the communications company tm DVXPERT 5120/5140 mpeg video codecs for broadcast-quality interactive video networking and communication applications serial eprom dv xpert 8mb of sdram 1mx16 d1 standard video stream ecl/ttl translator ntsc/pal decoder ttl/ecl translator ntsc/pal encoder s-video or composite input d1 standard video stream s-video or composite output stereo audio in stereo audio out audio codec glueless sdram interface 27.5-mhz oscillator sum system pci bus host audio out audio in pio pio video in video out clk serial control serial control 0203a DVXPERT 5120/5140 single-chip aff encoder architecture target applications: the DVXPERT 5120/5140 codec sup- ports a wide range of high-quality video applications, including: video networking professional conferencing distance learning interactive desktop video collaboration satellite news gathering surveillance content creation 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-low- delay compression technology with the space and cost savings of a single- chip 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 ?ull d1? resolution at bit rates from 2 to 10 mbps. DVXPERT 5120/5140 it the most flexible solution available on the market today: mpeg-2 ?ull d1?compression up to 10 mbps mpeg-2 ?/2 and 2/3 d1?compression up to 15 mbps mpeg-2 ml@sp compression/decompression up to 15 mbps mpeg-1 compression 56 kbps to 5 mbps
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 unprece- dented end-to-end delay of less than 100 ms supports two-way collabora- tive communications at full-frame rate real-time codec compression and decompression up to a horizontal resolution of 544 pixels delivers broadcast-quality images. encoding or decoding alone yields a horizon- tal resolution of up to 720 pixels. automatic audio/video synchroniza- tion with user-configured transport layer generation and multiplexing/ de-multiplexing of a/v transport packets ensures proper synchroniza- tion of sound and images serial upgrade module (sum) contains a unique identifier that authenticates future software upgrades requested by user 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 inser- tion of presentation time stamps (pts), decoder time stamps (dts), and closed captioning data in the bitstream DVXPERT mpeg multipoint video communication network isdn, lan, atm, ip, etc. technology driving new markets using leading edge DVXPERT technology and lsi logic s patented perfectview algorithm, educators can reach out to students in ?irtual?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, high- quality mpeg-1 compressed video at bit rates ranging from 56 kbps to 5 mbps. 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 ?/2 and 2/3 d1?encoder ? mpeg-1 low bit rate encoder
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 ?ull 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 reference frame with pixels of previous and sub- sequent frames. lsi logic s multilayer, hierarchical search methodology yields precise matches, at half-pel resolution, without the need for exhaustive, time- consuming pixel-by-pixel comparisons. 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-quan- tized ac coefficients. lsi logic s masking algorithm determines where ringing would be visible in an image and budgets data bandwidth to eliminate these artifacts. inverse telecine. this feature improves encod- ing 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 encod- ing 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. 0204a uplink dish dvd player network isdn, lan, atm, ip, etc. video server live broadcast content creation video client mpeg video networking
the communications company tm DVXPERT 5120/5140 mpeg video codecs DVXPERT feature comparison features 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 mpeg-2 ?/2 and 2/3 d1?encode vertical/temporal filtering x x 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 vertical resolution ntsc: 480 - pal: 576 ntsc: 480 - pal: 576 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 ?ull 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 for more information please call: lsi logic corporation 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 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 japan kohoku-ku, yokohama kanagawa japan phone: 81-45-474-7571 fax: 81-45-474-7570 korea seoul, korea phone: 822-561-9011 fax: 822-561-9021 taiwan taipei, taiwan phone: 886-22-517-4938 fax: 886-22-517-4937 lsi logic logo design, the communications company, DVXPERT, and perfectview are trademarks or registered trade- marks 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
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