WO2009076847A1

WO2009076847A1 - A method, a device and a system for playing video

Info

Publication number: WO2009076847A1
Application number: PCT/CN2008/073296
Authority: WO
Inventors: Kai Wen
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2007-12-04
Filing date: 2008-12-02
Publication date: 2009-06-25
Also published as: CN101184194B; CN101184194A

Abstract

A method, a device and a system for playing video, wherein, the method includes: after triggering the video service, the network side device confirms the current talk state; when the network side device confirms that the current talk state satisfies the video playing condition, it proceeds the media negotiation with a terminal; after the negotiation succeeds, it plays the video to the terminal; wherein, the network side device is the network side device which provides the video service for the local side terminal. The device includes: a talk state confirming unit for confirming the current talk state after triggering the video service; a judging unit for judging whether the current talk state satisfies the video playing condition and reporting the judging result to the media negotiating unit; a media negotiating unit for proceeding the media negotiation with a terminal when it knows that the current talk state satisfies the video playing condition; a video service playing unit for playing the video to the terminal after confirming that the media negotiating unit succeeds to proceed the media negotiation.

Description

Method, device and system for playing video

The present application claims priority to Chinese Patent Application No. 200710193852.7, entitled "Method, Apparatus and System for Playing Video", which is filed on Dec. 4, 2007, the entire contents of which is incorporated herein by reference. in.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, device, and system for playing video. Background technique

In the current network, there is an initial SIP protocol terminal with video playback capability. When such a terminal does not make a video call, its screen is idle, and the network operator can use the idle resource to play to the user. Video media content including advertisements, etc. For example, in an advertisement service that plays advertisement media content, an operator can play an advertisement on a user terminal before a user makes a video call or an audio call, thereby creating greater value for the telecommunications backward value chain.

Still taking the advertisement service as an example, in the prior art, the network device needs to inform the terminal of the advertisement address, and the terminal automatically acquires the advertisement video media stream according to the address, thereby realizing playing the advertisement on the terminal. Although the technology can play video on the terminal, the technology needs to be implemented mainly by the terminal, and the corresponding terminal needs corresponding processing function. Since the number of terminals in the network is large, it is obviously unrealistic to require all terminals to have the above-mentioned processing functions. Therefore, the prior art relies too much on the terminal, which may affect the scalability of the advertisement service, and is not conducive to the rapid promotion of the advertisement service. Similarly, for other types of video services, there are also problems similar to the implementation of the above advertising services.

Summary of the invention

The purpose of the embodiments of the present invention is to provide a method, a device, and a system for playing a video, so as to implement video playback and video playback control through a network side device, thereby avoiding excessive dependence on the terminal and improving the video service. Scalability.

To achieve the above objective, the embodiments of the present invention provide the following technical solutions:

A method of playing a video, the method comprising:

After the video service is triggered, the network side device determines the current call state.

When the network side device determines that the current call state meets the video playing condition, performs media negotiation with the terminal, and after the negotiation succeeds, the video is played to the terminal; wherein the network side device is provided by the terminal of the current side. The network side device of the video service. A device for playing video, the device comprising:

a call state determining unit, configured to determine a current call state after the video service is triggered; the determining unit, configured to determine whether the current call state meets a video playing condition, and notify the media negotiation unit of the determination result;

a media negotiating unit, configured to perform media negotiation with the terminal when it is known that the current call state meets a video playing condition;

And a video service playing unit, configured to play a video to the terminal after determining that the media negotiation unit performs the media negotiation successfully.

A system for playing video, the system comprising a video service server and a SIP server, wherein: the video service server is configured to: after triggering a video service, determine a current call state, and satisfy a video playing condition in the determined call state When the media negotiation is performed with the terminal, and after the negotiation is successful, the video is played to the terminal;

The SIP server is configured to: perform registration and triggering of a video service, and perform message routing when the video service server performs media negotiation with the terminal.

It can be seen that the method, the device and the system provided by the embodiments of the present invention can perform video playback and video playback mainly by using the network side device, thereby reducing the dependence on the terminal and facilitating the service scalability. The effective integration with other services is enhanced, and the efficiency of the video service is improved. In addition, in the embodiment of the present invention, since the network side device is mainly used for video playback, only a small modification is required for the terminal, thereby The embodiments of the present invention are applicable to all types of terminals, which is beneficial to the rapid realization and promotion of video services.

In addition, the video service provided by the embodiment of the present invention, in particular, the advertisement service, enables the user to enjoy the discount on the call charge by watching the video. For the operator, the video service can be charged from the video provider through the video service. Costs, which increase their revenue; for video providers, they can get the corresponding business benefits by publishing videos.

DRAWINGS

1 is a schematic diagram of a video service network used in an embodiment of the present invention;

2 is a flowchart of playing an advertisement video during a call establishment process according to an embodiment of the present invention; FIG. 3 is a flowchart of playing an advertisement video during a call establishment process according to another embodiment of the present invention; FIG. 4 is an implementation of the present invention; In the example, a flow chart for playing an advertisement video after the call is established; FIG. 5 is a flowchart of implementing video playback control according to an embodiment of the present invention; FIG.

