How to Resize the Recording Area in oCam
The main screen of oCam includes various buttons designed for intuitive use of its features, and among them, the "Resize" button is one of the key functions for customizing the recording area. When you click this button, a clean and user-friendly pop-up menu appears. This menu provides a variety of options for flexibly adjusting the size and resolution of the recording area, making it easy for everyone from beginners to IT professionals to configure settings that best fit their working environment.
When the pop-up menu opens, the sizes shown represent the resolution of the recording area, and clicking a menu item immediately adjusts the recording area to the selected resolution. For example, if you choose a standard resolution such as 1920x1080 (Full HD) or 1280x720 (HD) under the YouTube category, the oCam recording frame will be set to that size and recording will proceed at the exact resolution. oCam supports resolutions up to 4K (3840x2160) by default, making high-resolution content creation possible. In particular, when using the MPEG-4 codec, it supports resolutions up to 8K (7680x4320). This is especially useful for professionals who need high-quality video production, such as recording high-resolution gameplay footage or performing professional video editing work.
The pop-up menu also includes a "Full Screen" menu item. Clicking this option automatically sets the recording area to cover the entire monitor screen. If you press the Record button in this state, the whole screen will be recorded, which is especially useful when capturing the entire desktop, presentations, or full-screen gameplay. Full Screen mode is the best choice when you want to record all on-screen content easily without setting a separate area.
Another powerful feature is the "Find Recording Target Window" menu item. When you click this option, the window under the mouse pointer is highlighted with a red rectangular box. If you move the mouse over the window you want and click it, that window area is automatically set as the recording area. This feature is very useful when you want to record or capture only a specific window, such as an application or browser window. For example, when creating software tutorials or recording the workflow of a specific program, you can capture only the necessary window cleanly without unnecessary background, greatly improving work efficiency.
Finally, the "Custom Size" menu item is an option that allows users to control the size of the recording area more precisely. Clicking this menu opens a separate input window, where users can directly enter the horizontal and vertical pixel values of the desired resolution to set the recording area. This feature is especially useful when a non-standard resolution or a custom size is needed for a specific project. For example, it can be used when you need to match the resolution requirements of a video for upload to a social media platform or record at a size optimized for a specific device.
With these various options, oCam's resize feature makes it possible to set the recording area flexibly and precisely according to the user's needs. The ability to set the desired resolution and area with just a few clicks clearly shows oCam's intuitive design and efficiency. In addition, you can further optimize your workflow by adjusting the save path, file naming rules, or detailed codec settings in the Settings menu. If you want high-quality video or need to capture a specific window, we recommend actively using oCam's resize feature to get the results you want with ease.
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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.