CN108880924A - A kind of video broadcasting method and device - Google Patents
A kind of video broadcasting method and device Download PDFInfo
- Publication number
- CN108880924A CN108880924A CN201710985897.1A CN201710985897A CN108880924A CN 108880924 A CN108880924 A CN 108880924A CN 201710985897 A CN201710985897 A CN 201710985897A CN 108880924 A CN108880924 A CN 108880924A
- Authority
- CN
- China
- Prior art keywords
- video data
- time
- networked terminals
- view networked
- loss value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0852—Delays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/764—Media network packet handling at the destination
-
- 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, rendering scenes according to MPEG-4 scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
-
- 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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440281—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the temporal resolution, e.g. by frame skipping
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/85—Assembly of content; Generation of multimedia applications
- H04N21/854—Content authoring
- H04N21/8547—Content authoring involving timestamps for synchronizing content
Abstract
The embodiment of the invention provides a kind of video broadcasting method and devices, and view networked server, the first view networked terminals and the second view networked terminals are deployed in depending on networking, the method includes：First view networked terminals receive the video data of view networked server is sent according to the downstream communications link to the first view networked terminals the second view networked terminals acquisition；First calculates the transmission time loss value of the video data depending on networked terminals within a preset time period；The video data is exported to connected equipment depending on networked terminals according to the transmission time loss value and is played out by first.When network jitter, the speed that video data plays is adjusted by transmission time loss value, frame per second can be adaptively adjusted, realize the at the uniform velocity broadcasting of video data, phenomena such as slowing down or video data is avoided Caton or F.F. occur when playing, guarantees viewing effect.
Description
Technical field
The present invention relates to view networking technology fields, fill more particularly to a kind of video broadcasting method and a kind of video playing
It sets.
Background technique
With the fast development of the network technology, the video communications such as video conference, video teaching the life of user, work,
Study etc. is widely available.
Video data is usually uniformly to send in transmitting terminal, keeps video data in the range of a certain frame per second, still, by
In network jitter or other factors, uniform transmission, receiving end possibility portion are not able to maintain during video data transmission
Sufficient amount of video data is not received between timesharing, it is also possible to which part-time receives the video data of excess, so as to cause view
Phenomena such as frequency is according to there is Caton or F.F. when playing.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind
A kind of playback method of the video data to solve the above problems and a kind of corresponding playing device of video data.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of video broadcasting methods, are deployed in depending on networking
Networked terminals are regarded depending on networked server, the first view networked terminals and second, the method includes：
First view networked terminals receive view networked server and send according to the downstream communications link to the first view networked terminals
, second view networked terminals acquisition video data；
First calculates the transmission time loss value of the video data depending on networked terminals within a preset time period；
First depending on networked terminals according to the transmission time loss value by the video data export to connected equipment into
Row plays.
Optionally, the described first transmission time for calculating the video data within a preset time period depending on networked terminals is damaged
Consumption value, including：
When reading the second view networked terminals transmission video data within a preset time period from the video data
The sending time of label is stabbed；
The receiving time stamp marked when video data described in inquire-receive；
Calculate the time difference between the sending time stamp and receiving time stamp；
Transmission time loss value is determined based on the time difference.
Optionally, described that transmission time loss value is determined based on the time difference, including：
Accumulate the n time differences；
The average value for calculating the n time differences, as transmission time loss value.
Optionally, described first the video data is exported to phase according to the transmission time loss value depending on networked terminals
Equipment even plays out, including：
Determine the original intervals value for playing the video data；
The transmission time loss value is added on the basis of the original intervals value, obtains target time interval
Value；
At interval of the target time interval value, exports video data to connected equipment described in a frame and play out.
Optionally, further include：
Judge whether to be more than the period；
The described first biography for calculating the video data within a preset time period depending on networked terminals is executed if so, returning
Defeated time loss value.
The embodiment of the invention also discloses a kind of video play device, view networked server, the are deployed in depending on networking
One view networked terminals and the second view networked terminals, described device are located in the first view networking, including：
Video data receiving module, for receiving view networked server according to the downlink communication chain to the first view networked terminals
Video data that road is sent, the second view networked terminals acquisition；
Transmission time loss value computing module, for calculating the transmission time of the video data within a preset time period
Loss value；
Video data output module, for the first view networked terminals according to the transmission time loss value by the video counts
It is played out according to output to connected equipment.
Optionally, the transmission time loss value computing module includes：
Sending time stabs reading submodule, for reading the second view connection within a preset time period from the video data
Network termination sends the sending time stamp marked when the video data；
Receiving time stamp inquiry submodule, the receiving time stamp for being marked when video data described in inquire-receive；
Time difference computational submodule, for calculating the time difference between the sending time stamp and receiving time stamp
Value；
Transmission time loss value determines submodule, for determining transmission time loss value based on the time difference.
Optionally, the transmission time loss value determines that submodule includes：
Time difference cumulative unit, for accumulating the n time differences；
Average calculation unit, for calculating the average value of the n time differences, as transmission time loss value.
