CN105744304B - A kind of processing method and processing device of EPG data - Google Patents
A kind of processing method and processing device of EPG data Download PDFInfo
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- CN105744304B CN105744304B CN201610092218.3A CN201610092218A CN105744304B CN 105744304 B CN105744304 B CN 105744304B CN 201610092218 A CN201610092218 A CN 201610092218A CN 105744304 B CN105744304 B CN 105744304B
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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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—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
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
Abstract
The invention discloses a kind of processing method and processing devices of EPG data, this method is to flow in corresponding TOT from each TS respectively, obtains the code stream time of corresponding TS stream, and according to the code stream time of each TS stream and the first current local zone time, the time offset value of each TS stream is calculated separately；When showing EPG data, according to the time offset value and the second current local zone time of the corresponding TS stream of each programme information, calculate separately the first current code stream time of the corresponding TS stream of each programme information, and then judge whether corresponding programme information is effective, and effective programme information will be judged as and shown, in this way, independently calculate the current code stream time of each TS stream, to judge corresponding programme information, to solve in laboratory environments, due to the code stream Time Inconsistency of each TS stream, and it leads to the problem of, meet the demand of EPG functional development and test under laboratory environment.
Description
Technical field
The present invention relates to MultiMedia Field more particularly to a kind of processing method and processing devices of EPG data.
Background technique
In digital television system, multinomial important service and time correlation, such as electronic program guides (Electrnic
Program Guide, EPG), subtitle etc., the related letter such as time come into force/failed comprising the business in the data of these business
Breath.Therefore, digital-television terminal equipment needs to get current time first, every vocational work could be allowed normal later.Often
One transmitting stream (Transport Stream, TS), referred to as TS stream, in all include TOT Time Offset Table (Time Offset
Table, TOT) information, digital-television terminal equipment obtains current time with the TOT information in parsing TS stream by receiving, and
According to the current time of acquisition, system time is set, so that whole system be allowed to work together.
Under user's site environment, all TS stream is issued by unified head end, and the TOT time in these TS stream believes
Breath is consistent, and digital-television terminal equipment only needs to obtain a TOT information at any frequency point (i.e. any one TS stream), i.e.,
It can stop the acquisition of TOT information, subsequent all uniform services are according to the TOT time-triggered protocol.Currently, essentially all of number
Word television terminal equipment is all made of this way.As shown in fig.1, the process of the acquisition of EPG data, maintenance and display, comprising:
1) TOT table is obtained from any one TS stream, and according to the TOT table of above-mentioned acquisition, system time is directly set,
When obtaining EPG data, judge whether each programme information is effective according to current system time, at the beginning of programme information
Between when being later than current system time, determine effectively, and effective programme information is stored in epg database.
2) when safeguarding epg database, whether directly judge in epg database at the beginning of each programme information earlier than working as
Preceding system time, if so, determining invalid and deleting invalid programme information.
3) when showing EPG data, the programme information that need to be shown is obtained from epg database, and judge opening for programme information
Whether time beginning is later than current system time, if so, determining effectively and showing effective programme information.
And in laboratory environments, the TS stream of test is usually to record in different time sections from scene, in TS stream
There is very big difference in the time that TOT time and business occur.And the variation of TOT time directly influences every business, especially
The related service of EPG, will lead to:
1) when frequency handover, due to the current time variation of TS stream, the EPG data being stored in epg database is caused to lose
Effect.
2) current time of TS stream is inconsistent, and leading to the EPG data of new frequency point is considered as invalid data, to can not deposit
Enter in epg database.
3) when EPG data is shown, mass data can not be shown due to being unsatisfactory for time requirement.
It can be seen that under the prior art, in laboratory environment, the current time of each TS stream and the related service of EPG
Time is all different, and EPG functional development is caused to be difficult to carry out with test.
Summary of the invention
The embodiment of the present invention provides a kind of processing method and processing device of EPG data, to solve in the prior art, in laboratory
EPG functional development and test are difficult to the problem of carrying out under environment.
Specific technical solution provided in an embodiment of the present invention is as follows:
A kind of processing method of EPG data, comprising:
It when determining that receiving TS flows, is flowed in corresponding TOT from each TS respectively, when obtaining the code stream of corresponding TS stream
Between, and according to the code stream time of each TS of acquisition stream and the first current local zone time, calculate separately each TS stream
Time offset value；
When showing EPG data, obtaining from epg database needs each programme information to be shown, and according to above-mentioned
The time offset value and the second current local zone time of the corresponding TS stream of each programme information, calculate separately each program letter
Cease the first current code stream time of corresponding TS stream；
According to the first current code stream time of the corresponding TS stream of each programme information of acquisition, judgement is corresponding respectively
Whether programme information is effective, and will be judged as effective programme information and show.
