With Amazon Interactive Video Service (Amazon IVS) you now have the option to filter the specific HLS renditions stored in your S3 bucket as well as control the resolution and pixel count of thumbnail jpeg files while using the auto-record to S3 feature. These controls allow customers to control the amount of data stored while recording to optimize storage costs. Additionally, customers can reduce the thumbnail generation interval down to one second (previously 5 second limit) to have lower latency thumbnails for discovery or post processing use cases. These enhancements apply to Amazon IVS Standard and Advanced channel types without additional cost.
Source:: Amazon AWS