Arrival process-controlled adaptive media playout with multiple thresholds for video streaming

To improve the playout quality of video streaming services, an arrival process-controlled adaptive media playout (AMP) mechanism is designed in this study. The proposed AMP scheme sets three threshold values, denoted by P n , L and H , for the playout controller to start playback and dynamically adj...

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Veröffentlicht in:Multimedia systems Jg. 18; H. 5; S. 391 - 407
Hauptverfasser: Li, Mingfu, Lin, Tsung-Wei, Cheng, Shih-Han
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Berlin/Heidelberg Springer-Verlag 01.10.2012
Springer
Schlagworte:
Applied sciences
Computer Communication Networks
Computer Graphics
Computer Science
Cryptology
Data Storage Representation
Exact sciences and technology
Operating Systems
Regular Paper
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Playout quality
Playout delay
Buffer overflow
Video streaming
Buffer underflow
Adaptive media playout
Overflow(computer arithmetics)
Performance evaluation
Streaming
Service process
Target tracking
Computer simulation
Control system
Video signal
Jitter
Frame rate
Buffer system
Algorithm
Information transmission
Video steaming
Arrival process
Numerical simulation
Delay time
ISSN:0942-4962, 1432-1882
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Beschreibung
Zusammenfassung:To improve the playout quality of video streaming services, an arrival process-controlled adaptive media playout (AMP) mechanism is designed in this study. The proposed AMP scheme sets three threshold values, denoted by P n , L and H , for the playout controller to start playback and dynamically adjust the playout rate based on the buffer fullness. In the preroll period, the playout can start only when the buffer fullness n is not less than the dynamic playback threshold P n , which is determined by the jitters of incoming video frames. In the playback period, if the buffer fullness is below L or over H , the playout rate will slow down or speed up in a quadratic manner. Otherwise, the playback speed depends on the instantaneous frame arrival rate, which is estimated by the proposed arrival process tracking algorithm. We employ computer simulations to demonstrate the performance of the proposed AMP scheme, and compare it with several conventional AMP mechanisms. Numerical results show that our AMP design can shorten the playout delay and reduce both buffer underflow and overflow probabilities. In addition, our proposed AMP also outperforms traditional AMP schemes in terms of the variance of distortion of playout and the playout curve. Hence, the proposed arrival process-controlled AMP is really an outstanding design.
ISSN:0942-4962
1432-1882
DOI:10.1007/s00530-012-0260-6