CN101389002B - Method, apparatus and system for IPTV system live program addressing, address analysis - Google Patents
Method, apparatus and system for IPTV system live program addressing, address analysis Download PDFInfo
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Abstract
The embodiment of the invention discloses a method, a device, and a system for addressing and address resolution for live programs in an IPTV system, which relates to the field of communication technology and is invented for solving the problem that the prior art is unable to accurately position certain particular program in a live channel of the IPTV system. The method provided by the embodiment of the invention comprises the steps of: sending a location resolution request to an address resolution apparatus with the location resolution request carrying a program identifier; receiving a positioning mark returned by the address resolution apparatus with the positioning mark comprising channel information and program information corresponding to the program identifier; resolving the positioning mark to obtain the channel information and the program information. The method, the device and the system provided by the embodiment of the invention are suitable for positioning certain particular program in a live channel of the IPTV system.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method, a device and a system for addressing live programs and analyzing live program addresses in an IPTV system.
Background
Internet Protocol Television (IPTV) is a new technology using broadband cable Television network, computer internet and communication network. The IPTV service is usually implemented based on an IP Multimedia Subsystem (IMS), so as to fully utilize existing mechanisms such as session control and establishment in the IMS network, and provide interactive Multimedia services such as a streaming media service, a service of merging streaming media and a real-time session, and the like for a user.
If a user wants to join a certain live channel when watching a live program of an IPTV, the current specification is to first obtain a channel identifier of the live channel, and then obtain a corresponding channel according to the channel identifier.
However, if a user wants to watch a specific program in a live channel of the IPTV system, it is difficult to directly acquire the program.
Disclosure of Invention
Embodiments of the present invention provide a method, an apparatus, and a system for addressing and analyzing a live program in an IPTV system, which can accurately locate a specific program in an IPTV live channel.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
a method for addressing live programs in an IPTV system comprises the following steps:
sending a position analysis request to address analysis equipment, wherein the position analysis request carries a program identifier;
receiving a locator returned by the address resolution equipment, wherein the locator comprises channel information and program information corresponding to the program identifier, and the channel information is used for addressing a live channel;
and analyzing the locator to obtain the channel information and the program information.
A method for analyzing the address of a live program in an IPTV system comprises the following steps:
receiving a position analysis request sent by a terminal, wherein the position analysis request carries a program identifier;
determining a locator corresponding to the program identifier, wherein the locator comprises channel information and program information, and the channel information is used for addressing a live channel;
sending the locator to the terminal; or selecting a locator and sending the program content corresponding to the selected locator to the terminal.
A program terminal, comprising:
the sending module is used for sending a position analysis request to the address analysis equipment, wherein the position analysis request carries a program identifier;
a receiving module, configured to receive a locator returned by the address resolution device, where the locator includes channel information and program information corresponding to the program identifier, and the channel information is used for addressing a live channel;
and the analyzing module is used for analyzing the locator to obtain the channel information and the program information.
An address resolution device, comprising:
the receiving module is used for receiving a position analysis request sent by a terminal, wherein the position analysis request carries a program identifier;
a determining module, configured to determine a locator corresponding to the program identifier, where the locator includes channel information and program information, and the channel information is used for addressing a live channel;
and the sending module is used for sending the locator to the terminal or sending the program content corresponding to the selected locator to the terminal under the condition that one locator is selected.
An IPTV system comprises a program terminal and an address resolution device; wherein,
the program terminal is configured to send a location resolution request carrying a program identifier to the address resolution device, receive a locator returned by the address resolution device, where the locator includes channel information and program information corresponding to the program identifier, and resolve the locator; the channel information is used for addressing live channels;
the address resolution equipment is used for receiving the position resolution request sent by the program terminal, determining a locator corresponding to the program identifier and sending the locator to the program terminal; or selecting one of the locators and sending the program content corresponding to the selected locator to the program terminal.
In the method, the device and the system for addressing and analyzing the live program in the IPTV system provided by the embodiment of the invention, the terminal sends the program identifier corresponding to the program which the user wants to watch to the address analyzing equipment through the position analyzing request, the address analyzing equipment determines the locator corresponding to the program identifier and sends the locator to the terminal, wherein the locator comprises the channel information and the program information which are corresponding to the program identifier and used for describing the program address; or, the address resolution device selects one of the locators after determining the locators corresponding to the program identifiers, and directly sends the program content corresponding to the selected locator to the terminal.
Drawings
Fig. 1 is a flowchart of a method for addressing live programs in an IPTV system according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for resolving an address of a live program in an IPTV system according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for addressing and address resolution of a live program according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for addressing and address resolution of a live program according to a second embodiment of the present invention;
fig. 5 is a flowchart of a method for addressing and address resolution of a live program according to a third embodiment of the present invention;
fig. 6 is a flowchart of a method for addressing and address resolution of a live program according to a fourth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a program terminal according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an address resolution device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an IPTV system according to an embodiment of the present invention.
