WO2010115369A1 - Method for rendering media and system, server and terminal thereof - Google Patents

Abstract

The present invention discloses a method for rendering media as well as a system, server and terminal thereof, which belongs to the technical field of communications, wherein the method for rendering media includes: constructing a data packet including media data, wherein the data packet including a difference control parameter; and sending the data packet to a terminal, so as to facilitate the terminal rendering the media data according to the difference control parameter. With the technical scheme provided by the present invention, the difference control can be performed to the media data at the terminal.

Description

 Media presentation method and system, server and terminal

 This application claims the priority of the Chinese Patent Application entitled "Media Presentation Method and System, Server and Terminal" submitted by the Chinese Patent Office on April 7, 2009, with the application number 200910132685.4, and is required to be submitted on June 15, 2009. Submitted to the Chinese Patent Office, Application No. 200910147569.X, the priority of the Chinese patent application entitled "Media Presentation Method and System, Server and Terminal", the entire contents of the two prior application documents are used] In the application. Technical field

 The present invention relates to the field of communications technologies, and in particular, to a media presentation method and system, a server, and a terminal. Background technique

 Scalable Vector Graphics (SVG: Scalable Vector Graphics) is based on Extensible Markup Language

(XML: Extensible Markup Language), a graphical format used to describe two-dimensional vector graphics, where XML is a scripting language. SVG applications can provide flexible business control and description, and can customize a good user-oriented experience. There are three types of graphic objects that can be included in SVG: vector graphics (such as rectangles, lines, etc.), multimedia (such as raster images and video), and text. SVG can group, add styles, and make various transformations such as panning, rotation, and so on. Graphics in SVG can be interactive and dynamic. The application of animation in SVG provides a variety of business scenarios, such as ad timing, logo and banner ads.

In the above applications such as the advertisement timing bar, the logo and the banner advertisement, there are corresponding rendering control requirements for different application scenarios. In an existing media presentation method, the data packet sent by the server includes SVG media data, and after receiving the data packet, the terminal only sequentially presents the SVG media data, that is, all the terminals receive the data packet of the server (the After the data package includes SVG media data, the SVG media data is directly displayed, so that all terminals present the same SVG media data at the same time. In the research on the prior art, the inventor found that: The use of the above media presentation method does not meet the needs of certain services. For example, in the voting service, the effective time of the candidate information broadcast is T, a single complete presentation period. For t, the user can vote after the candidate information is obtained, and the voting result is announced after the time T. For live broadcast services, terminals that access at any time within T, whether unicast or multicast, want to be able to obtain complete candidate information. However, using the above media presentation method, since all terminals present the same media at the same time, the terminal accessed after the start of T is not The candidate information is presented from the beginning, so that the user cannot obtain complete candidate information from the beginning, so the use of the above media presentation method does not satisfy the needs of different users accessing at different times. Summary of the invention

 The embodiments of the present invention provide a media presentation method and system, a server, and a terminal. The technical solution provided by the embodiment of the present invention can implement difference control of media data in a terminal. The embodiment of the present invention is implemented by the following technical solutions: The embodiment of the present invention provides a media presentation method, including:

 Constructing a data packet including media data, the data packet including a difference control parameter;

 Transmitting the data packet to the terminal to facilitate the terminal to present the media data by the difference control parameter.

 The embodiment of the invention provides a media presentation method, including:

 Receiving a data packet including media data, the data packet including a difference control parameter;

 Parsing the data packet to obtain media data; parsing the data packet to obtain a difference control parameter; and presenting the media data according to the difference control parameter.

 An embodiment of the present invention provides a server, including:

 a construction unit, configured to construct a data packet including media data, where the data packet includes a difference control parameter;

 And a sending unit, configured to send, to the terminal, the data packet constructed by the constructing unit, so that the terminal presents the media data according to the difference control parameter.

 The embodiment of the invention provides a terminal, including:

 a receiving unit, configured to receive a data packet including media data, the data packet includes a difference control parameter, a parsing unit, configured to parse the data packet received by the receiving unit, obtain the media data, and parse the data received by the receiving unit Package, obtain the difference control parameters;

 a rendering unit, configured to present the media data according to a difference control parameter obtained by the parsing unit.

The embodiment of the present invention provides a media presentation system, including the server provided by the embodiment of the present invention and/or the terminal provided by the embodiment of the present invention. As can be seen from the foregoing technical solutions provided by the embodiments of the present invention, the terminal can obtain the difference control parameter, so that the terminal can present the media data according to the difference control parameter, thereby implementing the difference control of the media data in the terminal, and satisfying the user for different media data. Different presentation needs.

DRAWINGS

 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other embodiments may be obtained by those skilled in the art without departing from the drawings.

 1 is a schematic flowchart of Embodiment 1 of a media presentation method according to an embodiment of the present invention;

 2 is a schematic flowchart of Embodiment 2 of a media presentation method according to an embodiment of the present invention; FIG. 3 is a schematic flowchart of Embodiment 3 of a media presentation method according to an embodiment of the present invention;

 4 is a schematic structural diagram of a server according to an embodiment of the present invention; FIG. 5 is a schematic structural diagram of a first embodiment of a terminal according to an embodiment of the present invention; and FIG. 6 is a schematic structural diagram of a second embodiment of a terminal according to an embodiment of the present invention.

detailed description

 BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

 The media presentation method provided by the embodiment of the present invention is introduced first. FIG. 1 is a flowchart of a first embodiment of a media presentation method. The embodiment describes a process flow of a server, including:

 101. Construct a data packet including media data, where the data packet further includes a difference control parameter.

