Recent changes to support-requests

StreamedVideoCHook does not work

carey — Wed, 13 Jun 2012 23:37:37 -0000

Hi,

I am trying to create a video on demand example as shown below, using the IC extensions, using the freesat profile. (though as a separate issue I understand this should be in the nz profile but its not?). Anyway it seems to get to
MhegPlus.Compiler\src\bbc\dtv\mhegplus\asimux\Url.java
where the http urls are not handled at all.

Does this mean mheg playback of video over ip is not supported in the player? If so can you offer any advice on how to do this?

I am using the trunk.

Thanks,
Carey

{:Stream mystream
:CHook StreamedVideoCHook
:OrigContent :ContentRef('http://www.myexample.com/iptv/content/sample.mpg')
:Shared True
:Multiplex
(
{:Video myvid
:OrigBoxSize 720 576
:OrigPosition 0 0
:ComponentTag 51
}
)
}

bbc.dtv.mhegplus.asimux.ParseException: Badly formed URL: http://www.myexample.com/iptv/content/sample.mpg
at bbc.dtv.mhegplus.asimux.Url.<init>(Url.java:62)
at bbc.dtv.mhegplus.mhegtree.MhegVideo.getDisplayedVideo(MhegVideo.java:232)

"If" error :S

Jorgito — Wed, 06 Oct 2010 15:33:50 -0000

I'm trying to get familiarized with the mheg+ syntax and I'm getting this error with an "if" sentence.
Can you tell me where is the problem?

>java -jar MhegPlus.Compiler-1.0.1.jar -f startup -p hello.mheg+ -d out -P
06-oct-2010 17:35:34 bbc.dtv.mhegplus.Cli compileMhegPlus
INFO: Compiling startup
06-oct-2010 17:35:34 bbc.dtv.mhegplus.Cli compileMhegPlus
INFO: Compiling hello.mheg+
06-oct-2010 17:35:34 bbc.dtv.mhegplus.MhegPlus runLoad
GRAVE: Parse exception: Encountered " ":" ": "" at line 13.
Was expecting one of:
"{" ...
")" ...
>

This is my code:

{:Scene ('/hello.mheg+' 0)
:Items
(

{:IntegerVar int_var_A
:OrigValue 8
}

{:IntegerVar int_var_B
:OrigValue 10
}

:If ( int_var_A > int_var_B ){
{:Text txtHello
:OrigContent "Hello MHEG+ World!"
:OrigBoxSize 400 50
:OrigPosition 10 100
:HJustification centre
:VJustification centre
}
}:Else{
{:Text txtBye
:OrigContent "Bye MHEG+ World!"
:OrigBoxSize 400 50
:OrigPosition 10 200
:HJustification centre
:VJustification centre
}
}

)
:InputEventReg 4
:SceneCS 720 576
}

Thanks!

Wrong characters (á, è, ñ, ç, etc)

Jorgito — Mon, 04 Oct 2010 18:28:54 -0000

I don't know if this is a bug or a problem in my source code :s Can you help me?

This works fine, the textbox shows the correct characters:
{:Text 1
:CHook 10
:OrigContent 'Xavi disput=C3=B3 los 90 minutos el mi=C3=A9rcoles ante el Rubin Kazan y acab=C3=B3 el encuentro con molestias.'
:OrigBoxSize 710 266
:OrigPosition 10 300
:HJustification justified
:VJustification centre
:TextWrapping true
}

This don't work...shows the charcodes (=C3=B3) instead the correct characters (ó).
{:Text 1
:CHook 10
:OrigContent :ContentRef ('/text.txt')
:OrigBoxSize 710 266
:OrigPosition 10 10
:HJustification justified
:VJustification centre
:TextWrapping true
}

"text.txt" contains: "Xavi disput=C3=B3 los 90 minutos el mi=C3=A9rcoles ante el Rubin Kazan y acab=C3=B3 el encuentro con molestias."

Thanks in advance!

Mheg player recompilation error

Luigi Tavolato — Fri, 24 Sep 2010 10:50:32 -0000

After reading the section "Compiling the MHEG+ toolkit" I installed maven and started trying to recompile the whole package using nightly snapshots.
Pervious snapshot gave me problems in the testing phases of compiler packaging, but the last one fixed for some reason this problems.
Now I'm able to recompile correctly the mheg compiler in the "tags" directory tree but if I try to (re)compile the mheg player I receive this error:

[INFO] Failed to resolve artifact.

