发明授权
US08379851B2 Optimized client side rate control and indexed file layout for streaming media
有权
针对流媒体优化客户端速率控制和索引文件布局
- 专利标题: Optimized client side rate control and indexed file layout for streaming media
- 专利标题(中): 针对流媒体优化客户端速率控制和索引文件布局
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申请号: US12119364申请日: 2008-05-12
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公开(公告)号: US08379851B2公开(公告)日: 2013-02-19
- 发明人: Sanjeev Mehrotra , Kishore Kotteri , Bharath Siravara , Thomas W. Holcomb , Hui Gao , Serge Smirnov
- 申请人: Sanjeev Mehrotra , Kishore Kotteri , Bharath Siravara , Thomas W. Holcomb , Hui Gao , Serge Smirnov
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 代理机构: Klarquist Sparkman, LLP
- 主分类号: H04N7/167
- IPC分类号: H04N7/167 ; G06F15/16
摘要:
An indexed file layout, comprising index information, is defined for segmented streaming of multimedia content. The index information can comprise program description information and streaming segment index information. In addition, the layout can comprise files containing streaming segments of the program, where the streaming segments are each encoded at one or more bitrates independently of other streaming segments of the program. The layout supports client switching between different bitrates at segment boundaries. Optimized client-side rate control of streaming content can be provided by defining a plurality of states, selecting available paths based on constraint conditions, and selecting a best path through the states (e.g., based on a distortion measure). In one client-side rate control solution states correspond to a specific bitrate of a specific streaming segment, and in another client-side rate control solution states correspond to a measure of client buffer fullness.