CN107360464A - A kind of transcoding device and method - Google Patents
A kind of transcoding device and method Download PDFInfo
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- CN107360464A CN107360464A CN201710789891.7A CN201710789891A CN107360464A CN 107360464 A CN107360464 A CN 107360464A CN 201710789891 A CN201710789891 A CN 201710789891A CN 107360464 A CN107360464 A CN 107360464A
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- transcoding
- program data
- signal
- processor
- digital video
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 230000010365 information processing Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
Classifications
-
- 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 or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440236—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by media transcoding, e.g. video is transformed into a slideshow of still pictures, audio is converted into text
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/454—Content or additional data filtering, e.g. blocking advertisements
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention discloses a kind of transcoding device and method, device includes：Signal receiver, at least two transcoding processor, each transcoding processor at least two transcoding processor is connected with signal receiver respectively, signal receiver, for receiving digital video broadcast signal, and program data filtering is carried out to digital video broadcast signal, and the program data that will filter out is sent to each transcoding processor；Transcoding processor, for carrying out transcoding processing to the program data received, obtain network signal.Transcoding device provided by the present invention reduces the cost of transcoding device, and also reduces the use cost of user.
Description
Technical field
The application is related to technical field of information processing, more particularly to a kind of transcoding device and method.
Background technology
With the growing demand that people are entertained video display, the size and form of audio and video resources also occur huge
Big growth, in order to improve audio-visual quality, reduce occupancy such as network bandwidth or satellite bandwidth etc., audio frequency and video transcoding technology
Using and give birth to.
At present, the module inside most of transcoders on the market, is all single channel or multichannel input, and transcoding module is all single
Road is handled, and single channel output, if to realize the input of 4 tunnels and the output of 8 tunnels, generally requiring multiple single equipment parallel connections inside it makes
With.
Conventional transcoding device, often due to the internal limitation using single transcoding module, is caused if it is desired to reaching more
Road transcoding output, then just need multi-channel parallel, so as to increase cost, cause service provider and professional content provider
Purchase cost is huge, and improves customer using cost indirectly.
The content of the invention
The invention provides a kind of code-transferring method and device., to solve in the prior art because inside uses single turn
The limitation of code module, cause if it is desired to reaching the output of multichannel transcoding, then multi-channel parallel is just needed, so as to increase cost,
Cause service provider and professional content provider purchase cost huge, and improve asking for customer using cost indirectly
Topic.
Its specific technical scheme is as follows：
A kind of transcoding device, described device include：Signal receiver, at least two transcoding processor, described at least two turn
Each transcoding processor in code processor is connected with the signal receiver respectively, wherein,
The signal receiver, carried out for receiving digital video broadcast signal, and to the digital video broadcast signal
Program data is filtered, and the program data that will filter out is sent to each transcoding processor；
The transcoding processor, for carrying out transcoding processing to the program data received, obtain network signal.
Optionally, the signal receiver includes：
Message processing module, the program data to be transcoded selected for obtaining user, and determine the number of programs
According to characteristic information；
Information reception chip, the characteristic information determined for receiving described information processing module, and according to described
Characteristic information, obtain the first TS corresponding to frequency and flow；Filtrating program data, and obtain the 2nd TS corresponding to program data and flow, will
2nd TS is streamed to the transcoding processor.
Optionally, the transcoding processor, it is specific to obtain transcoded data parameter, transcoding is carried out according to the transcoding parameter,
And export network signal.
Optionally, the transcoding processor, specifically for obtaining transcoding code check, transcoding frame per second, transcoding agreement, according to described
Transcoding code check, transcoding frame per second, transcoding agreement carry out transcoding, and export the network signal that transcoding obtains.
A kind of code-transferring method, methods described include：
Digital video broadcast signal is received, and program data filtering is carried out to the digital video broadcast signal；
The program data that will filter out carries out transcoding processing by each transcoding processor, obtains network signal.