Detailed Description
In order to accurately position a specific program in a live channel of an IPTV system, the embodiment of the invention provides a method, a device and a system for addressing and address resolution of the live program in the IPTV system. The following describes in detail a method, an apparatus, and a system for addressing and address resolution of a live program in an IPTV system according to an embodiment of the present invention with reference to the drawings.
As shown in fig. 1, a method for addressing a live program in an IPTV system provided in an embodiment of the present invention specifically includes the following steps:
the terminal can be a personal computer, or a Set Top Box (STB) + a common television; the program Identifier may be a Content Reference Identifier (CRID) defined in a television Anytime (TV Anytime), or may be other identifiers capable of identifying a program.
wherein the channel information is used for addressing live channels; the program information may include one or more of program playing time, program version, whether to charge, whether to realize high definition, and the like, and mainly provides a judgment condition for a user to select and watch a program in a live channel. Of course, the program information is not limited to the above information and may include other information.
And step 13, the terminal analyzes the locator to obtain the channel information and the program information.
In the method for addressing the live program in the IPTV system provided by the embodiment of the invention, the terminal sends a position analysis request to the address analysis equipment, and then receives the locator returned by the address analysis equipment, wherein the locator comprises channel information and program information corresponding to the program which the user wants to watch. In this way, the user can know which live channels have programs that the user wants to watch, and also clearly know that the programs that the user wants to watch appear at specific positions (for example, specific playing time) of the live channels.
As shown in fig. 2, the method for resolving the address of the live program in the IPTV system provided in the embodiment of the present invention specifically includes the following steps:
Wherein, the address resolution device can be located at a user terminal, such as a set-top box; or may be a Service Selection Function (SSF) entity or a Service Control Function (SCF) entity located at the network side; or may be a separate functional entity.
The method for analyzing the address of the live program in the IPTV system, provided by the embodiment of the invention, comprises the steps of firstly determining a locator corresponding to a program identifier carried in a position analysis request, wherein the locator comprises channel information and program information, then sending the locator to a user terminal, or selecting a locator from the locator, and directly playing the program content corresponding to the selected locator to the user terminal; thus, the program identification provided by the user can be converted into at least one set of specific channel information and program information corresponding to the program identification, thereby positioning a specific program in the live channel.
The Locator (Locator) mentioned in the above method includes both the channel information and the program information corresponding to the live program, and in the embodiment of the present invention, there are the following two expression modes:
the first method is as follows: the locator is an extended television uniform resource identifier (tv uri).
We refer to here as tvuri _ locator; the method is characterized in that parameters capable of describing instance information in a channel, such as iptv-param parameters, are expanded on the basis of the traditional tv uri. The instance information may be specific program information (which may be a program identifier), or information of a specific time period (such as a play start time and a play end time of the live channel content, or a play start time and a play duration of the live channel content), or a combination of both. Thus, the expanded tv uri may describe not only a channel, but also a specific program in a channel or a program broadcasted in a specific time period.
tvuri_locator ＝tvuri[iptv-param]
tvuri ＝″tv:″[broadcast]
broadcast ＝dns-identifier
dns-identifier＝*(domainlabel″.″)toplabel[″.″]
domainlabel ＝alphanum|alphanum*(alphanum|″-″)alphanum
toplabel ＝alpha|alpha*(alphanum|″-″)alphanum
The newly defined iptv-param parameter may carry, but is not limited to, a mode, a contentID, a start, a duration, an end, etc. parameter as follows.
iptv-param＝[mode_param][contentID_param][start_param][duration_param][end_param]
mode_param ＝″mode＝″mode
mode ＝″scheduled″|″ondemand″
contentID_param＝″contentID＝″string
start_param＝″start＝″string refer to ISO8601-200420040506T130000+08
duration_param＝″duration＝″string refer to ISO8601-2004P0Y6M5DT3H0M0S
end_param＝″end＝″string refer to ISO8601-200420040506T130000+08
When tvuri _ locator represents the address of a live program in a live channel in an IPTV system, the meaning of each parameter in IPTV-param is described as follows:
[ mode _ param ] is "scheduled", which means that the address is the address of a live program;
[ contentID _ param ] is the identifier of the live program in the corresponding live channel;
the [ start _ param ] and the [ end _ param ] respectively represent the starting time of the live program in the corresponding live channel;
the duration _ param indicates the duration of the live program.
For example, a program such as "hero" is identified as: crid:// zhangyimou. com/hero
The position in the live channel where the live program appears can be expressed in the following form tvuri _ locator.