 The media data is media data that needs to be presented, and may be media data described by a script language such as SVG media data or SMIL (Synchronized Multimedia Integration Language) media data; the server may be configured from a preset configuration file. The difference control parameter is obtained, and the difference control parameter input by the user can also be received immediately.

The difference control parameter may include at least one of an effective activation period, a presentation mode, and a repetition parameter Specifically, the difference control parameter may be included in the data packet as a media attribute of the script-based media data, or as an upper media attribute of the script-based media data, or as a transmission adaptation parameter of the data packet.

 The effective activation period indicates the effective time of the presentation of the media data, that is, the media data is only presented during the valid activation period. In one embodiment of the invention, the media data is SVG media data, and the effective activation period is represented by validDur in the SVG attribute. validDur can be used as an attribute of SVG media data, which can be applied to all SVG elements, such as <8¥§>, <g> and other SVG elements of the time axis. Alternatively, validDur can also be used as the upper media attribute of SVG media data. When the media description is based on SVG and the SVG description file is used as the payload part of the media description, validDur can be used as the media description header field attribute; of course, when SVG is encapsulated, The media description has additional header field attribute fields. Alternatively, validDur can also be used as a transmission adaptation parameter of the data packet. For example, when SVG media data is encapsulated and transmitted by Real Time Transport Protocol (RTP), validDur can be encapsulated in the RTP header field; Encapsulated transmission using HyperText Transfer Protocol (HTTP), validDur can be encapsulated in the HTTP header field.

 The presentation mode represents the presentation mode of the media data, and the value of the presentation mode is an enumeration value, which may include sequential presentation, or presentation from the beginning, or single presentation from the beginning. In one embodiment of the invention, the media data is SVG media data and the rendering mode is represented by rendMod in the SVG attribute. rendMod can be used as an attribute of SVG media data, which can be applied to all SVG elements, such as <svg>, <g>, and other specific SVG elements with a timeline. rendMod can also be used as the upper media attribute of SVG media data. When the media description is based on SVG and the SVG description file is used as the payload part of the media description, rendMod can be used as the media description header field attribute; of course, when SVG is encapsulated, the media description There are also other header domain attribute fields. The rendMod can also be used as a transmission adaptation parameter of the data packet. For example, when the SVG media data is encapsulated and transmitted by RTP, the rendMod can be encapsulated in the RTP header field; the SVG media data is encapsulated and transmitted by HTTP, and the rendMod can be encapsulated in the HTTP header field. in.

The repetition parameter is a parameter for repeatedly presenting the media data, wherein the repetition parameter may include a repetition number and a repetition period, the repetition number indicates the number of repeated presentations, and the repetition period indicates a period of repeated presentation. In one embodiment of the invention, the media data is SVG media data, and the repeating parameters are in the SVG attribute. It is represented by the number of repetitions ( repeatCount ) and the repetition period ( repeaDur ). repeatCount and repeaDur can be used as attributes of SVG media data, which can be applied to all SVG elements, such as <8¥§> and <§>. repeatCount and repeaDur can also be used as the upper media attributes of SVG media data. When the media description is based on SVG and the SVG description file is used as the payload part of the media description, repeatCount and repeaDur can be used as the media description header field attribute; of course, when the SVG is encapsulated, the media description has other header field attribute fields. The repeatCount and the reverseDur can also be used as transmission adaptation parameters of the data packet. For example, when the SVG media data is encapsulated and transmitted by RTP, the repeatCount and the reverseDur can be encapsulated in the RTP header field; the SVG media data is encapsulated and transmitted by HTTP, repeatCount and repeaDur Can be encapsulated in an HTTP header field.

 102. Send a data packet to the terminal, so that the terminal presents the media data according to the difference control parameter. After the data packet is sent to the terminal, the terminal can present the media data according to the difference control parameter. For example, when the difference control parameter includes a valid activation period, the terminal may present the media data only during the effective activation period; when the difference control parameter includes the repeated parameter, the terminal may repeatedly render the media data according to the repeated parameter, and the number of times of repeated presentation is The value corresponding to the number of repetitions; when the difference control parameter includes the presentation mode, the terminal can present the media data according to the presentation mode.

 As can be seen from the above, the data packet sent by the embodiment to the terminal may include a difference control parameter, so that the terminal can present the media data according to the difference control parameter, and each terminal can present the media data according to the difference control parameter, thereby implementing the difference control of the media data. , to meet the different presentation needs of users for different media data.

 In practical applications, for example, when the advertisement is counted down, the presentation of each terminal should be the same whenever the terminal receives the media data; for example, when presenting the voting service, each terminal can present candidates from the beginning when accessing People information. The first embodiment of the media presentation method provided by the embodiment of the present invention may further include: sending a data type of the media data to the terminal; specifically, carrying the data type of the media data in the data packet including the difference control parameter, or in the media data Describe the data type of the data in the data, and the description data is some description information of the media data, including the length of the media data, the encoding and decoding mode, and the like, and the description data may specifically be metadata.

If the server sends the data type of the media data to the terminal, the server may not send the presentation mode to the terminal, and the presentation mode may be set by the terminal, that is, the presentation mode of the media data set by the terminal with different data types reaches the personalized experience of the user. . For example, the terminal can present in the media data When the advertisement is counted down, the media data is sequentially presented; when the media data is presenting the voting service, the media data is presented from the beginning.

 FIG. 2 is a flowchart of a second embodiment of a media presentation method. The embodiment describes a process flow of the terminal, including:

 201. Receive a data packet including media data, where the data packet further includes a difference control parameter.

 The received data packet is sent by the server. Specifically, after the terminal establishes a link with the server, the terminal receives the data packet sent by the server.

