no matter what mpeg-2 video encoding needs you have, ibms family of encoders can help you deliver competitive products that offer technical advantages.the mpeg s-series chips are based on ibms successful three-chip encoder family. our MPEGS422 professional studio encoder provides superior quality for high-end video compression applications. if you are building transmission or access products, our mpegs420 professional broadcast encoder is well-suited to your needs. the mpegsi intra-frame encoder features flexibility and picture quality that satisfy a wide range of authoring and editing applications. ibm microelectronics mpeg-2 s-series encoders the professional digital video solution highlights MPEGS422 professional studio encoder mpegs420 professional broadcast encoder mpegsi intra-frame encoder
data rates up to 50 mb/s.to help reduce overall system cost, the mpegs420 can also be configured by the user for 15 mb/s (or less) compressed data rates, and for a search range of +/-64h, +/-56v. this allows inexpensive asram to replace ssram on the search memory interface. user selectable chrominance down- sampling from 4:2:2 and 4:2:0 in either progressive or interlaced mode assures color quality. mpegsi intra-frame encoder ibms mpegsi intra-frame encoder offers the flexi bility and ed itability of an intra- frame bitstream along with the excellent picture quality achieved through many of the rate control features available on the MPEGS422 product. image statistics and user-specified encoding functions combine to produce high-quality images at rates of up to 50 mb/s.the mpegsi, a low power solution, is well-suited for applications with high picture quality and minimal hardware requirements. reduced development and debug time ibm offers expanded microcode pack- ages with the new mpeg s-series encoder products at no additional charge.this advanced microcode shortens development time through flexible dynamic parameter selection. the user controls the encoder microcode and dynamically selects video compres- sion parameters by posting real-time commands through host registers.this eliminates the need for complex, low-level device programming, and the associated debug time. MPEGS422 professional studio encoder the MPEGS422 professional studio encoder maintains ibms leadership position in 4:2:2 profile applications and addresses the special needs of high quality applications.the chip supports mpeg-2 ibp encoding for 4:2:2 profile at main level and compressed data rates up to 50 mb/s. it maintains this conformance with a search range of +/-101h, +/-64v. mpegs420 professional broadcast encoder ibms mpegs420 professional broadcast encoder is the right choice for real-time 4:2:0 mpeg-2 encoding at ccir601 resolution. mpegs420 offers high performance and functionality at a search range of +/-101h, +/- 64v and ibm microelectronics frame memory sdram mpeg s-series host processor communication digital video data input mpeg s-series encoder supporting hardware @@@@@@@@e? @@@@@@@@e? @@h? @@h? @@h? @@h? @@h? @@h? @@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e? @@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e? @@@@@@@@ @@@@@@@@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ ?@@ ?@@ ?@@ ?@@ ?@@ ?@@ ?@@@@@@@@ ?@@@@@@@@ ?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@ ?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@?e@@@@@@@@e?@@@@@@@@ @@g @@g @@g @@g @@g @@g @@@@@@@@ @@@@@@@@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ @@ 1 reconstruct and search memories are not required by mpegsi reconstruct memory sdram search memory ssram
scene change detection the scene change detection feature, which can be controlled internally or externally, identifies the scene changes in the source material, thereby enabling automatic tailoring of the compression scheme to the source content.the encoders also support fade detection. user selectable chrominance down-sampling for sharp colors, the mpeg s-series provides selectable progressive or interlaced down-sampling from 4:2:2 to 4:2:0 chrominance format. repeat field detection for further compression, the mpeg s-series supports internal and external repeat field detection to identify fields added during the telecine process of converting the frame rate from 24 to 30 frames per second. half horizontal resolution (hhr) mpeg s-series provides conversion from ccir601 to hhr resolutions for compati- bility in mpeg-1 system designs. programmable quantization tables the mpeg s-series enables the user to program separate luminance and chrominance quantization tables to tailor compression towards picture scene content (chrominance tables are not enabled in 4:2:0 chroma format). pin compatibility the MPEGS422, mpegs420, mpegsi chips are pin compatible with one another, enabling multiple uses of a single system design. in addition, these chips have host and pixel interfaces common to previous-generation ibm encoders, helping to protect the initial designs of our existing customers, and reduce time to market. low latency for real-time applications that require minimal delay, the mpeg s-series encoders operate at a maximum delay of three frames and have a latency of only one frame for i-frame or ip encoding. tuned for quality extensive studies conducted at our research laboratories show that a large motion estimation search range is not always better if accuracy is compro- mised. based on these studies, ibms mpeg s-series encoders are tuned for quality through an optimal balance between search range and accuracy of motion estimation. features the mpeg s-series of encoders are highly integrated, single-chip solutions for digital video compression.they share powerful features including: ? 4:2:2 profile @ main level support 2 ? support for all picture modes including ibp ,ibbp ,ip , and i-only ? dynamic gop structure 2 ? user-specified quantizer tablesC2 sets with 4 tables per set 2 ? repeat field detection 2 ? reduced power consumption 2 ? jtag support 2 ? low latency 2 note: new features introduced since ibms me30/me31 encoders. statistical multiplexing, variable bit rate (vbr) the mpeg s-series encoders are designed to deliver refined picture quality in broadcast, distribution and studio applications req uiring vbr and statistical multiplexing. using the statistics for each encoded picture provided by the encoders, users can balance multi- channel image quality.they can also control compression results and picture quality on a picture-by-picture basis, using programmable gop structure and encoding parameters. constant bit rate (cbr) adaptive field/frame dct, automatic adaptive quantization and automatic rate control provide maximum picture quality in cbr applications. field or frame compression and motion estimation decisions are made in real-time, allowing automatic adjustments based on picture content.
