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> Transport stream inspector
adamp524
post Nov 23 2012, 02:08 AM
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Hi,

I've been trying to use DVBsnoop to analyse a transport stream. What I'd like to do is find out at what time / how regularly the EIT is updated in a DVB transport stream for a particular channel. I don't have any hardware immediately accessable so I've got a local copy of the transport stream file on disk.

Does anyone have an idea how I'd do this? Or maybe any other tools that are useful?

Thanks
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adamp524
post Nov 24 2012, 12:44 AM
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To clarify my post here is some background to my problem:

I need some help trying to decode a DVB transport stream and analyse the EIT data. I have a local DVB transport stream file which is recorded off live TV - so it is a multi-programme transport stream with lots of SI tables in it.

I want to try and find out the timecode of when the actual TS/present event information is updated by looking at the version_number field in its table and monitoring when it changes.

For my example: Need to look at PID: 0x12 - EIT PID identifier in the transport stream table_id = 0x4E - This is the EIT table for actual TS present information Inside this table is the version_number field which is the field that I want to monitor for changes. When it does change (i.e. a new programme starts) I'd like to be able to record the time that this change corresponds to an entry in the TDT so I know when the change occurred in the stream.

So far I've looked at DVBSnoop as a TS Analyser and think it may be possible to use this tool. Does anyone have any idea how I could get this to work?

Thanks
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DrP
post Nov 24 2012, 07:20 AM
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Only very generalised advice. I used a perl script to grab the output of dvbsnoop under linux as it ran to monitor real time when the EIT present / following ticked over.


--------------------
Looking for an alternative to TV Scheduler Pro? Take a look at dvscheduler for Windows or tvheadend for linux.
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