In the embodiment of the present invention, when determining that receiving TS flows, is flowed in corresponding TOT from each TS respectively, obtain phase
The code stream time for the TS stream answered, and according to the code stream time of each TS of acquisition stream and the first current local zone time, respectively
Calculate the time offset value of each TS stream；When showing EPG data, from epg database obtain need it is to be shown each
Programme information, and according to the time offset value and the second current local zone time of each above-mentioned programme information corresponding TS stream,
Calculate separately the first current code stream time of the corresponding TS stream of each programme information；According to each programme information of acquisition
The first current code stream time of corresponding TS stream, judge whether corresponding programme information is effective respectively, and will be judged as
The programme information of effect is shown.The code stream time is obtained in corresponding TOT in this way, no longer only flowing from a TS, but for every
One TS stream all obtains the corresponding code stream time, when showing EPG data, when independently calculating the current code stream of each TS stream
Between, whether corresponding programme information is judged according to the current code stream time of the corresponding TS stream of each programme information of calculating
Effectively, it solves in laboratory environments, due to the code stream Time Inconsistency of each TS stream, leads to the problem of, in this way, can expire
The demand of EPG functional development and test under sufficient laboratory environment, while the EPG that can be compatible under normal user circumstances again is obtained, dimension
Shield and display process.
Preferably, before showing EPG data, further being wrapped after calculating separately the time offset value that each TS flows
It includes:
EPG data is obtained from each above-mentioned TS stream respectively, according to the time offset value of each above-mentioned TS stream and is worked as
Preceding third local zone time calculates separately the second current code stream time of each TS stream；
According to the second current code stream time of each TS of acquisition stream, judge respectively every in corresponding EPG data
Whether one programme information is effective, and will be determined effective programme information and be stored in epg database；Wherein, a TS stream
In EPG data in include at least preset time period in multiple programme informations.
Preferably, further comprising:
According to the preset period, each programme information is obtained from above-mentioned epg database respectively, and according to each section
The time offset value and the 4th current local zone time of the corresponding TS stream of mesh information, it is corresponding to calculate separately each programme information
The current third code stream time of TS stream；
According to the current third code stream time of the corresponding TS stream of each programme information of acquisition, judgement is corresponding respectively
Whether programme information is effective, and will be determined effective programme information and continue to be stored in above-mentioned epg database, and will be judged to
Fixed invalid programme information is deleted from above-mentioned epg database.
Preferably, being calculated separately every according to the code stream time of each TS of acquisition stream and the first current local zone time
The time offset value of one TS stream, specifically includes:
The code stream time of each TS stream of acquisition and the difference of the first current local zone time are calculated separately, and will be calculated
The time offset value that is flowed as corresponding TS of each difference.
Preferably, calculating working as said one TS stream according to time offset value and current local zone time that a TS flows
It the preceding code stream time, specifically includes:
Calculate the time offset value and the sum of current local zone time of TS stream, and by a TS of above-mentioned calculating stream
The current code stream time that the sum of time offset value and current local zone time are flowed as said one TS.
Preferably, according to the current code stream time that a TS flows, when judging whether corresponding programme information is effective, specifically
Include:
If the current code stream time of said one TS stream is before the beginning of corresponding programme information, it is determined that on
It is effective to state programme information.
A kind of processing unit of EPG data, comprising:
First computing unit is obtained for being flowed in corresponding TOT from each TS respectively when determining that receiving TS flows
The code stream time of TS stream accordingly, and according to the code stream time of each TS of acquisition stream and the first current local zone time, divide
The time offset value of each TS stream is not calculated；
Second computing unit needs each section to be shown for being obtained from epg database when showing EPG data
Mesh information, and according to the time offset value and the second current local zone time of the corresponding TS stream of each above-mentioned programme information, divide
The first current code stream time of the corresponding TS stream of each programme information is not calculated；
Processing unit, for the first current code stream time of the corresponding TS stream of each programme information according to acquisition,
Judge whether corresponding programme information is effective respectively, and effective programme information will be judged as and shown.
In the embodiment of the present invention, when determining that receiving TS flows, is flowed in corresponding TOT from each TS respectively, obtain phase
The code stream time for the TS stream answered, and according to the code stream time of each TS of acquisition stream and the first current local zone time, respectively
Calculate the time offset value of each TS stream；When showing EPG data, from epg database obtain need it is to be shown each
Programme information, and according to the time offset value and the second current local zone time of each above-mentioned programme information corresponding TS stream,
Calculate separately the first current code stream time of the corresponding TS stream of each programme information；According to each programme information of acquisition
The first current code stream time of corresponding TS stream, judge whether corresponding programme information is effective respectively, and will be judged as
The programme information of effect is shown.The code stream time is obtained in corresponding TOT in this way, no longer only flowing from a TS, but for every
One TS stream all obtains the corresponding code stream time, when showing EPG data, when independently calculating the current code stream of each TS stream
Between, whether corresponding programme information is judged according to the current code stream time of the corresponding TS stream of each programme information of calculating
Effectively, it solves in laboratory environments, due to the code stream Time Inconsistency of each TS stream, leads to the problem of, in this way, can expire
The demand of EPG functional development and test under sufficient laboratory environment, while the EPG that can be compatible under normal user circumstances again is obtained, dimension
Shield and display process.
