E) ISO/IEC 2005TECHNICAL REPORT ISO/IEC TR 13818-5 Second edition 2005-10-15Information technology Generic coding of moving pictures and associated audio information Part 5: Software simulation Technologies de linformation Codage gnrique des images animes et
2、 des informations sonores associes Partie 5: Simulation de logiciel ISO/IEC TR 13818-5:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded a
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5、lating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm
6、, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 20
7、05 All rights reservedISO/IEC TR 13818-5:2005(E) ISO/IEC 2005 All rights reserved iiiContents Page Foreword iv Introductionvi 1 Scope1 2 Normative references1 3 Terms and definitions .2 4 Symbols and abbreviations17 5 Systems simulation.17 6 Video simulation18 7 Audio simulation .18 7.1 Layer 1, Lay
8、er 2 and Layer 3 18 7.2 AAC.18 8 MPEG-2 IPMP Reference Software 19 8.1 Architecture .19 8.2 Core Components .20 8.3 Usage of the Reference Software 25 Annex A (normative) Electronic annex containing software29 Annex B (informative) List of patent holders .30 Bibliography32 ISO/IEC TR 13818-5:2005(E)
9、 iv ISO/IEC 2005 All rights reservedInternational Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee a
10、re circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. In exceptional circumstances, the joint technical committee may propose the publication of a Technical Report of one of the following types:
11、 type 1, when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts; type 2, when the subject is still under technical development or where for any other reason there is the future but not immediate possibility of an agreement on an Intern
12、ational Standard; type 3, when the joint technical committee has collected data of a different kind from that which is normally published as an International Standard (“state of the art”, for example). Technical Reports of types 1 and 2 are subject to review within three years of publication, to dec
13、ide whether they can be transformed into International Standards. Technical Reports of type 3 do not necessarily have to be reviewed until the data they provide are considered to be no longer valid or useful. ISO/IEC 13818 consists of the following parts, under the general title Information technolo
14、gy Generic coding of moving pictures and associated audio information: Part 1: Systems Part 2: Video Part 3: Audio ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. ISO/IEC 13818-5, which is a Technical Report of type 3, was p
15、repared by Joint Technical Committee Part 4: Conformance testing Part 5: Software simulation Technical Report Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National
16、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. Oth
17、er international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. This second edition cancels and replaces the first edition (ISO
18、/IEC 13818-5:1997), which has been technically revised. It also incorporates the Amendments ISO/IEC TR 13818-5:1997/Amd.1:1999 and ISO/IEC TR 13818-5:1997/Amd.2:2005, and the Technical Corrigenda ISO/IEC TR 13818-5:1997/Amd.1:1999/Cor.1:2003 and ISO/IEC TR 13818-5:1997/Amd.1:1999/Cor.2:2004. ISO/IEC
19、 TR 13818-5:2005(E) ISO/IEC 2005 All rights reserved v Part 6: Extensions for DSM-CC Part 7: Advanced Audio Coding (AAC) Part 9: Extension for real time interface for systems decoders Part 10: Conformance extensions for Digital Storage Media Command and Control (DSM-CC) Part 11: IPMP on MPEG-2 syste
20、ms ISO/IEC TR 13818-5:2005(E) vi ISO/IEC 2005 All rights reservedIntroduction This Part of ISO/IEC 13818 was developed in response to the growing need for a generic coding method of moving pictures and of associated sound for various applications such as digital storage media, television broadcastin
21、g and communication. The use of this specification means that motion video can be manipulated as a form of computer data and can be stored on various storage media, transmitted and received over existing and future networks and distributed on existing and future broadcasting channels. The Internatio
22、nal Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) draw attention to the fact that it is claimed that compliance with this document may involve the use of patents. The ISO and IEC take no position concerning the evidence, validity and scope of this patent
23、right. The holder of this patent right has assured the ISO and IEC that he is willing to negotiate licences under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holder of this patent right is registered with the ISO
24、and IEC. Information may be obtained from the companies listed in Annex B. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified in Annex B. ISO and IEC shall not be held responsible for identifying any or all
25、 such patent rights. TECHNICAL REPORT ISO/IEC TR 13818-5:2005(E) ISO/IEC 2005 All rights reserved 11 Scope This Technical Report provides a C language software simulation of an encoder and decoder for Part 1 (Systems), Part 2 (Video), Part 3 (Audio), Part 7 (AAC) and Part 11 (IPMP) of ISO/IEC 13818.
