CN105207976B - The multimedia messages of AVS-DASH system intercut control method, system and client - Google Patents

The multimedia messages of AVS-DASH system intercut control method, system and client Download PDF

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Publication number
CN105207976B
CN105207976B CN201410284776.0A CN201410284776A CN105207976B CN 105207976 B CN105207976 B CN 105207976B CN 201410284776 A CN201410284776 A CN 201410284776A CN 105207976 B CN105207976 B CN 105207976B
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China
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media information
multithread
media
description
information segment
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CN105207976A (en
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岳贯集
周超
张行功
郭宗明
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Peking University
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Peking University
Peking University Founder Group Co Ltd
Beijing Founder Electronics Co Ltd
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Abstract

The multimedia messages that the present invention provides a kind of AVS-DASH system intercut control method, system and client, wherein, this method comprises: obtaining media information segment to be played from server by client, and media information description corresponding with media information segment is inquired from the media description file obtained in advance, if judgement is known in media information description comprising multithread property parameters, type is then intercutted according to the multithread in multithread property parameters, the inter cut time of multithread and the duration of intercutting of multithread control the broadcasting that stream is intercutted in media information segment, thus in AVS-DASH system on the basis of Transmitting of Multi-media Information mechanism, realize the effective description and control to the multithread media information comprising intercutting stream, improve the diversity of media traffic.

