[opendtv] Re: A/53C PID requirements for Jan 1, 2005
- From: William Smith <wsmith@xxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Tue, 21 Dec 2004 22:15:48 -0500
Ron,
1. What model receivers are having trouble?
2. Did the TVCT get updated with the new informaion and a new version
number?
William
KET
Ron Economos wrote:
>As many of you know, ATSC A/53C has dictated
>that all PID assignments (except for PAT) will be
>numbered equal to or above 0x0030 after January
>1st, 2005.
>
>At the same time, the "program paradigm" for PID
>assignment has been deleted. The "program paradigm"
>is in older versions of A/53, and assigns PID numbers with
>these formulas (where N equals the MPEG-2 Program
>Number).
>
>PMT = 16*N
>PCR = 16*N + 1
>Video = 16*N + 1
>Audio = 16*N + 4
>
>One of the local DTV stations here in the SF Bay Area,
>KGO-DT, has fulfilled the equal to or above 0x0030 PID
>requirement by changing their Program Numbers from 1 and 2
>to 3 and 4 and continuing to use the old "program paradigm".
>This results in PIDs 0x0030, 0x0031, 0x0034, 0x0040, 0x0041
>and 0x0044.
>
>This has caused some receivers to display a black screen
>and no audio when tuned to KGO-DT. No amount of
> re-scanning will resurrect these receivers.
>
>So the question to the group is:
>
>What is the safest way to satisfy the equal to or above 0x0030
>requirement? Since the "program paradigm" has been deleted,
>should MPEG-2 Program Numbers now start at 1 (instead
>of the previously recommended 2)?
>
>Thoughts and experience would be appreciated.
>
>Ron
>
>
>
>
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