CN101072359A - Method, system and user end for realizing network media audio-video synchronization - Google Patents
Method, system and user end for realizing network media audio-video synchronization Download PDFInfo
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- CN101072359A CN101072359A CNA2007101079627A CN200710107962A CN101072359A CN 101072359 A CN101072359 A CN 101072359A CN A2007101079627 A CNA2007101079627 A CN A2007101079627A CN 200710107962 A CN200710107962 A CN 200710107962A CN 101072359 A CN101072359 A CN 101072359A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/24—Systems for the transmission of television signals using pulse code modulation
- H04N7/52—Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
- H04N21/43072—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of multiple content streams on the same device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64746—Control signals issued by the network directed to the server or the client
- H04N21/64753—Control signals issued by the network directed to the server or the client directed to the client
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/654—Transmission by server directed to the client
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/654—Transmission by server directed to the client
- H04N21/6543—Transmission by server directed to the client for forcing some client operations, e.g. recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
Abstract
The method includes steps: main controlling user sends address of current playing network media and playing info to the controlled users joined the synchronous audiovisual, and the playing information includes info of playing schedule, and info of playing state; based on address of network media, and info of playing schedule, the controlled user executes operations indicated by info of playing state to realize the synchronous audio visual with the main controlling user. The invention also discloses the system, and user end for realizing synchronous audiovisual from network media. In the method, main controlling user does not need to sample current playing content of network media and to send the sampled content to the controlled users, instead sends address of network media and playing information to the controlled users to let controlled users execute operations indicated by info of playing state. Thus, users can synchronize audiovisual network media smartly.
Description
Technical field
The present invention relates to network communications technology field, concrete be particularly related to a kind of method, system and user side of realizing network media audio-video synchronization.
Background technology
Network media player is that a kind of computer local hard drive that do not need is preserved media file, the instrument that can directly from network, obtain media resource and play in real time just, so not only the user is easy to operate, and can save local resource.Existing a lot of media coding forms are all supported the mode of operation of the broadcast while downloading, and when the application network media renderer plays network media, the network address can be URL (unified resource location), also can be the network seed of point to point network technology P2P.With the online music player is example, some is to utilize the P2P network allow the online broadcast magnanimity of user music, also some is to use fixing music servers stably to provide service to the user, also some obtains the URL address of required music by search engine, thereby realize the function of online broadcast, make the user can appreciate the most complete up-to-date music quickly and easily.
Existing network direct broadcasting technology can provide the effect of audio-video synchronization, for example participates in the same video content that all live users of P2P can both watch same channel synchronously.When adopting the P2P mode to carry out net cast, the live operator of P2P is provided with one or more P2P seed server (if distributed many seed server, then they are distributed in the different network segments usually, so that provide higher bandwidth to the user); When a new user is linked into this Internet video, system seeks part and distributes to this new user with its comparatively approaching node in existing line node, node type can be the node of the fastest network segment, nearest node, random node or seed server etc.; In the P2P data transmission procedure, can be with the video of set time as a blocks of data bag, each node is to the transmission situation of other node periodical exchange data block, if this node data downloaded bag is slower, then initiatively from other faster node download packet so that catch up with the progress of video playback; In the P2P visit, system can dynamically preserve fireballing IP addresses of nodes, and is fashionable in order to adding new user, returns this IP address to it and assists new user to improve downloading rate.When the mode of using P2P realized audio-video synchronization, the user can't independently select the media content that needs, because live video or audio content presetted by content supplier, so user's program request video content arbitrarily.
Existing network media player is when work, with local computer to the real-time sampling of video card or sound card output as input, and coding sends to the long-distance user, realize sharing synchronously in real time of the network media with this, the workflow of existing network media player as shown in Figure 1, this Fig. 1 shows between two users the synchronous situation of audiovisual that realizes:
Step 101: user A uses media player audio/video file in the playing network on local computer.
Step 102: the sound card of local computer and video card are gathered this signal in output audio/video file signal.
Step 103: the signal that collects is carried out being transmitted through the network to user B behind the compressed encoding.
Step 104: after the local computer that user B uses receives this signal it is decoded.
Step 105:, realize the audio-video synchronization between the user with the sound card or the video card of decoded multi-medium data input local computer.
By above-mentioned description to prior art as can be known, the media content that existing network media player is play need make the quality of media signal descend through sampling again after the output; And directly the media data that reads from sound card comprises all sound of current broadcast on the local computer, therefore may comprise noise, causes eliminating the interference of other application on the local computer; When the user attempts with a plurality of user's audio-video synchronization, because network user's access bandwidth is less, cause the bottleneck of audio visual effect easily.
Summary of the invention
The object of the present invention is to provide a kind of method that realizes network media audio-video synchronization, network medium contents sends after need sampling through output again in the prior art to overcome, thereby causes the media signal quality to descend the problem of audio-video synchronization weak effect.
The system of the realization network media audio-video synchronization that another object of the present invention is to provide a kind of sends through output sampling back with the network medium contents that overcomes in the existing system, causes the problem of media signal quality decline audio-video synchronization weak effect.
