WO2008141577A1 - Method, and network media player for playing network media synchronously - Google Patents

Method, and network media player for playing network media synchronously 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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WO
WIPO (PCT)
Prior art keywords
network media
play
user
playing
information
Prior art date
Application number
PCT/CN2008/070997
Other languages
French (fr)
Chinese (zh)
Inventor
Peng Hu
Xinliang Wang
Jun Zhou
Original Assignee
Tencent Technology (Shenzhen) Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority to CN200710107962.7 priority Critical
Priority to CN 200710107962 priority patent/CN101072359A/en
Application filed by Tencent Technology (Shenzhen) Company Limited filed Critical Tencent Technology (Shenzhen) Company Limited
Publication of WO2008141577A1 publication Critical patent/WO2008141577A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/24Systems for the transmission of television signals using pulse code modulation
    • H04N7/52Systems 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/4302Content synchronization processes, e.g. decoder synchronization
    • H04N21/4307Synchronizing display of multiple content streams, e.g. synchronisation of audio and video output or enabling or disabling interactive icons for a given period of time
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network 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 
    • H04N21/63Control 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
    • H04N21/633Control signals issued by server directed to the network components or client
    • H04N21/6332Control signals issued by server directed to the network components or client directed to client
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network 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 
    • H04N21/63Control 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
    • H04N21/64Addressing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network 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 
    • H04N21/63Control 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
    • H04N21/647Control 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
    • H04N21/64746Control signals issued by the network directed to the server or the client
    • H04N21/64753Control signals issued by the network directed to the server or the client directed to the client
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network 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 
    • H04N21/65Transmission of management data between client and server
    • H04N21/654Transmission by server directed to the client
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network 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 
    • H04N21/65Transmission of management data between client and server
    • H04N21/654Transmission by server directed to the client
    • H04N21/6543Transmission by server directed to the client for forcing some client operations, e.g. recording
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network 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 
    • H04N21/65Transmission of management data between client and server
    • H04N21/658Transmission by the client directed to the server
    • H04N21/6587Control parameters, e.g. trick play commands, viewpoint selection

Abstract

A method for playing network media synchronously includes : receiving a network media address, playing schedule information and playing status information from a main controlling user; based on at least the playing schedule information, getting the corresponding content that the main controlling user is playing from the network media address; and playing the corresponding content according to the playing status information. A network media player is also disclosed in the present invention. By using the method and the network media player provided in the present invention, controlled users can play network media synchronously with the main controlling user.

Description

 Network media synchronous playing method and network media player

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. There are various media encoding formats, such as MP3, WMA, RM, ASF, etc. Both support the network media player to play while playing and playing. The use of a network media player not only facilitates user operations, but also saves local resources. When playing network media using a network media player, the network address may be a uniform resource location URL address, or may be a peer-to-peer network technology P2P network seed. Taking a network music player as an example, 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.

 With the popularity of network media players, a new user demand has emerged, that is, users want to be able to simultaneously view and listen to the same network media with other users, such as friends. That is, when 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. Summary of the invention

 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:

 Receiving a network media address, playback progress information, and play status information from the master user;

 Obtaining, according to the playback progress information, the corresponding content of the network media currently played by the master user from the network media address;

 And playing the obtained corresponding content of the network media according to the playing state information.

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.

 A network media player provided by an embodiment of the present invention includes:

 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. The progress information, the operation indicated by the playing status information, such as continuous playing and pause playing, thereby realizing synchronous play of the master user and the controlled user. 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. As shown in FIG. 1 , 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.

 It can be seen that 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.

 In the method for realizing synchronous viewing of network media provided by the embodiment of the present invention, 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. Specifically, 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. In some cases, 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.

 When the playing status information is continuous playing, 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.

 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. Then, 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.

 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.

 When the playing status information is paused, 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. Here, the download progress information refers to the progress information of downloading the network media from the network media address. In this way, 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 .

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. It is to be noted that, although 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.

 In addition, it is worth noting that in the synchronized play of the master user and the controlled user, step 201 and step 202 are executed at least once. In an actual application, 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. When 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.

 In an embodiment of the present invention, 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. As shown in Figure 3, 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 302: The controlled user B actively sends a request to join the synchronous user to join the synchronous play.

 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.

 Specifically, 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. For example, 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.

 Specifically, 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.

In the following, 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.

 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 Α 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. Here, 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. .

 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. As shown in Figure 4, 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 402: The master user A invites the controlled user B to join the synchronous play, and sends the network address of the currently played network media, the current play progress information, and the current play status information to the controlled user B.

