How to Fix Severe Lag When Editing Videos in Adobe Premiere
When recording a normal screen with oCam, there is usually no major problem, but when recording games, the average bitrate of the video file may be set excessively high. A high bitrate provides high-quality video, but it can cause severe lag when editing the file in editing software such as Adobe Premiere Pro. To fix this, you need to lower the bitrate. Below is a detailed explanation of how to reduce the bitrate and improve editing performance.
1. Adjusting the Bitrate When Using a Built-in Codec
If you are using oCam's built-in codec, you can reduce the bitrate by lowering the quality setting. Follow these steps:
1. In the oCam main window, click 'Tools' in the top menu, then select 'Options'.
2. In the Settings window, go to the 'Recording' tab and check the 'General' section.
3. In the 'General' section, find the 'Quality' setting and lower the quality by adjusting the slider. The lower the quality, the lower the bitrate, which reduces the file size and decreases lag during editing.
4. Click the 'OK' button to save the settings, then try recording again.
2. Adjusting the Bitrate When Using an NVIDIA Codec
If you are using an NVIDIA hardware codec, you can adjust the bitrate directly. Follow these steps:
1. In the oCam main window, click the 'Codec' menu and select 'Hardware Encoder Settings'.
2. In the Hardware Encoder Settings window, set 'Rate Control' to '1-PASS CBR' (Constant Bit Rate).
3. Lower the 'Average Bitrate' value to a lower setting (for example, 10 Mbps or less). A lower bitrate reduces file size and improves editing performance.
4. Save the settings, restart oCam, and then start recording.
3. Re-encoding with an External Encoder
If you want to reduce the bitrate after recording in high quality without a major loss in image quality, you can record a high-quality video with oCam and then re-encode it using an external encoder program. For example, you can use PotPlayer or HandBrake. The method is as follows:
1. Record the video in your desired high-quality setting with oCam to create the video file.
2. Run PotPlayer or another encoder program, and load the video file recorded with oCam.
3. In the encoder program, re-encode it with a lower bitrate setting (for example, 5 to 10 Mbps) to create a new file.
4. Import the re-encoded file into Adobe Premiere Pro for editing. This method helps reduce file size and editing load while preserving as much of the original quality as possible.
Using the methods above, you can resolve editing issues caused by a high bitrate when recording games. If you are using a built-in codec, lower the quality setting. If you are using an NVIDIA codec, set CBR and a lower bitrate, or create an optimized file through re-encoding to achieve a smoother editing environment in Adobe Premiere. After changing the settings, make a test recording and check the result.
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How to Reduce the Size of Recorded Video Files When Recording Games (NVIDIA Codec)
If you are using the NVIDIA NVENC H.264 codec by default, the recorded file size may be very large.
Click the Codec menu in oCam to check whether you are using the NVENC H.264 codec, as shown below.
In the oCam Codec menu, click Hardware Encoder Settings.
The Hardware Encoder Settings window will appear as shown below. You can reduce the size of the recorded video file by changing the options highlighted in the yellow box.
First, let's look at how to reduce the size of the recorded file using variable bitrate.
( Rate Control must be set to 1-PASS VBR. )
The Quantizer value can be set from 1 to 51.
The lower the Quantizer value, the better the video quality, and the higher the Quantizer value, the lower the video quality.
In other words, the recording quality is defined by the range from the minimum Quantizer value to the maximum Quantizer value.
For example,
If the minimum Quantizer value is 1 and the maximum Quantizer value is 13, the recording quality range is 1 to 13.
If the minimum Quantizer value is 1 and the maximum Quantizer value is 51, the recording quality range is 1 to 51.
If the minimum Quantizer value is 13 and the maximum Quantizer value is 51, the recording quality range is 13 to 51.
In conclusion, to reduce the size of a recorded video file, increasing the minimum and maximum Quantizer values will lower the recording quality and reduce the file size.
You can adjust the Quantizer values depending on your needs, as follows.
If you want to maintain the highest recording quality while lowering the quality at certain points to reduce the size of the recorded video, set the minimum Quantizer value to 1 and set the maximum Quantizer value to a higher number depending on how much you want to reduce the quality.
( Example: Minimum Quantizer: 1, Maximum Quantizer: 30 )
If you want to maintain medium quality while lowering the quality as much as possible at certain points to reduce the size of the recorded video, set the minimum Quantizer to 26 and the maximum Quantizer value to 51.
For reference, the minimum Quantizer value cannot be greater than the maximum Quantizer value.
That is, the minimum Quantizer value <= the maximum Quantizer value.
Caution: If you set both the minimum Quantizer value and the maximum Quantizer value to 1, the recorded video file size will become extremely large, so do not use this setting.
The default values in oCam are a minimum Quantizer value of 1 and a maximum Quantizer value of 13, and we recommend setting them within the following range.
Minimum Quantizer >= 1 and Maximum Quantizer value >= 13
Next is how to reduce the size of the recorded video file using constant bitrate.
Change Rate Control to 1-PASS CBR and then set the average bitrate.
The higher the average bitrate, the better the video quality. The lower the bitrate, the lower the video quality and the smaller the recorded file size.
Finally, there is a method that uses a fixed Quantizer parameter.
Set Rate Control to 1-PASS Fixed Quantizer Parameter.
Unlike VBR, there is no concept of minimum and maximum Quantizer values, and the quality is set using a fixed Quantizer value.