Adaptive bitrate streaming (ABR)
Adaptive bitrate streaming (ABR) is a video-delivery technique that encodes one stream into a ladder of quality levels and lets each viewer's player switch between them mid-playback, so picture quality tracks the viewer's real bandwidth instead of freezing when the connection dips.
CODT engineers ABR pipelines as part of its audio and video streaming service — live ingest over RTMP, SRT or WebRTC, adaptive bitrate transcoding, and per-title encoding so a talking-head clip is not billed at the same bitrate as fast-motion sport, with perceived quality validated by VMAF scores rather than by eyeballing it. The approach has held up at real scale: the streaming backbone CODT built for Bizzabo delivers studio-quality live events to 50K+ peak concurrent viewers with stream start under 1.5 seconds, and RushTix's ticketed comedy shows hold a 2.4-second median join time with a rebuffer ratio under 0.4% — numbers that depend on the bitrate ladder being tuned to the actual audience and devices rather than left at a fixed default.
