What to Do If the "Cause: failed to avio_open(error=-13)" Error Occurs During Recording
This error may occur because AhnLab V3 or Avast falsely detects oCam as suspicious. Below is a detailed explanation of how to resolve the issue for each antivirus program.
For AhnLab V3, if oCam is being falsely detected, you can resolve the issue by adding the `oCam.exe` file in the oCam installation folder to the scan exclusion list.
1. Open the AhnLab V3 program.
2. Go to the Settings menu and find the 'Scan Exclusions' or 'Exclusion Settings' option.
3. In the 'File/Folder Exclusions' section, click the 'Add' button.
4. Go to the folder where oCam is installed, for example `C:\Program Files\oCam`, and select the `oCam.exe` file.
5. Add it to the exclusion list and save the settings.
6. Run oCam again and check whether recording works normally.
* There may also be a conflict with the anti-ransomware feature.
For example, if drive E is set as a ransomware-protected drive and oCam's save folder is also set to drive E, an error may occur during recording. This happens because the anti-ransomware feature restricts file writing on that drive, preventing oCam from saving the video file.
In this case, keep drive E as a ransomware-protected drive and set oCam's recording save folder to drive C or D instead.
Because drive E is configured as a ransomware-protected drive, file creation and modification are restricted for security purposes, so programs such as oCam are blocked from saving files there. Therefore, the simplest solution is to move the save path to drive C or another unrestricted location.
If you want to continue using drive E, you may also consider temporarily disabling the anti-ransomware setting or adding the oCam executable file (`oCam.exe`) as an exception in the security policy for that drive.
For Avast, if oCam is falsely detected, a pop-up message like the one below may appear. In that case:
1. In the pop-up, click the 'Allow App' button to register oCam as a trusted program.
2. This will remove the error and allow oCam to work normally.
If the pop-up does not appear, you can adjust the allow settings manually:
1. On the Avast main screen, click 'Menu' and then select 'Settings'.
2. Go to the 'Blocked & Allowed Apps' section.
3. Click the '+ Allow App' button and add the oCam executable file (`oCam.exe`).
4. Once oCam has been added to the allowed apps list, save the setting and run oCam again. Recording should then work without any issues.
As an alternative, you can also disable part of the protection feature:
1. Open the 'Protection' menu on the Avast main screen.
2. Find the 'Ransomware Shield' option and turn it off.
3. Disabling Ransomware Shield may resolve the error related to oCam.
You can choose and apply whichever method is more convenient. If the problem continues even after changing the antivirus settings, it may also help to contact AhnLab or Avast customer support.
Today's News/Tips
oCam Advanced Settings - Mouse Cursor Effects - Cursor Size
oCam is powerful software that offers a variety of settings for screen recording and capture, allowing users to customize the output as needed. In the settings window that appears when you click Tools - Options, the Effects category includes options for adjusting visual effects applied during recording, and among them, the Cursor Size setting is used to adjust the size of the mouse cursor shown in the recorded video. This setting is especially useful when you want to highlight the mouse cursor in tutorials or presentation videos. Below is a detailed explanation of the Cursor Size setting in the Effects category.
Overview of the Cursor Size Setting
The Cursor Size setting adjusts the size of the mouse cursor in the recorded video, and the cursor is displayed enlarged according to the value set by the user. This setting does not affect the size of the mouse cursor shown on the actual computer screen. It applies only to the recorded video or captured image. This allows users to keep their working environment unchanged while improving cursor visibility in the video.
Adjusting Cursor Size
Cursor Size is set to 1 by default, which means the original mouse cursor size. If the user changes this value, the cursor size is adjusted as follows:
2: The cursor is enlarged to 2 times the original size.
3: The cursor is enlarged to 3 times the original size.
...: In this way, the cursor size increases proportionally according to the setting value, and it can be set up to 10, which displays it at 10 times the original size.
For example, if the cursor size is set to 5, the mouse cursor will appear 5 times larger than the original size in the recorded video, making it easier to highlight mouse movements and helping viewers identify the cursor position more easily. This feature is especially effective in instructional videos, software tutorials, or any situation where detailed clicking actions need to be shown.
Features and Notes
Applies only to recorded videos: The Cursor Size setting does not affect the cursor size on the actual computer screen. The mouse cursor you see while working always remains at its original size, and the enlarged cursor is applied only to the final output, such as the recorded video or captured image.
Visual emphasis: If the cursor size is set larger, the mouse cursor becomes more noticeable in the video, making it easier for viewers to follow important actions or click locations. For example, it is useful when showing how to click a specific button in a complex software interface.
Avoid excessive enlargement: If the cursor size is set too large, such as 8 to 10 times, it may cover other elements on the screen or reduce the overall neatness of the video. It is therefore important to choose an appropriate size based on the purpose of the content and the viewing environment.
Usage Tips
The Cursor Size setting can be used strategically depending on the purpose of the video. For example, when creating online lectures or YouTube tutorials, it is a good idea to set the cursor size to 3 to 5 times larger so viewers can clearly recognize mouse actions. On the other hand, in gameplay videos where the cursor is not a major element, using the default value of 1 or only slightly enlarging it to 2 or 3 may be more appropriate. After changing the setting, it is recommended to make a short test recording to check whether the cursor size fits well with the overall balance of the video.
Also, when used together with other oCam settings, such as the Include Cursor in Recording option in the Recording - General tab, you can adjust both whether the cursor is included and its size at the same time for more flexible customization. For example, if you include the cursor and set its size to 4 times larger, you can emphasize important actions for viewers while still keeping the video clean.
The Cursor Size setting in the Effects category of oCam is a simple but powerful visual tool that plays a major role in improving the readability and effectiveness of videos.