CN111225252A - PON gateway UPNP video live broadcast method based on openwrt system - Google Patents
PON gateway UPNP video live broadcast method based on openwrt system Download PDFInfo
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- CN111225252A CN111225252A CN202010009004.1A CN202010009004A CN111225252A CN 111225252 A CN111225252 A CN 111225252A CN 202010009004 A CN202010009004 A CN 202010009004A CN 111225252 A CN111225252 A CN 111225252A
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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
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26258—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for generating a list of items to be played back in a given order, e.g. playlist, or scheduling item distribution according to such list
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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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/232—Content retrieval operation locally within server, e.g. reading video streams from disk arrays
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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
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
-
- 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
-
- 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
- H04N21/6408—Unicasting
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to the technical field of data processing, and provides a PON gateway UPNP video live broadcast method based on an openwrt system.A DMS server stores program list information data in a local database of the DMS server, distributes a program list to bound UPNP equipment, extracts a broadcast website of a selected broadcast program from the local database of the DMS server after receiving a program link request of client UPNP equipment for a certain program, and encapsulates the broadcast website into a multicast message so as to acquire a program multicast stream data packet of a broadcast television front end; and then the DMS server re-encapsulates the program multicast stream data packet into a program unicast data packet and distributes the program unicast data packet to the corresponding UPNP equipment. The invention utilizes the DMS server developed based on openwrt system to distribute live broadcast video stream in real time, realizes live broadcast of UPNP equipment network without delay and pause, and greatly improves the watching experience of users.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a PON gateway UPNP video live broadcast method based on an openwrt system.
Background
UPNP (Universal Plug and Play) protocol, namely the universal Plug and play protocol. UPNP is a structure in which various intelligent devices, wireless devices, personal computers, and the like implement peer-to-peer network connections (P2P) that are distributed and open, and is an independent medium. In any operating system, a UPNP device may be used using any programming language. The UPNP specification is based on the TCP/IP protocol and a new Internet protocol that is formulated for devices to communicate with each other.
Unicast needs to establish a single data channel between a client and a media server; whereas multicast enables point-to-multipoint network connections between a sender and each recipient. The multicast router establishes tree-type routing for the multicast data packet by means of a multicast routing protocol, and transmitted information begins to be copied and distributed at the fork intersections as far as possible.
In the application of the existing DLNA (DIGITAL LIVING NETWORK ALLIANCE ), the use of a DMS (DIGITAL MEDIA SERVER, digital media server) is common, but the existing openwrt scheme only realizes the playing of local storage (U-disk) resources, and for broadcast and television live broadcast video streams, because the broadcast and television live broadcast video streams are multicast-based video streams and real-time data streams, there is no way to play the broadcast and television live broadcast video streams after local storage, so that the existing DLNA server developed based on the openwrt system has no way to perform UPNP distribution playing in the DMS for broadcast and television live broadcast video sources.
Disclosure of Invention
The invention provides a PON gateway UPNP video live broadcast method based on an openwrt system, which solves the technical problems of poor user experience due to data delay caused by network delay when the existing mobile terminal is connected with a network (in an external network form) to watch live broadcast.
In order to solve the technical problem, the invention provides a PON gateway UPNP video live broadcast method based on openwrt system, which comprises the following steps:
s1, the server side of the PON gateway obtains the data information of the live program list;
s2, the server analyzes and stores the live program list data information and distributes the live program list data information to bound UPNP equipment;
s3, when a UPNP equipment selects a program to play, the server analyzes the playing website of the selected program from the stored live program list data information;
s4, the server side packages the multicast message according to the playing website and adds multicast to obtain a program multicast stream data packet of the broadcasting and television front end;
and S5, the server re-encapsulates the program multicast stream data packet into a program unicast data packet, and distributes the program unicast data packet to the corresponding UPNP equipment.
S6, when the UPNP device broadcasts the selected program according to the program unicast data packet, the server side sends a multicast join request to the broadcast television information network at regular time, acquires a new program multicast stream data packet, and enters the step S4.
In step S4, the server encapsulates the multicast packet according to the broadcast website, and specifically includes the steps of:
s41, acquiring the multicast address and the port number in the playing website;
s42, acquiring a wide area network IP address communicated with the radio and television intranet;
s43, packaging the multicast address, the port number and the IP address into the multicast message.
In step S5, the server repackages the multicast streaming data packet of the program into a unicast data packet of the program, specifically including the steps of:
s51, the server side inputs the program multicast stream data packet led from the broadcasting and television front end to a central control module of the server side, and reports the program multicast stream data packet to an application layer from a kernel in real time;
and S52, the application layer repackages the program multicast stream data packet into a program unicast data packet.