FIG. 5-1 is a flowchart of implementing stop video playback according to an embodiment of the present invention;

6 is a schematic diagram of an apparatus for playing a video according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a system for playing video according to an embodiment of the present invention.

detailed description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In order to be able to more clearly describe the method provided by the embodiment of the present invention, the following first, the network structure based on the implementation of the method will be described. The embodiment of the present invention implements a video service by using the video service network shown in FIG. 1. The network includes a video service management system 101 and a video service execution system 102, where:

The video service management system 101 is configured to manage video services, and the system specifically includes: a portal, a video service policy management unit, and a video content management unit, where:

The portal is configured to provide an operation interface for the user to set the video service policy and upload the video content; the portal may further provide an interface to the operator operator, so that the operator uses the interface to audit the video content and Manage video business strategies;

The video service policy management unit is used to implement management functions such as setting, deleting, and modifying a video service policy. The specific video service policies are various. Taking the advertisement service as an example, the advertisement policy may be: time period and/or call. The stage specifies the advertisement video file to be played, plays the advertisement video file according to the user group to which the current user belongs, and plays the advertisement video file according to the user's preference;

The video content management unit is configured to: receive and save the uploaded video file, review the video file, deliver the video file, and delete and query the video file.

The video service execution system 102 is configured to specifically execute a video service, and the system includes: a video service server, a media resource server (MRS), and a SIP server, where:

The video service server is responsible for the execution of specific video service logic;

The MRS is controlled by the video service server as a media resource component. In the following description, for the convenience of description, the function of the MRS is integrated into the video service server;

The SIP server is configured to: perform registration of the user, triggering of the user video service, and SIP message routing, and the SIP server and the video service server may implement an interaction using an interface similar to the 3GPP IMS ISC. Based on the network as described above, the embodiment of the present invention provides the following method for playing video and controlling video playback. For the sake of simplicity of description, in the following description of the embodiments, the video service is used as the video service and the advertisement video is taken as the video content. In other embodiments of the present invention, the video involved may of course be other content and other. The form of video does not affect the implementation of embodiments of the present invention.

First, the method of playing video:

The method for playing a video provided by the embodiment of the present invention includes:

When the call state meets the video playing condition, the network side device performs media negotiation with the terminal. After the negotiation succeeds, the network side device plays the video to the terminal.

Further, in a preferred embodiment of the present invention, the method may further include:

When it is judged that the current call state no longer satisfies the video condition, the network side device stops playing the video to the terminal.

In a specific application, the triggering of the video service may be completed by the SIP server as described in the foregoing network, and the video service server is used as the network side device to complete the judgment of the video playing condition, the media negotiation, and the video playing.

According to whether a call has been established between users, the call state includes the following:

1. When the call has not been established between the calling and called user terminals, the call state is waiting for the off-hook state. Since the video call is not currently performed, the playback of the advertisement video at this time does not affect the normal call between the users. It can be obtained that the call state satisfies the video playing condition;

2. After the call is established between the calling and called user terminals, and when only the audio call is made between the calling and called users, the call state at this time is the audio call state; since the advertisement video is not played, the audio call between the users is not generated. Influence, so that the call state at this time can be obtained to satisfy the video playing condition;

3. After the call is established between the calling and called user terminals, and the audio and video calls are made between the calling and called users, the call state at this time is the audio and video call state, and the video call is being played between the users, if the advertisement is further played. The video is bound to affect the video call between users. Therefore, it can be judged that the call state at this time does not satisfy the video playback condition.

In practical applications, after the user establishes a call, the user can switch between audio and video, and the corresponding conditions of the video play.

In the following, in combination with the above different call states, the advertisement service is taken as a video service as an example, The method provided by the embodiment is described in detail; wherein, the advertisement service is a service in which an advertisement server plays an advertisement to a contracted user, and the service realizes that "there is an advertisement, there is an advertisement, and the purpose is. After the advertising service, the corresponding server can play advertisements for the user before the user establishes the call and during the call. For the user, the corresponding information can be obtained by watching/listening the advertisement, and the advertisement can be obtained by watching/listening the advertisement. The discount on the call charge, for the operator, can provide the user with an advertisement, and collect the advertisement fee from the advertiser, thereby obtaining a considerable income; In the following description, the advertisement server is the user terminal to the user side thereof. A server that provides advertising services.

(1) The method of playing the advertisement video during the call establishment process:

Referring to FIG. 2, in an embodiment of the present invention, playing an advertisement video during a call establishment process includes the following steps:

Step 201: The calling user initiates a call to the called user, and the terminal UE1 of the calling user sends a call setup request (INVITE) message to the SIP server, where the INVITE message carries a voice media description to indicate that the current request is to establish a voice call. For the sake of simplicity, the INVITE message carrying the voice media description is represented as: INVITE(Al); where "A" is Audio, and A1 indicates that there is one audio media capability description line in the SDP carried by the INVITE. Similarly, "V" is Vedio, and VI indicates that there is a video media capability description line in the SDP.

