參數(shù)資料
型號(hào)： SAA6752HS
廠商： NXP Semiconductors N.V.
英文描述： MPEG-2 video and MPEG-audio/AC-3 audio encoder with multiplexer
中文描述： MPEG - 2視頻和MPEG-audio/AC-3音頻編碼器與復(fù)用器
文件頁(yè)數(shù)： 19/71頁(yè)
文件大?。?/td> 2570K
代理商： SAA6752HS
2004 Jan 26
19
Philips Semiconductors
Product specification
MPEG-2 video and MPEG-audio/AC-3
audio encoder with multiplexer
SAA6752HS
7.3.2
V
IDEO ENCODER CONFIGURATION OPTIONS
The following configuration options can be selected from
the host:
VIDEO COMPRESSION SETTINGS. I, IP and IPB
encoding with various GOP structures can be selected.
ENCODER BIT RATE. The bit rate for variable bit rate
or constant bit rate modes can be programmed using bit
rate and quantization control parameters. These
parameters can be adjusted whilst encoding, not just set
at initialization.
ENCODER PERFORMANCE TUNING. The ability for
the user to tune encoding performance is provided by
allowing control of adaptive quantization depth. Also the
SAA6752HS allows download of new quantizer matrix
contents.
7.3.3
V
IDEO ENCODER STATUS INFORMATION
The following status information is available to the host:
CURRENT ENCODER BIT RATE. The actual encoded
bit rate, as number of bytes per GOP, is available
allowing the use of constrained variable bit rate
algorithms to fine tune the encoding efficiency.
7.3.4
GOP
STRUCTURE
The programmable GOP structure features a reference
frame distance (M) up to 3, and a GOP length (N) of up
to 19. Supported structures are real closed GOP(M,N) and
backward predicted closed GOP(M,N). For the use of
B-frames in D1 and 2/3D1 mode a 64 Mbit SDRAM is
needed.
In D1 mode, B-frames will be unidirectional. Backward
predicted closed GOPs may have the first one (M = 2) or
two (M = 3) B-frames referenced inside the GOP
dependent on the I
2
C-bus register settings. This is
intended for editable applications as GOPs are
independent of each other. Non-editable GOPs allow the
first one (M = 1) or two (M = 2) B-frames to be referenced
to the P-frame in the previous GOP. This is a non-editable
formatbuthasoptimumencodingefficiency.Thisstructure
is sometimes called an open GOP. The first one (M = 1) or
two (M = 2) B-frames in the first GOP of a sequence are
always forced backwards predicted.
Table 3
GOP
Notes
1.
2.
Undefined.
This GOP structure is defined as a Real Closed GOP
(RCG).
This GOP structure is defined as a Backward
Predicted Closed GOP (BPCG) or Non-Editable GOP
(NEG), selectable via the I
2
C-bus.
3.
GOP
LENGTH (N)
REFERENCE FRAME DISTANCE (M)
0
1
2
3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
I
(1)
IP
(1)
IPP
(1)
IPPP
(1)
IPPPP
(1)
IPP...PP BIBPBP
(3)
(1)
IPP...PP IBP...BP
(2)
(1)
IPP...PP BIBP...BP
(3)
(1)
IPP...PP IBP...BP
(2)
(1)
IPP...PP BIBP...BP
(3)
IBBP...BBP
(2)
(1)
IPP...PP IBP...BP
(2)
(1)
IPP...PP BIBP...BP
(3)
BBI...BBP
(3)
(1)
IPP...PP IBP...BP
(2)
(1)
IPP...PP BIBP...BP
(3)
(1)
IPP...PP IBP...BP
(2)
(1)
IPP...PP BIBP...BP
(3)
IBBP...BBP
(3)
(1)
IPP...PP IBP...BP
(2)
(1)
IPP...PP BIBP...BP
(3)
BBI...BBP
(3)
(1)
IPP...PP IBP...BP
(2)
(1)
(1)
(1)
(1)
(1)
IBP
(2)
BIBP
(3)
IBPBP
(2)
(1)
IBBP
(2)
(1)
BBIBBP
(3)
IBBPBBP
(2)
(1)
BBI...BBP
(3)
(1)
IBBP...BBP
(2)
(1)
BBI...BBP
(3)
(1)
IBBP...BBP
(2)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA6752HS/V103 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:MPEG-2 video and MPEG-audio/AC-3 audio encoder with multiplexer
SAA6752HS/V103,557 功能描述:IC AUD/VID ENCODER MPEG 208-SQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799
SAA6752HS/V104 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:MPEG-2 video and MPEG-audio/AC-3 audio encoder with multiplexer
SAA6752HS/V104,557 功能描述:IC AUD/VID ENCODER MPEG 208-SQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799
SAA7000 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:CD機(jī)插補(bǔ)靜音器
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