1. The broadcasting time of 6 sets of movies in the center is 2008-08-0808:00:00, and the duration is two hours, namely hero:
tvuri_locator＝tv:cctv-6.cctv.com；mode＝scheduled；start＝2008-08-08T08:00:00Z；duration＝PT02H00M
2. in the center 12 sets of high-definition movies "hero" with broadcasting time from 2008-08-1008:00:00 to 2008-08-1010:00:
tvuri_locator＝tv:cctv-12.cctv.com；mode＝scheduled；contentID＝hero-hd003；start＝2008-08-10T08:00:00Z；end＝2008-08-10T10:00:00Z
the above-mentioned application of the extended tv uri in the IPTV system is used to describe specific location information of a certain live program, and this way can be applied not only in the process of addressing live programs in the present invention, but also in other various service environments, such as the application of the extended tv uri in PPV (Pay Per View) service, which is used to control the viewing of specific programs or programs broadcasted in a specific time period.
The second method comprises the following steps: the locator describes the channel information by adopting a channel identifier, and the channel identifier can be in a tv uri form; the locator also includes instance information in other forms.
The example information may include, but is not limited to: the program playing mode, the program instance identification and the effective time of the program playing; the information can be defined by the address resolution device and added, modified and the like, and the information in the iptv-param parameter defined in the first mode can be in any order. The instance information does not belong to a part in the tv uri format but to a program information part of the locator. The program terminal and the program playing server must be able to recognize the program description information so as to be able to extract the program information in the locator.
The association between the above-mentioned channel identification and instance information may be connected by a special symbol, such as the symbol "@".
For example, a program such as "hero" is identified as: crid:// zhangyimou. com/hero
1. The program description information in the locator may precede the channel identification, such as:
example 1: a program "hero" played from 4 to 6 points on 8, 1 and 2008 in the center of six sets is associated with a locator
mode＝scheduled；start＝2008-08-01T04:00:00+08；end＝2008-08-1T06:00:00+08@tv:cctv-6.cctv.com
Example 2: the locator corresponding to the program hero which is started 20 o' clock from 2008, 7, 20 and lasts for 1 hour and 50 minutes is six sets in the center
mode＝scheduled；start＝2008-07-20T20:00:00Z；duration＝PT01H50M@tv:cctv-6.cctv.com
2. The program description information in the locator may also be set after the channel identifier, such as:
example 3: a program "hero" played from 4 to 6 points on 8, 1 and 2008 in the center of six sets is associated with a locator
tv:cctv-6.cctv.com@mode＝ondemand；start＝2008-08-01T00:00:00+08；end＝2008-09-30T23:59：59+08
Example 4: the locator corresponding to the program hero which is played in the central six sets of programs 20 o' clock from 2008, 7, 20 and lasts for 1 hour and 50 minutes is
tv:cctv-6.cctv.com@start＝2008-07-20T20:00:00Z；duration＝PT01H50M
In order to make the technical solutions and advantages of the methods for addressing and analyzing addresses of live programs in an IPTV system provided in the embodiments of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 3, when the address resolution device is located in a service selection function entity (SSF) on the network side, a User Equipment (UE) initiates a request for addressing a program location, and then the method for addressing and address resolution of a live program in an IPTV system provided in the embodiment of the present invention specifically includes the following steps:
step 31, the user obtains the program identifier.
A user may obtain a Program identifier CRID of a specific Program through multiple ways such as an Electronic Program Guide (EPG), Email, or a short message, for example, a Program identifier of "kungfu panda" is: crid:// cctv. carton. com/GongFuPanda.
And step 32, the terminal sends a position analysis request to the SSF. The location resolution request includes a program identifier of "kungfu panda".
And step 33, after the address resolution equipment in the SSF determines the corresponding locator according to the program identifier, returning the locator to the terminal.
And the address resolution equipment analyzes the program identification of the kungfu panda, determines the locator corresponding to the program identification and returns one or more locators representing the program position to the user terminal.
The locator may be obtained by querying according to a mapping relationship between the program identifier and the locator (which may be a Content Referencing Table (Content Referencing Table) defined by TV Anytime); or the address resolution device may temporarily generate a locator corresponding to the program identifier after acquiring the channel information and the program information corresponding to the program identifier.
And if the locator corresponding to the program identifier is not analyzed currently, the SSF prompts the user that the current movie does not have the corresponding showing time.
And step 34, the terminal analyzes the received locator.
The terminal analyzes the received locator to obtain the channel information and the program information contained in the locator. The analyzed program information may include one or more of program playing time, program version, whether to charge a fee, whether to have high definition, and the like.
Step 35, the user selects a suitable locator.
