Live Streaming Workflow
High level view of video streaming workflow for live content.
High level view of video streaming workflow for live content.
Measure of underlying technical aspects or characteristics of media streaming (ITU.T P.10 item 6.212), including: performance, availability. Poor QoS can impact PVQ and/or QoE. In contrast to QoE, QoS is an expression of the system’s various technical characteristics including: network performance (e.g. packet loss, e.g. network jitter, e.g. bitrate, e.g. . . . Read more
Quality of Experience is a measure of overall delight or annoyance of viewer’s media streaming experience (ITU.T P.10 item 6.209). Many factors can impact QoE, including: poor PVQ, poor QoS, poor application performance. In contrast to QoS, QoE is an expression of the end-viewer’s overall sentiment regarding the usage of . . . Read more
Measure of visual quality of video content as perceived by viewers. Poor PVQ can impact QoE. Poor QoS can impact PVQ. The perceived video quality can be evaluated by computers based on mathematical models in laboratory or production settings (see Objective Video Quality) or based on human observation in informal . . . Read more
HTTP Live Streaming is an Apple standard for ABR media streaming using fMP4 or MPEG-TS containers and H.264 or H.265 video codecs.
Video compression standard, published in 2013, with the goal to succeed AVC/H.264 by reducing bitrate up to 50% while maintaining the same perceptual video quality (PVQ).
Encoded Bitrate is the bitrate of the compressed (i.e. during ABR encode/transcode) audio or video media objects, each Bitrate level representing different quality levels in ABR. The concept of Encoded Bitrate is inherent in various ABR-related definitions: e.g. CMCD br key, e.g. HLS Playlist Variant Stream BANDWIDTH parameter, e.g. DASH . . . Read more
Hardware or software that encodes or decodes a data stream (e.g. audio, video, closed captions).
Common Media Application Format (CMAF) is an Apple-Microsoft standard aiming to simplify workflows by defining concurrent use of multiple ABR methods (e.g. DASH, HLS) while using one set of audio and video media files.
Video compression standard, published in 2004, with the goal to succeed MPEG-2/H.262 by reducing bitrate up to 50% while maintaining the same perceptual video quality (PVQ).