Another purpose of the present invention is to provide a kind of user terminal, to overcome the problem of audio-video synchronization weak effect between the existing user terminal.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of method that realizes network media audio-video synchronization comprises:
Main controlling user sends the network media address and the broadcast information of current broadcast to the controlled users that adds audio-video synchronization, and described broadcast information comprises playing progress rate information and broadcast state information;
Controlled users is carried out the operation of described broadcast state information indication according to described network media address and playing progress rate information, realizes and the described network media of main controlling user audio-video synchronization.
Described broadcast state information comprises: continue to play, suspend and play, drag forward and play or drag backward broadcast.
Described broadcast state information is play for continuing, and described controlled users is according to described network media address and playing progress rate information, and the operation of carrying out described broadcast state information indication comprises:
Controlled users sends the request of obtaining the described network media to described network media address corresponding server, comprises the current playing progress rate information of this network media in the described request;
Described server reads the content of the current playing progress rate of this network media when finishing, and this content is sent to controlled users;
Described controlled users continues to play the described network media according to the content that receives.
Expanded the P2P function between described main controlling user and the controlled users, described method further comprises:
Periodically send Data Update message between main controlling user and the controlled users, described Data Update message comprises network media address, playing progress rate information, broadcast state information and download progress information;
The slow user of download progress asks the subsequent content of the described network media according to described Data Update message in described main controlling user and the controlled users to the fast user of download progress;
The subsequent content of the described network media that the fast user of described download progress will download is sent to the slow user of described download progress.
Described broadcast state information is play for suspending, and controlled users is according to described network media address and playing progress rate information, and the operation of carrying out described broadcast state information indication comprises:
Controlled users stops to send the request of obtaining the described network media to described network media address corresponding server;
Described network media address corresponding server stops to send network medium contents to described controlled users;
Described controlled users is suspended the described network media of broadcast from described playing progress rate information.
Described method further comprises:
The described Data Update message of dwelling period transmission between main controlling user and the controlled users, and the subsequent content that the fast user of described download progress stops the described network media will to have downloaded is sent to the slow user of described download progress.
Described method further comprises: any one party in main controlling user and the controlled users stops the described network media of audio-video synchronization.
A kind of system that realizes network media audio-video synchronization comprises:
Web medium server is used to deposit the network media of audio-video synchronization;
The main controlling user end is used for sending to the controlled users end that adds audio-video synchronization the network media address and the broadcast information of current broadcast, and described broadcast information comprises playing progress rate information and broadcast state information;
The controlled users end is used for according to described network media address and playing progress rate information, carries out the operation of described broadcast state information indication, realizes and the described network media of main controlling user end audio-video synchronization.
A kind of user side comprises:
The unit that sends control information is used for sending to other user side that adds audio-video synchronization the network media address and the broadcast information of current broadcast, and described broadcast information comprises playing progress rate information and broadcast state information.
User side has been expanded the P2P function, and described user side further comprises:
Send the updating message unit, be used for periodically sending Data Update message to other user side that adds audio-video synchronization, described Data Update message comprises network media address, playing progress rate information, broadcast state information and download progress information;
Send network media unit, the download progress that is used for described user side sends the network media of having downloaded during greater than other user side to other user side;
Request network media unit, the download progress that is used for described user side are during less than other user side, to the described network media of other user side request.
A kind of user side comprises:
The receiving control information unit is used to receive the network media address and the broadcast information of the current broadcast that other user side sends, and described broadcast information comprises playing progress rate information and broadcast state information;
Carry out the control information unit, be used for, carry out the operation of broadcast state information indication, realize and the described network media of other user side audio-video synchronization according to network media address and playing progress rate information.
Described execution control information unit comprises:
Send request unit, be used for sending the request of obtaining the described network media, comprise the current playing progress rate information of this network media in the described request to described network media address corresponding server;
Receive network media unit, be used to receive the network media that described server sends.
User side has been expanded the P2P function, and described user side further comprises:
Send the updating message unit, be used for periodically sending Data Update message to other user side, described Data Update message comprises network media address, playing progress rate information, broadcast state information and download progress information;
Send network media unit, the download progress that is used for described user side sends the network media of having downloaded during greater than other user side to other user side;
Request network media unit, the download progress that is used for described user side are during less than other user side, to the described network media of other user side request.
By above technical scheme provided by the invention as seen, use the method that the present invention realizes network media audio-video synchronization, main controlling user need not after the network medium contents of the current broadcast output sampling, re-send to controlled users, but by network media address and broadcast information are sent to controlled users, controlled users is according to network media address and playing progress rate information, operations such as the lasting broadcast of execution broadcast state information indication, time-out broadcast, make between the user and to reach good collaborative entertainment effect by the audio-video synchronization network media neatly; Further, the present invention realizes between the user of the audio-video synchronization network media having guaranteed that by the P2P function of expansion the fluency of each user audio-video synchronization in the P2P network of forming improves the corresponding performance that strengthens system.