The user selects an appropriate locator according to the parsed channel information and program information, that is, the user can select a currently available locator according to the current time or the prompt of the user interface (such as information on whether the program is charged or not, whether the program is high definition or not).
Assuming that the current time is eight hours in 20 nights at 7.2008, the user selects one of the locators, and the chosen locator representing the program location is:
tv:cctv-6.cctv.com；mode＝scheduled；start＝2008-07-20T20:00:00Z；duration＝PT01H50M
if the current time does not have a suitable channel for playing the program that the user wants to watch, i.e. there is no locator corresponding to the current time, the user can perform step 35 again at a suitable time according to the program information carried in the locator.
Step 36, the user terminal initiates a program playing request.
Because the time for selecting the locator by the terminal accords with the broadcast time interval of the channel of the selected program, a program broadcast request (which can be a live session establishment request) is initiated to a media control function (SCF) entity according to the selected locator, and the program content corresponding to the selected locator is required to be broadcast.
In the Session description protocol (SDP, Session description protocol) of the request for establishing the live Session, the locator may be carried by an a line (attribute line) or other manners:
1) the tvuri _ locator is used directly to obtain the program content in the live channel.
a＝bc_service:tv:cctv-6.cctv.com；mode＝scheduled；start＝2008-07-20T20:00:00Z；duration＝PT01H50M
If there is a suitable channel at the current time to play the program that the user wants to watch, the content of the program that the user wants to watch can be obtained directly through the channel information, for example: directly using the channel identifier in tvuri _ locator to obtain the live channel where the program to be watched is located:
a＝bc_service:tv:cctv-6.cctv.com
2) the program content in the live channel is acquired by using the channel identification in combination with other forms of instance information.
Writing the channel identification into the bc _ service attribute;
bc_service:tv:cctv-6.cctv.com
in the request for establishing the live session, the instance information is carried by extending line a in SDP, for example: a is iptv-param, hero-sd 001; start 2008-07-20T20:00: 00Z; duration PT01H50M
Or writing the instance information into eXtensible Markup Language (XML) information carried in a body of a Session Initiation Protocol (SIP) message.
If the time for selecting the locator by the terminal is not consistent with the program playing time, the SCF will give a corresponding prompt to the user.
And step 37, the SCF analyzes the received locator and issues the program content.
And the SCF analyzes the locator carried in the program playing request and issues the specific program in the channel corresponding to the selected locator to the user terminal.
When the address resolution device is located in the SCF entity, the processes of addressing, playing, and address resolution of the live program in the IPTV system provided by the embodiment of the present invention are the same as the above steps, and are not described in detail here.
The terminal sends a program identifier corresponding to a program which a user wants to watch to an address resolution device through a position resolution request, the address resolution device determines a locator corresponding to the program identifier and sends the locator to the terminal, then the terminal selects one locator from the locator and initiates a program playing request, and a network side issues program content corresponding to the selected locator to the terminal. The method for addressing and address resolution of the live program in the IPTV system provided by the embodiment of the invention not only can acquire the corresponding live channel according to the requirement of the user, but also can accurately position the specific program which the user wants to watch.
Example two:
as shown in fig. 4, when the address resolution device is located in a service selection function entity (SSF) on the network side, a User Equipment (UE) initiates a request for addressing a program location, and then the method for addressing and address resolution of a live program in an IPTV system provided in the embodiment of the present invention specifically includes the following steps:
step 41, the user obtains the program identifier.
The user obtains the user identifier CRID through various ways such as EPG, Email or short message, for example, the identifier of "kungfu panda" is: crid:// cctv. carton. com/GongFupanda
Step 42, the user terminal sends a location resolution request to the SSF. The location resolution request includes a program identifier of "kungfu panda".
And step 43, the address resolution equipment in the SSF determines the corresponding locator according to the program identifier.
And the address analysis equipment analyzes the program identification of the kungfu panda to obtain one or more locators corresponding to the kungfu panda.
The locator may be a locator corresponding to a program identifier obtained by querying according to a mapping relationship between the program identifier and the locator; or the address resolution device may temporarily generate a locator corresponding to the program identifier after acquiring the channel information and the program information corresponding to the program identifier.
And if the locator corresponding to the program identifier is not analyzed currently, the SSF prompts the user that the current movie does not have the corresponding showing time.
Step 44, the address resolution device selects the appropriate locator.
The address resolution device may select an optimal locator from the above locators according to some filtering conditions (such as information about program playing time, whether the program is charged or not, whether the program is high definition or not, and the like).
