[openbeosmediakit] Re: Aw: MOV reader for Haiku media kit

  • From: "David McPaul" <dmcpaul@xxxxxxxxxxxxxx>
  • To: Marcus Overhagen <marcusoverhagen@xxxxxxxx>
  • Date: Sat, 12 Mar 2005 10:24:45 +1100 EST


        Here is the stack crawl.

loading symbols
Can't register system time source
+0007  ec084853:   *            c3    retn
   frame         retaddr
fd001604   80005741  MediaAddonServer::ReadyToRun(void) + 00000099
fd0016ac   ec15feab  BApplication::DispatchMessage(BMessage *, BHandler 
*) + 000001cf
fd0018cc   ec168c49  BLooper::task_looper(void) + 0000029d
fd001b58   ec1620ec  BApplication::Run(void) + 0000005c
fd001b6c   800074c1  main + 0000006d
fd001b84   800050b5  _start + 00000061                    

        The error is from this code

        BMediaNode *ts = new SystemTimeSource;
        status_t result = mediaroster->RegisterNode(ts);
        if (result != B_OK)
                debugger("Can't register system time source");

But I think this is not really the problem.  I removed the code to 
launch the media_addon_server from the media_server and did it manually 
and there was no problem running the media_addon_server.  I then 
changed the code to launch the media_addon_server from using the mime 
type to using the directory again.  This also works fine.  So I think 
the problem above is just that the launching with mime type is not 
working on my machine.

Now everything runs but I don't get any sound.  Looking at the Media 
prefs I have no output control to assign to the sound card (I have an 
input control though).

Anyway, this is enough for me to debug my mov reader so I can work with 

Any thoughts on the no sound issue?

cc'ing to the mailing list in case anyone is listening.


On Fri, 11 Mar 2005 13:49:30 +0100 (CET) Marcus Overhagen <
marcusoverhagen@xxxxxxxx> said
> Hi David,
> i think this is a media kit error, which I couldn't fix because I 
> don't own the hardware.
> If it crashes, you could send me a stack crawl. We should really go 
> and fix this bug.
> I can also try to buy a card with emu10k, they shouldn't be that 
> expensive.
> Perhaps someone on the mailingst has a spare card.
> Workaround would be to use another soundcard.
> ----- Original Nachricht ----
> Von:     David McPaul <dmcpaul@xxxxxxxxxxxxxx>
> An:      Marcus Overhagen <Marcus@xxxxxxxxxxxx>
> Datum:   12.03.2005 04:04
> Betreff: MOV reader for Haiku media kit
> > Marcus,
> > 
> >     I am developing a Quicktime MOV file reader for Haiku with the 
> > expectation of adding MP4 file reading functionality as well.
> > 
> >     I now have the code to a state where I want to start testing it 
> > within the haiku media kit.
> > 
> >     Unfortunately I can no longer run the media_addon_server 
> > because of 
> > this problem:
> > 
> > Emu10k chipset based soundcards (SoundBlaster Live, SoundBlaster 
> > 512PCI) will crash the media_addon_server
> > 
> >     Is there anything I can look at to fix this?
> >     Or a workaround?
> > 
> >     Otherwise I can continue developing the parser side of the code 
> > and 
> > leave it to someone else to create/test the haiku side.

Veni, Vidi, Visa.

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