FAQ (36)

How to Use the x264vfw External Codec

oCam supports external codecs (VFW), and here we will look at how to use the x264 codec.


You can download the x264 codec from the site below.

https://sourceforge.net/projects/x264vfw/


Go to the site and click the Download button.



 

The download will start automatically.



On the installation screens, just keep clicking Next.


Accept the license agreement.

 

Specify the installation path. 


The installation is complete.


Click Finish.


After installing the codec, you must restart oCam before it will appear in the external codec list.

After restarting oCam, click the Codec button in the oCam main window, then click the External Codec menu.


Select the Use External Codec checkbox.


From the list, select x264vfw - H264/MPEG-4 AVC codec.


Then click the Settings button to view the detailed codec settings.


The codec settings window will appear as shown below. Since we need to record the screen in real time rather than perform normal video encoding, select Ultrafast in Preset and check the Zero Latency checkbox so that encoding is performed as quickly as possible, then click the OK button.

( This setting method is useful for real-time recording, and you can adjust it as needed depending on your situation. )


After configuring it this way, your recording will use the x264 codec.


* For game recording, if the game you want to record is 64-bit, you must also install the 64-bit version when installing x264vfw ( by default, it is installed automatically unless you change the installation options ). Then run x264vfw - Configure x264vfw64 from the Start menu and configure it the same way as described above.


* The x264vfw settings Keep/Accept only YUV 4:2:0, Keep/Accept only YUV 4:2:2, and Keep/Accept only YUV 4:4:4 are not supported, and recording will fail if you use those settings.


Today's News/Tips

oCam Advanced Settings - Sound

 


oCam is user-friendly software that not only supports screen recording but also allows you to fine-tune sound recording settings, helping you achieve optimized recording for a wide range of audio input environments. In the settings window that appears when you click the "Tools - Options" menu, selecting the "Sound" category on the left lets you check and adjust microphone-related settings. This tab is especially useful for users who need to solve microphone input issues or apply specific audio settings. Below is a detailed explanation of the settings available under the "Sound" category.


Current Microphone Settings

The "Sound" category provides options related to the current microphone settings, and by default, these settings are configured appropriately for most users, so they can usually be used reliably without any changes. In a typical recording environment, both system sound and microphone audio are recorded properly, and the default settings are generally enough to capture high-quality audio. For example, when using microphone input for lecture videos or game streaming, the default settings are sufficient for most needs.


Resolving Microphone Audio Issues

However, in certain situations, especially when using a USB audio interface or advanced audio equipment, you may encounter an issue where microphone sound is played through only one speaker, either the left or the right. This usually happens when the audio input channel settings are not configured correctly. In the "Sound" category of oCam, simple setting adjustments are provided to resolve this issue.


If sound is coming from the left speaker only: Change the microphone input source to "Input 1 (Left Channel)" to fix the problem. This setting correctly adjusts the microphone audio signal when it is focused only on the left channel, allowing balanced output through both speakers.

If sound is coming from the right speaker only: Change the microphone input source to "Input 2 (Right Channel)." This setting adjusts the audio signal coming into the right channel so that it is evenly distributed through both speakers.

These setting changes are especially useful in environments that use USB audio interfaces or stereo input, and they are an essential feature for users who want to optimize audio quality.


Usage Tips

The settings in the "Sound" category are simple, but they are very effective for resolving issues in certain audio environments. For example, streamers or content creators using a USB microphone or audio interface can quickly fix audio channel issues through these settings. After changing the settings, it is a good idea to run a short test recording to make sure the microphone audio is being recorded evenly on both channels. It is also important to adjust the microphone input level properly so that the sound is not too loud or too quiet.


If you are in a normal environment without a USB audio interface, you can usually get stable recording results just by keeping the default settings. However, if you are using advanced audio equipment, adjusting these settings to balance the audio output can be very helpful in improving the overall quality of the video.

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