Description of drawings
Fig. 1 is the workflow diagram of existing network media player;
Fig. 2 is the first embodiment flow chart of the inventive method;
Fig. 3 is the second embodiment flow chart of the inventive method;
Fig. 4 is the 3rd embodiment flow chart of the inventive method;
Fig. 5 is the 4th embodiment flow chart of the inventive method;
Fig. 6 is the 5th embodiment flow chart of the inventive method;
Fig. 7 is the 6th embodiment flow chart of the inventive method;
Fig. 8 is the 7th embodiment flow chart of the inventive method;
Fig. 9 is the embodiment block diagram of system of the present invention;
Figure 10 is the first embodiment block diagram of user side of the present invention;
Figure 11 is the second embodiment block diagram of user side of the present invention.
Embodiment
Core of the present invention provides a kind of method that realizes network media audio-video synchronization, and main controlling user sends network media address, playing progress rate information and the broadcast state information of current broadcast in this method to the controlled users that adds audio-video synchronization; Controlled users is carried out the operation of broadcast state information indication according to network media address and playing progress rate information, thereby realizes and main controlling user audio-video synchronization consolidated network medium.
In order to make those skilled in the art person understand the present invention program better, and 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 flow chart of the inventive method first embodiment is as shown in Figure 2:
Step 201: main controlling user sends the network media address and the broadcast information of current broadcast to the controlled users that adds audio-video synchronization.
Wherein, controlled users can send the request that adds audio-video synchronization to main controlling user, perhaps invites controlled users to add audio-video synchronization by main controlling user.
Concrete, broadcast information comprises broadcast state information and playing progress rate information.Broadcast state information comprises lasting broadcast, suspends and play, drag forward and play or drag backward broadcast etc.; Playing progress rate information refers to the position of the current broadcast of the network media.
Step 202: controlled users is carried out the operation of broadcast state information indication according to network media address and playing progress rate information, realizes and the main controlling user audio-video synchronization network media.
Especially, when broadcast state information was lasting the broadcast, controlled users sent the request of obtaining the network media to network media address corresponding server, comprises the current playing progress rate information of this network media in this request; Server reads the content of the current playing progress rate of this network media when finishing, and this content is sent to controlled users; Controlled users continues to play this network media according to the content that receives.
Further, expanded the P2P function between main controlling user and the controlled users, then periodically send Data Update message between main controlling user and the controlled users, this Data Update message comprises network media address, playing progress rate information, broadcast state information and download progress information; The slow user of download progress asks the subsequent content of the network media according to Data Update message in main controlling user and the controlled users to the fast user of download progress; The subsequent content of the network media that the fast user of download progress will download is sent to the slow user of download progress.
Especially, when broadcast state information was play for suspending, controlled users stopped to send the request of obtaining the network media to network media address corresponding server; Network media address corresponding server stops to send network medium contents to this controlled users; Controlled users is suspended this network media of broadcast from playing progress rate information.
Further, the described Data Update message of dwelling period transmission between main controlling user and the controlled users, and the subsequent content that the fast user of download progress stops the network media will to have downloaded is sent to the slow user of download progress.
Especially, any one party in main controlling user and the controlled users can stop the audio-video synchronization network media.
The flow chart of the inventive method second embodiment as shown in Figure 3, this embodiment shows and continues to play a certain network media resource between two users, thereby realize the flow process of audio-video synchronization, wherein send the request that adds audio-video synchronization to main controlling user A by controlled users B:
Step 301: main controlling user A from network media provider program request, obtain and play in real time a certain network media resource.
Step 302: controlled users B initiatively sends the request that adds audio-video synchronization to main controlling user A.
Step 303: main controlling user A is sent to controlled users B with information such as the network address of the network media resource of current broadcast and current playing progress rates.
Step 304: controlled users B asks this network media resource according to the network address and the current playing progress rate information of current play content from this network media resource to network media provider.
Concrete, current playing progress rate information is generally the offset information of this network media resource, and this offset information is the side-play amount of the network media resource of correspondence.For example, the size of this network media resource is the 3M byte, and time corresponding was 50 seconds when this network media was played to the 1M byte, if this moment, controlled users B added, then the offset information that sends of main controlling user A be exactly this network media resource in the position of 50 seconds place corresponding contents, i.e. the side-play amount of this network media resource.
Step 305: network media provider is according to the current playing progress rate information of this network media resource, and the current play content that sends this network media resource is to controlled users B.
Concrete, network media provider is according to the offset information that obtains in the step 304, begins order from the side-play amount of the current broadcast of this network media resource and sends this network media resource to controlled users B.
A first MP3 song of listening to synchronously in the network with user A and user B is an example below, describes the implementation procedure of second embodiment in detail.The audio data frame that in mp3 file, comprises a plurality of orders, sample rate between the Frame can be different with length, but no matter how much length of Frame is, the reproduction time of each Frame correspondence is 26ms, therefore each MP3 audio file is made up of the Frame of several 26ms, has play the Frame of being correlated with arbitrarily all corresponding constantly.
