1、 IEC/TS 62592 Edition 2.0 2012-07 TECHNICAL SPECIFICATION Encoding guidelines for portable multimedia CE products using MP4 file format with AVC video codec and AAC audio codec IEC/TS 62592:2012(E) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC, Geneva, Switzerland All rights reserved. U
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9、es for portable multimedia CE products using MP4 file format with AVC video codec and AAC audio codec INTERNATIONAL ELECTROTECHNICAL COMMISSION XD ICS 33.160.01 PRICE CODE ISBN 978-2-83220-220-3 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtaine
10、d this publication from an authorized distributor. 2 TS 62592 IEC:2012(E) CONTENTS FOREWORD . 6 0 Introduction 8 0.1 MP4 file format 8 0.2 Issues to be considered in implementation on portable CE devices . 8 0.3 Encoding rules for open system and application 9 1 Scope . 10 2 Normative references . 1
11、0 3 Terms, definitions, abbreviations and conventions 11 3.1 Terms and definitions 11 3.2 Abbreviations 13 3.3 Conventions 13 3.3.1 Method of presenting box definition . 13 3.3.2 Unit prefixes 14 3.3.3 Numeric representation . 14 3.3.4 Character data . 14 3.3.5 Nominal time length . 14 3.3.6 Reserve
12、d fields and values 14 4 Design rules . 14 4.1 General . 14 4.2 File structure . 15 4.2.1 General . 15 4.2.2 Movie structure 16 4.2.3 Fragmented movie structure 17 4.3 Box order 18 4.4 Operational rules for boxes defined in ISO file format standards 20 4.4.1 General . 20 4.4.2 Size fields 20 4.4.3 V
13、ersions and flags . 20 4.4.4 File identification . 20 4.4.5 File extension 21 4.4.6 Handler reference types 21 4.4.7 Movie header box 22 4.4.8 Track header box . 22 4.4.9 Media header box 22 4.4.10 Sample size box 22 4.4.11 Time to sample boxes 22 4.4.12 Sample entries 22 4.4.13 Movie fragment boxes
14、 . 22 4.4.14 Track fragment random access boxes Version fields . 23 4.4.15 Edit list entries. 23 4.4.16 Template fields used . 23 4.5 Additional definitions . 24 4.5.1 Private extension box definitions . 24 4.5.2 Profile configuration. 30 4.5.3 Function flags 30 TS 62592 IEC:2012(E) 3 4.5.4 Codec sp
15、ecific information . 31 4.5.5 Attribute flags 33 4.6 Operational rules for tracks . 33 4.6.1 General . 33 4.6.2 Main audio track 34 4.6.3 Main video track 35 4.6.4 Thumbnail picture track . 36 4.7 Operational rules for media data . 38 4.7.1 MPEG-4 AAC elementary stream . 38 4.7.2 AVC video elementar
16、y stream 41 4.7.3 JPEG image sequence for thumbnail pictures 66 4.8 Logical structure of media data 67 4.8.1 General . 67 4.8.2 Interleaving of main audio and video . 67 4.8.3 Arrangement of data chunks 68 4.8.4 Placement of thumbnail picture 68 4.8.5 Media data structure in movie fragment . 68 4.8.
17、6 Exception for logical structure of media data . 68 4.9 Presentation arrangement for tracks 68 4.9.1 Alternate group support . 68 4.9.2 Edit list support . 69 4.10 Metadata . 70 4.10.1 Metadata types 70 4.10.2 Metadata types definition . 71 4.11 Pixel aspect ratios . 74 5 PCE AV classes . 76 5.1 Cl
18、ass . 76 5.2 Class PT . 76 5.2.1 General . 76 5.2.2 Level 1 77 5.2.3 Level 2 77 5.2.4 Level 3 77 5.3 Class MB . 77 5.3.1 General . 77 5.3.2 Level 1 78 5.3.3 Level 2 78 5.3.4 Level 3 79 5.3.5 Level 4 79 5.4 Class SD . 79 5.5 Class network SD 80 5.6 Class HD . 81 5.6.1 General . 81 5.6.2 Level 1 82 5.