 Step 403: After receiving the invitation, the controlled user B returns the information of accepting the invitation to the controlling user A. Here, 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. In the example, 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. In this embodiment, when 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. As shown in Figure 5, 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 502: The controlled user B actively sends a request for joining the synchronous play to the master user A. Alternatively, the master user A invites the controlled user B to join the synchronized play.

 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.

 Still, 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.

 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.

 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. .

 After user B receives the data content, it starts playing from 1 Mbyte of song S, and during playback, the user

B can automatically obtain subsequent data frames of the song S from the server.

 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.

 User A, because the download progress is good, after receiving the request from user B, the data content of the downloaded song S of 1.6M-2.0M bytes is sent to user B, thereby ensuring the realization of the user B network failure. User A listens to the song S synchronously.

 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. As shown in Figure 6, 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.

 In particular, when the P2P function is extended between the master user A and the controlled user B, 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.

 In the fifth embodiment, 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.

 In particular, if 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.

 Still, 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.

 After user A and user B continue to listen to the song for a period of time S, the user A pauses to play the song S, and simultaneously sends the following control information to the user B: 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);

 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. An update message of the data frame after the 2 Mbyte 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. . As shown in FIG. 7, 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.

 The steps and the process for the three or more users to continuously play a certain network media, so as to realize the synchronous play, are similar to the above-mentioned Embodiment 6, and are not described herein again.

 Taking the user A, the user B, and the user C to simultaneously listen to an MP3 song in the network as an example, the implementation process of the sixth embodiment will be described in detail. In this implementation, it is assumed that user C is slower than the current playback progress due to network failure or bandwidth issues.

 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.

 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.

 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.

 User A, because the download progress is good, after receiving the request from user B, the data content of the downloaded song S of 1.5M-2.0M bytes is sent to user B, thereby ensuring the realization of the user B network failure. User A listens to the song S synchronously.

 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.

"http://192.168.0. l/music/words.mp3" , the user Α 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.

 User A will download the song S after receiving the request from user C because the download progress is good.

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.

 It can be seen that when the P2P function is extended between the controlled user and other users who join the synchronous play, 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. Follow-up content. Of course, in the actual application, 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. As shown in Figure 8, 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.

 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 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.

 In the seventh embodiment, 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.

 In particular, if 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 steps and the process of the synchronous play by the three or more users to suspend the playback of a certain network media are similar to the above-mentioned Embodiment 7, and are not described herein again.

 Still, 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.

 User A, User B, and User C paused to play the song after continuously listening to the song for a period of S.

S, send the following control information to User B and User C at the same time: 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), and the current playing status information of the song S (user A currently pauses playing the song S, so the playing status information is paused);

 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. As shown in FIG. 9, 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.

 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. As shown in FIG. 10, the network media player includes a transmission control information unit S10. 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. Of course, the sending update message unit S20 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. As shown in FIG. 11, the network media player includes a reception control information unit S50 and an execution control information unit S60. When 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.

 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.

 Although logically, the network media player can be divided into a controlled media player and a master media player. In practical applications, a network media player can include both a controlled media player and a master media player. Features.

According to the embodiment provided by the present invention, 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. And when the P2P function is extended between users who play synchronously, the smoothness of synchronous playback is improved, and the system performance is correspondingly enhanced.

 With the network media synchronous playing method and the media player in the embodiment of the present invention, 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. In the prior art, 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. In addition, in the embodiment of the present invention, when a user synchronizes with a plurality of other users, since all users obtain network media from the network media address, and the general network media address is located on the backbone network, compared to the existing In the embodiment of the present invention, the access network bandwidth of the master user does not become a major factor affecting the audiovisual effect.