Optionally, digital video broadcast signal is received, and program data filtering is carried out to the digital video broadcast signal,
Including：
The program data to be transcoded that user chooses is obtained, and determines the characteristic information of program data, wherein, institute
State characteristic information and comprise at least frequency corresponding to program data；
Frequency in the characteristic information determines programme signal, and obtains the first TS corresponding to programme signal and flow；
Filtrating program data, and obtain the 2nd TS corresponding to the program data and flow, and the 2nd TS is streamed to
The transcoding processor.
Optionally, transcoding processing is carried out to the program data received, obtains network signal, including：
Obtain transcoding code check, transcoding frame per second and transcoding agreement corresponding to program data；
According to the transcoding code check, the transcoding frame per second and the transcoding agreement, the program data transcoding is exported
Network signal.
The transcoding device provided by the embodiment of the present invention can internally realize that multichannel transcoding CPU carries out independence respectively
Transcoding, and final output multi-channel network signal, this addresses the problem in the prior art because inside uses single transcoding mould
The limitation of block, cause if it is desired to reaching the output of multichannel transcoding, then just need multi-channel parallel, so as to increase cost, cause
Service provider and professional content provider purchase cost are huge, and the problem of improve customer using cost indirectly.From
And the cost of transcoding device is reduced, and also reduce the use cost of user.
Brief description of the drawings
Fig. 1 is one of a kind of structural representation of transcoding device in the embodiment of the present invention；
Fig. 2 is two of a kind of structural representation of transcoding device in the embodiment of the present invention；
Fig. 3 is three of a kind of structural representation of transcoding device in the embodiment of the present invention；
Fig. 4 is four of a kind of structural representation of transcoding device in the embodiment of the present invention；
Fig. 5 is a kind of flow chart of code-transferring method in the embodiment of the present invention.
Embodiment
Technical solution of the present invention is described in detail below by accompanying drawing and specific embodiment, it will be appreciated that this hair
Particular technique feature in bright embodiment and embodiment is the explanation to technical solution of the present invention, rather than is limited, not
In the case of conflict, the particular technique feature in the embodiment of the present invention and embodiment can be mutually combined.
It is a kind of structural representation of transcoding device in the embodiment of the present invention as shown in Figure 1, the device includes：Signal receives
Device 101, at least two transcoding processor 102, each transcoding processor 102 at least two transcoding processor connect with signal respectively
Receive device 101 to connect, signal receiver 101 is used to receive digital video broadcast signal (English：Digital Video
Broadcasting, referred to as：DVB program data filtering), and to DVB signals is carried out, and filtrating program data are sent to each
Transcoding processor 102.
Explanation is needed exist for, the structure for the transcoding device that the embodiment of the present invention is provided is except the structure shown in Fig. 1
Outside, it can input as 4 road DVB signals with the structure shown in Fig. 2, in fig. 2, by signal receiver 101, pass to 4
Independent transcoding CPU, final output are 4 road network signals.
The structure shown in Fig. 3 is can also be, in figure 3, is inputted as 4 road DVB signals, by signal receiver 101, is transmitted
The transcoding CPU independent to 4, final output are 4 road network signals；
The structure shown in Fig. 4 is can also be, in Fig. 4, is inputted as 4 road DVB signals, by signal receiver 101, is transmitted
The transcoding CPU independent to 8, final output are 8 road network signals.
Fig. 1-Fig. 4 show the structure simply citing signal of transcoding device, is not the knot for limiting transcoding device of the present invention
Structure.
Further, in embodiments of the present invention, the signal receiver 101 includes：
Information processor module, the program data to be transcoded selected for obtaining user, and determine program data
Characteristic information；
Information reception chip, the characteristic information determined for receive information processing module, and according to characteristic information, obtain
First TS corresponding to frequency flows, filtrating program data, and obtains corresponding to program data the 2nd TS and flow, and by the 2nd TS streaming
To transcoding CPU.
