Thumbnails Generation

This section defines the behavior of the thumbnails generation. Thumbnails are just preview images supported by the DASH spec (check DASH IF IOP v4.3 spec and, in particular, the paragraph 6.2.6 Tiles of thumbnail images). You can see them when scrolling video forward or backwards, just as you see it on YouTube, for example. These settings are used in the Image Extraction Phase.

{
    "Thumbnails": {
        "Generate": true,
        "Width": 64,
        "Height": 64,
        "DurationInSeconds": 5
    }
}

Property	Description	Additional Info	Required?
Generate	Use generation or not. Supported values: true, false.	-	Yes.
Width	Desired thumbnail image width in pixels.	Must be between 24 and 7680 (including). If the value is not set, it will be automatically calculated using the height to maintain the aspect ratio.	No.
Height	Desired thumbnail image height in pixels.	Must be between 24 and 4320 (including). If the value is not set, it will be automatically calculated using the height to maintain the aspect ratio. NOTE: If neither Width nor Height are specified, Thumbnails will be generated using defaults (384x216)	No.
DurationInSeconds	Time between the indivudal thumbnails	For example, if you have a 60-second video and 5 seconds for the thumbnail duration, there will be 12 thumbnails in total. If the value is not set, it will be automatically calculated according to duration of the video. - If duration is less than 1 min: 2 seconds - If durations is between 1 min and 30 min: 5 seconds - If duration is more than 30 min: 10 seconds	No.