Glossary

A

ABR

Adaptive bit rate.

Based on the bandwidth conditions and the quality of playback (frame rate), the video engine automatically switches the quality level (bit rate) to provide the best playback experience.

ABR algorithm

The algorithm that determines which bit rate the client bandwidth can handle.

adaptive set

A set of renditions, typically from the same CDN. Within a set, renditions represent different bit rates.

AVE

Adobe Video Engine.

C

cue point

An #EXT tag in an M3U8 file that the PSDK uses for splicing ads into a live stream.

D

DRM

Digital rights management.

F

fragment

One segment of one representation of the media presentation.

H

HDS

HTTP Dynamic Streaming

This technology is from Adobe. The format works in OSMF 1.6 and later. HTTP Dynamic Streaming reproduces much of the functionality of RTMP delivery, providing the publisher a choice in delivery options. The primary benefit that HTTP offers is its ability to cache content, which is important for enterprise customers who deploy internal caching systems to optimize network usage.

HLS

HTTP Live Streaming

This Apple technology is a required format for delivery to Apple devices. It works in HTML5 browsers, AIR for iOS player, and native iOS apps.

I

iframe

An HTML iframe. An inline frame places another HTML document in a frame. An inline frame can be the target frame for links (URLs) defined by other elements, and it can be selected by the user agent as the focus for printing, viewing its source, and so on. The content of the element is used as alternative text to be displayed if the browser does not support iframes.

L

linear video

Linear video is streamed video with advertisements already stitched into the stream. An example of linear video could be a programmed television show.

live video

Live video is video that is being streamed from a live event. Advertisements are typically overlaid on live video. An example of live video could be a live sporting event.

M

main content

Represents the movie or streaming video.

MBR

Multipe bit rate.

N

national ads

Ads that are placed in the main content, but not targeted.

P

PHDS

Protected HTTP Dynamic Streaming.

PHLS

Protected HTTP Live Streaming.

Q

QoS

Quality of service.

R

rendition

One representation of the media presentation.

RTA

Real-time analytics.

S

SBR

Single bit rate.

T

targeted ads

Ads that are served to a user based on received information about that user.

V

VOD

Video on demand.

Video that you watch at your convenience. An example of VOD is a video that you can download on your device from a video publishing service.