Digital Cinema System Specification Version 1.3
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Digital Cinema System Specification Version 1.3 Approved 27 June 2018 Digital Cinema Initiatives, LLC, Member Representatives Committee Copyright © 2005-2018 Digital Cinema Initiatives, LLC DCI Digital Cinema System Specification v. 1.3 Page | 1 NOTICE Digital Cinema Initiatives, LLC (DCI) is the author and creator of this specification for the purpose of copyright and other laws in all countries throughout the world. The DCI copyright notice must be included in all reproductions, whether in whole or in part, and may not be deleted or attributed to others. DCI hereby grants to its members and their suppliers a limited license to reproduce this specification for their own use, provided it is not sold. Others should obtain permission to reproduce this specification from Digital Cinema Initiatives, LLC. This document is a specification developed and adopted by Digital Cinema Initiatives, LLC. This document may be revised by DCI. It is intended solely as a guide for companies interested in developing products, which can be compatible with other products, developed using this document. Each DCI member company shall decide independently the extent to which it will utilize, or require adherence to, these specifications. DCI shall not be liable for any exemplary, incidental, proximate or consequential damages or expenses arising from the use of this document. This document defines only one approach to compatibility, and other approaches may be available to the industry. This document is an authorized and approved publication of DCI. Only DCI has the right and authority to revise or change the material contained in this document, and any revisions by any party other than DCI are unauthorized and prohibited. Compliance with this document may require use of one or more features covered by proprietary rights (such as features which are the subject of a patent, patent application, copyright, mask work right or trade secret right). By publication of this document, no position is taken by DCI with respect to the validity or infringement of any patent or other proprietary right. DCI hereby expressly disclaims any liability for infringement of intellectual property rights of others by virtue of the use of this document. DCI has not and does not investigate any notices or allegations of infringement prompted by publication of any DCI document, nor does DCI undertake a duty to advise users or potential users of DCI documents of such notices or allegations. DCI hereby expressly advises all users or potential users of this document to investigate and analyze any potential infringement situation, seek the advice of intellectual property counsel, and, if indicated, obtain a license under any applicable intellectual property right or take the necessary steps to avoid infringement of any intellectual property right. DCI expressly disclaims any intent to promote infringement of any intellectual property right by virtue of the evolution, adoption, or publication of this document. DCI Digital Cinema System Specification v. 1.3 Page | 2 Table of Contents Table of Contents ......................................................................................................................... 3 Table of Figures .......................................................................................................................... 11 Table of Tables ........................................................................................................................... 12 1. OVERVIEW 13 1.1. Introduction .................................................................................................................... 13 1.2. Scope .............................................................................................................................. 13 1.3. Document Language ........................................................................................................ 14 1.4. System Objectives ........................................................................................................... 15 2. SYSTEM OVERVIEW 17 2.1. Functional Framework ..................................................................................................... 17 2.1.1 Major System Concepts ............................................................................................ 20 2.1.1.1. Digital Source Master (DSM) ....................................................................................... 20 2.1.1.2. Composition ................................................................................................................ 20 2.1.1.3. Digital Cinema Distribution Master (DCDM) ............................................................... 20 2.1.1.4. Digital Cinema Package (DCP) ..................................................................................... 20 2.1.1.5. Hierarchical Image Structure ...................................................................................... 21 2.1.1.6. File / Frame-Based System.......................................................................................... 21 2.1.1.7. Store and Forward ...................................................................................................... 21 2.1.1.8. Reels ............................................................................................................................ 22 2.1.1.9. Component Design ..................................................................................................... 22 2.1.1.10. Storage and Media Block ............................................................................................ 22 3. DIGITAL CINEMA DISTRIBUTION MASTER 23 3.1. Overview ........................................................................................................................ 23 3.1.1. Introduction ............................................................................................................. 23 3.1.2. DCDM System Overview ........................................................................................... 23 3.1.3. Major DCDM Concepts .............................................................................................. 23 3.1.4. DCDM Fundamental Requirements ........................................................................... 24 3.1.4.1. Common File Formats ................................................................................................. 24 3.1.4.2. Frame Rates ................................................................................................................ 24 3.1.4.3. Synchronization .......................................................................................................... 24 3.2. Image Specification ......................................................................................................... 24 3.2.1. Image Concepts and Requirements ........................................................................... 24 3.2.2. DCDM Image File Format .......................................................................................... 25 3.2.2.1. Introduction ................................................................................................................ 25 3.2.2.2. File Mapping ............................................................................................................... 25 3.2.2.3. Synchronization .......................................................................................................... 25 3.2.2.4. Image Metadata Required Fields ................................................................................ 25 3.3. Audio Specification .......................................................................................................... 26 3.3.1. Audio Concepts and Requirements ............................................................................ 26 3.3.2. Audio Characteristics ................................................................................................ 26 3.3.3. Channel Labeling and Channel Routing ...................................................................... 26 DCI Digital Cinema System Specification v. 1.3 Page | 3 3.3.4. File Format ............................................................................................................... 27 3.3.4.1. General ........................................................................................................................ 27 3.3.4.2. Synchronization .......................................................................................................... 27 3.4. Text Rendering ................................................................................................................ 27 3.4.1. Text Rendering Concepts and Requirements .............................................................. 27 3.4.2. Subpicture ................................................................................................................ 28 3.4.2.1. Introduction ................................................................................................................ 28 3.4.2.2. File Format .................................................................................................................. 28 3.4.2.3. Rendering Intent ......................................................................................................... 28 3.4.2.4. Frame Rate and Timing ............................................................................................... 28 3.4.2.5. Synchronization .........................................................................................................