When you send us the raw video Bytes, the video should be less than 50 megabytes.
You don't need to submit HD or 4K quality streams for video moderation to work. 480p quality is usually enough and will work well, while saving bandwidth costs.
Just like images, videos should be at least 50 pixels in width or height. Videos that are smaller might be rejected.
The Synchronous API requires videos to be less than 60 seconds long.
The Asynchronous API works with longer videos. There currently is a timeout built-in that will stop any moderation task after 15 minutes. You can override this setting by using the max_duration parameter to set a new maximum duration (in seconds). This setting can be increased up to 3600 s (60 minutes). If you need to support longer videos please get in touch.