CN107682710A - A kind of net cast method and live broadcast system - Google Patents
A kind of net cast method and live broadcast system Download PDFInfo
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- CN107682710A CN107682710A CN201710938097.4A CN201710938097A CN107682710A CN 107682710 A CN107682710 A CN 107682710A CN 201710938097 A CN201710938097 A CN 201710938097A CN 107682710 A CN107682710 A CN 107682710A
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- video data
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Classifications
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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
-
- 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
- H04N21/632—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 using a connection between clients on a wide area network, e.g. setting up a peer-to-peer communication via Internet for retrieving video segments from the hard-disk of other client devices
-
- 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
- H04N21/6437—Real-time Transport Protocol [RTP]
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of net cast method and live broadcast system, net cast method includes：Client device sends request message to public network server, and request message is used to ask server device to obtain the audio, video data for net cast；Public network server establishes data-interface, is established a communications link by data-interface and server device；Public network server obtains audio, video data from server device, the audio, video data of acquisition is packaged into real-time messages host-host protocol RTMP or real time streaming transport protocol RTSP packet, and send packet to video server；Video server received data packet, and packet is transferred to client device.So, the limited capacities such as hardware device and the network bandwidth of existing service end can be solved the problems, such as, can support that more people's interactions are live simultaneously, improve live effect.
Description
Technical field
The present invention relates to net cast field, more particularly to a kind of net cast method and live broadcast system..
Background technology
With the development of video technique, there is the net cast technology of many, the direct seeding technique bag relatively popularized at present
Include point-to-point net cast technology.But current point-to-point net cast, net cast process can not be controlled, visitor
Family end and service end must use privately owned SDK simultaneously（Software Development Kit, SDK）Carry out
Exploitation, autgmentability is low, can not be attached in a browser, the limited capacity such as the hardware device of service end, network bandwidth, it is impossible to
Support that more people's interactions are live simultaneously.
The content of the invention
In view of this, the present invention proposes a kind of net cast method and live broadcast system, to solve above-mentioned technical problem.
First, to achieve the above object, the present invention proposes a kind of net cast method, described straight applied to live broadcast system
Broadcast system includes public network server, video server, client device and server device；Methods described includes：
The client device sends request message to the public network server, and the request message is used to ask the service end
Equipment obtains the audio, video data for net cast；
The public network server establishes data-interface, is established a communications link by the data-interface and the server device；
The public network server obtains audio, video data from the server device, and the audio, video data of the acquisition is packaged into
Real-time messages host-host protocol RTMP or real time streaming transport protocol RTSP packet, and send the number to the video server
According to bag；
The video server receives the packet, and the packet is transferred into the client device.
Alternatively, the request message is HTTP request message.
Alternatively, the public network server establishes data-interface, is built by the data-interface and the server device
Vertical the step of writing to each other, including：
The public network server establishes point-to-point P2P data-interfaces, passes through the point-to-point P2P data-interfaces and the service end
Equipment establishes a communications link.
Alternatively, the public network server from the server device obtain audio, video data the step of, including：
HTTP request message is converted into point-tor point P 2 P request message by the public network server, and the P2P request messages are passed
It is defeated by the server device；
The server device obtains audio, video data according to the P2P request messages, and by the audio, video data of the acquisition
It is transferred to the public network server.
Alternatively, the video server receives the packet, and the packet is transferred into the client
After step, methods described also includes：
The client end receives the packet, parses the audio, video data in the packet, and be resolved to described in broadcasting
Audio, video data.
In addition, to achieve the above object, the present invention also provides a kind of live broadcast system, and the live broadcast system includes public network service
Device, video server, client device and server device；
The client device sends request message to the public network server, and the request message is used to ask the service end
Equipment obtains the audio, video data for net cast；
The public network server establishes data-interface, is established a communications link by the data-interface and the server device；
The public network server obtains audio, video data from the server device, and the audio, video data of the acquisition is packaged into
Real-time messages host-host protocol RTMP or real time streaming transport protocol RTSP packet, and send the number to the video server
According to bag；
The video server receives the packet, and the packet is transferred into the client device.
Alternatively, the request message is HTTP request message.
Alternatively, the public network server establishes point-to-point P2P data-interfaces, passes through the point-to-point P2P data-interfaces
Established a communications link with the server device.
Alternatively, HTTP request message is converted into point-tor point P 2 P request message by the public network server, and by described in
P2P request message transmissions give the server device；
The server device obtains audio, video data according to the P2P request messages, and by the audio, video data of the acquisition
It is transferred to the public network server.
