CN111669609B - Mixed presentation method of DVB (digital video broadcasting) channel and IP (Internet protocol) channel - Google Patents
Mixed presentation method of DVB (digital video broadcasting) channel and IP (Internet protocol) channel Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
- H04N21/2541—Rights Management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6402—Address allocation for clients
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6405—Multicasting
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- Engineering & Computer Science (AREA)
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- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
A method of mixed presentation of DVB channels and IP channels, comprising the steps of: configuring attribute categories of DVB parameters, IP addresses, multicast addresses and resolution ratios for all live channels; if the live broadcast channel selected by the set-top box has a multicast address, the set-top box performs multicast according to the multicast address; if the live channel selected by the set-top box has DVB parameters but does not have an IP address and a multicast address, the set-top box acquires a DVB information source according to the DVB parameters, filters the DVB information source according to the resolution and the hardware condition of the set-top box, and plays the DVB information source according to the filtered DVB information source; if the live channel selected by the set-top box has an IP address but does not have DVB parameters and a multicast address, the set-top box acquires an IP information source according to the IP address, filters the IP information source according to the resolution and the hardware condition of the set-top box, and plays according to the filtered IP information source. The invention has novel design and strong practicability.
Description
Technical Field
The invention relates to the technical field of set top boxes, in particular to a mixed presentation method of a DVB (digital video broadcasting) channel and an IP (Internet protocol) channel.
Background
Set-top boxes on the market currently include DVB set-top boxes and IP set-top boxes, the DVB set-top boxes can only be used for playing DVB channels, and the IP set-top boxes can only be used for playing IP channels. Meanwhile, the DVB set-top box and the IP set-top box both have different hardware specifications, and when multiple channel sources with the same channel and different resolutions are obtained, random playing is performed, and sometimes the best playing effect cannot be obtained.
Disclosure of Invention
The present invention provides a mixed presentation method of DVB channel and IP channel to solve the above technical problems.
The technical scheme provided by the invention is as follows:
the invention provides a mixed presentation method of a DVB channel and an IP channel, which comprises the following steps:
step S1, configuring DVB parameter, IP address, multicast address and attribute category of resolution ratio for all live broadcast channels by using front end channel and EPG issuing system;
step S2, if the live broadcast channel selected by the set-top box has a multicast address, the set-top box multicasts the live broadcast channel according to the multicast address;
if the live channel selected by the set-top box has DVB parameters but does not have an IP address and a multicast address, the set-top box acquires a DVB information source according to the DVB parameters, filters the DVB information source according to the resolution and the hardware condition of the set-top box, and then plays the corresponding live channel according to the filtered DVB information source;
if the live channel selected by the set-top box has the IP address but does not have the DVB parameters and the multicast address, the set-top box acquires the IP information source according to the IP address, filters the IP information source according to the resolution and the hardware condition of the set-top box, and then plays the corresponding live channel according to the filtered IP information source.
In the foregoing method for mixed presentation of a DVB channel and an IP channel, the step S2 includes:
step S21a, the set-top box starts DVB live broadcast application to obtain live broadcast channel data of the selected live broadcast channel, wherein the live broadcast channel data comprises a list of DVB parameters, IP addresses, multicast addresses and resolution ratios;
step S22a, the DVB live broadcast application judges whether the live broadcast channel has a multicast address according to the live broadcast channel data, if yes, the DVB live broadcast application acquires the multicast address of the live broadcast channel from a front-end channel and EPG issuing system;
step S23a, the front-end channel and EPG issuing system judges whether the DVB live broadcast application passes the authentication, if yes, the front-end channel and EPG issuing system returns the multicast address of the live broadcast channel to the DVB live broadcast application, and the DVB live broadcast application performs the authentication and multicast according to the multicast address; and if the multicast of the DVB live broadcast application fails, the DVB live broadcast application utilizes the DVB parameters to carry out CA authentication and play.
In the mixed presenting method of the DVB channel and the IP channel of the present invention, the step S22b further includes:
and when the front-end channel and EPG issuing system judges that the IP live broadcast application does not pass the authentication, ending the process.
In the mixed presenting method of the DVB channel and the IP channel of the present invention, step S23b further includes:
and when the channel playing address of the live broadcast channel does not have the multicast address, the IP live broadcast application plays the live broadcast channel by using the IP address.
