Video compression

Broadcom today announced a video decoder/audio processor chip that supports H.264 advanced video compression technology.

Broadcom’s BCM7411 is a new video decoder/audio processor chip that supports H.264 High Profile specification, which incorporates advanced compression tools such as 8 x 8 transforms and dynamic quantization matrices.

Also known as MPEG-4 Part 10/Advanced Video Coding (AVC), the H.264-based compression technology significantly reduces the bandwidth required to deliver high definition (HD) and digital video content over service operator networks and to store HD media on conventional DVDs and system hard disks.

The BCM7411 can operate as a single-channel high definition (HD) decoder or a dual-channel standard definition (SD) decoder; in addition to H.264, it supports MPEG-1 and MPEG-2 video decoding, making it suitable for both broadcast and packaged media video applications.

A programmable audio processor in the BCM7411 incorporates a multi-standard audio decoder core, supporting MPEG-4 high-efficiency AAC (AAC+), MPEG-4 AAC (ACC-LC), Dolby Digital Plus (Enhanced AC3), Dolby Digital (AC3), MPEG-1 Layer I, II, III (MP3) and pulse code modulation (PCM). The audio decoder also supports compressed audio pass-thru to a Sony/Philips digital interface out and PCM audio mixing.

It also incorporates a video post processor as well. The processor supports dual channels, horizontal and vertical scaling, deinterlacing, cropping and chroma unsampling, and 3:2 pull-down and on-screen display.

The processor is available today in sample quantities and is expected to be available in production quantities in the first quarter of 2005.

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