Alternatively, the client end receives the packet, parses the audio, video data in the packet, and play
The audio, video data being resolved to.
Compared to prior art, net cast method proposed by the invention and live broadcast system, methods described include：It is described
Client device sends request message to the public network server, and the request message is used to ask the server device to obtain
Audio, video data for net cast；The public network server establishes data-interface, passes through the data-interface and the clothes
Business end equipment establishes a communications link；The public network server obtains audio, video data from the server device, by the acquisition
Audio, video data be packaged into real-time messages host-host protocol RTMP or real time streaming transport protocol RTSP packet, and regarded to described
Frequency server sends the packet；The video server receives the packet, and the packet is transferred to described
Client device.So, client device sends request message to public network server, and public network server obtains from server device
Audio, video data, and audio, video data is transferred to video server, audio, video data is transferred to client by video server
Equipment, can solve the problems, such as the limited capacities such as hardware device and the network bandwidth of existing service end, more people can be supported to interact simultaneously
It is live, improve live effect.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of net cast method provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of live broadcast system provided in an embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In follow-up description, the suffix using such as " module ", " part " or " unit " for representing element is only
Be advantageous to the explanation of the present invention, itself there is no a specific meaning.Therefore, " module ", " part " or " unit " can mix
Ground uses.
Refering to Fig. 1, Fig. 1 is a kind of step flow chart of net cast method provided in an embodiment of the present invention, methods described
Applied in a live broadcast system, the live broadcast system is set including public network server, video server, client device and service end
It is standby, as shown in figure 1, the net cast method includes：
Step 101, the client device send request message to the public network server, and the request message is used to ask institute
State server device and obtain audio, video data for net cast.
Client device can include such as mobile phone, smart phone, notebook computer, digit broadcasting receiver, PDA
(personal digital assistant), PAD（Tablet personal computer）, PMP (portable media player), the mobile terminal of guider etc..
Video playback application and/or browser can be installed on client device.
In the present embodiment, the request message is HTTP（Hyper Text Transfer
Protocol, HTTP）.The audio, video data can be high definition, SD or ultra high-definition audio, video data.
Step 102, the public network server establish data-interface, are built by the data-interface and the server device
It is vertical to write to each other.
In the present embodiment, the data-interface is passed through, it is possible to achieve the sound between public network server and server device
Video data transmission.
In the present embodiment, server device is the mobile phone with camera, smart phone, notebook computer, number
Word radio receiver, PDA (personal digital assistant), PAD（Tablet personal computer）, PMP (portable media player), guider
Etc. mobile terminal.
Specifically, the step 102 specifically includes following steps：
The public network server is established point-to-point（Peer to Peer, P2P）Data-interface, by the P2P data-interfaces with
The server device establishes a communications link.
Step 103, the public network server obtain audio, video data from the server device, and the sound of the acquisition is regarded
Frequency is according to being packaged into real-time messages host-host protocol RTMP or real time streaming transport protocol RTSP packet, and to the Video service
Device sends the packet.
Specifically, the public network server from the server device obtain audio, video data the step of, including：
HTTP request message is converted into point-tor point P 2 P request message by the public network server, and the P2P request messages are passed
It is defeated by the server device；
The server device obtains audio, video data according to the P2P request messages, and by the audio, video data of the acquisition
It is transferred to the public network server.
So, HTTP request message can be converted into point-tor point P 2 P request message, and the P2P request messages are passed
The service end is defeated by, realizes the form conversion of request message, expands the species of client device.
Step 104, the video server receive the packet, and the packet are transferred into the client and set
It is standby.
So, the audio, video data of client device requests can be sent to client device, completes audio, video data
Transmission operation.
After step 104, can also include：
The client end receives the packet, parses the audio, video data in the packet, and be resolved to described in broadcasting
Audio, video data.
So, client device sends request message to public network server, and public network server obtains sound from server device
Video data, and audio, video data is transferred to video server, audio, video data is transferred to client and set by video server
It is standby, can solve the problems, such as the limited capacities such as hardware device and the network bandwidth of existing service end, can support that more people's interactions are straight simultaneously
Broadcast, improve live effect.
Referring to Fig. 2, such as a kind of Fig. 2 schematic diagrames of live broadcast system provided in an embodiment of the present invention, the live broadcast system includes
Video server 200, server device 201, public network server 202 and client device 203, wherein：
Described 203 send request message to the public network server 202, and the request message is used to ask the server device
201 obtain the audio, video data for net cast.