Step 202 to step 203: The SIP server triggers an advertisement service for the calling user, and routes the INVITE (Al) message to the advertisement server (AS); wherein the AS is a video service server that implements an advertisement service;

Step 204: The AS records the related state of the media SDP information and the call status carried in the INVITE message, and routes the INVITE (Al) message back to the SIP server.

Step 205: The SIP server routes the INVITE (Al) message to the called terminal UE2. The routing process in this step may also pass through other SIP servers or other service servers in the middle of the routing process. Narrative

Step 206 to step 207: The called terminal UE2 returns a 180 response to the AS via the SIP server to inform the AS that the called terminal is currently waiting for the called user to go off-hook;

Step 208: After receiving the 180 response, the AS learns that the called user terminal is currently in the off-hook waiting state, and the AS determines that the UE1 is currently capable of receiving the video media stream according to the media capability of the calling terminal UE1. Determining to send a video advertisement to the UE1; In this step, the AS needs to perform the determination according to the media capability of the calling terminal UE1. Because the UE1 initiates the voice call request in step 201, it only carries the audio media description. Therefore, the AS cannot send according to the UE1. The SDP OFFER in the incoming INVITE message determines the real media capability of the UE1, but needs to be predicted by other means. The simpler way is: the AS defaults that the user who subscribes to the advertising service uses the video and audio codec. The terminal of the capability, at this time, once the SIP server triggers the advertisement service for the calling user, the AS triggers the calling user terminal of the advertising service to have the audio and video encoding and decoding capability by default; the other way is: When the SIP server triggers the advertising service for the calling user, it filters according to the media processing capability of the calling user terminal, and the SIP server only performs the determination when the calling user terminal has the corresponding audio and video processing capability. The INVITE message is forwarded to the AS, in which case the AS can still default to the received INVITE message. The user terminal has an audio and video codec capability; Step 209 to Step 210: The AS returns a 180 response to the calling user terminal UE1 via the SIP server, and informs the UE1 that the currently established call is waiting for the called user to pick up the phone. The SDP Answer is carried in the 180 response returned in this step, so as to complete the Offer/Answer matching process with the SDP Offer in the INVITE message sent by the calling user terminal UE1 in step 201, the SDP Answer can be constructed by the AS according to the SDP Offer according to the SDP matching rules;

Step 211 to step 212: The AS sends an update (UPDATE) request to the calling user terminal UE1 via the SIP server, and carries the SDP Offer in the request to indicate the codec of the advertisement audio and video media stream and the transmission of the media stream. Port

Steps 213 to 214: After receiving the update request, the calling user terminal UE1 returns a response message 200 to the AS via the SIP server, where the 200 response carries an SDP Answer, and the SDP Answer includes the The voice media capability description and the video media capability description of the UE1, the AS receives the response, and according to the media capability description of the terminal UE1 carried therein, determines that the terminal has video playback capability, thereby completing the calling user terminal UE1 and the AS. The advertisement media negotiation between the AS and the calling user terminal is completed through steps 211 to 214, and the advertisement media stream connection between the AS and the calling user terminal is established, so as to be followed. In the step, the AS uses the connection to play an advertisement media stream to the terminal UE1;

Step 215: After the AS learns that the negotiation with the calling user terminal UE1 is successful, The terminal UE1 sends the advertisement video media stream to implement the advertisement service. The advertisement video media stream may further include audio as needed, and does not affect the implementation of the embodiment of the present invention.

In the above embodiment, the AS constructs an SDP in the temporary response of the INVITE sent to the calling user terminal UE1 after learning that the called user is currently waiting for the off-hook state, and the temporary response is performed through steps 209 to 210. Sending to the UE1, an audio media negotiation is performed to establish a call connection request initiated by the calling user, and then an update request is initiated to the calling user terminal UE1, and the related information of the advertisement video is carried in the update request, so as to Video media negotiation is performed between the AS and the calling user terminal UE1. Thus, the above embodiment includes two media negotiation processes.

In order to simplify the implementation of the embodiment of the present invention, in another embodiment of the present invention, the AS may also directly carry the related indication information of the advertisement video in the temporary response of the INVITE, and initiate a connection request in combination with the calling user terminal. The media capability information carried in the time is used to complete the media negotiation between the AS and the calling user terminal, so that the implementation process of the embodiment only needs one media negotiation process. Referring to FIG. 3, the method provided by the embodiment specifically includes:

Step 301: The calling user initiates a call to the called user, and the terminal UE1 of the calling user sends an audio and video call request (INVITE) to the SIP server. The voice message and the video media description are carried in the INVITE message. Express the INVITE message carrying the voice and video media description as: INVITE(A1/V1);

Step 302 and step 202 are consistent;

Step 303: After receiving the INVITE (A1/V1) message, the AS determines that the terminal UE1 has the video processing capability and records the related state according to the video media description carried in the message.

Step 304 to step 308 and step 204 to step 208 are consistent;

Step 309 to step 310: In the 180 response returned to the UE1, the AS adds a media description of the advertisement SDP to indicate the codec of the advertisement audio and video media stream and the transmission port of the media stream; thus, the AS and the calling user terminal are completed. Audio and video media negotiation process between UE1;

Step 311 is the same as step 215.

It should be noted that, in the embodiment shown in FIG. 3, since the SDP matching principle of RFC3264 is required, the embodiment only carries the view in the INVITE message sent by the calling user terminal. The description of the frequency media capability can only be achieved.

In the embodiment shown in Figure 3, it should be noted that:

(1) The above describes the method for playing an advertisement video before the call is established. In the actual application, after the called user picks up the phone and answers the call, an audio and video call may be established with the calling user. In this case, in order not to affect the main being The normal audio and video call between the users is called, and the playing of the advertisement needs to be stopped. Therefore, the foregoing embodiment may further include:

After the called user picks up the call, it returns an off-hook response message to the AS, where the response message is a 200 response message, where the 200 response message carries the audio and video media capability description of the called user terminal; After the 200 response message is sent, the SDP media matching analysis is performed to learn that an audio and video call is established between the calling and called users, the AS stops playing the advertising audio and video to the calling user terminal, and returns a 200 response message to the calling user terminal; The 200 response message returned by the AS to the calling user terminal does not carry the media capability description of the called user terminal. The reason is: because the advertisement is played to the calling user terminal before the call is established, AS The SDP Offer/Answer match has been completed with the calling terminal. Therefore, according to the RFC 3264, the 200 response message returned by the AS to the calling user terminal does not carry the media capability description of the called user terminal.

The AS sends a relNVITE message to the calling user terminal, where the message carries the audio and video media capability description of the called user terminal, and after receiving the message, the calling user terminal returns a 200 response message to the AS. The message carries the media capability description of the calling user terminal, and the media negotiation between the calling and the called user terminals is completed through the process, and after the negotiation is passed, the audio and video calls between the calling and called user terminals are established.

(2) The above describes the process of playing an advertisement for the calling user. In other embodiments of the present invention, the called user can also play the advertisement, and correspondingly, the called AS and the called user advertise. The media negotiates, and the called AS plays the advertisement to the called user terminal, and the implementation method thereof is similar to the method for playing the advertisement for the calling user terminal, and is not mentioned here.

(2) The method of playing the advertisement video after the call is established:

Referring to FIG. 4, in this embodiment, the calling AS provides an advertising service for the calling user terminal UE1 of the local side, and correspondingly, the called AS provides an advertising service for the called user terminal UE2 of the local side, and the calling AS Signaling between the AS and the called AS can also be performed by forwarding with other devices. For the convenience of description, the following describes the direct signaling transmission between the calling AS and the called AS as an example.

Referring to FIG. 4, in an embodiment of the present invention, a method for playing an advertisement video after a call is established includes the following steps:

Step 401 to step 403: The calling user initiates a call to the called user, and the calling user terminal UE1 sends a call establishment request INVITE to the called user terminal UE2 via the calling AS and the called AS. In the request, the voice is carried. The media description, for simplicity of description, indicates the INVITE message carrying the voice media description as: INVITE(Al); In a specific application, the INVITE (Al) message sent by the calling user terminal to the called user terminal may also pass The other SIP server routes can reach the called user terminal. For the sake of simplicity of description, the routing process is not described here.

Step 404 to step 405: The called user terminal UE2 returns a 180 response to the calling AS via the called AS to notify the called AS and the calling AS respectively, and the called terminal is currently waiting for the off-hook state; Step 406: The calling AS returns a 180 response to the calling user terminal UE1 to respond to the establishment of the voice call request sent by the calling user terminal UE1 in step 401, and informs the UE1 that the voice call is currently established; wherein, in this step, the voice call is successfully established; In the 180 response, the SDP Answer is carried, so as to complete the Offer/Answer matching process with the SDP Offer in the INVITE message sent by the calling user terminal UE1 in step 401;

Step 407 to step 408: The calling AS sends an update (UPDATE) request to the calling user terminal UE1, and carries the SDP Offer in the request to indicate the codec of the advertisement audio and video media stream and the sending port of the media stream. After receiving the update request, the UE1 returns a response message 200 to the calling AS, where the 200 response carries the voice capability description and the video media capability description of the UE1, and the calling AS receives the response. Determining, according to the media capability description of the terminal UE1 carried in the terminal, that the terminal has the video playing capability, thereby completing the advertising media negotiation between the calling user terminal UE1 and the calling AS; similarly, when the called user terminal UE2 is required When the advertisement service is implemented, the similar steps of steps 407 to 408 are also performed between the called AS and the called user terminal UE2, so that the advertisement media content negotiation between the called AS and the called user terminal UE2 is completed. Among them, the mediation of the calling party and the mediation of the called party have no prioritized relationship, and the media negotiation of the main called party can also enter simultaneously. , It does not affect the implementation of the embodiments of the present invention;

Step 409: The called user picks up the phone and the called user terminal UE2 returns 200 rings to the called AS. The message carries an audio media description in the response message, indicating that the call between the calling and the called party only includes the audio content, and does not include the video content; for the convenience of description, the 200 response message carrying the audio media description is expressed as: 200 (A1);

Step 410: The called AS forwards the received 200 response message 200 (A1) to the calling AS.