26、 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 639 (all parts), Code
27、 for the representation of names of languages ISO 8859-1, Information processing - 8-bit single-byte coded graphic character sets - Part 1: Latin alphabet No. 1 ISO/IEC 10918-1:1994, Information technology - Digital compression and coding of continuous-tone still images: Requirements and guidelines
28、(See also ITU-T Rec. T.81.) ISO/IEC 11172-1:1993, Information technology - Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s - Part 1: Systems ISO/IEC 11172-2:1993, Information technology - Coding of moving pictures and associated audio for digital st
29、orage media at up to about 1,5 Mbit/s - Part 2: Video ISO/IEC 11172-3:1993, Information technology - Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s - Part 3: Audio ISO/IEC 11172-4:1995, Information technology - Coding of moving pictures and associa
30、ted audio for digital storage media at up to about 1,5 Mbit/s - Part 4: Compliance testing ISO/IEC 11172-5:1998, Information technology - Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s - Part 5: Software simulation ISO/IEC 11172-6, Information tech
31、nology - Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s - Part 5: Specification for implementation of Inverse Discrete Cosine Transform ITU-T Rec. H.222.0 (2000) | ISO/IEC 13818-1:2000, Information technology - Generic coding of moving pictures and
32、 associated audio information : Systems ITU-T Rec. H.262 (2000) | ISO/IEC 13818-2:2000, Information technology - Generic coding of moving pictures and associated audio information : Video (See also ITU-T Rec. H.262.) ISO/IEC 13818-3:1998, Information technology - Generic coding of moving pictures an
33、d associated audio information - Part 3: Audio ISO/IEC 13818-4:2004, Information technology - Generic coding of moving pictures and associated audio information - Part 4: Conformance testing ISO/IEC 13818-7:2004, Information technology Generic coding of moving pictures and associated audio informati
34、on - Part 7: Advanced Audio Coding (AAC) Information technology Generic coding of moving pictures and associated audio information Part 5: Software simulation ISO/IEC TR 13818-5:2005(E) 2 ISO/IEC 2005 All rights reservedISO/IEC 13818-11:2004, Information technology Generic coding of moving pictures
35、and associated audio information Part 11: IPMP on MPEG-2 systems 3 Terms and definitions For the purposes of this document, the following definitions apply. 3.1 16x8 prediction video: A prediction mode similar to field-based prediction but where the predicted block size is 16x8 luminance samples. 3.
36、2 AC coefficient video: Any DCT coefficient for which the frequency in one or both dimensions is non- zero. 3.3 access unit systems: A coded representation of a presentation unit. In the case of audio, an access unit is the coded representation of an audio frame. In the case of video, an access unit
37、 includes all the coded data for a picture, and any stuffing that follows it, up to but not including the start of the next access unit. If a picture is not preceded by a group_start_code or a sequence_header_code, the access unit begins with the picture start code. If a picture is preceded by a gro
38、up_start_code and/or a sequence_header_code, the access unit begins with the first byte of the first of these start codes. If it is the last picture preceding a sequence_end_code in the bitstream all bytes between the last byte of the coded picture and the sequence_end_code (including the sequence_e
39、nd_code) belong to the access unit. 3.4 adaptive bit allocation audio: The assignment of bits to subbands in a time and frequency varying fashion according to a psychoacoustic model. 3.5 adaptive multichannel prediction audio: A method of multichannel data reduction exploiting statistical inter-chan
40、nel dependencies. 3.6 adaptive noise allocation audio: The assignment of coding noise to frequency bands in a time and frequency varying fashion according to a psychoacoustic model. 3.7 adaptive segmentation audio: A subdivision of the digital representation of an audio signal in variable segments o
41、f time. 3.8 alias audio: Mirrored signal component resulting from sub-Nyquist sampling. 3.9 analysis filterbank audio: Filterbank in the encoder that transforms a broadband PCM audio signal into a set of subsampled subband samples. 3.10 ancillary data audio: part of the bitstream that might be used
42、for transmission of ancillary data. 3.11 audio access unit audio: For Layers I and II, an audio access unit is defined as the smallest part of the encoded bitstream which can be decoded by itself, where decoded means “fully reconstructed sound“. For Layer III, an audio access unit is part of the bit
43、stream that is decodable with the use of previously acquired main information. 3.12 audio buffer audio: A buffer in the system target decoder for storage of compressed audio data. 3.13 audio sequence audio: A non-interrupted series of audio frames (base frames plus optional extension frames) in whic
44、h the following parameters are not changed: ISO/IEC TR 13818-5:2005(E) ISO/IEC 2005 All rights reserved 3- ID - Layer - Sampling Frequency For Layer I and II, a decoder is not required to support a continuously variable bitrate (change in the bitrate index) of the base stream. Such a relaxation of r
45、equirements does not apply to the extension stream. 3.14 B-field picture video: A field structure B-Picture. 3.15 B-frame picture video: A frame structure B-Picture. 3.16 B-picture; bidirectionally predictive-coded picture video: A picture that is coded using motion compensated prediction from past
46、and/or future reference fields or frames. 3.17 backward compatibility: A newer coding standard is backward compatible with an older coding standard if decoders designed to operate with the older coding standard are able to continue to operate by decoding all or part of a bitstream produced according
47、 to the newer coding standard. 3.18 backward motion vector video: A motion vector that is used for motion compensation from a reference frame or reference field at a later time in display order. 3.19 backward prediction video: Prediction from the future reference frame (field). 3.20 Bark audio: Unit
48、 of critical band rate. The Bark scale is a non-linear mapping of the frequency scale over the audio range closely corresponding with the frequency selectivity of the human ear across the band. 3.21 base layer video: First, independently decodable layer of a scalable hierarchy. 3.22 big picture vide
49、o: A coded picture that would cause VBV buffer underflow as defined in C.7 Annex C of ISO/IEC 13818-2. Big pictures can only occur in sequences where low_delay is equal to 1. “Skipped picture” is a term that is sometimes used to describe the same concept. 3.23 bitrate audio: The rate at which the compressed bitstream is delivered to the input of a decoder. 3.24 bitstream; stream: An ordered series of bits that forms the coded representation of the data. 3.25
