1、Information technology MPEG audio technologies Part 2: Spatial Audio Object Coding (SAOC) AMENDMENT 2: SAOC reference software Technologies de linformation Technologies audio MPEG Partie 2: Codage dobjet audio spatial (SAOC) AMENDEMENT 2: Logiciel de rfrence SAOC INTERNATIONAL STANDARD ISO/IEC 23003
2、-2 First edition 2010-10-01 Reference number ISO/IEC 23003-2:2010/Amd.2:2015(E) AMENDMENT 2 2015-05-01 ISO/IEC 2015 ii ISO/IEC 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized
3、 otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright o
4、ffice 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 ISO/IEC 23003-2:2010/Amd.2:2015(E) ISO/IEC 23003-2:2010/Amd.2:2015(E) Foreword ISO (the International Organization for Standardization) and IEC (the I
5、nternational 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 particula
6、r 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. In the field of information technology, ISO and IEC have establish
7、ed a joint technical committee, ISO/IEC JTC 1. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of document should be noted. This d
8、ocument was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying a
9、ny or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of
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11、entary information The committee responsible for this document is ISO/IEC JTC 1, Information technology, SC 29, Coding of audio, picture, multimedia and hypermedia information. ISO/IEC 2015 All rights reserved iii Information technology MPEG audio technologies Part 2: Spatial Audio Object Coding (SA
12、OC) AMENDMENT 2: SAOC reference software Add Clause 11, Reference software, as follows: 11 Reference software 11.1 Reference software structure 11.1.1 Introduction This Clause contains simulation software for SAOC as defined in Clauses 1 to 9 and Annexes A to G. This software has been derived from v
13、erification models used in the process of developing the standard. Reference software is normative in the sense that it correctly implements the SAOC transcoding/decoding processes described in this part of ISO/IEC 23003. Complying with this part of ISO/IEC 23003 implementations are not expected to
14、follow the algorithms or the programming techniques used by the reference software. Although the decoding software is considered normative, it cannot add anything to the textual technical description of SAOC included in this part of ISO/IEC 23003. The software contained in this Clause and in Annex H
15、 is divided into three categories: a) Bitstream decoding software is catalogued in 1.2. This software accepts bitstreams encoded according to the normative specification in this part of ISO/IEC 23003 and decodes the streams into the audio signals associated with each bitstream. While this software a
16、ppears in the normative part of this specification, attention is drawn to the fact that the implementation techniques used in this software are not considered normative several different implementations could produce the same result but the software is considered normative in that it correctly imple
17、ments the MPEG Surround decoding processes described in this part of ISO/IEC 23003. b) Bitstream encoding software is catalogued in Annex H.1. This software creates bitstreams from associated audio signals. The encoders are provided as a means to obtain bitstreams with the normative syntax described
18、 in ISO/IEC 23003-2. The techniques used for encoding are not specified by this specification, and the quality and complexity of these encoders has not been optimized. c) Utility software is catalogued in Annex H.2. This software was found useful by the developers of the standard, but may not confor
19、m to the normative specifications given in this part of ISO/IEC 23003. File locations in the source tree given in this part of ISO/IEC 23003 are expressed relative to the location of the corresponding reference software package attached to this part of ISO/IEC 23003. ISO/IEC 23003-2:2010/Amd.2:2015(
20、E) ISO 2015 All rights reserved 1 ISO/IEC 23003-2:2010/Amd.2:2015(E) 11.1.2 Copyright disclaimer for software modules Each source code module in this specification contains a copyright disclaimer which shall not be removed from the source code module. The generic version of this disclaimer is provid
21、ed below. Software Copyright License and Disclaimer for MPEG Standards This software module was originally developed by () and edited by (), (), in the course of development of the for reference purposes and its performance may not have been optimized. This software module is an implementation of on
22、e or more tools as specified by the . ISO/IEC gives You a royalty-free, worldwide, non-exclusive, copyright license to copy, distribute, and make derivative works of this software module or modifications thereof for use in implementations of the in products that satisfy conformance criteria (if any)
23、. Those intending to use this software module in products are advised that its use may infringe existing patents. ISO/IEC have no liability for use of this software module or modifications thereof. Copyright is not released for products that do not conform to audio visual and image-coding related IT
24、U Recommen- dations and/or ISO/IEC International Standards. Assurance that the originally developed software module can be used (1) in the once the has been adopted; and (2) to develop the :grants ISO/IEC all rights necessary to include the originally developed software module or modifications there
25、of in the and to permit ISO/IEC to offer You a royalty-free, worldwide, non-exclusive, copyright license to copy, distribute, and make derivative works for use in implementations of the in products that satisfy conformance criteria (if any), and to the extent that such originally developed software
26、module or portions of it are included in the . To the extent that owns patent rights that would be required to make, use, or sell the originally developed software module or portions thereof included in the in a conforming product, will assure the ISO/IEC that it is willing to negotiate licenses und
27、er reasonable and non-discriminatory terms and conditions with applicants throughout the world. ISO/IEC gives You a free license to this software module or modifications thereof for the sole purpose of developing the .retains full right to modify and use the code for its own purpose, assign or donat
28、e the code to a third party and to inhibit third parties from using the code for products that do not conform to MPEG-related ITU Recommendations and/or ISO/IEC Inter- national Standards. This copyright notice must be included in all copies or derivative works. Copyright (c) ISO/IEC 2015. Disclaimer
29、: The software module is provided “as is”. In no event shall ISO, IEC or companies that originally submitted the parts of the software module be liable for any damages whatsoever (including, but not limited to, damages for loss of profits, business interruption, loss of information, or any other pec
30、uniary loss) arising out of or related to the use of or inability to use the software module. All warranties, express or implied, including but not limited to warranties of merchantability and fitness for a particular purpose are disclaimed. NOTE 1 In the text should be replaced with the appropriate
31、 International Standard, e.g. ISO/IEC 23003-2. NOTE 2 = First Name, = Last name, = Company Name. NOTE 3 Sentences in italics are not required in the statement if the original developer does not wish to be identified. NOTE 4 Sentences in bold are not required in the statement if the original develope
32、r allows unrestricted use of this software. NOTE 5 Sentences underlined should be removed when the is published. NOTE 6 Reference to “ITU Recommendation” may be omitted when the module is deemed not to be relevant for ITU Recommendations. 11.2 Bitstream decoding software 11.2.1 Introduction The prov
33、ided bitstream decoding software is a normative reference implementation of the respective specification.2 ISO 2015 All rights reserved ISO/IEC 23003-2:2010/Amd.2:2015(E) 11.2.2 SAOC decoding software Location Content saoc2mps SAOC transcoder/decoder mcu SAOC MCU combiner mp4spatialdec LD-MPS decode
34、r Add Annex H: Annex H (informative) Reference software H.1 Bitstream encoding software H.1.1 Introduction For the bitstream encoding software provided here, attention is called to the fact that these encoders are provided for the purpose of creating bitstreams with normative syntax. The performance
35、 of these encoders should not be taken as indicative of that which can be obtained from implementations where quality and computational optimization are given priority. The techniques used for encoding are not specified by this specification. H.1.2 MPEG SAOC encoding software Location Content saocen
36、c SAOC encoder mp4spatialenc LD-MPS encoder H.2 Additional utility software H.2.1 Introduction Software that appears in this Annex has proven to be useful to the developers of the standard but is not a normative reference implementation. H.2.2 MPEG SAOC utility software Location Content conf_saoc To
37、ols for SAOC conformance H.3 Providers of reference software The following organizations have contributed software: Dolby Sweden AB Fraunhofer Institute for Integrated Circuits IIS Royal Philips Electronics N.V. ISO 2015 All rights reserved 3 ISO/IEC 23003-2:2010/Amd.2:2015(E)ICS 35.040 Price based on 3 pages ISO/IEC 2015 All rights reserved