In the foregoing method for mixed presentation of a DVB channel and an IP channel, the step S2 further includes:
step S21b, the set-top box starts an IP live broadcast application to obtain live broadcast channel data of the selected live broadcast channel, wherein the live broadcast channel data comprises a list of DVB parameters, IP addresses, multicast addresses and resolution ratios; the IP live broadcast application acquires a channel playing address of a live broadcast channel from a front-end channel and EPG issuing system according to the list, wherein the channel playing address comprises an IP address;
step S22b, the front end channel and EPG issuing system judges whether the IP live broadcast application passes the authentication, if yes, the front end channel and EPG issuing system returns the channel playing address of the live broadcast channel to the IP live broadcast application;
step S23b, determining whether the channel playing address of the live broadcast channel has a multicast address, if so, the IP live broadcast application uses the multicast address to play the live broadcast channel.
In the mixed presenting method of the DVB channel and the IP channel of the present invention, the step S22b further includes:
and when the front-end channel and EPG issuing system judges that the IP live broadcast application does not pass the authentication, ending the process.
In the mixed presenting method of the DVB channel and the IP channel of the present invention, step S23b further includes:
and when the channel playing address of the live broadcast channel does not have the multicast address, the IP live broadcast application plays the live broadcast channel by using the IP address.
In the method for mixed presentation of DVB channel and IP channel of the present invention, in step S2, the filtering the DVB information source according to the resolution and the hardware condition of the set-top box includes the following steps:
if the DVB information sources have various resolutions, filtering the DVB information sources of which the set top box can not support the playing resolution according to the hardware condition of the set top box, and reserving the DVB information sources with the highest resolution in the rest DVB information sources.
The invention adds DVB channel parameters for the live broadcast channel with DVB information source and IP information source, adds multicast address to the channel for open multicast, and provides the interface for real-time acquisition. And configuring virtual serviceID for the live channel only with the IP information source, wherein the virtual serviceID is used for identifying the unique channel. When a user calls a live channel list in live broadcasting and expands the EPG of the live channel, the EPG data of the live channel is acquired in real time from a front-end channel and an EPG issuing system. The invention also configures display or hidden parameters aiming at partial channels through the front-end channel and the EPG issuing system so as to realize the function of hiding the channels on unsupported hardware. The front-end channel and EPG issuing system can configure parameters of a high-definition channel aiming at a standard-definition channel with a high-definition source, and the terminal automatically analyzes and plays the high-definition source when playing the standard definition after receiving the parameters. The mixed presentation method of the DVB channel and the IP channel has novel design and strong practicability.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 shows a flow chart of a method for hybrid presentation of DVB channels and IP channels according to a preferred embodiment of the invention;
fig. 2 is a schematic diagram illustrating a front-end channel and an EPG delivery system of a DVB channel and IP channel mixed presentation method according to a preferred embodiment of the present invention returning data to a live broadcast application;
fig. 3 shows a flow chart of the live application filtering source of the mixed DVB and IP channel rendering method of the preferred embodiment of the invention.
Detailed Description
The technical problem to be solved by the invention is as follows: existing set-top boxes can be used either only for playing DVB channels or only for playing IP channels. Meanwhile, the DVB set-top box and the IP set-top box both have different hardware specifications, and when multiple channel sources with the same channel and different resolutions are obtained, random playing is performed, and sometimes the best playing effect cannot be obtained. The technical idea of the invention for solving the technical problem is as follows: configuring attribute categories of DVB parameters, IP addresses, multicast addresses and resolution ratios for all live channels by using a front-end channel and an EPG issuing system; the DVB live broadcast application and the IP live broadcast application are configured in the set-top box, the DVB channel and the IP channel can be respectively played, and meanwhile, filtering is carried out according to the resolution ratio of the live broadcast channel, so that the channel with the highest resolution ratio can be played by the set-top box hardware.
