CN101917568B - Streaming media technology-based network video player and playing system - Google Patents
Streaming media technology-based network video player and playing system Download PDFInfo
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Abstract
The invention provides a streaming media technology-based network video player and a streaming media technology-based playing system, which can switch pictures in the live broadcasting process. The player can receive a plurality of paths of live broadcast signals of the same video source, and playing windows are divided into a main window and a plurality of auxiliary windows, wherein the main window plays one path of direct broadcast signals, the rest paths of direct broadcast signals are cached to the player and are simultaneously played in the plurality of auxiliary windows. The player can make a user watch a plurality of pictures with different shooting angles at the same time, and meets different requirements of different users on video playing. Besides, the player also has code stream selection function, so the user can freely select one type of code stream for playing, and also can switch the code stream in the playing process so as to adapt to the network transmission state.
Description
Technical field
The present invention relates to the network direct broadcasting technical field, particularly relate to a kind of network video player based on stream media technology and Play System.
Background technology
Streaming Media claims again streaming video (Stream Media), watches, listens to while allow the viewer to download, and do not need to wait until after whole multimedia file download is finished and watch.Streaming Media is not single technology, but has merged the technology that produces after the network technology, relates to the multinomial technology such as collection, compression, storage, transmission and network service of stream medium data.
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 the 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 On-the-spot Counseling of the very first time the same time at network.The live broadcast service of this network is widely used in the network direct broadcasting services such as the news briefing carried out in real time, exhibition, product issue, Product Recommendation, sale outpost display, network concert, company's cocktail party, business meetings, celebration ceremony, program performance, movies-making, sports tournament, security analysis, long-distance education.
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 the picture of live middle demonstration, for example, in the live process of award party, a certain section time picture demonstrates three stars simultaneously, but it is special aobvious that this picture has only carried out 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 the 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 a kind of network video player based on stream media technology and Play System, can carry out Picture switch in live process.
In order to address the above problem, the invention discloses a kind of network video player based on stream media technology, comprising:
Signal receiving module is used for for same video source, receives the multichannel live signal;
Play main window, be used for playing wherein one road live signal;
A plurality of broadcasts time window is used for playing all the other several roads live signals, and each time window is play one road signal;
Cache module is used for all the other several roads live signals are carried out buffer memory;
The handover request module is used for sending the signal handover request; By selecting one of them to play time window, click this broadcast time window and trigger described handover request module;
Play handover module, be used for that the road signal that current broadcast main window is play is switched to another road signal of asking and broadcast;
Wherein, the corresponding multiple code stream of described same video source is play main window and is all adopted identical a kind of code stream to play with a plurality of broadcasts time window.
Preferably, described player also comprises:
The code stream selection module is used for triggering the code stream selection request;
The code stream handover module is used for the code stream of current broadcast main window and a plurality of broadcast time window is all switched to the another kind of code stream of asking.
Preferably, described broadcast handover module carries out the signal switching in the following manner:
Stop the road signal that described broadcast main window is play, another road signal that selected broadcast time window is play accesses described broadcast main window, and from a side of playing main window image switching gradually.
Preferably, described broadcast handover module also is used for original road signal of playing of described broadcast main window is play at broadcast time window.
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.
The present invention also provides a kind of Internet video Play System based on stream media technology, comprising: Play Server and client player, and wherein, described client player comprises:
Signal receiving module is used for for same video source, receives the multichannel live signal from described Play Server;
Play main window, be used for playing wherein one road live signal;
A plurality of broadcasts time window is used for playing all the other several roads live signals, and each time window is play one road signal;
Cache module is used for all the other several roads live signals are carried out buffer memory;
The handover request module is used for sending the signal handover request; By selecting one of them to play time window, click this broadcast time window and trigger described handover request module;
Play handover module, be used for that the road signal that current broadcast main window is play is switched to another road signal of asking and broadcast;
Wherein, the corresponding multiple code stream of described same video source is play main window and is all adopted identical a kind of code stream to play with a plurality of broadcasts time window.
