国产精品成人VA在线观看-国产乱妇乱子视频在播放-国产日韩精品一区二区三区在线-国模精品一区二区三区

參數(shù)資料
型號: W9960CF
廠商: WINBOND ELECTRONICS CORP
元件分類: 消費(fèi)家電
英文描述: A Single Chip Multiprotcol High Performance Video CODEC(單片多協(xié)議高性能視頻編解碼器)
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP208
封裝: PLASTIC, QFP-208
文件頁數(shù): 35/65頁
文件大小: 368K
代理商: W9960CF
W9960CF
Winbond Confidential
35
June 1997
3.11 Video Pre/Post Processing Engine
The functions of Video Preprocessing engine are capturing, cropping, zooming video in 4CIF,
CIF, QCIF, Sub-QCIF resolution. Actually, user can command this engine to capture image of
any size within 704 x 576(PAL) or 704x480(NTSC). Video Preprocessing Engine also provides
two programmable decimation horizontal filters for luminance data and chrominance data to
smooth the captured image.
Video Postprocessing Engine supports both RGB 5:6:5 and YUV 4:2:2 for both local and remote
video output. RGB format is for normal VGA card without color space conversion. YUV format is
for those video cards with color space conversion and scaling support.
3.11.1
V
IDEO
P
RE
P
ROCESSOR
(VPRE)
The Video PreProcessor (VPRE) transfers the captured video data to frame buffer DRAM
through horizontal filters, horizontal subsampler and FIFO for DMA data transfer. The size of the
Y FIFO is 44x4 bytes. U FIFO and V FIFO is 22x4 bytes each. The block diagram is shown
below:
Bt/Ph_
Video
Interface
YUV422
signal
from
Video Decoder
HS
VS
VD(15:0)
VCLK
Image
Grabber
Cap_trig
HD
HA
VD
VA
Even
/OddScaleV
(1, 1/2, 1/5 )
YUV
422
v
420
ScaleH
( 1, 1/2, 1/4 )
1/2H
1/2H
Y
U
V
FIFO
FIFO Control
Full
( 1, 3/4, 2/4, 1/4 )
taps filter
D_Bus
44x32bits
22x32bits
22x32bits
Video PreProcess Diagram
The following is the register parameters used to configure for different formats:
NTSC/
PAL
HA
VA
E
O
Scale
H
Scale
V
1/5
O
Picture Size
( H x V )
Format
Description
NTSC
704
240
on
on
1
1
off
704
480
4CIF
704
240
on
on
1/2
1
on
352
288
CIF
4CIF ZO to CIF
352
240
on
on
1
1
on
352
288
CIF
CIF ZI fr 4CIF ,P
352
144
on
off
1/2
1
off
176
144
QCIF
QCIF ZI fr 4CIF, P
704
240
on
on
1/4
1/2
on
176
144
QCIF
4CIF ZO to QCIF
PAL
704
288
on
on
1
1
off
704
576
4CIF
相關(guān)PDF資料
PDF描述
W9961CF H.263/H.261 Video Codec
W9967BCF JPEG USB Camera Chip(運(yùn)用JPEG壓縮技術(shù)和通用串行總線結(jié)構(gòu)技術(shù)的照相電路數(shù)字處理芯片的攝像照相機(jī)接口控制器)
W9967CF JPEG USB Camera Chip(運(yùn)用JPEG壓縮技術(shù)和通用串行總線結(jié)構(gòu)技術(shù)的照相電路數(shù)字處理芯片的攝像照相機(jī)接口控制器)
W99681CF JPEG USB Dual Mode Camera Chip(運(yùn)用JPEG壓縮技術(shù)、通用串行總線結(jié)構(gòu)技術(shù)、雙制式的照相電路數(shù)字處理芯片的攝像照相機(jī)接口控制器)
W9971CF Integrated Video Graphics Accelerator(集成的視頻圖形加速器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W9961CF 制造商:WINBOND 制造商全稱:Winbond 功能描述:H.263/H.261 Video Codec
W9966CF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
W9966TF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
W99681CF 制造商:WINBOND 制造商全稱:Winbond 功能描述:JPEG USB Dual Mode Camera Chip
W99685 制造商:未知廠家 制造商全稱:未知廠家 功能描述: