DCI Specs - Digital Cinema Initiatives

5.2.2. Packaging Fundamental Requirements ............................................................. 435.2.2.1. Introduction.................................................................................................... 435.2.2.2. Open Standard .............................................................................................. 435.2.2.3. Interoperable ................................................................................................. 445.2.2.4. Scalable......................................................................................................... 445.2.2.5. Supports Essential Business Functions ........................................................ 445.2.2.6. Secure ........................................................................................................... 445.2.2.7. Extensible ...................................................................................................... 445.2.2.8. Synchronization ............................................................................................. 445.2.2.9. Human Readable Metadata........................................................................... 445.2.2.10. Identity ........................................................................................................... 445.2.3. Packaging Concepts............................................................................................ 445.3. Composition .................................................................................................................. 475.3.1. Track File Concepts and Requirements............................................................. 475.3.1.1. Introduction.................................................................................................... 475.3.1.2. Format Information ........................................................................................ 485.3.1.3. Reel ............................................................................................................... 485.3.1.4. Track File Replacement................................................................................. 485.3.1.5. Synchronization ............................................................................................. 485.3.1.6. Splicing .......................................................................................................... 495.3.1.7. Key Epoch ..................................................................................................... 495.3.1.8. Security.......................................................................................................... 495.3.1.9. Integrity and Authentication ........................................................................... 495.3.1.10. Extensibility.................................................................................................... 495.3.1.11. Random Access and Restarts ....................................................................... 495.3.1.12. Simple Essence............................................................................................. 505.3.2. MXF Track File Encryption .................................................................................. 505.3.2.1. Introduction.................................................................................................... 505.3.2.2. Encrypted Track File Constraints .................................................................. 515.3.3. Image Track File ................................................................................................... 515.3.3.1. Introduction.................................................................................................... 515.3.3.2. Frame Boundaries ......................................................................................... 515.3.3.3. Compression ................................................................................................. 515.3.3.4. Metadata........................................................................................................ 515.3.4. Audio Track File ................................................................................................... 515.3.4.1. Introduction.................................................................................................... 515.3.4.2. Frame Boundaries ......................................................................................... 525.3.4.3. Data Packing Format..................................................................................... 525.3.4.4. Metadata........................................................................................................ 525.3.5. Subtitle Track File ................................................................................................ 525.3.5.1. Introduction.................................................................................................... 525.3.5.2. Frame Boundaries ......................................................................................... 525.3.5.3. Timed Text..................................................................................................... 525.3.5.4. Subpicture ..................................................................................................... 525.3.5.5. Metadata........................................................................................................ 525.3.6. Auxiliary Track Files and Extensibility............................................................... 535.4. Composition Playlists................................................................................................... 535.4.1. Introduction .......................................................................................................... 53DCI Digital Cinema System Specification v.1.2 Page 5