Preferably, described Play Server comprises:
The multiplex coding module is used for for each video source, and original video stream is encoded into multiple code stream;
Signal transmission module be used for to select wherein a kind of code stream to client player multichannel live signal corresponding to transmission of video source simultaneously.
Preferably, described Play Server also comprises:
Code stream is selected module automatically, is used for monitoring state of network, automatically selects a kind of code stream according to network state;
Then described signal transmission module uses the code stream of described automatic selection to multichannel live signal corresponding to client player transmission of video source.
Compared with prior art, the present invention has the following advantages:
At first, network video player provided by the invention is for same video source, can receive the multichannel live signal, and broadcast window is divided into a main window and a plurality of windows, wherein main window is play wherein one road live signal, all the other several roads live signals are cached in the player, and broadcast in a plurality of windows simultaneously.Like this, the user just can be in inferior window the content of all the other several signals of preview, in needs, the content of inferior window switched in the main window and broadcasts.Described player can make the user watch a plurality of pictures of different shooting angles at one time, has satisfied the different demands of different user to video playback.
Secondly, described player adopts the mode of Gradual change to seamlessly transit in carrying out the signal handoff procedure of primary and secondary window, black field or picture can not occur and stop the phenomenon of pending buffer, thereby keep the continuity of playing.And the handoff procedure time spent is very short, can exert an influence to watching of user hardly.
Again, described player also provides the code stream selection function, and the user can freely select a kind of code stream to play, and can also carry out code stream and switch in playing process, to adapt to the transmission state of network.For example, in the less situation of network bandwidth resources, select low code stream, and in the situation of bandwidth resources abundance, select high code stream, thus the fluency of assurance video playback.And, by in playing process, adjusting video code flow, can also improve the concurrent user number that Internet video is play.
Description of drawings
Fig. 1 is the structure chart of the described network video player based on stream media technology of the embodiment of the invention one;
Fig. 2 is the interface schematic diagram of the embodiment of the invention one described player;
Fig. 3 is the structure chart of the described network video player based on stream media technology of the embodiment of the invention two;
Fig. 4 is the structure chart of the described Internet video Play System based on stream media technology of the embodiment of the invention three.
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.
The present invention proposes a kind of network video player based on stream media technology, be different from traditional network video player, in the process of carrying out internet video live broadcasting, have the function of Picture switch and code stream selection.Be elaborated below by embodiment.
Embodiment one:
The Picture switch function of present embodiment explanation network video player.
With reference to Fig. 1, it is the structure chart of the described network video player based on stream media technology of the embodiment of the invention one.
Described player mainly comprises:
Signal receiving module 11 is used for for same video source, receives the multichannel live signal;
Play main window 12, be used for playing wherein one road live signal;
A plurality of broadcasts time window 13 is used for playing all the other several roads live signals, and each time window is play one road signal;
Cache module 14 is used for all the other several roads live signals are carried out buffer memory;
Handover request module 15 is used for sending the signal handover request;
Play handover module 16, be used for that the road signal that current broadcast main window is play is switched to another road signal of asking and broadcast.
Wherein, described multichannel live signal is for same video source, and every road signal is the picture of a lens shooting, and namely player can broadcast the picture of a plurality of angle shots simultaneously in 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 simultaneously player.
An outstanding feature of present embodiment is: the broadcast window of player is divided into a main window and a plurality of windows, and wherein main window is play wherein one road live signal, and all the other several roads live signals are cached in the player, and broadcasts in a plurality of windows simultaneously.
With reference to Fig. 2, it is the interface schematic diagram of described player.
Among the figure, broadcast window is divided into one and plays main window 1 and four broadcast time windows 2, is respectively time window 21, inferior window 22, inferior window 23 and inferior window 24.Wherein, the viewing area of playing main window 1 is larger, and the user mainly watches by main window 1; And the viewing area of all the other four time windows 2 is less, and its function is be used to browsing, and the user can browse to four kinds of camera lens pictures from four angles at one time simultaneously.
