发明名称 Audio/video synchronization with no clean points
摘要 A computing system that has access to a streamed multimedia sample that is stored on a storage medium applies a zero-based presentation timestamp numbering scheme to the data packets of the multimedia sample, on-the-fly, and after each seek operation. After seeking to a desired starting point, the computing system reads ahead a maximum number of data packets within each media stream of the multimedia sample. A smallest timestamp (normalizing presentation timestamp) is identified and then subtracted from the timestamps of the data packets that are transmitted to the appropriate rendering devices, thereby creating appropriate presentation timestamps for the data packets for synchronizing the playback of the multimedia sample.
申请公布号 US7313313(B2) 申请公布日期 2007.12.25
申请号 US20020206159 申请日期 2002.07.25
申请人 MICROSOFT CORPORATION 发明人 GATES MATTHIJS A.;SRINIVASAN JAI
分类号 H04N5/91;H04N5/926;H04N7/52 主分类号 H04N5/91
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