Spy Filter
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==Overview== | ==Overview== | ||
| − | + | '''Spy Filter''' is a great tool for debugging DirectShow application and interaction between filters. | |
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==Features== | ==Features== | ||
Revision as of 12:15, 22 April 2023
This page is a copy of the original page on the AVObjects' web site and can also be viewed here.
DirectShow filter for tracing (together with the log object) connections, positioning, data flow, etc, to save input Direct Show samples to file(s).
Overview
Spy Filter is a great tool for debugging DirectShow application and interaction between filters.
Features
Writes to the log file (with Log Object):
- Connection and allocator parameters
- Graph structure
- Input DirectShow samples
- Seeking (IMediaSeeking), flushing, NewSegment, EndOfStream, etc.
Saves input DirectShow samples:
- As a binary file(s) with the connection media type at the beginning of the file and one or more samples in the file.
- As RGB or YUV bitmap (.bmp) file(s) depending on connection media type.
Usage
To check various properties of video, audio, and other streams, do the following:
1. Download and install Spy Filter.
2. Download and install Log Object.
3. Insert Spy filter into the DirectShow graph between the filters of interest (connect the input and output pins).
4. Run, stop and close DirectShow graph.
5. Check the log file created by Spy filter with the Log object.
Related Products
- Log Object - Log object for logging the parameters of the DS graph.
- Video Generator - DirectShow filter for generating a video stream with the necessary parameters, for creating video frames for checking chroma key, for outputting an audio stream synchronized with video, and much more.