 202. Parse the data packet to obtain media data; parse the data packet to obtain a difference control parameter.

 The difference control parameter obtained by the parsing may include at least one of an effective activation period, a presentation mode, and a repetition parameter.

 Specifically, according to the difference in the form of the difference control parameter in the data packet, the process of parsing the difference control parameter is also different. For example, when the difference control parameter can be used as the media attribute of the script-based media data, the data packet needs to be parsed first. After the script-based media data, the difference control parameters are obtained by parsing from the script-based media data.

 203. Present media data according to the difference control parameter.

 For example, when the difference control parameter includes a valid activation period, the terminal may present the media data only during the effective activation period; when the difference control parameter includes the number of repetitions, the terminal may repeatedly render the media data, and the number of times of repeated presentation is the number of repetitions. When the difference control parameter includes the presentation mode, the terminal may present the media data according to the presentation mode, and may specifically present the media data sequentially, or present the media data from the beginning, or present the media data from the beginning.

 As can be seen from the above, the data packet received by the terminal in this embodiment may include a difference control parameter, so that the terminal can present the media data according to the difference control parameter, and each terminal can present the media data according to the difference control parameter, thereby implementing the media. The difference control of data meets the different presentation requirements of users for different media data.

 FIG. 3 is a flowchart of a third embodiment of the media presentation method. The embodiment describes a process flow of the terminal. The embodiment may obtain a data type of the media data. The embodiment includes:

 301. Receive a data packet including media data, where the data packet includes a difference control parameter.

302. Parse the data packet to obtain media data; parse the data packet to obtain a difference control parameter. The difference control parameters obtained by the analysis may include valid activation periods and/or repetition parameters. This step can be performed with reference to 202.

 303. Obtain a data type of the media data.

 Specifically, the data type of the media data can be parsed from the received data packet; the data type of the media data can also be parsed from the description data of the media data.

 304. Select a presentation mode according to the data type of the media data.

 The presentation mode is preset, and different presentation modes can be set according to different data types. For example, when the media data presents an advertisement timing bar, the presentation mode of the media data may be set to be sequentially presented; when the media data presents a voting service, the presentation mode of the media data may be set to be presented from the beginning.

 305. Present media data according to the difference control parameter obtained by the parsing and the selected presentation mode. As can be seen from the above, the data packet received by the terminal in this embodiment may include a difference control parameter, so that the terminal can present the media data according to the difference control parameter, and each terminal can present the media data according to the difference control parameter, thereby implementing the media. The difference control of the data satisfies the different presentation needs of the user for different media data; and the presentation mode of the media data of different data types can be set by the user according to his own needs, so that the media data presented by the terminal is completely according to the user's settings. Presentation, further satisfying the different presentation requirements of users for different media data.

 Embodiment 4 of the media presentation method provided by the embodiment of the present invention is as follows (this embodiment implements difference control of script-based media data by a server, and the script-based media data in this embodiment is SVG media data):

 A1, A2, and A3 are three animations that follow the SVG syntax. A1, A2, and A3 are described in the SVG syntax. They are deployed in live multicast services with an effective activation period of T. For example, SVG media data presents a banner advertisement. SVG media data is assumed to start from the TO time, and is played until the T2 time, then T=T2-T0; Al, Α2 and A3 are completely rendered in the period of t; SVG media data The number of repeated plays is 2 times, and the shell 'j T = 2t. The SVG media data is completely presented for the first time from the time of TO to the time of T1, and the second time is completely presented from the time of T1 to the time of T2.

In order to ensure the random access of the user, a random access point (RAP: Random Access Point) is set at the TO' time (between the time from the TO time and the time T1) and the time (between the time T1 and the time T2). Send redundant packets at random access points. When implementing the corresponding service scenario, the embodiment may include the following difference control parameters:

(1) validDur, identifies the valid activation period T. The validDur data format can be the same as the rendering period <dur> in SVG parameters, except that validDur is used to describe the effective activation period of SVG media data. The effective activation period can be greater than, or less than, or equal to the rendering period. The portion of the presentation period that is within the effective activation period can be presented. If the presentation period <dur> of an svg element is equivalent to its valid activation period, the effective period can be implicitly described by the presentation period <dur>.

 (2) rendMod, which identifies the rendering mode of the SVG media data, the data type is an enumeration value, the enumeration value may include a sequential presentation (inOrder), the terminal and the server share a time axis, sequentially presented from the access time; or include a de novo Rendering (fromBegin), rendered in the terminal timeline, rendering SVG media data from scratch when the condition is met; or including a single presentation from the beginning (fromBeginforOne), which differs from fromBegin in that it only presents a single time for circular SVG media data. Among them, you can set any one of sequential presentation, de novo presentation and single-shot presentation as the default value of rendMod. After determining the default value, rendMod can also not carry parameter values. When rendMod does not carry parameter values, the terminal can directly Process by default.

 The difference control parameters are described as the attributes of the SVG media data, or the upper media attributes of the SVG media data, or the transmission adaptation parameters of the data packets, respectively.

1. Assuming that the difference control parameter is an attribute of the SVG media data, the difference control parameter exists.

 First introduce the media data sent by the server at different times.

