发明名称 |
DYNAMIC BIT RATE ADAPTATION OVER BANDWIDTH VARYING CONNECTION |
摘要 |
Audio and video streams of a media file are transcoded just-in-time by keeping the transcoding process synchronized to a wall clock. The transcoding is initially configured slightly faster than real-time. The transcoded frames are pushed from the transcoder through a variable bandwidth connection as soon as they are transcoded. Transcoding is then monitored periodically to assess the bandwidth that was available during the transmission of a transcoded buffer. Two time intervals are measured: a buffer interval which is the difference in the transcoded buffer timestamps of the previous two transmissions, and a clock interval corresponding to the real time transmission time of the last transcoded buffer. If a significant difference is observed, the transcoder bit rate is adjusted by a factor that is derived from that difference.
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申请公布号 |
US2013044801(A1) |
申请公布日期 |
2013.02.21 |
申请号 |
US201113210652 |
申请日期 |
2011.08.16 |
申请人 |
COTE SEBASTIEN;KRAUSE JEAN-NOEL |
发明人 |
COTE SEBASTIEN;KRAUSE JEAN-NOEL |
分类号 |
H04N7/26 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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