Author: Roman

Internal E_UNEXPECTED in dxgi.dll

Posted on March 13, 2021March 13, 2021 by Roman

Someone asked a question on StackOverflow recently about suspicious debug output messages associated with DXGI/Direct3D initialization: DirectX12: dxgi dll catastrophic failure when creating IDXGIFactory. onecore\windows\directx\database\helperlibrary\lib\perappusersettingsqueryimpl.cpp(121)\dxgi.dll!00007FFBA0D6D7F8: (caller: 00007FFBA0D4D167) ReturnHr(1) tid(64d8) 8000FFFF Catastrophic failure onecore\windows\directx\database\helperlibrary\lib\perappusersettingsqueryimpl.cpp(98)\dxgi.dll!00007FFBA0D6D4D0: (caller: 00007FFBA0D3E221) ReturnHr(2) tid(64d8) 8000FFFF Catastrophic failure onecore\windows\directx\database\helperlibrary\lib\directxdatabasehelper.cpp(999)\dxgi.dll!00007FFBA0D6D4FC: (caller: 00007FFBA0D3E221) ReturnHr(3) tid(64d8) 8000FFFF Catastrophic failure This problem is not fatal or severe…

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DirectShow VCam source code

Posted on January 31, 2021 by Roman

Introducing another popular DirectShow project: Vivek’s source filter which emulates a video capture device. For a long time the code was hosted on P “The March Hare” W’s website, which was eventually taken down. I placed the recovered project, binaries, README and upgrade to Visual Studio 2019 on GitHub: roman380/tmhare.mvps.org-vcam: Original Vivek’s popular sample project…

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Windows SDK DirectShow Samples adapted for Visual Studio 2019

Posted on January 23, 2021 by Roman

Over 20+ years there have been a steady flow of questions “how to build these projects”. Back in time the problem was more about having exactly matching settings in the application/library projects and mandatory dependent static library. At some point Microsoft abandoned the samples, then removed from the SDK completely. Luckily, some point the samples…

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Support for FLAC in ISO BMFF with MSE in StreamingServer application

Posted on January 10, 2021January 10, 2021 by Roman

Chrome platform supports FLAC encoding in ISO BMFF (fragmented MP4) media since version 62 (October 2017), however the support for FLAC (and Opus) overall did not become standard and comprehensive since then. I hooked up Microsoft FLAC Audio Encoder MFT into media streaming application to produce media and check browser compatibility. /audio.mp4?flac – produces FLAC…

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Reference HTTP Live Streaming (HLS) server application

Posted on January 3, 2021January 10, 2021 by Roman

StreamingServer is the application I am using as internal testbed for various media processing and encoding primitives. As an application (or service) it is capable to stream HLS assets preparing them on the fly without need to keep and host real media files. The functionality includes: Encodes and multiplexes ISO BMFF Byte Stream Format media…

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Microsoft HEVCVideoExtension software H.265/HEVC encoder

Posted on December 30, 2020December 30, 2020 by Roman

The engineering quality of most recent Microsoft’s work around Media Foundation is terrible. It surely passes some internal tests to make sure that software items meet requirements of the use cases required for internal products, but published work gives impression that there is noone left to care about API offerings to wide audience. One new…

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Video encoding by NVIDIA GeForce RTX 2070

Posted on December 30, 2020December 30, 2020 by Roman

Following previous post on AMD hardware video encoders, this shows how better NVIDIA hardware is in comparison. And they sell successor hardware series already!