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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

FIG. 7 is a mapping from a spherical surface to a coordinates graph according to an embodiment of the present disclosure. In the figure, it is assumed that target spatial location information is coordinates of a top-left location of a viewport region in a VR video and width and height information of the viewport region. For example, in FIG. 6, coordinates of a top-left location of a right box in the coordinates graph is (x, y), and a length and a width of the right box is (w, h). In this case, a request of a client carries values of x, y, w, and h; uniform scaling values of x, y, w, and h, or an angle value in a sphere.

In a possible implementation, the target request further includes at least one of: region of interest ROI information, bandwidth information of the client, information about a decoding standard supported by the client, and information about a maximum video resolution of the client. To be specific, when initiating a video request, the client may further add some related parameters of the client, for example, a video playing condition or playing performance, so that the server can perform video stream processing and feedback more properly.

Step S502: The server searches, based on the target spatial location information, for the corresponding target spatial object in the VR content component.

權(quán)利要求

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