Optionally, the video data output module includes：
Original intervals value determines submodule, for determining the original intervals value for playing the video data；
Target time interval value obtains submodule, for adding the transmission on the basis of original intervals value
Time loss value obtains target time interval value；
It is spaced output sub-module, for exporting video data described in a frame to phase at interval of the target time interval value
Equipment even plays out.
Optionally, further include：
Period judgment module, for judging whether to be more than the period；The transmission time is called if so, returning
Loss value computing module.
The embodiment of the present invention includes following advantages：
The characteristic of application view networking of the embodiment of the present invention, the first view networked terminals receive view networked server according to first
Depending on networked terminals downstream communications link send, second view networked terminals acquisition video data, within a preset time period
The transmission time loss value for calculating video data, video data is exported to connected equipment play out accordingly, tremble in network
When dynamic, the speed that video data plays is adjusted by transmission time loss value, frame per second can be adaptively adjusted, is realized
The at the uniform velocity broadcasting of video data guarantees viewing phenomena such as slowing down or video data is avoided Caton or F.F. occur when playing
Effect.
Detailed description of the invention
Fig. 1 is a kind of networking schematic diagram of view networking of one embodiment of the invention；
Fig. 2 is a kind of hardware structural diagram of node server of one embodiment of the invention；
Fig. 3 is a kind of hardware structural diagram of access switch of one embodiment of the invention；
Fig. 4 is that a kind of Ethernet association of one embodiment of the invention turns the hardware structural diagram of gateway；
Fig. 5 is a kind of step flow chart of video broadcasting method of one embodiment of the invention；
Fig. 6 is a kind of configuration diagram of view networked devices of one embodiment of the invention；
Fig. 7 is the step flow chart of another video broadcasting method of one embodiment of the invention；
Fig. 8 is a kind of structural block diagram of video play device of one embodiment of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
It is the important milestone of network Development depending on networking, is a real-time network, can be realized HD video real-time Transmission,
Push numerous Internet applications to HD video, high definition is face-to-face.
Real-time high-definition video switching technology is used depending on networking, it can be such as high in a network platform by required service
Clear video conference, Intellectualized monitoring analysis, emergency command, digital broadcast television, delay TV, the Web-based instruction, shows video monitoring
Field live streaming, VOD program request, TV Mail, individual character records (PVR), Intranet (manages) channel by oneself, intelligent video Broadcast Control, information publication
All be incorporated into a system platform etc. services such as tens of kinds of videos, voice, picture, text, communication, data, by TV or
Computer realizes that high-definition quality video plays.
Embodiment in order to enable those skilled in the art to better understand the present invention is introduced to depending on networking below：
Depending on networking, applied portion of techniques is as described below：
Network technology (Network Technology)
Traditional ethernet (Ethernet) is improved depending on the network technology innovation networked, with potential huge on network
Video flow.(Circuit is exchanged different from simple network packet packet switch (Packet Switching) or lattice network
Switching), Streaming demand is met using Packet Switching depending on networking technology.Has grouping depending on networking technology
Flexible, the simple and low price of exchange, is provided simultaneously with the quality and safety assurance of circuit switching, it is virtually electric to realize the whole network switch type
The seamless connection of road and data format.
Switching technology (Switching Technology)
Two advantages of asynchronous and packet switch that Ethernet is used depending on networking eliminate Ethernet under the premise of complete compatible and lack
It falls into, has the end-to-end seamless connection of the whole network, direct user terminal, directly carrying IP data packet.User data is in network-wide basis
It is not required to any format conversion.It is the more advanced form of Ethernet depending on networking, is a real-time exchange platform, can be realized at present mutually
The whole network large-scale high-definition realtime video transmission that networking cannot achieve pushes numerous network video applications to high Qinghua, unitizes.
Server technology (Server Technology)
It is different from traditional server, its Streaming Media depending on the server technology in networking and unified video platform
Transmission be built upon it is connection-oriented on the basis of, data-handling capacity is unrelated with flow, communication time, single network layer energy
Enough transmitted comprising signaling and data.For voice and video business, handled depending on networking and unified video platform Streaming Media
Complexity many simpler than data processing, efficiency substantially increase hundred times or more than traditional server.
Reservoir technology (Storage Technology)
The ultrahigh speed reservoir technology of unified video platform in order to adapt to the media content of vast capacity and super-flow and
Using state-of-the-art real time operating system, the programme information in server instruction is mapped to specific hard drive space, media
Content is no longer pass through server, and moment is directly delivered to user terminal, and user waits typical time less than 0.2 second.It optimizes
Sector distribution greatly reduces the mechanical movement of hard disc magnetic head tracking, and resource consumption only accounts for the 20% of the internet ad eundem IP, but
The concurrent flow greater than 3 times of traditional disk array is generated, overall efficiency promotes 10 times or more.
