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D7 Entropy Processor SW MAS.doc
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这里面主要是视频解码技术,记住可是最好的啊
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D7 Entropy Processor SW
MODULE ARCHITECHTURE SPECIFICATION (MAS)
Version: 0.1
November 2, 2010
D7 Entropy Processor SW
MODULE ARCHITECHTURE SPECIFICATION (MAS)
Copyright © Magnum Semiconductor, Inc. Unpublished
Proprietary & Condenal
This document and the informaon contained herein constute proprietary and condenal informaon of
Magnum and any use thereof outside of Magnum is prohibited
Magnum Semiconductor, Inc. NDA Required Preliminary
Proprietary & Confidential rev 0.1 Page 2 of 25
D7 Entropy Processor SW
MODULE ARCHITECHTURE SPECIFICATION (MAS)
Revision History
Version Date Change Summary
0.1 November 2,
2010
1. The first version created based on “E6 Entropy Processor
Module Architecture Document (MAS)” with Magnum
document template
2. Changed some words from LSI to Magnum, from E6 to D7
3. Add profile high-10, 4:2:2
4. Added contents for two EPs on D7
Magnum Semiconductor, Inc. NDA Required Preliminary
Proprietary & Confidential rev 0.1 Page 3 of 25
D7 Entropy Processor SW
MODULE ARCHITECHTURE SPECIFICATION (MAS)
Table of Contents
D7 Entropy Processor SW.............................................................................1
MODULE ARCHITECHTURE SPECIFICATION (MAS).................................1
Version: 0.1.....................................................................................................1
Copyright © Magnum Semiconductor, Inc. Unpublished..........................2
Proprietary & Confidential.............................................................................2
Revision History.............................................................................................3
Table of Contents...........................................................................................4
Table of Figures..............................................................................................4
1. Introduction.................................................................................................5
2. Architecture................................................................................................5
3. Entropy Processor Manager (EPM)..........................................................8
4. EP Transcoder (EPX)...............................................................................20
5. Appendix A: Design Review Minutes.....................................................25
Table of Figures
Figure 1 - Basic EP Block Diagram..........................................................................................6
Figure 2 - BluRay Single-stream Playback Block Diagram......................................................7
Figure 3 - Single-stream Encode Block Diagram.....................................................................8
Figure 4 – Example Signal and Information Flow Diagram.....................................................9
Figure 5 - Entropy Processor Tasks and Task Data................................................................11
Figure 6 - EP State Transition Diagram..................................................................................12
Figure 7 – EP interrupt process..............................................................................................15
Figure 8 - Example Signal and Information Flow Diagram....................................................20
Figure 9 - EPX State Transition Diagram...............................................................................22
Figure 10 - Dual-stream example...........................................................................................24
Magnum Semiconductor, Inc. NDA Required Preliminary
Proprietary & Confidential rev 0.1 Page 4 of 25
D7 Entropy Processor SW
MODULE ARCHITECHTURE SPECIFICATION (MAS)
1. Introduction
This document describes the C-Ware Entropy Processor Architecture for D7, it’s updated
from E6 Entropy Processor Module Architecture Document (MAS); the main change is let
EPM to use 2 EP hardware modules effectively and keep the interface unchanged.
1.1 Reference
[ 1 ] E6 Entropy Processor Module Architecture Document (MAS),
http://magnumlib/view.php?fDocumentId=128802
[ 2 ] Architecture Reference Entropy Processor, http://mdoc/index.php?id=000147
[ 3 ] D7 Entropy Processor SW MODULE REQUIREMENTS SPECIFICATION
(MRS), http://<TBD>
1.2 Acronyms
CABAC - Context-based Adaptive Binary Arithmetic Coding
CAVLC - Context-based Adaptive Variable-Length Coding
EP - Entropy Processor
HD - High definition
NAL - Network Abstraction Layer (unit for H.264)
SD - Standard defininition
EPM - Entropy Processor Manager
EPX - Entropy Processor Transcoder
EPT - Entropy Processor Task
1.3 Scope
This document is for Magnum Semiconductor confidential use only. C-Ware
Developers and Software Validation are its audience.
2. Architecture
The basic purpose of the Entropy Processor is to convert an H.264 bitstream from one
entropy coding type to the other (CABAC<->CAVLC).
Magnum Semiconductor, Inc. NDA Required Preliminary
Proprietary & Confidential Rev 0.2 Page 5 of 25
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