| 摘要 |
Multibitrate (MBR) live video broadcasting is disclosed in which live video input is copied into a plurality of streams each designated for encoding into a different bitrate. The MBR broadcasting operation is made efficient by performing pre-quantization calculations only the first of the plurality of streams. The results of those calculations are then merely copied to the other streams. Quantization and encoding processes may then be applied to each of the streams to process the streams into their respective, predetermined bitrates.
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