Firstly, the address resolution equipment filters a Locator which can not directly play programs at present according to the current time;
if there are still multiple locators, filtering may be performed according to a setting rule of the user (for example, only watching live broadcast and the channel user has signed a contract), or the like, filtering may be performed according to a time point of movie playing (for example, the time point at which playing starts is shortest), or filtering may be performed according to a network side parameter (for example, a bandwidth size, a user area, a priority level provided by an operator), or the like;
finally, a locator representing the optimal program location is selected.
And if the live program corresponding to the locator analyzed by the address analysis equipment does not have the currently playable program, prompting the user that the channel of the program is not played currently temporarily.
Step 45, the SSF returns the selected locator to the terminal.
The address resolution device in the SSF returns the selected locator representing the location of the optimal program to the user terminal. The program location information may be in the form of a tvuri extension that identifies a channel location where the program is located.
Step 46, the terminal parses the received locator.
The terminal analyzes the received locator to obtain the channel information and the program information contained in the locator.
And step 47, the terminal initiates a program playing request.
The terminal initiates a program playing request (which may be a live session establishment request) to a media control function (SCF) entity according to the selected locator, and requests to play the program content corresponding to the selected locator.
In the SDP of the live session establishment request, the locator may be carried through the a-line or in other ways, and the specific way of carrying the locator is the same as that in the first embodiment, and is not described in detail here.
And step 48, the SCF analyzes the received locator and transmits the program content.
And the SCF analyzes the locator carried in the program playing request and issues the specific program in the channel corresponding to the selected locator to the user terminal.
When the address resolution device is located in the SCF entity, the processes of addressing, playing, and address resolution of the live program in the IPTV system provided by the embodiment of the present invention are the same as the above steps, and are not described in detail here.
In the method for addressing and address resolution of the live program in the IPTV system provided by the embodiment of the invention, the terminal sends the program identifier corresponding to the program which the user wants to watch to the address resolution equipment through the position resolution request, the address resolution equipment determines the locator corresponding to the program identifier, then the locator is screened according to certain conditions, the optimal locator is selected and sent to the terminal, and then the terminal initiates the program playing request to play the program content corresponding to the selected locator. According to the method for addressing and address resolution of the live program in the IPTV system, provided by the embodiment of the invention, as the locator is screened once in the address resolution equipment, the program received by the user is the optimal program which can be played currently, the process that the user selects a plurality of locators is omitted, and the time of the user is saved.
Example three:
as shown in fig. 5, when the address resolution device is located at the User Equipment (UE), the User Equipment (UE) initiates a request for addressing the program location, and the method for addressing and address resolution of the live program in the IPTV system provided in the embodiment of the present invention specifically includes the following steps:
step 51, the user obtains the program identifier.
The user obtains the user identifier CRID through various ways such as EPG, Email or short message, for example, the identifier of "kungfu panda" is: crid:// cctv. carton. com/GongFuPanda.
Step 52, the user terminal sends a location resolution request to the address resolution device located in the local area.
And step 53, determining a locator corresponding to the program identifier.
Obtaining one or more locators corresponding to the program identifier of the kungfu panda by inquiring a mapping relation Table (which can be a Content Referencing Table (SSF) defined by TV Anytime and issued by the SSF when a user is started) between the program identifier and the locators; or acquiring the channel information and the program information corresponding to the program identifier, and temporarily generating a locator corresponding to the program identifier by the address resolution equipment.
Step 54, the terminal parses the received locator.
The terminal analyzes the received locator to obtain the channel information and the program information contained in the locator. The analyzed program information may include one or more of program playing time, program version, whether to charge a fee, whether to have high definition, and the like.
Step 55, the user selects the appropriate locator.
The user selects an appropriate locator according to the parsed channel information and program information, that is, the user can select a currently available locator according to the current time or a prompt of the user interface (such as information on whether the program is charged or not, whether the program is high definition or not).
Step 56, the terminal initiates a program play request.
The terminal initiates a program playing request (which may be a live session establishment request) to a media control function (SCF) entity by using the selected locator, and requests the program playing server to play the program content corresponding to the selected locator.
And step 57, the SCF analyzes the received locator and issues the program content.
And the SCF analyzes the locator carried in the program playing request and issues the specific program in the channel corresponding to the selected locator to the user terminal.
In the method for addressing and address resolution of the live program in the IPTV system provided by the embodiment of the invention, the terminal initiates a position resolution request to the address resolution equipment located locally according to the program identifier corresponding to the program which the user wants to watch, the address resolution equipment determines the locator corresponding to the program identifier, and then the terminal selects one locator and initiates a program playing request to play the program content corresponding to the selected locator. The method for addressing and analyzing the address of the live program in the IPTV system provided by the embodiment of the invention not only can acquire the corresponding live channel according to the requirement of the user, but also can accurately position the specific program which the user wants to watch.
