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11. 发明授权

US09246741B2 Scalable, live transcoding with support for adaptive streaming and failover 有权
标题翻译：可扩展的，实时转码，支持自适应流和故障转移
公开(公告)号：US09246741B2
公开(公告)日：2016-01-26
申请号：US13444787
申请日：2012-04-11
申请人： Krishnan Eswaran , Thierry Foucu , Jie Sun , Krishna Kumar Gadepalli , Vijnan Shastri
发明人： Krishnan Eswaran , Thierry Foucu , Jie Sun , Krishna Kumar Gadepalli , Vijnan Shastri
IPC分类号： H04N7/26 , H04L29/06 , H04N21/231 , H04N21/2343 , H04N21/845 , H04L29/14 , G06F17/30 , H04L29/08
CPC分类号： H04L69/40 , H04L29/06523 , H04L65/4015 , H04L65/602 , H04L65/607 , H04L67/2804 , H04N21/23106 , H04N21/2343 , H04N21/234309 , H04N21/8456
摘要： A system and method for a live streaming platform that can redundantly process input streams in parallel ingestion pipelines is disclosed herein. Ingested input streams in the parallel pipelines can be segmented using a segmentation function that creates identical segments in each of the streams in the pipelines. If errors occur, or there are disruptions in one or more of the input streams or pipelines, the live streaming platform can ensure that segments are identifiable and different parts of the pipelines can join a main stream at different points in time without disruption.
摘要翻译：本文公开了一种可并行摄取管道冗余地处理输入流的实况流平台的系统和方法。可以使用在管道中的每个流中创建相同段的分段功能来分割并行流水线中的输入流。如果出现错误或者在一个或多个输入流或管道中存在中断，直播流平台可以确保段是可识别的，并且管道的不同部分可以在不间断的情况下在不同的时间点加入主流。

12. 发明授权

US08752112B2 Live streaming video processing 有权
标题翻译：实时流视频处理
公开(公告)号：US08752112B2
公开(公告)日：2014-06-10
申请号：US13445620
申请日：2012-04-12
申请人： Charles Christian Krasic , Vijnan Shastri , Krishna Kumar Gadepalli , Yang Xia , Krishnan Eswaran , Wendy Tobagus
发明人： Charles Christian Krasic , Vijnan Shastri , Krishna Kumar Gadepalli , Yang Xia , Krishnan Eswaran , Wendy Tobagus
IPC分类号： H04N21/234
CPC分类号： H04N21/2187 , H04N21/234309 , H04N21/8456
摘要： Systems and methods for processing a live video stream are provided. An ingestion component receives segments of a live video stream in association with a request to process the live video stream. A control component generates an instruction graph for the live video stream based on predetermined criteria. The instruction graph defines a workflow for processing the live video stream, the workflow comprising a set of services for processing the segments. A transcoding component employs a subset of the services to process the segments based at least in part on the instruction graph and a distribution component then streams the segments to a device in response finishing process of the segments. With the live video processing system, segments of a video stream are processed and distributed as they are received. Thus segments of the video stream are processed and distributed prior to processing of the entire video stream.
摘要翻译：提供了用于处理直播视频流的系统和方法。摄取组件与处理直播视频流的请求相关联地接收实况视频流的片段。控制部件基于预定标准生成实时视频流的指令图。指令图定义了用于处理直播视频流的工作流程，该工作流包括用于处理段的一组服务。代码转换组件使用服务的子集来至少部分地基于指令图来处理段，然后分布组件在段的响应整理过程中将段流传送到设备。使用实时视频处理系统，视频流的片段在被接收时被处理和分发。因此，视频流的段在处理整个视频流之前被处理和分配。