After user A had obtained the network linking address " http: // 192.168.0.1/music/words.mp3 " of song S by approach such as search, user A used the online music player to obtain in real time and played songs S according to this chained address;
User B sends the request that song S is listened in adding synchronously to user A after knowing the current tin song state of user A; After user A accepts the request of user B, return the network address " http: // 192.168.0.1/music/words.mp3 " of song S to user B, and the current playing progress rate information of listening to song S of user A, the size of supposing song S is the 3M byte, and the Frame place of user A uppick this moment 1M byte, then " 1M " is the playing progress rate information of song S;
After user B receives the network address and playing progress rate information of song S, send the content requests of song S to the network address " http: // 192.168.0.1/music/words.mp3 ", (the ending message here can be the 3M of song S ending place correspondence to carry the current playing progress rate information " 1M " of song S and ending message in this content requests, also can be based on the download in batches of the Frame of some, for example download once) every the 0.3M request;
Network media provider's server 192.168.0.1 is according to the content requests of receiving, reads file words.mp3 from this server and plays the data content of ending message from the 1M byte, and this data content is sent to user B;
After user B receives data content, promptly begin to play, and during playing, user B can obtain the subsequent data frame of this song S automatically from server from the 1M byte of song S, realize lasting and with this song of user A synchronous playing S.
The flow chart of the inventive method the 3rd embodiment as shown in Figure 4, this embodiment shows between two users and to continue to play a certain network media resource, thereby realizes the flow process of audio-video synchronization, wherein invites controlled users B to add audio-video synchronization by main controlling user A:
Step 401: main controlling user A from network media provider program request, obtain and play in real time a certain network media resource.
Step 402: main controlling user A invites controlled users B to add audio-video synchronization, and information such as the network address of the network media resource of current broadcast and current playing progress rate are sent to controlled users B.
Step 403: controlled users B receives and returns the information of accepting this invitation after this invitation to main controlling user A (information that controlled users B also can select to return this invitation of refusal is to main controlling user A, thereby end audio-video synchronization flow process).
Step 404: controlled users B asks this network media resource according to the network address and the current playing progress rate information of current play content from this network media resource to network media provider.
Step 405: network media provider is according to the current playing progress rate information of this network media resource, and the current play content that sends this network media resource is to controlled users B.
When user A and user B listened to a first MP3 song in the network synchronously, the specific implementation process of the 3rd embodiment and the specific implementation process of second embodiment were similar, and difference only is that user A invites user B to add and listens to synchronously, does not therefore repeat them here.
The flow chart of the inventive method the 4th embodiment as shown in Figure 5, it is slower from the speed that network media provider obtains network medium contents that this embodiment shows two controlled users B among the user, when influencing normal play, P2P function by expansion continues to play this network media, thereby realizes the flow process of audio-video synchronization:
Step 501: main controlling user A from network media provider program request, obtain and play in real time a certain network media resource.
Step 502: controlled users B initiatively sends the request (this step also can be that main controlling user A invites controlled users B to add audio-video synchronization) that adds audio-video synchronization to main controlling user A.
Step 503: main controlling user A is sent to controlled users B with information such as the network address of the network media resource of current broadcast and current playing progress rates.
Step 504: controlled users B asks this network media resource according to the network address and the current playing progress rate information of current play content from this network media resource to network media provider.
Step 505: network media provider is according to the current playing progress rate information of this network media resource, and the current play content that sends this network media resource is to controlled users B.
The network address, playing progress rate information, broadcast state information and the download progress information that periodically send the network media resource of current broadcast between step 506: main controlling user A and the controlled users B is to the other side, with these information as Data Update message.
Concrete, download progress is meant the Frame of this network media resource of downloading from network media provider, and for the smoothness of playing, the data downloaded frame is always led over the Frame of current broadcast usually.
Step 507: controlled users B is slower than the subsequent network media content of broadcasting speed owing to reason speeds of download such as network failures to main controlling user A request according to the Data Update message of periodical exchange.
The request of step 508: main controlling user A response controlled users B sends to controlled users B with the Frame of the subsequent network media content correspondence downloaded.
Still a first MP3 song of listening to synchronously in the network with user A and user B is an example, describes the implementation procedure of the 4th embodiment in detail.In this implementation procedure, suppose user B because network failure or bandwidth problem have caused download progress to be slower than current playing progress rate, and the downloading rate of user A is normal.
