// Oprogramowanie Roman Ryltsov
Video related stuff
Since Microsoft Windows Vista, Media Foundation API offers a set of convenient Digital Signal Processors for video and audio processing. These include conversion helpers for video and audio, dual interfaced as Media Foundation Transforms (MFTs) and DirectX Media Objects (DMOs). Earlier posts shed some light on DMO interfaces, and use of DMOs in DirectShow graphs…
One of the recent updates delivered via automatic Windows Update is breaking video decoding for Windows Media Video streams (four character code WMV3). It’s hard to trace things back, however the most likely issue is the update of WMVDECOD.DLL file which is dated 6 May 2013 delivered with MS13-057: Description of the security update for…
The tool provides a user- (well, actually a developer-) friendly printout of capabilities accessible via Blackmagic Design DeckLink SDK for DeckLink series of hardware. This covers features of DeckLink and Intensity series of hardware for video/audio capture, accessible via vendor’s SDK. The data is printed out in Markdown format, easy to read on its own…
As mentioned before, new Skype 6 broke compatibility with all virtual DirectShow devices out there. Just oops, nothing works any longer if only it is not a full driver exposing virtual device through WDM. Since quite some people are interested in details (Skype 6 Virtual Camera issues, Skype Client for Windows – SCW-3881 – Virtual…
This publishes a small update to IP Video Source tool to expose M-JPEG/JPEG video streams as DriectShow video devices. The utility now accepts https:// URL scheme and pulls video over secure connections. Not every camera has support for HTTPS, however many do including those from UDP Technology, Axis etc. The update also includes other minor…
More charts on libx264. Is it true to assume that it takes longer to encoder higher quality (lower rate factor in CRF mode) content? The figures answer that yes, indeed:
As libx264 has so many presets and tunes, I was curious how they all related one to another when it comes to encode video info H.264. I was more interested in single pass encoding for live video, so the measurements are respectively for this mode of operation with encoder running in CRF (constant rate factor,…