Step 411: The calling AS forwards the 200 response message to the calling user terminal UE1 to notify the UE 1 that the called user picks up the call.

Step 412: The calling AS receives only the audio media description in the received 200 response message, and determines that the main called party has no video content, and the calling user terminal has the capability of playing the advertisement video, and determines the The calling user terminal UE1 plays the advertisement video media stream. In the preferred embodiment of the present invention, in order not to affect the voice call between the calling party and the called party, only the advertisement video media stream is played without playing the advertisement audio;

Step 413: The calling AS sends a re-invitation (relNVITE) message to the calling user terminal UE1, where the media description of the advertising video is added based on the voice media description already negotiated between the calling and the called terminal. For convenience of description, the relNVITE message carrying the voice media description and the advertisement video media description is expressed as: reINVITE (Al/V advertisement);

In a specific application, in order to distinguish between the advertisement video and the video call, the indication information may be added to the relNVITE message sent by the calling AS to the calling user terminal UE1, so that the terminal UE1 can view the advertisement video according to the indication information. In the preferred embodiment of the present invention, the calling user terminal UE1 may directly perform the subsequent step 414 when determining that the media negotiation of the advertisement video is to be performed according to the indication information. The relNVITE message is automatically replied. If the relNVITE message is determined to be a request message for the peer user to initiate a video call according to the indication information, the local user may be further prompted to accept the video call, and according to the selection of the local user, Next steps related to video calls;

Step 414: After the calling user terminal UE1 receives the relNVITE message, the calling party

The AS returns a 200 response message, and carries the audio and video media capability description of the calling user terminal UE1 in the response message, so that the calling AS completes the media negotiation according to the media capability of the calling user terminal UE1; The 200 response message is represented as 200 (A1/V);

Step 415: The calling AS performs wide according to the media capability reported by the calling user terminal UE1. After the negotiation is successful, the corresponding advertisement video is played to the calling user terminal UE1; in order not to affect the normal audio call between the calling and called users, the advertisement played by the calling AS to the calling user terminal Includes only video content and no audio content. At this time, the calling user can see the advertisement video that he likes while talking with the called user.

Steps 413 to 415 are specific implementations of playing the advertisement video to the calling user terminal. Correspondingly, the called AS can play the advertisement video to the called user terminal through steps 416 to 418. The specific implementation process and step 413 are performed. Step 415 is similar. It should be noted that there is no order of execution between steps 413 and 415 and steps 416 to 418, and the playing of the advertisement for the calling user terminal can be performed simultaneously with playing the advertisement for the called user terminal. Second, after the video is played, the video playback can be further controlled. Next, the corresponding method for controlling the video playback is introduced:

After the call is established, if a voice call is established between the calling and called user terminals, the AS can play an advertisement video to the user terminal during the user's call, and the user can watch the advertisement while talking, and based on the user's needs, The user can control the playing of the advertisement, and the control includes: canceling the advertisement played during the call, restoring the advertisement during the call, and automatically stopping the advertisement when the user switches from the audio call to the audio and video call. An interface for performing the control operation is provided correspondingly on the user terminal to receive a control command of the user and perform an operation related to the control command.

Next, a method of controlling video playback will be described in detail with reference to FIG.

Referring to FIG. 5, an audio call is made between the calling and called users, and the AS plays an advertisement video to the calling user terminal UE1. In this case, the user's control of the advertisement playing includes the following steps:

Step 501: The calling user terminal UE1 selects an operation for canceling the advertisement video playback; Step 502 to Step 503: The terminal UE1 sends a re-invitation (relNVITE) message to the AS via the SIP server, and carries the advertisement in the message. Instructing, and the video media line receiving port in the media description of the SDP in the message is 0, to notify the AS to cancel the video media playing of the advertising service, and the audio and video calls between the calling and called users are not changed; The description is simple, and the relNVITE message is represented as reINVITE(Al/V0);

Step 504 to step 506: after the AS receives the relNVITE message, according to the wide The indication indicates that the media negotiation is currently required for the advertisement service, and according to the video media description in the message, it is determined that the calling user terminal UE1 currently selects to stop playing the advertisement video, so that the AS stops playing the advertisement video to the terminal UE1. And constructing an SDP Answer, carrying the SDP Answer through the response message 200, returning to the terminal UE1 via the SIP server;

