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Using the Sample Grabber - Win32 apps | Microsoft Docs
https://docs.microsoft.com/en-us/windows/win32/directshow/using-the-sample-grabber
The Sample Grabber filter is a transform filter that can be used to grab media samples from a stream as they pass through the filter graph. If you simply want to grab a bitmap from a video file, it is easier to use the Media Detector (MediaDet) object. See Grabbing a Poster Frame for details. The Sample Grabber is more flexible, however ...
c# - How do I use SampleGrabber to build a spectrum ...
https://stackoverflow.com/questions/4595165/how-do-i-use-samplegrabber-to-build-a-spectrum-visualizer-for-audio
Yes, my graph is completely working. If the information is needed, I have a graph that takes a source from a network, and plays it locally. It is as followed: Source->demux->audio/video decoders->inf pin tees->renderers. The graph …
Sample Grabber Filter (Qedit.h) - Win32 apps | Microsoft …
https://docs.microsoft.com/en-us/windows/win32/directshow/sample-grabber-filter
The Sample Grabber filter provides a way to retrieve samples as they pass through the filter graph. It is a transform filter with one input pin and one output pin. It passes all samples downstream unchanged, so you can insert it into a filter graph without altering the data stream. Your application can then retrieve individual samples from the ...
Chapter 11: Using the Sample Grabber Filter | Programming ...
https://flylib.com/books/en/4.260.1.60/1/
First, the Sample Grabber provides a mechanism with which on-the-fly analysis of a media stream can be performed. You can peek into a stream as it flows across the filter graph. For example, you might want to get audio levels from an audio track, so you could track the loudest sounds in …
SampleGrabber: Audio samples spaced 0.5 seconds apart
https://social.msdn.microsoft.com/Forums/en-US/5d11ebda-fc4e-4675-b309-de9a31d4f96a/samplegrabber-audio-samples-spaced-05-seconds-apart
I know this sounds crazy. Let me explain the issue. I have set up sample grabber to get raw audio data from microphone. It is kinda working. But in my callback function, I see that the audio samples arrive at approximately 0.5 seconds apart. There is audio data in the sample. But I wonder why I ... · So it looks good for me - you are receiving buffers ...
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