Adobe HTTP Dynamic Streaming (HDS) is the best way to deliver multi-bitrate content over HTTP to Adobe Flash Player or Adobe AIR. Adobe HDS provides all of the capabilities required for delivering premium digital video and audio, including intelligent multi-bitrate adaptive logic and robust content protection using Adobe Primetime DRM. Adobe HDS is based on the Fragmented F4V File Format (F4F).
HDS version 3.0 introduces a number of new capabilities designed to work with Adobe Primetime, including trick modes, closed captioning, advanced signaling for advertising and enhanced support for failover and fault tolerance.
The open HDS specification documents how to use the F4F file format and the F4M manifest file format for creating HTTP-based streaming systems for playback in Adobe Flash Player and Adobe AIR. HDS, F4M, and F4F are open, allowing other products and technologies to implement these specifications.
The open F4M specification documents the media manifest file format used with HDS. F4M is an XML-based format used to describe a set of HDS, RTMP, or RTMFP streams to a video player.
Download the HTTP Dynamic Streaming (HDS) specification (PDF, 594 KB)
Download the Adobe Media Manifest (F4M)specification (PDF, 594 KB)