linearity 2 means Non-Linear (i.e., Overlay)
Non-linear: an overlay or similar unit shown over or around content while it keeps playing.
When to send it
Send 2 when the player expects a non-linear ad: a banner, text, or small interactive unit shown over or beside the content while the content keeps playing. The VAST document for such a bid carries a NonLinear creative rather than a Linear one.
Buyers need overlay assets, usually static images or HTML, to bid on 2, and many video buyers have none, so placements that accept only non-linear ads see thin demand. Since AdCOM 1.0-202607, overlay and squeezeback placements have their own Video.plcmt values (7 and 8), which often go with linearity 2. It is confused with Video.plcmt 7 itself: plcmt describes the placement, linearity the creative form.
Example
{
"imp": [
{
"video": {
"linearity": 2
}
}
]
}Fields that carry it
Other values in linearity modes
| Value | Name |
|---|---|
1 | Linear |
The linearity modes list page explains the whole list and its common mistakes.