// Oprogramowanie Roman Ryltsov
Some version of Microsoft Windows OS have rather dangerous subsystem known as MP4 property sheet handler (“MF MPEG-4 Property Handler” to be exact). Programmatically, you would use API like SHGetPropertyStoreFromParsingName and use IPropertyStore from there to read (reading is OK) and update/write certain MP4 file properties like, for example, a comment or som other metadata.…
There is some support for Opus in Windows, unfortunately however it is not documented. IIRC it came to extend media codec support in Microsoft Edge browser, and since internally Microsoft Edge is using standard platform media API Media Foundation, the decoder came in format of Media Foundation Transform. It is interesting that Opus decoding was…
In: Out: 1>—— Build started: Project: CppWinrt01, Configuration: Debug x64 ——1>CppWinrt01.cpp1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\cppwinrt\winrt\impl\Windows.Foundation.0.h(983,26): error C2039: ‘wait_for’: is not a member of ‘winrt::impl’1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\cppwinrt\winrt\impl\Windows.Foundation.0.h(103): message : see declaration of ‘winrt::impl’1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\cppwinrt\winrt\impl\Windows.Foundation.0.h(985): message : see reference to class template instantiation ‘winrt::impl::consume_Windows_Foundation_IAsyncAction’ being compiled1>C:\Program Files (x86)\Windows Kits\10\Include\10.0.19041.0\cppwinrt\winrt\impl\Windows.Foundation.0.h(1004,26): error C2039: ‘wait_for’: is not a…
Thanks to game streaming tech of Rainway and effort of Andrew Sampson, games get streamable to a new device now: Tesla onboard computer. If P+R is park and ride, P+P will be park and play.
DirectShow Video Mixing Renderer (VMR-7) filter exhibits a (regression?) bug in Windows 10 systems. When aspect ratio preservation is enabled in VMR_ARMODE_LETTER_BOX mode, which makes overall sense as default mode quote so often, the letterboxing does not work as expected. The problem is easy to reproduce with a well known DShowPlayerSDK sample application, with an…
Windows 10 Anniversary Update brought a breaking change that removed, in many cases, hardware compressed video formats from video capture APIs, even though the devices themselves are known to have respective capabilities. DirectShow MJPEG frame type in USB cameras is not working after Windows 10 anniversary update (1607) Webcam MJPG capture streams are unavailable on…
To follow up previous post with Media Foundation bug, here goes another one related to property handler for MPEG-4 files (.MP4) and specific property PKEY_Video_FrameRate which reports frame rate for given media file. This is the object responsible for filling columns in explorer, or otherwise visually the bug might look like this: The values of the properties are…