With reference to the display interface of Fig. 2, the course of work of described player is as follows:
When opening a certain video of player plays, signal receiving module 11 receives 5 road signals simultaneously for this video, and each road signal is taken from an angle.Usually, network system can give tacit consent to specify one tunnel effect preferably signal broadcast at main window 1, player deposits all the other 4 road signals in cache module 14, and broadcasts at inferior window 21, inferior window 22, inferior window 23 and inferior window 24 respectively.Wherein, a part of memory headroom of player can be marked off and be used as cache module 14.
The user can see the broadcasting pictures of 5 windows simultaneously, if the user wishes the Picture switch of certain time window is amplified broadcast to main window, for example choose time window 21 and drag mouse and click this window, then triggered handover request module 15, handover request module 15 is sent handover request to player.
The broadcast handover module 16 of player is triggered, carrying out following signal switches: road signal content in the main window 1 stops to play, the picture of simultaneously selected inferior window 21 also stops, then one road signal of access time window 21 is switched to main window 1 broadcast, cut main window 1 at the picture that inferior window 21 shows, begin to cut gradually broadcast from a side of main window 1, the picture that stops to broadcast in the main window 1 simultaneously withdraws from main window 1 gradually.After handoff procedure finished, what show in the main window 1 was to switch the picture of coming from inferior window 21, and main window 1 begins to play the road signal that is switched.For example, the picture of inferior window 21 begins from the incision of the upper left corner of main window 1, and the lower right corner that is transitioned into gradually main window 1 finishes Picture switch, and then main window 1 begins to play the road signal of originally playing at inferior window 21.
Preferably, the broadcast handover module 16 of player also is used for described broadcast main window 1 original road signal of playing is play at broadcast time window 2.Can directly play in inferior window 21, namely main window 1 and time window 21 have exchanged live signal.
Preferably, described 4 windows 21, inferior window 22, inferior window 23 and inferior windows 24 can also carry out the position rolling.For example, after settling signal switched, the position of inferior window 22, inferior window 23 and inferior window 24 scrolled up successively, and the position of inferior window 21 is rolled to below.
In sum, described player can make the user watch a plurality of pictures of different shooting angles at one time, has satisfied the different demands of different user to video playback.And the Picture switch process of primary and secondary window is level and smooth without pausing, and black field or picture can not occur and stop the phenomenon of pending buffer, thereby keep the continuity of playing.
Preferably, the cache module 14 of described player is when carrying out the multiple signals buffer memory, can also be according to different situations, can set certain cache-time, such 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 cache module 14 in, and upper one several signals that constantly deposit in are override.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 in the limited situation of spatial cache, to realize that Broadcast Control switches, can not take too much memory source, thereby can not affect the operation of server system.
Described network video player is applicable to the channel live of TV station and the on-the-spot broadcasting that video camera is taken.
Embodiment two:
The code stream handoff functionality of present embodiment explanation network video player.
With reference to Fig. 3, it is the structure chart of the described network video player based on stream media technology of the embodiment of the invention two.
Based on embodiment one, described player can comprise:
Signal receiving module 31 is used for for same video source, receives the multichannel live signal;
Play main window 32, be used for playing wherein one road live signal;
A plurality of broadcasts time window 33 is used for playing all the other several roads live signals, and each time window is play one road signal;
Cache module 34 is used for all the other several roads live signals are carried out buffer memory;
Handover request module 35 is used for sending the signal handover request;
Play handover module 36, be used for that the road signal that current broadcast main window is play is switched to another road signal of asking and broadcast.
Above-mentioned module has realized the signal handoff functionality of player jointly.
But in the present embodiment, same video source can corresponding multiple code stream, and player is the reception of carrying out according to a kind of code stream wherein when receiving the multiple signals of a video source.That is: playing main window 32 all adopts identical a kind of code stream to play with a plurality of broadcasts time window 33.
Therefore, if player is realized the code stream selection function, also need to comprise with lower module:
Code stream selection module 37 is used for triggering the code stream selection request;
Code stream handover module 38 is used for the code stream of current broadcast main window 32 and a plurality of broadcast time window 33 is all switched to the another kind of code stream of asking.
