Organisation internationale de normalisation

6.3.3.3what about preceding and trailing bytes?

(TS and FEC) as examples

6.3.3.4how do you tell the difference?

sample-size/(188+prec+trail) = N

6.3.3.5are PMT, PAT, OD etc. also still in-stream?

yes, probably. the sample entry documents the initial OD/PAT/PMT conditions for all samples associated with it. If these change, a new sample entry is needed for the first sample at or after the change. If they are not in the sample entry, then they are dynamic and the stream must be scanned.

6.3.4What is in a sample entry?

6.3.4.10 or more PMTs

6.3.4.20 or 1 PAT

6.3.4.30 or more OD

6.3.4.4indication for whether sample times are exactly PCR times

6.3.4.5Transport offset

there is an issue that this only applies to one sample, and isn’t safe under say editing (or random access). we should warn that this field may need updating after e.g. editing.

6.3.4.6optional boxes for format of preceding and trailing bytes (not defined here)