CN107155115A - Video/audio processing system and method - Google Patents
Video/audio processing system and method Download PDFInfo
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- CN107155115A CN107155115A CN201710438546.9A CN201710438546A CN107155115A CN 107155115 A CN107155115 A CN 107155115A CN 201710438546 A CN201710438546 A CN 201710438546A CN 107155115 A CN107155115 A CN 107155115A
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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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2368—Multiplexing of audio and video streams
-
- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4341—Demultiplexing of audio and video streams
-
- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4342—Demultiplexing isochronously with video sync, e.g. according to bit-parallel or bit-serial interface formats, as SDI
-
- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4344—Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
-
- 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
- H04N21/439—Processing of audio elementary streams
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/835—Generation of protective data, e.g. certificates
- H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
Abstract
The invention discloses a kind of video/audio processing system and method, it is related to radio and television and broadcasts technical field.Wherein, the system includes：Video and audio source signal processing module, for receiving and handling video and audio source signal, respectively obtains video data and voice data；Message processing module, for replicating and handling the video data and voice data, obtains target video data and/or target audio data；Information integration module, for integrating the target video data and target audio data, obtains primary signal；Coding module, for according to preset coding parameter, being encoded to the target video data and target audio data, obtains corresponding video encoding signal；And package module, for being packaged to the primary signal and the video encoding signal, respectively obtain broadcast television transmissions signal and IP signals.The present invention is exported while realizing for same video and audio source signal in different channels.
Description
Technical field
The present invention relates to radio and television broadcast technical field, specifically, be related to a kind of video/audio processing system and
Method.
Background technology
With the development of the network technology, internet has been deep into each corner in the world, so as to promote many industries
Change.For example, in broadcast television industry, on the basis of traditional broadcast way is adhered to, also making full use of internet, realizing TV
The network of program is broadcasted.
During television program transmission, according to different broadcast requirements, broadcast and as control device is also incomplete, but
It is that general principle is similar.So that numeral is broadcasted as an example, as shown in figure 1, being entered by signal processing apparatus 1a to video and audio source signal
Row signal transacting, such as unpacks, decodes processing, respectively obtains corresponding audio signal and vision signal.Wherein, the video and audio
Source signal includes the local program signal or other extraneous signals that this TV station is provided, the satellite-signal such as received using DVB
Deng.Then audio signal and vision signal are encoded respectively by video encoder 2a and audio coder 3a, such as used
Or MPEG-2 is encoded to video/audio signal H.264.Then by multiplexer 4a multiplexings together with other data, then through toning
Device 5a processed is adjusted and is obtained modulated signal, passes through the transmission sides such as satellite (DVB-S), ground cable (DVB-C) or standard (DVB-T)
Programme signal is sent to user terminal and watched by formula.
In order to be able to broadcast identical television content on the internet, in addition it is also necessary to video/audio signal is encoded, IP packs
Deng processing.At present, the television broadcasting of traditional approach and network, which are broadcasted, is usually spaced apart by processing, for example, entering to video and audio source signal
The processing of row relevant information, such as increases station symbol, related picture and text, then obtains broadcast television transmissions letter according still further to relevant criterion processing
Number, then obtain after broadcast television transmissions signal, further according to the network transmission protocol, network data processing, such as IP packings are carried out to it
Deng processing, so as to obtain that the IP signals of network transmission can be carried out.For this mode, broadcast television transmissions signal is being obtained
Afterwards, in addition it is also necessary to which single equipment is handled the signal.Or two-way autonomous device is directly used, video and audio source is believed respectively
Number handled with this to obtain broadcast television transmissions signal and IP signals.For example, using network video server to video and audio
Source signal carries out information processing, increases the processing such as station symbol, related picture and text as elucidated before, is then encoded again, IP packs,
So as to obtain that the IP signals of network transmission can be carried out.For both the above mode, it is required for autonomous device to complete IP signals
Processing, cost is higher, and exported while being difficult and accomplish with IP signals with broadcast television transmissions signal.
The content of the invention
The technical problem to be solved in the present invention is, for deficiency of the prior art there is provided a kind of video/audio at
System and method is managed, broadcast television transmissions signal and IP signals to export same video and audio source simultaneously improve treatment effeciency.
In order to solve the above-mentioned technical problem, according to an aspect of the present invention, the invention provides a kind of video/audio
Processing system, wherein, including：
Video and audio source signal processing module, for receiving and handling video and audio source signal, respectively obtains video data and sound
Frequency evidence；
Message processing module, for replicating the video data and voice data, according to preset processing parameter, is regarded to described
Frequency evidence and/or voice data carry out information processing, obtain target video data and/or target audio data；
Information integration module, is connected with described information processing module, for integrating the target video data and target
Voice data, obtains primary signal；
Coding module, is connected with described information processing module, for according to preset coding parameter, to the target video
Data and target audio data are encoded, and obtain corresponding video encoding signal；With
Package module, integrates module with described information respectively and the coding module is connected, for using preset encapsulation
Parameter is packaged to the primary signal and the video encoding signal respectively, respectively obtain broadcast television transmissions signal and
IP signals.
Preferably, described video/audio processing system also includes：
Program identification generation module, is connected with the video and audio source signal reception processing module, is the video data
Corresponding with video and audio source signal program identification is set with voice data, and by video data and sound with program identification
In frequency data Cun Chudao internal memories；
Described information processing module is when replicating the video data and voice data, according to the program identification, inside
Deposit the middle video data and voice data for replicating same program identification.
Preferably, the package module includes：
Serial digital interface signal assemble unit, for according to serial digital interface format parameter, by the primary signal
It is encapsulated as serial digital interface signal；With
Compressed IP signal assemble unit, for being compressed IP signal by the video encoding signal assemble.
Preferably, the package module also includes：
Asynchronous Serial Interface signal assemble unit, for according to Asynchronous Serial Interface format parameter, the video and audio to be compiled
Code signal assemble is Asynchronous Serial Interface signal；And/or
Baseband I P signal encapsulation unit, for the primary signal to be encapsulated as into baseband I P signal.
Preferably, the preset coding parameter is multigroup, and corresponding coding module obtains corresponding multigroup video encoding
Signal；
The compressed IP signal assemble unit is multigroup, and it is biography to be respectively used to multigroup video encoding signal assemble
Corresponding compressed IP signal.
In order to solve the above-mentioned technical problem, according to another aspect of the present invention, present invention also offers a kind of video and audio
Data processing method, wherein, comprise the following steps：
Receive and handle video and audio source signal, obtain corresponding video data and voice data；
The video data and voice data are replicated, according to preset processing parameter, to the video data and/or audio number
According to information processing is carried out, target video data and/or target audio data are obtained；
The target video data and/or target audio data are integrated, primary signal is obtained；With according to preset
Coding parameter, is encoded to the target video data and target audio data, obtains corresponding video encoding signal；
The primary signal and the video encoding signal are packaged respectively using preset encapsulation parameter, respectively
To broadcast television transmissions signal and IP signals.
Preferably, after corresponding video data and voice data is obtained, in addition to：
It is that the video data and voice data set program identification corresponding with the video and audio source signal, and will has
The video data and voice data of program identification are stored into internal memory；
It is described to be specially the step of replicate the video data and voice data：
According to the program identification, the video data and audio number with same program identification are replicated in internal memory
According to.
Preferably, the primary signal and the video encoding signal are entered respectively using preset encapsulation parameter described
In the step of row encapsulation, specifically include：
According to serial digital interface format parameter, the primary signal is encapsulated as serial digital interface signal；With
It is compressed IP signal by the video encoding signal assemble.
Preferably, the primary signal and the video encoding signal are entered respectively using preset encapsulation parameter described
In the step of row encapsulation, specifically also include：
It is Asynchronous Serial Interface signal by the video encoding signal assemble according to Asynchronous Serial Interface format parameter；
And/or
The primary signal is encapsulated as baseband I P signal.
Preferably, the preset coding parameter is multigroup, and the target video data and target audio data are compiled
During code, corresponding multigroup video encoding signal is obtained；
It is respectively correspondence by multigroup video encoding signal assemble when being packaged to the video encoding signal
Compressed IP signal.
The present invention by same video source signal carry out a decoding operate can meet broadcast television transmissions signal and
Exported while IP signals, the dual requirementses that tradition broadcasts link and IP broadcast links have both been met, while can also be respective
Broadcast provide multi-signal selection, realize the multi-signal transformat for same video source signal in different channels
While export, thus improve system treatment effeciency, reduce synchronizing relay.
Brief description of the drawings
Description by referring to the following drawings to the embodiment of the present invention, above-mentioned and other purpose of the invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 is the digital principles of signal processing block diagram broadcasted in the prior art；
Fig. 2 is the theory diagram for the video/audio processing system that the embodiment of the present invention one is provided；
Fig. 3 is the theory diagram of video and audio source signal processing module embodiment in the embodiment of the present invention one；
Fig. 4 is the theory diagram of coding module embodiment in the embodiment of the present invention one；
Fig. 5 is the theory diagram of package module embodiment described in the embodiment of the present invention one；
Fig. 6 is the theory diagram for the video/audio processing system that the embodiment of the present invention two is provided；
Fig. 7 is the principle frame of package module embodiment in the video/audio processing system that the embodiment of the present invention three is provided
Figure；
Fig. 8 is the flow chart for the video/audio processing method that the embodiment of the present invention four is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, it is every other that those of ordinary skill in the art are obtained on the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Flow chart, block diagram in accompanying drawing illustrate the possible system frame of the system, method, device of the embodiment of the present invention
Square frame on frame, function and operation, flow chart and block diagram can represent a module, program segment or only one section of code, institute
It is all the executable instruction for realizing regulation logic function to state module, program segment and code.It should also be noted that described realize rule
Determining the executable instruction of logic function can reconfigure, so as to generate new module and program segment.Therefore accompanying drawing square frame with
And square frame order is used only to the process and step of preferably diagram embodiment, without should be in this, as the limit to invention itself
System.
Embodiment one
As shown in Fig. 2 the theory diagram of the video/audio processing system provided for the embodiment of the present invention one, wherein, bag
Include：Video and audio source signal processing module 1, message processing module 2, information integration module 3, coding module 4 and package module 5.
The video and audio source signal processing module 1 receives and handles video and audio source signal, respectively obtains video data and sound
Frequency evidence.Specifically, as shown in figure 3, being the theory diagram of described one embodiment of video and audio source signal processing module 1.It is described
Video and audio source signal reception processing module 1 includes signaling interface 11, unpack unit 12 and decoding unit 13.Wherein, the signal
Interface 11 is used to receive video and audio source signal.Described video and audio source signal includes the internal signal from TV station, such as makes by oneself
The video file signal of program, also including coming from outside signal, such as the signal of other TV stations transmission or defending for reception
Star signal.Thus the signaling interface 11 includes various specific signaling interfaces, and so as to input various signals, such as ASI connects
Mouth (Asynochronic Serial Interface, Asynchronous Serial Interface), IP interfaces and/or SDI interfaces (Serial
Digital Interface, serial digital interface) etc..
Signaling interface 11 will receive video and audio source signal stream and be sent to unit 12 of unpacking, by the unit 12 of unpacking
Unpack processing, respectively obtain video data bag and packets of audio data, then respectively send out the video data bag and packets of audio data
Give decoding unit 13.The decoding unit 13 includes Video Decoder and audio decoder, respectively to video data bag and sound
Frequency packet is decoded, so as to obtain video/audio and voice data.
On the ins and outs of unpack unit and decoding unit in video and audio source signal processing module 1, art technology
Personnel can combine the common technical knowledge of its grasp, such as MPEG-2, DTV technology, or reference pertinent literature to know, because
And will not be repeated here.
After the video data and voice data of same video and audio source signal is obtained, message processing module 2 replicates described same
The video data and voice data of one video and audio source signal, and according to preset processing parameter to video data and/or voice data
After processing, target video data and target audio data are respectively obtained.Target video data and the target audio data is eventually
The picture that end spectators should be seen that and the sound heard.
Described processing includes processing and obtains predetermined aspect ratio (such as 4:3.16:9), resolution ratio (such as 720p,
1080p, 4K etc.), picture and text superposition, up conversion, down conversion etc..For example, being superimposed station symbol, captions, migration etc. in video pictures.Its
In a concrete implementation mode be to be completed by way of superimposed layer.For example it regard original television image as the bottom, platform
It is denoted as being added on the bottom for preceding layer.This completes the superposition of station symbol.Described up conversion is for example：When by processing
The aspect ratio for obtaining primary signal afterwards is 4:When 3,16 are become by the method for raw frames being stretched or being blackened side:9
Aspect ratio.The down conversion is for example：When the aspect ratio for obtaining people's primary signal after treatment is 16:When 9, by former
Beginning picture is extruded or the method for cutting edge becomes 4:3 aspect ratio.
After above-mentioned processing, target video data and target audio data are respectively obtained.
Information integration module 3 is connected with described information processing module, for integrating the target video data and target
Voice data, obtains primary signal.
Coding module 4 is connected with described information processing module, for according to preset coding parameter, to the target video
Data and target audio data are encoded, and obtain corresponding video encoding signal.Wherein, preset coding parameter can be one
Group is multigroup, when for one group when, obtain one group of video encoding signal, when for multigroup coding parameter, multigroup regard can be obtained
Audio coding signal.One specific embodiment is as shown in Figure 4.
It is the theory diagram of the embodiment of coding module 4 referring to Fig. 4.The coding module 4 include parameter provide unit 41,
Video encoding unit 421, audio coding unit 422 and synthesis unit 43.Wherein, the parameter provides unit 41 and provides multigroup ginseng
Array 41a......41n.Corresponding, 43 pairs of video encoding unit 421, audio coding unit 422 and synthesis unit should have n groups.
Wherein, each group of parameter group includes different parameters, such as video code rate, Video coding grade, video code model；Audio code
Rate, audio coding formats etc..Therefore, according to each group of parameter, eventually pass through Video coding, audio coding, regard, audio synthesis,
Obtain one group of video encoding signal.As shown in figure 4, coding module 4 exports multiple video encoding signals.
The package module 5 is as shown in figure 5, at least include：The He of serial digital interface (abbreviation SDI) signal assemble unit 51
Compressed IP signal assemble unit 52.Wherein, the sdi signal encapsulation unit 51 is integrated module 3 with described information and is connected, by institute
The primary signal for stating the output of information integration module 3 is encapsulated as sdi signal, and exports to output control system.The compressed IP letter
Number encapsulation unit 52 is connected with coding module 4, and the video encoding signal assemble for the coding module 4 to be exported is pressure
Contracting IP signals, and export to output control system 6, control both signals to export simultaneously by output control system 6, so that real
Broadcasted while two links for having showed same video and audio source signal.
In the present embodiment, when primary signal is encapsulated as into sdi signal, according to the type of primary signal, it can encapsulate
For SDI standard definition signals (SD-SDI) and/or high-definition signal (HD-SDI)
In information integration module 3, be stored with corresponding transmission standard processing parameter, for example, for SD-SDI signals, place
Reason parameter should meet SMPTE259-C standards, and embedded audio meets SMPTE272M standards, and code check is 270Mbps.For HD-SDI
Signal, processing parameter should meet SMPTE-292M standards, and embedded audio meets SMPTE299M standards, and code check is 1485Mbps.Letter
Breath integrates module 3 according to corresponding canonical parameter and control information (such as selecting any parameter), by target video data and mesh
Mark voice data is integrated into the SD-SDI primary signals for meeting SD-SDI transmission standards, or meets the HD- of HD-SDI transmission standards
SDI primary signals, and output it to package module 5 and be packaged into corresponding SD-SDI signals or HD-SDI signals.
Wherein, for being the SD-SDI for meeting SD-SDI transmission standards by target video data and target audio Data Integration
Primary signal, or meet the process and its respective encapsulation process of the HD-SDI primary signals of HD-SDI transmission standards, this area
Those of ordinary skill be referred to corresponding technical standard and realize, it is not reinflated herein to describe in detail.
For same video and audio source signal, the present embodiment is simultaneously there is provided sdi signal and IP signals, also, sdi signal can
To be single SD-SDI or HD-SDI signals, both signals can also be provided simultaneously.IP signals are encoded compression
Signal, and there is provided multiple compressed IP signals, for example, multiple IP signals of different code checks are provided, to adapt to different networks
Transmission requirement.
Embodiment two
As shown in fig. 6, the theory diagram of the video/audio processing system provided for the embodiment of the present invention two.In this implementation
In example, except with addition to the identical module of embodiment one, in addition to program identification generation module 7.The program identification generation module 7
It is connected with the video and audio source signal reception processing module 1, to be handled by the video and audio source signal reception processing module 1
After obtain video data and voice data program identification corresponding with the video and audio source signal be set, for handling many at the same time
During individual video and audio source signal, the video data and voice data in different video and audio sources are distinguished.After program identification is set up, will have
The video data and voice data for having program identification are stored into internal memory.Message processing module 2 replicates same program into internal memory
The video data and voice data of mark, the processing of video or audio are carried out according to preset information processing parameter, so as to obtain
Desired video or voice data.
Embodiment three
In the present embodiment, the overall structure of embodiment one and embodiment two can be used, with above two embodiments not
With the package module in the present embodiment can provide more signals.Specifically as shown in fig. 7, being the embodiment of the present invention three
In package module theory diagram.In the present embodiment, the package module 5 is except including the SDI letters in embodiment one
Outside number encapsulation unit 51 and compressed IP signal assemble unit 52, in addition to Asynchronous Serial Interface (ASI) signal assemble unit 53
With baseband I P signal encapsulation unit 54.
Wherein, ASI signal assembles unit 53 seals the video encoding signal according to Asynchronous Serial Interface format parameter
Fill as Asynchronous Serial Interface signal.The primary signal is encapsulated as baseband I P signal by the baseband I P signal encapsulation unit 54
IPbaseband。
In the present embodiment, compressed IP signal can be as multiple in embodiment one, and sdi signal can be as in embodiment one
SD-SDI or HD-SDI signals, and also add two kinds of signals, i.e. ASI signals and without compression baseband I P signal.Cause
And, the present embodiment can export different transpost formats, adaptation different channels signals simultaneously.
Example IV
As shown in figure 8, a kind of flow chart of the video/audio processing method provided for the embodiment of the present invention four, with reference to figure
System principle diagram shown in 2, wherein, it the described method comprises the following steps：
Step S1, receives video and audio source signal, includes the video/audio signal of the inside video and audio file offer of TV station, or
Person is the video/audio signal being received externally, such as SDI, AVI, IP signal.
Step S2, handles video and audio source signal, such as folding bag, decoding processing, obtains video data and voice data.
Step S3, replicates the video data and voice data in the video and audio source, according to preset processing parameter, is regarded to described
Frequency evidence and/or voice data carry out information processing and obtain desired information.For example change voice data, increase in video information
Plus picture or word etc..
Step S4, according to preset parameter, such as SMPTE259-C standards and SMPTE272M canonical parameters, SMPTE-292M marks
Accurate and SMPTE299M canonical parameters and specific code check (270Mbps, 1485Mbps) etc., integrate the video data and audio
Data, voice data is embedded into video data, obtains corresponding primary signal, and be packaged into sdi signal in step S5.
In process step S4, while carrying out step S6, according to preset coding parameter, the video data and audio are handled
Data, such as Video coding, audio coding, are then synthesized, and obtain corresponding video encoding signal, compression is packaged into step S7
IP signals.
Step S8, controls the sdi signal and IP signals in same video and audio source to export simultaneously.
