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There is no need to compile our DLLs as shared libraries since we are managing symbols exports and imports through spec files. On my system, this reduces the configure-time by a factor of two. |
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| audio | ||
| bdasup | ||
| CMakeLists.txt | ||
| README | ||
This is a directory for the kernel streaming components, along with multimedia kernel-mode drivers. Much of this code exists only as stubs for future implementation. The "include" directory exists as a place to store the KS related headers. It should be moved to the main include tree later. Andrew Greenwood 3rd December, 2006 == Kernel Streaming (KS.SYS) == Deals with streaming media. This is the core component for this, and can be interacted with from usermode (usually via DirectX.) XP and DirectX 8 versions of this component provide an additional suite of AvStream API functions. COM-style interfaces are used with this component. == SysAudio (SYSAUDIO.SYS) == Filter graph builder (deals with topology.) Not sure what this does yet. == Port Class (PORTCLS.SYS) == Used by WDM audio drivers, this handles many common tasks required for audio drivers. COM-style interfaces are used with this component. == WDM Audio (WDMAUD.DLL / WDMAUD.SYS) == Effectively a relay from usermode to kernelmode, the usermode portion is a MME-style driver (for WINMM.DLL) which tells the kernelmode portion what to do. This typically involves interacting with KS.SYS in some way. In Vista, the kernelmode portion is no longer present and the usermode portion interacts with the Vista audio stack (which resides in usermode but also ultimately ends up going back into kernelmode in the end!) == Optional drivers == - sndblst Sound Blaster (+ Pro / 16) compatible driver - mpu401 MPU-401 MIDI compatible driver