[mpeg2] Re: Only _one_ TS recording possible

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

mocm@metzlerbros.de wrote:
> 
> Klaus Schmidinger writes:
>  > After the "One line disturbance in picture" has been solved by using
>  > a 2.4.18 kernel I'm now trying to solve the (still persisting) problem
>  > that only _one_ TS recording is possible - every following TS recording
>  > shows heavy artefacts, and at some point there's no recording possible
>  > at all any more.
>  >
>  > Here's a recipe how this can be reproduced:
>  >
>  >  insmod kfir.o vidinput=0 vidrate=3000000 streamtype=4
>  >
>  >  cat /dev/video > file1.ts    (Ctrl-C after some 10 seconds)
>  >
>  >  cat /dev/video > file2.ts    (Ctrl-C after some 10 seconds)
>  >
>  >  rmmod kfir
>  >
>  >  insmod kfir.o vidinput=0 vidrate=3000000 streamtype=4
>  >
>  >  cat /dev/video > file3.ts    (Ctrl-C after some 10 seconds)
>  >
>  > After this you have three TS files. Convert them to any format you
>  > can replay and watch the results. 'file1' is ok, while 'file2' shows
>  > artefacts. 'file3' is ok again, as is every first recording after
>  > the driver has been freshly loaded.
>  >
>  > If I do the same with the default setting for 'streamtype' (which
>  > produces a Program Stream), every recording is ok. So I would assume
>  > that something doesn't get set or reset correctly in case of TS.
>  >
> 
> I guess something isn't reset properly. AFAIK, There hasn't been much testing
> with TS on kfir. We don't have a kfir installed right now, so I can't
> test it myself, but try looking at the init routines in the driver and
> see what is done in the the open and close/release functions. There
> probably is something set for PS on default in the later.
> 
> Marcus

I have poked around at several places in  kfir.c, but nothing I did helped
in any way.

Would it help if I sent you an MPEG encoder card for testing this?
I have two cards here, so I could spare one for a while.

Klaus
-- 
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Klaus Schmidinger                       Phone: +49-8635-6989-10
CadSoft Computer GmbH                   Fax:   +49-8635-6989-40
Hofmark 2                               Email:   kls@cadsoft.de
D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de
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