# Video labeling

Within the **TEAM PRO** subscription, you get access to our video labeling functionality. 

**Requirements:** To label a video you first need to set up your video- dataset and project.

## Concepts

### Video control bar

The video labeling workspace comes with a new **video control bar**. 

* **Vertical bar:** A vertical bar is representing a *single frame*
* **Geometry line:** Each horizontal line is representing a *geometry*. The colour is the same as you specified in your [label configuration](/documentation/python-api/label-configuration.md).
* **Keyframe:** A *diamond* is representing a single [keyframe](/documentation/label-mode/video-labeling.md#keyframe). 
* **Current frame:** The centre of the video control bar displays the current frame and is highlighted in purple.
* **Slider:** The slider on the bottom shows the current video position. You can also grab the button to change the position

### **Keyframe:**

A keyframe **marks a** **positional change** on your timeline connected to a **specific frame**. It is automatically created as soon as you change the position of a geometry. Please note that classification changes are not marked as a keyframe.

#### Delete a keyframe

You can delete a keyframe by using the context menu (*right-click the keyframe*) and click "Delete keyframe".

![Delete a keyframe](/files/-MWYZLvzrP7AAjO9q2bq)

#### Creating a gap (object covered)

You may want to create gaps if an object is disappearing over several frames. To create a gap, you have to create a keyframe between the desired start- and endpoint of the gap. Then you need to go to the starting point and delete the geometry - the gap is created.

![Creating a gap](/files/-MWch83Lyg44OBddwePb)

### Video specific settings

![Video labeling settings](/files/-MWYXc6jKqDKW4xXVBV2)

#### Default playback speed

To assist your labeling process, the default playback speed is set to **0.25x**. This will help you to check your drawn geometries when the video is played.

#### Interpolation

By default **rectangles** between two keyframes will be **interpolated** by default. This means, that the position and size of the rectangle will be *automatically* calculated/adapted. Please note that interpolations are only visual and will not be reflected in your json export.\
Other geometry types that rectangles (e.g. polygons, points, lines) are not supported yet.

### Video specific shortcuts:

Besides the classic [workspace shortcuts](/documentation/label-mode/workspace.md#shortcuts), you also have video-specific shortcuts for a faster labeling process.

| **Shortcut** | **Description**          |
| ------------ | ------------------------ |
| k            | Play / Pause             |
| ,            | Jump to previous frame   |
| .            | Jump to next frame       |
| j            | Jump 10 frames backwards |
| l            | Jump 10 frames forward   |
| >            | Speed up the video       |
| <            | Slow down the video      |


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