Category: Uncategorized

Enumeration of DirectShow Capture Capabilities (Video and Audio)

The tool appears to be unmentioned here, and this is to fix the problem. DirectShowCaptureCapabilities application enumerates video and audio capture devices and lists their typical DirectShow properties, specifically: Moniker names (including USB identification) Pins and property pages Supported interfaces Formats and capabilities available through IAMStreamConfig interface Video and audio devices The utility allows to save output and…

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PolyTextOut API – Does It Work?

As MSDN says, The PolyTextOut function draws several strings using the font and text colors currently selected in the specified device context. The article also mentions ExtTextOut as a simpler sister function: To draw a single string of text, the application should call the ExtTextOut function. It looks like the API is not so Unicode friendly. Code as simple as PolyTextOut(L”Мама мыла раму”); PolyTextOut(L”Mother…

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IP Video Source: Compatibility Issues

I received a few emails recently with questions about compatibility issues between IP Video Source and other applications. The compatibility issues typically fall into classes: An application is sensitively expecting the device to be real camera, with specific requests, e.g. to be able to change resolution of video capture An application is explicitly requesting that…

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Continuous realloc()

A colleague raised a question that realloc does better than free + malloc because allocated memory block is never being actually shrunk and reallocations to smaller size following by reallocations to larger (but still not larger than one of the previous) do not lead to heap locks and actual underlying heap memory block reallocations. While…

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Website unavailability

Unfortunately, the hosting provider EMC Web Hosting decided to stop service without prior notice and the website was removed without a chance to take a backup and files. Google Cache shows that there was an announcement on the website, if they could at least send an email prior to going offline it would be great.…

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