[WIS Technologies]

Advanced Features:

Output Formats

▪ MPEG-4 Simple Profile @ L3 plus B-frame support; DivX and WISmp4 compatible

▪ MPEG-2 MP @ ML

▪ MPEG-1, H.263, MJPEG

▪ User-defined formats

Video Input

▪ CCIR-601 and CCIR-656 YUV (8-bit) 4:2:2 progressive or interlace; all four types of RGB Bayer

▪ Maximum input size:

NTSC interlaced: 720 x 480 @ 30fps or 720 x 240 @ 60fps PAL: 720 x 576 @ 25fps or 720 x 288 @ 50fps

▪ Resolution from 64 x 64 to 720 x 576 (16-pixel increments)

▪ Frame rate up to 30fps (full-D1) or 120fps (CIF)

▪ WIS-patented RGB Bayer to YUV conversion (high quality)

▪ WIS-patented de-interlace and 4:2:2 to 4:2:0 conversion

▪ Optional 1:2 horizontal, vertical, or bi-directional scaling

▪ Programmable median, low-pass and edge enhancement filtering (up to 10 run-time adjustable parameters)

Video Compression

▪ WIS-patented Motion Estimation Engine (search range +/-127 horizontal PEL and +/- 63 vertical PEL with half-PEL accuracy)

▪ WIS-patented high precision DCT/IDCT and (de)quantize

▪ Advanced scene change detection and GOP adjusting

▪ 48MHz to 96MHz (depending on resolution)

▪ Programmable GOP structures of I, IP, IBP, IBBP

▪ WIS-patented advanced MPEG-4 bit-rate control (CBR/VBR) from 1Kbps to 40Mbps

Video Quality and Features

▪ DVD quality full-D1 video at 2Mbps

▪ High quality 40Kbps QCIF video for low bandwidth communication

▪ 2-hour 640 x 352 movie in one 650M CD (average PSNR about 40db)

▪ Dynamically adjustable bit rate and frame rate to fit variable bandwidths (for Internet communication applications)

▪ Drivers, SDK, related software (decoding/transcoding, post-process, Internet-ready software) and sample applications provided

▪ Most features and parameters are configurable from host (e.g., PC) side

▪ Internal algorithms of scene change and bit-rate control are upgradeable