// Oprogramowanie Roman Ryltsov
Active Template Library related
I have been frequently troubleshooting remote systems and otherwise provide various temporary binary files to remote production sites with fixes or beta versions of new features etc. The software is such that that customer sites have specific combination of hardware, configuration, hardware on LAN, software conflicts and there is a number of things that are…
At some point you might need to start paying special care for resources. Why? Perhaps there might be a number of reasons, I had to when I was dealing with first OEM versions of software and then internationalization. The whole idea is to let development team keep on working on regular version of software, in…
Having DirectShow Filter Graph Spy installed in the system, I noticed a new and weird effect that when Media Player Classic plays a list of files and each MP3 file being currently decoded shows decoder’s system tray icon, a switch to a new file leaves an old icon in place and adds a new icon…
At the time of original implementation I intentionally left off a variation of Filter Graph Manager that runs on application thread, CLSID_FilterGraphNoThread. MSDN says: CLSID_FilterGraphNoThread creates the Filter Graph Manager on the application’s thread. If you use this CLSID, the thread that calls CoCreateInstance must have a message loop that dispatches messages; otherwise, deadlocks can…
Inspired by a post on DirectShow Development Forum, it is sometimes useful to find out how certain application is using DirectShow to capture live video and/or audio, or play certain file etc. Filter graph topology, details about media types on the pins, used interfaces and call order. There is quite an easy step for the…
Provided that there already is a JPEG Multi File Source Filter that can act as a video source streaming video from local JPEG files, it looked to be useful to build a virtual camera on top of this filter. This is the main difference: an existing filter is generic and customizable: it requires to be…
I decided to gather DirectShow code and filters related to processing video from network/IP cameras and video servers into a library (in fact, a few libraries) so that it could be easily used for testing, research and other purposes. As time is going to permit, documentation and sample code will be provided, further development will…