WO2008141577A1 - Procédé et lecteur multimédia réseau pour lire des fichiers multimédia réseau de manière synchrone - Google Patents

Procédé et lecteur multimédia réseau pour lire des fichiers multimédia réseau de manière synchrone Download PDF

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Publication number
WO2008141577A1
WO2008141577A1 PCT/CN2008/070997 CN2008070997W WO2008141577A1 WO 2008141577 A1 WO2008141577 A1 WO 2008141577A1 CN 2008070997 W CN2008070997 W CN 2008070997W WO 2008141577 A1 WO2008141577 A1 WO 2008141577A1
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WIPO (PCT)
Prior art keywords
network media
play
user
playing
information
Prior art date
Application number
PCT/CN2008/070997
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English (en)
Chinese (zh)
Inventor
Peng Hu
Xinliang Wang
Jun Zhou
Original Assignee
Tencent Technology (Shenzhen) Company Limited
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Publication of WO2008141577A1 publication Critical patent/WO2008141577A1/fr

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Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to the field of network communication technologies, and in particular, to a network media synchronous playback method and a network media player. Background technique
  • the network media player is a tool that can directly obtain media resources and perform real-time playback from the network without saving the media files on the computer local hard disk.
  • the use of a network media player not only facilitates user operations, but also saves local resources.
  • the network address may be a uniform resource location URL address, or may be a peer-to-peer network technology P2P network seed.
  • a P2P network can be used to play massive music online, or a fixed music server can be used to stably provide services to users, and a search engine can also obtain a URL address of a desired music, thereby realizing online play. , to enable users to quickly and easily enjoy the latest and most complete music.
  • a network media player (referred to as a master user or a master media player) running on the master user client plays a network media
  • the network media player running on its controlled user client It can be referred to as a controlled user or a controlled media player. It can also automatically play the same network media as the master media player.
  • the embodiment of the invention provides a method for realizing synchronous playback of network media, so as to realize synchronous play of network media.
  • the embodiment of the invention further provides a network media player to realize synchronous play with other network media players.
  • a method for implementing synchronous playback of a network media according to an embodiment of the present invention includes:
  • a network media player provided by an embodiment of the present invention includes: a first unit, configured to receive a network media address, play progress information, and play status information from the master media player;
  • a second unit configured to acquire, according to the play progress information, the corresponding content of the network media currently played by the master media player from the network media address, and play the acquired network media according to the play state information Corresponding content.
  • the first unit is configured to send the currently played network media address, play progress information, and play status information to the controlled media player.
  • the network media synchronous playing method and the network media player provided by the embodiment of the present invention, the master user sends the network media address, the playing progress information, and the playing state information to the controlled user, and the controlled user at least according to the network media address and playing.
  • BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow chart showing the operation of a network media player in the prior art.
  • FIG. 2 is a flowchart of a method for implementing synchronous playback of a network medium according to a first embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for implementing synchronous playback of network media in a second embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for implementing synchronous playback of network media in a third embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for implementing synchronous playback of a network medium according to a fourth embodiment of the present invention.
  • FIG. 6 is a flowchart of a method for implementing synchronous playback of network media in a fifth embodiment of the present invention.
  • FIG. 7 is a flowchart of a method for implementing synchronous playback of a network medium according to a sixth embodiment of the present invention.
  • FIG. 8 is a flowchart of a method for implementing synchronous playback of a network medium according to a seventh embodiment of the present invention.
  • FIG. 9 is a system block diagram of implementing synchronous playback of network media in an eighth embodiment of the present invention.
  • FIG. 10 is a structural block diagram of a network media player in a ninth embodiment of the present invention.
  • FIG. 11 is a structural block diagram of a network media player in a tenth embodiment of the present invention.
  • the embodiments of the present invention will be better understood, and the objects, features, and advantages of the embodiments of the present invention will become more apparent. The invention is further illustrated in detail.
  • FIG. 1 is a flowchart of the operation of a network media player in the prior art.
  • Existing network media player will work when The local computer takes the real-time sample output of the graphics card or the sound card as an input, and sends the code to the remote user, thereby realizing the real-time synchronous sharing of the network media.
  • the workflow of the existing network media player is illustrated by taking audio and video synchronization between two users as an example.
  • Step 101 User A uses a network media player to play audio and video files on the network on the local computer.