 The above are only the preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Claim
 A method for realizing synchronous playback of a network medium, comprising:
 Receiving a network media address, playback progress information, and play status information from the master user;
 Obtaining, according to the playback progress information, the corresponding content of the network media currently played by the master user from the network media address;
 And playing the obtained corresponding content of the network media according to the playing state information.
 The method according to claim 1, wherein the playing state information is continuous playing, and the at least the master user is currently playing from the network media address according to the playing progress information. The corresponding content of the network media includes: sending a request for acquiring the network media to the network media address, the request for acquiring the network media includes the play progress information; and receiving, by the network media address, the play progress of the network media The data frame content of the information identification after the current playback position;
 The playing the corresponding content of the network media according to the playing state information comprises: continuously playing the data frame content after the current playing position identified by the playing progress information in the obtained network media.
 3. The method according to claim 1, wherein the playing state information comprises: dragging forward and dragging the position offset information forward, or dragging backward and backward dragging Position offset information;
 And obtaining, according to the playback progress information, the corresponding content of the network media that is currently played by the master user from the network media address, including: sending, to the network media address, a request for acquiring a network media, where the request includes The playback progress information and the playback status information; receiving, from the network media address, a data frame content subsequent to a new playback start point in the network media; wherein the new playback start point is identified by the playback progress information The current play position is a reference, and the play start point calculated according to the position offset information of the forward or backward drag included in the play status information; the corresponding content of the network media obtained by playing according to the play status information includes: The front dragging play or backward dragging plays the data frame content subsequent to the new play starting point in the network media.
 The method according to claim 1, wherein the play status information is fast forward/reverse play; and the master control is obtained from the network media address according to the play progress information. Corresponding content of the network media currently played by the user includes: sending a request for acquiring the network media to the network media address, where the request includes the play progress information and the play state information; and receiving the network media from the network media address Taking the current playback position identified by the playback progress information as a starting point, and the data frame content after/before the current playback position;
The corresponding content of the network media acquired according to the playing state information includes: fast forward/rewind playback: the current playing position identified by the playing progress information in the network media is used as a starting point, and the current playing position is after/before Data frame content.
The method according to claim 1, wherein the playing state information is paused playing, and the at least the master user is currently playing from the network media address according to the playing progress information. Corresponding content of the network media includes: stopping sending a request for acquiring the network media to the network media address;
 The playing the corresponding content of the network media obtained according to the playing state information comprises: stopping playing the network media from the location information indicated by the playing progress information.
 6. The method according to claim 1, further comprising:
 Receiving respective download progress information respectively sent by other users who join the synchronous play;
 And sending, according to the download progress information of the other users that are added to the synchronous play, the downloaded content of the network media to the other users that are synchronized to the playback progress, or the downloading progress is faster than the downloading progress The other users joining the synchronized play request subsequent content of the network media.
 7. The method according to claim 6, further comprising:
 The download progress information of the user is sent to the other users who are added to the synchronized play.
 8. The method according to claim 1, further comprising:
 Stopping receiving respective download progress information sent by other users joining the synchronized play when the play status information is pause play;
 Stopping sending subsequent content of the downloaded network media to other users who are synchronized to play faster than the download progress;
 Stop requesting subsequent content of the network media from the other users joining the synchronized play that are faster than the download progress.
9. The method of claim 6, 7 or 8, wherein the other users joining the synchronized play include the master user or/and other controlled users of the master user.
 10. The method according to claim 1, further comprising:
 Sending a request to join the synchronous play to the host user before receiving the network media address, play progress information, and play status information from the master user; or
 The host user is invited to join the synchronous play invitation before receiving the network media address, the play progress information, and the play status information from the master user.
 The method according to claim 1, further comprising:
 The synchronous playback of the network media is initiated or in accordance with an instruction of the master user.
 12. A network media player, comprising:
 a first unit, configured to receive a network media address, playback progress information, and play status information from the master media player;
a second unit, configured to acquire the master media from the network media address according to at least the play progress information The corresponding content of the network media currently played by the player, and playing the corresponding content of the obtained network media according to the playing state information.
 The network media player according to claim 12, further comprising:
 a third unit, configured to receive respective download progress information sent by other media players that participate in synchronous play; and a fourth unit, configured to: when the download progress of the user is greater than the download progress of other network media players added to the synchronous play, Other network media players send downloaded network media;
 The fifth unit is configured to request the currently played network media from other network media players when the download progress of the user is less than the download progress of other network media players participating in the synchronous play.
 The network media player according to claim 12 or 13, further comprising: a sixth unit, configured to send the currently played network media address, play progress information, and play status information to the controlled media player. .
 The network media player according to claim 12, 13 or 14, wherein the second unit comprises:
 a first subunit, configured to send, to the network media address, a request for acquiring the network media, where the request includes at least playback progress information of the network media;
 a second subunit, configured to receive corresponding content of the network media from the network media address;
 The third subunit plays the corresponding content of the network media acquired by the second subunit according to the playing state information.
16. A network media player, comprising:
 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 player according to claim 16, further comprising:
 a second unit, configured to receive respective download progress information sent by other media players that participate in synchronous play; and a third unit, configured to: when the download progress of the user is greater than the download progress of other network media players added to the synchronous play, Other network media players send downloaded network media;
 The fourth unit is configured to request the currently played network media from other network media players when the download progress of the user is less than the download progress of other network media players participating in the synchronous play.
PCT/CN2008/070997 2007-05-18 2008-05-16 Method, and network media player for playing network media synchronously WO2008141577A1 (en)

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