Digital Cinema Content Format Information
Revision as of 22:02, 18 February 2012 by FergusCooper (talk | contribs)
Introduction
This page contains some general information about the format of digital cinema content.
Picture
The picture steam is a sequence of JPEG 20000 images, encased in an mxf wrapper. The standard pixel dimensions are:
| Name | Dimensions | Ratio |
|---|---|---|
| Full | 2048 x 1080 | 1.90:1 |
| Scope | 2048 x 858 | 2.39:1 |
| Flat / X-Wide | 1998 x 1080 | 1.85:1 |
| Wide | 1920 x 1080 | 1.78:1 |
Content of any pixel dimensions can be played, however the projector will not perform any scaling; content will be clipped or black bars will be added as necessary.
Sound
The sound stream consists of a single uncompressed pcm file (usually a Windows .wav file) for each audio channel. These, like the picture steam, are encased in an mxf wrapper.
| Configuration | Left | Right | Centre | Sub | Left Surround | Right Surround | Voice Emphasis | Narrative |
|---|---|---|---|---|---|---|---|---|
| Stereo | ✓ | ✓ | ||||||
| 5.1 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
| Hearing / Visually Impaired | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
