Help (JavaTV vs JMF vs MHP?!)

hi,
could someone delineate for me the roles of the different APIs mentioned in the title. From what I have read I infer that MHP is a framework which allows sending Xlets with the TV stream which are then executed on the set top box. What API should you use if you want to have a go at writing an application that resides on the computer/STB and gives the user information about scheduling and allows them to change channels, and which might be extended to employ recording of tv programmes? I am a little confused as to whether JavaTV should be used for this or JMF?
In addition what is the hardware compatibility like for these technologies - I was looking at trying to write a program to use on my PC and receive digitalTV from an ATI or NVIDIA card. Do these APIs support this hardware?
Many thanks

MHP is more than an API - it includes a specification for content formats, for network protocols, for security policy, for a graphics model as well as a number of APIs of which JavaTV and JMF are examples.
JMF is a generic media player API originally designed for streaming media across intranets or perhaps the internet. MHP and JavaTV use parts of JMF version 1.0 but a lot of it is simply not appropriate in TV.
JavaTV sounds closest to what you want.
None of these (yet) support recording apart from JMF version 2.0 which is not included in either JavaTV or MHP and probably never will be.
There is an implementation of MHP available for free for the PC from www.m hp4free.de but this may not support the hardware platform you want to use and the www site is entirely in German. There is also www.openmhp.org but there's not a lot of documentation on their www site without downloading it.

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Scaling a video played by JMF in MHP

Hi
I'm looking for the approach scaling the area where
a video plays in MHP.
This video is played by JMF.
MHP HAVi defines a class "HVideoDevice",
and it has a member method "getVideoController()"
which return a java.lang.Object. It seems that
the returned video controller should be able to
scale the video area.
I also check the javaDoc of JavaTV and I found that
there is an interface "AWTVideoSizeControl"
which looks exactly what I need.
Is this how MHP scales a video area?
Does JavaTV RI 1.1 implement this interface?
I'm also wondering that if the implementation returns
a class which implements AWTVideoSizeControl.
Any reply is appreciated.

Hi!
I can give you a code that uses the AWTVideoSizeControl and scales the video.Here is the code:
Rectangle source = new Rectangle(0, 0, 720, 576);
Rectangle destination = new Rectangle(360, 0, 720/2, 576/2);
resize(new AWTVideoSize(source, destination));
private void resize(AWTVideoSize size) {
          ServiceContextFactory serviceContextFactory = null;
          javax.tv.service.selection.ServiceContext serviceContext = null;
          try {
               serviceContextFactory = ServiceContextFactory.getInstance();
               serviceContext = serviceContextFactory.getServiceContext(context);
          }//end try
          catch (Exception ex) {
               ex.printStackTrace();
          }//end catch
          if (serviceContext != null) {
               ServiceContentHandler[] serviceContentHandler = serviceContext.getServiceContentHandlers();
               Player player = null;
               if (serviceContentHandler.length > 0) {
                    player = (Player) serviceContentHandler[0];
               }//end if
               if (player != null) {
                    AWTVideoSizeControl awtVideoSizeControl = (AWTVideoSizeControl) player.getControl("javax.tv.media.AWTVideoSizeControl");
                    awtVideoSizeControl.setSize(size);
               }//end if
          }//end if
     }//end methodThen you can start the player and play the scaled video.
I hope it can help you.
(I'm sorry for my bad english)
Bye!!

Is licence required for implementing JavaTv and JMF.

Hi,,
I am trying to develop GEM middleware for my STB,
The STB has OS20 as RTOS and implemented on an ST chip
This GEM is DVB MHP minus DVB.
We have to implement JavaTV package and JMF for that,
But do we have to pay any royalty to SUN for implementing the JavaTV or JMF packages or can we implement the binary versions of the packages.
Please letme know how to implement the following packages
org.havic.*
org.davic.*
javax.tv.*
org.dvb.*
and JMF?

Hi Rohit,
let me also add a few words. In principle the process Sales Order Processing B2B with ERP sales order in CRM Web Channel means that you setup (a) Web shop(s) that use and display the CRM product catalog but create orders directly in SAP ERP without first creating them in SAP CRM. It also allows to use certain E-Marketing features of CRM in the Web shop. The CRM product catalog in this process can only be used if you do use the TREX. There is no way of directly call up the catalog from CRM in the Web shop by bypassing the TREX.
In the SAP E-Commerce for SAP ERP solution (ECO ERP) we in contrast offer the possibility to use the ERP catalog without the TREX. In this solution you can use the Memory Catalog which is not using the TREX. This solution by this way allows to directly use and display the ERP catalog and create orders directly in SAP ERP.
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Greetings
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Need help in installing jmf

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C:\PROGRA~1\JMF21~1.1E\lib;C:\WINDOWS\java\classes;.
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Doesn't jmf set the classpath and path for you. We don't even have to move even a strand of hair. Everything is handled by the jmf.

What is the relationship of javatv api,jmf api and mhp api ?

Whether all these three set of API are required to write digital tv program?

That depends on what the digital TV program (I assume you mean MHP application) wants to do. Specifically;
- javax.tv.xlet.Xlet is needed whatever you want to do.
- Most of the rest of JavaTV is only needed if you want to write an electronic program guide, e.g. to get at service information.
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- You don't mention them but you also probably need some of the org.havi.ui APIs. In MHP, the top level graphics Container class for applications is an instance of org.havi.ui.HScene. Also the "VK_" constants for some of the remote control codes are only defined in org.havi.ui.HRcEvent.
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Jmf in mhp

Hi all,
Can any one tell me how can I creat JMF player in MHP without any services I mean STB is not connected to any satellite.Ur help is higly appriciated in this regard.Pls let me know in detail.U can mail me at [email protected]
Ramesh

You can't create a valid JMF player for a DVB service without having a valid locator for it (meaning, one that the implementation can recognise as valid and pointing to some useful content). If you try, Manager.createPlayer() should throw an IOException.
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New MovieTools project to help gather useful JMF utilities

Hi,
I wanted to announce a new project called movieTools on java.net that may be helpful to folks working with JMF. http://movietools.dev.java.net
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Make that URL http://movietools.dev.java.net

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One solution to most of your questions : Read the advanced table section of Dev guide.
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Thomas R.

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Help for "Table" component in mhp/dtt

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i'm a Italian software developer.
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Claudio

hi
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HELP, Diagnostics Applet JMF classes.....Not Found

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http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/jmfdiagnostics.html

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Hi,
try to implement the Interface MouseListener (or the corresponding MouseAdapter):
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How to record DVB-S Stream with JavaTV/JMF ?

Hi,
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Steve.

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[http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/solutions/FrameAccess.html]

Help (JavaTV vs JMF vs MHP?!)

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