 (1) The media data sent by the server at the time of TO can be as follows:

 <svgMedia>

<svg id="svgl " validDur=* ⁿ rendMod="inOrder" repeatCount= ⁿ 2"> //

 <animation id="Al " begin="0" dur="tl *'...>

 <animation id="A2" begin=" 1 " dur="t2"...>

 <animation id="A3" begin='O.l " dur="t3 *'...>

 </svg>

</svgMedia> Where svg id="svgl" indicates that the SVG media data to be rendered is the SVG media data identified as svgl; validDur="T" indicates that the effective activation period of the SVG media data is T; rendMod="inOrder" indicates the SVG media data The rendering mode is sequential rendering; repeatCount="2" indicates that the SVG media data needs to be rendered twice. Animation id="Al "begin="0"dur="tl"Describe one of the animations of SVG media data, A1 is rendered from time 0, the rendering period is tl; animation id="A2"begin=" 1 " duF "t2" describes one of the animations A2 of the SVG media data, A2 is rendered from 1 o'clock, the rendering period is t2; animation id="A3"begin='Ordur="t3" describes one of the animations A3 of the SVG media data, A3 is presented from time 0.1, and the presentation period is t3.

For the value of the rendering mode rendMod, you can set the order to be the default value, that is, the rendMod="inOrder" attribute is optional. If there is no such attribute, it can also represent the sequential presentation; from the beginning, then rendMod="fromBegin"; , 贝' j fromBeginforOne ₀

 <svgMedia Depending on the application, it can be Dynamic and Interactive Multimedia Scenes (DIMS), Timed Graphics (TG) or others. <svgMedia For <svg^, the upper-layer media representation of the armor can be implemented by media description, or can be implemented by transmission adaptation, or by both.

 (2) The media data sent by the server at the time of TO' can be as follows:

 <svgMedia>

 <svg id="svgl " currentSceneTime="T0'-T0" validDur="T" rendMod="inOrder" repeatCount="2">

<animation id="Al "

 <animation id="A2" begin=" l " duF"t2"...>

 <animation id="A3" begin="0.1" dur="t3 *'...>

 </svg>

 </svgMedia

The media data sent by the server at the time of TO' is redundant transmission data, which is used for random access of the terminal. The difference from the media data at time T0 is only the use of the currentSceneTime attribute, and the currentSceneTime attribute is used to describe the current presentation state of the SVG media data. , currentSceneTime="T0'-T0" represents the time offset of the SVG media data presented at TO' time.

(3) The media data sent by the server at time T1' can be as follows:

 The media description is the random access point RAP1. The media data sent by the server at time T1' is similar to the media data sent by the server at the time of TO'. The difference is that the value of currentSceneTime is "ΤΓ-Τ0" at this moment, indicating SVG. The time offset of the media data presented at time T1'.

 (4) Since the SVG media data is twice rendered at time T2 and the effective activation period of the SVG media data has been reached, the SVG media data presentation ends.

 The media processing of the terminal accessed at each moment is introduced.

 (1) Media processing of the terminal accessed at the time of TO:

 The terminal can receive the media data at the time of the TO, and sequentially render the data according to the sequence of the media data.

SVG media data until time T2;

 (2) Media processing of the terminal accessed after the TO time to the TO' time (including the TO' time): The terminal can receive the media data of the TO' time RAP0, if the presentation mode is sequential presentation; for example, the SVG media data is presented. It is an advertisement timing bar, and the SVG media data is sequentially presented from the TO' of the SVG media data until the T2 time, where currentSceneTime is used to calculate the offset of the element having the time axis. For example, SVG media data presents a banner advertisement, which can display the [currentSceneTime, Tl -TO] part and the second pass of the first pass of the banner advertisement;

 If the rendering mode is rendered from scratch, the SVG media data is rendered from the beginning of the SVG media data until the valid period arrives. Where currentSceneTime is used to calculate the offset of the element with the time axis, which can be used to calculate the remaining valid activation period of the media presentation as T-currentSceneTime. For example, SVG media data presents a corner advertisement that can present the 1st and 2nd passes of the banner advertisement.

[0, T-(T 1 -το)-(το'-το)] part;

 If the rendering mode is a single presentation from the beginning, for example, the SVG media data presents a loop information reminder, the SVG media data is rendered from the beginning of the SVG media data until the full rendering, where currentSceneTime is invalid for calculating the offset of the element with the time axis, The remaining valid activation period that can be used to calculate the media presentation is T-currentSceneTime. The terminal is able to present the first pass of the banner advertisement.

(3) media processing of the terminal accessed after the TO' time to the ΤΓ time (including the ΤΓ time): the terminal can receive the media data of the RAP RAP1; If the presentation mode is sequential presentation, the SVG media data is sequentially presented from the beginning of the SVG media data until the T2 time, where currentSceneTime is used to calculate the offset of the element with the time axis. For example, SVG media data presents a banner advertisement, which can present the second pass of the banner advertisement [currentSceneTime-(T 1 -Τ0), Τ2-Τ1'];

 If the rendering mode is rendered from scratch, the SVG media data is rendered from the beginning of the SVG media data until the valid period arrives. Where currentSceneTime is invalid for calculating the offset of the element with timeline, it can be used to calculate the remaining valid activation period of the media presentation as T-currentSceneTime. For example, SVG media data presents a banner ad that can present the [0, T-currentSceneTime] portion of the first pass of the banner ad;

 If the rendering mode is a single presentation from scratch, the SVG media data is rendered from the beginning of the SVG media data until the full rendering, where currentSceneTime is invalid for calculating the offset of the element with the timeline, and the remaining valid activation period for calculating the media presentation is T-currentSceneTime. For example, SVG media data presents a banner ad that can present the [0, T-currentSceneTime] portion of the first pass of the banner ad. The terminal accessed during this period can only receive the redundant data sent by RAP1 for presentation, so the effective activation period is not enough to completely present the SVG media data once. The presentation mode is the same as the presentation result of the single presentation from the beginning. of.