In order to make the technical purpose, technical solutions and technical effects of the present invention more clear and facilitate those skilled in the art to understand and implement the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, fig. 1 shows a flow chart of a hybrid presentation method of DVB channels and IP channels according to a preferred embodiment of the present invention. The invention provides a mixed presentation method of a DVB channel and an IP channel, which comprises the following steps:
step S1, configuring DVB parameter, IP address, multicast address and attribute category of resolution ratio for all live broadcast channels by using front end channel and EPG issuing system;
step S2, if the live broadcast channel selected by the set-top box has a multicast address, the set-top box multicasts the live broadcast channel according to the multicast address;
if the live channel selected by the set-top box has DVB parameters but does not have an IP address and a multicast address, the set-top box acquires a DVB information source according to the DVB parameters, filters the DVB information source according to the resolution and the hardware condition of the set-top box, and then plays the corresponding live channel according to the filtered DVB information source;
if the live channel selected by the set-top box has the IP address but does not have the DVB parameters and the multicast address, the set-top box acquires the IP information source according to the IP address, filters the IP information source according to the resolution and the hardware condition of the set-top box, and then plays the corresponding live channel according to the filtered IP information source.
The technical scheme belongs to a framework scheme of a mixed presentation method of a DVB channel and an IP channel. According to the attribute categories of the DVB parameters, the IP addresses, the multicast addresses and the resolution ratios configured for all the live channels by using the front-end channel and the EPG issuing system, the set-top box can select when facing various information sources of the same live channel, and then correspondingly play the DVB channels and the IP channels through the DVB live application and the IP live application configured in the set-top box. In addition, the filtering is carried out according to the resolution of the live channel, so that the channel with the highest resolution which can be played by the set-top box hardware can be played, and the user experience is enhanced.
The step S2 includes:
step S21a, the set-top box starts DVB live broadcast application to obtain live broadcast channel data of the selected live broadcast channel, wherein the live broadcast channel data comprises a list of DVB parameters, IP addresses, multicast addresses and resolution ratios;
step S22a, the DVB live broadcast application judges whether the live broadcast channel has a multicast address according to the live broadcast channel data, if yes, the DVB live broadcast application acquires the multicast address of the live broadcast channel from a front-end channel and EPG issuing system;
step S23a, the front-end channel and EPG issuing system judges whether the DVB live broadcast application passes the authentication, if yes, the front-end channel and EPG issuing system returns the multicast address of the live broadcast channel to the DVB live broadcast application, and the DVB live broadcast application performs the authentication and multicast according to the multicast address; and if the multicast of the DVB live broadcast application fails, the DVB live broadcast application utilizes the DVB parameters to carry out CA authentication and play.
Further, step S22a further includes:
and when the live channel has no multicast address, the DVB live application calls the DVB parameter of the live channel and plays the live channel after CA authentication.
Further, step S23a further includes:
when the front-end channel and EPG issuing system judges that the DVB live broadcast application does not pass the authentication, the DVB live broadcast application calls the DVB parameters of the live broadcast channel and plays the DVB parameters after CA authentication.
On the other hand, the step S2 further includes:
step S21b, the set-top box starts an IP live broadcast application to obtain live broadcast channel data of the selected live broadcast channel, wherein the live broadcast channel data comprises a list of DVB parameters, IP addresses, multicast addresses and resolution ratios; the IP live broadcast application acquires a channel playing address of a live broadcast channel from a front-end channel and EPG issuing system according to the list, wherein the channel playing address comprises an IP address;
step S22b, the front end channel and EPG issuing system judges whether the IP live broadcast application passes the authentication, if yes, the front end channel and EPG issuing system returns the channel playing address of the live broadcast channel to the IP live broadcast application;
step S23b, determining whether the channel playing address of the live broadcast channel has a multicast address, if so, the IP live broadcast application uses the multicast address to play the live broadcast channel.
Further, step S22b further includes:
and when the front-end channel and EPG issuing system judges that the IP live broadcast application does not pass the authentication, ending the process.
Further, step S23b further includes:
and when the channel playing address of the live broadcast channel does not have the multicast address, the IP live broadcast application plays the live broadcast channel by using the IP address.
In the technical scheme, after the DVB live broadcast application is opened, the DVB live broadcast application acquires DVB parameters and EPG of all live broadcast channels through a system interface. When a user plays a live channel, the DVB live application calls a system interface to perform frequency locking, CA authentication and playing by using the acquired DVB parameters. If the current live broadcast channel has the multicast address, the DVB live broadcast application requests the multicast address to the front-end channel and the EPG issuing system, and after the authentication is passed, the front-end channel and the EPG issuing system return the multicast address. And the DVB live broadcast application calls the platform to play after receiving the multicast address.