Example four:
as shown in fig. 6, when the address resolution device is located in a service control function entity (SCF), a User Equipment (UE) initiates a request for addressing a program location, and the method for addressing and address resolution of a live program in an IPTV system provided in the embodiment of the present invention specifically includes the following steps:
and step 61, the user acquires the program identifier.
The user can obtain the program identifier CRID through various ways such as EPG, Email or short message, for example, the program identifier of "kungfu panda" is: crid:// cctv. carton. com/GongFupanda
Step 62, the user initiates a location resolution request. Including the program identification of kungfu panda.
And step 63, determining a locator corresponding to the program identifier.
And after receiving the position analysis request, the SCF analyzes the program identifier of the kungfu panda to obtain a plurality of locators corresponding to the kungfu panda.
The locator may be a locator corresponding to a program identifier obtained by querying according to a mapping relationship between the program identifier and the locator; or the address resolution device may temporarily generate a locator corresponding to the program identifier after acquiring the channel information and the program information corresponding to the program identifier.
The SCF selects the appropriate locator, step 64.
The SCF filters the plurality of locators according to some filtering conditions (such as the playing time of the program, whether the program is charged or not, whether the program is high-definition or not and the like), and selects an optimal locator which is currently available.
Firstly, the SCF filters a Locator which can not directly play programs at present according to the current time;
if there are still multiple locators, filtering may be performed according to a setting rule of the user (for example, only watching live broadcast and the channel user has signed a contract), or the like, filtering may be performed according to a time point of movie playing (for example, the time point at which playing starts is shortest), or filtering may be performed according to a network side parameter (for example, a bandwidth size, a user area, a priority level provided by an operator), or the like;
finally, a locator representing the optimal program location is selected.
Step 65, the SCF initiates a program play request.
The SCF directly initiates a program playing request (which can be a live session establishment request) locally according to the selected locator, and requests to play the program content corresponding to the selected locator.
And step 66, the SCF analyzes the selected locator and transmits the program content.
And the SCF analyzes the selected locator and issues a specific program in a live channel corresponding to the locator to the user terminal.
The terminal sends a program identifier corresponding to a program which a user wants to watch to an SCF (service gateway function) through a position analysis request, an address analysis device in the SCF determines a locator corresponding to the program identifier, the SCF selects one locator in the analyzed locator, directly initiates a program playing request locally, and sends the program content corresponding to the selected locator to the terminal. The method for addressing and analyzing the live program in the IPTV system provided by the embodiment of the invention can automatically complete a series of processes such as program address analysis, optimal locator screening, program playing and the like only by sending a position analysis request carrying a program identifier by the user terminal, thereby saving the time of a user.
Aiming at the method for addressing and address resolution of the live program in the IPTV system, the embodiment of the invention also provides a device and a system for addressing and address resolution of the live program in the IPTV system, which can realize the method.
As shown in fig. 7, the program terminal provided in the embodiment of the present invention includes a sending module 71, a receiving module 72, and a parsing module 73; wherein,
a sending module 71, configured to send a location resolution request to an address resolution device, where the location resolution request carries a program identifier;
a receiving module 72, configured to receive a locator returned by the address resolution device, where the locator includes channel information and program information corresponding to the program identifier;
and the analyzing module 73 is configured to analyze the locator to obtain the channel information and the program information.
The program terminal may further include a selecting module 74, configured to select a currently available locator according to the channel information and the program information; furthermore, the sending module 71 may be further configured to send a program playing request, where the program playing request includes the selected locator; the receiving module 72 may also be configured to receive program content corresponding to the selected locator.
The program terminal provided by the embodiment of the invention sends a position analysis request to the address analysis equipment, then receives the locator returned by the address analysis equipment, wherein the locator comprises channel information and program information corresponding to a program which a user wants to watch, and then analyzes the locator; in this way, the user can know which live channels have programs that the user wants to watch, and also clearly know that the programs that the user wants to watch appear at specific positions (for example, specific playing time) of the live channels.
As shown in fig. 8, the address resolution device provided in the embodiment of the present invention includes a receiving module 81, a determining module 82, and a sending module 83; wherein,
a receiving module 81, configured to receive a location resolution request sent by a terminal, where the location resolution request carries a program identifier;
a determining module 82, configured to determine a locator corresponding to the program identifier, where the locator includes channel information and program information;
a sending module 83, configured to send the locator to the terminal, or send the program content corresponding to the selected locator to the terminal if one locator is selected.
The determining module 82 has two implementation forms:
1) a determination module 82, comprising:
and the query module is used for querying the locator corresponding to the program identifier according to the mapping relation between the program identifier balance locators.
2) A determination module 82, comprising:
the acquisition module is used for acquiring channel information and program information corresponding to the program identifier;
and the generating module is used for generating a locator corresponding to the program identifier.
