1、 Table of Contents 1 Scope 3 2 Normative References 3 3 Introduction . 3 4 Sampling Constraints 3 5 JPEG 2000 Codec Constraints . 4 6 MXF Mapping Constraints. 4 6.1 KLV Coding Constraints 4 6.1.1 Essence Element Key 4 6.2 UL Constraints for D-Cinema 4 6.2.1 Essence Container UL. 4 6.2.2 Picture Esse
2、nce Compression UL . 5 6.3 Application Issues . 5 6.4 Essence Descriptors . 5 6.4.1 RGBA Picture Essence Descriptor 5 6.4.2 JPEG 2000 Picture Sub Descriptor . 6 Annex A Bibliography (Informative) 8 Page 1 of 8 pages SMPTE 429-4-2006 SMPTE STANDARD D-Cinema Packaging MXF JPEG 2000 Application Copyrig
3、ht 2006 by THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 3 Barker Avenue, White Plains, NY 10601 (914) 761-1100 Approved October 3, 2006 SMPTE 429-4-2006 Page 2 of 8 pages Foreword SMPTE (the Society of Motion Picture and Television Engineers) is an internationally-recognized standards deve
4、loping organization. Headquartered and incorporated in the United States of America, SMPTE has members in over 80 countries on six continents. SMPTEs Engineering Documents, including Standards, Recommended Practices and Engineering Guidelines, are prepared by SMPTEs Technology Committees. Participat
5、ion in these Committees is open to all with a bona fide interest in their work. SMPTE cooperates closely with other standards-developing organizations, including ISO, IEC and ITU. SMPTE Engineering Documents are drafted in accordance with the rules given in Part XIII of its Administrative Practices.
6、 This SMPTE document was prepared by the Technology Committee DC28 on Digital Cinema Technology in coordination with the Technology Committee W25 on Metadata and Wrappers. Introduction SMPTE 422M defines the mapping of any compliant JPEG2000 codestream into the MXF generic container and defines Keys
7、, ULs and Essence Descriptor definitions. This document further defines the MXF mapping for Digital Cinema application. SMPTE 429-4-2006 Page 3 of 8 pages 1 Scope SMPTE 422M defines the mapping of any compliant JPEG 2000 codestream into the MXF generic container and provides Keys, ULs and essence de
8、scriptor definitions. This standard further defines the MXF mapping details and constraints for application within D-Cinema. 2 Normative References The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, th
9、e editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standards indicated below. SMPTE 377M-2004, Television Material Exchange Format (MXF) File
10、 Format Specification SMPTE 422M-2006, Material Exchange Format (MXF) Mapping JPEG 2000 Codestreams into the MXF Generic Container SMPTE 428-1-2006, D-Cinema Distribution Master Image Characteristics SMPTE 429-3-2006, D-Cinema Packaging Sound and Picture Track File ISO/IEC 15444-1:2004, Information
11、Technology JPEG 2000 Image Coding System: Core Coding System ISO/IEC 15444-1:2004/Amd 1:2006, Profiles for Digital Cinema Applications 3 Introduction The MXF Generic Container (GC) is fully described in SMPTE 379M. SMPTE 422M specifies the mapping of JPEG 2000 codestreams as a Picture Element that m
12、ay be used in the Picture Item of the MXF Generic Container. ISO-IEC 15444-1 Amd 1 specifies the JPEG 2000 profiles for use in D-Cinema applications. This standard specifies the mapping of D-Cinema profiles of JPEG 2000 coded pictures into the MXF Generic Container. Glossaries of acronyms, terms and
