// Oprogramowanie Roman Ryltsov
A while ago I posted a tool that updates a [freshly built] binary version information resource and increments build numbers for version identification and tracking. This time it is a variant of the tool: the utility would check git details for a given repository clone and embed it as a string item of the version…
User’s question about Alax.Info IP Video Source DirectShow filter for JPEG/M-JPEG video: As it stands now, in order to configure the video capture source filter, I have to instantiate it […], set the properties (camera URL, and video dimensions), then save the filter state to a data array which is then compiled into the application.…
I already wrote earlier on 32/64-bit issues with Visual Studio. The problems are not frequent but when they happen they are pretty confusing. Here is another one today. C++ code is simple: #import “libid:59941706-0000-1111-2222-7EE5C88402D2” raw_interfaces_only no_namespace CComPtr<IObject> pObject; ATLENSURE_SUCCEEDED(pObject.CoCreateInstance(__uuidof(Object))); BYTE* pnData; ATLENSURE_SUCCEEDED(pObject->Method((ULONG_PTR) (BYTE*) pnData)); A COM method returns a pointer to data – pretty straightforward,…
False assertion failure in DirectShow BaseClasses transip.cpp, in CTransInPlaceFilter::Copy: ASSERT(lDestSize >= lSourceSize && lDestSize >= lDataLength); […] CopyMemory((PVOID) pDestBuffer, (PVOID) pSourceBuffer, lDataLength); The code asserts on “lDestSize >= lSourceSize” which is true in most cases, but it does not have or need to be true. The code below copies just lDataLength bytes and assertion on…
Over long time I used an automatic build incrementer add-in for Visual Studio and C++ projects, which proved to be helpful. Having increments in file information, the binaries were easy to identify. It was easy to find a matching symbol information etc. Long story short, a tool like this has been a must. The add-in…
In one of the earlier posts I mentioned a problem with registration-free COM dependency setup up by Visual Studio as a part of build process. This post is about the tool that offers an alternate solution for the problems, and also gives more: standalone, independent from build, addition/removal registration-free COM links automation of registration-free COM…
Overview DirectShow filters pass media samples (portions of data) through graphs and details of how the streaming happens exactly is important for debugging and troubleshooting DirectShow graphs and development. A developer needs clear understanding of parts of streaming process, importance of which increases with multiple streams, threads, parallelization, cut-off times, multiple graphs working simultaneously. Details…