13. 发明申请

US20130276048A1 LIVE STREAMING VIDEO PROCESSING 有权
标题翻译：现场流媒体视频处理
公开(公告)号：US20130276048A1
公开(公告)日：2013-10-17
申请号：US13445620
申请日：2012-04-12
申请人： Charles Christian Krasic , Vijnan Shastri , Krishna Kumar Gadepalli , Yang Xia , Krishnan Eswaran , Wendy Tobagus
发明人： Charles Christian Krasic , Vijnan Shastri , Krishna Kumar Gadepalli , Yang Xia , Krishnan Eswaran , Wendy Tobagus
IPC分类号： H04N21/63
CPC分类号： H04N21/2187 , H04N21/234309 , H04N21/8456
摘要： Systems and methods for processing a live video stream are provided. An ingestion component receives segments of a live video stream in association with a request to process the live video stream. A control component generates an instruction graph for the live video stream based on predetermined criteria. The instruction graph defines a workflow for processing the live video stream, the workflow comprising a set of services for processing the segments. A transcoding component employs a subset of the services to process the segments based at least in part on the instruction graph and a distribution component then streams the segments to a device in response finishing process of the segments. With the live video processing system, segments of a video stream are processed and distributed as they are received. Thus segments of the video stream are processed and distributed prior to processing of the entire video stream.
摘要翻译：提供了用于处理直播视频流的系统和方法。摄取组件与处理直播视频流的请求相关联地接收实况视频流的片段。控制部件基于预定标准生成实时视频流的指令图。指令图定义了用于处理直播视频流的工作流程，该工作流包括用于处理段的一组服务。代码转换组件使用服务的子集来至少部分地基于指令图来处理段，然后分布组件在段的响应整理过程中将段流传送到设备。使用实时视频处理系统，视频流的片段在被接收时被处理和分发。因此，视频流的段在处理整个视频流之前被处理和分配。

14. 发明申请

US20130268688A1 SCALABLE ROBUST LIVE STREAMING SYSTEM 有权
标题翻译：可扩展的强大的流动系统
公开(公告)号：US20130268688A1
公开(公告)日：2013-10-10
申请号：US13439678
申请日：2012-04-04
申请人： Francisco Manuel Galanes , Vijnan Shastri , Pawel Jurczyk
发明人： Francisco Manuel Galanes , Vijnan Shastri , Pawel Jurczyk
IPC分类号： G06F15/16
CPC分类号： H04L65/60 , H04L43/16 , H04L47/10 , H04L65/4084 , H04L65/605 , H04N21/23116 , H04N21/23439 , H04N21/6473 , H04N21/8456
摘要： A system and method for a live streaming platform that can redundantly process input streams in parallel ingestion pipelines is disclosed herein. Ingested input streams in the parallel pipelines can be segmented using a stable segmentation function that creates identical segments in each of the streams in the pipelines. If errors occur, or there are disruptions in one or more of the input streams or pipelines, the live streaming platform can switch between the input streams on a per segment basis to provide reliable streaming feeds to a content distribution network. A master stream can be constructed from each of the master segments per a time period based on a reliability of each of the input streams and segments. Practicing pipeline affinity by selecting subsequent master segments from the same pipeline can minimize glitches.
摘要翻译：本文公开了一种可并行摄取管道冗余地处理输入流的实况流平台的系统和方法。可以使用稳定的分段功能来分割并行流水线中的输入流，从而在管道中的每个流中创建相同的分段。如果出现错误或者在一个或多个输入流或管道中存在中断，直播流平台可以在每个段的基础上在输入流之间切换，以向内容分发网络提供可靠的流馈送。可以基于每个输入流和段的可靠性，每个时间段从每个主分段构建主流。通过从同一管道中选择后续的主段来实现流水线的相似性可以最大限度地减少故障。

15. 发明授权

US08982185B1 Systems and methods for 2D-to-3D conversion 有权
标题翻译： 2D到3D转换的系统和方法
公开(公告)号：US08982185B1
公开(公告)日：2015-03-17
申请号：US13408960
申请日：2012-02-29
申请人： Vijnan Shastri , Jonathan Huang , Sam Kvaalen , Debargha Mukherjee , Chen Wu
发明人： Vijnan Shastri , Jonathan Huang , Sam Kvaalen , Debargha Mukherjee , Chen Wu
IPC分类号： H04N13/00 , H04N15/00
CPC分类号： H04N13/139 , H04N13/167 , H04N13/356 , H04N21/23418 , H04N21/2343 , H04N21/816 , H04N21/854
摘要： Systems and methods can facilitate identifying 2D content in media that is suitable for conversion into 3D content, and converting the suitable 2D content into 3D content. The identifying can be based on quality criteria applied to the 2D content. For 2D content converted into 3D content, a user can be offered a choice between viewing the content in its original 2D form, or viewing the content in its converted, 3D form. The systems and methods can thereby provide users with greater choice of content and an enhanced viewing experience.
摘要翻译：系统和方法可以促进识别适合于转换成3D内容的媒体中的2D内容，以及将合适的2D内容转换为3D内容。识别可以基于应用于2D内容的质量标准。对于转换为3D内容的2D内容，可以向用户提供以其原始2D形式查看内容或以其转换的3D形式查看内容的选择。因此，系统和方法可以为用户提供更多的内容选择和增强的观看体验。

