CN111918091A - Method for realizing multimedia program distribution and satellite television live broadcast system - Google Patents
Method for realizing multimedia program distribution and satellite television live broadcast system Download PDFInfo
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- CN111918091A CN111918091A CN202010801258.7A CN202010801258A CN111918091A CN 111918091 A CN111918091 A CN 111918091A CN 202010801258 A CN202010801258 A CN 202010801258A CN 111918091 A CN111918091 A CN 111918091A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- 230000006870 function Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000010295 mobile communication Methods 0.000 description 1
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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
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
-
- 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
-
- 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
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
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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
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
-
- 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
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
- H04N21/4825—End-user interface for program selection using a list of items to be played back in a given order, e.g. playlists
-
- 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
- H04N21/643—Communication protocols
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a method for realizing multimedia program distribution, which comprises the steps that a plurality of tuners are arranged in satellite direct broadcast television receiving equipment, and broadcasting addresses are configured for searched programs after demodulation; tuning each Tuner to a corresponding frequency point, setting program data and packaging the data; performing data broadcasting and sending a program playlist according to the broadcasting address; the playing terminal acquires the program playing list and the program playing address, receives the program data and carries out decoding playing. The system comprises the satellite direct broadcast television receiving equipment and a playing terminal, wherein the satellite direct broadcast television receiving equipment comprises a plurality of tuners, a descrambling system, a configuration management system, a distribution system and a first network module. In the invention, the receiving of multi-channel program signals is realized by adopting a plurality of tuners, and live programs are distributed through the network, so that the function of watching different live programs at the same time by a multi-broadcasting terminal connected to the network free of charge is realized.
Description
Technical Field
The invention relates to the technical field of satellite television live broadcast, in particular to a method for realizing multimedia program distribution and a satellite television live broadcast system.
Background
The direct broadcast satellite is a special communication satellite for directly relaying television or audio broadcast programs to the public, and is mainly used for direct television broadcast. The direct broadcast television receiving equipment can realize watching of television programs by receiving direct broadcast satellite signals. Because the satellite signal is less influenced by the environmental factors, the direct television broadcast coverage aiming at the ground signals and the cable signals in remote mountainous areas, ocean areas, polar regions and the like which are difficult to cover can be realized. The existing live television receiving equipment adopts one receiving antenna, and realizes the broadcast of the broadcast live program through a video output interface of the equipment, but is limited by the limitation that the equipment generally only has one video output interface, only one path of live program can be output at the same time, people served by the equipment can only be forced to watch the same program, and the simultaneous watching of multiple paths of programs cannot be realized.
With the development of science and technology, mobile communication devices such as smart phones and tablet computers and multimedia playing devices are rapidly popularized, and the devices meet the communication requirements of people and provide audio-visual entertainment functions for people through strong multimedia decoding capacity.
The intelligent mobile phone, the tablet personal computer, the multimedia playing device and the like greatly meet diversified requirements of people, but the watching of live programs cannot be realized in a cheap or even free mode through satellite live television receiving equipment due to the limitation of live satellite program sources.
Disclosure of Invention
The invention aims to provide a method for realizing multimedia program distribution and a satellite television live broadcast system, which are used for solving the problems that in the prior art, live broadcast television receiving equipment can realize the reception of live broadcast programs by receiving live broadcast satellite signals, but cannot realize the simultaneous watching of multiple channels of programs; the mobile phone of the user can realize multimedia playing, but cannot watch live programs in a cheap or even free mode.
The invention solves the problems through the following technical scheme:
a method of enabling multimedia program distribution, comprising:
step S1: a plurality of tuners are arranged in the satellite direct broadcast television receiving equipment, programs are searched on each Tuner in sequence, and the searched programs are demodulated, stored and respectively configured with broadcast addresses;
step S2: tuning each Tuner to a frequency point corresponding to the Tuner in sequence, setting program data, storing the set program data, and selecting corresponding packaging format package data according to the video coding type of the program data;
step S3: broadcasting data according to the set broadcasting address, and sending a program broadcasting list by adopting an http protocol;
step S4: and the playing terminal connected with the satellite live television equipment network acquires a program playing list by adopting an http protocol, acquires a program playing address according to user selection, receives program data from the program playing address and decodes and plays the program data.
The step S2 further includes data encryption before data is packaged, and decryption is required before decoding and playing in the step S4.
The video coding types comprise an H264 format and an Mpeg2 format, and are packaged according to an HLS protocol slice if the video coding is in the H264 format, and packaged according to an RTMP protocol if the video coding is in the Mpeg2 format.
