CN108989831A - A kind of network REC method and apparatus of multi-code stream - Google Patents
A kind of network REC method and apparatus of multi-code stream Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
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- 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
- H04L65/762—Media network packet handling at the source
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- 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
- H04L65/80—Responding to QoS
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Abstract
The present invention provides a kind of network REC method and apparatus of multi-code stream.The described method includes: the network flow data of view networked server acquisition is obtained, wherein the network flow data is the binary coding based on view networking protocol；According to network flow data described in the encoding and decoding protocol analysis of view networking, the video data and audio data are extracted from the network flow data；The simultaneously synthesizing video data and audio data obtain multiple multimedia files of corresponding different specified code streams and/or specified format；The multiple multimedia file is sent to the view networked server.Through the embodiment of the present invention, there is higher compatibility to the format of the video/audio received, substantially increases the parallel dynamic retractility for recording number, meet the use of the video resource of different scenes, there is high flexibility.
Description
Technical field
The present invention relates to view networking technology fields, more particularly to the network REC method and a kind of multi-code of a kind of multi-code stream
The network REC device of stream.
Background technique
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.
Traditional multimedia document recording mode is commonly based on hardware analog input card, will be regarded using the connecting line of video and audio
Audio signal output be connected to board, then board realize data reception and file generated, receive the format of file signal with
And the generation file format of output has certain limitation, and the number that can be recorded parallel simultaneously also will be by the number of hardware version
Purpose limitation, expansibility and flexibility are poor.
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 network REC method of the multi-code stream to solve the above problems and the network REC device of corresponding multi-code stream.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of network REC method of multi-code stream, the methods
Include:
The network flow data of view networked server acquisition is obtained, wherein the network flow data is based on view networking protocol
Binary coding；
According to network flow data described in the encoding and decoding protocol analysis of view networking, the view is extracted from the network flow data
Frequency evidence and audio data；
The simultaneously synthesizing video data and audio data obtain the more of corresponding different specified code streams and/or specified format
A multimedia file；
The multiple multimedia file is sent to the view networked server.
Optionally, the simultaneously synthesizing video data and audio data obtain corresponding different specified code streams and/or refer to
The multiple multimedia files for the formula that fixes, comprising:
Receive the specified order that user issues for code stream and format；
According to the specified order, the video data and audio data are encoded, obtain corresponding to different designated codes
The multiple video datas and audio data of stream；
According to the specified order, multiple video datas of corresponding different specified code streams and audio data are saved as simultaneously
Multiple multimedia files of corresponding different specified formats.
Optionally, the specified code stream includes at least one of 500k, 800k, 2M.
Optionally, the format of the multimedia file of generation include: TS, mp4, flv, m2v, avi, mpg, tp, asf,
dat、ram。
To solve the above-mentioned problems, the embodiment of the invention also discloses a kind of network REC device of multi-code stream, the dresses
It sets and includes:
Network flow data obtains module, for obtaining the network flow data of view networked server acquisition, wherein the network
Flow data is the binary coding based on view networking protocol；
Video/audio extraction module, for the network flow data according to the encoding and decoding protocol analysis of view networking, from institute
It states and extracts the video data and audio data in network flow data；
Multimedia file synthesis module is used for the simultaneously synthesizing video data and audio data, obtains corresponding to different fingers
Determine multiple multimedia files of code stream and/or specified format；
Multimedia file sending module, for the multiple multimedia file to be sent to the view networked server.
Optionally, the multimedia file synthesis module includes:
Specified order receiving submodule, the specified order issued for receiving user for code stream and format；
Video/audio encoding submodule, for according to the specified order, to the video data and audio data into
Row coding obtains the multiple video datas and audio data of corresponding different specified code streams；
Multimedia file synthesizes submodule, for according to the specified order, corresponding difference to be specified to multiple views of code streams
Frequency evidence and audio data save as multiple multimedia files of corresponding different specified formats simultaneously.
