adaptive streaming

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adaptive streaming

A multimedia transmission technology that adapts to the changing bandwidth of the network and available CPU cycles in the receiving device. It employs video content that is encoded at high, medium and low bit rates with each stream broken into small segments. In order to maintain continuous viewing without momentary periods of no video, as conditions change, adaptive streaming switches to segments with a higher or lower encoding level.

Adaptive streaming generally starts out at the highest bit rate and its primary function is to ensure there is a sufficient number of video frames in the receiving device at all times. If the video buffer is near empty for too long, it switches to a lower bit rate, and if it fills up again quickly, it can return to a higher rate. See buffering.

Over HTTP (Via Port Number 80)
Adaptive streaming uses HTTP as the application protocol, primarily because HTTP requests, which use the #80 port identification, are accepted by all Web servers. See streaming, streaming server and streaming protocols.

References in periodicals archive ?
Thorwirth s presentation, Enabling Watermarking in a Diverse Content Distribution Infrastructure, will showcase his paper that explores the different scenarios for forensic watermarking, and practical solutions for a range of delivery networks, from DVB with one-way communication to adaptive bitrate (ABR) streaming with different integration workflows, on Oct.
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By using intelligent Adaptive Bitrate Distribution algorithms, MultiPoint optimizes live video delivery to different classes of receivers, either over the public Internet or over an organization's private fiber connectivity.
The service is delivered over an IP-based content delivery system that leverages adaptive bitrate streaming technology.
At the same time, the increasing availability of enabling technologies, such as CDNs and adaptive bitrate streaming, means that legacy infrastructure is no longer a deterrent to OTT video and that a consistent single-digit, megabit-per-second DSL connection is enough to support most video streaming activities, he notes.
Adaptive Bitrate Encoding: Squeeze provides optimized performance for all three leading adaptive bitrate streaming platforms: Adobe Dynamic Streaming; Apple HTTP Adaptive Streaming; and Microsoft Smooth Streaming.
SPB TV pays great attention to the stability andquality of the video playback in any network capabilities, so its solutions support all major technologies of adaptive streaming: RTSP, Apple HTTP Live Streaming (HLS), Microsoft Smooth Streaming, Adobe HTTP Dynamic Streaming, as well as MPEG-DASH -a new unified adaptive bitrate standard developed by ISO.
DivX certified devices contain digital rights management technology to enable the secure playback of premium content in these formats via local on-device storage, streaming over a home network using DLNA, or streaming directly to devices using Rovi's own adaptive bitrate streaming technology.
Now with the addition of support for Adobe's HTTP Dynamic Streaming, Unicorn also brings the full power of Unicorn ONCE with cutting edge HTTP streaming and adaptive bitrate technology to Flash-based players.
Vcas for internet TV', integrated with Huawei's Hybrid Video platform, enables combinations of multicast linear delivery with advanced adaptive bitrate streaming video services, while ensuring harmonised rights management for subscribers at home as well as while on the go.
The MPEG DASH standard for adaptive bitrate HTTP streaming is designed for media delivery to a highly diverse set of target devices, platforms and screens, using existing HTTP infrastructures with the potential to be able to effectively manage varying (mobile) bandwidth.

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