 (4) Media processing of the terminal accessed after the ΤΓ time:

 Since there is no RAP setting, the terminal cannot receive media data, so the SVG media data cannot be presented.

 2. Assuming the difference control parameter is the upper media attribute of the SVG media data, the difference control parameter exists in the upper media attribute of the SVG media data.

 First introduce the media data sent by the server at different times.

 (1) The media data sent by the server at the time of TO can be as follows:

<svgMedia validDur=* ⁿ rendMod="inOrder" repeatCount= ⁿ 2">

<svg id- 'svgl ⁿ ...>

 <animation id="Al " begin="0" dur="tl *'...>

 <animation id="A2" begin="l " dur="t2"...>

<animation id="A3"begin='Ol"dur="t3*'...> </svg>

 </svgMedia>

 The difference control parameter exists in <svg>, and the difference control parameter as the upper media attribute of the SVG media data differs in that the difference control parameter exists in <svgMedia, and the media data of the difference control parameter are the same, at this time <svgMedia for <svg> The encapsulation can be implemented by media data or by adding transmission adaptation parameters.

 (2) The media data sent by the server at TO' and ΤΓ is basically the same as the media data when the difference control parameter exists in <svg>, except that the difference control parameter exists in <svgMedia.

 (3) Since the SVG media data has been twice rendered at time T2, and the effective period of the SVG media data has been reached, the SVG media data presentation ends.

 The media processing of the access terminal at each moment is basically the same as the media processing of the terminal when the difference control parameter exists in <svg>, except that the terminal reads the difference control parameter from <svgMedia 。.

 3. Assume that the difference control parameter is used as the transmission adaptation parameter of the data packet.

 First introduce the media data sent by the server at different times.

 (1) The media data sent by the server at the time of TO can be as follows:

 <svgMedia>

 <svg id="svgl" ..·>

 <animation id="Al" begin="0" dur="tl *'...>

 <animation id="A2" begin="l" dur="t2"...>

<animation id="A3" begin= ⁿ 0.1"dur="t3*'...>

 </svg>

 </svgMedia>

 t<SVg>: When 3⁄4 lines are used for loading, ^^^^ is optional. ^There is no <8¥§^16(113, <SVg>^ The upper layer media description can increase the parameter field when the transmission is adapted, and carry the difference control parameter through the added parameter field, that is, the difference control parameter can be used as the transmission adaptation layer parameter. For example, when the SVG media data is encapsulated and transmitted by RTP, the difference control parameter may be encapsulated in the RTP header field; when the SVG media data is encapsulated and transmitted by HTTP, the difference control parameter may be encapsulated in the HTTP header field.

An implementation of the present invention when the difference control parameter is encapsulated in the RTP header field as a transmission adaptation parameter For example, the input adaptation parameters included in the RTP header field are shown in Table 1.

Table 1

 The Dur logo presentation period describes the complete presentation period of the SVG media data; Dur can be passed through the transmission adaptation parameter, or can be passed through <8¥§> or internal related element description.

 validDur identifies the effective activation period of SVG media data.

 rendMod identifies the rendering mode of SVG media data;

 repeatCount/repeatDur identifies the number of times the SVG media data is rendered and the effective time. The repeatCount/repeatDur will only take effect in the validDur range. For example, 杲 repeatDur<validDur , the effective time of the SVG media data loop can only be validDur; if repeatDur>=validDur, the valid time of the SVG media data loop can only be repeatDur.

 (2) The media data sent by the server at the time of TO' and T1' is basically the same as the media data sent by the server at the corresponding moment when the difference control parameter exists in <svg>, except that the difference control parameter is used as the transmission adaptation parameter.

 (3) SVG media data has been rendered twice at time T2, and the effective period of SVG media data has been reached, and the presentation of SVG media data is over.

 The media processing of the access terminal at each moment is basically the same as the media processing of the terminal when the difference control parameter exists at <svg> at the corresponding moment, except that the terminal reads the difference control parameter from the transmission adaptation layer.

 The fifth embodiment of the media presentation method provided by the embodiment of the present invention is as follows (this embodiment implements difference control of script-based media data by the server and the terminal, and the script-based media data in this embodiment is SVG media data):

 This embodiment is basically the same as the fourth embodiment of the media presentation method, and the difference is:

The attribute contentType is required to represent the data type of the SVG media data. Specifically, the same type of media data can be classified according to the characteristics of the content, and the data type is an enumeration. In an embodiment provided by the present invention, the SVG media data can be classified as follows: closely synchronized with other media, such as an advertisement timing bar, etc., the media content of the type can only be sequentially presented; can be independently controlled independently of other media streams. Type, such as corner advertising, etc., this type of media data can be personalized to configure the presentation mode, such as Presentation from the beginning, sequential presentation, single presentation from the beginning, etc.

 The server may send the data packet including the contentType to the terminal, and may specifically send the contentType through the data packet including the SVG media data, or send the contentType through the description data of the SVG media data.

 After receiving the data packet including the contentType, the terminal selects the presentation mode according to the contentType. For example, when the received SVG media data is not independently controllable from other media streams (ie, closely synchronized with other media), the selected presentation mode may be sequential presentation, and the terminal may combine the difference control parameters included in the data packet. SVG media data is presented sequentially. When the received SVG media data is independently controllable from other media streams, the selected presentation mode may be presented from the beginning, and the terminal may present the SVG media data from the beginning in combination with the difference control parameters included in the data packet.

