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Content delivery of live streams with event-adaptive encoding

專利號(hào)
US10897654B1
公開日期
2021-01-19
申請(qǐng)人
Amazon Technologies, Inc.(US WA Seattle)
發(fā)明人
Hai Wei; Yongjun Wu; Abhishek Kumar; Lei Li; Amarsingh B. Winston
IPC分類
H04N21/647; H04N21/2343; H04N21/238; H04L12/811; H04N19/50; H04L29/06
技術(shù)領(lǐng)域
encoding,live,trial,profiles,video,ladder,adaptive,parameter,bit,content
地域: WA WA Seattle

摘要

Techniques are described for optimizing event-adaptive live video encoding profiles.

說明書

As shown in FIG. 3B, an event-adapted encoding profile may be selected (326) from the set of single-segment-optimized encoding profiles (identified in 322a-322n). In some implementations, the event-adapted encoding profile may be selected based on its average performance across all of the encoded segments.

In general, the performance of a given encoding profile will vary between video segments, such that an optimal encoding profile for a first video segment may not be the same as the optimal encoding profile for a second video segment. Thus, it may be desirable to select (in 326), from amongst the encoding profiles optimized for individual encoded segments, an encoding profile with an optimized average performance across the entire set of segments, which may be referred to herein as an event-adapted encoding profile. As part of identifying an encoding profile with an optimized average performance, the performance of each single-segment-optimized encoding profile when applied to the remaining video segments may be determined (324a-324n). The performance of a given single-segment-optimized encoding profile when applied to the remaining video segments may be determined by summing the gaps (in the relevant dimensional term, whether it be distance, area, volume, or the like) between the performance of that given encoding profile and each of the performance boundaries of the various other remaining video segments.

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