After user A had obtained the network linking address " http: // 192.168.0.1/music/words.mp3 " of song S by approach such as search, user A used the online music player to obtain in real time and played songs S according to this chained address;
User B sends the request that song S is listened in adding synchronously to user A after knowing the current tin song state of user A;
After user A accepts the request of user B, return the network address " http: // 192.168.0.1/music/words.mp3 " of song S to user B, and the current playing progress rate information of listening to song S of user A, the size of supposing song S is the 3M byte, and the Frame place of user A uppick this moment 1M byte, then 1M is the playing progress rate information of song S;
After user B receives the network address and playing progress rate information of song S, send the content requests of song S to the network address " http: // 192.168.0.1/music/words.mp3 ", (the ending message here can be the 3M of song S ending place correspondence to carry the current playing progress rate information " 1M " of song S and ending message in this content requests, also can be based on the download in batches of the Frame of some, for example download once) every the 0.3M request;
Network media provider's server 192.168.0.1 is according to the content requests of receiving, reads file words.mp3 from this server and plays the data content of ending message from the 1M byte, and this data content is sent to user B;
After user B received data content, promptly the 1M byte from song S began to play, and during playing, user B can obtain the subsequent data frame of this song S automatically from server;
User A and user B periodically send playing progress rate information, broadcast state information and the download progress information of the song S Data Update message as this song S broadcast to the other side;
User B is slower than the progress of played songs S owing to the network failure reason with server 192.168.0.1 causes from this server the progress of download song S, therefore user B to the needed subsequent data frame of user A request played songs S, supposes the Frame of the being asked data content corresponding to the 1.6M-2.0M byte of song S according to Data Update message;
User A is because download progress is better, therefore receive the request of user B after, the data content of the 1.6M-2.0M byte of the song S that downloaded is sent to user B, thereby has guaranteed when user B network failure, to realize listening to song S synchronously with user A.
The flow chart of the inventive method the 5th embodiment as shown in Figure 6, this embodiment shows between two users and to continue to play a certain network media after a period of time, suspends the broadcast of this network media, thereby realizes the flow process of audio-video synchronization:
When step 601: main controlling user A suspends the network media resource of current broadcast, send this network media resource addresses simultaneously, information such as playing progress rate information and halted state information are to controlled users B.
After step 602: controlled users B receives the information of main controlling user A transmission, to the subsequent content of this network media of network media provider interrupt requests.
Especially, when having expanded the P2P function between main controlling user A and the controlled users B, controlled users B is in this network media subsequent content of network media provider interrupt requests, also stop and main controlling user A between the follow-up network medium contents Frame of exchange.
Step 603: controlled users B suspends the broadcast of this network medium contents, waits for that simultaneously main controlling user A sends follow-up broadcast state information.
Concrete, main controlling user A suspend to play this network medium contents after a period of time, can comprise to the broadcast state information that user B sends continuing state information or the state information of playing that stops to play or dragging the state information of broadcast forward or drag the state information etc. of broadcast backward.
In this embodiment five, also can at first suspend the broadcast of current network medium by controlled users B, and send relevant control information to main controlling user A.
Especially, if controlled users B at first stops the broadcast of current network medium, represent that then it initiatively withdraws from current audio-video synchronization state, then controlled users B sends to main controlling user A and stops synchronous state information, main controlling user A no longer sends the follow-up play state information to controlled users B, and if expanded the P2P function between two users, then main controlling user A also stops to send to controlled users B the synchronous updating message of this network media Frame simultaneously.
Still a first MP3 song of listening to synchronously in the network with user A and user B is an example, describes the implementation procedure of the 5th embodiment in detail.
User A and user B are after continuing to have listened to song S a period of time synchronously, user A suspends played songs S, send the network address " http: // 192.168.0.1/music/words.mp3 " of following control information: song S simultaneously to user B, the current playing progress rate information of song S (is supposed the 2M byte content place of the current uppick song of user A S, then with information " 2M " as playing progress rate information), and the current broadcast state information (the current time-out of user A is play this song S, so this broadcast state information is for stopping broadcast) of song S;
After user B receives the control information of user A transmission, from the playing progress rate information of this song S, know, user A has suspended broadcast at the 2M of song S content place, so user B no longer asks the subsequent content of this song S to network media provider's server 192.168.0.1; If expanded the P2P function between user A and the user B, then user B is except stopping to the subsequent content of server 192.168.0.1 request song S, stops to exchange with user A the updating message of the Frame after the 2M byte content of this song S simultaneously;
User A and user B suspend played songs S simultaneously, and simultaneously user B waits for that user A sends the follow-up play state information of song S, comprise continuing played songs S or stopping played songs S or drag played songs S forward or drag played songs S backward.
The flow chart of the inventive method the 6th embodiment as shown in Figure 7, this embodiment shows between three users and continues to play a certain network media by the P2P function, thereby realize the flow process of audio-video synchronization between three users, wherein controlled users C is slower from the speed that network media provider obtains network medium contents:
Step 701: main controlling user A from network media provider program request, obtain and play in real time a certain network media resource.
Step 702: controlled users B initiatively sends the request (this step also can be that main controlling user A invites controlled users B to add audio-video synchronization) that adds audio-video synchronization to main controlling user A.
Step 703: main controlling user A is sent to controlled users B with information such as the network address of the network media resource of current broadcast and current playing progress rates.
Step 704: controlled users B asks this network media resource according to the network address and the current playing progress rate information of current play content from this network media resource to network media provider.
Step 705: network media provider is according to the current playing progress rate information of this network media resource, and the current play content that sends this network media resource is to controlled users B.
The network address, playing progress rate information, broadcast state information and the download progress information that periodically send the network media resource of current broadcast between step 706: main controlling user A and the controlled users B is to the other side, with these information as Data Update message.