Missing:
----------
1) bbc.tvp.mhegplus:MhegPlus.Compiler:jar:1.0.1-SNAPSHOT

How can I fix this problem?
Thanks
Luigi

Illegal UK Color warning

Luigi Tavolato — Thu, 23 Sep 2010 13:54:13 -0000

While compiling my code I received many of this messages:

23-set-2010 15.41.50 bbc.dtv.mhegplus.mhegtypes.MhegColour$Absolute profileUKVerify
AVVERTENZA: Illegal UK DTT colour: '=00=33=66=99', at line 278.

I've gone through MHEG-5 UK Profile, v1.06 specification but I didn't found any reason for this warning.
I've also checked the mheg+ test code that comes with the sources and I've found analogous definitions:

{:Rectangle rectEventSinopsysBackground
:OrigBoxSize 700 35
:OrigPosition 0 50
// :OrigRefLineColour '=D4=D4=D4=00' mheg+ tests code
// :OrigRefFillColour '=D4=D4=D4=00'
:OrigRefFillColour '=00=33=66=99' // my code
:OrigRefLineColour '=00=33=66=99'
:InitiallyActive false
}

Other compilers do not show any similar warning.
How can I fix it?

Usage of global variables

Luigi Tavolato — Wed, 22 Sep 2010 11:06:44 -0000

If I need to use a global variable I define it in the startup code and then I reference it using its id and the name of the script (i.e. :Stop(("/startup" 13)).
I suppose that if I use symbolic names I have to maintain the same syntax (i.e. :Stop(("/startup" bmpGreenIcon))). Isn't it?

Using Resident Programs

Luigi Tavolato — Fri, 17 Sep 2010 20:58:56 -0000

Since there is just a sample at the moment in the documentation I'm trying to develope some little applications, each one testing some feature of the mheg+ environment (great work, thanks!). Today I'm trying to display date&time on the screen using a couple of resident programs: GCD (GetCurrentDate) & Fda (Fornat Date) but when I compile the code I receive this message:

INFO: Compiling datetime.mheg+
17-set-2010 21.35.23 bbc.dtv.mhegplus.MhegPlus process
GRAVE: :Call (prgGetCurrentDate) at line 76: Target is a :ResidentPrg but success variable a :IntegerVar!
17-set-2010 21.35.23 bbc.dtv.mhegplus.MhegPlus process
GRAVE: :Call (prgFormatDate) at line 79: Target is a :ResidentPrg but success variable a :IntegerVar!

The code is:
......
{:IntegerVar intStatus :OrigValue 0}
{:IntegerVar intDate :OrigValue 0}
{:IntegerVar intTime :OrigValue 0}
{:OStringVar strTemp :OrigValue ''}
{:OStringVar strFmtDate :OrigValue '%D/%X/%Y %H:%M'} // Format for date & time
......
{:ResidentPrg prgGetCurrentDate :InitiallyActive false :Name "GCD" }
{:ResidentPrg prgFormatDate :InitiallyActive false :Name "FDa" }
......
:Call(prgGetCurrentDate intStatus :GInteger :IndirectRef intDate :GInteger :IndirectRef intTime)
:Call(prgFormatDate intStatus :GOctetString :IndirectRef strFmtDate :GInteger :IndirectRef intDate :GInteger :IndirectRef intTime :GOctetString :IndirectRef strTemp)
......

The last two lines (76 & 79) cause the displayed error. How can I fix this?
Thanks a lot
Luigi

Mheg player setup

Luigi Tavolato — Thu, 09 Sep 2010 10:13:04 -0000

I'm starting to test the player as suggested (java -jar MhegPlus.MhegPlayer-1.0.1.jar) and a popup with the following message is shown:
please rerun with uk.co.bbc.itv.fontmetrics and log4j in the classpath.
The classpath for log4j seems to be oky (...;C:\Program Files\Java\jre6\lib\apache-log4j-1.2.16/.;C:\Program Files\Java\jre6\lib\apache-log4j-1.2.16/log4j-1.2.16.jar;...) but I do not have this version of fontmetrics (it is not in the BBC jar files nor in other jar files I have).
Have you any suggestion for solve this problem?
Thanks a lot
Luigi

documentation

Luigi Tavolato — Tue, 24 Aug 2010 18:40:30 -0000

Hi guys, thaks for having shared your environment for developing mheg applications.
When do you plan to share also some documentation and examples about how it works and how to use it?
Regards
Luigi