The above address resolution device further includes:
a selection module 84, configured to select a currently available locator according to the channel information and the program information; the sending module 83 sends the locator selected by the selection module 84 to the terminal.
The above address resolution device further includes:
the analyzing module 85 is configured to analyze the locator selected by the selecting module 84 to obtain channel information and program information included in the locator; the sending module 83 sends the program content corresponding to the channel information and the program information to the terminal according to the channel information and the program information analyzed by the analyzing module 85.
According to the address resolution equipment provided by the embodiment of the invention, the locator corresponding to the program identifier carried in the position resolution request is inquired according to the mapping relation between the program identifier and the locator, wherein the locator comprises channel information and program information, and the locator is sent to the user terminal; or selecting one locator from the locators, and directly sending the program content corresponding to the selected locator to the user terminal; therefore, the program identification provided by the user can be converted into at least one set of specific channel information and program information corresponding to the program identification, and the positioning of a specific program in the live channel is completed.
As shown in fig. 9, the IPTV system of the present invention includes a program terminal 91 and an address resolution device 92; wherein,
a program terminal 91, configured to send a location resolution request carrying a program identifier to the address resolution device, receive a locator returned by the address resolution device, where the locator includes channel information and program information corresponding to the program identifier, and then resolve the locator;
the address resolution device 92 is configured to receive the position resolution request sent by the program terminal, determine a locator corresponding to the program identifier, and send the locator to the program terminal; or selecting one of the locators and sending the program content corresponding to the selected locator to the program terminal.
The program terminal 91 is further configured to select a currently available locator according to the channel information and the program information, and initiate a program playing request, where the program playing request includes the selected locator;
the address resolution device 92 is further configured to select a currently available locator according to the channel information and the program information, and send the locator to the program terminal; further, the address resolution device 92 also parses the selected locator, obtains the channel information and the program information in the selected locator, and initiates a program playing request according to the parsed channel information and program information.
In the IPTV system provided in the embodiment of the present invention, a program terminal sends a program identifier corresponding to a program that a user wants to watch to an address resolution device through a position resolution request, the address resolution device determines a locator corresponding to the program identifier and sends the locator to the program terminal, and then the program terminal selects a locator and initiates a program playing request according to the selected locator; or, the address resolution equipment selects one locator in the locator analyzed by the address resolution equipment and directly issues the program content corresponding to the selected locator to the program terminal; the IPTV system provided by the embodiment of the invention not only can acquire the corresponding live broadcast channel according to the requirement of the user, but also can accurately position the specific program which the user wants to watch.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus a necessary hardware platform, and may also be implemented by hardware entirely. With this understanding in mind, all or part of the technical solutions of the present invention that contribute to the background can be embodied in the form of a software product, which can be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods according to the embodiments or some parts of the embodiments of the present invention.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (19)
1. A method for addressing live programs in an IPTV system is characterized by comprising the following steps:
sending a position analysis request to address analysis equipment, wherein the position analysis request carries a program identifier;
receiving a locator returned by the address resolution equipment, wherein the locator comprises channel information and program information corresponding to the program identifier, and the channel information is used for addressing a live channel;
and analyzing the locator to obtain the channel information and the program information.
2. The method of addressing live programs in an IPTV system according to claim 1,
the locator is an extended television uniform resource identifier, and the extended television uniform resource identifier comprises channel information and instance information; wherein the instance information comprises program information, or time information, or a combination of program information and time information.
3. The method of claim 2, wherein the program information is a program identifier; the time information is the playing start time and the playing end time of the live channel content, or the time information is the playing start time and the playing duration time of the live channel content.
4. The method of addressing live programs in an IPTV system according to claim 1,
the locator includes program information and channel information represented in a television uniform resource identifier.
5. The method of addressing live programming in an IPTV system of claim 1, further comprising:
selecting a currently available locator according to the channel information and the program information;
sending a program playing request, wherein the program playing request comprises the selected locator;
and receiving the program content corresponding to the selected locator.
6. The method as claimed in claim 5, wherein the program playing request carries the program information in the locator through a session description protocol in an extended session initiation protocol message, or the program playing request stores the program information in the locator in extensible markup language information carried by a main body of a session initiation protocol message.
7. A method for analyzing the address of the live program in the IPTV system is characterized in that the method comprises the following steps:
receiving a position analysis request sent by a terminal, wherein the position analysis request carries a program identifier;
determining a locator corresponding to the program identifier, wherein the locator comprises channel information and program information, and the channel information is used for addressing a live channel;
sending the locator to the terminal; or selecting a locator and sending the program content corresponding to the selected locator to the terminal.
