CN101909160A - Broadcast control switching method and device in network video live broadcast - Google Patents
Broadcast control switching method and device in network video live broadcast Download PDFInfo
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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
The present invention relates to the network direct broadcasting technical field, particularly relate to Broadcast Control changing method and device in a kind of internet video live broadcasting.
Background technology
Live is exactly the broadcast mode that the later stage is synthetic, broadcast is carried out simultaneously of broadcast TV program.Internet video live broadcasting is exactly a live broadcast service of utilizing Internet resources to carry out, and the video capture by the scene uploads on the network synchronously, and the user can see the scene consulting of the very first time the same time on network.The live broadcast service of this network is widely used in network direct broadcasting services such as the news briefing carried out in real time, exhibition, product issue, product recommendations, sale outpost display, network concert, company's cocktail party, business meetings, celebration ceremony, program performance, movies-making, sports tournament, security analysis, long-distance education.
Now, many BroadVision WEBTVs are based on advanced stream media technology exploitation and form.So-called Streaming Media is meant the media formats that the mode of employing stream transmission is play at Internet.The stream transmission mode then is that multimedia files such as whole A/V and 3D are divided into compressed package one by one through special compress mode,, in real time transmission continuous to subscriber computer by video server.In the system that adopts the stream transmission mode, the user needn't wait until as adopting downloading mode that whole download of whole file finishes, but only need can play behind the multimedia file decompress(ion)s such as A/V, 3D that utilize decompression apparatus (hardware or software) to compression on the user's computer and watch through the startup time-delay of seconds or tens of seconds.The remainder of multimedia file will continue to download in the server on backstage this moment.
At present, in the internet video live broadcasting based on stream media technology, the user can watch the picture of shooting in real time.But, sometimes the user wishes that the picture of seeing not is live middle picture displayed, for example, in the live process of award party, a certain section time picture demonstrates three stars simultaneously, but this picture has only carried out special showing to one of them star, shows and also other two stars are not carried out the spy in the follow-up play process.But some users more pay close attention to other two stars, therefore wish to see more camera lenses of other two stars.Also have in processes such as concert, ball match be live, different user has the different demands of watching, and present internet video live broadcasting can not satisfy each user's requirement.
Summary of the invention
Technical problem to be solved by this invention provides Broadcast Control changing method and the device in a kind of internet video live broadcasting, can carry out picture and switch in live process.
In order to address the above problem, the invention discloses the Broadcast Control changing method in a kind of internet video live broadcasting, comprising:
Insert the multichannel live signal simultaneously;
Broadcast wherein one road signal, and all the other several signals are carried out buffer memory;
The received signal handoff request switches to the signal of being asked with the signal of current broadcast and broadcasts.
Preferably, describedly all the other several signals carried out buffer memory comprise:
All the other several signals are stored in the cache-time that presets, surpassed the cache-time that presets and then deposit new live signal in.
Wherein, described signal with current broadcast switches to the signal of being asked and comprises:
Stop to play current signal, then the signal of being asked is broadcasted.
Preferably, described method also comprises:
Preview is carried out on all the other several roads simultaneously broadcasts.
Wherein, described multichannel live signal is a plurality of broadcast pictures at same reproduction time.
The present invention also provides the switching device shifter of the Broadcast Control in a kind of internet video live broadcasting, comprising:
Signal access module is used for inserting simultaneously the multichannel live signal;
Signal broadcasts module, is used for broadcasting wherein one road signal;
Cache module is used for all the other several signals are carried out buffer memory;
The Broadcast Control handover module is used for the received signal handoff request, the signal of current broadcast is switched to the signal of being asked broadcast.
Preferably, described cache module carries out the signal buffer memory in the following manner:
Described cache module is stored in the cache-time that presets all the other several signals, surpasses the cache-time that presets and then deposits new live signal in.
Wherein, described Broadcast Control handover module carries out the signal switching in the following manner:
Described Broadcast Control handover module stops to play current signal, then the signal of being asked is broadcasted.
Preferably, described signal broadcast module also is used for the preview broadcast is carried out on all the other several roads simultaneously.
Wherein, described multichannel live signal is a plurality of broadcast pictures at same reproduction time.
Compared with prior art, the present invention has the following advantages:
The present invention is directed to same video source multiple signals are provided, every road signal is the picture of a lens shooting, selects wherein one road signal broadcast during broadcast, and all the other several signals are carried out buffer memory.Network video player provides the picture handoff functionality, and the user can carry out picture according to the needs of oneself and switch, thereby watches a plurality of pictures of different shooting angles at one time, has satisfied the different demands of different user to video playback.
Description of drawings
Fig. 1 is the Broadcast Control changing method flow chart in the embodiment of the invention one described a kind of internet video live broadcasting;
Fig. 2 is the Broadcast Control switching device shifter structure chart in the embodiment of the invention three described a kind of internet video live broadcastings.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
At the different demands of different user in the internet video live broadcasting process, the present invention proposes a kind of internet video live broadcasting method that picture switches that carries out, described live the comprise channel live of TV station and the on-the-spot broadcasting that video camera is taken to shooting angle.
