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A Hybrid Scheme Based on Pipelining and Multitasking in Mobile Application Processors for Advanced Video Coding
Joint Authors
Bin Ahmad, Maaz
Asif, M.
Taj, Imtiaz A.
Ziauddin, S. M.
Tahir, M.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-11-19
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
One of the key requirements for mobile devices is to provide high-performance computing at lower power consumption.
The processors used in these devices provide specific hardware resources to handle computationally intensive video processing and interactive graphical applications.
Moreover, processors designed for low-power applications may introduce limitations on the availability and usage of resources, which present additional challenges to the system designers.
Owing to the specific design of the JZ47x series of mobile application processors, a hybrid software-hardware implementation scheme for H.264/AVC encoder is proposed in this work.
The proposed scheme distributes the encoding tasks among hardware and software modules.
A series of optimization techniques are developed to speed up the memory access and data transferring among memories.
Moreover, an efficient data reusage design is proposed for the deblock filter video processing unit to reduce the memory accesses.
Furthermore, fine grained macroblock (MB) level parallelism is effectively exploited and a pipelined approach is proposed for efficient utilization of hardware processing cores.
Finally, based on parallelism in the proposed design, encoding tasks are distributed between two processing cores.
Experiments show that the hybrid encoder is 12 times faster than a highly optimized sequential encoder due to proposed techniques.
American Psychological Association (APA)
Asif, M.& Taj, Imtiaz A.& Ziauddin, S. M.& Bin Ahmad, Maaz& Tahir, M.. 2015. A Hybrid Scheme Based on Pipelining and Multitasking in Mobile Application Processors for Advanced Video Coding. Scientific Programming،Vol. 2015, no. 2015, pp.1-16.
https://search.emarefa.net/detail/BIM-1076503
Modern Language Association (MLA)
Asif, M.…[et al.]. A Hybrid Scheme Based on Pipelining and Multitasking in Mobile Application Processors for Advanced Video Coding. Scientific Programming No. 2015 (2015), pp.1-16.
https://search.emarefa.net/detail/BIM-1076503
American Medical Association (AMA)
Asif, M.& Taj, Imtiaz A.& Ziauddin, S. M.& Bin Ahmad, Maaz& Tahir, M.. A Hybrid Scheme Based on Pipelining and Multitasking in Mobile Application Processors for Advanced Video Coding. Scientific Programming. 2015. Vol. 2015, no. 2015, pp.1-16.
https://search.emarefa.net/detail/BIM-1076503
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1076503