Step 707: controlled users B is slower than the subsequent network media content of broadcasting speed owing to reason speeds of download such as network failures to main controlling user A request according to the Data Update message of periodical exchange.
The request of step 708: main controlling user A response controlled users B sends to controlled users B with the Frame of the subsequent network media content correspondence downloaded.
Step 709: controlled users C initiatively sends the request (this step also can be that main controlling user A invites controlled users C to add audio-video synchronization) that adds audio-video synchronization to main controlling user A.
Step 710: main controlling user A is sent to controlled users C with the main controlling user A of the network address of the network media resource of current broadcast, current playing progress rate information, current audio-video synchronization and the network address and the port of controlled users B.
Periodically send the network address, playing progress rate information, broadcast state information and the download progress information of the network media resource of current broadcast between step 711: main controlling user A, controlled users B and the controlled users C, and with these information as Data Update message.
Step 712: controlled users C is slower than the subsequent network media content of broadcasting speed owing to reason speeds of download such as network failures to main controlling user A and controlled users B request according to the Data Update message of periodical exchange.
The request of step 713: main controlling user A and controlled users B response controlled users C sends to controlled users C with the Frame of the subsequent network media content correspondence downloaded.
User more than three continues to play a certain network media, thereby the step of realization audio-video synchronization and process and the foregoing description six are similar, do not repeat them here.
A first MP3 song of listening to synchronously in the network with user A, user B and user C is an example, describes the implementation procedure of the 6th embodiment in detail.In this implementation procedure, suppose user C because network failure or bandwidth problem have caused download progress to be slower than current playing progress rate.
After user A had obtained the network linking address " http: // 192.168.0.1/music/words.mp3 " of song S by approach such as search, user A used the online music player to obtain in real time and played songs S according to this chained address;
User B sends the request that song S is listened in adding synchronously to user A after knowing the current tin song state of user A;
After user A accepts the request of user B, return the network address " http: // 192.168.0.1/music/words.mp3 " of song S to user B, and the current playing progress rate information of listening to song S of user A, the size of supposing song S is the 3M byte, and the Frame place of user A uppick this moment 1M byte, then 1M is the playing progress rate information of song S;
After user B receives the network address and playing progress rate information of song S, to the content requests of the network address " http: // 192.168.0.1/music/words.mp3 " transmission song S, carry current playing progress rate information " 1M " and the ending message of song S in this content requests;
Network media provider's server 192.168.0.1 is according to the content requests of receiving, reads file words.mp3 from this server and plays the data content of ending message from the 1M byte, and this data content is sent to user B;
After user B received data content, promptly the 1M byte from song S began to play, and during playing, user B can obtain the subsequent data frame of this song S automatically from server;
User A and user B periodically send playing progress rate information, broadcast state information and the download progress information of the song S Data Update message as this song S broadcast to the other side;
User B is slower than the progress of played songs S owing to the network failure reason with server 192.168.0.1 causes from this server the progress of download song S, therefore user B to the needed subsequent data frame of user A request played songs S, supposes the Frame of the being asked data content corresponding to the 1.5M-2.0M byte of song S according to Data Update message;
User A is because download progress is better, therefore receive the request of user B after, the data content of the 1.5M-2.0M byte of the song S that downloaded is sent to user B, thereby has guaranteed when user B network failure, to realize listening to song S synchronously with user A;
User C sends the request that song S is listened in adding synchronously to user A after knowing the current tin song state of user A;
After user A accepts the request of user C, return the network address " http: // 192.168.0.1/music/words.mp3 " of song S to user C, the current playing progress rate information of listening to song S of user A, suppose the Frame place of user A uppick this moment 1.5M byte, then 1.5M is the playing progress rate information of song S, also returns the network address and the port information of user A and user B simultaneously to user C;
Periodically send playing progress rate information, broadcast state information and the download progress information of song S Data Update message between user A, user B and the user C as this song S broadcast;
User C is slower than the progress of played songs S owing to the network failure reason with server 192.168.0.1 causes from this server the progress of download song S, therefore user C asks the needed subsequent data frame of played songs S according to Data Update message download progress in user A and user B faster than oneself user, supposes the Frame of the being asked data content corresponding to the 2.0M-2.5M byte of song S;
User A is because download progress is better, therefore after receiving the request of user C, the data content of the 2.0M-2.5M byte of the song S that downloaded is sent to user C, thereby guaranteed when user C network failure, to realize listening to song S synchronously with user A and user B.
The flow chart of the inventive method the 7th embodiment as shown in Figure 8, this embodiment shows the P2P network that has formed sealing between three users, they continue to play a certain network media and suspend this network media of broadcast after a period of time, thereby realize the flow process of audio-video synchronization:
When step 801: main controlling user A suspends the network media resource of current broadcast, send information such as this network media resource addresses, playing progress rate information and halted state information to controlled users B and controlled users C simultaneously.
After step 802: controlled users B and controlled users C receive the information that main controlling user A sends,, stop the synchronous updating message of the network media Frame that sends between the user simultaneously to the subsequent content of this network media of network media provider interrupt requests.