In step S52, the server reports the kernel to the application layer in real time through a Netlink socket.
The service side is a DMS service side, and the DMS service side adopts an openwrt system.
In step S1, the server obtains the live program list data information through an http request.
In step S2, specifically, the method includes: and the server stores the analyzed live program list data information in a local database thereof, and distributes the program list in the live program list data information to the bound UPNP equipment through a standard UPNP protocol.
The UPNP equipment is a multimedia player with a UPNP function.
And the UPNP equipment and the server side carry out data transmission through the PON gateway.
The invention provides a PON gateway UPNP video live broadcast method based on openwrt system, firstly, a DMS server stores program list information data in a local database thereof, distributes a program list to a bound UPNP device, after receiving a program link request of a client UPNP device to a certain program, the DMS server extracts a broadcast website of the selected broadcast program from the local database thereof, and packages the broadcast website into multicast messages so as to obtain a program multicast stream data packet of a broadcast television front end; and then the DMS server re-encapsulates the program multicast stream data packet into a program unicast data packet and distributes the program unicast data packet to the corresponding UPNP equipment. By implementing the method, the UPNP is distributed to the live video stream in real time by using the DMS server developed based on the openwrt system, the live video broadcast of the UPNP equipment network without delay and pause is realized, and the watching experience of a user is greatly improved.
Drawings
Fig. 1 is a system flowchart of a PON gateway UPNP video live broadcast method based on an openwrt system according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating the detailed operation of step S4 in FIG. 1 according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a specific operation of step S5 in fig. 1 according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which are given solely for the purpose of illustration and are not to be construed as limitations of the invention, including the drawings which are incorporated herein by reference and for illustration only and are not to be construed as limitations of the invention, since many variations thereof are possible without departing from the spirit and scope of the invention.
As shown in fig. 1, a PON gateway UPNP video live broadcast method based on an openwrt system provided in the embodiment of the present invention includes the following steps:
s1, the server side of the PON gateway obtains the data information of the live program list;
s2, the server analyzes and stores the live program list data information and distributes the live program list data information to bound UPNP equipment;
s3, when a UPNP equipment selects a program to play, the server analyzes the playing website of the selected program from the stored live program list data information;
s4, the server side packages the multicast message according to the playing website and adds multicast to obtain a program multicast stream data packet of the broadcasting and television front end;
and S5, the server re-encapsulates the program multicast stream data packet into a program unicast data packet, and distributes the program unicast data packet to the corresponding UPNP equipment.
S6, when the UPNP device broadcasts the selected program according to the program unicast data packet, the server side sends a multicast join request to the broadcast television information network at regular time, acquires a new program multicast stream data packet, and enters the step S4.
Referring to fig. 2, in step S4, the server encapsulates the multicast packet according to the broadcast website, which specifically includes the steps of:
s41, acquiring the multicast address and the port number in the playing website;
s42, acquiring a wide area network IP address communicated with the radio and television intranet;
s43, packaging the multicast address, the port number and the IP address into the multicast message.
Referring to fig. 3, in step S5, the server repackages the multicast streaming data packet of the program into a unicast streaming data packet of the program, specifically includes the steps of:
s51, the server side inputs the program multicast stream data packet led from the broadcasting and television front end to a central control module of the server side, and reports the program multicast stream data packet to an application layer from a kernel in real time;
and S52, the application layer repackages the program multicast stream data packet into a program unicast data packet.
In step S52, the server reports the kernel to the application layer in real time through a Netlink socket.
The service side is a DMS service side, and the DMS service side adopts an openwrt system.
In step S1, the server obtains the live program list data information through an http request.
In step S2, specifically, the method includes: and the server stores the analyzed live program list data information in a local database thereof, and distributes the program list in the live program list data information to the bound UPNP equipment through a standard UPNP protocol.
The UPNP equipment is a multimedia player with a UPNP function.
And the UPNP equipment and the server side carry out data transmission through the PON gateway.
Referring to fig. 1 to fig. 3, the specific working flow of the live broadcasting method is as follows:
firstly, a DMS server side sends an http request to a broadcast television information network (broadcasting and television front end) to acquire live program list data information; and then, the DMS server analyzes the live program list data information and stores the data information into a local database, and simultaneously distributes the program list in the live program list data information to peripheral bound UPNP equipment through a standard UPNP protocol.
At this time, when a certain UPNP device (for example, a player supporting a UPNP function downloaded by a mobile phone, or VLC software of a computer terminal) selects a program to play, the DMS server obtains a playing website of the selected program from the live program list data stored in a local database, and obtains a multicast address and a port number of the selected program and a wide area network IP address communicating with a radio and television intranet according to the playing website; and finally, packaging the multicast address, the port number and the IP address into a multicast message and sending the multicast message to a broadcast television information network, thereby joining multicast and acquiring a program multicast stream data packet at the front end of the broadcast television.