Network security technology (Network Security Technology)
Depending on the structural design networked by servicing independent licence system, equipment and the modes such as user data is completely isolated every time
The network security problem that puzzlement internet has thoroughly been eradicated from structure, does not need antivirus applet, firewall generally, has prevented black
The attack of visitor and virus, structural carefree secure network is provided for user.
It services innovative technology (Service Innovation Technology)
Business and transmission are fused together by unified video platform, whether single user, private user or a net
The sum total of network is all only primary automatic connection.User terminal, set-top box or PC are attached directly to unified video platform, obtain rich
The multimedia video service of rich colorful various forms.Unified video platform is traditional to substitute with table schema using " menu type "
Complicated applications programming, considerably less code, which can be used, can be realized complicated application, realize the new business innovation of " endless ".
Networking depending on networking is as described below：
It is a kind of central controlled network structure depending on networking, which can be Tree Network, Star network, ring network etc. class
Type, but centralized control node is needed to control whole network in network on this basis.
As shown in Figure 1, being divided into access net and Metropolitan Area Network (MAN) two parts depending on networking.
The equipment of access mesh portions can be mainly divided into 3 classes：Node server, access switch, terminal (including various machines
Top box, encoding board, memory etc.).Node server is connected with access switch, and access switch can be with multiple terminal phases
Even, and it can connect Ethernet.
Wherein, node server is the node that centralized control functions are played in access net, can control access switch and terminal.
Node server can directly be connected with access switch, can also directly be connected with terminal.
Similar, the equipment of metropolitan area mesh portions can also be divided into 3 classes：Metropolitan area server, node switch, node serve
Device.Metropolitan area server is connected with node switch, and node switch can be connected with multiple node servers.
Wherein, node server is the node server for accessing mesh portions, i.e. node server had both belonged to access wet end
Point, and belong to metropolitan area mesh portions.
Metropolitan area server is the node that centralized control functions are played in Metropolitan Area Network (MAN), can control node switch and node serve
Device.Metropolitan area server can be directly connected to node switch, can also be directly connected to node server.
It can be seen that be entirely a kind of central controlled network structure of layering depending on networking network, and node server and metropolitan area
The network controlled under server can be the various structures such as tree-shaped, star-like, cyclic annular.
Visually claim, access mesh portions can form unified video platform (part in virtual coil), and multiple unified videos are flat
Platform can form view networking；Each unified video platform can be interconnected by metropolitan area and wide area depending on networking.
Classify depending on networked devices
1.1 embodiment of the present invention can be mainly divided into 3 classes depending on the equipment in networking：Server, interchanger (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).Depending on networking can be divided on the whole Metropolitan Area Network (MAN) (or
National net, World Wide Web etc.) and access net.
1.2 equipment for wherein accessing mesh portions can be mainly divided into 3 classes：Node server, access switch (including ether
Net gateway), terminal (including various set-top boxes, encoding board, memory etc.).
The specific hardware structure of each access network equipment is：
Node server：
As shown in Fig. 2, mainly including Network Interface Module 201, switching engine module 202, CPU module 203, disk array
Module 204；
Wherein, Network Interface Module 201, the Bao Jun that CPU module 203, disk array module 204 are come in enter switching engine
Module 202；Switching engine module 202 look into the operation of address table 205 to the packet come in, to obtain the navigation information of packet；
And the packet is stored according to the navigation information of packet the queue of corresponding pack buffer 206；If the queue of pack buffer 206 is close
It is full, then it abandons；All pack buffer queues of 202 poll of switching engine mould, are forwarded if meeting the following conditions：1) port
It is less than to send caching；2) the queue package counting facility is greater than zero.Disk array module 204 mainly realizes the control to hard disk, including
The operation such as initialization, read-write to hard disk；CPU module 203 is mainly responsible between access switch, terminal (not shown)
Protocol processes, to address table 205 (including descending protocol packet address table, uplink protocol package address table, data packet addressed table)
Configuration, and, the configuration to disk array module 204.
Access switch：
As shown in figure 3, mainly including Network Interface Module (downstream network interface module 301, uplink network interface module
302), switching engine module 303 and CPU module 304；
Wherein, the packet (upstream data) that downstream network interface module 301 is come in enters packet detection module 305；Packet detection mould
Whether mesh way address (DA), source address (SA), type of data packet and the packet length of the detection packet of block 305 meet the requirements, if met,
It then distributes corresponding flow identifier (stream-id), and enters switching engine module 303, otherwise abandon；Uplink network interface mould
The packet (downlink data) that block 302 is come in enters switching engine module 303；The data packet that CPU module 204 is come in enters switching engine
Module 303；Switching engine module 303 look into the operation of address table 306 to the packet come in, to obtain the navigation information of packet；
If the packet into switching engine module 303 is that downstream network interface is gone toward uplink network interface, in conjunction with flow identifier
(stream-id) packet is stored in the queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
It abandons；If the packet into switching engine module 303 is not that downstream network interface is gone toward uplink network interface, according to packet
Navigation information is stored in the data packet queue of corresponding pack buffer 307；If the queue of the pack buffer 307 is close full,
Then abandon.
