Apple QuickTime Movie File
File with .mov extension which uses QuickTime File Format (QTFF) multimedia container to store audio, video and metadata.
Read articleTHE STREAMING VIDEO KNOWLEDGE BASE
Explore the world of streaming video.
Definitions, diagrams and technical knowledge, connected.
Showing category: QoS/QoE Clear filter
27 articles
Common Media Application Format (CMAF)
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…
Read articleCommon Media Client Data (CMCD)
Common Media Client Data (CMCD) is a CTA standard (CTA-5004) published in 2020 defining how player clients send playout and error status information to upstream workflow nodes (e.g. CDNs) with…
Read articleCommon Media Server Data (CMSD)
Common Media Server Data (CMSD) is a CTA standard (CTA-5006) published in 2022 defining how Origins and CDNs send status information to downstream workflow nodes (e.g. CDNs, players)…
Read articleDigital Rights Management
Digital Rights Management is the use of keys and certificates to authorize playback of a video stream to a specific user and/or device over IP streaming like OTT.
Read articleDynamic Adaptive Streaming over HTTP
Dynamic Adaptive Streaming over HTTP is an MPEG international standard to enable non-proprietary ABR media streaming using fMP4 containers and any codec format.
Read articleEncoded Bitrate
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…
Read articleEncoder-Decoder
Hardware or software that encodes or decodes a data stream (e.g. audio, video, closed captions).
Read articleFragmented MP4 (fMP4)
Fragmented MP4 (fMP4) is an MP4 container with its media logically partitioned into moof-mdat pairs (fragments). fMP4 can be one .mp4 file (all fragments) streamed using byte-range requests…
Read articleHigh Efficiency Video Codec
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).
Read articleHTTP Live Streaming
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.
Read articleLive Streaming Workflow
High level view of video streaming workflow for live content.
Read articleManifest
A manifest refers to a text file that describes other files that can be fetched as part of Adaptive Bitrate Streaming (ABR). A master manifest is a text…
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 articleMonitoring Techniques
Taxonomy of monitoring techniques.
Read articleObjective Perceptual Video Quality
A Perceptual Video Quality (PVQ) evaluation technique, based on mathematical models, where computer algorithms rate the quality of the video, i.e., video quality is not rated by human…
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 article