For example, the code stream selection module 37 of player (can be set to menu) provides two kinds of code streams that can automatically switch: HD video code stream and smooth video code flow.Wherein, smooth video code flow is the client's setting that can not satisfy the HD video requirement for bandwidth environment.
Being configured to of HD video code stream:
320kbps is High profile video+64kbps MP3 audio frequency H.264;
Being configured to of smooth video code flow:
200kbps is video+48kbps MP3 audio frequency H.264.
The user can support to select the HD video code stream in the situation of high image quality in bandwidth, does not support in bandwidth to select smooth video code flow in the situation of high image quality, although image quality is subject to some impacts, but can guarantee the smooth playing of video.
All windows of supposing present player all are to play according to the HD video code stream, if the user by menu setecting smooth video code flow, then code stream selection module 37 is sent the code stream selection request, this request is transferred to network system, and system carries out the HD video code stream to the handoff response of smooth video code flow according to this request.Simultaneously, the code stream handover module 38 of player is according to described response, and the code stream of all windows of player is all switched to smooth video code flow.
Usually, the user can select low code stream under the situation of bad in network state (slower such as network speed) in watching the process of Internet video, and selects high code stream in the situation of network state good (very fast such as network speed).Like this, even network speed is slower, owing to selected the low code stream transmission of video, can reduce the resource occupying in the transmission of video process, thereby guarantee the fluency of video playback.
And if most of user can both select lower code stream to play as far as possible, then the bandwidth of each CU will reduce, and just can connect more user, improves the concurrent user number that Internet video is play, and namely improves the coverage rate that Internet video is play.
In addition, the user can also select different code streams according to different application.For example:
Scene for main use acoustic pattern, carry out the study of long-distance education on the net such as the user, playing network lecture etc., because what the user paid close attention to is sound, broadcast to picture can be ignored, and therefore in this case, can select the broadcast of low code stream, even it is discontinuous that picture is play, but guarantee that sound broadcast smoothness gets final product.
For the scene of mainly watching video pictures, such as the broadcast of film, TV play, ball match, concert live etc., when the user paid close attention to sound, main was to watch picture, therefore in this case, just need to select the broadcast of high code stream, to guarantee the smoothness of picture.And in the situation that the network bandwidth is supported, the user can also select higher code stream to improve the definition of picture, enjoys the broadcast of high image quality.
Embodiment three:
With reference to Fig. 4, it is the structure chart of the described Internet video Play System based on stream media technology of the embodiment of the invention three.
Described Internet video Play System mainly comprises Play Server 41 and client player 42, wherein described in the 26S Proteasome Structure and Function of client player 42 such as above-mentioned embodiment one and the embodiment two, is not described in detail in this.
When realizing the multiple signals handoff functionality, described Play Server 41 is used for for same video source, to client player 42 transmission multichannel live signals; Described client player 42 wherein one road signal is broadcasted at main window, and all the other several signals are carried out buffer memory, and can broadcast in preview in several windows.Client player 42 can be switched broadcast with the signal of primary and secondary window.
When realizing many code streams handoff functionality, described Play Server 41 can comprise:
Multiplex coding module 411 is used for for each video source, and original video stream is encoded into multiple code stream;
Signal transmission module 412 be used for to select wherein a kind of code stream to client player multichannel live signal corresponding to transmission of video source simultaneously.
Preferably, the selection of code stream can realize (as described in embodiment two) by client player 42, also can be realized by Play Server 41.
Therefore, described Play Server 41 can also comprise:
Code stream is selected module 413 automatically, is used for monitoring state of network, automatically selects a kind of code stream according to network state;
Then described signal transmission module 412 uses the code stream of described automatic selection to multichannel live signal corresponding to client player 42 transmission of video sources.
