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    Constant quality video encoding with encoding parameter fine-tuning
    2.
    发明授权
    Constant quality video encoding with encoding parameter fine-tuning 有权

    公开(公告)号：US10924812B2

    公开(公告)日：2021-02-16

    申请号：US15897376

    申请日：2018-02-15

    Applicant: Cisco Technology, Inc.

    Inventor： Samie Beheydt ,  Joel Warren Schoenblum ,  Sangeeta Ramakrishnan

    IPC: H04N7/173 ,  H04N21/6379 ,  H04N21/24 ,  H04N21/2662 ,  H04N21/2343

    Abstract: Constant quality video encoding with encoding parameter fine-tuning may be provided. First, an aggregation window comprising a plurality of video frames from a transport stream may be determined. Next, a plurality of video quality values may be determined where the plurality of video quality values indicate a video quality for corresponding respective ones of the plurality of video frames in the aggregation window. Then a determined conformance rate value for the aggregation window may be determined. The determined conformance rate value may indicate a number of the plurality of video quality values that have one of the following characteristics: equal to the target video quality value and greater than the target video quality value. The determined conformance rate value may then be used to adjust at least one of the encoding parameters used in the constant quality encoding of the source.

    Constant Quality Video Encoding with Encoding Parameter Fine-Tuning
    3.
    发明申请
    Constant Quality Video Encoding with Encoding Parameter Fine-Tuning 审中-公开

    公开(公告)号：US20190253763A1

    公开(公告)日：2019-08-15

    申请号：US15897376

    申请日：2018-02-15

    Applicant: Cisco Technology, Inc.

    Inventor： Samie Beheydt ,  Joel Warren Schoenblum ,  Sangeeta Ramakrishnan

    IPC: H04N21/6379 ,  H04N21/2343 ,  H04N21/2662 ,  H04N21/24

    CPC classification number: H04N21/6379 ,  H04N21/2343 ,  H04N21/2402 ,  H04N21/2662

    Abstract: Constant quality video encoding with encoding parameter fine-tuning may be provided. First, an aggregation window comprising a plurality of video frames from a transport stream may be determined. Next, a plurality of video quality values may be determined where the plurality of video quality values indicate a video quality for corresponding respective ones of the plurality of video frames in the aggregation window. Then a determined conformance rate value for the aggregation window may be determined. The determined conformance rate value may indicate a number of the plurality of video quality values that have one of the following characteristics: equal to the target video quality value and greater than the target video quality value. The determined conformance rate value may then be used to adjust at least one of the encoding parameters used in the constant quality encoding of the source.

    Employing helper transport streams for re-multiplexing
    4.
    发明授权
    Employing helper transport streams for re-multiplexing 有权
    采用辅助传输流进行重新复用

    公开(公告)号：US09538210B2

    公开(公告)日：2017-01-03

    申请号：US14948551

    申请日：2015-11-23

    Applicant: Cisco Technology, Inc.

    Inventor： Samie Beheydt ,  Joachim M. Vanhaecke

    IPC: H04L12/28 ,  H04N21/236 ,  H04N21/434 ,  H04L12/26 ,  H04H20/67

    CPC classification number: H04N21/23608 ,  H04H20/67 ,  H04L43/106 ,  H04N21/4344

    Abstract: In one system embodiment, a master re-multiplexer may be configured to receive an indexed transport stream, re-multiplex the indexed transport stream by performing a set of re-multiplexing operations, generate a helper transport stream, the helper transport stream comprising a description of the set of operations, wherein the set of operations comprises both program clock reference (PCR) re-stamping and inserting packets, and providing the helper transport stream over a communications network to plural remote re-multiplexers capable of identically re-multiplexing the indexed transport stream based on the helper transport stream.