16. 发明授权

US08767825B1 Content-based adaptive video transcoding framework 有权
标题翻译：基于内容的自适应视频转码框架
公开(公告)号：US08767825B1
公开(公告)日：2014-07-01
申请号：US12627713
申请日：2009-11-30
申请人： Huisheng Wang , Xiaoquan Yi , Vijnan Shastri
发明人： Huisheng Wang , Xiaoquan Yi , Vijnan Shastri
IPC分类号： H04N7/18
CPC分类号： H04N19/40 , H04N19/115 , H04N19/124 , H04N19/137 , H04N19/14 , H04N19/149 , H04N19/172 , H04N19/19
摘要： A system and method provide a video coding system for adaptively transcoding videos based on video coding complexity (VCC). A VCC engine of the system is configured to generate a measure of how difficult to encode a source video based on a trained VCC model. A video rate-distortion modeling engine of the system is configured to estimate a rate-distortion model and a scaling model. The VCC model, rate-distortion model and the scaling model are trained on a video corpus of the system. The trained VCC model, rate-distortion model and the scaling model are used by an adaptive bitrate transcoding sub-system to transcode a source video with an optimized bitrate and visual quality. The trained VCC model, rate-distortion model and the scaling model are further used by an adaptive resolution transcoding sub-system to transcode a source video with an optimized resolution and visual quality.
摘要翻译：一种系统和方法提供一种视频编码系统，用于基于视频编码复杂度（VCC）自适应地对视频进行代码转换。该系统的VCC引擎被配置为产生基于经过训练的VCC模型对源视频进行编码困难的度量。系统的视频速率失真建模引擎被配置为估计速率失真模型和缩放模型。在系统的视频语料库上训练VCC模型，速率失真模型和缩放模型。经过训练的VCC模型，速率失真模型和缩放模型由自适应比特率转码子系统用于以优化的比特率和视觉质量对源视频进行代码转换。经过训练的VCC模型，速率失真模型和缩放模型进一步由自适应分辨率转码子系统用于以优化的分辨率和视觉质量对源视频进行转码。

17. 发明授权

US08521541B2 Adaptive audio transcoding 有权
标题翻译：自适应音频转码
公开(公告)号：US08521541B2
公开(公告)日：2013-08-27
申请号：US12917688
申请日：2010-11-02
申请人： Xiaoquan Yi , Huisheng Wang , Vijnan Shastri
发明人： Xiaoquan Yi , Huisheng Wang , Vijnan Shastri
IPC分类号： G10L19/02
CPC分类号： G10L19/173 , G10L25/81
摘要： A system and method provide an audio/video coding system for adaptively transcoding audio streams based on content characteristics of the audio streams. An audio stream metadata extraction module of the system is configured to extract metadata of a source audio stream. An audio stream classification module of the system is configured to classify the source audio stream into one of the several audio content categories based on the metadata of the source audio stream. An adaptive audio encoder of the system is configured to determine one or more transcoding parameters including target bitrate and sampling rate based on the metadata and classification of the source audio stream. An adaptive audio transcoder of the system is configured to transcode the source audio stream into an output audio stream using the transcoding parameters.
摘要翻译：一种系统和方法提供了一种音频/视频编码系统，用于基于音频流的内容特征来自适应地对音频流进行转码。系统的音频流元数据提取模块被配置为提取源音频流的元数据。系统的音频流分类模块被配置为基于源音频流的元数据将源音频流分类成多个音频内容类别中的一个。系统的自适应音频编码器被配置为基于源音频流的元数据和分类来确定包括目标比特率和采样率的一个或多个代码转换参数。该系统的自适应音频代码转换器被配置为使用代码转换参数将源音频流转码为输出音频流。

18. 发明申请

US20080196099A1 SYSTEMS AND METHODS FOR DETECTING AND BLOCKING MALICIOUS CONTENT IN INSTANT MESSAGES 审中-公开
标题翻译：用于检测和阻塞即时消息中的恶意内容的系统和方法
公开(公告)号：US20080196099A1
公开(公告)日：2008-08-14
申请号：US11969768
申请日：2008-01-04
申请人： Vijnan Shastri
发明人： Vijnan Shastri
IPC分类号： G06F9/00
CPC分类号： H04L41/0893 , H04L51/04 , H04L51/12 , H04L63/0227 , H04L63/0281 , H04L63/102 , H04L63/1408 , H04L63/1441 , H04L69/16 , H04L69/163
摘要： A protocol management system comprises a gateway configured to receive all instant message traffic flowing into and out of a local network and a security module configured to check each instant message coming into the local network via the gateway, determine whether the instant message includes a URL, if so determine whether the URL is in a blacklist and send a challenge to a sender associated with the instant message when it is determined that the URL is not in the blacklist.
摘要翻译：协议管理系统包括被配置为接收流入和流出本地网络的所有即时消息业务的网关和被配置为经由网关检查进入本地网络的每个即时消息的安全模块，确定即时消息是否包括URL，如果确定URL是否在黑名单中，并且当确定URL不在黑名单中时，向与即时消息相关联的发送者发送质询。