  • Step 102 The sound card and the graphics card of the local computer collect the video file signal while collecting the signal.
  • Step 103 Compress and encode the collected signal and transmit it to user B through the network.
  • Step 104 The local computer used by User B decodes the signal after receiving it.
  • Step 105 Input the decoded multimedia data into a sound card or a video card of the local computer to realize synchronous viewing between users.
  • the inventor of the present application finds that the media content played by the existing network media player is degraded, so that the quality of the media signal is degraded; and the media data directly after the sample includes the local computer. All the currently playing sounds may also include noise, so other applications on the local computer may interfere with the effect of synchronous audio and video; and because the user access bandwidth is often small, when the user tries to synchronize with other users, the network Bandwidth is a bottleneck for audiovisual effects.
  • the master user sends the address, playing progress information, and playing state information of the currently played network media to the controlled user joining the synchronized audiovisual.
  • the network media address is an address of the network media currently played by the master user;
  • the play state information is current play state information of the network media, and may be continuous play, pause play, forward drag play, or drag backward One of moving play, fast forward play, and fast reverse play;
  • play progress information refers to the position information played before the network media.
  • the controlled user obtains the corresponding content of the network media currently played by the master user from the network media address according to the playback progress information, and performs the same playing state in the playback state information as the corresponding content of the acquired network media. Operation, so as to synchronize the same network media with the master user.
  • FIG. 2 is a flowchart of a method for implementing synchronous playback of a network medium according to a first embodiment of the present invention. As shown in Figure 2, the flow chart of the method is as follows:
  • Step 201 The master user sends the currently played network media address, play status information, and play progress information to the controlled user who joins the synchronized play.
  • the controlled user may actively send a request to the master user to join the synchronous play, or may be invited by the master user to join the synchronous play.
  • Step 202 The controlled user acquires the current playing content of the network media from the server corresponding to the network media address according to the network media address and the playing progress information, and performs the operation indicated by the playing state information, so as to synchronously play the network media with the master user.
  • the controlled user needs to obtain the current playing content of the network media from the server corresponding to the network media address according to the network media address, the playing progress information, and the playing state information.
  • the controlled user sends a request for acquiring the network media to the server corresponding to the network media address, where the request includes the network media playing progress information; the server reads the network media playing progress information, and the The content of the data frame after the current play position identified by the play progress information in the network media is sent to the controlled user; the controlled user plays the corresponding content of the obtained network media according to the play status information, and the obtained content is continuously played.
  • the content of the data frame after the current play position identified by the play progress information in the network medium is a request for acquiring the network media to the server corresponding to the network media address, where the request includes the network media playing progress information; the server reads the network media playing progress information, and the The content of the data frame after the current play position identified by the play progress information in the network media is sent to the controlled user; the controlled user plays the corresponding content of the obtained network media according to the play status information, and the obtained content is continuously played.
  • the content of the data frame after the current play position identified by the play progress information in the network medium is
  • the playback status information When the playback status information is dragged forward or backward, the playback status information further includes position offset information that is dragged forward or backward.
  • the controlled user sends a request for obtaining the network media to the server corresponding to the network media address, and the request includes the play progress information and the play status information.
  • the server reads the playing progress information of the network media, and uses the current playing position identified by the playing progress information as a reference, and calculates a playing start point according to the positional offset information of the forward or backward drag included in the playing state information.
  • the content of the data frame subsequent to the new playback starting point in the network media is sent to the controlled user; the controlled user plays the corresponding content of the obtained network media according to the playing state information, that is, dragging forward or backward dragging and playing The content of the data frame following the new playback starting point in the network media.
  • the controlled user When the playing status information is fast forward/reverse playback, the controlled user sends a request for acquiring the network media to the server corresponding to the network media address, where the request includes the network media playing progress information and the playing status information.
  • the server reads the playing progress information of the network media, and uses the current playing position identified by the playing progress information in the network media as the starting point, and the data frame content after/before the current playing position is sent to the controlled user.
  • the controlled user plays the corresponding content of the obtained network media according to the playing state information, that is, the current playback position identified by the playback progress information in the fast forward/reverse playback network media as the starting point, and the data frame content after/before the current playing position.
  • the controlled user stops sending a request for obtaining the network media to the server corresponding to the network media address; the server corresponding to the network media address stops sending the network media content to the controlled user; The web media is paused at the information office.
