1、 International Telecommunication Union ITU-T T.802TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 1(04/2010) SERIES T: TERMINALS FOR TELEMATIC SERVICES Still-image compression JPEG 2000 Information technology JPEG 2000 image coding system: Motion JPEG 2000 Amendment 1: Additional profiles
2、for archiving applications Recommendation ITU-T T.802 (2005) Amendment 1 ITU-T T-SERIES RECOMMENDATIONS TERMINALS FOR TELEMATIC SERVICES Facsimile Framework T.0T.19 Still-image compression Test charts T.20T.29 Facsimile Group 3 protocols T.30T.39 Colour representation T.40T.49 Character coding T.50T
3、.59 Facsimile Group 4 protocols T.60T.69 Telematic services Framework T.70T.79 Still-image compression JPEG-1, Bi-level and JBIG T.80T.89 Telematic services ISDN Terminals and protocols T.90T.99 Videotext Framework T.100T.109 Data protocols for multimedia conferencing T.120T.149 Telewriting T.150T.1
4、59 Multimedia and hypermedia framework T.170T.189 Cooperative document handling T.190T.199 Telematic services Interworking T.300T.399 Open document architecture T.400T.429 Document transfer and manipulation T.430T.449 Document application profile T.500T.509 Communication application profile T.510T.5
5、59 Telematic services Equipment characteristics T.560T.649 Still-image compression JPEG 2000 T.800T.829Still-image compression JPEG XR T.830T.849 Still-image compression JPEG-1 extensions T.850T.899 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T T.802 (2005)/Amd.1
6、 (04/2010) i INTERNATIONAL STANDARD ISO/IEC 15444-3 RECOMMENDATION ITU-T T.802 Information technology JPEG 2000 image coding system: Motion JPEG 2000 Amendment 1 Additional profiles for archiving applications Summary Amendment 1 to ITU-T T.802 (2005) | ISO/IEC 15444-3:2007 introduces additional prof
7、iles for archiving applications that define preservation and access profiles for moving pictures within the Motion JPEG 2000 file format. In the new parts of Annex A, profiles are defined, audio formats and image code stream profiles for archival purposes (with code stream profile indicator 5 to 7)
8、are referenced and constraints are set. In the new parts of Annex B, guidelines are given for ingesting content into cinematic archives, for disseminating of content from cinematic archives, for the exchange of content between archives, for the use of the MXF file format in archives and for general
9、procedures to manage archives. History Edition Recommendation Approval Study Group 1.0 ITU-T T.802 2005-01-08 16 1.1 ITU-T T.802 (2005) Amend.1 2010-04-22 16 ii Rec. ITU-T T.802 (2005)/Amd.1 (04/2010) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency i
10、n the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to s
11、tandardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations i
12、s covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to
13、 indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g., interoperability or applicability) and compliance with the Recommendation is ac
14、hieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTU
15、AL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether
16、 asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cauti
17、oned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2010 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of I
18、TU. ISO/IEC 15444-3:2007/Amd.1:2010 (E) Rec. ITU-T T.802 (2005)/Amd.1 (04/2010) 1 INTERNATIONAL STANDARD RECOMMENDATION ITU-T Information technology JPEG 2000 image coding system: Motion JPEG 2000 Amendment 1 Additional profiles for archiving applications 1) Clause 2 Normative references Add the fol
19、lowing items to the list of the normative references: ISO/IEC 14496-3:2009, Information technology Coding of audio-visual objects Part 3: Audio. ISO/IEC 26428-1:2008, Digital cinema (D-cinema) distribution master Part 1: Image characteristics. 2) Annex A 2.1) Clause A.1 In A.1, replace the following
20、 sentence: This Recommendation | International Standard defines two profiles: with This Recommendation | International Standard defines four profiles: In A.1, append the following numeration: 3) Motion Picture Archive Preservation Format. The brand mpap indicates the Motion JPEG 2000 motion picture
21、archive preservation format profile, as defined below. 4) Motion Picture Archive Access Format. The brand mpaa indicates the Motion JPEG 2000 motion picture archive access format profile, as defined below. 2.2) New clauses A.3 and A.4 Add the following clauses: A.3 Motion JPEG 2000 motion picture ar