For same video and audio source, the present invention just can obtain broadcast television transmissions letter simultaneously by a decoding process
Number (such as sdi signal) and IP signals, it is not necessary to obtain IP signals and again extra increase equipment, reduce cost.And can be with
The transmission signal of a variety of different-formats is provided as needed to adapt to different transmission channels, improves signal transacting efficiency.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, about the common of technical field
Technical staff, without departing from the spirit and scope of the present invention, can also make a variety of changes and modification, therefore all
Equivalent technical scheme falls within scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (10)
1. a kind of video/audio processing system, wherein, including：
Video and audio source signal processing module, for receiving and handling video and audio source signal, respectively obtains video data and audio number
According to；
Message processing module, for replicating the video data and voice data, according to preset processing parameter, to the video counts
According to and/or voice data carry out information processing, obtain target video data and/or target audio data；
Information integration module, is connected with described information processing module, for integrating the target video data and target audio
Data, obtain primary signal；
Coding module, is connected with described information processing module, for according to preset coding parameter, to the target video data
Encoded with target audio data, obtain corresponding video encoding signal；With
Package module, integrates module with described information respectively and the coding module is connected, for using preset encapsulation parameter
The primary signal and the video encoding signal are packaged respectively, broadcast television transmissions signal and IP letters is respectively obtained
Number.
2. video/audio processing system as claimed in claim 1, wherein, in addition to：
Program identification generation module, is connected with the video and audio source signal reception processing module, is the video data and sound
Frequency is according to setting corresponding with video and audio source signal program identification, and by the video data with program identification and audio number
According to storage into internal memory；
Described information processing module is when replicating the video data and voice data, according to the program identification, in internal memory
Replicate the video data and voice data of same program identification.
3. video/audio processing system as claimed in claim 1 or 2, wherein, the package module includes：
Serial digital interface signal assemble unit, for according to serial digital interface format parameter, the primary signal to be encapsulated
For serial digital interface signal；With
Compressed IP signal assemble unit, for being compressed IP signal by the video encoding signal assemble.
4. video/audio processing system as claimed in claim 3, wherein, the package module also includes：
Asynchronous Serial Interface signal assemble unit, for according to Asynchronous Serial Interface format parameter, the video encoding to be believed
Number it is encapsulated as Asynchronous Serial Interface signal；And/or
Baseband I P signal encapsulation unit, for the primary signal to be encapsulated as into baseband I P signal.
5. video/audio processing system as claimed in claim 3, wherein, the preset coding parameter be it is multigroup, it is corresponding
Coding module obtains corresponding multigroup video encoding signal；
The compressed IP signal assemble unit is multigroup, and it is corresponding to be respectively used to multigroup video encoding signal assemble
Compressed IP signal.
6. a kind of video/audio processing method, wherein, comprise the following steps：
Receive and handle video and audio source signal, obtain corresponding video data and voice data；
The video data and voice data are replicated, according to preset processing parameter, the video data and/or voice data are entered
Row information processing, obtains target video data and/or target audio data；
The target video data and/or target audio data are integrated, primary signal is obtained；With according to preset coding
Parameter, is encoded to the target video data and target audio data, obtains corresponding video encoding signal；
The primary signal and the video encoding signal are packaged respectively using preset encapsulation parameter, respectively obtained wide
Broadcast television transmission signal and IP signals.
7. video/audio processing method as claimed in claim 6, wherein, obtaining corresponding video data and voice data
Afterwards, in addition to：
It is that the video data and voice data set program identification corresponding with the video and audio source signal, and there will be program
The video data and voice data of mark are stored into internal memory；
It is described to be specially the step of replicate the video data and voice data：
According to the program identification, the video data and voice data with same program identification are replicated in internal memory.
8. video/audio processing method as claimed in claims 6 or 7, wherein, described using preset encapsulation parameter difference
In the step of being packaged to the primary signal and the video encoding signal, specifically include：
According to serial digital interface format parameter, the primary signal is encapsulated as serial digital interface signal；With
It is compressed IP signal by the video encoding signal assemble.
9. video/audio processing method as claimed in claim 8, wherein, preset encapsulation parameter is used respectively to institute described
State primary signal and the step of the video encoding signal is packaged in, specifically also include：
It is Asynchronous Serial Interface signal by the video encoding signal assemble according to Asynchronous Serial Interface format parameter；And/or
The primary signal is encapsulated as baseband I P signal.
10. video/audio processing method as claimed in claim 8, wherein, the preset coding parameter is multigroup, to described
When target video data and target audio data are encoded, corresponding multigroup video encoding signal is obtained；
It is respectively corresponding pressure by multigroup video encoding signal assemble when being packaged to the video encoding signal
Contracting IP signals.
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