At this point, the operation of canceling the advertisement video playback is completed; in the actual application, after the user cancels the advertisement video playback, the user can further resume the playback of the advertisement video, and the restoration of the advertisement video playback specifically includes the following steps:

Step 507: The calling user terminal UE1 selects to resume playback of the advertisement video;

Step 508 to step 509: The terminal UE1 sends a relNVITE message to the AS via the SIP server, and carries an advertisement indication in the message, and the video media line receiving port in the media description of the SDP in the message is a valid value, to notify The AS resumes the video media playing of the advertising service, and the audio and video calls between the calling and called users are not changed; for convenience of description, the relNVITE message is represented as reINVITE (Al/Vl);

Step 510: After receiving the relNVITE message, the AS determines, according to the advertisement indication therein, that media negotiation is currently required for the advertisement service, and determines, according to the video media description in the message, that the calling user terminal UE1 currently selects to resume the advertisement. The playback of the video, so that the AS starts to replay the advertisement video to the terminal UE1; in a specific application, the AS may sequentially play the next advertisement for the terminal UE1, or may select the call state in the stored advertisement list. Advertising list, and selecting a corresponding advertisement from the list to play for the terminal UE1;

Step 511 to step 512: After the AS plays the advertisement to the terminal UE1, the SDP Answer carries an advertisement video media description, and the SDP Answer is returned to the terminal UE1 via the SIP server by using the response message 200. In order to inform the UE1 that the currently resumed advertisement video is successfully played.

In the specific application, in addition to canceling the advertisement, the user can also switch from the audio call to the audio and video call through the operation interface. Once the audio/video call is successfully switched, the user needs to stop in order not to affect the normal audio and video call between the users. The playback of the advertisement, at this time, stopping the advertisement to play specifically includes the following steps:

Step 513: The calling user terminal UE1 performs an operation of switching an audio call to an audio-video call. Step 514 to step 515: The terminal UE1 sends a re-invitation relNVITE message to the AS via the SIP server, does not carry an advertisement indication in the message, and carries the audio media capability description and video media of the terminal UE1 in the message. Capability description, to inform the AS to currently switch the call between the user terminals to the audio and video call; for simplicity of description, the relNVITE message is represented as reINVITE (Al/Vl);

Step 516 to step 518: After receiving the relNVITE message, the AS does not carry the advertisement indication, so it is determined that the current media negotiation is the media negotiation between the primary and the called user, and thus the receiving The relNVITE message is transparently transmitted to the called user terminal UE2 via the SIP server to notify the called user terminal: the calling user currently requests to perform an audio and video call; Step 519 to Step 520: The called user terminal UE2 After receiving the relNVITE message, selecting whether to accept the video call, and carrying the media matching result in the response message 200, returning to the AS via the SIP server;

Step 521: The AS checks the audio and video matching result of the calling party and the called user according to the response message returned by the called user terminal UE2. If the matching result includes a video, the AS may determine the content between the calling and called user terminals. The call will include a video call to stop playing the advertisement to the calling user terminal. If the matching result does not include the video, it can be determined that the current call between the primary and the called party does not include the video call, and the advertisement video is continuously played to the calling user terminal.

Step 522 to step 524: The AS routes the received 200 response message to the calling user terminal UE1 through the SIP server to notify the terminal that the current call is successfully switched to the audio and video call, and the calling user terminal UE1 and The called user terminal UE2 performs an audio and video call.

Step 513 to step 524 are operations for stopping the advertisement of the advertisement video when the user switches the audio call to the audio and video call. In other embodiments of the present invention, the foregoing operation may also be implemented by using the method shown in FIG. 5-1. The application scenario is as follows: The calling AS and the called AS play the video advertisement to the calling user terminal UE1 and the called user terminal UE2 respectively, and after the terminal UE1 performs the operation of switching to the audio and video call, the implementation of stopping the playing of the advertising video includes:

Step 525: The calling user terminal UE 1 sends a relNVITE message to the calling AS, where the message carries the audio media capability description and the video media capability description of the terminal UE1, so that the AS currently switches the call between the user terminals to Audio and video call, and, since the calling AS is playing an advertisement to the calling user terminal UE1, the message media description is also carried in the message; Conveniently, the relNVITE message is represented as reINVITE (Al/V advertisement / VI);

Step 526: The calling AS forwards the relNVITE message to the called AS. Since the advertisement video is played only between the AS and the user terminal, the forwarded relNVITE message does not include the media description of the advertisement.

Step 527: The called AS forwards the relNVITE message to the called user terminal, because the called AS is playing an advertisement to the called user terminal UE2, and therefore, the called relNVITE message sent by the called AS to the called user terminal includes an advertisement. Media description;

Step 528: The called user terminal UE2 learns that the calling user currently switches to the audio and video call according to the received relNVITE message, sets the media line receiving port of the advertisement to 0, and returns a 200 response message to the called AS, where the message carries There is an audio and video media description, and also carries an advertisement media description with a receiving port of 0, and the response message is represented as 200 (A1/V1/V0);

Step 529: The called AS determines, according to the received relNVITE message, that the video included in the call includes the video and stops playing the advertisement video to the called user terminal UE2. Step 530: The called AS sends the advertisement to the calling AS. Returning a 200 response message, which carries an audio and video media description;

Step 531: The calling AS determines, according to the received response message, that the video is included in the call, and stops playing the advertisement video to the calling user terminal.