Description

The multimedia messages of AVS-DASH system intercut control method, system and client
Technical field
The present invention relates to fields of communication technology more particularly to a kind of multimedia messages of AVS-DASH system to intercut controlling party Method, system and client.
Background technique
Hypertext transfer protocol HTTP dynamic in the audio/video encoding standard of China's independent research under multimedia framework is certainly Streaming Media standard is adapted to, abbreviation AVS-DASH can use HTTP server traditional on internet and provide more matchmakers of high-quality Hold in vivo.
It is that many small media information segments are stored in that the working principle of AVS-DASH system, which is by multimedia messages cutting, On HTTP server, each media information segment can be made into the piecemeal sample of different code rates, for covering different bandwidth Situation.Client obtains and parses media description file corresponding with multimedia messages, obtains from media description file each The associated description of media information segment, the website information including each media information segment, broadcast start time and duration, The resolution ratio of video adapts to bit rate etc., and according to media description file acquisition and plays multimedia messages.
But it is based on existing AVS-DASH system, client cannot achieve when playing multimedia messages to slotting The control for broadcasting stream plays, and therefore, needs a kind of control method for playing back for the multithread media information comprising intercutting stream.
Summary of the invention
In view of the above drawbacks of the prior art, the multimedia messages that the embodiment of the present invention provides a kind of AVS-DASH system are inserted Broadcast control method, system and client.
The multimedia messages that one aspect of the present invention provides a kind of AVS-DASH system intercut control method, comprising:
Media information segment to be played is obtained from server, and inquiry and institute from the media description file obtained in advance State the corresponding media information description of media information segment;
If judgement is known in the media information description comprising multithread property parameters, according to the multithread property parameters control Make the broadcasting that stream is intercutted in the media information segment, wherein the multithread property parameters specifically include: class is intercutted in multithread The duration is intercutted in type, the inter cut time of multithread and multithread.
Another aspect of the present invention provides a kind of client, comprising:
Processing module, for obtaining media information segment to be played from server, and from the media description obtained in advance Media information description corresponding with the media information segment is inquired in file;
Control module, if for judging to know in the media information description comprising multithread property parameters, according to Multithread property parameters control the broadcasting that stream is intercutted in the media information segment, wherein the multithread property parameters specifically include: Multithread intercut type, the inter cut time of multithread and multithread intercut the duration.
The multimedia messages that another aspect of the invention provides a kind of AVS-DASH system intercut control system, comprising:
Server and above-mentioned client.
The multimedia messages of AVS-DASH system provided in an embodiment of the present invention intercut control method, system and client, Media information segment to be played is obtained from server by client, and from the media description file obtained in advance inquiry with The corresponding media information description of media information segment, if judgement is known in media information description comprising multithread property parameters, root Believe according to the duration control media that intercut for intercutting type, the inter cut time of multithread and multithread of the multithread in multithread property parameters The broadcasting of stream is intercutted in breath segment, thus in AVS-DASH system on the basis of Transmitting of Multi-media Information mechanism, is realized pair Effective description and control comprising intercutting the multithread media information of stream, improve the diversity of media traffic.
Detailed description of the invention
Fig. 1 is that the multimedia messages of an AVS-DASH system provided in an embodiment of the present invention intercut the process of control method Figure;
Fig. 2 is that the multimedia messages of another AVS-DASH system provided in an embodiment of the present invention intercut the stream of control method Cheng Tu;
Fig. 3 is the structural schematic diagram of a client provided in an embodiment of the present invention;
Fig. 4 is that the multimedia messages of an AVS-DASH system provided in an embodiment of the present invention intercut the structure of control system Schematic diagram.
Specific embodiment
Fig. 1 is that the multimedia messages of an AVS-DASH system provided in an embodiment of the present invention intercut the process of control method Figure, as shown in Figure 1, this method comprises:
Step 100, media information segment to be played is obtained from server, and from the media description file obtained in advance Inquire media information description corresponding with the media information segment;
In AVS-DASH system, multimedia messages, which can be split, is stored in HTTP clothes for many small media information segments It is engaged on device, each media information segment can be made into the piecemeal sample of different code rates, for covering different bandwidth conditions, institute Have an information such as organizational form, code rate, resolution ratio, the web page address of media information segment, by a media description file into Row description.It should be noted that multimedia messages include video information and audio-frequency information.
Client to multimedia messages play during, first look at obtain in advance it is corresponding with the multimedia messages Media description file, include initial time and the webpage of each media information segment cut in media description file Location, client successively obtain sequentially in time and play each media information segment described in media description file.When After client obtains media information segment to be played from server, inquiry and the media information segment from media description file Corresponding media information description.
Step 101, if judgement is known in the media information description comprising multithread property parameters, according to the multithread category The broadcasting of stream is intercutted in media information segment described in property state modulator, wherein the multithread property parameters specifically include: multithread That intercuts type, the inter cut time of multithread and multithread intercuts the duration.
Client query corresponding with media information segment media information description, judge in media information description whether Comprising multithread property parameters, specifically, multithread property parameters include: the inter cut time for intercutting type type, multithread of multithread Duration duration is intercutted in offsetStart and multithread, wherein the type type that intercuts of multithread includes: that centre is intercutted Mode Default, covering intercut mode Overlap with synchronize intercut mode Concurrent, the inter cut time of multithread OffsetStart is the relative time based on the media information segment period starting point;The duration is intercutted in multithread Duration is that this intercuts the play time of stream.If judgement is known comprising multithread property parameters in media information description, should Media information segment is identified as comprising original media stream and intercuts the multithread media information segment of stream, thus according to corresponding more The broadcasting of stream is intercutted in the stream attribute state modulator media information segment.
Specifically, when the value of type is Default, in such a way that centre is intercutted, client will be in offsetStart Stream is intercutted in broadcasting, after intercutting stream broadcasting, then continues to play original media stream from the breakpoint of original media stream, such as Advertisement is inserted into VoD program;When the value of type is Overlap, in such a way that covering is intercutted, client will be Stream is intercutted in offsetStart broadcasting, after intercutting stream broadcasting, then skips from original media stream the time of inter cut time length Point continues to play original media stream, such as Live program is inserted into advertisement;It is slotting using synchronizing when the value of type is Concurrent The mode broadcast, client will play in offsetStart and intercut stream, and the broadcasting of original media stream continues to, unaffected.
The multimedia messages of AVS-DASH system provided in this embodiment intercut control method, by client from server Media information segment to be played is obtained, and inquiry is corresponding with media information segment from the media description file obtained in advance Media information description, if judgement is known in media information description comprising multithread property parameters, according in multithread property parameters The intercutting in duration control media information segment for type, the inter cut time of multithread and multithread of intercutting of multithread intercuts broadcasting for stream It puts, to realize in AVS-DASH system on the basis of Transmitting of Multi-media Information mechanism to the multithread matchmaker comprising intercutting stream The effective description and control of body information, improve the diversity of media traffic.
