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Appendix B Creating a Content Package B-11
Note – For video formatted as MPEG-2 Transport Streams, the CM automatically
generates index files for titles that contain trick play streams, at the point when
content is loaded onto the server. For other formats, you must generate your own
index files.
The index file consists of a sequence of splice points. Each splice point is of the
following format:
Each entry in the index file represents a single splice point. For forward-playing
streams, the first entry must be:
For forward-playing streams, the last pair must be:
For reverse-playing streams, the first entry must be:
For reverse-playing streams, the last pair must be:
B.5.1 Normal Play Time
The value in the Normal Play Time (NPT) field, expressed in microseconds, specifies
the time offset into the program. It is a 64-bit integer value.
The following are requirements and characteristics of NPT in an index file:
■ The total NPT should be the same in all index files in a content package.
■ NPTs for a forward-playing stream must monotonically increase, from beginning
to end of the index file.
< normal play time > < file offset >
0 0
< total NPT > < bit stream file size >
< total NPT > 0
0 < bit stream file size >