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The State of Video Codecs 2015

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Video compression is the critical enabler of all video streaming, and today we’re at a codec crossroads unlike any that we’ve experienced. Though H.264 remains firmly entrenched as the go-to codec for most digital video transmission and delivery, particularly for streaming, we’ve seen the first deployments of HEVC and VP9, and heard aggressive claims (“technical performance superior to H.265”) from Xiph and Mozilla about the open source ultra HD (UHD) codec Daala. Out of nowhere, RealNetworks demonstrated its RMHD codec, with “HEVC-like image quality” at CES 2015. At the same time, we’re hearing claims of bitrate optimizers that can deliver HEVC-like bandwidth savings to H.264.

So it’s appropriate to start asking questions—for instance, how much more efficiency can you tweak from H.264? How soon will H.265/HEVC become truly essential? Where does VP9 fit into the codec marketplace? Will Daala or RMHD ever become meaningful alternatives to HEVC or VP9? But let’s start with a look backward.

Read more at www.streamingmedia.com

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