Monday, September 13, 2010

#Freescale #DSP Tackles Scalable Video Coding

Scalable video codings (SVC) allow a single data stream to contain multiple speeds and resolutions, solving the problem with applications that stutter, skip and crash when they can't keep up with bit rates. Look for SVC to proliferate to cure poor video connection woes over the next three years. RColinJohnson @NextGenLog

Scalable video coding (SVC) enables a single encoder to create a video bitstream that contains several bitstreams that can be separately decoded, by dropping packets, to down-sample for lower spatial resolution, lower temporal resolution or a lower quality, or a combination of the three, as required for specific client viewing hardware.

Here is what EETimes says about SVC: Freescale Semiconductor's embedded DSP targets scalable video coding (SVC) using a customizable H.264/SVC algorithm for its StarCore DSP. The chip maker said its design enables cost-effective media gateways, high-end video conferencing systems and IPTV distribution systems by eliminating the need for Pentium-grade processors for coding...SVC enables a single encoder to create a video streams that contains several sub-bitstreams that can be separately decoded by dropping packets, allowing algorithms to down-sample for lower spatial resolution, slower frame rates and lower quality--or a combination of the three--as required for specific viewing devices. Hence, it is said to solve problems with stutters and stops, choppy frames, delays, blurred motion and broken pictures suffered by traditional video conferencing systems...
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