Optionally, the specified code stream includes at least one of 500k, 800k, 2M.
Optionally, the format of the multimedia file of generation include: TS, mp4, flv, m2v, avi, mpg, tp, asf,
dat、ram。
The embodiment of the present invention includes following advantages:
Obtain view networked server acquisition network flow data, due to network flow data be based on view networking protocol two into
System coding, therefore the network flow data of multiple format can be supported to access, have more to the format of the video/audio received
High compatibility.
According to the encoding and decoding protocol analysis network flow data of view networking, video data and audio are extracted from network flow data
Data；Simultaneously synthesizing video data and audio data obtain multiple multimedias of corresponding different specified code streams and/or specified format
File.Synthesize multimedia file recording process independent of hardware acquire characteristic, multimedia file can with simultaneously synthesizing multiple,
The parallel dynamic retractility for recording number is substantially increased, application and userbase are met, there is high scalability.
Multiple multimedia files are sent to view networked server, the multimedia of a variety of specified code stream specified formats of synthesis
File meets the use of the video resource of different scenes, has high flexibility.
Detailed description of the invention
Fig. 1 is a kind of networking schematic diagram of view networking of the invention；
Fig. 2 is a kind of hardware structural diagram of node server of the invention；
Fig. 3 is a kind of hardware structural diagram of access switch of the invention；
Fig. 4 is the hardware structural diagram that a kind of Ethernet association of the invention turns gateway；
Fig. 5 is the step flow chart of the network REC method of multi-code stream of the invention；
Fig. 6 is the structural block diagram of the network REC device of multi-code stream 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.
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: server depending on the equipment in networking, 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 are as follows:
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: 1) port if meeting the following conditions
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 is 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
Access net data packet mainly include 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, using the net of multi-code stream
Network method for recording realizes that multiple multimedia files are recorded simultaneously, with meet demand.
Referring to Fig. 5, a kind of step flow chart of the network REC embodiment of the method for multi-code stream of the invention is shown, specifically
It may include steps of:
Step 501, the network flow data of view networked server acquisition is obtained, wherein the network flow data is to join based on view
The binary coding of fidonetFido.
In the present embodiment, the multi-code flow network for carrying out multimedia file is recorded, and obtains view networking from view networked server end
The network flow data of collection of server.Specifically, vision signal and audio signal are acquired depending on networked server, by vision signal and
Audio signal is converted to the compressed data of video and audio, that is, is converted to network flow data, and network flow data is based on view networking
The binary coding of agreement.When carrying out more stream-recordings of multimedia file, obtain from view networked terminals based on view networking protocol
Binary-coded network flow data.
Step 502, the network flow data according to the encoding and decoding protocol analysis of view networking, mentions from the network flow data
Take the video data and audio data.
In the present embodiment, have depending on networking protocol different from TCP/IP (Transmission Control Protocol/
Internet Protocol, transmission control protocol/Internet Protocol also known as network communication protocol) protocol rule.Net
Network flow data is encrypted according to depending on networking encoding and decoding agreement, after getting network flow data depending on networked server, according to view
The encoding and decoding protocol analysis network flow data of networking extracts video data and audio data from network flow data.
Step 503, the simultaneously synthesizing video data and audio data obtain corresponding different specified code streams and/or specify
Multiple multimedia files of format.
In the present embodiment, after extracting video data and audio data, code stream and the format synthesis specified according to user are more
A multimedia file, can specifically include following steps:
Sub-step one receives the specified order that user issues for code stream and format.
In the present embodiment, user issues specified order according to demand, may include the multimedia text of synthesis in specified order
The quantity of part, the code stream and format of each multimedia file.Preferably, the specified code stream include in 500k, 800k, 2M at least
It is a kind of.Code stream (Data Rate) refers to the data traffic that video file uses within the unit time, is also code rate, is that video is compiled
Most important part in image quality control in code.Under same resolution ratio, the code stream of video file is bigger, compression ratio with regard to smaller,
Image quality is better.Preferably, the format of the multimedia file of generation include: TS, mp4, flv, m2v, avi, mpg,
tp,asf,dat,ram.For example, user issues specified order according to demand, need to record three multimedia files, matchmaker more than three
The code stream of body file is respectively 500k, 800k, 2M, and the format of three multimedia files is respectively mp4, ts, flv.
