DVB Testing Results (1 Viewer)

[dman_lfc]

I'm about to head out the door so I will test this tonight.

Definitions for others:

Frequency
The Mux frequency of the specific broadcast channel
Bandwidth
is the bandwidth used to broadcast channels on that specific frequency.
i.e Aus - 6Khz, UK - 8Khz, Taiwan - 7Khz typically. Some European countries have a mixture of 7&8.
onID
The Original Network ID, which identifies the broadcaster or network that produced the content (not the network currently broadcasting it, if they are different)
tsID
The Transport Stream ID, which identifies a specific transport stream that the network is broadcasting
sID
The Service ID, which refers to a service within that transport stream

I'll post hopefully some working examples in the UK tonight.

DMAN

 

[bionicdonkey]

i forgot to mention that this is for testing the tuning. the video will open in a seperate activemovie window.

/// <param name="Param1">(DVBT, DVBC)Frequency, (ATSC)PhysicalChannel</param>
/// <param name="Param2">(DVBT)Bandwidth, (DVBC)SymbolRate, (ATSC)Channel</param>
/// <param name="Param3">(DVBT, DVBC)ONID, (ATSC)MinorChannel</param>
/// <param name="Param4">(DVBT, DVBC)TSID</param>
/// <param name="Param5">(DVBT, DVBC)SID</param>

you should be able to use -1 for the last 3 parameters if you don't know them

 

[Anonymous]

Some Informations from my progress on my Delphi DVB-T Source Filter, might be usefull for the future ...

EPG
I figured out that the TIF is very limited with it´s EPG Parsing capabilitys. It parses only the Short Descriptor (the Name of the Program) and only for the next ~4 Hours. Anyway, i´ve written an own EPG Parser Filter that connects between MPEG Demux and TIF and parses the Full EPG Informations. It´s possible to hook an App into it by adding an Callback Interface ...

Channel Switch
That´s something i´m trying to figure out since weeks. A Switch to a Channel on another Frequency takes about 3 Seconds !!! It´s really annoying. With the Stream Buffer Engine enabled, it takes even longer. I tried to get some answers on MSDN, but .. no luck... It seems, a simple Tunerequest using ONID, SID, TSID, Freq and Bandwidth isn't enough. I´ve tried already to put everything i know (all the IComponents and the ILocator Informations), but still no luck ...

Teletext/Subtitles
Still working on that one... might be best to hook it up onto the second Pin of the VMR and display it over the Video...

Audio Stream Selection
Was a really simple implementation. After a Tunerequest has been commited, there is a Notification on the IBroadcastEvent (that your App must implement), You just enumerate through the IComponents and check each Component for ISO_IEC_11172_3_AUDIO, ISO_IEC_13818_3_AUDIO .. and store it´s PID. That PID can be mapped on Pin 3 of the MPEG Demux.

MHP
The most interisting part for me. i´m still searching for the Documents for that. I found one on mhp.org, but that doesn't seem to be enough.

 

[samuel337]

Hey guys

This might seem like a stupid question, but is DVB support in the latest version of MP?

Because someone has edited the MP requirements page to say that it is, so if its not, that needs to be changed. See http://www.maisenbachers.de/dokuw/install:mytv_requirements

Sam

 

[bionicdonkey]

it won't be too far away...hopefully

 

[samuel337]

Thanks, I'll change the wiki page to reflect that.

Sam

 

[bionicdonkey]

http://home.exetel.com.au/bionicdonkey/files/Debug.rar

very early preview, binaries only at this point.

 

[Anonymous]

Hello everyone on the Forums!

My question...

What does the author mean with DVB-T on this page...

http://www.maisenbachers.de/dokuw/install:mytv_requirements?s=tv_card

Does he mean every DVB-T card? Is there a programming interface to acces all of them? Will there be support for the Pinnacle PCTV Sat Digital card? Many people here in germany are using it and I'm planning to buy one. Or isn't there any support for digital sat cards? Is this feature expected to be available in the near future or will it take some time or will this card never be supported?

thx for the answers

c ya
gdp2k

 

[bionicdonkey]

the implementation i am working on will support any card with bda drivers. agree is also working ona little something which will support skysat2 cards(i think). althougn currently there is no working solution for any dtv cards in a release build

 

[samuel337]

I put the "NOT SUPPORTED YET" bit in, and it means exactly that - it isn't supported yet but will be in the near future.

As for which cards are supported, for starters only those will be. Over time however, more and more cards will be supported. It comes down to which cards the developer has. Each card, although the general code will be the same, has slightly different hardware, and therefore will need slight fixes to the code before it will be supported.

The best thing you can do to ensure that the card is supported is to download the test binaries and test them with your card and report back.

EDIT: I just realised something, you are asking about DVB-S cards. Agree is working on this, and posts related to that are on a different thread - see http://nolanparty.com/mediaportal.sourceforge.net/phpBB2/viewtopic.php?t=2393. This thread is for DVBT cards.

Sam