8. The method of claim 7, wherein the determining the locator corresponding to the program identifier comprises:
inquiring a locator corresponding to the program identifier according to the mapping relation between the program identifier and the locator; or
And acquiring channel information and program information corresponding to the program identifier, and generating a locator corresponding to the program identifier.
9. The method of claim 7, wherein the step of sending the program content corresponding to the selected locator to the terminal comprises:
analyzing the selected locator to obtain channel information and program information included in the locator;
and sending the channel information and the program content corresponding to the program information to the terminal.
10. The method of claim 7, wherein before sending the locator to the terminal, the method further comprises:
a currently available locator is selected based on the channel information and the program information.
11. A program terminal, comprising:
the sending module is used for sending a position analysis request to the address analysis equipment, wherein the position analysis request carries a program identifier;
a receiving module, configured to receive a locator returned by the address resolution device, where the locator includes channel information and program information corresponding to the program identifier, and the channel information is used for addressing a live channel;
and the analyzing module is used for analyzing the locator to obtain the channel information and the program information.
12. The program terminal of claim 11, further comprising:
the selection module is used for selecting a currently available locator according to the channel information and the program information;
the sending module is further configured to send a program playing request, where the program playing request includes the selected locator;
the receiving module is further configured to receive the program content corresponding to the selected locator.
13. An address resolution device, comprising:
the receiving module is used for receiving a position analysis request sent by a terminal, wherein the position analysis request carries a program identifier;
a determining module, configured to determine a locator corresponding to the program identifier, where the locator includes channel information and program information, and the channel information is used for addressing a live channel;
and the sending module is used for sending the locator to the terminal or sending the program content corresponding to the selected locator to the terminal under the condition that one locator is selected.
14. The address resolution device of claim 13, wherein the determination module comprises:
and the query module is used for querying the locator corresponding to the program identifier according to the mapping relation between the program identifier and the locator.
15. The address resolution device of claim 13, wherein the determination module comprises:
the acquisition module is used for acquiring channel information and program information corresponding to the program identifier;
and the generating module is used for generating a locator corresponding to the program identifier.
16. The address resolution device according to claim 13, further comprising:
the selection module is used for selecting a currently available locator according to the channel information and the program information;
and the sending module sends the locator selected by the selection module to the terminal.
17. The address resolution device according to claim 16, further comprising:
the analyzing module is used for analyzing the locator selected by the selecting module to obtain the channel information and the program information included in the selected locator;
and the sending module sends the program content corresponding to the analyzed channel information and program information to the terminal according to the channel information and program information analyzed by the analyzing module.
18. An IPTV system is characterized by comprising a program terminal and an address resolution device; wherein,
the program terminal is configured to send a location resolution request carrying a program identifier to the address resolution device, receive a locator returned by the address resolution device, where the locator includes channel information and program information corresponding to the program identifier, and resolve the locator; the channel information is used for addressing live channels;
the address resolution equipment is used for receiving the position resolution request sent by the program terminal, determining a locator corresponding to the program identifier and sending the locator to the program terminal; or selecting one of the locators and sending the program content corresponding to the selected locator to the program terminal.
19. The IPTV system of claim 18,
the program terminal is further configured to select a currently available locator according to the channel information and the program information, and initiate a program playing request, where the program playing request includes the selected locator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101705894A CN101389002B (en) | 2008-10-23 | 2008-10-23 | Method, apparatus and system for IPTV system live program addressing, address analysis |
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| CN2008101705894A CN101389002B (en) | 2008-10-23 | 2008-10-23 | Method, apparatus and system for IPTV system live program addressing, address analysis |
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| CN101389002B true CN101389002B (en) | 2011-05-18 |
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| CN102036104A (en) * | 2010-12-09 | 2011-04-27 | 四川长虹电器股份有限公司 | Video on demand access control method |
| CN102685575B (en) * | 2011-03-16 | 2016-06-01 | 联想(北京)有限公司 | The method of electronic equipment and switching TV channel |
| KR101824991B1 (en) * | 2011-05-20 | 2018-02-02 | 엘지전자 주식회사 | Display apparatus connected to multiple source devices and method for controlling the same |
| CN104618805B (en) * | 2013-11-01 | 2018-02-23 | 中国移动通信集团公司 | A kind of VOD method and equipment |
| CN103686409B (en) * | 2013-12-06 | 2017-12-12 | 乐视网信息技术（北京）股份有限公司 | The method and system that desktop background synchronously plays with live interface |
| WO2015103774A1 (en) * | 2014-01-10 | 2015-07-16 | 华为终端有限公司 | Program playback method and device |
| CN107333162B (en) * | 2017-06-26 | 2020-08-11 | 广州华多网络科技有限公司 | Method and device for playing live video |
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