 The sixth embodiment of the media presentation method provided by the embodiment of the present invention is as follows (this embodiment implements the difference control of the media data by the server, and the media data in this embodiment is not limited to the script-based media data):

 A1 is an animation that follows the SVG syntax, A2 is the corresponding subtitle part, A3 is a plurality of pictures, A1 is described by the SVG syntax, A2 uses Timed Text for content transmission, and A3 is HTTP. Downloading, A1, A2 and A3 are combined to form a completed media content that is deployed in the live multicast service with an effective activation period of T. For example, the SVG media data presents a corner advertisement, assuming that the media data starts playing from the TO time and continues to play until the T2 time, and the ij T T = T2 - T0; the complete presentation period of Al, A2 and A3 is t; the repetition of the media data The number of plays is 2 times, then T = 2t, the media data is completely presented for the first time from TO time to Tl time, and the second time is completely presented from time T1 to time T2.

 In order to ensure the random access of the user, a random access point (RAP: Random Access Point) is set at the TO' time (between the time from the TO time and the time T1) and the time (between the time T1 and the time T2). Send redundant packets at random access points.

 When implementing the corresponding service scenario, the embodiment may include the following difference control parameters:

(1) validDur, identifies the valid activation period T. The validDur data format can be the same as the presentation period <^11>, except that validDur is used to describe the effective activation period of the media data, and the effective activation period can be greater than, or less than, or equal to the presentation period. The portion of the presentation period that is within the effective activation period can be presented. If the presentation period <dur> is equivalent to its effective activation period, the effective activation period can be described by the presentation period <durHI±. a special value of validDur can indicate that there is The activation cycle is uncertain and the relevant media content is valid until the new media content is received.

(2) rendMod, which identifies the presentation mode of the media data, the data type is an enumeration value, the enumeration value may include a sequential presentation (inOrder), the terminal and the server share a time axis, sequentially presented from the access time; or include presentation from the beginning (fromBegin ), rendered in the terminal timeline, rendered media data from scratch when the condition is met; or includes a single presentation from the beginning (fromBeginforOne), which differs from fromBegin in that it only renders a single time for circular media data. Wherein, any one of the sequential presentation, the de novo presentation, and the single presentation can be set as the default value of the rendMod. After determining the default value, the rendMod can also not carry the parameter value. When the rendMod does not carry the parameter value, the terminal can directly Process by default.

 (3) Repeating parameters, including repeatCount and repeaDur, respectively identifying the number of repetitions and the repetition period, the number of repetitions indicating the number of repeated presentations, and the repetition period indicating the period of repeated presentation.

 The above parameters can be used as transmission adaptation parameters of the data packet. For example, when SVG media data A1 and text media data A2 are encapsulated and transmitted by RTP, the above parameters are encapsulated in the RTP header field; the picture media data A3 is encapsulated and transmitted by HTTP, as above. The parameters are encapsulated in the HTTP header field.

 First introduce the media data sent by the server at different times.

 (1) The media data sent by the server at time TO can be as follows:

 Media content of A1:

 <svgMedia>

 <svg id="svgl" .. ·>

 <animation id="Al " begin="0" dur="tl "..·>

 </svg>

 </svgMedia>

 A2's media content: A complete text string.

 A3's media content: Individual image files.

The media content adds a parameter field when the transmission is adapted, and the difference control parameter carries the difference control parameter, that is, the difference control parameter can be valid as the transmission adaptation layer parameter. When the media data is encapsulated and transmitted by RTP, for example, the transmission of the A1 and A2 media content, the difference control parameter may be encapsulated in the RTP header field; when the media data is encapsulated and transmitted by HTTP, for example, the transmission of the A3 media content, The difference control parameters can be encapsulated in the HTTP header field.

 When the difference control parameter is encapsulated in the RTP header field as the transmission adaptation parameter, in an embodiment of the present invention, the RTP header field includes the transmission adaptation parameters as shown in Table 1.

Table 1

 Wherein, the Dur logo presentation period describes the complete presentation period of the media data; Dur can be transmitted by transmitting the adaptation parameters.

 validDur identifies the effective activation period of the media data;

 rendMod identifies the rendering mode of the media data;

 repeatCount/repeatDur identifies the number of times the SVG media data is rendered and the effective time. The repeatCount/repeatDur will only take effect in the validDur range, such as 杲 repeatDur<validDur , the valid time of the SVG media data loop is validDur; if repeatDur>=validDur, the valid time of the SVG media data loop is repeatDur.

 (2) The media data sent by the server at the time of TO' and T1', as follows:

 Media content of A1:

 <svgMedia>

<svg id="svgl"currentSceneTime="t"validDur="T"rendMod="inOrder" repeatCount= ⁿ 2">

 <animation id="Al " begin="0" dur="tl *'...>

 </svg>

 </svgMedia>

 Where TO' time, t=T0'-T0; Tl' time, t=Tl'-T0.

 A2's media content: A complete text string.

 A3's media content: Individual image files.

 As described above, the difference control parameter is used as the transmission adaptation parameter.

(3) The media data has been completed twice at time T2, and the effective period of the media data has been Upon reaching, the presentation of the media data ends.

 The media processing of the access terminal at each moment is basically the same as the media processing of the terminal when the difference control parameter exists in <svg> in the fourth embodiment at the corresponding moment, except that the terminal reads the difference control parameter from the transmission adaptation layer.