Sub-step two encodes the video data and audio data according to the specified order, obtains corresponding to not
With the multiple video datas and audio data of specified code stream.
In the present embodiment, after receiving specified order, according to the specified code stream in specified order, to video data and audio
Data are encoded, and the multiple video datas and audio data of corresponding different specified code streams are obtained.For example, specified code stream is
500k, 800k, 2M encode video data and audio data according to specified code stream, and obtaining code stream is 500k, 800k, 2M
Three video datas and three audio datas.
Sub-step three, according to the specified order, by the multiple video datas and audio data of corresponding different specified code streams
Multiple multimedia files of corresponding different specified formats are saved as simultaneously.
It,, will according to the specified format in specified order after being encoded to video data and audio data in the present embodiment
Video data and audio data after coding save as multiple multimedia files of specified format, for example, specified format is respectively
Code stream is then respectively three video datas and three simultaneously synthesizing code streams of audio data of 500k, 800k, 2M by mp4, ts, flv
Be mp4 for 500k format, code stream be 800k format be ts, code stream is three multimedia files that 2M format is flv.
Step 504, the multiple multimedia file is sent to the view networked server.
In the present embodiment, after synthesizing multiple multimedia files, the multimedia file of synthesis is sent to view networked server,
It can be from the shared multimedia file recorded of view networked server depending on networked terminals.
In conclusion obtaining the network flow data of view networked server acquisition, wherein network fluxion in the embodiment of the present invention
According to for the binary coding based on view networking protocol, thus the present invention have to the format of the audio, video data received it is higher
Compatibility.According to the encoding and decoding protocol analysis network flow data of view networking, video data and audio are extracted from network flow data
Data；Simultaneously synthesizing video data and audio data obtain multiple multimedias of corresponding different specified code streams and/or specified format
File, the recording of multimedia file acquires characteristic independent of hardware in the present invention, substantially increases and parallel records the dynamic of number
State retractility meets application and userbase, has high scalability.Multiple multimedia files are sent to view networked server,
The multimedia file of a variety of specified code stream specified formats of synthesis meets the use of the video resource of different scenes, has high
Flexibility.
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. 6, a kind of structural block diagram of the network REC device of multi-code stream of the invention, described device packet are shown
It includes:
Network flow data obtains module 601, for obtaining the network flow data of view networked server acquisition, wherein the net
Network flow data is the binary coding based on view networking protocol；
Video/audio extraction module 602, for according to view networking encoding and decoding protocol analysis described in network flow data, from
The video data and audio data are extracted in the network flow data；
Multimedia file synthesis module 603 is used for the simultaneously synthesizing video data and audio data, obtains corresponding difference
Multiple multimedia files of specified code stream and/or specified format；
Multimedia file sending module 604, for the multiple multimedia file to be sent to the view networked server.
In a preferred embodiment of the present invention, the multimedia file synthesis module may include:
Specified order receiving submodule, the specified order issued for receiving user for code stream and format；
Video/audio encoding submodule, for according to the specified order, to the video data and audio data into
Row coding obtains the multiple video datas and audio data of corresponding different specified code streams；
Multimedia file synthesizes submodule, for according to the specified order, corresponding difference to be specified to multiple views of code streams
Frequency evidence and audio data save as multiple multimedia files of corresponding different specified formats simultaneously.
In a preferred embodiment of the present invention, the specified code stream includes at least one of 500k, 800k, 2M.