  • the P2P function can also be used between the master user and the controlled user to achieve synchronous playback. That is, the master user and the controlled user periodically send their respective download progress information to the other party.
  • the download progress information refers to the progress information of downloading the network media from the network media address.
  • the user whose download progress is slow in the master user and the controlled user can request the subsequent content of the network media to the user with fast download progress; the user who downloads the fast progress sends the subsequent content of the downloaded network media to the user who downloads the progress of theft .
  • the master user and the controlled user When the play status information is paused, the master user and the controlled user also stop periodically sending their download progress information to the other party, and the user with fast download progress stops sending the subsequent content of the downloaded network media to Download slow progress users.
  • the server corresponding to the network media address is used in the present application, in actual applications, the network entity corresponding to the network media address is not limited to the server, for example, when the network media address is a P2P seed.
  • the network entity corresponding to the network media address may be the client where the master user or the controlled user is located, or may be the client peering with the client where the master user or the controlled user is located.
  • step 201 and step 202 are executed at least once.
  • step 201 and step 202 may be performed periodically, or step 201 and step 202 may be performed when the state of the controlled user changes.
  • the step 201 is performed, if the network media address currently played by the master user is the same as the network media address sent to the controlled user last time, the master user may no longer send the network media address to the controlled user, so that Reduce the transmission of redundant information.
  • any one of the master user and the controlled user may terminate the synchronous play of the network media, that is, the controlled user may terminate the synchronous play of the network media according to an instruction of the master user, or the master
  • the controlling user can terminate the synchronous playing of the network media actively or according to an instruction of the controlled user.
  • FIG. 3 is a flowchart of a method for implementing synchronous playback of network media in a second embodiment of the present invention.
  • This embodiment shows a process of continuously playing a certain network medium between two users, thereby realizing synchronous play, in which the controlled user B sends a request to join the synchronous play to the master user A.
  • the method flow chart is as follows:
  • Step 301 The master user A requests, acquires, and plays a certain network media in real time from the network media provider.
  • Step 303 The controlling user A sends the network address of the currently played network media (that is, the address of the network media on the network media provider) and the current playing progress information and the current playing state information to the controlled user B.
  • Step 304 The controlled user B requests the network media provider for the current playing content of the network media according to the network address of the network media and the current playing progress information, where the request includes current playing progress information of the network media.
  • the current play progress information is usually offset information of the network medium, and the offset information is an offset of the corresponding network medium.
  • the size of the network medium is 3 Mbytes, and the time corresponding to the network media playing to 1 Mbyte is 50 seconds. If the controlled user B joins at this time, the playback progress information sent by the controlling user A is The offset of the network media, that is, the location of the content corresponding to the network media at 50 seconds.
  • Step 305 The network media provider sends the current playing content of the network media to the controlled user B according to the current playing progress information of the network media.
  • the network media provider sequentially sends the network media to the controlled user B according to the playback progress information obtained in step 304 from the current playback progress of the network media.
  • the user A and the user B simultaneously listen to an MP3 song in the network as an example to describe the implementation process of the second embodiment of the present invention in detail.
  • Multiple sequential audio data frames in an MP3 file, sample rate and length between data frames It can be different, but regardless of the length of the data frame, the playback time corresponding to each data frame is 26ms, so each MP3 audio file is composed of several 26ms data frames, and any playback time corresponds to the relevant data. frame.
  • user A After user A obtains the network link address "http://192.168.0.l/music/words.mp3" of song S by searching, etc., user A uses the network music player to acquire and play the song S in real time according to the link address. .
  • User B sends a request to user A to join the synchronous listening to the song S; after accepting the request of the user B, the user A returns the network address "http: ⁇ 192.168.0. l/music/words.mp3" of the song S to the user B, and The user ⁇ currently listens to the playback progress information of the song S. Assume that the size of the song S is 3 Mbytes, and at this time, the user A listens to the data frame of 1 Mbyte, and the shell 'J "1M" is the playback progress information of the song S.
  • User B receives the network address and playback progress information of song S, and then goes to the network address.
  • “http://192.168.0. l/music/words.mp3” Sends the content request of song S, which carries the current playback progress information "1M” of song S.
  • user B can also set an end message in the content request, that is, requesting a data frame from the current playback progress information to the end information to the network address "http: ⁇ 192.168.0. l/music/words.mp3", where
  • the end information may be information corresponding to the end of the song S, or may be information corresponding to a certain number of data frames, such as information corresponding to 0.3M.