And after the IP live broadcast application is opened, the IP live broadcast application acquires the IP addresses and the EPG of all live broadcast channels through a system interface. When the user plays the live broadcast channel, the IP live broadcast application requests the IP address of the live broadcast channel to the front-end channel and the EPG issuing system, and the IP address is acquired and played after the authentication is passed. If the current live broadcast channel has a multicast address, the multicast address is returned at the same time when the IP address is requested. And after receiving the IP address and the multicast address, the IP live broadcast application calls the platform to play the multicast address.
When a user calls a live channel list in live broadcasting and expands the EPG of the live channel, the EPG data of the live channel is acquired in real time and displayed to a front-end channel and an EPG issuing system.
Further, in step S2, the filtering the DVB source according to the resolution and the set-top box hardware condition includes the following steps:
if the DVB information sources have various resolutions, filtering the DVB information sources of which the set top box can not support the playing resolution according to the hardware condition of the set top box, and reserving the DVB information sources with the highest resolution in the rest DVB information sources.
Specifically, when the played live channel is a standard definition channel, if a corresponding high-definition channel exists, the live channel is automatically switched to the high-definition channel;
if the hardware of the set-top box supports decoding and playing a live channel of 4K P50 (with the resolution of 2160P and 50 frames), live broadcasting a live channel of 4K P50 and hiding a live channel of 4K P25; if the hardware of the set-top box only supports decoding and playing a live channel of 4K P25 (with the resolution of 2160P and 50 frames), the live channel of 4K P25 is displayed live, and the live channel of 4K P50 is hidden.
To implement this function in both bi-directional and unidirectional set-top boxes, it can be implemented as follows:
1) as shown in fig. 2-3, fig. 2 is a schematic diagram illustrating that a front-end channel and an EPG issuing system of the DVB channel and IP channel mixed presentation method according to the preferred embodiment of the present invention return data to a live broadcast application. Fig. 3 shows a flow chart of the live application filtering source of the mixed DVB and IP channel rendering method of the preferred embodiment of the invention. Aiming at the bidirectional set-top box, the parameter content of the channel brief introduction of the front-end DTV service information system is configured and issued. "channel profile" content is a string containing configuration parameters, each configuration being in lowercase semicolon "; "delimited, description field for 4K live channel for 25FPS is described by" 4K ═ 4K _25FPS ", 4K ═ 4K _50 FPS" for 4K live channel for 50FPS, and "4K ═ 4K _ AVS 2" for live channel of AVS 2. If other words exist in the corresponding parameters, the corresponding parameters are not processed. For a live broadcast channel containing high definition and standard definition, a front end adds a serviceID parameter in a channel profile field, and the configured parameter is the serviceID of the corresponding high definition channel. The overall format after configuration is (without double quotation marks): 4K — 50 FPS; ServiceID 123; ".
2) And configuring a 'channel description' parameter of a front-end SI system aiming at the unidirectional set-top box. The format of the configuration is the same as bi-directional.
After the set-top box updates the channel list, the channel list is analyzed according to the content of the channel brief introduction, and the playing parameters of the standard definition live channel configured with the high-definition channel parameters are replaced by the parameters of the high-definition source, so that the user can automatically switch to the information source of the high-definition channel when playing the standard definition channel, and hide or display the channel for different hardware set-top boxes.
