博通(Broadcom)公司的BCM70010是高清视频/音频译码器,为下一代标准和高清晰H.264, VC-1和MPEG-2提供了视频压缩算法,是完全高清的实时译码,支持高达1920X1080的QCIF,适用于PC和x86嵌入式应用,包括Blu-ray" 和HD DVD盘,无风扇嵌入式机顶盒(STB)播放器,IPTV或其它广播应用.本文介绍了BCM70010的主要特性, 方框图和系统应用方框图.

HIGH-DEFINITIONADVANCED VIDEO/AUDIO DECODER

The BCM70010 introduces the advantages of next-generation standard and high-definition H.264, VC-1, and MPEG-2 video compression algorithms to PCs and x86 based embedded applications. Some applications include the playback of Blu-ray" and HD DVD disks, fanless embedded set-topHD playback, and IPTV or other broadcast

applications.

The BCM70010 is a single-stream HD AVC/VC-1/MPEG-2 decoder chip capable of full HD real-time decoding. The high performance and lowpowerconsumption of the BCM70010 enable reduced CPU utilization and support for mobile and fan-less platform designs.

The BCM70010 supports any compliant resolution from QCIF up to 1920 × 1080.

The BCM70010 can be used in on-board system designs or module form factors such as a mini-PCImodule.

H.264

Complies with the ISO/IEC14496-10 specification

Support for AVC high profile streams up to level 4.1 with a 40 Mbps maximum encoded bit-rate restriction

CABAC and CAVLC entropy decoding

Macroblock adaptive field/frame decoding

VC-1

Complies with the SMPTE 421M-2006 specification

Supports advanced profile level three with a 40 Mbps maximum encoded bit-rate restriction.

Supports simple and main profile decoding

MPEG-2

Complies with the ISO/IEC 13818-2 specification

Supports the main profile up to high level at 81 Mbps

Multistandard Audio Decoding

AC3; AAC; Mpeg-1 Layer I, II, and III (MP3); WMA; WMA Pro; DD+; DTS; and others.

Strong Media Security

The BCM70010 incorporates a security processor that allows host player software to send encrypted video elementary streams or A/V transport streams to be decrypted and decoded via the BCM70010.

Coupled with the optional companion chip (BCM70012) additional security features like digital signature based firmware verification, HW based bus encryption, as well as unique hardware keys can be enabled.

This allows the BCM70010 module to securely authenticate with the playback software and maintain integrity of premium media content.

主要特性:

Multi-standard HD/ED/SD video decoder

up to H.264/AVC HP at L4.1 1080i, 40 Mbps

up to SMPTE VC-1 AP at L3 1080i, 40 Mbps

VC-1 Simple and Main Profile (WMV9)

MPEG-2 MP @ ML

MPEG-2 MP @ HL

Multi-Standard HD Audio Decoder

MP2, MP3, AAC-HE, AAC-LC, DD, DD+, MLP, WMA, WMApro, DTS, DTS-HD support available

Uncompressed Video Output

YUV 4:2:0/4:2:2 (UYVY)

NV12/YUY2 YCbCr Format Support

BT.656/BT.1120 - compliant YCbCr 4:2:2 output

QCIF to 1080p support

Integrated 16-phase, 5-tapfilter for both horizontal and vertical upscaling and downscaling

Strong Media Security

DES/3DES/AESencryption and decryption engine

Optional support for Digital signature verification for firmware

Low-power HD decode

Designed for notebooks and fan-less designs

应用:

Fan-less embedded set-top HD playback

HD DVD and Blu-ray playback on PCs

Protected media playback on PCs

Embedded x86 based IPTV or other broadcast/streaming applications

图1.BCM70010方框图

图2.BCM70010系统应用方框图

图3.BCM70010和BCM70012芯片组架构

详情请见:

http://www.broadcom.com/collateral/pb/70010-PB01-R.pdf