Log Object

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<!--TITLE:Log Object-->
 
<!--TITLE:Log Object-->
 
<!--H1:Log Object-->
 
<!--H1:Log Object-->
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<!--DESCRIPTION:Log object for logging the parameters of the DS graph.-->
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<!--DESCRIPTION:An object for logging parameters of DirectShow graphs, filters, streams and  messages from applications/libraries.-->
 
<!--KEYWORDS:Log Logging Trace DirectShow Graph-->
 
<!--KEYWORDS:Log Logging Trace DirectShow Graph-->
 
{{This|products/freeware_filters/Log_object.html}}
 
{{This|products/freeware_filters/Log_object.html}}
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==Overview==
 
==Overview==
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* {{Log Object: Download}}
 
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* {{Contact Support}}
 
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* {{Place Order!}}
 
  
 
The '''Log object''' is great tool for debugging your DirectShow application.
 
The '''Log object''' is great tool for debugging your DirectShow application.
 +
 +
==Features==
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 +
The log object writes to the file:
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* Computer and OS Windows settings.
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* Host application and loaded DLL parameters.
 +
* Messages from filters, DLLs and application.
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 +
Third party applications can use the '''OutputDebugStringA()''' and '''OutputDebugStringW()''' methods to write to a log file.
  
 
==Usage==
 
==Usage==
  
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'''Log object'''
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To prepare files with the studied features and properties, do the following:
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1. Download {{Log Object}} and unzip log_object.<version>.zip to some catalog.
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 +
2. Run Log32_reg.bat or Log64_reg.bat, select the folder and log file name. The setup dialog is shown in Log_register.jpg.
 +
 
 +
3. Register a debug version of the AVObject filter you are checking, or download and install {{Spy Filter}}.
 +
 
 +
3. Run your application or graph (the Debug version of the AVObject filter or the Spy filter must be included in the graph).
  
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1. Download [http://rm.avobjects.com/downloads/133 Log Object] and unzip log_object.<version>.zip to some catalog.<br>
 
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2. Run register.bat. <b>Please, set check box in "Make this copy..." - shown on Log_register.gif.</b> Also - don't forget name of selected catalog for save log file.<br>
 
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3. Run your application or graph.<br>
 
 
4. Zip the log file and send it to us or upload to our [[AVObjects FTP|FTP]].
 
4. Zip the log file and send it to us or upload to our [[AVObjects FTP|FTP]].
  
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Notes:<br>
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<b>Notes:</b>
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- Only debug version of our filters will write the log file. Please make sure a debug version is registered.<br>
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* If you want to register the log object for all users (in the HKEY_LOCAL_MACHINE hive), you should run the batch file with administrator rights. The same for unregistering.
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- 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).<br>
+
* 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).
  
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You can find the path to the 32-bit log object in the following registry key:
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<br>You can find the path to the 32-bit log object in the following registry key:
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    HKEY_CURRENT_USER\Software\_DSTLLOG
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HKEY_CURRENT_USER\Software\_DSTLLOG
 
and to the 64-bit:
 
and to the 64-bit:
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    HKEY_CURRENT_USER\Software\_DSTLLOG64
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HKEY_CURRENT_USER\Software\_DSTLLOG64
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If the log object was registered for all users:
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HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\_DSTLLOG
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and to the 64-bit:
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HKEY_LOCAL_MACHINE\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.
 
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.
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* {{LinkDescription|Video Generator}}
 
* {{LinkDescription|Video Generator}}
 
* {{LinkDescription|Spy Filter}}
 
* {{LinkDescription|Spy Filter}}
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−
==Downloads==
 
−
 
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* Download [http://rm.avobjects.com/downloads/133 Log Object]
 
  
 
==See Also==
 
==See Also==
  
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* [[Log object: Release Notes]]
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* [[Log Object: Release Notes]]
 
* [[Problem Description Guidelines]]
 
* [[Problem Description Guidelines]]
 
* [[AVObjects FTP]]
 
* [[AVObjects FTP]]
  
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==Action Items==
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===Action Items===
  
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* Download {{Log Object}}
 +
* Download {{Spy Filter}}
 
* {{Contact Support}}
 
* {{Contact Support}}
 
* {{Place Order!}}
 
* {{Place Order!}}

Latest revision as of 13:17, 24 March 2025

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.

Features

The log object writes to the file:

  • Computer and OS Windows settings.
  • Host application and loaded DLL parameters.
  • Messages from filters, DLLs and application.

Third party applications can use the OutputDebugStringA() and OutputDebugStringW() methods to write to a log file.

Usage

To prepare files with the studied features and properties, do the following:

1. Download Log Object and unzip log_object.<version>.zip to some catalog.

2. Run Log32_reg.bat or Log64_reg.bat, select the folder and log file name. The setup dialog is shown in Log_register.jpg.

3. Register a debug version of the AVObject filter you are checking, or download and install Spy Filter.

3. Run your application or graph (the Debug version of the AVObject filter or the Spy filter must be included in the graph).

4. Zip the log file and send it to us or upload to our FTP.

Notes:

  • If you want to register the log object for all users (in the HKEY_LOCAL_MACHINE hive), you should run the batch file with administrator rights. The same for unregistering.
  • 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

If the log object was registered for all users: 

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\_DSTLLOG

and to the 64-bit: 

HKEY_LOCAL_MACHINE\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).

See Also

Action Items

Retrieved from "http://wiki.avobjects.com/index.php?title=Log_Object&oldid=15144"
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