Client device 203 can include such as mobile phone, smart phone, notebook computer, digit broadcasting receiver,
PDA (personal digital assistant), PAD（Tablet personal computer）, PMP (portable media player), the mobile end of guider etc.
End.Video playback application and/or browser can be installed on client device.In live broadcast system, client device 203 can be with
Including two or more, one is only schematically drawn in fig. 2, is not limited herein.
In the present embodiment, the request message is HTTP（Hyper Text Transfer
Protocol, HTTP）.The audio, video data can be high definition, SD or ultra high-definition audio, video data.
The public network server 202 establishes data-interface, is established by the data-interface and the server device 201
Write to each other.
In the present embodiment, the data-interface is passed through, it is possible to achieve the sound between public network server and server device
Video data transmission.In live broadcast system, server device 201 can include two or more, only schematic in fig. 2
Draw one, be not limited herein.
In the present embodiment, server device 201 be the mobile phone with camera, smart phone, notebook computer,
Digit broadcasting receiver, PDA (personal digital assistant), PAD（Tablet personal computer）, PMP (portable media player), navigation dress
The mobile terminal put etc..
Specifically, the public network server 202 is established point-to-point（Peer to Peer, P2P）Data-interface, pass through institute
P2P data-interfaces are stated to establish a communications link with the server device 201.
The public network server 201 obtains audio, video data from the server device 201, by the audio frequency and video of the acquisition
Data are packaged into real-time messages host-host protocol（Real Time Messaging Protocol, RTMP）Or real time streaming transport protocol
The packet of (Real Time Streaming Protocol, RTSP), and send the packet to the video server.
Specifically, HTTP request message is converted into point-tor point P 2 P request message by the public network server 202, and will
The P2P request message transmissions give the server device；
The server device obtains audio, video data according to the P2P request messages, and by the audio, video data of the acquisition
It is transferred to the public network server.
So, HTTP request message can be converted into point-tor point P 2 P request message, and the P2P request messages are passed
The service end is defeated by, realizes the form conversion of request message, expands the species of client device.
The video server 200 receives the packet, and the packet is transferred into the client device
203。
So, the audio, video data of client device requests can be sent to client device, completes audio, video data
Transmission operation.
The client end 203 receives the packet, parses the audio, video data in the packet, and described in broadcasting
The audio, video data being resolved to.
So, client device sends request message to public network server, and public network server obtains sound from server device
Video data, and audio, video data is transferred to video server, audio, video data is transferred to client and set by video server
It is standby, can solve the problems, such as the limited capacities such as hardware device and the network bandwidth of existing service end, can support that more people's interactions are straight simultaneously
Broadcast, improve live effect.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Other identical element also be present in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
（Such as ROM/RAM, magnetic disc, CD）In, including some instructions are causing a station terminal equipment（It can be mobile phone, computer, take
Business device, air conditioner, or network equipment etc.）Perform the method described in each embodiment of the present invention.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
- A kind of 1. net cast method, applied to live broadcast system, it is characterised in that the live broadcast system include public network server, Video server, client device and server device；Methods described includes：The client device sends request message to the public network server, and the request message is used to ask the service end Equipment obtains the audio, video data for net cast；The public network server establishes data-interface, is established a communications link by the data-interface and the server device；The public network server obtains audio, video data from the server device, and the audio, video data of the acquisition is packaged into Real-time messages host-host protocol RTMP or real time streaming transport protocol RTSP packet, and send the number to the video server According to bag；The video server receives the packet, and the packet is transferred into the client device.
- 2. the method as described in claim 1, it is characterised in that the request message disappears for HTTP request Breath.
- 3. method as claimed in claim 2, it is characterised in that the public network server establishes data-interface, passes through the number The step of being established a communications link according to interface and the server device, including：The public network server establishes point-to-point P2P data-interfaces, passes through the point-to-point P2P data-interfaces and the service end Equipment establishes a communications link.
- 4. method as claimed in claim 3, it is characterised in that the public network server obtains from the server device The step of audio, video data, including：HTTP request message is converted into point-tor point P 2 P request message by the public network server, and the P2P request messages are passed It is defeated by the server device；The server device obtains audio, video data according to the P2P request messages, and by the audio, video data of the acquisition It is transferred to the public network server.
- 5. the method as described in claim 1, it is characterised in that the video server receives the packet, and by described in Packet was transferred to after the step of client, and methods described also includes：The client end receives the packet, parses the audio, video data in the packet, and be resolved to described in broadcasting Audio, video data.