19、6.3 Level 2 82 5.7 Class network HD 82 5.7.1 General . 82 5.7.2 Level 1 83 5.7.3 Level 2 83 5.7.4 Level 3 84 4 TS 62592 IEC:2012(E) 6 Definitions for other files . 84 Annex A (normative) Operation rules for compliant products 85 Annex B (normative) Capabilities required for compliant products 89 Ann
20、ex C (informative) Recommended recording modes . 91 Annex D (normative) Operation rules for rotated video file . 96 Bibliography 98 Figure 1 Example of a simple interchange file 15 Figure 2 Examples of movies . 17 Figure 3 Example of a fragmented movie . 18 Figure 4 Example of AAC bitstream . 38 Fig
21、ure 5 Example of a closed GOP 52 Figure 6 Example of an open GOP . 52 Figure 7 Reference structure of a reference B-picture 60 Figure 8 Reference structure of a non-reference B-picture . 61 Figure 9 Example of a closed GOP 61 Figure 10 Example of an open GOP . 62 Table 1 Supported track types . 16 T
22、able 2 Supported stream and data . 16 Table 3 Box types, structure, and cross-reference . 19 Table 4 brand identifier 21 Table 5 handler_types . 22 Table 6 Common portion of the audio attribute flags 26 Table 7 Common portion of the video attribute flags. 27 Table 8 encoding_type . 29 Table 9 Functi
23、on flags 30 Table 10 Data form type . 31 Table 11 Data form type . 32 Table 12 Codec specific portion of audio attribute flags . 33 Table 13 Codec specific portion of video attribute flags 33 Table 14 The values of pic_struct and ct_type . 54 Table 15 Allowed values of frame_mbs_only_flag, pic_width
24、_in_mbs_minus1 and pic_height_in_map_units_minus1 . 63 Table 16 Allowed values of frame cropping related fields . 63 Table 17 data_type_ID . 71 Table 18 Presentation types. 72 Table 19 Track attribute flags. 73 Table 20 Usage of the metadata 74 Table 21 Resolution values in visual sample entry . 75
25、Table 22 spacing values in pixel_aspect_ratio . 75 Table C.1 Recommended recording modes for Class PT 91 Table C.2 Recommended recording modes for Class MB . 92 TS 62592 IEC:2012(E) 5 Table C.3 Recommended recording modes for Class SD . 92 Table C.4 Parameters for progressive video 25fps and 29.97fp
26、s 93 Table C.5 Recommended recording modes for Class network SD 93 Table C.6 Recommended recording modes for Class HD . 94 Table C.7 Recommended recording modes for Class network HD 95 Table D.1 Width and height in the track header box . 97 6 TS 62592 IEC:2012(E) INTERNATIONAL ELECTROTECHNICAL COMMI
27、SSION _ ENCODING GUIDELINES FOR PORTABLE MULTIMEDIA CE PRODUCTS USING MP4 FILE FORMAT WITH AVC VIDEO CODEC AND AAC AUDIO CODEC FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC Nati
28、onal Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publi
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37、awn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. The main task of IEC technical committees is to prepare International Standards. In exceptional circumstances
38、, a technical committee may propose the publication of a Technical Specification when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts, or the subject is still under technical development or where, for any other reason, there is the f
39、uture but no immediate possibility of an agreement on an International Standard. Technical Specifications are subject to review within three years of publication to decide whether they can be transformed into International Standards. This Technical Specification cancels and replaces the first editio
40、n published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) added 23,976 fps to all classes; TS 62592 IEC:2012(E) 7 b) added new class (class network SD); c) added some metadata for CE
41、content; d) inserted some editorial improvements and clarifications. IEC/TS 62592, which is a Technical Specification, has been prepared by technical area 6: Storage media, data structures, equipment and systems, of IEC technical committee 100: Audio, video and multimedia systems and equipment. The
42、text of this Technical Specification is based on the following documents: Enquiry draft Report on voting 100/1926/DTS 100/1970/RVC Full information on the voting for the approval of this Technical Specification can be found in the report on voting indicated in the above table. This publication has b
43、een drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the
44、 publication will be transformed into an International standard, reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. 8 TS 62592 IEC:2012(E) 0 Introduction 0.1 MP4 file format ISO base media file format, ISO/IEC 144
45、96-12, has been developed by ISO/IEC JTC 1/SC 29/WG 11 and WG1 as a common base media file format of audio, video and image applications. It provides a file format to contain timed media information for a presentation in a flexible, extensible format. The extensions to support specific codecs and sy
46、stems are specified as the series of standard ISO/IEC 14496. The MP4 file format (MPEG-4 file format), ISO/IEC 14496-14, is an extension to support MPEG-4 systems in ISO base media file format. The extension to support Advanced Video Coding (AVC), ISO/IEC 14496-10 and ITU-T H.264 1 , is standardized
47、 as AVC file format, ISO/IEC 14496-15. In this Technical Specification, the family of ISO base media file format is referred to as MP4 file format, which is the name widely used in the industry. The MP4 file format is designed very flexibly so that the series of the standard can be applied to variou
48、s kinds of applications and can bring the maximum performances for the applications. MP4 file format is adopted by various Consumer Electronics (CE) devices, e.g. broadcasting receivers, disc recorders / players, AV content distribution, portable AV recorders / players, and so on. In the CE audio, v
49、ideo and multimedia applications, MP4 file format with Advanced Video Coding (AVC), (ISO/IEC 14496-10 and ITU-T H.264) and Advanced Audio Coding (AAC), (ISO/IEC 13818-3 and ISO/IEC 14496-3), is employed most popularly. AVC (ISO/IEC 14496-10 and ITU-T H.264) specifies profiles and levels to ensure interoperability of decoding procedure of a video elementary stream, which fits various levels of application. AVC, ISO/IEC 14496-10
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