Specifically, when user selects the program for needing transcoding, it is corresponding that message processing module will analyze the program
Characteristic information, such as：The information such as frequency, symbol rate, error correcting code corresponding to the program, and the Spanning-Tree Protocol of audio frequency and video
PID program-related informations pass to signal receiving chip, and signal receiving chip goes locking signal using above-mentioned frequency point information, obtained
Flowed to the first TS corresponding to the frequency, then it is corresponding to obtain the program according to the programme information being filtrated to get for signal receiving chip
The 2nd TS stream, the 2nd TS is spread pass transcoding CPU102 carry out transcoding.
Transcoding CPU102 is after above-mentioned TS streams are received, it is first determined goes out transcoding code check, transcoding frame per second, transcoding association
View, transcoding is carried out, and exports the network signal that transcoding obtains according to transcoding code check, transcoding frame per second, transcoding agreement.Need exist for
Bright to be, transcoding code check is traditionally arranged to be 256K-4M, and transcoding frame per second is traditionally arranged to be 0-60 frames, transcoding agreement be generally HTTP,
UDP, RTSP etc..
The transcoding device provided by the embodiment of the present invention can internally realize that multichannel transcoding CPU carries out independence respectively
Transcoding, and final output multi-channel network signal, this addresses the problem in the prior art because inside uses single transcoding mould
The limitation of block, cause if it is desired to reaching the output of multichannel transcoding, then just need multi-channel parallel, so as to increase cost, cause
Service provider and professional content provider purchase cost are huge, and the problem of improve customer using cost indirectly.From
And the cost of transcoding device is reduced, and also reduce the use cost of user.
In addition, in embodiments of the present invention, to should transcoding device, additionally provide a kind of code-transferring method, be illustrated in figure 5
A kind of flow chart of code-transferring method, this method include in the embodiment of the present invention：
S501, digital video broadcast signal is received, and program data filtering is carried out to the digital video broadcast signal；
S502, the program data that will filter out carry out transcoding processing by each transcoding processor, obtain network signal.
First, this method be may apply in the transcoding device shown in above-mentioned Fig. 1-Fig. 4, and user is obtained by the device
The program data to be transcoded selected, and determine the characteristic information of program data；According to characteristic information, it is corresponding to obtain frequency
The first TS streams, filtrating program data, and obtain corresponding to program data the 2nd TS and flow, and the 2nd TS is streamed to transcoding
CPU。
Specifically, when user selects the program for needing transcoding, characteristic information corresponding to the program, example are analyzed
Such as：The information such as frequency, symbol rate, error correcting code corresponding to the program, and the related letter of Spanning-Tree Protocol PID programs of audio frequency and video
Breath, locking signal is gone using above-mentioned frequency point information, is obtained corresponding to the frequency the first TS and is flowed, then signal receiving chip according to
The programme information being filtrated to get, obtain corresponding to the program the 2nd TS and flow, the 2nd TS is spread and passs transcoding CPU and is turned
Code.
Transcoding CPU is after above-mentioned TS streams are received, it is first determined goes out transcoding code check, transcoding frame per second, transcoding agreement, root
Transcoding is carried out, and exports the network signal that transcoding obtains according to transcoding code check, transcoding frame per second, transcoding agreement.Needing exist for explanation is,
Transcoding code check is traditionally arranged to be 256K-4M, and transcoding frame per second is traditionally arranged to be 0-60 frames, transcoding agreement be generally HTTP, UDP,
RTSP etc..
The code-transferring method provided by the embodiment of the present invention can internally realize that multichannel transcoding CPU carries out independence respectively
Transcoding, and final output multi-channel network signal, this addresses the problem in the prior art because inside uses single transcoding mould
The limitation of block, cause if it is desired to reaching the output of multichannel transcoding, then just need multi-channel parallel, so as to increase cost, cause
Service provider and professional content provider purchase cost are huge, and the problem of improve customer using cost indirectly.From
And the cost of transcoding device is reduced, and also reduce the use cost of user.