Step 803: controlled users B and controlled users C suspend the broadcast of this network medium contents, wait for that simultaneously main controlling user A sends follow-up broadcast state information.
Concrete, main controlling user A suspend to play this network medium contents after a period of time, can comprise to the broadcast state information that user B and user C send continuing state information or the state information of playing that stops to play or dragging the state information of broadcast forward or drag the state information etc. of broadcast backward.
In this embodiment seven, also can at first suspend the broadcast of current network medium, and send relevant control information to other user by among controlled users B or the controlled users C any one.
Especially, if controlled users B or controlled users C at first stop the broadcast of current network medium, represent that then it initiatively withdraws from current audio-video synchronization state, then this controlled users sends to main controlling user A and stops synchronous state information, and main controlling user A no longer sends the follow-up play state information to this controlled users.
User more than three suspends the broadcast of a certain network media, thereby the step of realization audio-video synchronization and process and the foregoing description seven are similar, do not repeat them here.
Still a first MP3 song of listening to synchronously in the network with user A, user B and user C is an example, describes the implementation procedure of the 7th embodiment in detail.
User A, user B and user C are after continuing to have listened to song S a period of time synchronously, user A suspends played songs S, while sends the network address " http: // 192.168.0.1/music/words.mp3 " of following control information: song S to user B and user C, the current playing progress rate information of song S (is supposed the 2M byte content place of the current uppick song of user A S, then with information " 2M " as playing progress rate information), and the current broadcast state information (the current time-out of user A is play this song S, so this broadcast state information is play for suspending) of song S;
After user B and user C receive the control information of user A transmission, from the playing progress rate information of this song S, know, user A has suspended broadcast at the 2M of song S content place, therefore user B and user C no longer ask the subsequent content of this song S to network media provider's server 192.168.0.1, and stop to exchange each other the updating message of the Frame after the 2M byte content of this song S simultaneously;
User A, user B and user C suspend played songs S simultaneously, simultaneously user B and user C wait for that user A sends the follow-up play state information of song S, comprise continuing played songs S or stopping played songs S or drag played songs S forward or drag played songs S backward.
The present invention realize network media audio-video synchronization system the embodiment block diagram as shown in Figure 9:
This system comprises: web medium server 910 is used to deposit the network media of audio-video synchronization; Main controlling user end 920 is used for sending to the controlled users that adds audio-video synchronization the network media address and the broadcast information of current broadcast, and this broadcast information comprises playing progress rate information and broadcast state information; Controlled users end 930 is used for according to network media address and playing progress rate information, carries out the operation of broadcast state information indication, realizes and the described network media of main controlling user audio-video synchronization.
The first embodiment block diagram of user side of the present invention is as shown in figure 10:
This user side comprises: the cell S 10 that sends control information, be used for sending the network media address and the broadcast information of current broadcast to other user side that adds audio-video synchronization, and this broadcast information comprises playing progress rate information and broadcast state information; Send updating message cell S 20, be used for periodically sending Data Update message to other user side that adds audio-video synchronization, this Data Update message comprises network media address, playing progress rate information, broadcast state information and download progress information; Send network media cell S 30, when being used for download progress when this user side greater than other user side, the network media of having downloaded to other user side transmission; Request network media cell S 40 is when being used for download progress when user side less than other user side, to other this network media of user side request.
The second embodiment block diagram of user side of the present invention is as shown in figure 11:
This user side comprises: receiving control information cell S 50, be used to receive the network media address and the broadcast information of the current broadcast that other user side sends, and described broadcast information comprises playing progress rate information and broadcast state information; Carry out control information cell S 60, be used for, carry out the operation of broadcast state information indication, realize and the described network media of other user side audio-video synchronization according to network media address and playing progress rate information; Send updating message cell S 70, be used for periodically sending Data Update message to other user side, described Data Update message comprises network media address, playing progress rate information, broadcast state information and download progress information; Send network media cell S 80, the download progress that is used for this user side sends the network media of having downloaded during greater than other user side to other user side; Request network media cell S 90, the download progress that is used for this user side are during less than other user side, to the described network media of other user side request.
Wherein, carry out control information cell S 60 and comprise transmission request unit S61, be used for sending the request of obtaining this network media, comprise the current playing progress rate information of this network media in this request to network media address corresponding server; Receive network media cell S 62, be used for the network media that reception server sends.
By above embodiment provided by the invention as can be known, use the method that the present invention realizes network media audio-video synchronization, main controlling user is by sending to controlled users with network media address and broadcast information, controlled users is according to network media address and playing progress rate information, carry out the lasting broadcast of broadcast state information indication, suspend operations such as broadcast, make between the user audio-video synchronization network media neatly, reach good collaborative entertainment effect, and the present invention realizes between the user of audio-video synchronization the P2P function by expansion, improved the fluency of audio-video synchronization, the corresponding performance that strengthens system.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (13)
1, a kind of method that realizes network media audio-video synchronization is characterized in that, comprising:
Main controlling user sends the network media address and the broadcast information of current broadcast to the controlled users that adds audio-video synchronization, and described broadcast information comprises playing progress rate information and broadcast state information;
Controlled users is carried out the operation of described broadcast state information indication according to described network media address and playing progress rate information, realizes and the described network media of main controlling user audio-video synchronization.