13、 data types used by the Material Exchange Format (MXF) are defined in SMPTE 377M and SMPTE 379M. Glossaries of definitions, abbreviations and symbols used by JPEG 2000 are defined in ISO-IEC 15444-1. 3.1 Acronyms (Informative) Some of the acronyms used in this document are listed here for informatio
14、n: DCDM: Digital Cinema Digital Master KAG: KLV Alignment Grid KLV: Key Length Value UL: Universal Label 4 Sampling Constraints The source picture sampling shall comply with SMPTE 428-1. SMPTE 429-4-2006 Page 4 of 8 pages 5 JPEG 2000 Codestream Restrictions The JPEG 2000 codestreams shall be restric
15、ted according to ISO-IEC 15444-1 Amd 1. This amendment defines two profiles for D-Cinema usage referred to in this standard as 2K and 4K. 6 MXF Mapping Constraints The D-Cinema application shall use only frame-based wrapping as defined in SMPTE 422M. There shall only be one picture essence track in
16、the MXF file as defined in SMPTE 429-3. 6.1 KLV Coding Constraints The KLV coding structure is defined in SMPTE 422M section 5. This section defines specific values for the D-Cinema application. 6.1.1 Essence Element Key The Essence Element Key is defined in SMPTE 422M Table 1. The specific values f
17、or the D-Cinema application shall be as defined in Table 1 below. Table 1 Specification of the D-Cinema Constrained JPEG 2000 Picture Element Key Value Byte No. Description Value (hex) Meaning 113 See SMPTE 422M See SMPTE 422M As defined in SMPTE 422M 14 Essence Element Count 01h Count of Picture El
18、ements in the Picture item 15 Essence Element Type 08h JPEG 2000 Frame-wrapped Picture Element 16 Essence Element Number 01h The Number (used as an Index) of this Picture Element in the Picture Item 6.2 UL Constraints 6.2.1 Essence Container UL The Essence Container UL is defined in SMPTE 422M Table
19、 2. The specific values for the D-Cinema application shall be as defined in Table 2. Table 2 Specification of the Essence Container Label Byte No. Description Value (hex) Meaning 1-14 See SMPTE 422M See SMPTE 422M As defined in SMPTE 422M 15 Content Kind 01h Frame-wrapped Picture Element 16 Reserved
20、 00h SMPTE 429-4-2006 Page 5 of 8 pages 6.2.2 Picture Essence Compression UL The Picture Essence Compression UL is defined in SMPTE 422M Table 3. The specific values for the D-Cinema application shall be as defined in Table 3. Table 3 Specification of the Picture Essence Compression Label Byte No. D
21、escription Value (hex) Meaning 1-15 See SMPTE 422M See SMPTE 422M As defined in SMPTE 422M 16 JPEG 2000 Codestream Restrictions 03h 04h Identifies codestream restrictions for the 2K D-Cinema profile. Identifies codestream restrictions for the 4K D-Cinema profile 6.3 Application Issues SMPTE 429-3 de
22、fines the Operational Pattern and the use of the KAG , the KLV Fill and Index Tables for D-Cinema applications. 6.4 Essence Descriptors This section gives guidance in the use of MXF descriptors for use with this application specification. MXF files conforming to this specification shall use the RGBA
23、 Picture Essence Descriptor defined in SMPTE 377M together with the JPEG 2000 Picture Sub Descriptor defined in SMPTE 422M. The identification of the picture components is provided through the values of the PixelLayout Item of the RGBA Picture Essence Descriptor as defined in SMPTE 377M Annex E2.46.
