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Video Wall Systems (Fusion Catalyst family)Involved in writing device drivers for Vista/Win7 components within a Video Wall System. Components include video capture boards as well as video output boards. Wrote code to virtualize multi-monitors into a single display, This is a driver-heavy implementation, where the driver hides all the details from the OS as well as user mode app. Windows and user apps only sees a single huge monitor for the walls.. Wrote virtual Windows… Show more Video Wall Systems (Fusion Catalyst family)Involved in writing device drivers for Vista/Win7 components within a Video Wall System. Components include video capture boards as well as video output boards. Wrote code to virtualize multi-monitors into a single display, This is a driver-heavy implementation, where the driver hides all the details from the OS as well as user mode app. Windows and user apps only sees a single huge monitor for the walls.. Wrote virtual Windows display drivers portion for a Linux Virtual Machine video wall. This is accelerated via OpenGL renderer on the Linux side. This provides a Windows based Wall machine with the underlaying Linux OS). Most recent iteration involves support for Windows 10. This also involves porting the the virtual-monitor handling code from kernel to a user mode library and converting the rendering pipeline from DirectX to OpenCL/GL based. Show less

High Definition (HD) h264 transcoder (Windows 7)Involved in writing Windows 7 drivers for a h264 transcoder product. Driver is BDA based driver which exposes encoder,decoder and video processor filters. These filters can talk with 3rd party DirectShow filters. Involved in writing kernel driver modules for BDA tuner, PCie DMA and communication interfaces between PC and device. Involved in writing DirectShow tuner, decoder and encoder filters (hooking them up to the kernel… Show more High Definition (HD) h264 transcoder (Windows 7)Involved in writing Windows 7 drivers for a h264 transcoder product. Driver is BDA based driver which exposes encoder,decoder and video processor filters. These filters can talk with 3rd party DirectShow filters. Involved in writing kernel driver modules for BDA tuner, PCie DMA and communication interfaces between PC and device. Involved in writing DirectShow tuner, decoder and encoder filters (hooking them up to the kernel drivers, which are hooked up to the hardware simulator and emulator. Tested decode datapaths by hooking decoder filter with source and renderer filters from Microsoft. Basically this grabs compressed data from a file on the Windows PC, then sends compressed data over to a device which is hardware emulated on a Windows PC (behaves as if it talks to real software), or a seperate hardware simulator on a Unix box (talks through sockets which "fakes" PCIe memory space of the hardware.. The compressed data is then decoded, and final image is sent back to the PC's renderer filter to be displayed on the screen. .Involved in the equivalent MIPS counterpart for the communication interfaces, and PCIe DMA, as well as interfaces to the mpeg2 decoder module. Wrote socket module which allows hardware simulator on a Unix box to communicate with our application (on Windows PC) Show less

High Definition (HD) based video processing hardware (WinXP device driver using Compuware) Involved in writing Windows XP kernel driver modules for Mpeg2 IBP encoder, DMA, Video In/Out, and Mpeg2 I-frame Encoder/Decoder, for a PCI-X and PCI-E based HD Video Processing hardware. Involved in writing upper layer interface library and API. This API layer hides driver/hardware implementation, and provides a standard interface which an upper layer application to hook up to.… Show more High Definition (HD) based video processing hardware (WinXP device driver using Compuware) Involved in writing Windows XP kernel driver modules for Mpeg2 IBP encoder, DMA, Video In/Out, and Mpeg2 I-frame Encoder/Decoder, for a PCI-X and PCI-E based HD Video Processing hardware. Involved in writing upper layer interface library and API. This API layer hides driver/hardware implementation, and provides a standard interface which an upper layer application to hook up to. Wrote sample code which demonstrates how these APIs should be used. Wrote automated diagnostic Win32 MFC application program for use to filter boards at manufacturing. Involved in writing sample programs to test/verify as well as to serve as templates for the application programmers to make the correct calls when talking with driver modules. Show less