[mythtv] Re: TS Timing issues

[Nathan Manzi]

Taylor Jacob wrote:

>As far as 2 more TS mode issues I just fixed these last night:
>  
>
I've been following TS mode DVB in Australia too, your post caught my eye.

>1. Startup Delay - I have removed the SDT scan at the begining of TS playback, 
>it was trying to find a SDT table (DVB SI) and then falling back to a PAT, so
>now it just looks for a PAT and plays the program described there.. Seems to
>startup as fast as PS mode..
>
>2. Mark Andersons av_remove_stream code was removing streams in
>avformatdecoder.cpp so if you were changing channels and the same audio pid
>existed on both channels it would get removed with this code, and never get
>added back since the removal of PIDS was taking place in 2 places, but the
>adding back was only in one..
>  
>
Whee! Nice work there.

I thought that SI scan was causing the delay. Which file(s) should I
look at to remove the scan?
Number 2 sounds relevant to the missing sound issues here too, a few
channels use the same Audio PIDS in Australia, that code would be the
cause. I'll look at avformatdecoder.cpp (unless you've already written a
diff? ;) and try to write something that checks if the PIDS are the
same. Pointers are good. ^_~

>Unfortunatly we don't get paid, so when something comes up in life or work
>usually open source hobbies end up going to the side.. That was the case with
>me for a while.. I appologize, but that won't chang anytime soon.. We don't
>work for fun.. :)
>  
>
William has to realise that this also includes email checking. Have you
looked at the number of posts on mythtv/mythtv-users? ^^;

>You need to get the docs from ISO.. 13818 I believe is the spec.. That explains
>what a PCR it.. Its the Program Clock Reference.. Everything I can recieve in
>North America its in the Video PID but it seems just down under you guys have
>them seperate, so it makes fixing it even more difficult.. You can use dvbsnoop
>to look at the PMT tables and see if the PCR PID is listed differently from the
>Mpeg2 Video PID on the affected channels.. I am 99.9% sure thats the problem
>since I have gotten a few different responses from others in Oz..
>  
>
There is a seperate PCR PID on some channels here, god knows why. If you
manage to figure out how to use that seperate PCR, I'll be wrapped
enough to want to give money to you. ^_^

Thanks for this much needed feedback,
Nathan Manzi.
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