A satellite direct broadcast television system for realizing multimedia program distribution comprises a satellite direct broadcast television receiving device and a playing terminal, wherein the satellite direct broadcast television receiving device comprises a plurality of tuners, a descrambling system, a configuration management system, a distribution system and a first network module, wherein:
a plurality of Tuner for receiving satellite live programs;
the descrambling system is used for demodulating the satellite live program received by Tuner;
a configuration management system for storing Tuner quantity and programs demodulated by the descrambling system and configuring broadcasting addresses of the programs; the Tuner is also used for tuning Tuner to a set frequency point and setting program data corresponding to Tuner;
the distribution system is used for receiving the program data corresponding to each Tuner from the configuration management system and storing the program data to the local; and for encapsulating the distributed program data according to the video encoding type of the program;
the first network module is used for acquiring the encapsulated data from the distribution system, broadcasting the data according to the set program broadcasting address and sending a program broadcasting list;
the playing terminal is used for receiving the program playing list sent by the first network module, acquiring a program playing address, and receiving program data from the program playing address for playing.
The playing terminal comprises a second network module, a data receiving module and a media playing module which are connected in sequence.
The system also comprises an encryption system, wherein the encryption system is used for encrypting the demodulated program and storing the encrypted program to a configuration management system; the playing terminal comprises a second network module, a data receiving module, a data decryption module and a media playing module which are connected in sequence.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention realizes the receiving of multi-channel program signals by adopting a plurality of tuners and distributes live programs through a wired or wireless network, thereby realizing the function that a plurality of users connected to the network can watch different live programs at the same time in free by using other terminals including mobile phones. The method can provide personalized media watching function for the live television receiving equipment user, meet diversified entertainment requirements of people, and simultaneously can reduce unnecessary expense as much as possible.
Drawings
FIG. 1 is a schematic block diagram of the system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1:
a method for realizing multimedia program distribution comprises the following procedures:
program searching process of satellite live broadcast television receiving equipment
1) Identifying Tuner and setting the Tuner number of the equipment, and saving the Tuner and the equipment number to a configuration management system;
2) searching for programs on a Tuner and saving the results to the configuration management system;
3) repeating the step 2) until all Tuner is traversed;
4) configuring broadcast addresses of all programs by a configuration management system;
second, live broadcast program receiving flow distributed by live broadcast television receiving equipment
1) The configuration management system tunes Tuner1 to the set frequency point;
2) the configuration management system sets information of the program 1;
3) the distribution system receives the data of the program 1 and stores the data into a local memory;
4) repeating the steps 2) and 3) until all programs of the set frequency point are configured;
repeating the steps 1) to 4), and completing the setting of other Tuner respectively;
third, non-encrypted program distribution flow
1) The distribution system selects a distribution data packaging format according to the video coding type of the storage program in the flow two:
if the video coding is in the H264 format, distributing data and packaging according to the HLS protocol slice;
if the video coding is in Mpeg2 format, the distribution data is packaged according to RTMP protocol;
2) the network module provides and broadcasts the encapsulated data according to the program broadcasting address set;
3) the network module provides a program broadcasting list sending service based on http;
fourthly, encrypted program distribution process
1) The distribution system encrypts the data of the program stored in the flow two;
2) the distribution system selects a distribution data packaging format according to the video coding type of the encrypted program:
if the video coding is in the H264 format, distributing data and packaging according to the HLS protocol slice;
if the video coding is in Mpeg2 format, the distribution data is packaged according to RTMP protocol;
3) the network module provides and broadcasts the encapsulated data according to the program broadcasting address set;
4) the network module provides a program broadcasting list sending service based on http;
fifth, the flow of playing and distributing programs by the playing terminal
1) The playing terminal is connected to a local area network where the live television receiving equipment is located through a network;
2) the playing terminal acquires a program list provided by the network module in the flow by adopting an http protocol;
3) the playing terminal acquires a program playing address according to the selection of a user;
4) the playing terminal receives the program data from the broadcasting address in step 3
5) If the program is encrypted, the playing terminal decrypts the program;
6) the playing terminal decodes and plays the program data;
example 2:
with reference to fig. 1, a satellite television live broadcast system for realizing multimedia program distribution includes a satellite live broadcast television receiving device and a playing terminal, where the satellite live broadcast television receiving device includes a plurality of tuners, a descrambling system, a configuration management system, a distribution system, and a first network module, where:
a plurality of Tuner for receiving satellite live programs;
the descrambling system is used for demodulating the satellite live program received by Tuner;
the encryption system is used for encrypting the demodulated program information;
a configuration management system for storing Tuner quantity and encrypted programs, and configuring broadcast addresses of the programs; the Tuner is also used for tuning Tuner to a set frequency point and setting program data corresponding to Tuner;
the distribution system is used for receiving the program data corresponding to each Tuner from the configuration management system and storing the program data to the local; and for encapsulating the distributed program data according to the video encoding type of the program;
the first network module is used for acquiring the encapsulated data from the distribution system, broadcasting the data according to the set program broadcasting address and sending a program broadcasting list;
the playing terminal is used for receiving the program playing list sent by the first network module, acquiring a program playing address, and receiving program data from the program playing address for playing.
