59.3.3.5 Reducing Memory

To perform the Memory Reduction action from EtereWeb memory using the Windows Media Encoder application, you must set the following parameters:

Memory_cut

Process and Devices
• Basic settings: Compile these fields as the Content Mover chapter explains.
• Destination/Codec: Metadevice and codec of the metafile created due to the cut.
NB: The executable will automatically update the database with the new media once the segment is cut.

Parameters
• Command line: Define the executable (and its parameters) for the cutting operation. Etere provides a default string that can be applied to configure the memory cut action:

EtPartWM.exe id_job=jobID ipchwnd=%0:s "LogFile=%4:s"
id_job: Contains the Job's ID (e.g. '%3:s').
ipcHWnd: The IPC window handle of the caller is used to notify the job's progress (e.g. '%0:s').
LogFile: The name and path of the process log file (e.g. '%4:s').
-noSQLinfo: Use it to avoid writing on the database (i.e. in the "SQL action runtime context" field) additional info regarding the current job, for example, by Etere Web.
NB: To use this application, Microsoft Windows Media Encoder must be installed on the same PC where Etere Data Mover is located.
Moreover, using the environment variables supported by Etere DataMover is possible. Refer to the Supported Runtime Variables chapter for a detailed list of available runtime data.

How to use it
The Memory cut T-workflow takes only a portion of a particular memory file, according to a given SOM and EOM. To perform a Memory Cut operation, follow the next procedure:                                                      
1. Create a 'Memory cut' action on the Content Management Server section,
2. Create a T-workflow based on the previously created action:
Create_the_T-workflow
3. Set on the default T-workflows section the recently created T-workflow to be used for Memory Cut
4. Perform the Memory Cut through the Etere Web Memory Browser:
Request_the_memory_cut                                             
5. A new asset form will be created, and the T-workflow will be launched for this asset form. The new asset form will contain the following data:
- Code: It will have the following format: F_mcN, where F is the name of the video file, _mc is a constant which stands for 'Memory Cut', and N is the sequential number of the Memory cut operation (e.g., cutfile557_mc2),
- Type: MEMC, which stands for 'Memory Cut'.
6. Etere Data Mover will take the T-workflow request and process the Memory cut operation. Please note that to perform this action, the 'ignore not recorded assets' parameter located in the Etere Data Mover tools MUST be disabled; otherwise, the job will not be processed,
7. Once the new video file is created successfully, it will be linked to the new asset form.

Note
Files created by cutting videos can be programmed to be automatically deleted after a certain time just by including into the T-workflow the action blocks: 'Wait [7 days]',  'File Delete ALL' and 'Delete Asset':
File_Delete_ALL_and_Delete_Asset