CN104168504B - A kind of method and device of switching programme of digital type TV - Google Patents
A kind of method and device of switching programme of digital type TV Download PDFInfo
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- CN104168504B CN104168504B CN201410376791.8A CN201410376791A CN104168504B CN 104168504 B CN104168504 B CN 104168504B CN 201410376791 A CN201410376791 A CN 201410376791A CN 104168504 B CN104168504 B CN 104168504B
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Abstract
The present invention relates to digital TV technology, a kind of method and device of switching programme of digital type TV is disclosed.Methods described includes：What local side receiving set up box was sent switches to the program switching command of target number TV programme, and the program switching command includes the exclusive identification code of the target number TV programme；According to the exclusive identification code of the target number TV programme, by the target number TV programme by the frequency of the fixation configured in advance for the set top box, send to the set top box.The method provided by the present invention can improve the speed of switching programme of digital type TV, avoid mosaic occur during switching programme of digital type TV.
Description
Technical field
The present invention relates to digital TV technology, more particularly to a kind of method and device of switching programme of digital type TV.
Background technology
TV plays important role as the spreading tool of media information in the life of people.With science and technology
Development, the appearance of set top box enriches the digital television program life of people.People are by set top box operations, realizing switching number
Word TV programme.
In correlation technique, digital television program is sent to set top box by cable network, needs to switch numeral electricity in user
The switching of program is carried out when depending on program by set top box, current digital television program is switched to the number of targets of user's selection
In word TV programme.When target number TV programme and current digital television program be not on a frequency, set top box need pair
Frequency is switched over, and is switched on the frequency of target number TV programme to realize the switching of digital television program.
However, in correlation technique, when switching frequency by set top box, switching time is longer, causes the waste of time cost；
In addition, in correlation technique, set top box is in switching programme of digital type TV because digital television program can not be positioned accurately
Position, and cause easily mosaic occur, cause television picture quality during switching programme of digital type TV low.
Therefore, a kind of method of switching programme of digital type TV is needed badly, the problem of to overcome in correlation technique.
The content of the invention
It is an object of the invention to provide a kind of method and device of switching programme of digital type TV, to overcome number in correlation technique
The switching of word TV programme is slow, the problem of easily there is mosaic.
The present invention provides a kind of method of switching programme of digital type TV, including：
What local side receiving set up box was sent switches to the program switching command of target number TV programme, and the program is cut
Changing instruction includes the exclusive identification code of the target number TV programme；
According to the exclusive identification code of the target number TV programme, by the target number TV programme by being in advance
The frequency of the fixation of the set top box configuration, sends to the set top box.
The present invention provides a kind of device of switching programme of digital type TV, including：
Command reception module, cuts for the program for switching to target number TV programme that local side receiving set up box is sent
Instruction is changed, the program switching command includes the exclusive identification code of the target number TV programme；
Sending module, for the exclusive identification code according to the target number TV programme, by the target number TV
Program is sent to the set top box by the frequency of the fixation configured in advance for the set top box.
The present invention can at least have the advantages that：By local side switch switching programme of digital type TV, by target
Digital television program is by being that the frequency that set top box is set is sent to set top box in advance.Compared to switching digital TV in correlation technique
In the scheme of program, the scheme of switching programme of digital type TV provided in an embodiment of the present invention, during entirely switching program
Because being switched over without the frequency to digital television program, so as to improve the speed of switching programme of digital type TV.By target
Digital television program is sent to before set top box, by carrying out I frame alignment to target number TV programme, is realized in switching numeral
Can be from correct presentation of video frames target number TV programme, so that the problem of avoiding mosaic after TV programme；By to mesh
Standard digital television program enters performing PCR and PTS corrections, so that the problem of further avoiding mosaic, frozen frame and detonans；By to mesh
The audio frame of standard digital television program is set to mute audio frame, the problem of further avoiding detonans.In addition, compared to traditional phase
The method of switching programme of digital type TV in the technology of pass, the embodiment of the present invention can also by all business in local side control, thus,
New business can be disposed in the case of not upgrading set top box.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
Can the limitation present invention.
