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News Release from: Stretch | Subject: H.264 SVC
Edited by the Electronicstalk Editorial
Team on 11 March 2008
Codec support cuts system costs
H.264 SVC creates a single encoded video stream that can be "scaled" to support varying levels of resolutions, frame rates and quality.
Stretch now supports the scalable video codec (SVC) extension to the H.264 video compression standard Commonly referred to as H.264 SVC, this emerging standard enables access to video footage irrespective of network bandwidth or decoding capability of the client device and allows active management of video storage, dramatically reducing system costs
This article was originally published on Electronicstalk on 12 Mar 2007 at 8.00am (UK)
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The dramatic rise in usage of video surveillance coupled with adoption of network-based surveillance solutions has created demand for the ability to view surveillance footage anywhere, any time.
The varying bandwidth of connections and the differing viewing capabilities, from security centres to mobile phones, has required a complex mix of different video encoding standards, resolutions, frame rates and quality levels.
H.264 SVC solves this complexity issue by creating a single encoded video stream that can be "scaled" to support varying levels of resolutions, frame rates and quality.
This allows the video to adapt to differing bandwidth and viewing capabilities throughout a networked system without resorting to expensive transcoding solutions.
Albert Wang, Chief Technical Officer at Stretch, said: "The Stretch implementation of H.264 SVC allows us, from a single source, to easily derive multiple streams of different frame rates and resolutions and to send the streams to conventional H.264 decoding devices".
"This capability allows Stretch-based installations to embrace a multitude of conventional surveillance decoders as well as mobile devices such as PDAs and even mobile phones".
H.264 SVC's "layered" approach to video scaling allows recorded video to be reduced in size and quality over time, but preserving a baseline of video information.
In this way, storage requirements can be reduced for older video and more recent video footage can be maintained at a higher level of quality.
In this way, overall storage costs can be reduced.
The Stretch H.264 SVC implementation is applicable to both IP cameras and digital video recorders (DVRs) and will be integrated as part of its Intelligent Encoder suite of video and audio codecs, which currently supports MJPEG, MPEG4 and H.264.
Stretch will demonstrate the capabilities of H.264 SVC at the ISC West trade show in Las Vegas in April 2008.
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