Described Internet video Play System is applicable to the channel live of TV station and the scenes such as on-the-spot broadcasting that video camera is taken.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
More than to a kind of network video player and Play System based on stream media technology 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, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. the network video player based on stream media technology is characterized in that, comprising:
Signal receiving module is used for for same video source, receives the multichannel live signal;
Play main window, be used for playing wherein one road live signal;
A plurality of broadcasts time window is used for playing all the other several roads live signals, and each time window is play one road signal;
Cache module is used for all the other several roads live signals are carried out buffer memory;
The handover request module is used for sending the signal handover request; By selecting one of them to play time window, click this broadcast time window and trigger described handover request module;
Play handover module, be used for that the road signal that current broadcast main window is play is switched to another road signal of asking and broadcast;
Wherein, the corresponding multiple code stream of described same video source is play main window and is all adopted identical a kind of code stream to play with a plurality of broadcasts time window.
2. player according to claim 1 is characterized in that, also comprises:
The code stream selection module is used for triggering the code stream selection request;
The code stream handover module is used for the code stream of current broadcast main window and a plurality of broadcast time window is all switched to the another kind of code stream of asking.
3. player according to claim 1 is characterized in that, described broadcast handover module carries out in the following manner signal and switches:
Stop the road signal that described broadcast main window is play, another road signal that selected broadcast time window is play accesses described broadcast main window, and from a side of playing main window image switching gradually.
4. player according to claim 3 is characterized in that:
Described broadcast handover module also is used for original road signal of playing of described broadcast main window is play at broadcast time window.
5. player according to claim 1 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.
6. the Internet video Play System based on stream media technology is characterized in that, comprising: Play Server and client player, and wherein, described client player comprises:
Signal receiving module is used for for same video source, receives the multichannel live signal from described Play Server;
Play main window, be used for playing wherein one road live signal;
A plurality of broadcasts time window is used for playing all the other several roads live signals, and each time window is play one road signal;
Cache module is used for all the other several roads live signals are carried out buffer memory;
The handover request module is used for sending the signal handover request; By selecting one of them to play time window, click this broadcast time window and trigger described handover request module;
Play handover module, be used for that the road signal that current broadcast main window is play is switched to another road signal of asking and broadcast;
Wherein, the corresponding multiple code stream of described same video source is play main window and is all adopted identical a kind of code stream to play with a plurality of broadcasts time window.
7. system according to claim 6 is characterized in that, described Play Server comprises:
The multiplex coding module is used for for each video source, and original video stream is encoded into multiple code stream;
Signal transmission module be used for to select wherein a kind of code stream to client player multichannel live signal corresponding to transmission of video source simultaneously.
8. system according to claim 7 is characterized in that, described Play Server also comprises:
Code stream is selected module automatically, is used for monitoring state of network, automatically selects a kind of code stream according to network state;
Then described signal transmission module uses the code stream of described automatic selection to multichannel live signal corresponding to client player transmission of video source.
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| CN 200910242813 CN101917568B (en) | 2009-12-17 | 2009-12-17 | Streaming media technology-based network video player and playing system |
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| CN 200910242813 CN101917568B (en) | 2009-12-17 | 2009-12-17 | Streaming media technology-based network video player and playing system |
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| CN113194325A (en) * | 2021-04-23 | 2021-07-30 | 北京达佳互联信息技术有限公司 | Video live broadcast method and video live broadcast device |
| CN113271488B (en) * | 2021-05-17 | 2023-07-21 | 口碑(上海)信息技术有限公司 | Play control method, device, electronic equipment, storage medium and program product |
| CN114554292A (en) * | 2022-02-21 | 2022-05-27 | 北京字节跳动网络技术有限公司 | Method and device for switching visual angle, electronic equipment, storage medium and program product |
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| CN1997160A (en) * | 2006-01-06 | 2007-07-11 | 腾讯科技（深圳）有限公司 | A multi-channel program receiving and displaying system and method |
| CN101287083A (en) * | 2008-05-15 | 2008-10-15 | 宏碁股份有限公司 | Digital television with picture switching function and method applied thereto |
| CN101588488A (en) * | 2009-06-18 | 2009-11-25 | 北京浪弯融科科技有限责任公司 | Multiple-position streaming media transmitting method as well as multiple-position streaming media broadcasting method and system |
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