Key Performance Indicator (KPI)
Key Performance Indicators (KPI) are metrics that are used to measure the performance of a streaming service.
Read articleTHE STREAMING VIDEO KNOWLEDGE BASE
Explore the world of streaming video.
Definitions, diagrams and technical knowledge, connected.
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Live Streaming Workflow
High level view of video streaming workflow for live content.
Read articleLow-Latency Dynamic Adaptive Streaming over HTTP (LL-DASH)
Low-Latency Dynamic Adaptive Streaming over HTTP (LL-DASH) is an extension of the MPEG-DASH protocol designed to minimize latency in video streaming. While both LL-DASH and DASH are based…
Read articleLow-latency HTTP Live Streaming (LL-HLS)
Low-latency HTTP Live Streaming (LL-HLS) is an extension of the HLS protocol designed to minimize latency in video streaming. While both LL-HLS and HLS are based on similar…
Read articleMean Time To Detection
The average time it takes to detect an issue. In media streaming context, the issue can impact streaming QoS, PQ or QoE.
Read articleMean Time to Resolution
The average time it takes to resolve an issue. In media streaming context, the issue can impact streaming QoS, PQ or QoE.
Read articleMedia Presentation Description (MPD)
Media Presentation Description (MPD) is a manifest file that contains information about content that is streamed using MPEG-DASH. MPD is an XML document that contains metadata that a…
Read articleMicrosoft Smooth Streaming (MSS)
Microsoft Smooth Streaming (MSS) is a technology developed by Microsoft for adaptive bitrate streaming of media content over HTTP.
Read articleMonitoring Techniques
Taxonomy of monitoring techniques.
Read articleMoving Picture Experts Group (MPEG)
Moving Picture Experts Group (MPEG) is a working group of experts that develops standards for audio and video compression and transmission.
Read articleNetwork Time Protocol (NTP)
Network Time Protocol is a protocol used to synchronize the clocks of computers or other devices within a network.
Read articlePerceptual Video Quality
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…
Read articlePerceptual Video Quality (PVQ) Domain Model
Domain model for monitoring of Perceptual Video Quality (PVQ).
Read articlePresentation Timestamp (PTS)
Presentation Timestamp (PTS) is a crucial concept used to ensure the proper synchronization and presentation timing of media segments within an HLS stream. PTS helps maintain the correct…
Read articleProducer Reference Time (PRFT)
Producer Reference Time (PRFT) is a concept introduced in the context of LL-DASH. The PRFT supplies times corresponding to the production of associated media. Among other benefits, this…
Read articleQoS/QoE/PQ/APM
Domain model for the concept of video quality.
Read articleQuality of Experience (QoE)
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,…
Read articleQuality of Service
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,…
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