Although having been described for the preferred embodiment of the application, one of ordinary skilled in the art once knows substantially
Creative concept, then other change and modification can be made to these embodiments.So appended claims are intended to be construed to wrap
Include preferred embodiment and fall into having altered and changing for the application scope.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the application to the application
God and scope.So, if these modifications and variations of the application belong to the scope of the application claim and its equivalent technologies
Within, then the application is also intended to comprising including these changes and modification.
Claims (7)
1. a kind of transcoding device, it is characterised in that described device includes：Signal receiver, at least two transcoding processor, it is described
Each transcoding processor at least two transcoding processor is connected with the signal receiver respectively, wherein,
The signal receiver, program is carried out for receiving digital video broadcast signal, and to the digital video broadcast signal
Data filtering, and the program data that will filter out is sent to each transcoding processor；
The transcoding processor, for carrying out transcoding processing to the program data received, obtain network signal.
2. device as claimed in claim 1, it is characterised in that the signal receiver includes：
Message processing module, the program data to be transcoded selected for obtaining user, and determine the program data
Characteristic information；
Information reception chip, the characteristic information determined for receiving described information processing module, and according to the feature
Information, obtain the first TS corresponding to frequency and flow；Filtrating program data, and obtain the 2nd TS corresponding to program data and flow, by described in
2nd TS is streamed to the transcoding processor.
3. device as claimed in claim 1, it is characterised in that the transcoding processor, it is specific to obtain transcoded data parameter, root
Transcoding is carried out according to the transcoding parameter, and exports network signal.
4. device as claimed in claim 1, it is characterised in that the transcoding processor, specifically for obtaining transcoding code check, turning
Code frame per second, transcoding agreement, transcoding is carried out, and exports the net that transcoding obtains according to the transcoding code check, transcoding frame per second, transcoding agreement
Network signal.
5. a kind of code-transferring method, it is characterised in that methods described includes：
Digital video broadcast signal is received, and program data filtering is carried out to the digital video broadcast signal；
The program data that will filter out carries out transcoding processing by each transcoding processor, obtains network signal.
6. method as claimed in claim 5, it is characterised in that digital video broadcast signal is received, and to the digital video
Broadcast singal carries out program data filtering, including：
The program data to be transcoded that user chooses is obtained, and determines the characteristic information of program data, wherein, the spy
Reference breath comprises at least frequency corresponding to program data；
Frequency in the characteristic information determines programme signal, and obtains the first TS corresponding to programme signal and flow；
Filtrating program data, and obtain corresponding to the program data the 2nd TS and flow, and the 2nd TS is streamed to described
Transcoding processor.
7. method as claimed in claim 5, it is characterised in that transcoding processing is carried out to the program data received, obtains net
Network signal, including：
Obtain transcoding code check, transcoding frame per second and transcoding agreement corresponding to program data；
According to the transcoding code check, the transcoding frame per second and the transcoding agreement, the program data transcoding is exported into network
Signal.
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| CN201710789891.7A CN107360464A (en) | 2017-09-05 | 2017-09-05 | A kind of transcoding device and method |
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| CN201710789891.7A CN107360464A (en) | 2017-09-05 | 2017-09-05 | A kind of transcoding device and method |
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| WO2013173683A1 (en) * | 2012-05-18 | 2013-11-21 | Motorola Mobility Llc | Synchronizing multiple transcoding devices utilizing simultaneity of receipt of multicast packets |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101193289A (en) * | 2006-11-22 | 2008-06-04 | 中兴通讯股份有限公司 | A real time conversion method from MPEG-4 transmission code stream to Internet stream media alliance stream |
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| US20130044803A1 (en) * | 2011-08-15 | 2013-02-21 | Rgb Networks, Inc. | Instantaneous decoder refresh frame aligned multi-bitrate transcoder output |
| WO2013173683A1 (en) * | 2012-05-18 | 2013-11-21 | Motorola Mobility Llc | Synchronizing multiple transcoding devices utilizing simultaneity of receipt of multicast packets |
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