[mythtv] DVB Features (Subtitles & Interactive)

[Paul Wheeler]

I can ry and give you a hand, though as mentioned before I dont know
much about how myth works. What sort of areas would you need help on?
Paul


On Wed, 8 Dec 2004 15:25:21 +0000, David Matthews <dm at prolingua.co.uk> wrote:
> On Wednesday, Dec 8, 2004, at 12:00 Europe/London,
> mythtv-dev-request at mythtv.org wrote:
> > Date: Wed, 8 Dec 2004 11:32:25 +0000
> > From: Paul Wheeler <paulrwheeler at gmail.com>
> > Subject: [mythtv] DVB Features (Subtitles & Interactive)
> > To: mythtv-dev at mythtv.org
> > Message-ID: <2bfaa54f041208033268c4227 at mail.gmail.com>
> > Content-Type: text/plain; charset=US-ASCII
> 
> 
> >
> > Hello all,
> >
> > I have two questions about the state of DVB in Myth, I am based in the
> > UK.
> >
> > Interactive
> > ======
> >
> > I dont know if this is a uk only thing as havent heard it mentioned at
> > all on the mailing lists. Can  Myth handle 'going interactive' an
> > example is the BBCi service. From what i can tell from scan etc this
> > has its own PID with the information. Again what is the state with
> > this, have people looked at it in the past and turned it away for some
> > reason (what was that reason). In interactive you get a menu and can
> > select different streams to watch. Does anyone know if this is a
> > hardware issue?
> 
> It seemed to me that the lack of interactive and text services was the
> only drawback with Myth when compared with a set-top box.  Since no one
> else seems to be working on this I've been looking at it with a view to
> providing something which can be used in Myth as well as other
> applications.  In the UK interactive data is encoded in MHEG 5, a
> programming language sort of half way between HTML and Java.  Most
> other countries seem to be going for MHP which is Java based.  Both
> MHEG and MHP are transmitted using DSM-CC and there's a program called
> dvbdata which will record the streams.
> 
> I've got to the stage where I can display text and graphics and simple
> interactions work using object carousels recorded with dvbdata.  To get
> something working quickly I've been writing an application in Visual
> C++ on Windows.  It's been a long time since I wrote much X-Windows
> code so that was the best way to start.  The intention was always to
> port it Linux so there's very little that is specific to Windows.  I've
> more or less reached the point where it will need to be ported since I
> need to be able to control the tuner directly from the application.
> It's certainly not ready for release yet and any help with it would be
> appreciated.
> 
> David.
> 
> 
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