Brief description of the drawings
Fig. 1 is the exemplary process diagram of the method for switching programme of digital type TV in the embodiment of the present invention；
Fig. 2 is the another exemplary flow chart of the method for switching programme of digital type TV in the embodiment of the present invention；
Fig. 3 is the another exemplary flow chart of the method for switching programme of digital type TV in the embodiment of the present invention；
Fig. 4 is the schematic diagram of the device of switching programme of digital type TV in the embodiment of the present invention；
Fig. 5 is another schematic diagram of the device of switching programme of digital type TV in the embodiment of the present invention.
Embodiment
Embodiments of the invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the present invention.
The embodiment of the present invention provides a kind of method of switching programme of digital type TV, it is adaptable to local side.In the embodiment of the present invention
In the technical scheme of offer, received by local side and managing digital television program, target number electricity is switched in set top box requirement
During depending on program, target number TV programme are sent to set top box by local side by the frequency configured in advance for set top box.Whole
Because being switched over without the frequency to digital television program during switching program, DTV section is switched fast so as to realize
Mesh.In addition local side after digital television program is received, is also handled digital television program in the embodiment of the present invention, to advise
The problem of mosaic occur is kept away during switching programme of digital type TV, so that picture matter when improving switching programme of digital type TV
Amount.In addition, compared to the method for switching programme of digital type TV in traditional correlation technique, the embodiment of the present invention can also by live and
Program request and other business that can be controlled in local side transfer to local side control, therefore, it is possible in the case of not upgrading set top box
Dispose new business.
The method to switching programme of digital type TV in the embodiment of the present invention is described in detail below.
Embodiment one
As shown in figure 1, being the exemplary process diagram of the method for switching programme of digital type TV in the embodiment of the present invention, this method
Including step 101- steps 102：
Step 101：What local side receiving set up box was sent switches to the program switching command of target number TV programme, institute
Stating program switching command includes the exclusive identification code of the target number TV programme.
Step 102：According to the exclusive identification code of the target number TV programme, the target number TV programme are led to
After the frequency for being in advance the fixation that the set top box is configured, send to the set top box.
Wherein, in one embodiment, before step 101, digital television program, the digital number can also be received
TV programme include digital television program of the broadcast to local side and/or the digital television program for user's program request, wherein, it is described to supply
The TV programme of user's program request are the previous TV programme prestored.Wherein it is possible to be broadcasted original to the number of set top box
Word TV programme are all broadcasted to local side, and unified management and control is carried out to the digital television program of broadcast by local side.The present invention
Embodiment is conducive to all business in local side control, therefore, it is possible to dispose new business in the case of not upgrading set top box.
Wherein, in one embodiment, step 102, which can perform, is：When the target number TV programme are broadcast to office
During the digital television program at end, according to the exclusive identification code of the target number TV programme, by the target number TV Festival
Mesh is forwarded to the set top box by the frequency of the fixation configured in advance for the set top box；When the target number TV Festival
When mesh is the digital television program for user's program request, according to the exclusive identification code of the target number TV programme, from storage institute
The target number TV programme are obtained in the storage device for stating target number TV programme；By the target number electricity of acquisition
Program is regarded by the frequency of the fixation configured in advance as the set top box, is sent to the set top box.Wherein, local side is realized pair
The forwarding of live digital television program (broadcasting to the digital television program of local side), and the TV programme to user's program request hair
Send, it is achieved thereby that in local side centralized Control digital television program, so that be conducive to all business in local side control, because
And, new business can be disposed in the case of not upgrading set top box.
Wherein, in one embodiment, after step 101, can also be by the number of targets and before step 102
Frame of video in word TV programme carries out I frame alignment operations, that is, finds the starting point of the I frames of target number TV programme, be used for
Indicate that since set top box, when decoding target number TV programme, solve receiving first I frame of target number TV programme
Code is simultaneously played, and is decoded since accurate point so as to realize and is played target number TV programme, it is to avoid set top box receives number
After word TV programme since it is random a little decoding and cause mosaic, improve the accuracy of switching programme of digital type TV and cut
The image quality changed after digital television program.
