Log Object

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This page is a copy of the original page on the AVObjects' web site and can also be viewed here.

An object for logging parameters of DirectShow graphs, filters, streams and messages from applications/libraries.

Overview

The Log object is great tool for debugging your DirectShow application.

Usage

Log object

1. Download Log Object and unzip log_object.<version>.zip to some catalog.
2. Register Debug version of checked AVObject filter or download and install Spy Filter. 2. Run register.bat. Please, set check box in "Make this copy..." - shown on Log_register.gif. Also - don't forget name of selected catalog for save log file.
3. Run your application or graph.
4. Zip the log file and send it to us or upload to our FTP.

Notes:
- Only debug version of our filters will write the log file. Please make sure a debug version is registered.
- Please remember to unregister the log object after use. Log files can be VERY large (up to hundreds of GB) if the option “Add new log to the end of the old file” is selected (default option).

You can find the path to the 32-bit log object in the following registry key:

   HKEY_CURRENT_USER\Software\_DSTLLOG

and to the 64-bit:

   HKEY_CURRENT_USER\Software\_DSTLLOG64

These keys have subkeys with paths to log32.dll and log64.dll. Also, these subkeys have a "Log" parameter with the value: path to the log file and other parameters.

Related Products

  • 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.
  • Spy Filter - DirectShow filter for tracing (together with the log object) connections, positioning, data flow, etc, to save input Direct Show samples to file(s).

Downloads

See Also

Action Items

Personal tools