 The seventh embodiment of the media presentation method provided by the embodiment of the present invention is as follows. This embodiment implements the difference control of the media data by the server and the terminal. In this embodiment, the media data is not limited to the SVG media data.

 This embodiment is basically the same as the sixth embodiment of the media presentation method, and the difference is:

 The attribute contentType is required to represent the data type of the media data. Specifically, the same type of media data can be classified according to the characteristics of the content, and the data type is an enumeration. In an embodiment provided by the present invention, the media data may be classified as follows: closely synchronized with other media, such as an advertisement timing bar, etc., the media content of the type can only be sequentially presented; independently independent of other media streams. Such as the banner advertisement, etc., the type of media data can be personalized to the presentation mode, such as presentation from the beginning, sequential presentation, single presentation from the beginning, and the like.

 The server may send the data packet including the contentType to the terminal, and may specifically send the contentType through the data packet including the media data, or send the contentType through the description data of the media data.

 After receiving the data packet including the contentType, the terminal selects the presentation mode according to the contentType. For example, when the received media data is not independently controllable from other media streams (ie, closely synchronized with other media), the selected presentation mode may be sequential presentation, and the terminal may combine the difference control parameters included in the data packet. The media data is presented sequentially. When the received media data is independently controllable from other media streams, the selected presentation mode may be presented from the beginning, and the terminal may present the media data from the beginning in conjunction with the difference control parameters included in the data packet.

 The eighth embodiment of the media presentation method provided by the embodiment of the present invention is as follows (this embodiment implements the difference control of the media data by the server, which is a comparative image business example):

 In the football match, historically key information is provided to all random access users in the same media stream through differentiated control. For example, in the match between team A and team B, there are the following key events:

Key Event 1: In the 10th minute, the team A1 scored a goal; Key Event 2: The B team player B1 gets a red card in the 30th minute;

 Key Event 3: 80th minute A team player A1 scored another goal.

 Therefore, the user content presentation requirements for access at different times are as follows:

 Users who access before the 10th minute, watch the game in sequence;

 Users accessing between the 10th and 30th minutes can get key events at the time of access

1 information, and sequentially watch subsequent game shows;

 The user accessing between the 30th minute and the 80th minute can obtain the information of the key event 1 + key event 2 at the access time, and sequentially watch the subsequent game program;

 The user who accesses between the 80th minute and the end of the game can obtain the key event 1 + key event 2 + key event 3 information at the time of access, and sequentially watch the subsequent game program.

 In order to meet the user's need for the integrity of critical events, differentiated presentation control of key events. The collection of historical key events at each moment is called a key event set. In this embodiment: the first key event set is generated in the 10th minute, and the effective activation period is a special value indicating that the uncertainty is 0, because the subsequent key events are unpredictable, that is, the update time of the key event set is unpredictable, and The actual effective activation period continues until a new key event occurs, that is, a new key event is generated in the 30th minute in this embodiment, and the media server performs key event media data update;

 In the 30th minute, a new key event occurs. The new key event set replaces the existing key event set. The effective activation period of the old key event set ends. The effective activation period of the new key event set indicates that the special value is uncertain. 0, for the same reason, because subsequent key events are unpredictable;

 In the 80th minute, a new key event occurs, and the new key event set replaces the existing key event set and continues until the end of the game.

 Each of the above key event sets needs to access the terminal at each moment within its effective activation period, and only needs to perform a single presentation according to the read difference control parameter.

 The server provided by the embodiment of the present invention is further introduced. FIG. 4 depicts the structure of the server embodiment, including:

 a construction unit 401, configured to construct a data packet including media data, where the data packet includes a difference control parameter;

The sending unit 402 is configured to send, to the terminal, a data packet constructed by the constructing unit 401, so as to facilitate the terminal. The media data is presented according to the difference control parameters.

 As can be seen from the above, in the embodiment, the data packet sent by the server to the terminal may include a difference control parameter, so that the terminal can present the media data according to the difference control parameter, thereby implementing the difference control of the media data, and satisfying the different presentation of the different media data by the user. demand.

 Further, in one embodiment of the invention, the data packet constructed by the construction unit 401 further includes the data type of the media data.

 Further, in an embodiment of the present invention, the sending unit 402 is further configured to send, to the terminal, description data including a data type of the media data.

 The data type of the media data is sent to the terminal, so that the terminal can select the corresponding presentation mode according to the data type of the media data, and then present the media data according to the selected presentation mode, further satisfying the different presentation requirements of the user for different media data.

 The terminal provided by the embodiment of the present invention is further described. FIG. 5 illustrates the structure of the third embodiment of the terminal, including: a receiving unit 501, configured to receive a data packet including media data, where the data packet includes a difference control parameter;

 The parsing unit 502 is configured to parse the data packet received by the receiving unit 501, obtain media data, and parse the data packet received by the receiving unit 501 to obtain a difference control parameter.

 The presentation unit 503 is configured to present the media data according to the difference control parameter obtained by the parsing unit 502. As can be seen from the above, in the embodiment, the data packet received by the terminal may include a difference control parameter, so that the terminal can present the media data according to the difference control parameter, thereby implementing the difference control of the media data, and satisfying different presentation requirements of the user for different media data.

 Figure 6 depicts the structure of the fourth embodiment of the terminal, including:

 The receiving unit 601 is configured to receive a data packet including media data, where the data packet includes a difference control parameter and a data type of the media data;

 In another embodiment of the present invention, the data type of the media data may also be included in the description data, and the receiving unit 601 may be further configured to receive the description data of the data type including the media data.

