公开(公告)号：US10448069B2

公开(公告)日：2019-10-15

申请号：US15017581

申请日：2016-02-05

Applicant: Cisco Technology, Inc.

Inventor： Arturo A. Rodriguez ,  Kevin Murray ,  Hsiang-Yeh Hwang ,  Akira Osamoto

IPC: H04N21/2387 ,  H04N21/845 ,  H04N21/6587 ,  H04N19/503 ,  H04N19/70 ,  H04N19/44 ,  H04N19/65 ,  H04N19/46 ,  H04N19/593 ,  H04N5/783 ,  H04N21/438 ,  H04N19/423

Abstract: Methods and systems for processing a video stream are disclosed. A first tier value may be assigned to each of a plurality of SHRAP pictures in a first video stream. A reference tier value may be assigned to pictures in the first video stream that may be used as reference pictures. A plurality of discard tier values may be assigned to pictures in the first video stream that may be discarded during trick mode operations and do not depend on other pictures assigned one of the plurality of discard tier values. A trick mode operation may then be performed, wherein the presentation of pictures in the first video stream is dependent upon assignment of tier values.

公开(公告)号：US20160234527A1

公开(公告)日：2016-08-11

申请号：US15017572

申请日：2016-02-05

Applicant: Cisco Technology, Inc.

Inventor： Arturo A. Rodriguez ,  Kevin Murray ,  Hsiang-Yeh Hwang ,  Akira Osamoto

IPC: H04N19/70 ,  H04N19/593 ,  H04N21/2387 ,  H04N19/44 ,  H04N5/783 ,  H04N19/46 ,  H04N19/503

Abstract: Embodiments of the present disclosure specify methods and systems for processing a video stream. For example, a video stream may be received at a video processing device. The video stream may comprise video usability syntax elements. The video usability syntax elements may comprise at least a first flag indicative of whether HRD parameters are present for one of fixed frame rate processing or low delay mode processing. The video usability syntax elements may also comprise at least a second flag indicative of whether the video stream comprises field-coded video sequences.

Abstract translation: 本公开的实施例指定用于处理视频流的方法和系统。 例如，可以在视频处理设备处接收视频流。 视频流可以包括视频可用性语法元素。 视频可用性语法元素可以至少包括指示HRD参数是否存在于固定帧速率处理或低延迟模式处理之一中的第一标志。 视频可用性语法元素还可以包括指示视频流是否包括场编码视频序列的至少第二标志。

公开(公告)号：US10798432B2

公开(公告)日：2020-10-06

申请号：US15017572

申请日：2016-02-05

Applicant: Cisco Technology, Inc.

Inventor： Arturo A. Rodriguez ,  Kevin Murray ,  Hsiang-Yeh Hwang ,  Akira Osamoto

IPC: H04N19/70 ,  H04N19/593 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N21/2387 ,  H04N5/783 ,  H04N21/845 ,  H04N19/65 ,  H04N21/438 ,  H04N21/6587 ,  H04N19/423

Abstract: Embodiments of the present disclosure specify methods and systems for processing a video stream. For example, a video stream may be received at a video processing device. The video stream may comprise video usability syntax elements. The video usability syntax elements may comprise at least a first flag indicative of whether HRD parameters are present for one of fixed frame rate processing or low delay mode processing. The video usability syntax elements may also comprise at least a second flag indicative of whether the video stream comprises field-coded video sequences.

公开(公告)号：US20160234537A1

公开(公告)日：2016-08-11

申请号：US15017581

申请日：2016-02-05

Applicant: Cisco Technology, Inc.

Inventor： Arturo A. Rodriguez ,  Kevin Murray ,  Hsiang-Yeh Hwang ,  Akira Osamoto

IPC: H04N21/2387 ,  H04N5/783 ,  H04N21/6587

Abstract: Methods and systems for processing a video stream are disclosed. A first tier value may be assigned to each of a plurality of SHRAP pictures in a first video stream. A reference tier value may be assigned to pictures in the first video stream that may be used as reference pictures. A plurality of discard tier values may be assigned to pictures in the first video stream that may be discarded during trick mode operations and do not depend on other pictures assigned one of the plurality of discard tier values. A trick mode operation may then be performed, wherein the presentation of pictures in the first video stream is dependent upon assignment of tier values.

Abstract translation: 公开了用于处理视频流的方法和系统。 可以将第一层值分配给第一视频流中的多个SHRAP图像中的每一个。 可以将参考层值分配给可用作参考图片的第一视频流中的图像。 可以将多个丢弃层值分配给可在特技模式操作期间丢弃的第一视频流中的图像，并且不依赖于分配了多个丢弃层值之一的其他图像。 然后可以执行特技模式操作，其中第一视频流中的图像的呈现取决于层值的分配。