DVxpert™ 5120/5140 MPEG Video Codecs for Broadcast-Quality Interactive Video Networking and Communication Applications OVERVIEW The DVxpert ™ 5120 video networking codec from LSI Logic is the industry’s first full-duplex, real-time, MPEG-2 codec engine. It is specifically designed to meet the quality and performance requirements of today’s latency-sensitive enterprise video networking systems. Combining ultra-lowdelay compression technology with the space and cost savings of a singlechip design, the DVxpert 5120 delivers broadcast-quality MPEG-2 video that is far superior to video networking based on H.32x standards. The DVxpert 5120 leverages the MPEG-2 Main Level @ Simple Profile (ML@SP) codec standard to achieve end-to-end delays of less than 100 ms. The DVxpert 5140 is a superset of the DVxpert 5120 that provides several options to the video compression solution for networking. For half-duplex video communications applications where full resolution picture quality is an absolute must (such as distance learning or corporate communications), DVxpert 5140 offers the ability to MPEG- 2 compress video at “full D1” resolution at bit rates from 2 to 10 Mbps. TARGET APPLICATIONS: DVxpert 5120/5140 it the most flexible solution available on the market today: The DVxpert 5120/5140 codec supports a wide range of high-quality • MPEG-2 “Full D1” compression up to 10 Mbps video applications, including: • MPEG-2 “1/2 and 2/3 D1” compression up to 15 Mbps • Video networking • MPEG-2 ML@SP compression/decompression up to 15 Mbps • Professional conferencing • MPEG-1 compression 56 kbps to 5 Mbps • Distance learning • Interactive desktop video 8MB of SDRAM D1 Standard Video Stream collaboration 1Mx16 ECL/TTL Translator TTL/ECL Translator D1 Standard Video Stream NTSC/PAL Encoder S-Video or Composite Output Glueless SDRAM Interface NTSC/PAL Decoder Video In Serial Control Stereo Audio In Audio CODEC • Content creation Video Out PIO PIO DV xpert™ SUM Stereo Audio Out • Surveillance Serial Control CLK 27.5-MHz Oscillator Audio In Audio Out Serial EPROM 0203a S-Video or Composite Input • Satellite news gathering Host System PCI Bus DVxpert™ 5120/5140 Single-Chip AFF Encoder Architecture The Communications Company TM DVxpert™ 5120/5140 – MPEG Video Codecs KEY FEATURES: DVxpert 5120 • Flexible, cost-effective programmable preprocessing filters that can encode widths of 720, 704, 640, 544, 480, 384, 352, or 320 pixels • Frame-by-frame data insertion capability for added flexibility • Ultra-low latency with an unprecedented end-to-end delay of less than 100 ms supports two-way collaborative communications at full-frame rate • Real-time codec compression and decompression up to a horizontal resolution of 544 pixels delivers broadcast-quality images. Encoding TECHNOLOGY DRIVING NEW MARKETS Using leading edge DVxpert technology and LSI Logic’s patented PerfectView ® algorithm, educators can reach out to students in “virtual” classrooms, business colleagues can collaborate from remote locations, and doctors can practice effective telemedicine. High-bandwidth Fast Ethernet LANs (10/100 Mbps) and ATM LAN/WAN backbones (155 Mbps and above) now make it possible to fully implement these sophisticated interactive video applications across the enterprise. Another important trend is the convergence of the personal computer and television. The Internet is rapidly becoming another distribution tool for the video networking industry. Today, MPEG-1 compression technology allows consumers to view video files or download video clips or commercials from the World Wide Web. The DVxpert 5120/5140 MPEG-1 encoder provides low bit rate, highquality MPEG-1 compressed video at bit rates ranging from 56 kbps to 5 Mbps. or decoding alone yields a horizontal resolution of up to 720 pixels. • Automatic audio/video synchronization with user-configured transport layer generation and multiplexing/ de-multiplexing of A/V transport packets ensures proper synchronization of sound and images • Serial upgrade module (SUM) contains a unique identifier that authenticates future software upgrades requested by user DVXPERT 5120 VIDEO NETWORKING CODEC The DVxpert 5120 is a bundling product designed for use in two-way communication, video networking. • MPEG-2 ML@SP codec (Low Delay) • MPEG-2 “1/2 and 2/3 D1” Encoder • MPEG-1 Low Bit Rate Encoder Network ISDN, LAN, ATM, IP, etc. DVxpert 5140 • Full horizontal resolutions up to 704 pixels • High-quality MPEG-2 ML@MP video compression up to 10 Mbps • Picture user data insertion for insertion of presentation time stamps (PTS), decoder time stamps (DTS), and closed captioning data in the bitstream DVxpert™ MPEG Multipoint Video Communication reference frame with pixels of previous and subsequent frames. LSI Logic’s multilayer, hierarchical search methodology yields precise matches, at half-pel resolution, without the need for exhaustive, timeconsuming pixel-by-pixel comparisons. Live Broadcast Uplink Dish Error Masking. This LSI Logic MPEG encoding algorithm technique controls data distribution by searching for and hiding an undesirable compression artifact called ringing, a fuzz-like pattern that surrounds low-activity images produced by over-quantized AC coefficients. LSI Logic’s