All pack buffer queues of 303 poll of switching engine module, are divided to two kinds of situations in embodiments of the present invention：
If the queue is that downstream network interface is gone toward uplink network interface, meets the following conditions and be forwarded：1)
It is less than that the port sends caching；2) the queue package counting facility is greater than zero；3) token that rate control module generates is obtained；
If the queue is not that downstream network interface is gone toward uplink network interface, meets the following conditions and be forwarded：
1) it is less than to send caching for the port；2) the queue package counting facility is greater than zero.
Rate control module 208 is configured by CPU module 204, to all downlink networks in programmable interval
Interface generates token toward the pack buffer queue that uplink network interface is gone, to control the code rate of forwarded upstream.
CPU module 304 is mainly responsible for the protocol processes between node server, the configuration to address table 306, and,
Configuration to rate control module 308.
Ethernet association turns gateway：
As shown in figure 4, mainly including Network Interface Module (downstream network interface module 401, uplink network interface module
402), switching engine module 403, CPU module 404, packet detection module 405, rate control module 408, address table 406, Bao Huan
Storage 407 and MAC adding module 409, MAC removing module 410.
Wherein, the data packet that downstream network interface module 401 is come in enters packet detection module 405；Packet detection module 405 is examined
Ethernet mac DA, ethernet mac SA, Ethernet length or frame type, the view networking mesh way address of measured data packet
DA, whether meet the requirements depending on networking source address SA, depending on networking data Packet type and packet length, corresponding stream is distributed if meeting
Identifier (stream-id)；Then, MAC DA, MAC SA, length or frame type are subtracted by MAC removing module 410
(2byte), and enter corresponding receive and cache, otherwise abandon；
Downstream network interface module 401 detects the transmission caching of the port, according to the view of packet networking mesh if there is Bao Ze
Address D A knows the ethernet mac DA of corresponding terminal, adds the ethernet mac DA of terminal, Ethernet assists the MAC for turning gateway
SA, Ethernet length or frame type, and send.
The function that Ethernet association turns other modules in gateway is similar with access switch.
Terminal：
It mainly include Network Interface Module, Service Processing Module and CPU module；For example, set-top box mainly connects including network
Mouth mold block, video/audio encoding and decoding engine modules, CPU module；Encoding board mainly includes Network Interface Module, video encoding engine
Module, CPU module；Memory mainly includes Network Interface Module, CPU module and disk array module.
The equipment of 1.3 metropolitan area mesh portions can be mainly divided into 2 classes：Node server, node switch, metropolitan area server.
Wherein, node switch mainly includes Network Interface Module, switching engine module and CPU module；Metropolitan area server mainly includes
Network Interface Module, switching engine module and CPU module are constituted.
2, networking data package definition is regarded
2.1 access network data package definitions
The data packet of access net mainly includes following sections：Destination address (DA), source address (SA), reserve bytes,
payload(PDU)、CRC。
As shown in the table, the data packet for accessing net mainly includes following sections：
| DA | SA | Reserved | Payload | CRC |
Wherein：
Destination address (DA) is made of 8 bytes (byte), and first character section indicates type (such as the various associations of data packet
Discuss packet, multicast packet, unicast packet etc.), be up to 256 kinds of possibility, the second byte to the 6th byte is metropolitan area net address,
Seven, the 8th bytes are access net address；
Source address (SA) is also to be made of 8 bytes (byte), is defined identical as destination address (DA)；
Reserve bytes are made of 2 bytes；
The part payload has different length according to the type of different datagrams, is if it is various protocol packages
64 bytes are 32+1024=1056 bytes if it is single group unicast packets words, are not restricted to above 2 kinds certainly；
CRC is made of 4 bytes, and calculation method follows the Ethernet CRC algorithm of standard.
2.2 Metropolitan Area Network (MAN) packet definitions
The topology of Metropolitan Area Network (MAN) is pattern, may there is 2 kinds, connection even of more than two kinds, i.e. node switching between two equipment
It can all can exceed that 2 kinds between machine and node server, node switch and node switch, node switch and node server
Connection.But the metropolitan area net address of metropolitan area network equipment is uniquely, to close to accurately describe the connection between metropolitan area network equipment
System, introduces parameter in embodiments of the present invention：Label uniquely to describe a metropolitan area network equipment.
(Multi-Protocol Label Switch, multiprotocol label are handed over by the definition of label and MPLS in this specification
Change) label definition it is similar, it is assumed that between equipment A and equipment B there are two connection, then data packet from equipment A to equipment B just
There are 2 labels, data packet also there are 2 labels from equipment B to equipment A.Label is divided into label, outgoing label, it is assumed that data packet enters
The label (entering label) of equipment A is 0x0000, and the label (outgoing label) when this data packet leaves equipment A may reform into
0x0001.The networking process of Metropolitan Area Network (MAN) is to enter network process under centralized control, also means that address distribution, the label of Metropolitan Area Network (MAN)
Distribution be all to be dominated by metropolitan area server, node switch, node server be all passively execute, this point with
The label distribution of MPLS is different, and the distribution of the label of MPLS is the result that interchanger, server are negotiated mutually.