22、chive preservation format profile For the preservation of motion picture content, the following profile is defined: 1) At least a single video track, using only JPEG 2000 visual samples is present. 2) Audio tracks may be present, as specified in Table A.1. 3) If more than one video track (e.g., diff
23、erent international versions or scenes) or more than one group of multi-channel audio tracks are present, the tracks shall be distinguished and selected by the alternate_group field. In addition, Edit Boxes (edts) and Edit List Boxes (elst) are permitted in order to create compositions of the differ
24、ent tracks. 4) The image codestream profile shall have Rsiz=7 (as specified in ITU-T T.800 | ISO/IEC 15444-1, clause A.10). 5) All color spaces are allowed, as long as they can be described with the metadata in the Colour Specification Box (colr) (as specified in ITU-T T.800 | ISO/IEC 15444-1, Annex
25、 I). 6) There is no restriction on frame rates. 7) The file shall be self-contained; no data references are used, and therefore all media data shall be contained within the single file. 8) The presentation shall be described by a single Movie Box (moov) only, i.e., fragments are disallowed. ISO/IEC
26、15444-3:2007/Amd.1:2010 (E) 2 Rec. ITU-T T.802 (2005)/Amd.1 (04/2010) 9) The media data in the Media Data Box(es) shall be placed within the box(es) in temporal order. 10) If more than one track is present, the media data for the tracks shall be interleaved, with a granularity no greater than the gr
27、eater of (a) the duration of a single sample (in file format terms) or (b) one second. 11) The transformation matrices used are restricted to uniform scaling and rotation by multiples of 90. Table A.1 Audio format specification for archive preservation format Supported data format raw (optional MPEG
28、-4 SLS). Supported sample rates Each Motion JPEG 2000 decoder shall support sample rates of 48 kHz, 44.1 kHz, 32 kHz and 96 kHz (as recommended in 2). A Motion JPEG 2000 encoder can use any desired sample rate. However, without any further agreements outside the scope of this Recommendation | Intern
29、ational Standard, correct decoding can be assumed only if the values recommended above are being used. Supported word lengths Each Motion JPEG 2000 decoder shall be able to correctly decode word lengths of 16 and 24 bits. A Motion JPEG 2000 encoder can use any desired word length. However, without a
30、ny further agreements outside the scope of this Recommendation | International Standard, correct decoding can be assumed only if a word length of 16 or 24 bits is being used. Channel format Discrete (i.e., no matrix encoding). Audio data shall be stored in a lossless manner. For this purpose the raw
31、 audio format shall be used. All audio channels shall be organized as discrete channels. As an option, audio data can also be represented as MPEG-4 Scalable Lossless Coding (SLS) specified in ISO/IEC 14496-3 as a compressed but lossless audio format. Metadata should be stored together with image and
32、 other media data in the same file. Metadata can consist of any combination of structural, descriptive and historical metadata. In all cases, there should be a minimum set of structural metadata stored. For image data this should consist of all information relevant to the employed JPEG 2000 encoding
33、 parameters and contain at least image size, frame rate, colour space, sub-sampling information, number and meaning of components and bit depth. For audio data this should consist at least of bit depth, sample rate, number and meaning of audio channels for each multi-channel audio representation and
34、 audio encoding standard. Descriptive and historical metadata should be stored in an XML 9 representation. A.4 Motion JPEG 2000 motion picture archive access format profile The profile optimized for access to and exchange of archived motion picture content has the following characteristics: 1) At le
35、ast a single video track, using only JPEG 2000 visual samples, shall be present. 2) Audio tracks may be present, as specified in Table A.2. 3) If more than one video track (e.g., different international versions or scenes) or more than one group of multi-channel audio tracks are present, the tracks
