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| The Basics to Using DirectShow |
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jmmolina Member since: 1/10/2002 From: Lyon, France |
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 Posted - 2/9/2002 12:41:48 AM |
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| It's a very interesting article you wrote. I am trying DirectShow right now and it works just fine. It's very simple to use but I have a few problems with an ASSERT: ASSERT Failed mtIn == mtOut At line 423 of d:\nt_chk\multimedia\dshow\filters\core\filgraph\filgraph\filgraph.cpp Continue? (Cancel to debug) It occures each time I initialize DirectShow. I tried the sample from the SDK and I have the same problems. I tried BGMusic.exe, Jukebox.exe... But It perfectly works when I press the Yes button on the Assert message box. Can you help ? [Edited by - jmmolina on November 4, 2004 9:41:49 PM] |
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Halsafar Member since: 8/29/2004 From: Saskatoon, Canada |
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Posted - 6/8/2005 9:36:22 PM |
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| This is old but I bet someone will use it eventually. The article is missing which libraries must be referenced: Strmiids.lib Exports class identifiers (CLSIDs) and interface identifiers (IIDs). All DirectShow applications require this library. Quartz.lib Exports the AMGetErrorText function. If you do not call this function, this library is not required. |
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Halsafar Member since: 8/29/2004 From: Saskatoon, Canada |
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Posted - 6/8/2005 9:52:33 PM |
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| Also, pGB->Run() is incorrect. pMC->Run() would be the correct one, since the MediaControl is the player not the graph builder. |
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hardest Member since: 12/1/2005 From: Ta boc, Viet Nam |
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Posted - 12/1/2005 9:59:54 PM |
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| I want creat button backward anh forward in media player of me,I use directshow,but i don't understand that function, and i don't understand about creat seek. can somebody help me? |
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Anonymous Poster |
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Posted - 2/9/2006 3:52:06 PM |
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| Add this static IMediaSeeking *pMS = NULL; and later, insert this pGB->QueryInterface(IID_IMediaSeeking, (void **)&pMS); I used the seeking control to find out when to continue my game, instead of using events LONGLONG cur,dur; pMS->GetDuration(&dur); pMS->GetCurrentPosition(&cur); if (cur>=dur-1) { pMC->StopWhenReady(); Play=FALSE; } |
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Nexilus Member since: 2/24/2008 From: Lulea, Sweden |
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Posted - 2/24/2008 7:13:59 AM |
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| Nice article but i am having a problem, i want to capture the current frame and save it to file (jpg/bmp), for this ive started with the AmCap sample provided in the SDKs, added a binded button (ins) to start a function that should in the end do this, but i'm lost, i dont know at all what to do. So please, could anyone help me out here? Im using Visual Studio 2008, C++, without MFC. Contact me here or by e-mail caligo(at)nexilus.com |
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psanthu123 Member since: 5/7/2008 From: Bangalore, India |
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Posted - 5/23/2008 12:25:51 AM |
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| This is very good artical, very much helpful. I am facing some issue with mouse and key events, once i set the owner to my child window, video is playing properly on child window, but i am not reciving the mouse event on the child window. I have tried put_MessageDrain() with both parent and child window, but the result is same. //Set the child window pVW->put_Owner((OAHWND)g_hwnd); //Sets the child window pVW->put_Windowstyle(WS_CHILD | WS_CLIPSIBLINGS); //here we create a RECT in which to draw the child window on RECT vwrect; //get the size of the Parent GetClientRect(g_hwnd,&vwrect); //Set the Child to this position pVW->SetWindowPosition(0,0,vwrect.right,vwrect.bottom); pVW->put_MessageDrain((OAHWND) g_hwnd); |
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