  • the network media provider's server 192.168.0.1 reads the file word.m P 3 from the server to the media content at the end information according to the received content request, and sends the media content to the user B. .
  • the user B After receiving the media content, the user B starts playing from the 1 Mbyte of the song S, and during the playing, the user B can automatically acquire the subsequent data frame of the song S from the server, and the player continues to play the song synchronously with the user A. S.
  • FIG. 4 is a flowchart of a method for implementing synchronous playback of network media in a third embodiment of the present invention.
  • This embodiment shows a process of continuously playing a certain network medium between two users, thereby realizing synchronous play, in which the master user A invites the controlled user B to join the synchronized play.
  • the method flow chart is as follows:
  • Step 401 The master user A requests, acquires, and plays a certain network media in real time from the network media provider.
  • Step 403 After receiving the invitation, the controlled user B returns the information of accepting the invitation to the controlling user A.
  • the controlled user B can also choose to return the information rejecting the invitation to the controlling user A, and the synchronous playing process ends.
  • Step 404 The controlled user B requests the network media provider for the current playing content of the network media according to the network address of the network media and the current playing progress information.
  • Step 405 The network media provider sends the current play content of the network media to the controlled user B according to the current play progress information of the network media.
  • the specific implementation process of the third embodiment of the present invention is similar to that of the second embodiment when the user A and the user B play the same MP3 songs in the network. The details are not described here. The only difference lies in the third implementation of the present invention.
  • User A invites User B to join the synchronized audiovisual.
  • FIG. 5 is a flowchart of a method for implementing synchronous playback of a network medium according to a fourth embodiment of the present invention.
  • the controlled user B obtains the network media content from the network media provider at a slower speed, affecting normal play, the network media is continuously played through the extended P2P function, thereby achieving synchronous play.
  • the method flow chart is as follows:
  • Step 501 The master user A requests, acquires, and plays a certain network media in real time from the network media provider.
  • Step 503 The master user A sends the network address and current play progress information of the currently played network media and the current play status information to the controlled user B.
  • Step 504 The controlled user B requests the network media provider for the current playing content of the network media according to the network address of the network media and the current playing progress information.
  • Step 505 The network media provider sends the current playing content of the network media to the controlled user B according to the current playing progress information of the network media.
  • Step 506 The master user A and the controlled user B periodically send their own download progress information to the other party, and the download progress information may also be referred to as a data update message.
  • the download progress here refers to the data frame of the network media that has been downloaded from the network media provider. In order to play smoothly, the downloaded data frame is always ahead of the currently played data frame.
  • Step 507 The controlled user B requests the master user A to download the subsequent network media content that is slower than the playback speed due to a network failure or the like according to the periodically exchanged data update message.
  • Step 508 The master user A sends the data frame corresponding to the downloaded network media content to the controlled user B in response to the request of the controlled user B.
  • the user A and the user B simultaneously listen to an MP3 song in the network as an example, and the implementation process of the fourth embodiment of the present invention is described in detail. In this implementation process, it is assumed that user B has a slower download progress than the current playback progress due to network failure or bandwidth problem, and user A's download rate is normal.
  • user A After user A obtains the network link address "http://192.168.0.l/music/words.mp3" of song S by searching, etc., user A uses the network music player to acquire and play the song S in real time according to the link address. .
  • User B sends a request to User A to join the simultaneous listening to the song S.
  • User A returns the network address of song S to user B after accepting user B's request. "http://192.168.0.l/music/words.mp3" and the playback progress information of user A currently listening to song S. Assuming that the size of the song S is 3 Mbytes, and at this time, the user A listens to the data frame of 1 Mbyte, then 1M is the playback progress information of the song S.
  • the user B After receiving the network address and playback progress information of the song S, the user B sends a content request of the song S to the network address "http://192.168.0.l/music/words.mp3", and the content request carries the song S.
  • the current play progress information "1M” and the end information (the end information here may be 3M corresponding to the end of the song S, or may be a batch download based on a certain number of data frames, for example, every 0.3M request download).
  • the network media provider's server 192.168.0.1 reads the file word.m P 3 from the server to the end of the data content according to the received content request, and sends the data content to user B. .