    Abstract translation: 在一个系统实施例中，主重新复用器可以被配置为接收索引的传输流，通过执行一组重新复用操作来重新复用索引的传输流，生成辅助传输流，所述辅助传输流包括描述 所述操作集合包括程序时钟参考（PCR）重新标记和插入分组两者，以及通过通信网络将辅助传输流提供给能够相同地重新复用索引的多个远程重新复用器 基于辅助传输流的传输流。

    Latency Reduction by Sending Audio and Metadata Ahead of Time
    5.
    发明申请
    Latency Reduction by Sending Audio and Metadata Ahead of Time 审中-公开

    公开(公告)号：US20190190975A1

    公开(公告)日：2019-06-20

    申请号：US15842945

    申请日：2017-12-15

    Applicant: Cisco Technology, Inc.

    Inventor： Samie Beheydt ,  Jan Armand Josefine De Smet ,  Henk Derudder

    IPC: H04L29/06

    Abstract: Latency reduction by sending audio and metadata ahead of time may be provided. First, an encoder may receive a source. Next, the encoder may create a transport stream from the source. The transport stream may comprise a plurality of first data units and a plurality of second data units. The plurality of second data units may respectively correspond to the plurality of first data units. The plurality of first data units are preceded in time in the transport stream by their respective corresponding ones of the plurality of second data units. A packager may then receive the transport stream and package data chunks from the transport stream.

    Remote re-multiplexing with packet inclusion
    9.
    发明授权
    Remote re-multiplexing with packet inclusion 有权
    远程重新复用与分组包含

    公开(公告)号：US09226008B2

    公开(公告)日：2015-12-29

    申请号：US13969897

    申请日：2013-08-19

    Applicant: Cisco Technology, Inc.

    Inventor： Samie Beheydt ,  Joachim M. Vanhaecke

    IPC: H04L12/28 ,  H04N21/236 ,  H04N21/434 ,  H04H20/67

    CPC classification number: H04N21/23608 ,  H04H20/67 ,  H04L43/106 ,  H04N21/4344

    Abstract: In one system embodiment, a master re-multiplexer may be configured to receive an indexed transport stream, re-multiplex the indexed transport stream by performing a set of re-multiplexing operations, generate a helper transport stream, the helper transport stream comprising a description of the set of operations, wherein the set of operations comprises both program clock reference (PCR) re-stamping and inserting packets, and providing the helper transport stream over a communications network to plural remote re-multiplexers capable of identically re-multiplexing the indexed transport stream based on the helper transport stream.

    Abstract translation: 在一个系统实施例中，主重新复用器可以被配置为接收索引的传输流，通过执行一组重新复用操作来重新复用索引的传输流，生成辅助传输流，所述辅助传输流包括描述 所述操作集合包括程序时钟参考（PCR）重新标记和插入分组两者，以及通过通信网络将辅助传输流提供给能够相同地重新复用索引的多个远程重新复用器 基于辅助传输流的传输流。

    Splice Signalling Buffer Characteristics
    10.
    发明申请
    Splice Signalling Buffer Characteristics 审中-公开
    接头信令缓冲器特性

    公开(公告)号：US20150127847A1

    公开(公告)日：2015-05-07

    申请号：US14591037

    申请日：2015-01-07

    Applicant: Cisco Technology, Inc.

    Inventor： Arturo A. Rodriguez ,  Samie Beheydt ,  Jan Louis De Lameillieure ,  James Ka Sin Au

    IPC: H04L29/06

    CPC classification number: H04L65/607 ,  H04L65/4069 ,  H04L65/601 ,  H04N21/23424 ,  H04N21/44016

    Abstract: In one method embodiments, providing a transport stream to a client device, the transport stream comprising a head stream and a tail stream, the head stream and the tail stream each comprising a compressed video sequence; providing information in a transport stream packet associated with the head stream, the information configured to cause the client device to selectively control an output of at least one of a plurality of pictures of the head stream yet to be output from a decoded picture buffer (DPB) at an out-point from the head stream to the trail stream.

    Abstract translation: 在一种方法实施例中，向客户端设备提供传输流，所述传输流包括头流和尾流，所述头流和尾流各自包括压缩视频序列; 在与所述头流相关联的传输流分组中提供信息，所述信息被配置为使得所述客户端设备选择性地控制要从解码图像缓冲器（DPB）输出的所述头流的多个图像中的至少一个的输出 ）在从头流到尾迹流的出点处。

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