// Oprogramowanie Roman Ryltsov
This is a begged MFC code for multiple windowless video renderers. MFC project, two independent video renderers hosted by the same parent window (actually through owned controls but this makes no major difference), VMR9 in windowless mode. (this expects C:\Windows\clock.avi file to be available which is no longer the case after Windows XP – simply…
IDirectSoundNotify8 is an interface to get notified on playback on capture audio buffer reaching certain position in the buffer. It is a must thing when implementing ring buffers with new data continuously added to the buffer for seamless playback (continuously copied from in case of capture). This project is a minimalistic C++ sample code to…
Microsoft C++ compiler offers a buffer security check option since quite a long ago. It adds so called “security cookies” onto stack and checks them to be not modified by code in order to early-detect stack buffer overflow conditions. The compiler option /GS is enabled by default in Release configurations and is not applicable to…
Since ATL version 3, and actually it probably existed even since even earlier time, I have seen Microsoft Visual Studio (and its predecessor Visual C++) generating .RGS registration script with hardcoded CLSID value, ProgID values and other strings entered through IDE wizard. While it seems to work nice at the moment of generation, it still…
Although I personally have no experience with tricky DirectShow filters that decide on possibility of connection not only looking at media type and other capabilities, there has been a number of cases mentioned that certain video decoders will only connect to renderers or video renderers in order to avoid interception of decoded data. It was…
A simple question being asked all over again. Given IBasicVideo, IBasicVideo2, IVMRWindowlessControl or IVMRWindowlessControl9, how to save image to file? It is easy. It is a bit easier with IBasicVideo because it is possible to query this interface directly from graph’s interface, such as IGraphBuilder, and the call will be forwarded to video renderer. This…
ATL regular expression code adds dump/debug capabilities with ATL_REGEXP_DUMP preprocessor definition defined (undocumented). Dump output is directed to stdout, so if the application is not console, it has to be redirected in advance, e.g. into a $(BinaryPath)$(BinaryName)-atlrx.h file. CAtlRegExp<> Expression; LPCTSTR pszPattern; BOOL bCaseSensitive; #if defined(ATL_REGEXP_DUMP) REParseError Error = Expression.Parse(pszPattern, bCaseSensitive); if(Error != REPARSE_ERROR_OK) {…