Brief
BCM7412
®
AVC/VC-1/MPEG HIGH-DEFINITION DECODER
BCM7412 Block Diagram
•Multi-standard video decoding support for:
•MPEG-2 MP@ML
•MPEG-2 MP@HL
•AVC HP@L3.0 for 480i
•AVC HP@L3.2 720p
•AVC HP@L4 1080i
•AVC HP@L4.1 1080i for Blu-Ray and HD DVD
•VC-1 SP@ML
•VC-1 MP@ML
•VC-1 AP@L3 1080i
•Multi-standard audio decoding
•MPEG2 AAC-LC- Stereo and 5.1
•MPEG4 AAC HE (High Quality)-Stereo (level 2) and
5.1 (level 4)
•MPEG, LI LII, MP3 (MPEG1 layer 3)
•Dolby® Digital Plus with transcode to Dolby Digital
•HD-capable output interface
•BT.656
•HD_DVI Interface for connection to BCM7038
•Video post-processing with scaling, 3:2 pull-down, clipping,
and padding
•HW Still Image Decoder (SID) supporting JPEG, PNG, MNG,
GIF, RLE formats
•H.264/MPEG-4 part 10 decoder
•VC-1 Advanced, Simple, Main decoder
•MPEG-2 decoder
•Programmable audio decoder
•Transport demultiplexer
•Still Image Decoder (SID)
•HD-compatible digital video output port
•Multi-host control/status interface
•DDR SDRAM controller
FEATURES FUNCTIONAL COMPONENTS
APPLICATIONS
•Digital cable, satellite, terrestrial, IP, and DSL set-tops
•HD-DVD and Blu-ray High-Definition DVD players
•DVR (playback)
•Portable multimedia players
H.264/VC-1/
MPEG-2
Decoder
Audio
Decoder
DDR SDRAM Controller
System I/O
GPIO Generic
16-Bit
PCISPI
Still
Image
Decoder
Audio I/O
I2S
S/PDIF
Transport
Layer
Demux.
Video
Post-
Processor
Audio
Out
Audio
In
Digital
Video
Output
Control/Status I/F
DDR
SDRAM
Transport/Program/Elementary Stream Inputs
OVERVIEW
®
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2006 by BROADCOM CORPORATION. All rights reserved.
7412-PB00-R 11/09/06
Broadcom®, the pulse logo, Connecting everything®, and the Connecting everything logo are among the
trademarks of Broadcom Corporation and/or its affiliates in the United States, certain other countries and/
or the EU. Any other trademarks or trade names mentioned are the property of their respective owners.
The BCM7412 Decoder
The BCM7412 introduces the advantages of the H.264 video compression
algorithm to today’s advanced consumer and broadcast applications. The BCM7412
is an AVC/VC-1/MPEG-2 decoder chip capable of full HD real-time decoding.
Broadcom’s H.264 Compression Advantage™ architecture provides three times
the compression power of MPEG-2. Systems incorporating the BCM7412 have
superior image quality, improved system performance, and larger storage capacity
with the reduced bit rates of H.264—also known as MPEG-4 Advanced Video
Coding (AVC). The BCM7412 fully supports the MPEG-2 standard, so that
compatibility with existing media can be maintained.
The BCM7412 supports both HD and SD formats (MPEG-2, H.264 or VC-1) in
real time.
The H.264 Advantage
The H.264 coding standard incorporates innovations and techniques developed
over decades of worldwide research into video compression. The algorithm
produces results far superior to the preceding MPEG standards. H.264 derives
much of its performance gain from complex motion estimation techniques,
integration of an in-loop deblocking filter, and brand-new spatial prediction
operations.
H.264 Support
•Complies with the ISO/IEC 14496-10 specification
•Decoder support for AVC High Profile streams up to level 4.1 with a 40 Mbps
maximum encoded bit rate restriction
•I, B, and P slices
•CABAC and CAVLC entropy decoding
•Field/frame and picture adaptive decoding
•Macroblock adaptive field/frame decoding
•All intrablock and interblock sizes
•Resolutions supported: QCIF up to 1920 × 1088
MPEG-2 Support
The BCM7412 complies with the ISO/IEC 13818-2 specification and supports
Main Profile up to high level at 125 Mbps.
VC-1 Support
The BCM7412 supports Advanced Profile VC-1 streams up to 40 Mbps, as well
as Simple and Main, as defined in the proposed SMPTE specification.
Transport/Program Stream Demultiplexer
The BCM7412 accepts transport or program streams depending on the preferred
application, and parses the incoming video, audio, and private data for decoding.
The BCM7412 monitors PCR information in the transport stream to adjust the
frequency of an external VCXO oscillator.
Digital Video Output Port
The BCM7412 provides a configurable digital video output port for a glueless
interface to the BCM7038 or to a variety of video DACs. The output may be
configured for BT.656 and HD-DVI.
Still Image Decoder (SID)
The SID still-image decode accelerator operates autonomously, with its own
general-purpose RISC processor that handles image headers, depacketization, and
input/output DMA. It supports JPEG, PNG, MNG, GIF, RLE formats
System Control/Status Interface
The BCM7412 is intended for use as a peripheral system and requires a
controlling agent to configure and monitor its operation. The following interfaces
are supported:
•PCI 32-bit interface
•Generic 16-bit host interface
•SPI serial and GPIO interface
BCM7412 Specifications
Stream
Input
Buffer
CABAC
CAVLC
MPEG-2
VLC
H.264
Programmable
Parser
MPEG-2, VC-1
Programmable
Parser
Motion
Compensation
Spatial
Prediction
Image Reconstruction
MPEG-2
Inverse
Transform
H.264
Deblock
Digital
Video
Output
32-Bit
RISC
Video
Output
H.264,
VC-1 or
MPEG-2
Coded
Stream
H.264 Inverse
Transform
VC-1
VLC
VC-1
Inverse
Transform
Video
Output
H.264,
VC-1, or
MPEG-2
Coded
Stream
Image Reconstruction
CABAC
CAVLC
MPEG-2
Inverse
Transform
H.264
Deblock
Digital
Video
Output
Stream
Input
Buffer
Motion
Compensation
H.264 Inverse
Transform
Spatial
Prediction
VC-1
Inverse
Transform
H.264
Programmable
Parser
MPEG-2
VLC
MPEG-2, VC-1
Programmable
Parser
VC-1
VLC
32-Bit
RISC
Parameter Value Unit/Description
Logic supply 1.2 V
SDRAM I/O supply 2.6 V
I/O supply 3.3 V
Maximum power dissipation 2.5 W
Operating temperature 0 to 70 °C
Storage temperature –30 to +125 °C
Package Information
Package type 336-pin Ball grid array
Package size 27 × 27 mm