  • user B After user B receives the data content, it starts playing from 1 Mbyte of song S, and during playback, the user
  • User A and User B periodically send download progress information for song S to the other party as a data update message for the song S playback.
  • User B's progress of downloading song S from the server is slower than the progress of playing song S due to network failure with server 192.168.0.1, so user B requests user A for subsequent data frames required to play song S according to the data update message. It is assumed that the requested data frame corresponds to the data content of 1.6M-2.0M bytes of the song S.
  • FIG. 6 is a flowchart of a method for implementing synchronous playback of network media in a fifth embodiment of the present invention.
  • This embodiment shows a process of suspending playback of the network media after a certain user continuously plays a certain network medium for a period of time, thereby realizing synchronous playback.
  • the process is as follows:
  • Step 601 When the master user A pauses the currently playing network media, simultaneously sends the address of the network media, the play progress information, and the pause state information to the controlled user B.
  • Step 602 After receiving the information sent by the master user A, the controlled user B interrupts the network media provider to request the subsequent content of the network media.
  • the controlled user B stops the request to the network media provider and stops the content with the network user. Exchange subsequent network media content data frames.
  • Step 603 The controlled user B pauses the playing of the network media content, and waits for the controlling user A to send subsequent playing state information. Specifically, after the main control user A pauses playing the network media content for a period of time, the play status information that can be sent to the user B includes the status information of continuing to play, or the status information of stopping the play, or the status information of the forward drag play. , or drag the playback status information, etc. backwards.
  • the controlled user B may also suspend the playback of the current network medium first, and send the status information of the stop synchronization to the master user A.
  • the controlled user B first stops playing the current network media, it indicates that it actively exits the current synchronized play state, and the controlled user B sends the state information of stopping the synchronization to the master user A, and the master user A no longer The controlled user B sends the subsequent play status information, and if the P2P function is extended between the two users, the master user A also stops sending the data update message of the network media to the controlled user B at the same time.
  • the user A and the user B simultaneously listen to an MP3 song in the network as an example, and the implementation process of the fifth embodiment is described in detail.
  • the network address of the song S is "http: ⁇ 192.168.0.1/music/words. Mp3" , the current playback progress information of the song S (assuming that the user A currently listens to the 2 Mbyte content of the song S, the information "2M" is used as the playback progress information), and the current playback status information of the song S (user A current Pause the song S, so the playback status information is to stop playing);
  • the user B After receiving the control information sent by the user A, the user B knows from the play progress information and the play status information of the song S that the user A pauses the play at the 2M content of the song S, so the user B no longer provides the network media provider.
  • the server 192.168.0.1 requests the subsequent content of the song S; if the P2P function is extended between the user A and the user B, the user B stops the exchange of the user A in addition to the request to the server 192.168.0.1 for the subsequent content of the song S.
  • User A and User B simultaneously pause the playing of song S, while User B waits for User A to send subsequent playback status information of song S, including continuing to play song S, or stopping playing song S, or dragging forward playing song S, or backward Drag to play the song S.
  • FIG. 7 is a flowchart of a method for implementing synchronous playback of a network medium according to a sixth embodiment of the present invention.
  • This embodiment shows a process in which three users continuously play a certain network media through the P2P function, thereby realizing synchronous play between three users, wherein the controlled user C obtains the network media content from the network media provider at a slower speed.
  • the process is as follows: Step 701: The master user A requests, retrieves, and plays a certain network media in real time from the network media provider.
  • Step 702 The controlled user B actively sends a request for joining the synchronous play to the master user A. This step may also be that the controlling user A invites the controlled user B to join the synchronized play.
  • Step 703 The master user A sets the network address and current play progress information of the currently played network media and the current The playback status information is sent to the controlled user B.
  • Step 704 The controlled user B requests the network media provider for the current playing content of the network media according to the network address of the network media and the current playing progress information.
  • Step 705 The network media provider sends the current playing content of the network media to the controlled user B according to the current playing progress information of the network media.
  • Step 706 The master user A and the controlled user B periodically send the download progress information to the other party, and use the information as a data update message.
  • Step 707 The controlled user B requests the master user A to download the subsequent network media content that is slower than the playback speed due to a network failure or the like according to the periodically exchanged data update message.
  • Step 708 The master user A sends the data frame corresponding to the downloaded network media content to the controlled user B in response to the request of the controlled user B.
