Method and device for switching video stream

A video streaming and video technology, applied in the field of switching video streams, can solve the problems of reduced video quality, video playback delay, large video playback delay, etc., to achieve the effect of improving picture quality and low delay

Active Publication Date: 2016-11-23
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the existing streaming media server, in order to increase the loading speed of the player side, a picture group cache is usually set in the server. When the player side sends a video playback request, the server will send the cached image to the player side The picture group, so that the player can start playing immediately. However,

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  • Method and device for switching video stream
  • Method and device for switching video stream
  • Method and device for switching video stream

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[0022] The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for ease of description, only the parts related to the relevant invention are shown in the drawings.

[0023] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with embodiments.

[0024] figure 1 An exemplary system architecture 100 to which an embodiment of the method for switching video streams or the apparatus for switching video streams of the present application can be applied is shown.

[0025] Such as figure 1 As shown, the system architecture 100 may include terminal de...

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Abstract

The invention discloses a method and a device for switching a video stream. The method comprises the following specific steps: if the play request information of a video sent by a terminal is received, obtaining the video stream of the video, wherein the video comprises a video stream of a first picture group frame number and a video stream of a second picture group frame number, and the first picture group frame number is less than the second picture group frame number; sending the video stream of the first picture group frame number to the terminal, searching for a key frame in the video stream of the first picture group frame number, and extracting the decoding timestamp of the key frame; searching the video stream of the second picture group frame number to determine whether a frame with the same decoding timestamp exists; if the frame with the same decoding timestamp exists, further detecting whether the frame is the key frame; and if the frame is the key frame, sending the video stream of the second picture group frame number to the terminal. Through the way, low delay of video play is guaranteed, and the picture quality of the video is improved.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to the field of video playing technology, and in particular to a method and device for switching video streams. Background technique [0002] Streaming media refers to media formats, such as audio, video or multimedia files, that are played continuously and in real time on the network using streaming technology. Streaming media technology compresses continuous video and audio information and puts them on the website server, and the video server transmits each compressed package to the user's computer sequentially or in real time, allowing users to watch and listen while downloading without waiting for the entire process. It is a network transmission technology that can only be viewed after downloading compressed files to your own computer. [0003] However, in the existing streaming media server, in order to increase the loading speed of the player side, a picture group...

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Application Information

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IPC IPC(8): H04N21/239H04N21/242H04N21/43H04N21/8547
CPCH04N21/4383H04N21/234H04N21/2387H04N21/4331H04N21/4345H04N21/44H04N21/47217H04N21/242H04N21/2393H04N21/4307H04N21/8547
Inventor 李永兴沈慧锋戈君黄靖博李旭
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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