In a preferred embodiment of the present invention, the format of the multimedia file of generation include: TS, mp4, flv,
m2v、avi、mpg、tp、asf、dat、ram。
In conclusion obtaining the network flow data of view networked server acquisition, wherein network fluxion in the embodiment of the present invention
According to for the binary coding based on view networking protocol, thus the present invention have to the format of the audio, video data received it is higher
Compatibility.According to the encoding and decoding protocol analysis network flow data of view networking, video data and audio are extracted from network flow data
Data；Simultaneously synthesizing video data and audio data obtain multiple multimedias of corresponding different specified code streams and/or specified format
File, the recording of multimedia file acquires characteristic independent of hardware in the present invention, substantially increases and parallel records the dynamic of number
State retractility meets application and userbase, has high scalability.Multiple multimedia files are sent to view networked server,
The multimedia file of a variety of specified code stream specified formats of synthesis meets the use of the video resource of different scenes, has high
Flexibility.
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.
The network REC of the network REC method to a kind of multi-code stream provided by the present invention and a kind of multi-code stream fills above
It sets, is described in detail, used herein a specific example illustrates the principle and implementation of the invention, above
The explanation of embodiment is merely used to help understand method and its core concept of the invention；Meanwhile for the general skill of this field
Art personnel, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this
Description should not be construed as limiting the invention.
Claims (8)
1. a kind of network REC method of multi-code stream, which is characterized in that the described method includes:
Obtain view networked server acquisition network flow data, wherein the network flow data be based on view networking protocol two into
System coding；
According to network flow data described in the encoding and decoding protocol analysis of view networking, the video counts are extracted from the network flow data
According to and audio data；
The simultaneously synthesizing video data and audio data obtain the multiple more of corresponding different specified code streams and/or specified format
Media file；
The multiple multimedia file is sent to the view networked server.
2. the method according to claim 1, wherein the simultaneously synthesizing video data and audio data,
Obtain multiple multimedia files of corresponding different specified code streams and/or specified format, comprising:
Receive the specified order that user issues for code stream and format；
According to the specified order, the video data and audio data are encoded, obtain corresponding different specified code streams
Multiple video datas and audio data；
According to the specified order, multiple video datas of corresponding different specified code streams and audio data are saved as into correspondence simultaneously
Multiple multimedia files of different specified formats.
3. the method according to claim 1, wherein the specified code stream includes at least one in 500k, 800k, 2M
Kind.
4. the method according to claim 1, wherein generate the multimedia file format include: TS,
mp4、flv、m2v、avi、mpg、tp、asf、dat、ram。
5. a kind of network REC device of multi-code stream, which is characterized in that described device includes:
Network flow data obtains module, for obtaining the network flow data of view networked server acquisition, wherein the network flow number
According to for based on the binary coding for regarding networking protocol；
Video/audio extraction module, for the network flow data according to the encoding and decoding protocol analysis of view networking, from the net
The video data and audio data are extracted in network flow data；
Multimedia file synthesis module is used for the simultaneously synthesizing video data and audio data, obtains corresponding to different designated codes
Multiple multimedia files of stream and/or specified format；
Multimedia file sending module, for the multiple multimedia file to be sent to the view networked server.
6. device according to claim 5, which is characterized in that the multimedia file synthesis module includes:
Specified order receiving submodule, the specified order issued for receiving user for code stream and format；
Video/audio encoding submodule, for being compiled to the video data and audio data according to the specified order
Code obtains the multiple video datas and audio data of corresponding different specified code streams；
Multimedia file synthesizes submodule, for according to the specified order, corresponding difference to be specified to multiple video counts of code streams
According to the multiple multimedia files for saving as corresponding different specified formats simultaneously with audio data.
7. device according to claim 5, which is characterized in that the specified code stream includes at least one in 500k, 800k, 2M
Kind.
8. device according to claim 5, which is characterized in that the format of the multimedia file of generation include: TS,
mp4、flv、m2v、avi、mpg、tp、asf、dat、ram。
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