Step 532: The calling AS returns a 200 response message to the calling user terminal UE1, where the receiving port of the advertising media line carried in the message is 0.

Through the above steps 525 to 532, the operation of stopping the playing of the advertisement video is realized. In this embodiment, the calling AS and the called AS respectively play the advertisement video to the calling user terminal, and in other embodiments of the present invention, Only the calling AS or the called AS plays an advertisement video to its corresponding terminal. At this time, the relNVITE message transmitted between the user terminal and the AS that performs the advertisement video playback carries the advertisement media description, and is determined to be switched. After the video is included in the call, the returned response message carries an advertisement media description with the receiving port being 0.

In summary, when the terminal is currently receiving the advertisement video, the user can perform the cancel advertisement operation on the terminal; when the terminal is currently performing a video call with the counterpart terminal, the user can cancel the video operation, and further can be restored. Operation of the advertisement; When the terminal does not currently receive any video, the user can perform an operation of starting an advertisement video or starting a video call on the terminal. It should be noted that in the actual application, the above control process of canceling the advertisement video, restoring the advertisement video, and stopping the advertisement video may be separately performed separately. In addition, the above three control processes are not limited in sequence, and the above embodiment is only A preferred embodiment for the convenience of description is not to be construed as limiting the embodiments of the invention.

The foregoing embodiment uses the calling user terminal and the AS corresponding thereto as an example to describe how to perform video playback control. In other embodiments of the present invention, the called user terminal and the AS corresponding thereto may also be used. The above control operation is completed, and the specific implementation process is similar to the process described in the foregoing embodiment, and is not mentioned here.

In addition, the control process described in the foregoing embodiment is performed after the call is established. Of course, the operation of canceling the advertisement video and restoring the advertisement video may also be performed when the call is established, and the specific implementation process is consistent with the process described in the above embodiments.

In the above various method embodiments, for the sake of brevity, some SIP messages that are not related to the specific implementation scenarios of the embodiments of the present invention, such as an acknowledgement message (ACK), etc., and some non-critical network entities that are omitted are also omitted. The related art and network entities required to implement the above method can be clearly determined by those skilled in the art from the description of the above embodiments. The device for playing video provided by the embodiment of the present invention:

Referring to FIG. 6, the apparatus for playing video provided by the embodiment of the present invention includes:

The call state determining unit 601 is configured to determine a current call state after the video service is triggered; the determining unit 602 is configured to determine whether the current call state meets a video playing condition, and notify the media negotiation unit 603 of the determination result;

The media negotiating unit 603 is configured to perform media negotiation with the terminal when the current call state is satisfied that the video playing condition is met;

The video service playing unit 604 is configured to play a video to the terminal after determining that the media negotiation unit 603 performs the media negotiation successfully.

In a preferred embodiment of the present invention, in order to implement control of video playback, the apparatus may further include:

Stopping the video service playing unit, when the determining unit 602 informs that the video playing condition is no longer satisfied, controlling the video service playing unit to stop playing the video service, and/or, The canceling the video service playing unit is configured to: receive the re-invitation message sent by the terminal, cancel the playing of the video service according to the video service indication carried in the re-invitation message and the inactive video service media description; and/or ,

The video service playback unit is configured to: receive a re-invitation message sent by the terminal, and resume playback of the video service according to the video service indication carried in the re-invitation message and the video service media description in an active state.

In a specific application, the device for playing a video may be a video service server. Of course, other network side devices having corresponding functions may be used as the device for playing video, which does not affect the implementation of the embodiment of the present invention; The video service, the device for playing the video may be an advertisement server. The system for playing video provided by the embodiment of the present invention:

Referring to FIG. 7, a system for playing video provided by an embodiment of the present invention includes a video service server 701 and a SIP server 702, where:

The video service server 701 is configured to determine a current call state after triggering the video service, and perform media negotiation with the terminal when the determined call state meets the video play condition, and play the terminal to the terminal after the negotiation succeeds. Video

The SIP server 702 is configured to: perform registration and triggering of a video service, and perform message routing when the video service server performs media negotiation with the terminal.

In a specific application, the video needs to be played for the user according to the corresponding video service policy. In this case, the system provided by the embodiment of the present invention may further include:

The video service policy management unit is configured to implement setting, modifying, and/or deleting of a video service policy, and providing a video service policy for the video service server.

For the system for playing the video, the corresponding device is also required to receive the video uploaded by the user or the operator. In this case, the system may further include:

The video content management unit is configured to receive and save the uploaded video file and provide the video for the video service server to play.

