Dissertation > Excellent graduate degree dissertation topics show

Dsign and Implementation of Audio and Video Decoding Player Software Based on H.264

Author: HanQuanSheng
Tutor: XiaoZuo
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: AV decoder H.264/AVC multi-thread DirectDraw overlay
CLC: TN919.81
Type: Master's thesis
Year: 2012
Downloads: 71
Quote: 0
Read: Download Dissertation

Abstract


Along with the rapid development of the information technology (IT), the Multi-media technology has already become the new communication method. The data of audio and video signal included in the multi-media provide people with a great information. Thanks to the advancement of computer technology, telecommunication technology, microelectronics and Internet technology, digital audio/video decoding chips arises at the historic moment, which makes the application of multimedia communication system more extensive. Due to some non-standard communication protocol added during the h.264video hardware encoding process, which is designed and realized by adopting audio and video decoding chips Hi3511and FPGA, the conventional video decoding software can not carry out decoding rightly and meet the control of decoding demand, therefore the specific audio and video decoding player software system is designed and implemented in this paper. The system accomplishs reading data from h.264format streaming files that comes from the output of Hi3511encoding chip for decoding and image display, besides it also contains playing, pause, stop, step back/forward frame by frame, screenshots, saving files for a certain format conversion according to the need during the playing,and so on.First of all, the fundamental principles of H.264/AVC video compression standards and G-system audio signal encoding standards are introduced in the paper. Then, the design and implement of AV decoders based on the above standards are researched, including the system’s overall design plan, software function, AV decoding procedure, image display and audio card sounding. In the process of AV decoding, multi-thread is used while FIFO technology is used to manage the data. In the image display process, DirectDtaw technology is adopted, especially, its overylay technology is used to solve the tearing phenomenon that results from the mismatching between the DirectDraw refresh rate and the screen update rate when the image is rapidly moving.Experimental results show when the resolution is720×576,the designed X Stream Player in the paper is able to realize the real-time decoding at25frame per second. At the same time, the decoded images show that adopting the overlay technology can get better display image performance than using DirectDraw technology directly especially for the fast moving image.

Related Dissertations

  1. The Optimization of AVS Video Decoder on the PC Platform and Improvement of Field Decoding,TN919.81
  2. Rate-distortion Optimization Based Rate Control,TN919.81
  3. Research on Intelligent Learning-Based Multi-Sensor Target Recognition and Tracking System,TP391.41
  4. Mine water inrush investigation Risk Assessment,TD745
  5. Routing Technology Research for Application-layer Multicast of Overlay Network Based on IPv6 Environment,TP393.02
  6. Analysis on Condition of Existing Cement Concrete Pavement and Quality Control of Asphalt Overlay Construction,U416.217
  7. Rocket digital intelligent data evaluation system,TP311.52
  8. Research on Video Compression Algorithm Based on Multi-core Computing Platform,TN919.81
  9. Research on Mode Decision Algorithm for H.264/AVC Intra Prediction,TN919.81
  10. Study of Adaptive Motion Estimation in H.264/AVC,TN919.81
  11. Polling IP -based network protocol implementations,TP311.52
  12. Research on Overlay Network Based on Video Surveillance System,TP277
  13. Design and implementation of VHF direction finding equipment terminal handling,TP274.5
  14. Research on Error Resilience Techniques for H.264 Video Transmission over Wireless Networks,TN919.81
  15. Research on Mesh-based P2P Live Streaming Technology in Heterogeneous Environment,TP393.02
  16. Drift compensation based on motion vector and H.264 video watermarking algorithm,TP309.7
  17. Low Complexity H.264/AVC Encoding and Transcoding,TN919.81
  18. Groundwater Vulnerability Assessment Based on Numerical Simulation,P641.8
  19. Anti - error-free transmission of wireless video technology,TN919.81
  20. Research and Design on VLSI Architecture Supporting MBAFF Motion Estimation Engine,TN47
  21. Video Object Segmentation in H.264/AVC Compressed Domain,TP391.41

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Image communication, multimedia communication > Image coding
© 2012 www.DissertationTopic.Net  Mobile