36、shall be distinguished and selected by the alternate_group field. In addition, Edit Boxes (edts) and Edit List Boxes (elst) are permitted in order to create compositions of the different tracks. 4) The image codestream profile shall have Rsiz=5 or Rsiz=6 (as specified in ITU-T T.800 | ISO/IEC 15444-
37、1, clause A.10). 5) The XYZ color space as defined in ISO/IEC 26428-1 shall be used and signalled in the Colour Specification Box (colr) (as specified in ITU-T T.800 | ISO/IEC 15444-1, Annex I). 6) There is no restriction on frame rates. If distribution to digital cinema is intended, then frame rate
38、s of 24 frames per second (fps) or 48 frames per second (fps) are recommended. 7) The file shall be self-contained; no data references are used, and therefore all media data shall be contained within the single file. 8) The presentation shall be described by a single Movie Box (moov) only, i.e., fra
39、gments are disallowed. 9) The media data in the Media Data Box(es) is placed within the box(es) in temporal order. 10) If more than one track is present, the media data for the tracks is interleaved, with a granularity no greater than the greater of (a) the duration of a single sample (in file forma
40、t terms) or (b) one second. 11) The transformation matrices used are restricted to uniform scaling and rotation by multiples of 90. ISO/IEC 15444-3:2007/Amd.1:2010 (E) Rec. ITU-T T.802 (2005)/Amd.1 (04/2010) 3 Table A.2 Audio format specification for archive access format Supported data format raw (
41、optional MPEG-4 SLS). Supported sample rates Either 48 kHz or 96 kHz. Supported word lengths Either 16 bits or 24 bits. Channel format Discrete (i.e., no matrix encoding), a maximum of 16 channels per multi-channel representation. Audio data shall be stored in a lossless manner. For this purpose the
42、 raw audio format shall be used. All audio channels shall be organized as discrete channels. As an option, audio data can also be represented as MPEG-4 Scalable Lossless Coding (SLS) specified in ISO/IEC 14496-3 as a compressed but lossless audio format. NOTE Metadata should be stored together with
43、image and other media data in the same file. Metadata can consist of any combination of structural, descriptive and historical metadata. In all cases there should be a minimum set of structural metadata stored. For image data this should consist of all information relevant to the employed JPEG 2000
44、encoding parameters and contain at least image size, frame rate, colour space, sub-sampling information, number and meaning of components and bit depth. For audio data this should consist at least of bit depth, sample rate, number and meaning of audio channels for each multi-channel audio track and
45、audio encoding standard. Descriptive and historical metadata should be stored in an XML 9 representation. 3) Annex B Add the following clause: B.4 Digital cinema archives In this section practical guidelines for the use and application of motion picture archive formats are given. In the following pa
46、ragraphs procedures are described that are meant to help in creating Archive Package files and how to use them to disseminate archived cinematic content to end users and to exchange archived materials between two or more archiving institutions. Implementations should be strict when writing, and tole
47、rant when reading the described formats. B.4.1 Ingesting into cinematic archives Several ways exist to convert cinematic content to the motion picture archive formats. The content may come directly from various stages of an uncompressed digital production process or it can be a compressed digital di
48、stribution format, e.g., a Digital Cinema Package (DCP) 10. It is also possible to ingest images originating from scanned film material as well as access copies that were created through transferring original film images to some other type of analogue or digital media, e.g., analogue or digital vide
49、o tapes, digital versatile disk (DVD), etc. a) Ingesting uncompressed digitally produced material: Digitally produced material includes images that were recorded with an electronic camera and did not undergo any further processing, as well as the results of different processing steps during post-production to the final cinematic product. This also includes scanned films that were subject of a digital restoration process. Common formats for this type of imagery are DPX 3, TIFF 4
