| Adaptive progressive download based on the MPEG-4 file format |
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| 作者姓名： | FRBER Nikolaus DHLA Stefan ISSING Jochen Multimedia Transport Dept. Audio Fraunhofer Institute for Integrated Circuits IIS Erlangen Germany |
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| 作者单位： | Multimedia Transport Dept.Audio Fraunhofer Institute for Integrated Circuits IIS，Erlangen 91058，Germany，Multimedia Transport Dept.Audio，Fraunhofer Institute for Integrated Circuits IIS，Erlangen 91058，Germany，Multimedia Transport Dept.Audio，Fraunhofer Institute for Integrated Circuits IIS，Erlangen 91058，Germany |
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| 摘 要： | In this paper we describe how progressive download and adaptive streaming can be combined into a simple and efficient streaming framework. Based on the MPEG-4 file format (MP4) we use HTTP for transport and argue that these two components are sufficient for specifying an open streaming architecture. The client selects appropriate chunks from the MP4 file to be transferred based on (1) the header information (i.e. the "moov" box) in the first part of the file and (2) his observation of network throughput. The framework is completely client driven which allows for better server scalability and reduces signalling overhead. We discuss architecture and implementation issues such as complexity, interoperability and scalability and compare to 3GPP PSS Re1-6 adaptive streaming when appropriate. Measurements from a simple MP4/HTTP streaming client are presented showing that appropriate chunks are selected such that increased reliability is achieved.
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Adaptive progressive download based on the MPEG-4 file format |
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| FRBER Nikolaus,DHLA Stefan,ISSING Jochen.Adaptive progressive download based on the MPEG-4 file format[J].Journal of Zhejiang University Science,2006,7(Z1). |
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| Authors: | FRBER Nikolaus DHLA Stefan ISSING Jochen |
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| Institution: | F(A)RBER Nikolaus,D(O)HLA Stefan,ISSING Jochen |
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| Abstract: | In this paper we describe how progressive download and adaptive streaming can be combined into a simple and efficient streaming framework. Based on the MPEG-4 file format (MP4) we use HTTP for transport and argue that these two components are sufficient for specifying an open streaming architecture. The client selects appropriate chunks from the MP4 file to be transferred based on (1) the header information (i.e. the "moov" box) in the first part of the file and (2) his observation of network throughput. The framework is completely client driven which allows for better server scalability and reduces signalling overhead. We discuss architecture and implementation issues such as complexity, interoperability and scalability and compare to 3GPP PSS Re1-6 adaptive streaming when appropriate. Measurements from a simple MP4/HTTP streaming client are presented showing that appropriate chunks are selected such that increased reliability is achieved. |
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| Keywords: | HTTP-streaming Adaptive progressive download MPEG-4 file format (MP4) Moov box |
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