Further, in order to implement management of the video content, the video content management unit may be further configured to review and/or delete the video file and query the video file. For the preferred embodiment of the present invention, the video service described in the foregoing system embodiment may be an advertisement video service, and correspondingly, the video is an advertisement video.

The above is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

Rights request

A method for playing a video, the method comprising:

When the network side device determines that the current call state meets the video playing condition, performs media negotiation with the terminal, and after the negotiation succeeds, the video is played to the terminal; wherein the network side device is provided by the terminal of the current side. The network side device of the video service.

2. The method according to claim 1, wherein the specific implementation of the network side device determining the current call state is:

After receiving the call setup request sent by the calling user terminal, the network side device routes the request to the called user terminal;

The network side device receives the response message returned by the called user terminal, and the response message indicates that the called user is currently waiting for the off-hook state.

The method according to claim 2, wherein the network side device determines that the video playback condition is currently satisfied according to the current call state and waits for the off-hook state, and the specific implementation of the media negotiation with the terminal is:

The network side device sends an update request carrying the media description of the video service to the terminal; the network side device receives the response message that is returned by the terminal and carries the audio and video media capability description of the terminal, according to the audio and video of the terminal Media capability description for media negotiation.

The method according to claim 2, wherein the network side device determines that the video playback condition is currently satisfied according to the current call state, and the specific implementation of the media negotiation with the terminal is:

The network side device obtains the audio and video capability of the terminal from the call setup request sent by the calling user terminal;

The network side device sends a media description of the video service to the calling user terminal by using a response message of the call setup request.

The method according to claim 1, wherein the specific implementation of the network side device determining the call state is:

After the user picks up the call, the network side device determines that the called user is in the off-hook response state according to the received response message returned by the called user terminal, where the response message carries There is a media description.

The method according to claim 5, wherein when the media description carried in the response message does not include the activated video media description, the network side device determines that the current call state satisfies the video playing condition, The specific implementation of media negotiation with the terminal is as follows:

Sending, by the network side device, a re-invitation message to the terminal, where the message carries a media description of the video service;

The network side device receives a response message that is returned by the terminal and carries the capability description of the audio and video media of the terminal, and performs media negotiation according to the audio and video media capability description of the terminal.

The method according to claim 3 or 6, wherein the terminal is a calling user terminal and/or a called user terminal.

The method according to claim 1, wherein the method further comprises: when it is determined that the current call state no longer satisfies the video playing condition, the network side device stops playing the video to the terminal.

The method according to claim 8, wherein the specific implementation of determining that the current call state no longer satisfies the video playing condition is:

After the operation of switching from the audio call to the audio and video call is performed on the terminal, the network side device receives the re-invitation message sent by the terminal, where the media description of the audio and video call in the message is an active state;

The network side device learns that the audio call is currently switched to the audio and video call according to the media description of the audio and video call carried in the re-invitation message, and the re-invitation message is forwarded to the other terminal;

The network side device determines, according to the response message returned by the other side terminal, whether the other side terminal accepts the video call, and if yes, determines that the video playing condition is no longer satisfied.

After the operation of switching from the audio call to the audio and video call is performed on the terminal, the network side device receives the re-invitation message sent by the terminal, where the message carries the activated audio media description and the advertising medium. Description and video media description;

The network side device obtains according to the media description of the audio and video call carried in the re-invitation message. Knowing that the audio call needs to be switched to the audio and video call, and the re-invitation message is forwarded to the other terminal;

The method according to claim 1, wherein the method further comprises: after performing the operation of canceling the video service on the terminal, the network side device receives a re-invitation message sent by the terminal, where The message carries the video service indication, and the carried video service medium is described as inactive.

The network side device cancels the playing of the video service according to the video service indication and the video service media description carried in the re-invitation message.

The method according to claim 11, wherein after canceling the playing of the video service, the method further comprises:

After the operation of restoring the video service on the terminal, the network side device receives the re-invitation message sent by the terminal, where the message carries the video service indication, and the carried video service media description is activated. ;

The network side device resumes playing of the video service according to the video service indication and the video service media description carried in the re-invitation message.

13. A device for playing a video, the device comprising:

The device according to claim 13, wherein the device further comprises: a stop video service playing unit, configured to control the video service when it is learned from the determining unit that the current call state no longer satisfies the video playing condition The playback unit stops playing the video service.

The device according to claim 13, wherein the device further comprises: The canceling the video service playing unit is configured to: receive the re-invitation message sent by the terminal, cancel the playing of the video service according to the video service indication carried in the re-invitation message and the inactive video service media description; and/or ,

16. A system for playing video, characterized in that the system comprises a video service server and a SIP server, wherein:

The video service server is configured to: after triggering the video service, determine a current call state, and perform media negotiation with the terminal when the determined call state meets the video play condition, and play the video to the terminal after the negotiation succeeds. ;

The system according to claim 16, wherein the system further comprises a video service policy management unit, configured to implement setting, modifying, and/or deleting of a video service policy, and providing a video service policy for the video service server.