# 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

<table><thead><tr><th width="77.5703125"></th><th width="224.7734375">Advantages</th><th>Description</th></tr></thead><tbody><tr><td>1</td><td>Compression produces smaller, high-quality videos, which helps mitigate slow loading performance.</td><td><p>Kivicube applies high-quality video compression that keeps the video clear and sharp while significantly reducing file size.</p><p>This results in faster downloading and loading, improving overall performance.</p></td></tr><tr><td>2</td><td>High compatibility to prevent playback failures or unexpected behavior</td><td>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.</td></tr><tr><td>3</td><td>The converted output is more compliant and performance-optimized.</td><td>The platform normalizes uploaded videos to ensure compatibility with web and WeChat restrictions, preventing upload failures caused by unsupported formats or specifications.</td></tr><tr><td>4</td><td>Auto Remove Black Borders</td><td>Removes black borders caused by incorrect export settings.</td></tr></tbody></table>

***

## 2. Upload Video Directly

### Specifications:&#x20;

* **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

***

### How to Convert a Video

#### Online Video Conversion Tool

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

**Choose the Video**

![](/files/6kOu9sb2txd0ONS33QOQ)

**Set the Video parameters**

![](/files/clYy0n50GU6L3sKvIhIT)

Start converting th video

![](/files/XLcd9juV3m7EElxpexLm)

**More Settings**

Convertio supports more setting, please refer to below:&#x20;

![](/files/l4K9bml9HlYhRuGAn1GT)

![](/files/qEdzljk3pdRikJ5UGAtL)

<table><thead><tr><th width="113.625"></th><th width="148.00439453125">Topic</th><th>Description</th></tr></thead><tbody><tr><td>1</td><td>Trim</td><td>Set Start and End Times to Trim the Video</td></tr><tr><td>2</td><td>Resize</td><td>Recommended: Longest Side ≤ 1280, Custom Sizes Allowed</td></tr><tr><td>3</td><td>Frame rate</td><td>Recommended: 30fps; 25fps or Lower Can Be Used to Reduce Video Size</td></tr><tr><td>4</td><td>Bitrate</td><td>Can Be Lowered to Reduce Audio File Size</td></tr><tr><td>5</td><td>Audio Channel</td><td>Can be Set to Mono (1.0) to Reduce File Size</td></tr><tr><td>6</td><td>Frequency</td><td>Recommended : 22050 Hz.</td></tr><tr><td>7</td><td>Volume</td><td>Increase or Decrease Volume</td></tr></tbody></table>

***

#### Recommended Video Conversion Tools

<table><thead><tr><th width="113.69921875">System</th><th>Software</th></tr></thead><tbody><tr><td>macOS</td><td>HandBrake: <a href="https://handbrake.fr/downloads.php">https://handbrake.fr/downloads.php</a></td></tr><tr><td>Windows</td><td>HandBrake: <a href="https://handbrake.fr/downloads.php">https://handbrake.fr/downloads.php</a></td></tr><tr><td>Windows</td><td>ShanaEncoder: <a href="https://shana.pe.kr/shanaencoder_download">https://shana.pe.kr/shanaencoder_download</a></td></tr></tbody></table>

***

### 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:**&#x20;

<figure><img src="/files/MONT8fS1BXLTVDD1Rmzv" alt=""><figcaption></figcaption></figure>

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

**Example 2:**&#x20;

<figure><img src="/files/hQvjHB8H7zguHVZQwIGu" alt=""><figcaption></figcaption></figure>

Precautions when using After Effects (AE).&#x20;

***

#### The operation is not supported

<figure><img src="/files/cNxFA6wqMFnrTk7faZ3J" alt=""><figcaption></figcaption></figure>

&#x20;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:**&#x20;

* Ensure the Longest Side Does Not Exceed 1920
* Upload your video at "Converted Video".

***

#### 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.


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs-en.kivicube.com/ar-asset-creation-guide/ar-video.md?ask=<question>
```

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The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.