19. 发明授权

US09338467B1 Parallel video transcoding 有权
标题翻译：并行视频转码
公开(公告)号：US09338467B1
公开(公告)日：2016-05-10
申请号：US13185272
申请日：2011-07-18
申请人： Krishna K. Gadepalli , Christophe Chaland , Rushabh A. Doshi , Huisheng Wang , Wendy Tobagus , Vijnan Shastri , Debargha Mukherjee
发明人： Krishna K. Gadepalli , Christophe Chaland , Rushabh A. Doshi , Huisheng Wang , Wendy Tobagus , Vijnan Shastri , Debargha Mukherjee
IPC分类号： H04N19/40 , H04N19/85
CPC分类号： H04N19/436 , H04N19/127 , H04N19/14 , H04N19/184 , H04N19/40 , H04N19/85
摘要： A system and method provides transcoding a video in parallel by multiple transcoders based on a measure of video coding complexity (VCC). The system has a video pre-processing module, a master transcoder, a transcoding controller and multiple transcoders. The video pre-processing module transcodes a source video into an intermediate video. The master transcoder partitions the intermediate video into multiple transcoding units, where a transcoding unit identifies a portion of data of the intermediate video for transcoding. The master transcoder further generates a transcoding request for each transcoding unit. The transcoding controller distributes the transcoding units to the multiple transcoders, which transcode the data of the transcoding units in parallel into transcoded data.
摘要翻译：基于视频编码复杂度（VCC）的测量，系统和方法通过多个代码转换器并行地对视频进行代码转换。该系统具有视频预处理模块，主代码转换器，代码转换控制器和多个代码转换器。视频预处理模块将源视频转码为中间视频。主代码转换器将中间视频分割成多个代码转换单元，其中代码转换单元识别用于代码转换的中间视频的一部分数据。主代码转换器还为每个代码转换单元生成代码转换请求。代码转换控制器将代码转换单元分配给多个代码转换器，其将代码转换单元的数据并行转码为代码转换的数据。

20. 发明授权

US08897370B1 Bitrate video transcoding based on video coding complexity estimation 有权
标题翻译：基于视频编码复杂度估计的比特率视频转码
公开(公告)号：US08897370B1
公开(公告)日：2014-11-25
申请号：US12627700
申请日：2009-11-30
申请人： Huisheng Wang , Xiaoquan Yi , Vijnan Shastri
发明人： Huisheng Wang , Xiaoquan Yi , Vijnan Shastri
IPC分类号： H04N11/02
CPC分类号： H04N19/59 , H04N19/132 , H04N19/137 , H04N19/139 , H04N19/14 , H04N19/147 , H04N19/149 , H04N19/157 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/40
摘要： A system and method provides content-adaptive bitrate video transcoding of a source video for a video hosting service. The system is coupled to a video coding complexity engine and video rate-distortion modeling engine of the video hosting service. The system is configured to receive the video coding complexity score of the source video and a trained rate-distortion model and a scaling model. A target bitrate estimation module of the system is configured to calculate an initial target bitrate based on the video coding complexity using the trained rate-distortion model. A bitrate refinement module of the system is configured to adjust the initial target bitrate with respect to the resolution and/or frame rate of the transcoded source video. An adaptive video coder of the system is configured to transcode the source video with the adjusted target bitrate.
摘要翻译：系统和方法为视频托管服务的源视频提供内容自适应比特率视频转码。该系统耦合到视频托管服务的视频编码复杂度引擎和视频速率失真建模引擎。该系统被配置为接收源视频的视频编码复杂度分数和经过训练的速率失真模型和缩放模型。该系统的目标比特率估计模块被配置为基于使用训练的速率 - 失真模型的视频编码复杂度来计算初始目标比特率。系统的比特率细化模块被配置为相对于代码转换的源视频的分辨率和/或帧速率来调整初始目标比特率。该系统的自适应视频编码器被配置为用调整的目标比特率对源视频进行转码。

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