// Oprogramowanie Roman Ryltsov
The application takes advantage of three powerful Windows APIs at a time: Desktop Duplication API Media Foundation Hardware H.264 Video Encoders MediaFoundationDesktopRecorder initializes a desktop duplication session and sends obtained desktop images to H.264 video encoder producing a standard MP4 recording. Optionally, it can add an audio track capturing data from one of the standard…
Two H.264 MP4 files, close one to another. The files are playable, a sort of: Windows desktop players (except Media Foundation based), QuickTime, Android and iOS devices play them. The files are not flawless but make sense, hence the glitches. There is a problem with the second file, which is rejected by Twitter “Your media…
An update for Reference signal source for DirectShow DLLs: the source is doing more accurately RGB subtypes and allows specification whether you want MEDIASUBSTYPE_RGB32 or MEDIASUBSTYPE_ARGB32 additionally the DLL implements Microsoft Media Foundation Media Source for the video stream A more detailed description follows. RGB32 and ARGB32 are very close and share the same byte…
A really nasty problem coming from MainConcept AVC/H.264 SDK Encoder was destroying media streaming pipeline. SDK is somewhat old (9.7.9.5738) and the problem might be already fixed, or might be not. The problem is a good example of how a small bug could become a big pain. The problem was coming up in 64-bit Release…
H.264 (MPEG-4 Part 10 also known as MPEG-4 AVC) video encoding was never packaged into DirectShow filter by Microsoft and instead they offered Media Foundation Transform (MFT) for the job: H.264 Video Encoder. Further development gave us third party video encoders also packaged as MFTs. Hardware backed MFTs became a part of video hardware drivers…
A scenario which was dropped out from previous post is mixed simultaneous encoding using both hardware encoders. Rationale: Intel QSV encoder might exist as a “free” capability of the motherboard (provided with onboard video adapter), The other one might be available with the video adapter intentionally plugged in (including for other reasons, such as to…
Some time ago there were some pictures explaining performance and other properties of software H.264 encoder (x264). At this time, it is a turn of hardware H.264 encoders and more to that, two of them and side by side. Both encoders are nothing new: Intel® Quick Sync Video H.264 Encoder and NVIDIA H.264 Encoder already…