博通(Broadcom)公司的BCM70010 是PC用的AVC/VC-1/MPEG高清音视频译码器,具有高性能和低功耗,支持从QCIF到1920 ×1080的兼容分辨率,能对PC和基于x86的嵌入式应用进行高清H.264,VC-1和MPEG-2视频压缩算法,一些应用包括蓝光盘,无风扇的嵌入机顶式HD播放器,IPTV或其它广播应用.本文介绍了BCM70010的主要特性,方框图以及功能方框图, PCI Mini 卡框图以及BCM70010和BCM70012 芯片组架构图.
BCM70010: AVC/VC-1/MPEG High-Definition Video and Audio Decoder for PCs
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 disks, fanless embedded set-top HD 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 low power consumption of the BCM70010 enable reduced CPU utilization and support for mobile and fanless platform designs. The BCM70010 supports any compliant resolution from QCIF up to 1920 ×1080. The BCM70010 can be used in onboard system designs or module form factors such as a mini-PCI module.
H.264
Complies with the ISO/IEC 14496-10 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 3 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, WMA Pro, 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-tap filter for both horizontal and vertical upscaling and downscaling
Strong Media Security
DES/3DES/AES encryption and decryption engine
Optional support for Digital signature verification for firmware
Low-power HD decode
Designed for notebooks and fanless designs
应用:
Fan-less embedded set-top HD playback
Blu-ray playback on PCs
Protected media playback on PCs
Embedded x86 based IPTV or other broadcast/streaming applications
图1.BCM70010 功能方框图
图2.PCI Mini 卡框图
图3.BCM70010/BCM70012 芯片组架构图