  • Step 709 The controlled user C actively sends a request to the master user A to join the synchronous play. This step may also be that the host user A invites the controlled user C to join the synchronized play.
  • Step 710 The controlling user A sends the network address of the currently played network media, the current playing progress information, the network address and port of the currently playing master user A and the controlled user B to the controlled user C.
  • Step 711 The master user A, the controlled user B, and the controlled user C periodically send their own download progress information to the other two parties, and use the information as a data update message.
  • Step 712 The controlled user C requests the master user A and the controlled user B to download the subsequent network media content that is slower than the playback speed due to a network failure or the like according to the periodically exchanged data update message.
  • Step 713 The master user A and the controlled user B send the data frame corresponding to the downloaded network media content to the controlled user C in response to the request of the controlled user C.
  • user A After user A obtains the network link address "http://192.168.0.l/music/words.mp3" of song S by searching, etc., user A uses the network music player to acquire and play the song S in real time according to the link address. ;
  • User B sends a request to User A to join the simultaneous listening to the song S.
  • User A returns the network address of song S to user B after accepting user B's request. "http://192.168.0.l/music/words.mp3" , and the playback progress information of the user A currently listening to the song S, assuming that the size of the song S is 3 Mbytes, and at this time, the user A listens to 1 Mbyte. At the data frame, 1M is the playback progress information of the song S.
  • the user B After receiving the network address and playback progress information of the song S, the user B sends a content request of the song S to the network address "http://192.168.0.l/music/words.mp3", and the content request carries the song S.
  • the current progress information "1M” and the end information are played.
  • the network media provider's server 192.168.0.1 reads the file words.mp3 from 1Mbytes to the end information according to the received content request, and sends the data content to user B.
  • User B After receiving the data content, User B starts playing from 1 Mbyte of song S, and during playback, User B can automatically acquire subsequent data frames of the song S from the server.
  • the user A and the user B periodically transmit the play progress information, the play status information, and the download progress information of the song S to the other party as the data update message played by the song S.
  • User B's progress of downloading song S from the server is slower than the progress of playing song S due to network failure with server 192.168.0.1, so user B requests user A for subsequent data frames required to play song S according to the data update message. , assuming that the requested data frame corresponds to 1.5M-2.0M bytes of data content of the song S.
  • the user A After the user C knows the current listening state of the user A, the user A sends a request to join the synchronous listening to the song S. User A returns the network address of song S to user C after accepting user C's request.
  • the user ⁇ currently listens to the playback progress information of the song S, assuming that the user A listens to the 1.5 Mbyte data frame at this time, then 1.5 M is
  • the playback progress information of the song S also returns the network address and port information of the user A and the user B to the user C.
  • the playback progress information, the playback status information, and the download progress information of the song S are periodically transmitted between the user A, the user B, and the user C as the data update message played by the song S.
  • the progress of downloading the song S from the server by the user C due to the network failure of the server 192.168.0.1 is slower than the progress of playing the song S, so the user C downloads the progress to the user A and the user B faster than the user according to the data update message.
  • the user requests a subsequent data frame required for playing the song S, assuming that the requested data frame corresponds to 2.0M-2.5M bytes of data content of the song S.
  • the data content of 2.0M-2.5M bytes is sent to the user C, thereby ensuring the realization of the user A and the user C network failure.
  • User B listens to song S synchronously.
  • the controlled user receives the respective download progress information respectively sent by other users who join the synchronous play. And the controlled user sends the subsequent content of the downloaded network media to other users whose download progress is slower according to the download progress information of other users who join the synchronous play; or requests the network media from other users whose download progress is faster.
  • the controlled users will also send their own download progress information to other users who join the synchronous play.
  • Other users who join synchronous play here include the master user (such as user A) or / and other controlled users of the master user (such as user C).
  • FIG. 8 is a flowchart of a method for implementing synchronous playback of a network medium according to a seventh embodiment of the present invention.
  • This embodiment shows a process in which a closed P2P network is used between three users to continuously play a certain network medium and then pause the playback of the network medium, thereby realizing synchronous playback.
  • the process is as follows:
  • Step 801 When the master user A pauses the currently playing network media, the host user B and the controlled user C simultaneously send the network media address, the play progress information, and the pause state information.
  • Step 802 After receiving the information sent by the master user A, the controlled user B and the controlled user C interrupt the request for the subsequent content of the network media to the network media provider, and stop the data update message of the network media sent between the users. .
