DirectShow filter built with Visual Studio 2019 Preview to run on Windows...
I pushed a few commits to my fork of DirectShow Win7 Samples (BaseClasses library specifically). Windows SDK DirectShow Samples adapted for Visual Studio 2019 One of small problems I happened to deal...
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So, what “W” is for in lstrcmpW
So I took time and submitted a request to update lstrcmpW documentation because it is inaccurate. DirectShow filter built with Visual Studio 2019 Preview to run on Windows Server 2012 It seemed pretty...
View ArticleModern asynchronous C++
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...
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Unicode vs. Windows Console
If I run this, what the output would be? #include <string> #include <iostream> #include <winrt\base.h> #include <winrt\Windows.Foundation.h> #include...
View ArticleHardware AV1 video encoders are coming
There is something interesting finally happening with video encoding and also Media Foundation: Intel® Hybrid AV1 Encoder MFT 11 Attributes: MFT_TRANSFORM_CLSID_Attribute:...
View ArticleWait for IAsyncAction on STA thread
Figured out how to elegantly do a blocking wait for an asynchronous coroutine-enabled function on a STA thread. You can’t do this: // /std:c++latest /await #include <unknwn.h> #include...
View ArticleMPEG-DASH content in StreamingServer application
MPEG-DASH is ISO/IEC 23009 “Dynamic Adaptive Streaming over HTTP” specification. This is widely used to stream audiovisual content over internet opposed to playback of static content such as...
View ArticleMPEG-DASH trick play adaptation set
Just a small addition to MPEG-DASH server: a separate trick play video track with 1 fps just IDR frames track. The “trick mode” itself is essentially this: 3.2.9. Trick Mode SupportTrick Modes are...
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WebCodecs in StreamingServer for JavaScript H.264 decoding
One another small addition to StreamingServer showcase/development application: verification for WebCodecs API video streaming. WebCodecs API offers browser applications video decoding capabilities:...
View ArticlePlayReady DRM in StreamingServer application via MSE/EME
One more video streaming scenario is added to PoC StreamingServer application: ability to stream DRM-enabled content with playback via Media Source Extensions (MSE) and Encrypted Media Extensions EME...
View ArticleVirtual Camera API in Windows 11 (Build 22000)
There is a new API coming with Windows 11. Finally we will get well defined way to register virtual cameras (perhaps for applications built against Windows Media Foundation API, not DirectShow):...
View ArticleDxgiTakeWindowSnapshot & Window Recording w/ Audio
I am sometimes using a rework of earlier DxgiTakeSnapshot application for one specific purpose mentioned below. In addition to Desktop Duplication API, recent version of Windows offer a similar (in...
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YouTube video contains content… blocked on copyright grounds
Previous post embedded a video clip, hosted by YouTube, with a 37 seconds recording of Microsoft Edge window playing another YouTube clip. The video clearly showed UI part of browser and YouTube web...
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MFCreateFMPEG4MediaSink has no H.265/HEVC support
MFCreateFMPEG4MediaSink (CMPEG4MediaSink class) has no support for H.265/HEVC… MF_E_INVALIDMEDIATYPE… It should have been there. We’re not expecting Dolby AC-4 to be supported [yet], but H.265?
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Beyond the Possible
I am replaying a pretty much regular MPEG TS recording taken from air, just with a MPEG TS rollover condition inside. Microsoft Media Foundation – ? FAILMicrosoft Movies & TV Application – ? FAIL...
View ArticleSuspended (or closed?)
As my city of Kharkov, on the North-East of Ukraine, is attacked by MLRS and artillery, I am not really sure that I would want to continue when the fog of war is gone. Thanks everyone for reading over...
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Humanitarian aid in Kharkov, Ukraine
My friend remains in Kharkov, Ukraine, the city experiencing ongoing shelling and destruction. He is running a team of over 40 volunteers whose daily activity is delivery of food and medication to...
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Windows 11 Virtual Video Camera
Just a quick hookup of my test Media Foundation media source into new Windows 11 MFCreateVirtualCamera API. Software video source is presented by Windows 11 as a video capture device. Finally, there...
View ArticleDaily missiles
This used to be a secondary school 500 meters away from where I used to live. Russian Federation keeping attacking Kharkov nightly firing a few guided missiles from Belgorod region (40+ kilemeters...
View ArticleKharkov Today
A fresh tour around Kharkov. Over last a few months the city is air-attacked daily and locals refer to these events as “Belgorod Express” because rockets are launched from neighborhoods of Belgorod in...
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