Efficient PCIe transmission for Multi-Channel video using dynamic splicing and conditional prefetching

Efficient PCIe transmission for Multi-Channel video using dynamic splicing and conditional... PCI Express (PCIe) interface has been extensively used in high-speed digital systems for multimedia communication. With the migration of the video processing algorithms from host to embedded hardware, multi-channel video capturing systems will produce not only different channels of raw video data but also different types of auxiliary data, such as analyzed data and compressed stream. In order to display multi-channel video in real-time and explore the auxiliary data, conventional transmission strategies are no longer applicable, due to the fact that heterogeneous data will cause frequent interactions and lead to the waste of PCIe bandwidth. In this paper, an efficient PCIe transmission method for multi-channel video is presented. Firstly, for the transmission of multi-type video data, a dynamic splicing mechanism is proposed to combine the video analyzed data and the compressed stream with the raw video to avoid the individual transmission of the auxiliary data. Secondly, as the spliced data are from different channels, a conditional prefetching mechanism is employed to determine whether there exists any entire video frame in other channel buffers, so that multi-channel video data can be transmitted possibly at one time. Finally, in the host-side driver, direct kernel buffer access technique is used to improve the application I/O request packet (IRP) performance. And to ensure the transmission efficiency of the conditional prefetching, DMA circular queue buffer and timer self-feedback monitor techniques are designed to avoid the possible visit bursts and abnormal interruptions. Experimental results demonstrate that compared with the conventional methods, the proposed method reduces the interrupt interactions by 60%, increases the transmission channel number by 94%, and also increases the application IRP number by 54%. The peak transmission speed of PCIe is up to 155 MB/s, which can meet 7 channels 704 × 576 YUV raw video and its auxiliary data transmission requirements using one 1-lane PCIe endpoint. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Multimedia Tools and Applications Springer Journals

Efficient PCIe transmission for Multi-Channel video using dynamic splicing and conditional prefetching

Loading next page...
 
/lp/springer_journal/efficient-pcie-transmission-for-multi-channel-video-using-dynamic-cx50j0a7Fb
Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media New York
Subject
Computer Science; Multimedia Information Systems; Computer Communication Networks; Data Structures, Cryptology and Information Theory; Special Purpose and Application-Based Systems
ISSN
1380-7501
eISSN
1573-7721
D.O.I.
10.1007/s11042-017-4410-x
Publisher site
See Article on Publisher Site

Abstract

PCI Express (PCIe) interface has been extensively used in high-speed digital systems for multimedia communication. With the migration of the video processing algorithms from host to embedded hardware, multi-channel video capturing systems will produce not only different channels of raw video data but also different types of auxiliary data, such as analyzed data and compressed stream. In order to display multi-channel video in real-time and explore the auxiliary data, conventional transmission strategies are no longer applicable, due to the fact that heterogeneous data will cause frequent interactions and lead to the waste of PCIe bandwidth. In this paper, an efficient PCIe transmission method for multi-channel video is presented. Firstly, for the transmission of multi-type video data, a dynamic splicing mechanism is proposed to combine the video analyzed data and the compressed stream with the raw video to avoid the individual transmission of the auxiliary data. Secondly, as the spliced data are from different channels, a conditional prefetching mechanism is employed to determine whether there exists any entire video frame in other channel buffers, so that multi-channel video data can be transmitted possibly at one time. Finally, in the host-side driver, direct kernel buffer access technique is used to improve the application I/O request packet (IRP) performance. And to ensure the transmission efficiency of the conditional prefetching, DMA circular queue buffer and timer self-feedback monitor techniques are designed to avoid the possible visit bursts and abnormal interruptions. Experimental results demonstrate that compared with the conventional methods, the proposed method reduces the interrupt interactions by 60%, increases the transmission channel number by 94%, and also increases the application IRP number by 54%. The peak transmission speed of PCIe is up to 155 MB/s, which can meet 7 channels 704 × 576 YUV raw video and its auxiliary data transmission requirements using one 1-lane PCIe endpoint.

Journal

Multimedia Tools and ApplicationsSpringer Journals

Published: Feb 13, 2017

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial