CN110166833A - A kind of video stream transcoding method and device - Google Patents
A kind of video stream transcoding method and device Download PDFInfo
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- CN110166833A CN110166833A CN201910314616.9A CN201910314616A CN110166833A CN 110166833 A CN110166833 A CN 110166833A CN 201910314616 A CN201910314616 A CN 201910314616A CN 110166833 A CN110166833 A CN 110166833A
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- transcoding
- video stream
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- transcoded
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—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
- H04N21/440218—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 transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
Abstract
The embodiment of the invention provides a kind of video stream transcoding method and apparatus, which comprises receives the video stream transcoding message that terminal is sent；The video stream transcoding message includes video flowing to be transcoded and format information to be transcoded；Transcoding operation is executed to the video flowing to be transcoded based on the format information to be transcoded, the video flowing after obtaining transcoding；Video flowing by the video stream after the transcoding to the terminal, after the transcoding as described in the terminal plays.The present invention is by carrying out transcoding to video flowing, and by the video stream after transcoding to terminal plays, the direct render video stream of terminal, without carrying out transcoding operation, the case where so as to avoid transcoding not in time, decoding queue data stacking is avoided, can achieve the purpose that quickly to play video, improve the usage experience of user.
Description
Technical field
The present invention relates to view networking technology fields, more particularly to a kind of video stream transcoding method and a kind of video stream transcoding
Device.
Background technique
With the fast development of the network technology, the two-way communications such as video conference, video teaching the life of user, work,
Study etc. is widely available.
Currently, more and more users, using view network savvy, such as video conference, video calling, are checked by mobile phone
Monitoring etc..For functions such as checking monitorings, since various monitoring cameras have different resolution ratio and code rate, due to mobile phone
Reasons, the decoding capability to mobile phone such as energy and network are very big tests, and in the case where mobile phone decodes not in time, Jiu Huizao
At decoding queue data stacking, phenomena such as leading to video delay, Caton, user experience is influenced.
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 video stream transcoding method to solve the above problems and a kind of corresponding video stream transcoding device.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of video stream transcoding method, this method can be applied
In view networking, which comprises receive the video stream transcoding message that terminal is sent；The video stream transcoding message include to
Transcoded video stream and format information to be transcoded；Transcoding behaviour is executed to the video flowing to be transcoded based on the format information to be transcoded
Make, the video flowing after obtaining transcoding；By the video stream after the transcoding to the terminal, turn as described in the terminal plays
Video flowing after code.
Preferably, described the step of receiving the video stream transcoding message that terminal is sent, comprising: received by streaming media server
The video stream transcoding message sent by the terminal by preset communication process.
Preferably, described that transcoding operation is executed to the video flowing to be transcoded based on the format information to be transcoded, it obtains
The step of video flowing after transcoding, comprising: the video stream transcoding message is sent to transcoding clothes by the streaming media server
Business device；Transcoding operation is executed to the video flowing to be transcoded according to the format information to be transcoded by the transcoding server, is obtained
Video flowing to after the transcoding.
Preferably, the video stream by after the transcoding is to the terminal, the transcoding as described in the terminal plays
The step of rear video flowing, comprising: compression processing is carried out to the video flowing after the transcoding by the streaming media server, is obtained
Compressed video flowing；By the streaming media server by the compressed video stream to the terminal；By the end
End unzips it processing to the compressed video flowing, and plays the video flowing after decompression.
Preferably, the format information to be transcoded includes high definition resolution ratio, Standard Definition resolution, smooth resolution ratio and original point
Any one of resolution.
To solve the above-mentioned problems, the embodiment of the invention also discloses a kind of video stream transcoding device, which can be answered
For regarding in networking, described device includes: transcoding message reception module, for receiving the video stream transcoding message of terminal transmission；
The video stream transcoding message includes video flowing to be transcoded and format information to be transcoded；Video stream transcoding module, for being based on institute
It states format information to be transcoded and transcoding operation is executed to the video flowing to be transcoded, the video flowing after obtaining transcoding；Transcoded video stream
Sending module, for the view by the video stream after the transcoding to the terminal, after the transcoding as described in the terminal plays
Frequency flows.
Preferably, the transcoding message reception module includes: transcoding message sink submodule, for by streaming media server
Receive the video stream transcoding message sent by the terminal by preset communication process.
Preferably, the video stream transcoding module includes: transcoding message sending submodule, for by the streaming media service
The video stream transcoding message is sent to transcoding server by device；Video stream transcoding submodule, for by the transcoding server
Transcoding operation is executed to the video flowing to be transcoded according to the format information to be transcoded, the video flowing after obtaining the transcoding.
Preferably, the transcoded video stream sending module includes: video stream compression submodule, for being taken by the Streaming Media
Device be engaged in the video flowing progress compression processing after the transcoding, obtains compressed video flowing；Compressed video data sending submodule,
For by the streaming media server by the compressed video stream to the terminal；Video flowing decompression module,
For unziping it processing to the compressed video flowing by the terminal, and play the video flowing after decompression.
Preferably, the format information to be transcoded includes high definition resolution ratio, Standard Definition resolution, smooth resolution ratio and original point
Any one of resolution.
The embodiment of the present invention includes following advantages:
In the embodiment of the present invention, by receive terminal send video stream transcoding message, video stream transcoding message include to
Transcoded video stream and format information to be transcoded treat transcoded video stream based on format information to be transcoded and execute transcoding operation, obtain
Video flowing after transcoding, the video by the video stream after transcoding to the terminal, after the transcoding as described in the terminal plays
Stream.The embodiment of the present invention is by carrying out transcoding to video flowing, and by the video stream after transcoding to terminal plays, terminal is direct
Render video stream the case where so as to avoid transcoding not in time, avoids decoding queue data without carrying out transcoding operation
Accumulation, can achieve the purpose that quickly to play video, improve the usage experience of user.
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 a kind of step flow chart of video stream transcoding method of the invention；
Fig. 6 is a kind of structural block diagram of video stream transcoding device 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: 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.
Referring to Fig. 5, a kind of step flow chart of video stream transcoding method of the invention is shown, this method can be applied to
Depending on can specifically include following steps in networking:
Step 501: receiving the video stream transcoding message that terminal is sent；The video stream transcoding message includes video to be transcoded
Stream and format information to be transcoded.
In embodiments of the present invention, terminal can be mobile terminal, such as mobile phone, PAD (Portable Android
Device, tablet computer) etc. mobile electronic devices.Terminal may be the end PC (Personal Computer), such as desktop
The terminal devices such as brain, laptop.
Format information to be transcoded may include high definition resolution ratio, Standard Definition resolution, smooth resolution ratio and original resolution etc.
One of format is a variety of, certainly, it is not limited to this, for super sorting resolution, the indigo plant of multiple application programs propositions at present
The formats such as light high definition resolution ratio also can be applied in the embodiment of the present invention, and the embodiments of the present invention are not limited thereto.
Video network may include streaming media server, when terminal needs to play video, can send and play to video network
The information of video includes video stream transcoding message in the information for playing video, include in video stream transcoding message to
Transcoded video stream and format information to be transcoded, for example, video flowing to be transcoded is a monitoring video flow, certain collection TV play etc., generation
Code turns the sharpness information that format information can be video playing, such as high definition, SD, smoothness, original.
The communication process with streaming media server can be preset in terminal side, and then terminal can be by presetting
Communication process and streaming media server carry out data interaction, and the video stream transcoding put of terminal is received for streaming media server
The process of message can be described in detail according to embodiments discussed below.
In a preferred embodiment of an embodiment of the present invention, above-mentioned steps 501 may include:
Sub-step A: the video flowing sent by the terminal by preset communication process is received by streaming media server
Transcoding message.
In embodiments of the present invention, streaming media server is the bridge and knob of view networking and IP network audio video transmission business
Band realizes view networking service and merges with the seamless of IP network business, audio and video resources secure accessings all kinds of in IP network can be regarded
Networking, can be by the different audio/video flow conversion of video conference, monitoring image, DTV etc. in view networking and with working standard
The output of IP network protocol mode is depending on the core equipment to interconnect with IP network cell phone client of networking.
Preset communication process refers to that the terminal for being pre-set at terminal side and streaming media server carry out the logical of data interaction
Letter process, preset communication process can be socket process, for example, iOS cell phone apparatus logs in mobile phone flow medium service server
Afterwards, user select high definition, smoothness, SD and original arbitrary resolution video flowing after, iOS cell phone apparatus by socket into
Journey sends switching clarity message to mobile phone streaming media server.
It is to be appreciated that above-mentioned example is merely to more fully understand the technical solution of the embodiment of the present invention and showing for enumerating
Example, not as the sole limitation to the embodiment of the present invention.
After the video stream transcoding message for receiving terminal transmission, step 502 is executed.
Step 502: transcoding operation being executed to the video flowing to be transcoded based on the format information to be transcoded, obtains transcoding
Video flowing afterwards.
It, can be according to be transcoded in video stream transcoding message after the video stream transcoding message for receiving terminal transmission
Format information treats transcoded video stream and executes transcoding operation, to obtain the video flowing after transcoding.
It specifically, may include transcoding server depending on networking, transcoding server can be by the video codes of compressed encoding
Circulation changes another video code flow into, is needed with adapting to different network bandwidths, different terminal processing capacities and different users
It asks.
The process of above-mentioned transcoding operation can be described in detail according to embodiments discussed below.
In a preferred embodiment of an embodiment of the present invention, above-mentioned steps 502 may include:
Sub-step B1: the video stream transcoding message is sent to transcoding server by the streaming media server.
In embodiments of the present invention, streaming media server, can after the video stream transcoding message for receiving terminal transmission
To obtain the video flowing to be transcoded and format information to be transcoded in video stream transcoding message, and by video flowing to be transcoded and to be transcoded
Format information is sent to transcoding server.
After video stream transcoding message is sent to transcoding server by streaming media server, sub-step B2 is executed.
Sub-step B2: the video flowing to be transcoded is executed according to the format information to be transcoded by the transcoding server
Transcoding operation, the video flowing after obtaining the transcoding.
Transcoding server after receiving the format information to be transcoded and video flowing to be transcoded in video stream transcoding message,
Transcoded video stream can be treated according to format information to be transcoded executes transcoding operation, so as to obtain the video flowing after transcoding,
For example, video flowing to be transcoded is monitoring video flow, it, can be from view networked server when format information to be transcoded is high definition resolution ratio
Corresponding monitoring video flow is obtained, is the monitoring video flow of high definition resolution model by monitoring video flow transcoding in turn.
Certainly, format information to be transcoded may include multiple format, for example, video flowing to be transcoded is monitoring video flow, and
When format information to be transcoded includes high definition resolution ratio, Standard Definition resolution and smooth resolution ratio, it can be obtained from view networked server
Monitoring video flow difference transcoding is in turn high definition resolution model, Standard Definition resolution mode and stream by corresponding monitoring video flow
The monitoring video flow of smooth resolution model.
Execute transcoding operation treating transcoded video stream based on format information to be transcoded, video flowing after obtaining transcoding it
Afterwards, step 503 is executed.
Step 503: by the video stream after the transcoding to the terminal, after the transcoding as described in the terminal plays
Video flowing.
After obtaining the video flowing after transcoding, the video stream after transcoding to terminal can be turned by terminal plays
Video flowing after code.
Embodiments discussed below is referred to for the above process to be described in detail.
In a preferred embodiment of an embodiment of the present invention, above-mentioned steps 503 may include:
Sub-step C1: compression processing is carried out to the video flowing after the transcoding by the streaming media server, is compressed
Video flowing afterwards.
In embodiments of the present invention, video flowing to be transcoded is being executed into transcoding operation by transcoding server, after obtaining transcoding
Video flowing after, the video after transcoding can be sent to streaming media server by transcoding server.
Streaming media server can carry out compression processing to the video flowing after received transcoding, after obtaining compression
Video flowing, and execute sub-step C2.
Sub-step C2: by the streaming media server by the compressed video stream to the terminal.
Compression processing is carried out to the video flowing after transcoding in Streaming Media, after obtaining compressed video flowing, can will be pressed
Video stream after contracting executes sub-step C3 to terminal.
Sub-step C3: unziping it processing to the compressed video flowing by the terminal, and after playing decompression
Video flowing.
Terminal can unzip it processing to compressed video flowing after receiving compressed video flowing, from
And the video flowing after available decompression, terminal can render the video flowing after decompression, to play corresponding view
Frequently.
Video stream transcoding method provided in an embodiment of the present invention, the video stream transcoding message sent by receiving terminal, depending on
Frequency circulation code message includes video flowing to be transcoded and format information to be transcoded, treats transcoded video stream based on format information to be transcoded
Execute transcoding operation, the video flowing after obtaining transcoding, by the video stream after transcoding to the terminal, by the terminal plays
Video flowing after the transcoding.The embodiment of the present invention is by carrying out transcoding to video flowing, and extremely by the video stream after transcoding
Terminal plays, the direct render video stream of terminal, without carrying out transcoding operation, the case where so as to avoid transcoding not in time,
Decoding queue data stacking is avoided, can achieve the purpose that quickly to play video, improve the usage experience of user.
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 schematic diagram of video stream transcoding device provided in an embodiment of the present invention is shown, is applied to
Depending on can specifically include in networking:
Transcoding message reception module 610, for receiving the video stream transcoding message of terminal transmission；The video stream transcoding disappears
Breath includes video flowing to be transcoded and format information to be transcoded；Video stream transcoding module 620, for based on the format letter to be transcoded
Breath executes transcoding operation to the video flowing to be transcoded, the video flowing after obtaining transcoding；Transcoded video stream sending module 630 is used
In the video flowing by the video stream after the transcoding to the terminal, after the transcoding as described in the terminal plays.
Preferably, the transcoding message reception module 610 includes: transcoding message sink submodule, for being taken by Streaming Media
Business device receives the video stream transcoding message sent by the terminal by preset communication process.
Preferably, the video stream transcoding module 620 includes: transcoding message sending submodule, for by the Streaming Media
The video stream transcoding message is sent to transcoding server by server；Video stream transcoding submodule, for being taken by the transcoding
Business device executes transcoding operation to the video flowing to be transcoded according to the format information to be transcoded, the video after obtaining the transcoding
Stream.
Preferably, the transcoded video stream sending module 630 includes: video stream compression submodule, for by the stream matchmaker
Body server carries out compression processing to the video flowing after the transcoding, obtains compressed video flowing；Compressed video data sends son
Module, for by the streaming media server by the compressed video stream to the terminal；Video flowing decompression
Module for unziping it processing to the compressed video flowing by the terminal, and plays the video flowing after decompression.
Preferably, the format information to be transcoded includes high definition resolution ratio, Standard Definition resolution, smooth resolution ratio and original point
Any one of resolution.
Video stream transcoding device provided in an embodiment of the present invention, the video stream transcoding message sent by receiving terminal, depending on
Frequency circulation code message includes video flowing to be transcoded and format information to be transcoded, treats transcoded video stream based on format information to be transcoded
Execute transcoding operation, the video flowing after obtaining transcoding, by the video stream after transcoding to the terminal, by the terminal plays
Video flowing after the transcoding.The embodiment of the present invention is by carrying out transcoding to video flowing, and extremely by the video stream after transcoding
Terminal plays, the direct render video stream of terminal, without carrying out transcoding operation, the case where so as to avoid transcoding not in time,
Decoding queue data stacking is avoided, can achieve the purpose that quickly to play video, improve the usage experience of user.
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 stream transcoding method provided by the present invention and a kind of video stream transcoding device, carry out in detail
It introduces, used herein a specific example illustrates the principle and implementation of the invention, the explanation of above embodiments
It is merely 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
The thought of invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not answered
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of video stream transcoding method, which is characterized in that this method can be applied in view networking, which comprises
Receive the video stream transcoding message that terminal is sent；The video stream transcoding message includes video flowing to be transcoded and lattice to be transcoded
Formula information；
Transcoding operation is executed to the video flowing to be transcoded based on the format information to be transcoded, the video flowing after obtaining transcoding；
Video flowing by the video stream after the transcoding to the terminal, after the transcoding as described in the terminal plays.
2. the method according to claim 1, wherein the step for receiving the video stream transcoding message that terminal is sent
Suddenly, comprising:
The video stream transcoding message sent by the terminal by preset communication process is received by streaming media server.
3. according to the method described in claim 2, it is characterized in that, described be based on the format information to be transcoded to described wait turn
The step of code video flowing executes transcoding operation, video flowing after obtaining transcoding, comprising:
The video stream transcoding message is sent to transcoding server by the streaming media server；
Transcoding operation is executed to the video flowing to be transcoded according to the format information to be transcoded by the transcoding server, is obtained
Video flowing after the transcoding.
4. according to the method described in claim 3, it is characterized in that, the video stream by after the transcoding is to the end
The step of end, video flowing after the transcoding as described in the terminal plays, comprising:
Compression processing is carried out to the video flowing after the transcoding by the streaming media server, obtains compressed video flowing；
By the streaming media server by the compressed video stream to the terminal；
Processing is unziped it to the compressed video flowing by the terminal, and plays the video flowing after decompression.
5. the method according to claim 1, wherein the format information to be transcoded includes high definition resolution ratio, mark
Sorting resolution, smooth any one of resolution ratio and original resolution.
6. a kind of video stream transcoding device, which is characterized in that the device can be applied in view networking, and described device includes:
Transcoding message reception module, for receiving the video stream transcoding message of terminal transmission；The video stream transcoding message includes
Video flowing to be transcoded and format information to be transcoded；
Video stream transcoding module, for executing transcoding operation to the video flowing to be transcoded based on the format information to be transcoded,
Video flowing after obtaining transcoding；
Transcoded video stream sending module, for by the video stream after the transcoding to the terminal, by the terminal plays
Video flowing after the transcoding.
7. device according to claim 6, which is characterized in that the transcoding message reception module includes:
Transcoding message sink submodule, for what is sent by the terminal by preset communication process by streaming media server reception
The video stream transcoding message.
8. device according to claim 7, which is characterized in that the video stream transcoding module includes:
Transcoding message sending submodule, for the video stream transcoding message to be sent to transcoding clothes by the streaming media server
Business device；
Video stream transcoding submodule is used for by the transcoding server according to the format information to be transcoded to the view to be transcoded
Frequency stream executes transcoding operation, the video flowing after obtaining the transcoding.
9. device according to claim 8, which is characterized in that the transcoded video stream sending module includes:
Video stream compression submodule, for carrying out compression processing to the video flowing after the transcoding by the streaming media server,
Obtain compressed video flowing；
Compressed video data sending submodule, for by the streaming media server by the compressed video stream to described
Terminal；
Video flowing decompression module for unziping it processing to the compressed video flowing by the terminal, and is broadcast
Video flowing after putting decompression.
10. device according to claim 6, which is characterized in that the format information to be transcoded includes high definition resolution ratio, mark
Sorting resolution, smooth any one of resolution ratio and original resolution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314616.9A CN110166833A (en) | 2019-04-18 | 2019-04-18 | A kind of video stream transcoding method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314616.9A CN110166833A (en) | 2019-04-18 | 2019-04-18 | A kind of video stream transcoding method and device |
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| Publication Number | Publication Date |
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| CN110166833A true CN110166833A (en) | 2019-08-23 |
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ID=67638617
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910314616.9A Withdrawn CN110166833A (en) | 2019-04-18 | 2019-04-18 | A kind of video stream transcoding method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572713A (en) * | 2019-09-24 | 2019-12-13 | 广州优视云集科技有限公司 | transcoding method and processing terminal for adaptive video bandwidth ratio |
| CN110740296A (en) * | 2019-09-30 | 2020-01-31 | 视联动力信息技术股份有限公司 | method and device for processing video stream monitored by video network |
| CN112601096A (en) * | 2020-12-02 | 2021-04-02 | 深圳力维智联技术有限公司 | Video decoding method, device, equipment and readable storage medium |
-
2019
- 2019-04-18 CN CN201910314616.9A patent/CN110166833A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110572713A (en) * | 2019-09-24 | 2019-12-13 | 广州优视云集科技有限公司 | transcoding method and processing terminal for adaptive video bandwidth ratio |
| CN110572713B (en) * | 2019-09-24 | 2020-06-30 | 广州优视云集科技有限公司 | Transcoding method and processing terminal for adaptive video bandwidth ratio |
| CN110740296A (en) * | 2019-09-30 | 2020-01-31 | 视联动力信息技术股份有限公司 | method and device for processing video stream monitored by video network |
| CN112601096A (en) * | 2020-12-02 | 2021-04-02 | 深圳力维智联技术有限公司 | Video decoding method, device, equipment and readable storage medium |
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Application publication date: 20190823 |