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Linker error using DirectShow

Started by HellspawnXIII Mar 2, 2003 at 5:55 PM 4 replies 500+ views

Original Post

Mar 2, 2003 at 5:55 PM

I am making a game that I would like to use DirectShow, so I downloaded the 8.1 SDK, and I keep getting this linker error (using Microsoft VC++ 6.0) about ''an unresolved external symbol _IID_IGraphBuilder''. Anyone know what this is about? What lib files do I need to include in my project? Any help is appreciated. Thanks.

S1CA

169

S1CA

Mar 2, 2003 at 6:01 PM

amstrmid.lib

(IIRC: Active Movie STReaMing ID''s)

--
Simon O''Connor
Creative Asylum Ltd
www.creative-asylum.com

HellspawnXIII

Author

HellspawnXIII

Mar 2, 2003 at 7:09 PM

Holy cow! Just about every definition in amstrmid.lib is giving me grief, totaling 358 linker errors! Here is the output:

amstrmid.lib(strmiids.obj) : error LNK2005: _IID_IKsPropertySet already defined in ChaosSphere.obj

Except imagine 357 more of those with varying symbols. It''s already defined in my game (ChaosSphere)? What is going on?

However, the original _IID_GraphBuilder is no longer an error, so that got fixed.

niyaw

Mar 2, 2003 at 9:48 PM

you #defined INITGUID in some source files but not in others. don''t use it and link with appropriate libs instead.

HellspawnXIII

Author

HellspawnXIII

Mar 2, 2003 at 10:16 PM

<gasp!> My saviors!
Thank you both very much, my game is one step closer to completion.

Thank you again,
HellspawnXIII

HellspawnXIII

Author

HellspawnXIII

Mar 3, 2003 at 12:04 PM

Okay, new problem: I render an mp3, play it, stop it, render a new mp3 and play that one and the old one is still going. They''re both playing at the same time! Do I need to make a new GraphBuilder for every mp3 I want to play? Or can I just ''unload'' the old mp3 and load the new one? I''ve checked out MSDN but none of the functions seemed to do any ''unloading'' except for the ->Release(). Any thoughts?

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