Fig. 2 is that the multimedia messages of another AVS-DASH system provided in an embodiment of the present invention intercut the stream of control method Cheng Tu, as shown in Fig. 2, this method comprises:
Step 200, the multimedia messages play command and server issued according to user establishes hypertext transfer protocol HTTP connection is obtained corresponding with user multimedia messages to be played by the http session between the server Media description file;
In AVS-DASH system, multimedia messages can be that many small media are believed by the cutting of Web Video Service provider Breath segment is stored on one or HTTP server, and each media information segment can be made into the piecemeal sample of different code rates This, for covering different bandwidth conditions, the letter such as organizational form, code rate, resolution ratio, web page address of all media information segments Breath, is described by a media description file.It should be noted that multimedia messages include video information and audio letter Breath.When user sends multimedia messages play command to client, client is played according to the multimedia messages that user issues Order is established hypertext transfer protocol HTTP with server and is connect, after the completion of link is established, by between server Http session acquisition media description file corresponding with user's multimedia messages to be played.
Step 201, according to the description of the media information of media information segments multiple in the media description file and client Network information parameter, obtain media information segment to be played by http session, and from the media description text obtained in advance Media information description corresponding with the media information segment is inquired in part;
Client can be obtained media description file corresponding with the multimedia messages that user to be watched simultaneously parses, and looks into Media information description corresponding with each media information segment is ask, then client passes through according to local network information parameter Http session obtains media information segment to be played, and network information parameter specifically includes the informations parameter such as bandwidth conditions.Work as visitor After family end obtains media information segment to be played from server, inquiry and the media information segment pair from media description file The media information description answered.
Step 202, it if judgement is known in the media information description comprising multithread property parameters, inquires media information and retouches Group generic attribute parameter in stating, by video media information segment and audio media information segment with identical group of generic attribute parameter It is divided into one group;
Client query corresponding with media information segment media information description, judge in media information description whether Comprising multithread property parameters, specifically, multithread property parameters include: the inter cut time for intercutting type type, multithread of multithread Duration duration is intercutted in offsetStart and multithread, wherein the type type that intercuts of multithread includes: that centre is intercutted Mode Default, covering intercut mode Overlap with synchronize intercut mode Concurrent, the inter cut time of multithread OffsetStart is the relative time based on the media information segment period starting point;The duration is intercutted in multithread Duration is that this intercuts the play time of stream.If judgement is known comprising multithread property parameters in media information description, should Media information segment is identified as comprising original media stream and intercuts the multithread media information segment of stream, then inquires media information Group generic attribute parameter in description, by video media information segment and audio media information piece with identical group of generic attribute parameter Section is divided into one group.
Step 203, the broadcasting for intercutting stream in every group in media information segment is controlled according to the multithread property parameters, In, the multithread property parameters specifically include: type, the inter cut time of multithread and when intercutting lasting of multithread are intercutted in multithread Between.
Client controls in every group in video media information segment and audio media information segment according to multithread property parameters The broadcasting of stream is intercutted, specifically, when the value of type is Default, in such a way that centre is intercutted, client will be Stream is intercutted in offsetStart broadcasting, after intercutting stream broadcasting, then continues to play original matchmaker from the breakpoint of original media stream Advertisement is inserted into body stream, such as VoD program;When the value of type is Overlap, in such a way that covering is intercutted, client will OffsetStart broadcasting intercut stream, after intercutting stream broadcasting, then from original media stream skip inter cut time length when Between point continue play original media stream, such as Live program be inserted into advertisement;When the value of type is Concurrent, using synchronization The mode intercutted, client will play in offsetStart and intercut stream, and the broadcasting of original media stream continues to, not by shadow It rings.
The multimedia messages of AVS-DASH system provided in this embodiment intercut control method, pass through client and server Between http session obtain media information segment to be played, and from the media description file obtained in advance inquiry and media The corresponding media information description of information segment will have if judgement is known in media information description comprising multithread property parameters The video media information segment and audio media information segment of identical group of generic attribute parameter are divided into one group, then according to multithread attribute The duration of intercutting for intercutting type, the inter cut time of multithread and multithread of multithread in parameter controls media information piece in every group The broadcasting of stream is intercutted in section, thus in AVS-DASH system on the basis of Transmitting of Multi-media Information mechanism, realize to comprising The effective description and control for intercutting the multithread media information of stream, improve the diversity and flexibility of media traffic.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program When being executed, step including the steps of the foregoing method embodiments is executed;And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light The various media that can store program code such as disk.
Fig. 3 is the structural schematic diagram of a client provided in an embodiment of the present invention, as shown in figure 3, the client includes: Processing module 11 and control module 12, wherein processing module 11 is used to obtain media information segment to be played from server, and Media information description corresponding with the media information segment is inquired from the media description file obtained in advance;Control module 12 If controlling institute according to the multithread property parameters comprising multithread property parameters for judging to know in the media information description State the broadcasting that stream is intercutted in media information segment, wherein the multithread property parameters specifically include: type, more is intercutted in multithread The duration is intercutted in the inter cut time of stream and multithread.
The function and process flow of each module in client provided in this embodiment, may refer to above-mentioned side shown in FIG. 1 Method embodiment, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Further, processing module 11 is also used to:
Hypertext transfer protocol HTTP is established with server according to the multimedia messages play command that user issues to connect;It is logical The http session crossed between the server obtains media description text corresponding with user multimedia messages to be played Part.
Wherein, processing module 11 is specifically used for:
Believed according to the network of the description of the media information of media information segments multiple in the media description file and client Parameter is ceased, media information segment to be played is obtained by http session.
Based on the above embodiment, further, control module 12 is specifically used for:
The group generic attribute parameter in the media information description is inquired, by the video media with identical group of generic attribute parameter Information segment and audio media information segment are divided into one group, control media information segment in every group according to the multithread property parameters In intercut the broadcasting of stream.
The function and process flow of each module in client provided in this embodiment, may refer to above-mentioned side shown in Fig. 2 Method embodiment, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Fig. 4 is that the multimedia messages of an AVS-DASH system provided in an embodiment of the present invention intercut the structure of control system Schematic diagram, as shown in figure 4, the system includes: server 1 and client 2, wherein client 2 can be the above-mentioned implementation of the present invention The client that example provides, server 1 can be the server referred in the above embodiment of the present invention.
The multimedia messages of AVS-DASH system provided in this embodiment intercut the function of each module and place in control system Manage process, may refer to it is above-mentioned shown in embodiment of the method, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features; And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims (8)