masking algorithm determines where ringing would be visible in an image and budgets data bandwidth to eliminate these artifacts. DVD Player Video Server Network ISDN, LAN, ATM, IP, etc. Content Creation Video Client 0204a MPEG Video Networking DVXPERT 5140 VIDEO COMMUNICATIONS CODEC The DVxpert 5140 includes all of the capabilities of the DVxpert 5120. In addition, it also has microcode that supports advanced communication features, such as MPEG-2 “Full D1” communications encoder. The table on the back page compares the capabilities of each device. PERFECTVIEW® ENCODING ALGORITHM PerfectView, LSI Logic’s patented encoding algorithm technology, produces superior MPEG-2 image quality at all bit rates. The DVxpert 5120 and 5140 both support the PerfectView features described below. Multilayer Motion Estimation. This technique is used to determine the extent of changes between frames of a video sequence, comparing pixels of a Inverse Telecine. This feature improves encoding efficiency for video material that originated as film by detecting and dropping repeated fields that have been introduced by the telecine process in the course of converting the film frame rate to the video rate. Variable Bit Rate (VBR) Encoding: VBR encoding allows the DVxpert 5120/5140 to encode difficult sequences with higher data rates, and simpler sequences with lower data rates in real-time. It constantly varies the bit rate representing the video to achieve optimal output image quality. Storage VBR encoding outputs data at a changing bit rate. The average bit rate is lower than in a constant bit rate (CBR) design, resulting in as much as 35percent storage space savings when encoding movie material. DVxpert™ 5120/5140 – MPEG Video Codecs DVxpert Feature Comparison Features For more information please call: DVxpert 5120 DVxpert 5140 MPEG-2 ML@SP Codec <100 ms End-to-end Delay X X Transport Multiplexer/De-multiplexer X X Variable Bit Rate Encoding: Storage X X Full-duplex Encoding and Decoding Up to 544 horizontal resolution Up to 544 horizontal resolution Half-duplex Encode/Decode Up to 720 horizontal resolution Up to 720 horizontal resolution Dual-prime Motion Estimation Encoding X X Picture-in-Picture, On-screen Display and Text Overlay Decoding Options X X Mute Audio, Freeze Input Video, Intra-refresh Conferencing Pptions X X Encoded Bit Rate Range 1.5 - 15 Mbps 1.5 - 15 Mbps GOP Structure (real-time variable) I, IP I, IP Horizontal Resolution 720, 704, 640, 544, 480, 384, 720, 704, 640, 544, 480, 384, 368, 352, 320 368, 352, 320 Vertical Resolution NTSC: 480 - PAL: 576 NTSC: 480 - PAL: 576 X X North American Headquarters, Milpitas, CA Tel: 800 574 4286 North America Milpitas, CA USA Phone: 1-408-490-8000 Fax: 1-408-490-8590 Quebec, Canada Phone: 1-514-426-5011 Fax: 1-514-426-7119 Europe MPEG-2 “1/2 and 2/3 D1” Encode Vertical/Temporal Filtering LSI Logic Corporation Crawley, West Sussex United Kingdom Phone: 44-1293-651100 Fax: 44-1293-651119 China Beijing, China Phone: 86-10-626-38296 Fax: 86-10-626-38322 Chengdu, China Phone: 86-28-6713-150 Fax: 86-28-6713-694 Pan/Scan X X Inverse Telecine X X Variable Bit Rate Encoding: Storage X X Closed Captioning X X Frame-Accurate Start/Stop/Pause X X Picture User Data Insertion X X GOP Structure (real-time variable) I-only, IP, IB, IBBP I-only, IP, IB, IBBP Encoded Bit Rate Range 2 to 15 Mbps 2 to 15 Mbps Horizontal Resolution 480, 384, 368, 352, 320 480, 384, 368, 352, 320 Seoul, Korea Phone: 822-561-9011 Fax: 822-561-9021 Vertical Resolution NTSC: 480 - PAL: 576 NTSC: 480 - PAL: 576 Taiwan Taipei, Taiwan Phone: 886-22-517-4938 Fax: 886-22-517-4937 MPEG-1 Encode Vertical/Temporal Filtering X X Picture User Data Insertion X X Frame Dropping Mode X X Encoded Bit Rate Range 56 kbps - 5 Mbps 56 kbps - 5 Mbps GOP Structure (real-time variable) I-only, IP, IB, IBBP I-only, IP, IB, IBBP Horizontal Resolution 352, 320, 176, 160 352, 320, 176, 160 Vertical Resolution NTSC: 240, 112 - PAL: 288, 144 NTSC: 240, 112 - PAL: 288, 144 MPEG-2 “Full D1” Encode Vertical/Temporal filtering X Closed Captioning X Frame-Accurate Start/Stop/Pause X Picture User Data Insertion X GOP Structure (real-time variable) I-only, IP, IB, IBBP Encoded Bit Rate Range 2 to 10 Mbps Horizontal Resolution 704, 352 Vertical Resolution NTSC: 480 PAL: 576 Japan Kohoku-Ku, Yokohama Kanagawa Japan Phone: 81-45-474-7571 Fax: 81-45-474-7570 Korea LSI Logic logo design, The Communications Company, DVxpert, and PerfectView are trademarks or registered trademarks of LSI Logic Corporation. All other brand and product names may be trademarks of their respective companies. LSI Logic Corporation reserves the right to make changes to any products and services herein at any time without notice. LSI Logic does not assume any responsibility or liability arising out of the application or use of any product or service described herein, except as expressly agreed to in writing by LSI Logic; nor does the purchase, lease, or use of a product or service from LSI Logic convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual property rights of LSI Logic or of third parties. Copyright ©2001 by LSI Logic Corporation. All rights reserved. Order No. I20093 1101.1K.JG.IK - Printed in USA The Communications Company TM