The playing terminal comprises a second network module, a data receiving module, a data decryption module and a media playing module which are connected in sequence.
The multimedia program distribution process comprises the following steps:
step S11: the satellite direct broadcast television receiving equipment identifies a plurality of built-in tuners, sets the number of the tuners and stores the number of the tuners in a configuration management system;
step S12: searching programs on all Tuner in sequence and storing the results to a configuration management system;
step S13: configuring the playing addresses of all programs by a configuration management system;
step S14: the configuration management system tunes each Tuner to a frequency point corresponding to the Tuner in sequence and sets program data; the distribution system respectively receives the program data corresponding to each Tuner and stores the program data into a local memory;
step S15: the distribution system selects an encapsulation format to encapsulate data according to the video coding type of the program data, encapsulates the data according to the set playing address, and sends a program playing list by adopting an http protocol;
step S16: the playing terminal is connected with the live television equipment through a network and acquires a program playing list by adopting an http protocol; the playing terminal selects a program playing address according to the selection of the user, receives program data from the program playing address and performs decoding playing.
Although the present invention has been described herein with reference to the illustrated embodiments thereof, which are intended to be preferred embodiments of the present invention, it is to be understood that the invention is not limited thereto, and that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure.
Claims (6)
1. A method for enabling multimedia program distribution, comprising:
step S1: a plurality of tuners are arranged in the satellite direct broadcast television receiving equipment, programs are searched on each Tuner in sequence, and the searched programs are demodulated, stored and respectively configured with broadcast addresses;
step S2: tuning each Tuner to a frequency point corresponding to the Tuner in sequence, setting program data, storing the set program data, and selecting corresponding packaging format package data according to the video coding type of the program data;
step S3: broadcasting data according to the set broadcasting address, and sending a program broadcasting list by adopting an http protocol;
step S4: and the playing terminal connected with the satellite live television equipment network acquires a program playing list by adopting an http protocol, acquires a program playing address according to user selection, receives program data from the program playing address and decodes and plays the program data.
2. The method of claim 1, wherein the step S2 further comprises data encryption before packaging data, and decryption is required before decoding and playing in the step S4.
3. The method of claim 1, wherein the video coding types include H264 format and Mpeg2 format, and wherein the video coding is in H264 format and encapsulated according to HLS protocol slices if the video coding is in H264 format, and encapsulated according to RTMP protocol if the video coding is in Mpeg2 format.
4. A satellite direct broadcast television system for realizing multimedia program distribution is characterized by comprising a satellite direct broadcast television receiving device and a playing terminal, wherein the satellite direct broadcast television receiving device comprises a plurality of tuners, a descrambling system, a configuration management system, a distribution system and a first network module, wherein:
a plurality of Tuner for receiving satellite live programs;
the descrambling system is used for demodulating the satellite live program received by Tuner;
a configuration management system for storing Tuner quantity and programs demodulated by the descrambling system and configuring broadcasting addresses of the programs; the Tuner is also used for tuning Tuner to a set frequency point and setting program data corresponding to Tuner;
the distribution system is used for receiving the program data corresponding to each Tuner from the configuration management system and storing the program data to the local; and for encapsulating the distributed program data according to the video encoding type of the program;
the first network module is used for acquiring the encapsulated data from the distribution system, broadcasting the data according to the set program broadcasting address and sending a program broadcasting list;
the playing terminal is used for receiving the program playing list sent by the first network module, acquiring a program playing address, and receiving program data from the program playing address for playing.
5. The system of claim 4, wherein the broadcast terminal comprises a second network module, a data receiving module and a media playing module, which are connected in sequence.
6. The system of claim 4, further comprising an encryption system for encrypting the demodulated program and storing the encrypted program to the configuration management system; the playing terminal comprises a second network module, a data receiving module, a data decryption module and a media playing module which are connected in sequence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010801258.7A CN111918091A (en) | 2020-08-11 | 2020-08-11 | Method for realizing multimedia program distribution and satellite television live broadcast system |
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| CN202010801258.7A CN111918091A (en) | 2020-08-11 | 2020-08-11 | Method for realizing multimedia program distribution and satellite television live broadcast system |
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| CN113347454A (en) * | 2021-05-18 | 2021-09-03 | 广西极光蓝科技有限公司 | Live broadcast system supporting multimedia synchronous live broadcast |
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