g522-0199-01 *07g522019901* ? copyright international business machines corporation 1998 all rights reserved printed in the united states of america 7-98 ibm and the ibm logo are trademarks of international business machines corporation in the united states and/or other countries. other company, product and service names may be trademarks or service marks of others. all information contained in this document is subject to change without notice.the products described in this document are not intended for use in implanta- tion or other life support applications where malfunction may result in injury or death to persons. the information contained in this document does not affect or change ibm's product specifications or war- ranties. nothing in this document shall operate as an express or implied license or indemnity under the intellectual property rights of ibm or third parties. all information contained in this document was obtained in specific environments, and is presented as an illustration.the results obtained in other operating environments may vary. the information contained in this docu- ment is provided on an "as is" basis. in no event will ibm be liable for damages arising directly or indirectly from any use of the information contained in this document. digital video products quality is demonstrated by the certification of its quality management system in accordance with the iso 9001 standard. ibm microelectronics division 1580 route 52, bldg. 504 hopewell junction, ny 12533-6351 the ibm home page can be found at http://www.ibm.com the ibm microelectronics division home page can be found at http://www.chips.ibm.com feature comparisons MPEGS422 mpegs420 mpegsi mpeg-2 422p@ml x C x mpeg-2 mp@ml, sp@ml, mpeg-1 x x x 4:2:0 output chroma format x x x 4:2:2 output chroma format x C x field orframe chroma down-sampling x x x real-time vbr and cbr support x x x statistical multiplexing support x x x frame accurate start/stop x x x picture user data insertion x x x dc precision 8 to 11 bits 8 to 11 bits 8 to 11 bits compressed data rates up to 50 mb/s up to 50 mb/s up to 50 mb/s dynamic gop structure i-only, ip ,ibp , i-only, ip ,ibp , i-only (real-time variable) ib, ibbp ib, ibbp video resolution up to 720x512 up to 720x512 ntsc or up to up to ccir601 ntsc or up to 720x608 pal 720x608 pal adaptive field and frame motion estimation +/-101h, +/- 64v +/-101h, +/- 64v C search ranges with half pel accuracy conversion to hhr x x x adaptive field/frame dct x x x adaptive quantization and rate controls x x x automatic scene change detection x x x output picture statistics x x x repeat field detection x x x 16-bit ycbcr x x x 16-bit generic host interface x x x output compressed data to fifo x x x external fifo feedback for d ynamic rate control x x x user-specified quantizer tables luma & chroma luma luma & chroma memory requirements (3.3 or 5 v) 100 mhz sdram/sgram 8mb 7mb 4mb 8 ns ssram 256kb 256kb jtag x x x latency 3 frames max 3 frames max 1 frame specifications ? cmos 0.27 m m (l effective) ? plastic ball grid array package ? 35 mm module package ? 352 i/o ? MPEGS422, 4.4 watts (nominal) ? mpegs420, 4.1 watts (nominal) ? mpegs420 C reduced search range @ 15 mb/s, 3.8 watts (nominal) ? mpegsi,1.7 watts (nominal) ? 0.5 m/s airflow min. at 40 c ambient part numbers ibm39 MPEGS422 pba17c ibm39 mpegs420 pba18c ibm39 mpegsi pba18c for more information, visit our web site at www.chips.ibm.com
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