Live broadcast method and device for billion-pixel video, medium and equipment

Abstract

The invention relates to a live broadcast method and device for a billion-pixel video, a medium and equipment. The method is applied to a server and comprises the following steps: acquiring multiple paths of camera videos shot by an array camera, wherein each path of camera video comprises a high-resolution video stream and a low-resolution video stream; decoding all the low-resolution video streams in the multiple paths of camera videos, and fusing and splicing the low-resolution video streams into a first video stream; receiving a playing request of a client, wherein the playing request comprises a playing area and a playing resolution; when a resolution of the first video stream corresponding to the playing area is smaller than the playing resolution, determining K paths of camera videos corresponding to the playing area, and determining the high-resolution video streams of N paths of camera videos from the K paths of camera videos as a target video stream; decoding the target video stream, and replacing picture content of the first video stream corresponding to the playing area with picture content of the target video stream; and rendering a post-replacement picture to generate a second video stream, and sending the second video stream to the client. According to the invention, live broadcast of a video picture of a camera with larger pixels can be realized under the condition of the existing decoding capability.

Description

technical field [0001] This article relates to the field of live video broadcasting, in particular to a method, device, medium and equipment for live broadcasting of gigapixel video. Background technique [0002] In the related technology, the server obtains the video streams captured by all the cameras of the array camera, decodes all the video streams, and then splices the video frame images with the same time stamp to obtain a large canvas image with 100 million pixels, and generates the video stream based on the large canvas image. Provided to clients for viewing. [0003] However, as the number of cameras in the array camera increases, the resolution of the captured video becomes higher and higher, and the pressure on the server to decode becomes higher and higher. However, the upper limit of the decoding capability of the video fusion server can only reach the level of 100 million pixels. When the number of cameras in the array camera exceeds the number of videos corr...

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Problems solved by technology

[0003] However, as the number of cameras in the array camera increases, the resolution of the captured video becomes higher and higher, and the pressure on the server to decode becomes higher and higher.

However, the upper limit of the decoding capability of the video fusion server can only reach the level of 100 million pixels. When the number of cameras in the array camera exceeds the number of videos corresponding to the upper limit of the decoding capability of the video fusion server, the video fusion server cannot provide corresponding services

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