// Oprogramowanie Roman Ryltsov
It appears there is a sort of a limitation (read: “a bug”) in Media Foundation MPEG-4 File Source implementation when it comes to reading long fragmented MP4 files. When respective media source is used to read a file (for which, by the way, it does not offer seeking), the source issues a MF_SOURCE_READERF_ENDOFSTREAM before reaching…
It appears that re-initialization of encoding session with NVIDIA Video Codec SDK is or might be producing an unexpected memory leak. So, how does it work exactly? The root case problem is secondary nvEncInitializeEncoder call. Alright, it might be not exactly how API is designed to work, but returned statuses all indicate success, so it…
Some time ago I wrote about a bug in AMD’s H.264 Video Encoder MFT, where implementation fails to synchronize access to Direct3D 11 texture. So Intel’s implementation has exactly the same problem. Intel® Quick Sync Video H.264 Encoder MFT processes input textures/frames without acquiring synchroization and can lose actual content. It is pretty hard to reproduce…
If you are curious what video encoding capabilities Radeon RX Vega M GH Graphics offers for a Media Foundation application, here are the details. Some introductory information for starters: The AMD Radeon RX Vega M GH is an integrated GPU in the fastest Intel Kaby-Lake-G SoC. It combines a Kaby-Lake processor, a Vega graphics card…
ID3D11VideoContext::VideoProcessorSetOutputTargetRect method: The target rectangle is the area within the destination surface where the output will be drawn. The target rectangle is given in pixel coordinates, relative to the destination surface. If this method is never called, or if the Enable parameter is FALSE, the video processor writes to the entire destination surface. Okay, let…
It might be an “old†version of Intel Media SDK runtime but still it is expected that software is running fine in older environments as well. MFXVideoVPP_Reset API is available since SDK API 1.0, there is nothing new with it. In certain scenario I use the API to change resolution of the processed video and…
Microsoft released AV1 Video Extension (Beta) via their store: Play AV1 videos on your Windows 10 device. This extension is an early beta version of the AV1 software decoder that lets you play videos that have been encoded using the AV1 video coding standard developed by the Alliance for Open Media. Since this is an…