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Video stream transmission method and related device and system

專利號
US10897646B2
公開日期
2021-01-19
申請人
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

In the embodiments of the present disclosure, the server multiplexes and encapsulates, based on viewport location information in request information of the client, a video stream related to the viewport location information, and transmits an encapsulated multiplex video stream to the client. The video stream related to the viewport location information is a video stream having video content that partially or entirely overlaps with content of a viewport range requested by the client. To be specific, the server performs preset multiplexing processing on a video stream that responds to the request, to respond to the request from the client. This reduces a quantity of requests from the client, and also reduces a quantity of responses from the server. In addition, this ensures simultaneous arrival of video stream information of fields of view of a same moment, thereby reducing a time of waiting for all video streams to be separately received, and reducing a presentation delay of the fields of view.

BRIEF DESCRIPTION OF DRAWINGS

To describe the technical solutions in the embodiments of the present disclosure more clearly, the following briefly describes the accompanying drawings required for describing the embodiments or the prior art.

FIG. 1 is a schematic diagram of handover between bitstream segments according to an embodiment of the present disclosure;

FIG. 2 is a hierarchical structural diagram of an mdp file according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a spatial relationship between spatial objects according to an embodiment of the present disclosure;

權(quán)利要求

1
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