And the DMS server inputs the program multicast streaming data packet led from the radio and television front end into a central control module of the DMS server, and reports the program multicast streaming data packet to an application layer from a kernel in real time, and the application layer re-encapsulates the program multicast streaming data packet into a program unicast data packet and distributes the program unicast data packet to the corresponding UPNP equipment.
When the UPNP equipment broadcasts the selected program in a live mode according to the program unicast data packet, the DMS server side sends a multicast adding request to a broadcast television information network at regular time, acquires and packages a new program multicast data packet into a new program unicast data packet, and continuously transmits the multicast data stream of the broadcasting and television front end to the PON gateway, so that live broadcast interruption is effectively prevented.
The embodiment of the invention provides a PON gateway UPNP video live broadcast method based on an openwrt system, firstly, a DMS server stores program list information data in a local database of the DMS server, distributes a program list to bound UPNP equipment, extracts a broadcast website of a selected broadcast program from the local database of the DMS server after receiving a program link request of a client UPNP equipment to a certain program, and encapsulates the broadcast website into multicast messages so as to obtain a program multicast stream data packet of a broadcasting and television front end; and then the DMS server re-encapsulates the program multicast stream data packet into a program unicast data packet and distributes the program unicast data packet to the corresponding UPNP equipment. By implementing the method, the UPNP is distributed to the live video stream in real time by using the DMS server developed based on the openwrt system, the live video broadcast of the UPNP equipment network without delay and pause is realized, and the watching experience of a user is greatly improved.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. The PON gateway UPNP video live broadcast method based on the openwrt system is characterized by comprising the following steps:
s1, the server side of the PON gateway obtains the data information of the live program list;
s2, the server analyzes and stores the live program list data information and distributes the live program list data information to bound UPNP equipment;
s3, when a UPNP equipment selects a program to play, the server analyzes the playing website of the selected program from the stored live program list data information;
s4, the server side packages the multicast message according to the playing website and adds multicast to obtain a program multicast stream data packet of the broadcasting and television front end;
and S5, the server re-encapsulates the program multicast stream data packet into a program unicast data packet, and distributes the program unicast data packet to the corresponding UPNP equipment.
2. The PON gateway UPNP video live broadcasting method based on openwrt system according to claim 1, further comprising, after the step S5, the steps of:
s6, when the UPNP device broadcasts the selected program according to the program unicast data packet, the server side sends a multicast join request to the broadcast television information network at regular time, acquires a new program multicast stream data packet, and enters the step S4.
3. The PON gateway UPNP video live broadcasting method based on an openwrt system according to claim 2, wherein in the step S4, the server encapsulates the multicast packet according to the broadcast website, specifically comprising the steps of:
s41, acquiring the multicast address and the port number in the playing website;
s42, acquiring a wide area network IP address communicated with the radio and television intranet;
s43, packaging the multicast address, the port number and the IP address into the multicast message.
4. The PON gateway UPNP video live broadcasting method according to claim 3, wherein in the step S5, the server re-encapsulates the program multicast stream packet into a program unicast packet, specifically comprising the steps of:
s51, the server side inputs the program multicast stream data packet led from the broadcasting and television front end to a central control module of the server side, and reports the program multicast stream data packet to an application layer from a kernel in real time;
and S52, the application layer repackages the program multicast stream data packet into a program unicast data packet.
5. The PON gateway UPNP video live broadcasting method based on openwrt system as claimed in claim 4, wherein in said step S52, said server reports from kernel to application layer in real time through Netlink socket.
6. The PON gateway UPNP video live broadcasting method based on openwrt system according to claim 1, wherein: the service side is a DMS service side, and the DMS service side adopts an openwrt system.
7. The PON gateway UPNP video live broadcasting method based on openwrt system according to claim 1, wherein in the step S1, the server obtains the data information of the live program list through an http request.
8. The PON gateway UPNP video live broadcasting method based on openwrt system according to claim 1, wherein in the step S2, specifically, the method includes: and the server stores the analyzed live program list data information in a local database thereof, and distributes the program list in the live program list data information to the bound UPNP equipment through a standard UPNP protocol.
9. The PON gateway UPNP video live broadcasting method based on openwrt system according to claim 1, wherein: the UPNP equipment is a multimedia player with a UPNP function.
10. The PON gateway UPNP video live broadcasting method based on openwrt system according to claim 1, wherein: and the UPNP equipment and the server side carry out data transmission through the PON gateway.
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