1. a kind of multimedia messages of AVS-DASH system intercut control method characterized by comprising
Media information segment to be played is obtained from server, and inquiry and the matchmaker from the media description file obtained in advance The corresponding media information description of body information segment;
If judgement is known in the media information description comprising multithread property parameters, institute is controlled according to the multithread property parameters State the broadcasting that stream is intercutted in media information segment, wherein the multithread property parameters specifically include: type, more is intercutted in multithread The duration is intercutted in the inter cut time of stream and multithread;
Described controlled according to the multithread property parameters is intercutted the broadcasting of stream and is specifically included in the media information segment:
The group generic attribute parameter in the media information description is inquired, by the video media information with identical group of generic attribute parameter Segment and audio media information segment are divided into one group, are controlled in every group according to the multithread property parameters and are inserted in media information segment Broadcast the broadcasting of stream.
2. the multimedia messages of AVS-DASH system according to claim 1 intercut control method, which is characterized in that in institute It states before obtaining media information segment to be played, the method also includes:
Hypertext transfer protocol HTTP is established with server according to the multimedia messages play command that user issues to connect;
Media corresponding with user multimedia messages to be played are obtained by the http session between the server File is described.
3. the multimedia messages of AVS-DASH system according to claim 2 intercut control method, which is characterized in that described Obtaining media information segment to be played includes:
Joined according to the network information of the description of the media information of media information segments multiple in the media description file and client Number, media information segment to be played is obtained by http session.
4. the multimedia messages of AVS-DASH system according to claim 1 to 3 intercut control method, feature exists In,
The media description file is generated by Web Video Service provider, and is stored in one or more http network servers On.
5. a kind of client characterized by comprising
Processing module, for obtaining media information segment to be played from server, and from the media description file obtained in advance It is middle to inquire media information description corresponding with the media information segment;
Control module, if for judging to know in the media information description comprising multithread property parameters, according to the multithread Property parameters control the broadcasting that stream is intercutted in the media information segment, wherein the multithread property parameters specifically include: multithread Intercut type, the inter cut time of multithread and multithread intercut the duration;
The control module is specifically used for:
The group generic attribute parameter in the media information description is inquired, by the video media information with identical group of generic attribute parameter Segment and audio media information segment are divided into one group, are controlled in every group according to the multithread property parameters and are inserted in media information segment Broadcast the broadcasting of stream.
6. client according to claim 5, which is characterized in that the processing module is also used to:
Hypertext transfer protocol HTTP is established with server according to the multimedia messages play command that user issues to connect;
Media corresponding with user multimedia messages to be played are obtained by the http session between the server File is described.
7. client according to claim 6, which is characterized in that the processing module is specifically used for:
Joined according to the network information of the description of the media information of media information segments multiple in the media description file and client Number, media information segment to be played is obtained by http session.
8. a kind of multimedia messages of AVS-DASH system intercut control system characterized by comprising server, Yi Jiru Any client of claim 5-7.
CN201410284776.0A 2014-06-23 2014-06-23 The multimedia messages of AVS-DASH system intercut control method, system and client Expired - Fee Related CN105207976B (en)

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