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What is Adaptive Bitrate Steaming?

What is Adaptive Bitrate Streaming and why is it so difficult to measure? BUFFERING. And they want the videos to be streamed without interruption or glitches in the highest resolution possible Consumers want to watch online video anywhere, anytime on any device That's easier said than done Video looks great when streamed at the highest resolution. But, when bandwidth conditions suddenly worsen – like when going from wi-fi coverage to the 3G network – the demands of high resolution video can overload a viewer's connection. This results in buffering and other delays that negatively affect a consumer's quality of experience (QoE) 1) To address this, content delivery networks (CDNS) and video providers are turning to adaptive bitrate (ABR) streaming technologies. Adaptive bitrate streaming detects a user's available bandwidth in real time and calibrates the video stream accordingly, always delivering the best possible picture quality. B 2.436M 1.636M ABR dynamically shifts bandwidth to higher and lower levels based on availability 1.233M 866K 608K E 427K 300K While the concept is generally the same, there are several different flavors of adaptive bitrate streaming technology. Adobe Microsoft HTTP Dynamic Streaming Smooth Streaming HTTP Live Streaming 2608K 427RBOOK 2.436M 1.636M608 608K 66 OK 2.4 M 866 2.436 233 63 27K 608K 427K 300K 2.436M 1.636M 1. B66K36M 2636MO 8K 233M 427K MARBUET 1) 2.436M 1.636M 86GK 608K For Adaptive Bitrate Streaming to work, a video is first encoded at different bitrates to The video player then pulls fragments from the different encodings and inserts them into the stream as bandwidth dictates. accommodate varying bandwidth connections. Each bitrate version is sliced up into tiny fragments – typically 2 to 10 seconds. This results in faster video start times and a continuous, uninterrupted video experience.... ...which makes for happier viewers and content providers It also results in a major measurement challenge, however SWF ABR ABR ABR ABR ABR ABR ABR ABR ABR Not long ago, an entire movie could be measured as a single file. Now, with Adaptive Bitrate Streaming, measuring that same movie in aggregate over a large viewing audience can require analyzing tens of thousands of separate files. Then consider the sheer volume of ABR files coursing over a network with 150 channels. ACKEI The number of fragment files over this network could be in the tens of millions for a single bitrate. ABR ABR ABR ABR ABR ABR ABR ABR ABR ABR Add several more bitrates into the equation and the number of Adaptive Bitrate Streaming files could jump into the hundreds of millions! This level of fragmentation turns the measurement data into a lot of unusable noise. Skytide Insight for Content Delivery Networks separates the signal from the noise by identifying, re-aggregating and reporting on the actual content SKYTIDE assets. Skytide Insight for CDNS can handle the volume and complexity that adaptive bitrate streaming demands and transform it into meaningful reports in minutes. BITRATES

What is Adaptive Bitrate Steaming?

shared by pbhurley on Jul 14
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A helpful primer on Adaptive Bitrate Streaming, how it impacts online video delivery and why it is so difficult to measure.

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