The invention adds DVB channel parameters for the live broadcast channel with DVB information source and IP information source, adds multicast address to the channel for open multicast, and provides the interface for real-time acquisition. And configuring virtual serviceID for the live channel only with the IP information source, wherein the virtual serviceID is used for identifying the unique channel. When a user calls a live channel list in live broadcasting and expands the EPG of the live channel, the EPG data of the live channel is acquired in real time from a front-end channel and an EPG issuing system. The invention also configures display or hidden parameters aiming at partial channels through the front-end channel and the EPG issuing system so as to realize the function of hiding the channels on unsupported hardware. The front-end channel and EPG issuing system can configure parameters of a high-definition channel aiming at a standard-definition channel with a high-definition source, and the terminal automatically analyzes and plays the high-definition source when playing the standard definition after receiving the parameters. The mixed presentation method of the DVB channel and the IP channel has novel design and strong practicability.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (1)
1. A method for hybrid presentation of DVB channels and IP channels, comprising the steps of:
step S1, configuring DVB parameter, IP address, multicast address and attribute category of resolution ratio for all live broadcast channels by using front end channel and EPG issuing system;
step S2, if the live broadcast channel selected by the set-top box has a multicast address, the set-top box multicasts the live broadcast channel according to the multicast address;
if the live channel selected by the set-top box has DVB parameters but does not have an IP address and a multicast address, the set-top box acquires a DVB information source according to the DVB parameters, filters the DVB information source according to the resolution and the hardware condition of the set-top box, and then plays the corresponding live channel according to the filtered DVB information source;
if the live channel selected by the set-top box has an IP address but does not have DVB parameters and a multicast address, the set-top box acquires an IP information source according to the IP address, filters the IP information source according to the resolution and the hardware condition of the set-top box, and plays the corresponding live channel according to the filtered IP information source;
the step S2 includes:
step S21a, the set-top box starts DVB live broadcast application to obtain live broadcast channel data of the selected live broadcast channel, wherein the live broadcast channel data comprises a list of DVB parameters, IP addresses, multicast addresses and resolution ratios;
step S22a, the DVB live broadcast application judges whether the live broadcast channel has a multicast address according to the live broadcast channel data, if yes, the DVB live broadcast application acquires the multicast address of the live broadcast channel from a front-end channel and EPG issuing system;
step S23a, the front-end channel and EPG issuing system judges whether the DVB live broadcast application passes the authentication, if yes, the front-end channel and EPG issuing system returns the multicast address of the live broadcast channel to the DVB live broadcast application, and the DVB live broadcast application performs the authentication and multicast according to the multicast address; if the multicast of the DVB live broadcast application fails, the DVB live broadcast application utilizes the DVB parameters to carry out CA authentication and play;
step S22a further includes:
when the live channel has no multicast address, the DVB live application calls the DVB parameter of the live channel, and the DVB parameter is played after CA authentication;
step S23a further includes:
when a front-end channel and EPG issuing system judges that DVB live broadcast application does not pass authentication, the DVB live broadcast application calls DVB parameters of the live broadcast channel and plays the DVB live broadcast channel after CA authentication;
the step S2 further includes:
step S21b, the set-top box starts an IP live broadcast application to obtain live broadcast channel data of the selected live broadcast channel, wherein the live broadcast channel data comprises a list of DVB parameters, IP addresses, multicast addresses and resolution ratios; the IP live broadcast application acquires a channel playing address of a live broadcast channel from a front-end channel and EPG issuing system according to the list, wherein the channel playing address comprises an IP address;
step S22b, the front end channel and EPG issuing system judges whether the IP live broadcast application passes the authentication, if yes, the front end channel and EPG issuing system returns the channel playing address of the live broadcast channel to the IP live broadcast application;
step S23b, judging whether the channel playing address of the live broadcast channel has a multicast address, if so, the IP live broadcast application uses the multicast address to play the live broadcast channel;
step S22b further includes:
when the front-end channel and EPG issuing system judges that the IP live broadcast application does not pass the authentication, the method is ended;
step S23b further includes:
when the channel playing address of the live broadcast channel does not have a multicast address, the IP live broadcast application plays the live broadcast channel by using the IP address;
in step S2, the filtering of the DVB information source according to the resolution and the set-top box hardware condition includes the following steps:
if the DVB information sources have various resolutions, filtering the DVB information sources of which the set top box can not support the playing resolution according to the hardware condition of the set top box, and reserving the DVB information sources with the highest resolution in the rest DVB information sources.
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| CN101436948A (en) * | 2008-12-02 | 2009-05-20 | 浪潮电子信息产业股份有限公司 | SCM/Ethernet composite PON network and method for bearing VoD business |
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| CN106303611B (en) * | 2015-06-02 | 2020-09-08 | 中兴通讯股份有限公司 | Method and system for realizing film source pushing |
| CN105959803A (en) * | 2016-05-30 | 2016-09-21 | 华为技术有限公司 | Business management method, device and system for mixed set top box, and mixed set top box |
| CN106961623A (en) * | 2017-04-11 | 2017-07-18 | 深圳市茁壮网络股份有限公司 | A kind of digital television system, headend equipment and set top box |
| CN110996113A (en) * | 2019-12-13 | 2020-04-10 | 四川省有线广播电视网络股份有限公司 | Live broadcast channel real-time video navigation method realized through IP channel |
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