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What to Do If an Error Occurs When Running the oCam Installer
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When installing or running oCam, you may see an error message like the one below:
"Access violation at address XXXXX in module 'oCamXXXX.exe'. Write of address 00401000"
This error usually occurs when an anti-cheat program such as GameGuard is running. GameGuard uses system resources exclusively to protect the game, and this can interfere with the installation or execution of oCam. To resolve this issue, follow the steps below:
1. Completely close the game that is currently running. When the game closes, GameGuard will also close.
2. To make sure both the game and GameGuard have fully closed, open Task Manager (Ctrl + Shift + Esc) and check whether any related processes, such as GameGuard processes, are still running. If any remain, end those processes manually.
3. After GameGuard has closed, try installing or running oCam again.
By following the steps above, you can resolve the conflict caused by GameGuard and install or run oCam normally. If the problem continues, restart your computer and try installing oCam again without launching the game.
Programs
Another helpful tip
How to Record Losslessly Using x264vfw
Before getting started, you must install the x264 codec in advance. If you do not know how to install it, please refer to the Help section.
Click the Codec menu in oCam, then click the External Codec menu item.
Select Use External Codec, choose the x264vfw codec, and then click the Settings button.
Using the default x264vfw settings as a base, change the parts highlighted in the yellow box in the image below as shown.
The following settings need to be changed.
Preset - Ultrafast ( Set this to improve encoding speed. The file size may become larger, but if you choose other options, significant lag may occur. )
Profile - High 4:4:4 ( The default profile may cause quality loss, so change it to High 4:4:4 for lossless encoding. )
Keep input colorspace - Keeps the color space of the internally received input buffer. ( If you use other options, encoding may fail. )
Rate control - Single pass - lossless - Change this for lossless encoding.
Click the OK button to apply the settings.
When recording 64-bit games, the settings are applied to x264vfw64 for 64-bit, so run x264vfw - Configure x264vfw64 from the Start menu and configure it in the same way as shown above.
If you record with the above settings, the video will be recorded losslessly. One important point is that if you want to play back the lossless video without quality loss, you must change the settings in your video player.
Below is how to check a lossless video using PotPlayer.
Run PotPlayer, then click Preferences ( F5 ).
In the Preferences window,
click Video - Color Space/Attributes on the left, then in the Color Space group box on the right, select Convert manually if possible - Default output color space. ( If you do not configure this, even if the recording is lossless, the screen colors may still be altered during playback. )
Click OK, then play the video recorded losslessly.
At this point, press Ctrl + F1 in PotPlayer. As shown below, the output format of the video codec must be displayed as RGB(32 Bits).
Also, in the playback information under the File Information tab, the following properties must match as shown below.
Format profile : High 4:4:4 Predictive@L3
Color space : RGB
Color range : Full
Matrix coefficients : RGB
Please note that Windows Media Player does not play this properly, and preview thumbnails will not be displayed in Windows Explorer.