Wherein, in one embodiment, after step 101, can also be to the number of targets and before step 102
The PCR (program clock reference stamp, program clock reference stamps) and PTS of word TV programme
(time mark is presented in presentation time stamp) is corrected.Set top box is to control sound to regard according to PCR and PTS
Synchronization between the clock frequency and audio frequency and video of frequency output.The PCR and PTS that different digital TV programme are carried are different times
Axle, when set top box is switched to another digital television program from a digital television program, because PCR and PTS is jumped
Become, set top box can be caused to empty the audio and video buffer of a digital television program and from the next DTV section being switched to
Mesh restarts decoding, so results in set top box when exporting digital television program, it may occur that obvious frozen frame is (for example, electricity
Depending on picture still on piece image), or even there is mosaic and sonic boom.In embodiments of the present invention, by by DTV
The PCR and PTS of program are corrected in same timeline so that the PCR and pts value of different digital TV programme synchronization be
Identical, when switching programme of digital type TV, the PCR and PTS of the target number TV programme that set top box is received with before switching
Digital television program be continuous, although the content of digital television program is changed, the decoding process of set top box
It is continuous, therefore will not occurs the phenomenons such as frozen frame, mosaic and sonic boom, compared with traditional switching mode, it is to avoid frozen frame,
The problem of mosaic and sonic boom, improve the quality of switching programme of digital type TV.Specifically, can be by formula (1) to number of targets
The PCR of word TV programme is corrected, and the PTS of target number TV programme is corrected by formula (2)：
PCR '=PCR+STC-STC0 (1)
In formula (1), system clock when STC0 is initialization, STC is that target number TV programme are corresponding current
System clock, PCR is the PCR value before the correction of target number TV programme, and PCR ' is the PCR value after correction.
PTS '=PTS+STC-STC0 (2)
In formula (1), system clock when STC0 is initialization, STC is that target number TV programme are corresponding current
System clock, PTS is the pts value before the correction of target number TV programme, and PTS ' is the pts value after correction.
In one embodiment, after step 101, can also be by the target number TV and before step 102
In program, autotomy the preset duration that point of penetration when shifting to the target number TV programme starts audio frame be set to it is quiet
Sound audio frame.Wherein, preset duration can determine according to the frame number of audio frame, such as incision during adaptive switched digital television program
First audio frame that point starts；Preset duration can also determine according to time span, such as 0.1 second, i.e., adaptive switched numeral electricity
Audio frame in point of penetration during depending on program start 0.1 second is both configured to mute audio frame.The embodiment of the present invention is by by sound
Frequency frame is set to mute audio frame, so as to be Jing Yin effect, Ke Yiyou when having reached and having commenced play out target number TV programme
Effect prevent when commencing play out target number TV programme because audio frame is imperfect and caused by sonic boom, which thereby enhance and cut
Change the audio quality of digital television program.
In addition, in embodiments of the present invention, before step 102, first third-party multimedia can also be sent to machine
Top box, will be got up by the saved time utilization of the method for switching programme of digital type TV of the embodiment of the present invention, to improve to cutting
The utilization rate of the time of digital television program is changed, image quality is improved.
To sum up, the embodiment of the present invention is controlled and managing digital television program by local side, and by being set in advance for set top box
Target number TV programme are sent to set top box by the frequency put, to realize in local side as set top box switching programme of digital type TV.
Compared with correlation technique, because without the frequency to digital television program during entirely switching program in the embodiment of the present invention
Switch over, so as to improve the speed of switching programme of digital type TV.
The method of switching programme of digital type TV in the embodiment of the present invention is carried out below by several simple embodiments detailed
Describe in detail bright.
Embodiment two
It is that set top box switches broadcast to the DTV of local side by local side switch to set local side switch in local side
Exemplified by program, the method to switching programme of digital type TV in the embodiment of the present invention is described in detail, as shown in Fig. 2 this method
Including step 201- steps 208：
Step 201：Local side switch receives broadcast to the digital television program of local side.
Step 202：Set top box sends program switching command to local side switch, and the program switching command includes target
The exclusive identification code of digital television program.
Step 203：The program switching command that local side switch receiving set up box is sent.
Step 204：Local side switch, will be with unique mark according to the exclusive identification code of the target number TV programme
Know the corresponding destination television program of code and carry out I frame alignment operations.
Step 205：Local side switch is corrected to the PCR and PTS of the target number TV programme.
Step 206：Local side switch is autotomyed by the target number TV programme and shifts to the target number TV
The audio frame for the preset duration that point of penetration during program starts is set to mute audio frame.
Wherein, step 204, step 205, step 206 execution sequence it is unrestricted, you can with simultaneously perform step 204,
Step 205, step 206；The execution sequence between these three steps can also be changed.
Step 207：Local side switch is by the target number TV programme being set to after mute audio frame by being in advance institute
The frequency of the fixation of set top box configuration is stated, is sent to the set top box.
Step 208：Set top box is received according to the PCR and PTS of target number TV programme after target number TV programme,
Target number TV programme are decoded, target is commenced play out from first I frame after target number TV programme is switched to
Digital television program.
The embodiment of the present invention is realized by local side switch switching programme of digital type TV, and target number TV programme are passed through
The frequency set in advance for set top box is sent to set top box.Compared to the scheme of switching programme of digital type TV in correlation technique, this hair
In the scheme for the switching programme of digital type TV that bright embodiment is provided, because without to DTV during entirely switching program
The frequency of program is switched over, so as to improve the speed of switching programme of digital type TV.Sent by target number TV programme
To before set top box, by carrying out I frame alignment to target number TV programme, realization can be from just after switching programme of digital type TV
True presentation of video frames target number TV programme, so that the problem of avoiding mosaic；By entering to target number TV programme
Performing PCR and PTS corrections, so that the problem of further avoiding mosaic, frozen frame and detonans；By to target number TV programme
Audio frame is set to mute audio frame, the problem of further avoiding detonans.In addition, digital compared to switching in traditional correlation technique
The method of TV programme, the embodiment of the present invention can also be by all business in local side control, therefore, it is possible on machine top of not upgrading
New business is disposed in the case of box.
Embodiment three
To be sent by target number TV programme to before set top box, third party's multimedia is sent to set top box and carried out
Exemplified by broadcasting, the method to switching programme of digital type TV in the embodiment of the present invention is described in detail, as shown in figure 3, this method
Including step 301- steps 306：
Step 301：Local side receives digital television program.
Step 302：Set top box, which is sent, switches to the program switching commands of target number TV programme to local side switch, institute
Stating program switching command includes the exclusive identification code of the target number TV programme.
Step 303：The program switching command that local side receiving set up box is sent.
Step 304：Local side sends one section of public good propaganda film to set top box.
Step 305：Set top box receives public good propaganda film, exports and is shown to display after being decoded to public good propaganda film.
Step 306：Local side is according to the exclusive identification codes of the target number TV programme, by the target number TV Festival
Mesh is sent to the set top box by the frequency of the fixation configured in advance for the set top box.
By before thinking that set top box sends target number TV programme, sending one section of third party many in the embodiment of the present invention
Media are to set top box, because shortening the time of switching programme of digital type TV, therefore can be increased by sending third party's multimedia
Plus the utilization rate of the time to switching programme of digital type TV, the utilization rate to Internet resources can also be improved.
A kind of device of switching programme of digital type TV is also provided in the embodiment of the present invention, for local side, the device can be
Switch can also be the building block of switching.As shown in figure 4, being the device of switching programme of digital type TV in the embodiment of the present invention
Illustrative diagram, the device includes：
Command reception module 401, the section for switching to target number TV programme sent for local side receiving set up box
Mesh switching command, the program switching command includes the exclusive identification code of the target number TV programme；
Sending module 402, for the exclusive identification code according to the target number TV programme, by target number electricity
Program is regarded by the frequency of the fixation configured in advance as the set top box, is sent to the set top box.