  • Step 803 The controlled user B and the controlled user C pause the playing of the network media content, and wait for the controlling user A to send subsequent playing state information.
  • the play status information that can be sent to the user B and the user C includes status information to continue playing, or status information to stop playing, or drag forward to play. Status information, or drag status information for playback backwards, etc.
  • the playback of the current network medium can be first suspended by any one of the controlled user B or the controlled user C, and the related control information can be sent to other users.
  • the controlled user B or the controlled user C first stops the playing of the current network media, it indicates that it actively exits the current synchronized playing state, and the controlled user sends the state information of stopping the synchronization to the controlling user A, the master control User A no longer sends subsequent playback status information to the controlled user.
  • the user A, the user B, and the user C simultaneously listen to an MP3 song in the network as an example, and the implementation process of the seventh embodiment is described in detail.
  • Network address of song S "http://192.168.0. l/music/words.mp3"
  • the current playback progress information of the song S (assuming that the user A currently listens to the 2 Mbyte content of the song S, the information "2M” is used as the playback progress. Information)
  • the current playing status information of the song S (user A currently pauses playing the song S, so the playing status information is paused);
  • the user B and the user C After receiving the control information sent by the user A, the user B and the user C know from the playback progress information of the song S that the user A pauses playback at the 2M content of the song S, so the user B and the user C no longer serve the network media.
  • the server 192.168.0.1 of the provider requests the subsequent content of the song S, and simultaneously stops the data update message of the data frame after exchanging the 2 Mbyte content of the song S with each other;
  • User A, User B, and User C simultaneously pause to play the song S, while User B and User C wait for User A to send subsequent playback status information of Song S, including continuing to play the song S, or stop playing the song S, or dragging forward. Song s, or drag backward to play song s.
  • FIG. 9 is a system block diagram of implementing synchronous playback of network media in an eighth embodiment of the present invention.
  • the system includes a network media server 910, a master media player (ie, a host user) 920, and a controlled media player (ie, a controlled user) 930.
  • a master media player ie, a host user
  • a controlled media player ie, a controlled user
  • the network media server 910 is used to store the synchronously played network media. Although it is referred to as a "network media server", in actual implementation, the network entity that stores the network media is not limited to the server.
  • the master media player 920 is configured to request the network media from the network media server 910 and play the network media; and at the same time, send the currently played network media address, the play progress information, and the controlled media player 930 added to the synchronous play. Play status information.
  • the controlled media player 930 is configured to obtain, according to the network media address and the playing progress information received from the master media player 920, the corresponding content of the network media currently played by the master media player 920 from the network media server 910. And performing the operation indicated by the playing state information, and realizing playing the network media synchronously with the master media player.
  • FIG. 10 is a structural block diagram of a network media player in a ninth embodiment of the present invention.
  • the network media player is located on the host user client and can also be referred to as the master media player.
  • the network media player includes a transmission control information unit S10.
  • the network media player When the network media player supports the P2P function, the network media player further includes a send update message unit S20, a send network media unit S30, and a request network media unit S40.
  • the sending control information unit S10 is configured to send, to the controlled media player, the currently played network media address, the playing progress information, and the playing state information, where the network media address is the address of the network media, and the playing progress information is the current playing position of the network media.
  • the information, the playing status information is the current playing status information of the network media.
  • the sending update message unit S20 is configured to receive respective download progress information sent by other media players that participate in synchronous play, where the download progress information refers to progress information of downloading the network media from the network media address.
  • the sending network media unit S30 is configured to send download progress information of other network media players received according to the sending update message unit S20 to other network media when the download progress of the network media player is greater than the download progress of other network media players participating in the synchronous play.
  • the player sends the downloaded network media.
  • the requesting network media unit S40 is configured to request the other network media players according to the download progress information of the other network media players received by the sending update message unit S20 when the download progress of the network media player is less than the other network media players that are added to the synchronous play.
  • the currently playing network media can also be used to send download progress information to other media players that participate in synchronous play, so that the update message unit of other media players can be based on the received download progress information of the local media player.
  • FIG. 11 is a structural block diagram of a network media player in a tenth embodiment of the present invention.
  • the network media player is located on the user side of the controlled user and can also be referred to as a controlled media player.
