> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v23** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/VideoThumbnailEnum.VideoThumbnail).

Enum listing the possible types of a video thumbnail.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v23/enums/video_thumbnail.proto)

| Enums ||
|---|---|
| ## `DEFAULT_THUMBNAIL` | The default thumbnail. Can be auto-generated or user-uploaded. |
| ## `THUMBNAIL_1` | Thumbnail 1, generated from the video. |
| ## `THUMBNAIL_2` | Thumbnail 2, generated from the video. |
| ## `THUMBNAIL_3` | Thumbnail 3, generated from the video. |
| ## `UNKNOWN` | The received value is not known in this version. This is a response-only value. |
| ## `UNSPECIFIED` | The type has not been specified. |