2, method according to claim 1 is characterized in that, described broadcast state information comprises: continue to play, suspend and play, drag forward and play or drag backward broadcast.
3, method according to claim 2 is characterized in that, described broadcast state information is play for continuing, and described controlled users is according to described network media address and playing progress rate information, and the operation of carrying out described broadcast state information indication comprises:
Controlled users sends the request of obtaining the described network media to described network media address corresponding server, comprises the current playing progress rate information of this network media in the described request;
Described server reads the content of the current playing progress rate of this network media when finishing, and this content is sent to controlled users;
Described controlled users continues to play the described network media according to the content that receives.
4, method according to claim 3 is characterized in that, has expanded the P2P function between described main controlling user and the controlled users, and described method further comprises:
Periodically send Data Update message between main controlling user and the controlled users, described Data Update message comprises network media address, playing progress rate information, broadcast state information and download progress information;
The slow user of download progress asks the subsequent content of the described network media according to described Data Update message in described main controlling user and the controlled users to the fast user of download progress;
The subsequent content of the described network media that the fast user of described download progress will download is sent to the slow user of described download progress.
According to claim 3 or 4 described methods, it is characterized in that 5, described broadcast state information is play for suspending, controlled users is according to described network media address and playing progress rate information, and the operation of carrying out described broadcast state information indication comprises:
Controlled users stops to send the request of obtaining the described network media to described network media address corresponding server;
Described network media address corresponding server stops to send network medium contents to described controlled users;
Described controlled users is suspended the described network media of broadcast from described playing progress rate information.
6, method according to claim 5 is characterized in that, described method further comprises:
The described Data Update message of dwelling period transmission between main controlling user and the controlled users, and the subsequent content that the fast user of described download progress stops the described network media will to have downloaded is sent to the slow user of described download progress.
7, method according to claim 1 is characterized in that, described method further comprises: any one party in main controlling user and the controlled users stops the described network media of audio-video synchronization.
8, a kind of system that realizes network media audio-video synchronization is characterized in that, comprising:
Web medium server is used to deposit the network media of audio-video synchronization;
The main controlling user end is used for sending to the controlled users end that adds audio-video synchronization the network media address and the broadcast information of current broadcast, and described broadcast information comprises playing progress rate information and broadcast state information;
The controlled users end is used for according to described network media address and playing progress rate information, carries out the operation of described broadcast state information indication, realizes and the described network media of main controlling user end audio-video synchronization.
9, a kind of user side is characterized in that, comprising:
The unit that sends control information is used for sending to other user side that adds audio-video synchronization the network media address and the broadcast information of current broadcast, and described broadcast information comprises playing progress rate information and broadcast state information.
10, user side according to claim 9 is characterized in that, user side has been expanded the P2P function, and described user side further comprises:
Send the updating message unit, be used for periodically sending Data Update message to other user side that adds audio-video synchronization, described Data Update message comprises network media address, playing progress rate information, broadcast state information and download progress information;
Send network media unit, the download progress that is used for described user side sends the network media of having downloaded during greater than other user side to other user side;
Request network media unit, the download progress that is used for described user side are during less than other user side, to the described network media of other user side request.
11, a kind of user side is characterized in that, comprising:
The receiving control information unit is used to receive the network media address and the broadcast information of the current broadcast that other user side sends, and described broadcast information comprises playing progress rate information and broadcast state information;
Carry out the control information unit, be used for, carry out the operation of broadcast state information indication, realize and the described network media of other user side audio-video synchronization according to network media address and playing progress rate information.
12, user side according to claim 11 is characterized in that, described execution control information unit comprises:
Send request unit, be used for sending the request of obtaining the described network media, comprise the current playing progress rate information of this network media in the described request to described network media address corresponding server;
Receive network media unit, be used to receive the network media that described server sends.
13, user side according to claim 12 is characterized in that, user side has been expanded the P2P function, and described user side further comprises:
Send the updating message unit, be used for periodically sending Data Update message to other user side, described Data Update message comprises network media address, playing progress rate information, broadcast state information and download progress information;
Send network media unit, the download progress that is used for described user side sends the network media of having downloaded during greater than other user side to other user side;
Request network media unit, the download progress that is used for described user side are during less than other user side, to the described network media of other user side request.
Priority Applications (2)
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| CNA2007101079627A CN101072359A (en) | 2007-05-18 | 2007-05-18 | Method, system and user end for realizing network media audio-video synchronization |
| PCT/CN2008/070997 WO2008141577A1 (en) | 2007-05-18 | 2008-05-16 | Method, and network media player for playing network media synchronously |
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| CNA2007101079627A CN101072359A (en) | 2007-05-18 | 2007-05-18 | Method, system and user end for realizing network media audio-video synchronization |
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