Broadcast control switching method and device in network video live broadcast

A technology of network video and video source, applied in the field of network live broadcast

Inactive Publication Date: 2010-12-08
CHINA DIGITAL VIDEO BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the process of concerts, live broadcasts of football games, etc., different users have different viewing needs, and the current online video live broadcast cannot meet the requirements of every user.

Method used

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  • Broadcast control switching method and device in network video live broadcast
  • Broadcast control switching method and device in network video live broadcast
  • Broadcast control switching method and device in network video live broadcast

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] figure 1 It is a flow chart of a broadcast control switching method in a network video live broadcast according to Embodiment 1 of the present invention.

[0037] The process of network video live broadcast is: first collect audio and video signals on the spot, then encode the collected video signals to generate streaming media files, and then the live broadcast server at the network end transmits the streaming media files to the user's computer for playback in real time. During this process, the user's computer is processed as follows:

[0038] Step 101, simultaneously accessing multiple live broadcast signals;

[0039] The multiple live signals are for the same video source, and each signal is a picture taken by a lens, that is, pictures taken from multiple angles are connected for the same broadcast time.

[0040] For example, in the live broadcast of a concert of stars, when a singer is singing, there will be multiple cameras shooting from multiple angles at the s...

Embodiment 2

[0051] Based on the first embodiment above, this embodiment proposes a preferred implementation method.

[0052] Preferred one:

[0053] In this embodiment, when the user computer caches the remaining several live broadcast signals in the internal memory, a certain cache time can be set according to different situations, such as 10 seconds or 5 minutes. After the cache time is exceeded, the cache will store Enter the contents of the newly accessed signals, and overwrite the signals stored in the previous moment. Wherein, the cache time can be flexibly customized according to specific application requirements, signal content size, memory size and other factors. In this way, it can be ensured that the broadcast control switch is realized under the condition of limited buffer space, and excessive memory resources will not be occupied, so that the operation of the server system will not be affected.

[0054] For example, if the cache time for a live football game is set to 2 min...

Embodiment 3

[0061] refer to figure 2 , is a structural diagram of a broadcast control switching device in a network video live broadcast according to Embodiment 3 of the present invention.

[0062] The broadcast control switching device mainly includes:

[0063] Signal access module 21, for simultaneously accessing multiple live signals;

[0064] Signal broadcasting module 22, for broadcasting one of the signals;

[0065] The buffer module 23 is used for buffering the remaining signals;

[0066] The broadcast control switching module 24 is configured to receive a signal switching request, and switch the currently playing signal to the requested signal for broadcasting.

[0067] The working process of the broadcast control switching device is:

[0068] For the broadcasting of a video, the signal access module 21 simultaneously accesses the multi-channel signal content, and the signal broadcast module 22 selects a signal with a better effect (that is, a signal set by default) to broadc...

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PUM

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Abstract

The invention provides a broadcast control switching method and a broadcast control switching device in network video live broadcast. In the method and the device, pictures can be switched in the live broadcast process. The method comprises the following steps of: simultaneously accessing multiple paths of live broadcast signals; broadcasting one path of signal in the multiple paths of live broadcast signals and caching the rest paths of signals; and receiving a signal switching request and switching the currently broadcast signal to the requested signal to broadcast. A user can switch the pictures according to demand thereof, so a plurality of pictures in different shooting angles can be watched at the same time, and the different requirements of different users on the video broadcast are met.

Description

technical field [0001] The present invention relates to the technical field of network live broadcasting, in particular to a broadcast control switching method and device in network video live broadcasting. Background technique [0002] Live broadcasting is a way of synthesizing and broadcasting of radio and television programs at the same time. Online video live broadcast is a live broadcast service using network resources. Through the on-site video shooting and uploading to the network simultaneously, users can see the first-time on-site consultation on the network at the same time. This kind of network live broadcast service is widely used in real-time press conferences, exhibitions, product releases, product promotions, sales on-site demonstrations, online concerts, company receptions, business meetings, celebration ceremonies, program performances, film and television shooting, sports Webcasting services such as competitions, securities analysis, and distance education...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/262H04N7/24
Inventor 李军闫鹏温晓瑶
Owner CHINA DIGITAL VIDEO BEIJING
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