To enable Image and Video Manager to deliver the best quality derivative videos to your customers, we recommend that your original pristine videos have certain characteristics. Please note that these are only general guidelines.

Container format

High-quality videos in web-compatible progressive download formats such as MP4, MOV or WebM.

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MP4 is recommended as pristine video, as it's widely supported
Formats such as HLS or MPEG-DASH are not supported using Video Manager. Instead, we suggest using Akamai Adaptive Media Delivery as a service to deliver adaptive bitrate streaming.

Upon failover or until the video is optimized, the pristine video will be delivered to end users (unless a placeholder video is being used). For this reason, the video must already be in a web-compatible format.

Codec

High-quality videos in h264, h.265, vp8, vp9 format.
Audio Codec: aac, mp3, opus, vorbis

Quality

High quality and high bit-rate videos.
Keep in mind the file size limitation of 256 MB.

Image and Video Manager performs video optimization as an offline process. The first request for any video URL will serve the pristine video and queue the video for processing. Subsequent requests will also serve the pristine video until derivative video processing is complete. As an alternative, you can configure a placeholder video that will play until the offline process is complete.

Transparency

Video transparency is not supported.

Dimensions (resolution)

Videos dimensions of 1920x1080 or less.
If you know the largest video dimensions you will deliver to end users, use those exact dimensions for your pristine videos (there is no advantage to a pristine video with a width of 10,000 px if you will never display videos at widths greater than 1920 px).
4K video is not supported.
The maximum total pixel area that is supported is 3,686,400 pixels. Videos with a pixel area greater than this will not be optimized.

File size

Less than 256 MB.

Length

Less than 5 minutes

Sample frame rate

Less than 60.00 Hz

Video and audio streams

Provide video containers with a single video (and optionally a single audio track).
All other streams will be removed when generating a derivative video.

Closed captions

Use mov_text Streams within a video container persist in derivative videos to preserve closed captions.
Use WebVTT for text files for greater flexibility in multi-language support and for more efficient workflows (HTML5 player supports WebVTT files as do many other video players).