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DirectShow Samples - Win32 apps | Microsoft Docs
https://docs.microsoft.com/en-us/windows/win32/directshow/directshow-samples
DirectShow, specifically Rate Matching, time stamps and ...
https://stackoverflow.com/questions/26684330/directshow-specifically-rate-matching-time-stamps-and-the-directsound-audio-re
Some time later, the capture filter senses Directshow is consuming samples too rapidly, and tries to set a timestamp of some time in the future, which the audio renderer completely ignores. I can, as a test, suddenly tell a sample it must not be rendered until 20 secs in the future (StreamTime() + UNITS), and again the renderer just ignores it.
Media Type Conversions - Win32 apps | Microsoft Docs
https://docs.microsoft.com/en-us/windows/win32/medfound/media-type-conversions
Note that this conversions loses some of the format information (interlacing, frame rate, extended color data). However, it might be useful when saving a bitmap from a video frame, for example. C++. #include <dshow.h> #include <dvdmedia.h> // Converts a video type to a BITMAPINFO structure.
Audio Signal Processing using Directshow(ISampleGrabber)
https://social.msdn.microsoft.com/Forums/en-US/8998e02d-b31b-4603-84d0-aa2d89002613/audio-signal-processing-using-directshowisamplegrabber
From the WAVEFORMATEX structure of the format block, you can retrieve the number of channels (nChannels), the bits per sample (wBitsPerSample) and the sampling rate (nSamplesPerSec), eg stereo (2 channels) 16bits/sample (2 bytes for one channel sample) 44.1KHz. DirectShow Sample times and sample size are quite different, because a DS Media …
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