AR Video

Using Kivicube's Video Conversion and Compression Service

Specifications:

• Supported File Formats: mov / mp4 / avi / webm / wmv / mpeg / mpg / 3gp / ogv / mkv / m4v / fv / ts / f4v / 3g2

• File Size Limits:

  • Free: up to 30 MB

  • Starter : up to 50 MB

  • Pro: up to 200 MB

  • Enterprise: up to 200 MB

Advantages

	Advantages	Description
1	Compression produces smaller, high-quality videos, which helps mitigate slow loading performance.	Kivicube applies high-quality video compression that keeps the video clear and sharp while significantly reducing file size. This results in faster downloading and loading, improving overall performance.
2	High compatibility to prevent playback failures or unexpected behavior	Kivicube performs compatibility processing on videos to prevent issues such as playback failure, missing visuals, missing audio, or stuttering on web platforms or WeChat Mini Programs.
3	The converted output is more compliant and performance-optimized.	The platform normalizes uploaded videos to ensure compatibility with web and WeChat restrictions, preventing upload failures caused by unsupported formats or specifications.
4	Auto Remove Black Borders	Removes black borders caused by incorrect export settings.

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2. Upload Video Directly

Specifications:

• Supported File Format: MP4

• File Size Limits:

  • Free: 30 MB

  • Starter: 50 MB

  • Pro : 200 MB

  • Enterprise: 200 MB

• Supported Video Codec: H.264

• Supported Audio Codec: LC-AAC

• Maximum Video Dimension:

  • Long edge must not exceed 1920 px

  • Recommended long edge: 1280 px or below

• Video Dimensions Must Be Even Numbers (Width and height cannot be odd.)

• Avoid Full-Frame Pure-Black Frames, especially at the beginning of the video.

  See details for more information.

• Video Level Requirement: Must not exceed Level 5.2

• Video Profile Requirement: Must not exceed High Profile

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How to Convert a Video

Online Video Conversion Tool

https://convertio.co/zh/mp4-converter/

Choose the Video

Set the Video parameters

Start converting th video

More Settings

Convertio supports more setting, please refer to below:

	Topic	Description
1	Trim	Set Start and End Times to Trim the Video
2	Resize	Recommended: Longest Side ≤ 1280, Custom Sizes Allowed
3	Frame rate	Recommended: 30fps; 25fps or Lower Can Be Used to Reduce Video Size
4	Bitrate	Can Be Lowered to Reduce Audio File Size
5	Audio Channel	Can be Set to Mono (1.0) to Reduce File Size
6	Frequency	Recommended : 22050 Hz.
7	Volume	Increase or Decrease Volume

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Convert with Adobe Media Encoder

Download software:

Recommended: Adobe Media Encoder https://www.adobe.com/cn/products/media-encoder.html

Note: You may use other video conversion tools, but be sure to test playback on both Android and iOS after uploading.

Add Video Files to Conversion Queue

Choose H.264

Video Setting

Click Preset Match Source - High Bitrate to open the settings window. Disable audio export if not needed.

Bitrates Setting

You may increase this value appropriately based on the desired clarity.

Basic Settings

It is recommended that the long side of the video does not exceed 1280.

Audio Settings

You may adjust the sampling rate, quality, channels, and bitrate as needed to reduce the file size.

Start Converting

After the settings are completed, the preset will be shown as “Custom”. Click the button in the upper-right corner to start the conversion.

Once the conversion is successful, the video will appear in the specified output path.

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其它推荐的视频转换工具

System	Software
macOS	HandBrake: https://handbrake.fr/downloads.php
Windows	HandBrake: https://handbrake.fr/downloads.php
Windows	ShanaEncoder: https://shana.pe.kr/shanaencoder_download

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Notes:

How to Ensure the Video Does Not Contain Completely Black Frames

Videos recorded directly from a camera typically do not contain fully black frames. Such issues usually occur during post-production or editing.

Example 1:

Avoid using pure black frames during editing. Use your video editing software to trim unnecessary segments.

Example 2:

Precautions when using After Effects (AE).

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The operation is not supported

The error “The operation is not supported.” usually occurs when:

• The Video Level is higher than 5.2, or

• The Profile is higher than High.

Best Practices:

• Ensure the Longest Side Does Not Exceed 1920

• Use the recommended tool for conversion and set the level to “auto”.

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Set an Appropriate Resolution

If the video is displayed full-screen, it is recommended to set the short side to 720px.

For half-screen display, adjust according to your actual needs. For example:

• If you want the video width to be half of the screen width, set the source video width to 360px.