Be elaborated below by embodiment.
Embodiment one:
Fig. 1 is the Broadcast Control changing method flow chart in the embodiment of the invention one described a kind of internet video live broadcasting.
The process of internet video live broadcasting is: collection in worksite audio-video signal at first, then with the encoding video signal that collects, generate files in stream media, and the direct broadcast server of network terminal is passed to subscriber computer in real time with files in stream media and is play then.In this process, the processing of subscriber computer is as follows:
Step 101 inserts the multichannel live signal simultaneously;
Described multichannel live signal is at same video source, and every road signal is the picture of a lens shooting, has promptly inserted the picture of a plurality of angle shots at same broadcast time.
For example, in groups of stars' concert on-the-spot broadcasting, in the process that certain singer is singing, have multiple cameras and take from a plurality of angles simultaneously, so just generated the multichannel live signal, be transferred to direct broadcast server simultaneously.
Step 102 is broadcasted wherein one road signal, and all the other several signals are carried out buffer memory;
In the net cast, system can give tacit consent to select one tunnel effect preferably signal broadcast to all subscriber computers, but simultaneously all the other several signals are cached on the subscriber computer, so that the user is switched.
Step 103 receives the signal handoff request that the user sends;
In live process, if being the certain user, the road signal that acquiescence select to be broadcasted do not wish the picture seen, then the user can carry out the operation that picture switches on video player.
A kind of preferred mode of operation is:
Player carries out all the other several roads simultaneously preview simultaneously and broadcasts, and promptly network video player provides a main window and a plurality of windows at broadcast window, and wherein main window broadcasts the road signal that the staff selects, and inferior window broadcasts all the other several signals simultaneously.The user can watch the broadcast of a plurality of angles, many camera lenses, many pictures at one time simultaneously, and the user is image switching if desired, then operates the inferior window that click is selected, and has promptly sent handoff request.
Step 104 switches to the signal of being asked with the signal of current broadcast and broadcasts.
After receiving the handoff request that the user sends, another road signal that one road signal of current broadcast is switched to user's request broadcasts.The mode of switching is: earlier one road signal of current broadcast is broken, then the signal of being asked is broadcasted.
Above-mentioned flow process makes different user can ask to switch on the different broadcast pictures and watches, satisfied the demand of watching of different user.For example, in the on-the-spot broadcasting of award party, synchronization, the party A-subscriber can select to watch B star's camera lens picture, and C user can select to watch D star's camera lens picture, does not conflict mutually, satisfies needs separately.
Embodiment two:
Based on the foregoing description one, present embodiment has proposed a kind of preferred implementation method.
Preferred one:
In the present embodiment, when subscriber computer carries out the buffer memory of all the other several roads live signals at internal memory, according to different situations, can set certain cache-time, as 10 seconds or 5 minutes, surpass after the cache-time, will deposit the several signals content of up-to-date access in the described buffer memory in, override and will go up several signals that constantly deposit in.Wherein, described cache-time can be according to factor flexibly customizings such as the size of concrete application demand and signal content and memory sizes.Like this, can guarantee under the spatial cache condition of limited, to realize the Broadcast Control switching, can not take too much memory source, thereby can not influence the operation of server system.
For example, be set at 2 minutes, deposited buffer memory in regard to the several signals that have new access in per 2 minutes at the cache-time of certain live ball match, when the user switches to another road live video, response request reads one road signal of being asked from buffer memory at once, broadcasts.
Preferred two:
In the signal handoff procedure, present embodiment provides a kind of preferred switching mode, and is as follows:
As previously mentioned, network video player can provide a main window and a plurality of windows at broadcast window, and wherein the main window broadcast system is given tacit consent to the road signal of selecting, and inferior window broadcasts the content of all the other several signals simultaneously.Carry out signal when switching when the user clicks a time window, handoff procedure is as follows:
Video content in the main window stops to play, and the picture incision main window of selected then inferior window begins to cut broadcast gradually from a side of main window, and the picture that stops to broadcast in the main window withdraws from main window gradually simultaneously.After handoff procedure finished, what show in the main window was the picture that the user is switched, and main window begins to play the road signal that is switched.
This is the process that a kind of gradual change is switched, and the handoff procedure time spent is very short, can exert an influence to watching of user hardly.And described handoff procedure does not smoothly have pause, black field or picture can not occur and stop the phenomenon of pending buffer, thereby keep the continuity of playing.
Embodiment three:
With reference to Fig. 2, be the Broadcast Control switching device shifter structure chart in the embodiment of the invention three described a kind of internet video live broadcastings.
Described Broadcast Control switching device shifter mainly comprises:
Signal access module 21 is used for inserting simultaneously the multichannel live signal;
Signal broadcasts module 22, is used for broadcasting wherein one road signal;
Cache module 23 is used for all the other several signals are carried out buffer memory;
Broadcast Control handover module 24 is used for the received signal handoff request, the signal of current broadcast is switched to the signal of being asked broadcast.