  • the network media player includes a reception control information unit S50 and an execution control information unit S60.
  • the network media player supports the P2P function, the network media player further includes a send update message unit S70, a send network media unit S80, and a request network media unit S90.
  • the receiving control information unit S50 is configured to receive a network media address, a play progress information, and a play status information currently played by the master media player sent by the master media player, where the network media address is an address of the network media, and the play progress information For the location information currently played by the network media, the play status information is the current play status information of the network media.
  • the execution control information unit S60 is configured to obtain, according to at least the network media address and the playing progress information received by the receiving control information unit S50, the corresponding content of the network media currently played by the master media player from the network media address, and execute the playing state information. The indicated operation enables the network media to be played in synchronization with the master media player.
  • the sending update message unit S70 is configured to send download progress information to other media players that participate in synchronous play, and receive respective download progress information sent by other media players added to the synchronized play, where the download progress information refers to downloading the network from the network media address. Media progress information.
  • the sending network media unit S80 is configured to send the download progress information of the other network media players received by the sending update message unit S70 to other network media when the download progress of the network media player is greater than the download progress of other network media players participating in the synchronous play. The player sends the downloaded network media.
  • the requesting network media unit S90 is configured to request the other network media players according to the download progress information of the other network media players received by the sending update message unit S70 when the download progress of the network media player is less than the other network media players that are added to the synchronous play.
  • the currently playing network media is configured to request the other network media players according to the download progress information of the other network media players received by the sending update message unit S70 when the download progress of the network media player is less than the other network media players that are added to the synchronous play. The currently playing network media.
  • the execution control information unit S60 includes a transmission request subunit S61, a reception network medium subunit S62, and an operation execution subunit.
  • the sending request subunit S61 is configured to send a request for obtaining the network medium to the network media address.
  • the receiving network media sub-unit S62 is configured to receive corresponding content of the network media from the network media address.
  • the operation execution subunit performs an operation of indicating the playback status information on the corresponding content of the network medium received by the network media subunit S62.
  • the network media player can be divided into a controlled media player and a master media player.
  • a network media player can include both a controlled media player and a master media player.
  • the method for realizing synchronous playback of network media in the embodiment of the present invention is applicable.
  • the master user sends the network media address, the play progress information, and the play status information to the controlled user, and the controlled user performs the continuous play, pause play, and the like indicated by the play status information according to the network media address and the play progress information, so that the user It can flexibly play online media synchronously to achieve good collaborative entertainment.
  • the P2P function is extended between users who play synchronously, the smoothness of synchronous playback is improved, and the system performance is correspondingly enhanced.
  • the network media content acquired by the controlled user is the same as the master user, that is, all from the network media address, so that the quality of the media signal obtained by the controlled user is The same is true for the master user.
  • the master user outputs the currently played network media content to the controlled user, and the controlled user obtains a lower quality of the media signal than the master user, and may also be in the media signal. Mixed with noise. It can be seen that the quality of the network media played by the controlled user in the embodiment of the present invention is higher than that of the prior art, so that the user experience of the controlled user during synchronous playback will be higher than that of the prior art, thereby achieving a good coordinated entertainment effect.
  • the access network bandwidth of the master user does not become a major factor affecting the audiovisual effect.

Abstract

L'invention concerne un procédé pour lire de manière synchrone des fichiers multimédia réseau qui consiste : à recevoir une adresse multimédia réseau; à lire des informations de programmation et à lire des informations d'état en provenance d'un dispositif utilisateur de commande principal; en fonction au moins des informations de programmation de lecture, à obtenir à l'adresse multimédia réseau le contenu correspondant que le dispositif utilisateur de commande principal est en train de lire; et à lire le contenu correspondant en fonction des informations d'état de lecture. La présente invention concerne également un lecteur multimédia réseau. Le procédé et le lecteur multimédia réseau de la présente invention permettent à des dispositifs utilisateurs commandés de lire des fichiers multimédia réseau de manière synchrone au moyen du dispositif utilisateur de commande principal.
PCT/CN2008/070997 2007-05-18 2008-05-16 Procédé et lecteur multimédia réseau pour lire des fichiers multimédia réseau de manière synchrone WO2008141577A1 (fr)

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CN101072359A (zh) * 2007-05-18 2007-11-14 腾讯科技（深圳）有限公司 实现网络媒体同步视听的方法、系统及用户端

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