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公开(公告)号:US11102260B1
公开(公告)日:2021-08-24
申请号:US16948571
申请日:2020-09-23
Applicant: Amazon Technologies, Inc.
Inventor: Yongjun Wu , Ravindra Ganti , Charles M. Cordova , Nicholas Sidwell , John F. X. Gaquin
IPC: H04N21/647 , H04L29/06
Abstract: Methods and apparatus are described for providing thinned manifests during a live event. As network usage of a regional internet service provider (ISP) or content delivery network (CDN) becomes unsustainable, new streaming sessions for a live event are provided a thinned manifest that does not have playback options for bitrates above a bitrate limit.
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公开(公告)号:US10965966B1
公开(公告)日:2021-03-30
申请号:US16037365
申请日:2018-07-17
Applicant: Amazon Technologies, Inc.
Inventor: Yongjun Wu , Kyle Alexander Woo , Harrison Clement
IPC: H04N7/10 , H04N21/234 , H04L29/06 , H04N21/454 , H04N21/2187
Abstract: Systems, methods, and computer-readable media are disclosed for dynamically inserting secondary content into a live stream or a video on demand (VOD). The secondary content can include, for example, a public service announcement or warning, censoring content, live or prerecorded commentary, an advertisement, or any other type of content to be integrated with or inserted into the main content. Example methods may include receiving a content stream including a first fragment having a first duration and a second fragment having the first duration. Certain methods may include determining an increased quality of service associated with encoding the content stream into fragments having a second duration. Certain methods may include generating, based at least in part on the increased quality of service, a third fragment having the second duration, and sending the content stream having the third fragment to a user device.
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公开(公告)号:US10958947B1
公开(公告)日:2021-03-23
申请号:US16817129
申请日:2020-03-12
Applicant: Amazon Technologies, Inc.
Inventor: Hai Wei , Brian Manuel Alvarez , Yongjun Wu , Abhishek Kumar , Lei Li
IPC: H04N7/173 , H04N21/2187 , H04N21/236 , H04N21/24 , H04N21/2662
Abstract: Techniques are described for creating and using playback-conditions-adaptive live video encoding ladders.
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公开(公告)号:US10897658B1
公开(公告)日:2021-01-19
申请号:US16394757
申请日:2019-04-25
Applicant: Amazon Technologies, Inc.
Inventor: Manivel Sethu , Lokesh Amarnath Ravindranathan , Yongjun Wu
Abstract: Methods and apparatus are described for automating aspects of the annotation of a media presentation. Events are identified that relate to entities associated with the scenes of the media presentation. These events are time coded relative to the media timeline of the media presentation and might represent, for example, the appearance of a particular cast member or playback of a particular music track. The video frames of the media presentation are processed to identify visually similar intervals that may serve as or be used to identify contexts (e.g., scenes) within the media presentation. Relationships between the event data and the visually similar intervals or contexts are used to identify portions of the media presentation during which the occurrence of additional meaningful events is unlikely. This information may be surfaced to a human operator tasked with annotating the content as an indication that part of the media presentation may be skipped.
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公开(公告)号:US10897654B1
公开(公告)日:2021-01-19
申请号:US16588652
申请日:2019-09-30
Applicant: Amazon Technologies, Inc.
Inventor: Hai Wei , Yongjun Wu , Abhishek Kumar , Lei Li , Amarsingh B. Winston
IPC: H04N21/647 , H04N21/2343 , H04N21/238 , H04L12/811 , H04N19/50 , H04L29/06
Abstract: Techniques are described for optimizing event-adaptive live video encoding profiles.
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公开(公告)号:US10893331B1
公开(公告)日:2021-01-12
申请号:US16218282
申请日:2018-12-12
Applicant: Amazon Technologies, Inc.
Inventor: Avinash Kumar , Ravindra Ganti , Yongjun Wu , Lei Li , Abhishek Kumar , Nicholas Lovejoy , Patrick Joseph Lewis
IPC: H04N21/462 , H04N21/488 , H04N21/8547 , H04N21/258 , H04N21/81 , H04N21/658
Abstract: Methods and apparatus are described for reducing subtitle information for just-after-broadcast (JAB) content. Redundant information in subtitle entries is removed so that some client devices with limited memory can handle the single subtitle file that is delivered with JAB content.
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公开(公告)号:US10893310B1
公开(公告)日:2021-01-12
申请号:US16427807
申请日:2019-05-31
Applicant: Amazon Technologies, Inc.
Inventor: Yongjun Wu , Sitaraman Ganapathy , Zhi Xu , Lovish Dhawan , Ivan Yeo , Yashodhan Gokhale , Jed Hoffmann
IPC: H04N21/238 , H04N21/239 , H04N21/235 , H04N21/2343 , H04N21/2387 , H04N21/2187 , H04N21/6587 , H04N21/24 , H04N21/2747
Abstract: Techniques enabled by the present disclosure allow a media content service to support different playback modes in the presence of variations in media content asset types and viewer device capabilities. The techniques enabled by the present disclosure further allow encoding media content with playback bitrates targeted for streaming playback mode and playback bitrates targeted for download playback mode, and managing manifest data to allow viewer devices to select between different playback bitrates for a particular playback mode with greater precision.
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公开(公告)号:US10743003B1
公开(公告)日:2020-08-11
申请号:US15255062
申请日:2016-09-01
Applicant: Amazon Technologies, Inc.
Inventor: Charles Benjamin Franklin Waggoner , Yongjun Wu
Abstract: Techniques are described that enable virtual reality content to be delivered using a video codec that operates according to a scalable video encoding standard. These techniques include selectively downloading and decoding frames of video content.
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公开(公告)号:US10595055B2
公开(公告)日:2020-03-17
申请号:US15960186
申请日:2018-04-23
Applicant: Amazon Technologies, Inc.
Inventor: Tarun Jindal , Ron Searl , Kyle Alexander Woo , Abhishek Kumar , Yongjun Wu
IPC: H04N21/234 , H04N21/81 , H04L29/06 , H04L29/08
Abstract: Techniques are described for providing media presentations that include content originating from multiple sources in ways that are effectively transparent to end user devices. Manifest data provided to an end user device include a key encoded in the URL for each of the content fragments. The key encodes one or more interstitial periods of secondary content within the overall presentation of primary content. When a media server receives a content request from the end user device, the media server determines from the key encoded in the URL and the range of content requested whether the request corresponds to the primary content or the secondary content.
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公开(公告)号:US10467775B1
公开(公告)日:2019-11-05
申请号:US15585610
申请日:2017-05-03
Applicant: Amazon Technologies, Inc.
Inventor: Charles Benjamin Franklin Waggoner , Yongjun Wu
Abstract: Techniques are described for identifying pixel locations using a transformation function. A transformation function is identified based on the projection space of a 2D representation, and pixel locations are generated using the transformation function.
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