The course of work of described Broadcast Control switching device shifter is:
At the broadcast of a video, signal access module 21 inserts the multiple signals content simultaneously, and signal broadcasts module 22 and selects wherein one tunnel effect signal (being one road signal of default setting) broadcast preferably, and all the other several signals deposit cache module 23 in simultaneously; When this device received the signal handoff request, Broadcast Control handover module 24 was according to described request, the signal of current broadcast switched to the signal of being asked broadcast.
Described device can in time respond the handoff request of user side, fast image content is switched broadcast.Owing at same reproduction time, can have multiple signals to broadcast a plurality of pictures, so different user can be selected different broadcasting pictures according to the needs of oneself from a plurality of angles.
Preferably, described cache module 23 can carry out the signal buffer memory in the following manner:
Described cache module 23 is stored in the cache-time that presets all the other several signals, surpasses the cache-time that presets and then deposits new live signal in.
Described cache-time can be according to factor flexibly customizings such as the size of concrete application demand and signal content and memory sizes.Like this, can guarantee under the spatial cache condition of limited, to realize the Broadcast Control switching., can not take too much memory source, thereby can not influence the operation of server system.
Preferably, described Broadcast Control handover module 24 can carry out the signal switching in the following manner:
Described Broadcast Control handover module 24 stops to play current signal, then the signal of being asked is broadcasted.
More specifically, described signal broadcasts module 22 and also is used for the preview broadcast is carried out on all the other several roads simultaneously, for example: network video player provides a main window and a plurality of windows at broadcast window, wherein main window broadcasts the road signal that described device acquiescence is selected, and inferior window broadcasts all the other several signals simultaneously.Like this, the user can watch the broadcast of a plurality of angles, many camera lenses, many pictures at one time simultaneously, and image switching is then operated the inferior window that click is selected if desired, has promptly sent handoff request to direct broadcast server.
Broadcast Control handover module 24 is the response handoff request in time, handoff procedure is: the video content in the main window stops to play, the picture incision main window of selected then inferior window begins to cut broadcast gradually from a side of main window, and the picture that stops to broadcast in the main window withdraws from main window gradually simultaneously.After handoff procedure finished, what show in the main window was the picture that the user is switched, and main window begins to play the road signal that is switched.
Described Broadcast Control handover module 24 can make handoff procedure smoothly not have pause, black field or picture can not occur and stop the phenomenon of pending buffer, thereby keep the continuity of playing.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For device embodiment, because it is similar substantially to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
More than to Broadcast Control changing method and device in a kind of internet video live broadcasting provided by the present invention, be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. the Broadcast Control changing method in the internet video live broadcasting is characterized in that, comprising:
Insert the multichannel live signal simultaneously;
Broadcast wherein one road signal, and all the other several signals are carried out buffer memory;
The received signal handoff request switches to the signal of being asked with the signal of current broadcast and broadcasts.
2. method according to claim 1 is characterized in that, describedly all the other several signals are carried out buffer memory comprises:
All the other several signals are stored in the cache-time that presets, surpassed the cache-time that presets and then deposit new live signal in.
3. method according to claim 1 is characterized in that, described signal with current broadcast switches to the signal of being asked and comprises:
Stop to play current signal, then the signal of being asked is broadcasted.
4. method according to claim 1 is characterized in that, also comprises:
Preview is carried out on all the other several roads simultaneously broadcasts.
5. method according to claim 1 is characterized in that: described multichannel live signal is at same video source.
6. the Broadcast Control switching device shifter in the internet video live broadcasting is characterized in that, comprising:
Signal access module is used for inserting simultaneously the multichannel live signal;
Signal broadcasts module, is used for broadcasting wherein one road signal;
Cache module is used for all the other several signals are carried out buffer memory;
The Broadcast Control handover module is used for the received signal handoff request, the signal of current broadcast is switched to the signal of being asked broadcast.
7. device according to claim 6 is characterized in that, described cache module carries out the signal buffer memory in the following manner:
Described cache module is stored in the cache-time that presets all the other several signals, surpasses the cache-time that presets and then deposits new live signal in.
8. device according to claim 6 is characterized in that, described Broadcast Control handover module carries out signal in the following manner and switches:
Described Broadcast Control handover module stops to play current signal, then the signal of being asked is broadcasted.
9. device according to claim 6 is characterized in that:
Described signal broadcasts module and also is used for the preview broadcast is carried out on all the other several roads simultaneously.
10. device according to claim 6 is characterized in that: described multichannel live signal is at same video source.
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| CN111698520A (en) * | 2020-06-24 | 2020-09-22 | 北京奇艺世纪科技有限公司 | Multi-view video playing method, device, terminal and storage medium |
| CN113365149A (en) * | 2021-06-02 | 2021-09-07 | 上海哔哩哔哩科技有限公司 | Live broadcast picture playing method and device of live broadcast room |
| CN114339370A (en) * | 2021-12-30 | 2022-04-12 | 杭州广电云网络科技有限公司 | Slow live broadcast system and method for automatically switching pictures |
| CN114866787A (en) * | 2022-07-04 | 2022-08-05 | 深圳市必提教育科技有限公司 | Live broadcast implementation method and system |
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