參數(shù)資料
型號(hào)： UPD61051
廠商： NEC Corp.
英文描述： MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
中文描述： 馬鞍山集成電路MPEG2音頻/視頻編碼器
文件頁數(shù)： 16/106頁
文件大?。?/td> 824K
代理商： UPD61051
Data Sheet S15082EJ4V0DS
16
μ
PD61051, 61052
2.
FEATURE OVERVIEW
The functions and I/O interfaces are set using firmware.
Supported functions differ depending on firmware.
2.1
Video
This LSI can do flexible encoding and transcoding by using the firmware control of internal CPU and an exclusive
use circuit. NTSC/PAL video format, which is possible of the encoding is as in
Table 2-1
. NTSC/PAL video format of
the transcoding is under 720 dots by 480/576 line/frame.
Table 2-1. Video Format
MPEG2
MPEG1
Video format
Yes
No
720 dots by 480/576 line/frame
Yes
No
704 dots by 480/576 line/frame
Yes
No
544 dots by 480/576 line/frame
Yes
No
480 dots by 480/576 line/frame
Yes
No
352 dots by 480/576 line/frame
Yes
Yes
352 dots by 240/288 line/frame
2.1.1
Encoding
It encodes the video that was converted from the 4:2:2 format into the 4:2:0 format in the video input/output unit
with MPEG2 standard MP@ML, SP@ML and the MPEG1 standard. It is encoding in variable bit rate (single path
VBR encoding) or constant bit rate (CBR). The pre analysis supports high quality picture encoding. Encode supports
frame structure.
Using the following, only 64 Mbits SDRAM is needed.
Encoding with locally decoding and/or time base corrector (TBC)
PAL encoding
DVD encoding needs equal to 128 Mbits SDRAM area.
The motion estimation size
P picture:
±
128 dots (H) by
±
64 lines (V)
B picture:
±
96 dots (H) by
±
48 lines (V),
±
64 dots (H) by
±
32 lines (V)
I/P picture period in MP@ML : M
≤
3
Dual prime estimate, only at the time of M = 1.
2.1.2
Transcoding
It transcodes the stream of MPEG2 standard MP@ML based. It is possible for the bit rate conversion.
相關(guān)PDF資料
PDF描述
UPD61051GD-LML MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
UPD61051GD-LML-A MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
UPD61052 MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
UPD61052GD-LML MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
UPD61052GD-LML-A MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD61051GD-LML 制造商:NEC 制造商全稱:NEC 功能描述:MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
UPD61051GD-LML-A 制造商:NEC 制造商全稱:NEC 功能描述:MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
UPD61052 制造商:NEC 制造商全稱:NEC 功能描述:MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
UPD61052GD-LML 制造商:NEC 制造商全稱:NEC 功能描述:MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
UPD61052GD-LML-A 制造商:NEC 制造商全稱:NEC 功能描述:MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
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