As shown in the table, the data packet of Metropolitan Area Network (MAN) mainly includes following sections：
| DA | SA | Reserved | Label | Payload | CRC |
That is destination address (DA), source address (SA), reserve bytes (Reserved), label, payload (PDU), CRC.Its
In, the format of label, which can refer to, such as gives a definition：Label is 32bit, wherein high 16bit retains, only with low 16bit, its position
Set is between the reserve bytes and payload of data packet.
Based on the above-mentioned characteristic of view networking, one of the core concepts of the embodiments of the present invention is proposed, it then follows regard the association of networking
View, first is at the uniform velocity played to second depending on the video datas of networked terminals depending on networked terminals.
Referring to Fig. 5, a kind of step flow chart of video broadcasting method of one embodiment of the invention is shown, this method can
To be applied in view networking, it can specifically include following steps：
Step 501, the first view networked terminals receive view networked server according to the downlink communication to the first view networked terminals
Video data that link is sent, the second view networked terminals acquisition.
As shown in fig. 6, being deployed with view networked server 610, first in depending on networking 600 regards networked terminals 621 and one
Or multiple second view networked terminals 622.
In the concrete realization, first networked terminals 610 are regarded and second to regard networked terminals 620 can be set-top box
Box on (SetTopBox, STB), commonly referred to as set-top box or machine is the equipment of connection a television set and outside source, it
The digital signal of compression can be changed into television content, and shown on a television set.
In general, set-top box connects other equipment 630, for example, can connect camera and microphone, for acquiring view
The multi-medium datas such as frequency evidence and audio data, also can connect television set, more for playing video data and audio data etc.
Media data.
In embodiments of the present invention, first depending on networked terminals with multiple second view networked terminals can apply video lead to
In the scenes such as words, video conference, video monitoring, multiple second, which can pass through view depending on the multi-path video data that networked terminals acquire, joins
The agreement of net is sent to view networked server, and multi-path video data is forwarded to the first view networked terminals depending on networked server.
For example, second can encapsulate the data of video datas depending on networked terminals by regarding 2000 specifications of networking protocol as follows
Packet：
In this practical application, networking is regarded as the network with centralized control functions, including main control server and undernet
Equipment, which includes terminal, and one of the core idea depending on networking is, by notifying to exchange by main control server
Equipment is directed to when time downstream communications link of service matches table, and the table for being then based on the configuration carries out the transmission of data packet.
That is, including depending on the communication means in networking：
Main control server configuration is when time downstream communications link of service；
Work as time data packet of service for what source terminal was sent, is sent to target terminal (such as according to the downstream communications link
First view networked terminals).
In embodiments of the present invention, it configures when time downstream communications link of service includes：Notice is logical when time downlink of service
Believe that switching equipment involved in link matches table；
Furthermore, include according to downstream communications link transmission：Configured table is inquired, switching equipment is received to institute
Data packet is transmitted by corresponding port.
In the concrete realization, service includes unicast communication service and Multicast Communication Service.I.e. either cast communication is still
Unicast communication can realize the communication in view networking using the above-mentioned core idea with table-table.
As previously mentioned, view networking includes access mesh portions, in access net, which is node server, under
The grade network equipment includes access switch and terminal.
For the unicast communication service in access net, the main control server configuration is when time downlink communication chain of service
The step of road, may comprise steps of：
Sub-step S11, the service request protocol package that main control server is initiated according to source terminal are obtained when time downlink of service
Communication link information, downstream communications link information include participating in when time downlink of the main control server of service and access switch
Communication port information.
Sub-step S12, downstream communication ports information of the main control server according to control server, data packet inside it
The downlink port that setting is oriented to when time data packet of service in the table of location；And believe according to the downstream communication ports of access switch
Breath, to corresponding access switch sending port configuration order.
Sub-step S13, access switch according in port configuration command data packet addressed table inside it, setting when time
The downlink port that the data packet of service is oriented to.
For the Multicast Communication Service (such as video conference) in access net, main control server is obtained when under time service
The step of row communication link information may include following sub-step：
Sub-step S21, main control server obtain the service request agreement for the application Multicast Communication Service that target terminal is initiated
It wraps, includes the access net address of service type information, service content information and target terminal in service request protocol package；Wherein,
It include service number in service content information.
Sub-step S22, main control server according to the service number in preset content-address mapping table, extraction source
The access net address of terminal.
Sub-step S23, main control server obtains the corresponding multicast address of source terminal, and distributes to target terminal；And according to
According to the access net address of service type information, source terminal and target terminal, the communication link information when time multicast services is obtained.
Step 502, the first transmission time for calculating the video data within a preset time period depending on networked terminals is lost
Value.
