Encoding and Packaging Overview
Creating content for the JMP 9600 is done in three stages: encoding, wrapping and packaging. The Extron JPEG 200 Encoder Software performs these tasks automatically and internally (see figure 78). This process is provided for reference only.
JPEG 2000 Encoding Software
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| Encoding |
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| Wrapping |
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| JPEG 2000 |
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| MXF Wrap |
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Image | Image | ... | Image |
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| Compressor |
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| J2C | J2C | ... | J2C |
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Frame | Frame |
| Frame |
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| MXF Wrap |
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Packaging
DCP
Packaging
Composite
Playlist
v.mxf
a.mxf
Packing
List
Asset
Map
Figure 78. JPEG 2000 Encoding Software
•Encoding — Each frame of source video is compressed by passing the raw pixel data through a JPEG 2000 compressor. The compressor creates a stream of
The source audio is encoded using pulse code modulation (PCM).
•Wrapping — The individual compressed video frames are combined into a single track file using the Material Exchange Format (MXF). The audio is converted into a separate MXF track file.
NOTE: The compressed audio and video data are maintained in separate MXF files. 
•Packaging — Additional control files, describing the format of and relationship between the audio and video files are generated. The resulting files are collectively known as a Digital Cinema Package (DCP) as described in the DCI specification.
Video track files
A video track file is the smallest unit of video in the system. It is an MXF container that has all the compressed video data and associated
The JMP 9600 supports
Audio track files
An audio track file is the smallest unit of audio in the system. It is an MXF container that has all the
The JMP 9600 supports
Reels
In the movie industry, it is a common practice to split a feature onto several film reels for distribution. This concept is supported digitally by splitting a feature into several separate files. In the digital realm, a reel is a track file (see above) that contains either video content or audio content.
JMP 9600 Media Player • Detailed System Interaction | 97 |
