// Oprogramowanie Roman Ryltsov
Windows API offers asynchronously implemented functionality for file, network and other I/O since long ago. It was maybe one of the easiest way to make a simple thing messy and ridiculously bloated and sensitive to errors of sorts. If you’re sane and you don’t need to squeeze everything out something you would just not use…
So I took time and submitted a request to update lstrcmpW documentation because it is inaccurate. It seemed pretty obvious that Syntax section shows W types (correct) and Parameters section shows T types trying to document the same thing. Some articles, for CRT functions specifically, solve this by documenting a set of similar functions at…
I pushed a few commits to my fork of DirectShow Win7 Samples (BaseClasses library specifically). One of small problems I happened to deal with is that a filter built with current/recent toolset produces code incompatible with legacy operating systems, which are still widely present in the wild. This could be solved by using outdated versions…
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…
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…
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…
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…