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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

1. After receiving the multiplex video stream, the client parses description information of multiplexed video streams in ‘fovm’, to obtain manner information in the multiplex video stream.

2. The client determines, based on the information about the multiplexing manner, a multiplexing manner of data of each viewport. If the multiplexing manner is head-to-tail splicing, the client parses offset information and data volume information, and sends the data of each viewport to a decoder. If the multiplexing manner is sample interleaving, the client parses offset and data volume information of each sample, and sends each sample to a corresponding decoder. FIG. 10 is a schematic diagram of sample interleaving multiplexing in a video stream according to an embodiment of the present disclosure. In the figure, videos (videos 1, 2, and 3) of different fields of view are multiplexed in an interleaving manner. Sub video streams indicated by graticule lines, oblique lines, and vertical lines can be multiplexed in an interleaving manner. A result of the multiplexing is a multiplex video stream on a right side in FIG. 10.

Description Manner 5:

aligned(8) class FOVMuxBox extends FullBox(‘fovm’, version, flag) {

unsigned int(16) FOVCount;

unsigned int(32) first_offset;

unsigned int(32) source_w;

unsigned int(32) source_h;

for(i=1; i<=FOVCount; i++)

    • {
      • unsigned int(32) x;

權(quán)利要求

1
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