In the concrete realization, first primary video data can be calculated in certain period of time (such as 1 second) depending on networked terminals
The time needed for forwarding arrival the first view networked terminals since being sent the second view networked terminals, by view networked server,
As time failure values.
Within the shorter period, it is believed that factor relevant to transmission is stable, it is therefore contemplated that every frame regards
Frequency according to transmitting during this period of time, elapsed time failure values it is consistent.
In one embodiment of the invention, step 502 may include following sub-step：
Sub-step S31 is read from the video data within a preset time period described in the transmission of the second view networked terminals
The sending time stamp marked when video data.
Sub-step S32, the receiving time stamp that when video data described in inquire-receive marks.
Sub-step S33 calculates the time difference between the sending time stamp and receiving time stamp.
Sub-step S34 determines transmission time loss value based on the time difference.
In embodiments of the present invention, the second view networked terminals can be marked when encapsulating the data packet of every frame video data
Timestamp, therefore, first can read the timestamp from the data packet of every frame video data depending on networked terminals, when as sending
Between stab.
In addition, first when receiving the data packet of every frame video data depending on networked terminals, it can recorde current timestamp, make
For receiving time stamp.
Receiving time stamp is subtracted into sending time stamp, can be obtained every frame video data from the time being sent between reception
Difference can calculate transmission time loss value with this.
In one example, n time difference can be accumulated during this period of time, calculate the average value of n time difference,
As transmission time loss value.
Wherein, n is positive integer, such as 10.
Certainly, the calculation of above-mentioned time loss value is intended only as example, in implementing the embodiments of the present invention, Ke Yigen
According to the calculation of actual conditions setting other times loss value, for example, the median, etc. of n time difference is taken, the present invention
Embodiment is without restriction to this.In addition, other than the calculation of above-mentioned time loss value, those skilled in the art can be with
The calculation of other time loss value is used according to actual needs, and the embodiment of the present invention is also without restriction to this.
Step 503, first the video data is exported to connected according to the transmission time loss value depending on networked terminals
Equipment play out.
In embodiments of the present invention, first depending on networked terminals according to transmission time loss value at the uniform velocity by video data export to
Connected equipment (such as television set) is shown, realizes that the video data of opposite end is at the uniform velocity shown locally.
In one embodiment of the invention, step 503 may include following sub-step：
Sub-step S41 determines the original intervals value for playing the video data.
Sub-step S42 adds the transmission time loss value on the basis of original intervals value, obtains target
Time interval value.
Sub-step S43, at interval of the target time interval value, export video data described in a frame to connected equipment into
Row plays.
In embodiments of the present invention, first depending on networked terminals can according to the frame per second of video data determine play it is original when
Between spacing value in addition transmission time loss value, can be obtained currently playing target time interval value, realize on this basis
The adjustment of frame per second.
At interval of target time interval value, then exports one-frame video data to connected equipment and play out.
For example, second regards the frame per second of networked terminals setting as 30 frames, but due to network jitter, the first view networked terminals are real
The frame per second that border receives is 20 frames between 30 frames, at this point it is possible to which frame per second is reduced to 25 by adjusting target time interval value
Frame, and export and be shown.
The characteristic of application view networking of the embodiment of the present invention, the first view networked terminals receive view networked server according to first
Depending on networked terminals downstream communications link send, second view networked terminals acquisition video data, within a preset time period
The transmission time loss value for calculating video data, video data is exported to connected equipment play out accordingly, tremble in network
When dynamic, the speed that video data plays is adjusted by transmission time loss value, frame per second can be adaptively adjusted, is realized
The at the uniform velocity broadcasting of video data guarantees viewing phenomena such as slowing down or video data is avoided Caton or F.F. occur when playing
Effect.
Referring to Fig. 7, the step flow chart of another video broadcasting method of one embodiment of the invention, this method are shown
It can be applied in view networking, can specifically include following steps：
Step 701, the first view networked terminals receive view networked server according to the downlink communication to the first view networked terminals
Video data that link is sent, the second view networked terminals acquisition.
Step 702, the first transmission time for calculating the video data within a preset time period depending on networked terminals is lost
Value.
Step 703, first the video data is exported to connected according to the transmission time loss value depending on networked terminals
Equipment play out.
Step 704, judge whether to be more than the period；If so, returning to step 702.
In practical applications, first depending on networked terminals and second be depending on the video communication between networked terminals it is lasting, i.e.,
Second acquires video data depending on networked terminals and is sent to view networked server, depending on networked server by the video data send to
First view networked terminals, this process is lasting.
In a longer period of time, factor (such as network) relevant to transmission is usually continually changing, therefore, in the present invention
In embodiment, it can be syncopated as multiple shorter periods (such as 1 second), real-time timing during video communication, judgement is
No is more than the period.
If it exceeds the period, then recalculate transmission time loss value.
If being less than the period, it is lost during this period of time using the transmission time calculated during this period of time
Value, and judge whether to be more than the period again.
With this, constantly the adaptively variation of factor (such as network) relevant to transmission, optimizes persistently broadcasting for video data
Put effect.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Referring to Fig. 8, a kind of structural block diagram of video play device of one embodiment of the invention is shown, in view networking
View networked server, the first view networked terminals and the second view networked terminals are deployed with, described device is located in the first view networking, tool
Body may include following module：
Video data receiving module 801 is logical according to the downlink to the first view networked terminals for receiving view networked server
Believe the video data of link is sent the second view networked terminals acquisition；
Transmission time loss value computing module 802, for calculating the transmission of the video data within a preset time period
Time loss value；
Video data output module 803, for the first view networked terminals according to the transmission time loss value by the view
Frequency is played out according to output to connected equipment.
In one embodiment of the invention, the transmission time loss value computing module 802 includes：
Sending time stabs reading submodule, for reading the second view connection within a preset time period from the video data
Network termination sends the sending time stamp marked when the video data；
Receiving time stamp inquiry submodule, the receiving time stamp for being marked when video data described in inquire-receive；
Time difference computational submodule, for calculating the time difference between the sending time stamp and receiving time stamp
Value；
Transmission time loss value determines submodule, for determining transmission time loss value based on the time difference.
In one embodiment of the invention, the transmission time loss value determines that submodule includes：
Time difference cumulative unit, for accumulating the n time differences；
Average calculation unit, for calculating the average value of the n time differences, as transmission time loss value.
In one embodiment of the invention, the video data output module 803 includes：
Original intervals value determines submodule, for determining the original intervals value for playing the video data；
Target time interval value obtains submodule, for adding the transmission on the basis of original intervals value
Time loss value obtains target time interval value；
It is spaced output sub-module, for exporting video data described in a frame to phase at interval of the target time interval value
Equipment even plays out.
In one embodiment of the invention, further include：
Period judgment module, for judging whether to be more than the period；The transmission time is called if so, returning
Loss value computing module 802.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Above to a kind of video broadcasting method provided by the present invention and a kind of video play device, detailed Jie has been carried out
It continues, used herein a specific example illustrates the principle and implementation of the invention, and the explanation of above embodiments is only
It is to be used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to this hair
Bright thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not manage
Solution is limitation of the present invention.
Claims (10)
1. a kind of video broadcasting method, which is characterized in that be deployed with view networked server, the first view networked terminals in depending on networking
Networked terminals are regarded with second, the method includes：
First view networked terminals receive it is that view networked server is sent according to the downstream communications link to the first view networked terminals, the
The video data of two view networked terminals acquisitions；
First calculates the transmission time loss value of the video data depending on networked terminals within a preset time period；
The video data is exported to connected equipment depending on networked terminals according to the transmission time loss value and is broadcast by first
It puts.
2. the method according to claim 1, wherein described first counts within a preset time period depending on networked terminals
The transmission time loss value of the video data is calculated, including：
Read label when the second view networked terminals send the video data within a preset time period from the video data
Sending time stamp；
The receiving time stamp marked when video data described in inquire-receive；
Calculate the time difference between the sending time stamp and receiving time stamp；
Transmission time loss value is determined based on the time difference.
3. according to the method described in claim 2, it is characterized in that, described determine that transmission time is lost based on the time difference
Value, including：
Accumulate the n time differences；
The average value for calculating the n time differences, as transmission time loss value.
4. method according to claim 1 or 2 or 3, which is characterized in that the first view networked terminals are according to the transmission
The video data is exported to connected equipment and is played out by time loss value, including：
Determine the original intervals value for playing the video data；
The transmission time loss value is added on the basis of the original intervals value, obtains target time interval value；
At interval of the target time interval value, exports video data to connected equipment described in a frame and play out.
5. method according to claim 1 or 2 or 3, which is characterized in that further include：
Judge whether to be more than the period；
If so, when return execution described first calculates the transmission of the video data depending on networked terminals within a preset time period
Between loss value.
6. a kind of video play device, which is characterized in that be deployed with view networked server, the first view networked terminals in depending on networking
With the second view networked terminals, described device is located in the first view networking, including：
Video data receiving module is sent out for receiving view networked server according to the downstream communications link to the first view networked terminals
Video data send, the second view networked terminals acquisition；
Transmission time loss value computing module, the transmission time for calculating the video data within a preset time period are lost
Value；
Video data output module, it is according to the transmission time loss value that the video data is defeated for the first view networked terminals
It is played out out to connected equipment.
7. device according to claim 6, which is characterized in that the transmission time loss value computing module includes：
Sending time stabs reading submodule, for reading the networking of the second view within a preset time period from the video data eventually
End sends the sending time stamp marked when the video data；
Receiving time stamp inquiry submodule, the receiving time stamp for being marked when video data described in inquire-receive；
Time difference computational submodule, for calculating the time difference between the sending time stamp and receiving time stamp；
Transmission time loss value determines submodule, for determining transmission time loss value based on the time difference.
