In Odoo 16, you can use the video preview widget to display a preview image of a video file, along with a play button that allows the user to play the video. Here's how you can use the video preview widget in your custom module:

1. Add a new field to your model that represents the video file:

Python:

In this example, we're adding a new Binary field for the video file, as well as a Char field for the filename and a computed Binary field for the video preview image. The video_preview field is computed based on the video_file field using a custom method _compute_video_preview, which generates the preview image for the video.

1. Add a new view for your model that includes the video_preview field and uses the video preview widget:
   XML:
   

In this example, we're adding a new view for the form of the MyModel model that includes a tag with two tags. The first tag is for the video_preview field, and uses the video_preview widget to display the preview image and play button for the video. We're also passing an options dictionary that includes the filename field (video_filename) to use for the video. The second tag is for the video_file field, and includes the filename attribute to use for the filename.

1. Implement the _generate_video_preview method to generate the preview image for the video. You can use a third-party library such as ffmpeg or moviepy to extract a frame from the video and save it as an image. Here's an example implementation using ffmpeg:

python:

In this example, we're using ffmpeg