- 6. a kind of live broadcast system, it is characterised in that the live broadcast system includes public network server, video server, client and set Standby and server device；The client device sends request message to the public network server, and the request message is used to ask the service end Equipment obtains the audio, video data for net cast；The public network server establishes data-interface, is established a communications link by the data-interface and the server device；The public network server obtains audio, video data from the server device, and the audio, video data of the acquisition is packaged into Real-time messages host-host protocol RTMP or real time streaming transport protocol RTSP packet, and send the number to the video server According to bag；The video server receives the packet, and the packet is transferred into the client device.
- 7. live broadcast system as claimed in claim 6, it is characterised in that the request message isHTTP request message.
- 8. live broadcast system as claimed in claim 7, it is characterised in that the public network server is established point-to-point P2P data and connect Mouthful, established a communications link by the point-to-point P2P data-interfaces with the server device.
- 9. live broadcast system as claimed in claim 8, it is characterised in thatHTTP request message is converted into point-tor point P 2 P request message by the public network server, and the P2P request messages are passed It is defeated by the server device；The server device obtains audio, video data according to the P2P request messages, and by the audio, video data of the acquisition It is transferred to the public network server.
- 10. live broadcast system as claimed in claim 6, it is characterised in that the client end receives the packet, parses institute State the audio, video data in packet, and the audio, video data being resolved to described in broadcasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710938097.4A CN107682710A (en) | 2017-10-11 | 2017-10-11 | A kind of net cast method and live broadcast system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710938097.4A CN107682710A (en) | 2017-10-11 | 2017-10-11 | A kind of net cast method and live broadcast system |
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| CN107682710A true CN107682710A (en) | 2018-02-09 |
Family
ID=61139552
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| CN201710938097.4A Pending CN107682710A (en) | 2017-10-11 | 2017-10-11 | A kind of net cast method and live broadcast system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110891051A (en) * | 2019-10-29 | 2020-03-17 | 视联动力信息技术股份有限公司 | Streaming media live broadcast method and device and computer readable storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917047A (en) * | 2012-10-17 | 2013-02-06 | 成都索贝数码科技股份有限公司 | System and method for realizing digital document physical distribution in Internet environment |
| CN103581699A (en) * | 2013-11-04 | 2014-02-12 | 广州华工信元通信技术有限公司 | Video playing method, streaming media server and streaming media playing system |
| CN104202616A (en) * | 2014-09-11 | 2014-12-10 | 北京阅联信息技术有限公司 | Live telecasting and reviewing method and system based on naked streams |
| CN104243998A (en) * | 2014-09-29 | 2014-12-24 | 广州华多网络科技有限公司 | Data processing method, data processing device and related servers |
| CN105897678A (en) * | 2015-12-03 | 2016-08-24 | 乐视云计算有限公司 | Network broadcast data processing method and device |
| CN106550282A (en) * | 2015-09-17 | 2017-03-29 | 北京视联动力国际信息技术有限公司 | A kind of player method and system of video data |
| CN106803974A (en) * | 2017-03-01 | 2017-06-06 | 北京牡丹电子集团有限责任公司数字电视技术中心 | The real-time retransmission method of live video stream |
-
2017
- 2017-10-11 CN CN201710938097.4A patent/CN107682710A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917047A (en) * | 2012-10-17 | 2013-02-06 | 成都索贝数码科技股份有限公司 | System and method for realizing digital document physical distribution in Internet environment |
| CN103581699A (en) * | 2013-11-04 | 2014-02-12 | 广州华工信元通信技术有限公司 | Video playing method, streaming media server and streaming media playing system |
| CN104202616A (en) * | 2014-09-11 | 2014-12-10 | 北京阅联信息技术有限公司 | Live telecasting and reviewing method and system based on naked streams |
| CN104243998A (en) * | 2014-09-29 | 2014-12-24 | 广州华多网络科技有限公司 | Data processing method, data processing device and related servers |
| CN106550282A (en) * | 2015-09-17 | 2017-03-29 | 北京视联动力国际信息技术有限公司 | A kind of player method and system of video data |
| CN105897678A (en) * | 2015-12-03 | 2016-08-24 | 乐视云计算有限公司 | Network broadcast data processing method and device |
| CN106803974A (en) * | 2017-03-01 | 2017-06-06 | 北京牡丹电子集团有限责任公司数字电视技术中心 | The real-time retransmission method of live video stream |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110891051A (en) * | 2019-10-29 | 2020-03-17 | 视联动力信息技术股份有限公司 | Streaming media live broadcast method and device and computer readable storage medium |
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Application publication date: 20180209 |