8. device according to claim 7, which is characterized in that the transmission time loss value determines that submodule includes：
Time difference cumulative unit, for accumulating the n time differences；
Average calculation unit, for calculating the average value of the n time differences, as transmission time loss value.
9. device described according to claim 6 or 7 or 8, which is characterized in that the video data output module includes：
Original intervals value determines submodule, for determining the original intervals value for playing the video data；
Target time interval value obtains submodule, for adding the transmission time on the basis of original intervals value
Loss value obtains target time interval value；
It is spaced output sub-module, at interval of the target time interval value, exporting video data described in a frame to connected
Equipment plays out.
10. device described according to claim 6 or 7 or 8, which is characterized in that further include：
Period judgment module, for judging whether to be more than the period；The transmission time loss is called if so, returning
It is worth computing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985897.1A CN108880924A (en) | 2017-10-20 | 2017-10-20 | A kind of video broadcasting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985897.1A CN108880924A (en) | 2017-10-20 | 2017-10-20 | A kind of video broadcasting method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108880924A true CN108880924A (en) | 2018-11-23 |
Family
ID=64325444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710985897.1A Pending CN108880924A (en) | 2017-10-20 | 2017-10-20 | A kind of video broadcasting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108880924A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110673813A (en) * | 2019-09-29 | 2020-01-10 | 百度在线网络技术（北京）有限公司 | Data processing method and device, electronic equipment and medium |
| CN111491016A (en) * | 2020-04-02 | 2020-08-04 | 北京代码乾坤科技有限公司 | Synchronous data processing method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552909A (en) * | 2009-04-28 | 2009-10-07 | 山东大学 | Frame rate controlling method based on wireless video monitoring |
| CN103916716A (en) * | 2013-01-08 | 2014-07-09 | 北京信威通信技术股份有限公司 | Code rate smoothing method of video live transmission through wireless network |
| US9491398B1 (en) * | 2010-12-21 | 2016-11-08 | Pixelworks, Inc. | System and method for processing assorted video signals |
-
2017
- 2017-10-20 CN CN201710985897.1A patent/CN108880924A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552909A (en) * | 2009-04-28 | 2009-10-07 | 山东大学 | Frame rate controlling method based on wireless video monitoring |
| US9491398B1 (en) * | 2010-12-21 | 2016-11-08 | Pixelworks, Inc. | System and method for processing assorted video signals |
| CN103916716A (en) * | 2013-01-08 | 2014-07-09 | 北京信威通信技术股份有限公司 | Code rate smoothing method of video live transmission through wireless network |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110673813A (en) * | 2019-09-29 | 2020-01-10 | 百度在线网络技术（北京）有限公司 | Data processing method and device, electronic equipment and medium |
| CN111491016A (en) * | 2020-04-02 | 2020-08-04 | 北京代码乾坤科技有限公司 | Synchronous data processing method and device |
| CN111491016B (en) * | 2020-04-02 | 2023-08-25 | 北京代码乾坤科技有限公司 | Synchronous data processing method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110072143A (en) | A kind of method for decoding video stream and device | |
| CN108632559B (en) | A kind of video data handling procedure and device | |
| CN108243153A (en) | A kind of method and apparatus in the broadcasting TV programme in networking | |
| CN108173895A (en) | A kind of communication means and device | |
| CN109167960A (en) | A kind of processing method and system of video stream data | |
| CN108322809A (en) | The method and system that control video file plays under depending on networking under a kind of internet | |
| CN110267099A (en) | A kind of data transmission method and view networked terminals based on view networking | |
| CN110351506A (en) | A kind of video recording method, device, electronic equipment and readable storage medium storing program for executing | |
| CN107888938B (en) | A kind of network video playback method and its device | |
| CN109246486A (en) | A kind of framing method and device | |
| CN110049346A (en) | A kind of method and system of net cast | |
| CN108307212A (en) | A kind of file order method and device | |
| CN108243343A (en) | A kind of point bit distribution statistical method and its server based on regarding networking | |
| CN109284265A (en) | A kind of date storage method and system | |
| CN108881818A (en) | A kind of transmission method and device of video data | |
| CN110062194A (en) | A kind of processing method of audio, video data, device and device and storage medium | |
| CN110139124A (en) | A kind for the treatment of method and apparatus that monitoring is recorded | |
| CN109491783A (en) | A kind of acquisition methods and system of memory usage | |
| CN108880924A (en) | A kind of video broadcasting method and device | |
| CN110022500A (en) | A kind of loss treating method and device | |
| CN110121075A (en) | A kind of direct seeding operation method and apparatus | |
| CN109842630A (en) | Method for processing video frequency and device | |
| CN109768964A (en) | Audio-video display methods and device | |
| CN109121017A (en) | A kind of view intranet network method for evaluating quality and device | |
| CN108881148A (en) | A kind of data capture method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181123 |
|
| RJ01 | Rejection of invention patent application after publication |