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Qualcomm shows horsepower of next-gen H.265 video

The next-gen video compression technology shrinks video by 40 to 45 percent compared to today's prevailing H.264. But encoding H.265 video takes a long time right now.

Stephen Shankland Former Principal Writer
Stephen Shankland worked at CNET from 1998 to 2024 and wrote about processors, digital photography, AI, quantum computing, computer science, materials science, supercomputers, drones, browsers, 3D printing, USB, and new computing technology in general. He has a soft spot in his heart for standards groups and I/O interfaces. His first big scoop was about radioactive cat poop.
Expertise Processors, semiconductors, web browsers, quantum computing, supercomputers, AI, 3D printing, drones, computer science, physics, programming, materials science, USB, UWB, Android, digital photography, science. Credentials
  • Shankland covered the tech industry for more than 25 years and was a science writer for five years before that. He has deep expertise in microprocessors, digital photography, computer hardware and software, internet standards, web technology, and more.
Stephen Shankland
3 min read
The H.265 video compression technology won't be done until next year, but Qualcomm showed an Android tablet decoding video with the next-gen codec at Mobile World Congress. In a comparison with today's mainstream H.264 codec, H.265 needed almost half the the storage space and network bandwidth for streaming. On average, Qualcomm thinks H.265 will require about 40 percent less capacity.
The H.265 video compression technology won't be done until next year, but Qualcomm showed an Android tablet decoding video with the next-gen codec at Mobile World Congress. Stephen Shankland/CNET

BARCELONA, Spain--H.264 is today's leader when it comes to mainstream video encoding technologies, but it will have to share the stage in 2013 with a successor called H.265 that can squeeze a video into nearly half the file size.

H.264, also known as the Advanced Video Codec (AVC), defines how a video can be compressed for reduced storage requirements and--very importantly given the online video explosion--for streaming across networks. H.265, also called High Efficiency Video Codec (HEVC), uses new techniques to compress video even more.

Qualcomm, a San Diego-based chipmaker that's on the international standards group developing H.265, demonstrated a preliminary version of H.265 video on an Android tablet at the Mobile World Congress show here in Barcelona.

The H.265 codec is likely to gain widespread support, but it and H.264 competes with a royalty-free alternative called VP8 that Google has released. Qualcomm competitor Nvidia has built VP8 decoding support into its newer Tegra 3 chips alongside H.264 support.