Wherein, in one embodiment, as shown in figure 5, described device also includes：
Receiving module 403, mesh is switched to for the command reception module what local side receiving set up box was sent
Before the program switching command of standard digital television program, digital television program is received, the digital number TV programme include wide
The digital television program and/or the digital television program for user's program request of local side are cast to, wherein, the TV of the confession user program request
Program is the previous TV programme prestored.
Wherein, in one embodiment, as shown in figure 5, the sending module 402 includes：
Retransmission unit 404, during for being broadcasted when the target number TV programme to the digital television program of local side, root
According to the exclusive identification code of the target number TV programme, by the target number TV programme by being the set top box in advance
The frequency of the fixation of configuration, is forwarded to the set top box；
Transmitting element 405, for when the target number TV programme be for user's program request digital television program when, root
According to the exclusive identification code of the target number TV programme, obtained from the storage device for storing the target number TV programme
The target number TV programme；By the target number TV programme of acquisition by being consolidating for set top box configuration in advance
Fixed frequency, sends to the set top box.
Wherein, in one embodiment, as shown in figure 5, described device also includes：
Alignment module 406, for switching to target what local side receiving set up box was sent in the command reception module
After the program switching command of digital television program, and in the sending module target number TV programme are passed through advance
The frequency of the fixation configured for the set top box, sends to before the set top box, by the target number TV programme
Frame of video carries out I frame alignment operations.
Wherein, in one embodiment, as shown in figure 5, described device also includes：
Correction module 407, for switching to target what local side receiving set up box was sent in the command reception module
After the program switching command of digital television program, and in the sending module target number TV programme are passed through advance
The frequency of the fixation configured for the set top box, sends to before the set top box, to the journey of the target number TV programme
Sequence clock reference stamps PCR and presentation time mark PTS are corrected.
Wherein, in one embodiment, as shown in figure 5, described device also includes：
Jing Yin module 408, for switching to target what local side receiving set up box was sent in the command reception module
After the program switching command of digital television program, and in the sending module target number TV programme are passed through advance
The frequency of the fixation configured for the set top box, sends to before the set top box, by the target number TV programme,
The audio frame for autotomying the preset duration that point of penetration when shifting to the target number TV programme starts is set to mute audio frame.
On the device in above-described embodiment, wherein modules perform the concrete mode of operation in relevant this method
Embodiment in be described in detail, explanation will be not set forth in detail herein.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (12)
1. a kind of method of switching programme of digital type TV, it is characterised in that methods described includes：
What local side receiving set up box was sent switches to the program switching command of target number TV programme, and the program switching refers to
Order includes the exclusive identification code of the target number TV programme；
According to the exclusive identification code of the target number TV programme, by the target number TV programme by being described in advance
The frequency of the fixation of set top box configuration, sends to the set top box.
2. according to the method described in claim 1, it is characterised in that what the local side receiving set up box was sent switches to target
Before the program switching command of digital television program, methods described also includes：
Digital television program is received, the digital television program includes broadcast to the digital television program of local side and/or supplies user
The digital television program of program request, wherein, the digital television program of the confession user program request is the previous TV Festival prestored
Mesh.
3. method according to claim 2, it is characterised in that
The exclusive identification code according to the target number TV programme, by the target number TV programme by being in advance
The frequency of the fixation of the set top box configuration, sends to the set top box, including：
When digital television program of the target number TV programme for broadcast to local side, according to the target number TV Festival
Purpose exclusive identification code, by the target number TV programme by the frequency of the fixation configured in advance for the set top box, turns
It is sent to the set top box；
When the target number TV programme are the digital television program for user's program request, according to the target number TV Festival
Purpose exclusive identification code, the target number TV Festival is obtained from the storage device for storing the target number TV programme
Mesh；By the target number TV programme of acquisition by the frequency of the fixation configured in advance for the set top box, send to institute
State set top box.
