Delivery Spec: To Amazon FreeVee OLV Video Assets


Ad Serving First party (site served) or third party
Video Format Profile  
Video Codec H.264, MPEG-2, or MPEG-4
Video Format MP4 (Site serving)
Video Dimensions 1920x1080 (640x360 for third party served) minimum
Video Aspect ratio 16:9
Video Minimum duration 6s
Video Maximum duration 120s
Video Recommended duration A duration of exactly 6s, 15s, 20s, 30s, or 60s is recommended. Use of videos outside of these durations may negatively impact your campaign performance. Shorter lengths will drive higher VCR (although scale on 6s may be limited). A 120s duration is also supported.
Video Frame Rate 23.976 (recommended), 24, 25, or 29.97
Video Bit Rate / Constant? 4mbps (2mbps for third party served) - 8mbps (recommended)
Video Bit Depth  
Video Fields  
Video Color Space  
Video Maximum File Size 500MB (site served only)
Video Notes  
Audio Channels Minimum of 2-Channels
Audio Mapping  
Audio Sample Rate 44.1kHz or 48kHz
Audio Codec PCM or AAC
Audio Bitrate 192kbps (128kbps for third party served)
Audio Notes  
Naming Convention Logic  
Naming Convention Example(s)


Naming Convention Notes


About this Specification

Third party serving

Advertisers can use third party video tags from an Amazon certified third party vendor. The tags must be VAST 2 or VAST 3, and may include VPAID 2. We recommend including VAST 2 tags with media files in every campaign to ensure all supply sources can be used, as some sources do not support VAST 3 or VPAID. If a VPAID tag is provided, it has to be VPAID 2.0 JS. VPAID is not supported for Streaming TV ads.


Video viewability should be measured using VPAID tags from one of the approved vendors.

CORS header formatting

In order for JavaScript video players to accept a VAST response, ad servers have to include a Cross Origin Resource Sharing (CORS) header formatted as:

Access-Control-Allow-Origin: <origin header value>
Access-Control-Allow-Credentials: true

Without a valid VAST response, a video creative will not serve on Amazon-owned sites. This ensures a positive experience for Amazon’s customers.

Output / Destination Details


Reference to Workflow Documentation

Change History