[vdr] Re: STILL PICTURES solution

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

Daniel Sáez Domingo wrote:
> 
> Hello Klaus,
> 
>         I have read about the problems with STILL PICTURES in VDR. Most of the
> current DVDs have still pictures when displaying menus and obviously I
> have experienced these problesm.
> 
> I have inspected the code of StillPicture function in dvbdevice.c and I
> have been testing some options.
> First, the safe_write function doesn't function in all cases.
> Then I want the VIDEO_STILLPICTURE ioctl call to work.
> After a hundred of tests I think that there is a problem related to some
> buffer, because I think that Data has the correct data but it is not
> displayed when it has to be displayed.
> I have got some improvement simply adding usleep(250000) before
> VIDEO_STILLPICTURE ioctl call. This has solved some of my problems but
> not in every DVD. If a DVD has two join still frames (menu + submenu),
> the menu is not displayed at the begining. When you press the ok button,
> the menu screen is displayed instead of the submenu, and when you press
> OK, the submenu screen appears and disappears inmediately.
> 
> Because of this I think there is a problem with buffers (I don't know
> where) or perhaps with some thread because the problem is not always
> present, but sometimes (random).
> 
> If you have some idea about these buffers, please, let me know because
> this would improve DVD replaying very much. If you can do some review to
> this StillPicture function I would thank you.

Your subject says something about a "solution" - but I fail to see
where your message would provide one?! "Some improvement" by adding
usleep(250000) IMHO doesn't really qualify as _solution_.

Klaus
-- 
_______________________________________________________________

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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