4. according to the method described in claim 1, it is characterised in that
What the local side receiving set up box was sent switches to after the program switching command of target number TV programme, and is inciting somebody to action
The target number TV programme by advance be the set top box configure fixation frequency, send to the set top box it
Before, methods described also includes：
Frame of video in the target number TV programme is subjected to I frame alignment operations.
5. according to the method described in claim 1, it is characterised in that
What the local side receiving set up box was sent switches to after the program switching command of target number TV programme, and is inciting somebody to action
The target number TV programme by advance be the set top box configure fixation frequency, send to the set top box it
Before, methods described also includes：
Program clock reference stamps PCR and presentation time mark PTS to the target number TV programme are corrected.
6. according to the method described in claim 1, it is characterised in that
What the local side receiving set up box was sent switches to after the program switching command of target number TV programme, and is inciting somebody to action
The target number TV programme by advance be the set top box configure fixation frequency, send to the set top box it
Before, methods described also includes：
It is pre- by the target number TV programme, autotomy that point of penetration when shifting to the target number TV programme starts
If the audio frame of duration is set to mute audio frame.
7. a kind of device of switching programme of digital type TV, it is characterised in that described device includes：
Command reception module, refers to for the program for the switching to target number TV programme switching that local side receiving set up box is sent
Order, the program switching command includes the exclusive identification code of the target number TV programme；
Sending module, for the exclusive identification code according to the target number TV programme, by the target number TV programme
By being the frequency for the fixation that the set top box is configured in advance, send to the set top box.
8. device according to claim 7, it is characterised in that described device also includes：
Receiving module, target number electricity is switched to for the command reception module what local side receiving set up box was sent
Before the program switching command of program, digital television program is received, the digital television program includes broadcast to the number of local side
Word TV programme and/or the digital television program for user's program request, wherein, the digital television program of the confession user program request is pre-
The previous TV programme first stored.
9. device according to claim 8, it is characterised in that the sending module includes：
Retransmission unit, during for being broadcasted when the target number TV programme to the digital television program of local side, according to described
The exclusive identification code of target number TV programme, by the target number TV programme by being what the set top box was configured in advance
Fixed frequency, is forwarded to the set top box；
Transmitting element, for when the target number TV programme are the digital television program for user's program request, according to described
The exclusive identification code of target number TV programme, the mesh is obtained from the storage device for storing the target number TV programme
Standard digital television program；The target number TV programme of acquisition are passed through into the frequency of the fixation configured in advance for the set top box
Point, sends to the set top box.
10. device according to claim 7, it is characterised in that described device also includes：
Alignment module, for switching to target number TV what local side receiving set up box was sent in the command reception module
After the program switching command of program, and the sending module by the target number TV programme by advance be the machine
The frequency of the fixation of top box configuration, sends to before the set top box, the frame of video in the target number TV programme is entered
Row I frame alignment operations.
11. device according to claim 7, it is characterised in that described device also includes：
Correction module, for switching to target number TV what local side receiving set up box was sent in the command reception module
After the program switching command of program, and the sending module by the target number TV programme by advance be the machine
The frequency of the fixation of top box configuration, sends to before the set top box, to the program clock base of the target number TV programme
Fiducial mark remembers that PCR and presentation time mark PTS are corrected.
12. device according to claim 7, it is characterised in that described device also includes：
Jing Yin module, for switching to target number TV what local side receiving set up box was sent in the command reception module
After the program switching command of program, and the sending module by the target number TV programme by advance be the machine
The frequency of the fixation of top box configuration, sends to before the set top box, by the target number TV programme, autotomys and shift to
The audio frame for the preset duration that point of penetration during the target number TV programme starts is set to mute audio frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410376791.8A CN104168504B (en) | 2014-08-01 | 2014-08-01 | A kind of method and device of switching programme of digital type TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410376791.8A CN104168504B (en) | 2014-08-01 | 2014-08-01 | A kind of method and device of switching programme of digital type TV |
Publications (2)
| Publication Number | Publication Date |
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| CN104168504A CN104168504A (en) | 2014-11-26 |
| CN104168504B true CN104168504B (en) | 2017-09-12 |
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