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Video stream transmission method and related device and system

專利號(hào)
US10897646B2
公開日期
2021-01-19
申請(qǐng)人
HUAWEI TECHNOLOGIES CO., LTD.（CN Shenzhen）
發(fā)明人
Peiyun Di; Qingpeng Xie
IPC分類
H04N21/44; H04N21/437; H04N21/434; H04N21/234; H04N21/2343; H04N21/81; H04N21/236; H04N21/4728; H04N21/65
技術(shù)領(lǐng)域
video,spatial,stream,client,viewport,streams,vr,sub,request,in
地域： Guangdong

摘要

The present disclosure disclose example video stream transmission methods and related devices and systems. One example method includes sending, by a client, a target request to a server, where the target request includes information about a corresponding target spatial location of a target spatial object that needs to be presented upon request by the client in a virtual reality VR content component. A target request feedback by which the server responds to the target request is received by the client, where the target request feedback includes information about a multiplex video stream that is obtained by performing preset multiplexing processing on an original video stream corresponding to the target spatial object. Video parsing and presentation based on the information about the multiplex video stream is performed by the client.

說明書

value=“1, 0, 0, 1920, 1080, 3840, 2160, 2”/><!-A video source identifier is 1 (a same content source as the foregoing video source), top-left coordinates of a spatial object is (0, 0), a length and a width of the spatial object are (1920, 1080), a space to which the spatial object references is (3840, 2160), and a spatial object group ID is 2. Herein, the length and the width of the spatial object is one-fourth a size of the space to which the spatial object references. According to the coordinates, the spatial object is a spatial in a top-left corner, that is, the AS 1. A representation in a representation 2 corresponds to content in the AS 1. Similarly, a description of another spatial object is the same as the following description of a related descriptor. Spatial objects having a same spatial object group ID belong to same video content. -->

<Representation id=“2” bandwidth=“4500000”>

<BaseURL>video-2.mp4</BaseURL>

</Representation>

</AdaptationSet>

<AdaptationSet [ . . . ]>

<EssentialProperty schemeIdUri=“urn:mpeg:dash:srd:2014”

    • value=“1, 1920, 0, 1920, 1080, 3840, 2160, 2”/>

<Representation id=“video-3” bandwidth=“2000000”>

<BaseURL>video-3.mp4</BaseURL>

</Representation>

</AdaptationSet>

[ . . . ]

<AdaptationSet [ . . . ]>

權(quán)利要求

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