The parsing unit 602 is configured to parse the data packet received by the receiving unit 601, obtain the media data, parse the data packet received by the receiving unit 601, obtain the difference control parameter, and parse the data packet received by the receiving unit 601 to obtain the data type of the media data. The selecting unit 603 is configured to select a presentation mode of the media data according to the data type obtained by the parsing unit 602.

 Alternatively, in another embodiment of the present invention, the selecting unit 603 may also select a presentation mode of the media data in the data type in the description data received by the receiving unit 601.

 The presentation unit 604 is configured to present the media data according to the difference control parameter obtained by the parsing unit 602 and the presentation mode acquired by the selecting unit 603.

 As can be seen from the above, in the embodiment, the data packet received by the terminal may include a difference control parameter, so that the terminal can present the media data according to the difference control parameter, thereby implementing the difference control of the media data, and satisfying different presentation requirements of the user for different media data; And the user can set the presentation mode in the terminal according to the needs of the user, so that the media data presented by the terminal is completely presented according to the presentation mode set by the user, and further satisfies the different presentation requirements of the user for different media data.

 The embodiment of the present invention further provides a media presentation system, which includes the server provided by the embodiment of the present invention and/or the terminal provided by the embodiment of the present invention.

 A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium, the program When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM). The media presentation method and system, the server and the terminal provided by the embodiments of the present invention are described in detail above. The description of the above embodiments is only for helping to understand the method and the idea of the present invention. Meanwhile, for those skilled in the art, The present invention is not limited by the scope of the present invention.

Claims

Rights request

 A media presentation method, comprising:

 Constructing a data packet including media data, the data packet including a difference control parameter;

 Transmitting the data packet to the terminal to facilitate the terminal to present the media data by the difference control parameter.

 2. The media presentation method of claim 1, wherein the difference control parameter comprises an active activation period to facilitate presentation of the media data by the terminal during the active activation period.

 3. The media presentation method according to claim 1, wherein the difference control parameter comprises a repetition parameter, so that the terminal repeatedly presents the media data according to the repeated parameter.

 The media presentation method according to any one of claims 1 to 3, wherein the constructed data packet further includes a data type of the media data; or

 Transmitting, by the description data of the media data, a data type of the media data to the terminal.

The media presentation method according to any one of claims 1 to 3, wherein the difference control parameter comprises a presentation mode, so that the terminal presents the media data according to the presentation mode.

 6. The media presentation method of claim 5, wherein the presentation mode comprises sequential presentation, or presentation from scratch, or single presentation from the beginning.

 The media presentation method according to any one of claims 1 to 3, wherein the difference control parameter is used as a media attribute of script-based media data, or as an upper media attribute of script-based media data, or as The transmission adaptation parameter of the data packet.

 8. A media presentation method, comprising:

 Receiving a data packet including media data, the data packet including a difference control parameter;

 Parsing the data packet to obtain media data; parsing the data packet to obtain a difference control parameter; and presenting the media data according to the difference control parameter.

The media presentation method according to claim 8, wherein the difference control parameter comprises a valid activation period, and the presenting the media data according to the difference control parameter comprises: presenting in the valid activation period The media data.

The media presentation method according to claim 8, wherein the difference control parameter includes a repetition parameter, and the presenting the media data according to the difference control parameter includes:

 The media data is repeatedly presented according to the repeated parameters.

 The media presentation method according to any one of claims 8 to 10, wherein before the presenting the media data according to the difference control parameter, the method further comprises:

 Determining a data type of the media data;

The presenting the media data according to the difference control parameter includes:

 The media data is presented in accordance with the difference control parameters included in the data packet and the selected presentation mode.

 The media presentation method according to claim 11, wherein the determining the data type of the media data comprises:

 Obtaining a data type of the media data from the parsing of the data packet; or

 A data type of the media data is obtained from the description data of the media data.

 The media presentation method according to any one of claims 8 to 10, wherein the difference control parameter comprises a presentation mode, and the presenting the media data according to the difference control parameter comprises:

 The media data is presented according to the presentation mode.

 14. A server, comprising:

 a construction unit, configured to construct a data packet including media data, where the data packet includes a difference control parameter;

 And a sending unit, configured to send, to the terminal, the data packet constructed by the constructing unit, so that the terminal presents the media data according to the difference control parameter.

 The server according to claim 14, wherein the data packet constructed by the construction unit further includes a data type of the media data.

 The server according to claim 14, wherein the sending unit is further configured to send, to the terminal, description data including a data type of the media data.

17. A terminal, comprising: a receiving unit, configured to receive a data packet including media data, the data packet includes a difference control parameter, a parsing unit, configured to parse the data packet received by the receiving unit, obtain the media data, and parse the data received by the receiving unit Package, obtain the difference control parameters;

 a rendering unit, configured to present the media data according to a difference control parameter obtained by the parsing unit.

 The terminal according to claim 17, wherein the receiving unit is further configured to receive description data including a data type of the media data;

 The terminal further includes a selecting unit, configured to select a presentation mode of the media data according to the data type;

 The presentation unit is configured to present the media data according to a difference control parameter obtained by the parsing unit and a presentation mode selected by the selection unit.

 The terminal according to claim 17, wherein the parsing unit is further configured to parse the data type of the media data from the data packet;

 The terminal further includes a selecting unit, configured to select a presentation mode of the media data according to the data type;

 The presentation unit is configured to present the media data according to a difference control parameter obtained by the parsing unit and a presentation mode selected by the selection unit.

 A media presentation system, comprising: the server according to any one of claims 14 to 16;

 and / or

 A terminal as claimed in any one of claims 17 to 19.