24、 The DCDM color components X, Y and Z shall be coded respectively using the hexadecimal code values D8h, D9h and DAh. NOTE These values represent the ISO 7-bit character codes for the letters: X, Y and Z with the most significant bit of each byte set to 1. This distinguishes the DCDM color component
25、s from the X, Y and Z character values already defined in SMPTE 377M Annex E 2.46. Other picture essence sub-descriptors may be added to provide additional description of D-Cinema pictures. 6.4.1 RGBA Picture Essence Descriptor (Informative) Table 4 below illustrates the RGBA Picture Essence Descrip
26、tor fields that should be used in D-Cinema applications. For simplicity and readability, not all columns defined in SMPTE 377M are shown in the table. Designers should note that the values given here are for guidance only and should not be used verbatim. NOTE The RGBA Picture Essence Descriptor incl
27、udes all the properties from the File Descriptor, the Generic Picture Essence Descriptor and the RGBA Picture Essence Descriptor as defined in SMPTE 377M. Those properties that are for MXF management or are optional are not shown in table 4 below except where useful benefit is gained. In particular,
28、 Table 4 does not define the set Key value nor its Length field, as these are defined in SMPTE 377M. For clarity, not all columns of the descriptor are shown in Table 4, particularly the Local Tag, UL Designator, Req and Meaning columns. Please refer to SMPTE 377M Annex D for these values. SMPTE 429
29、-4-2006 Page 6 of 8 pages Table 4 Specification of Values for the D-Cinema application RGBA Picture Essence Descriptor Item Name Type Len 2K Values 4K Values Linked Track ID UInt32 4 Sample Rate Rational 8 24,1 48,1 Essence Container UL 16 See Table 2 Picture Essence Coding UL 16 See Table 3 Frame l
30、ayout UInt8 1 0 Stored Width UInt32 4 2048. Lower values may be used where permitted by the appropriate DCDM operational level 4096. Lower values may be used where permitted by the appropriate DCDM operational level Stored Height UInt32 4 1080. Lower values may be used where permitted by the appropr
31、iate DCDM operational level 2160. Lower values may be used where permitted by the appropriate DCDM operational level Aspect Ratio Rational 8 256,135 by default. Other values are used where the pixel array does not fully occupy the DCDM operational level. Video Line Map Array of Int32 16 2, 4, 0, 0 (
32、each value is Int32) Gamma UL 16 See SMPTE RP 224 (D-Cinema specific value) Component Max Ref UInt32 4 4095 Component Min Ref UInt32 4 0 Pixel Layout 8-byte array 8 D8.0C.D9.0C.DA.0C.00.00 in hexadecimal code Sub Descriptors 8+16n 24 1, 16, UID (JPEG 2000 Picture Sub Descriptor Instance UID Value).
33、6.4.2 JPEG 2000 Picture Sub Descriptor (Informative) Table 5 provides additional guidance for the values of the required individual properties used in the JPEG2000 Picture Sub Descriptor. Designers should note that the values given here are for guidance only and should not be used verbatim. For simp
34、licity and readability, not all columns defined in SMPTE 422M are shown in Table 5. Neither are the rows that define the Key and Length shown. Please refer to SMPTE 422M for the full description of this table. SMPTE 429-4-2006 Page 7 of 8 pages Table 5 Specification of Values for the D-Cinema applic
35、ation JPEG 2000 Picture Sub Descriptor Element Name Type Len 2K Values 4K Values Rsiz UInt16 2 03h (2K D-Cinema application) 04h (4K D-Cinema application) Xsiz UInt32 4 2048. Lower values may be used where permitted by the appropriate DCDM operational level 4096. Lower values may be used where permi
36、tted by the appropriate DCDM operational level. Ysiz UInt32 4 1080. Lower values may be used where permitted by the appropriate DCDM operational level 2160. Lower values may be used where permitted by the appropriate DCDM operational level. XOsiz UInt32 4 0 YOsiz UInt32 4 0 XTsiz UInt32 4 2048 or le
37、ss 4096 or less YTsiz UInt32 4 1080 or less 2160 or less XTOsiz UInt32 4 0 YTOsiz UInt32 4 0 Csiz UInt32 4 3 Picture Component Sizing J2K Component SizingArray 8+3n 3,3,11,1,1,11,1,1,11,1,1 NOTE The use of the letters “X” and “Y” in the table above refer to the horizontal and vertical image size par
38、ameters and have no relationship with the use of the same letter values used for the XYZ color space. SMPTE 429-4-2006 Page 8 of 8 pages Annex A (Informative) Bibliography ANSI/SMPTE 298M-1997, Television Universal Labels for Unique Identification of Digital Data SMPTE 379M-2004, Television Material Exchange Format (MXF) MXF Generic Container SMPTE 429-7-2006, D-Cinema Packaging Composition Playlist SMPTE 429-8, D-Cinema Packaging Packing List SMPTE RP 224, SMPTE Labels Registry ISO/IEC 646:1991 - ISO 7-Bit Coded Character Set