Preferably, before showing EPG data, second is calculated after calculating separately the time offset value that each TS flows
Unit is further used for obtaining EPG data from each above-mentioned TS stream respectively, the time migration flowed according to each above-mentioned TS
Value and current third local zone time calculate separately the second current code stream time of each TS stream；
Processing unit is further used for the second current code stream time flowed according to each TS of acquisition, judges respectively
Whether each of corresponding EPG data programme information is effective, and will be determined effective programme information and be stored in EPG data
In library；Wherein, multiple programme informations in preset time period are included at least in the EPG data in a TS stream.
Preferably, the second computing unit, is further used for obtaining from above-mentioned epg database respectively according to the preset period
Take each programme information, and it is local according to the time offset value of the corresponding TS stream of each programme information and the current the 4th when
Between, calculate separately the current third code stream time of the corresponding TS stream of each programme information；
Processing unit is further used for the current third code stream of the corresponding TS stream of each programme information according to acquisition
Time judges whether corresponding programme information is effective respectively, and will be determined effective programme information and continue to be stored in above-mentioned EPG
In database, and invalid programme information will be determined and deleted from above-mentioned epg database.
Preferably, being calculated separately every according to the code stream time of each TS of acquisition stream and the first current local zone time
When the time offset value of one TS stream, the first computing unit is specifically used for:
The code stream time of each TS stream of acquisition and the difference of the first current local zone time are calculated separately, and will be calculated
The time offset value that is flowed as corresponding TS of each difference.
Preferably, calculating working as said one TS stream according to time offset value and current local zone time that a TS flows
When the preceding code stream time, the second computing unit is specifically used for:
Calculate the time offset value and the sum of current local zone time of TS stream, and by a TS of above-mentioned calculating stream
The current code stream time that the sum of time offset value and current local zone time are flowed as said one TS.
Preferably, according to the current code stream time that a TS flows, when judging whether corresponding programme information is effective, processing
Unit is specifically used for:
If the current code stream time of said one TS stream is before the beginning of corresponding programme information, it is determined that on
It is effective to state programme information.
Detailed description of the invention
Fig. 1 is the flow diagram of acquisition, maintenance and the display of EPG data in the prior art；
Fig. 2 is in the embodiment of the present invention, and the processing method of EPG data summarizes flow chart；
Fig. 3 is the processing method detailed process schematic diagram of EPG data in the embodiment of the present invention；
Fig. 4 is the processing device structure diagram of EPG data in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, is not whole embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to solve the problem of that in the prior art EPG functional development in laboratory environments is difficult to carry out with test, this hair
In bright embodiment, a TOT is no longer only obtained, but is flowed for each TS, is flowed from each TS obtain TOT respectively, and from
The code stream time of corresponding TS stream is obtained in TOT, and calculates separately the time offset value of each TS stream；Carrying out EPG number
When according to display, the time offset value and current local zone time first flowed according to each TS calculates and obtains working as each TS stream
The preceding code stream time judges in corresponding EPG data further according to the current code stream time for calculating each TS stream obtained
Whether each programme information is effective, when determination is effective, is shown.
The present invention program is described in detail below by specific embodiment, certainly, the present invention is not limited to following realities
Apply example.
As shown in fig.2, the processing method detailed process of EPG data is as follows in the embodiment of the present invention:
Step 100: when determining that receiving TS flows, being flowed in corresponding TOT from each TS respectively, obtain corresponding TS stream
The code stream time calculate separately each and according to the code stream time of each TS of acquisition stream and the first current local zone time
The time offset value of a TS stream.
When executing step 100, specifically include:
Firstly, flowing in corresponding TOT from each TS respectively, the code stream time of corresponding TS stream is obtained.
Since in laboratory environments, the code stream time obtained from the TOT in each TS stream is largely different, because
This, in the embodiment of the present invention, no longer only obtains a TOT, but flows for each TS, will obtain TOT from TS stream, from
And obtain the code stream time of each TS stream.
Then, it according to the code stream time of each TS of acquisition stream and the first current local zone time, calculates separately each
The time offset value of a TS stream.
Specifically, the code stream time of each TS stream of acquisition and the difference of the first current local zone time are calculated separately,
And the time offset value for flowing each difference of calculating as corresponding TS.
In practice, the list that can create and safeguard a time offset value, the time for recording each TS stream are inclined
Shifting value.
Step 110: when showing EPG data, obtaining from epg database needs each programme information to be shown, and
According to the time offset value and the second current local zone time of the corresponding TS stream of each above-mentioned programme information, calculate separately each
The first current code stream time of the corresponding TS stream of a programme information.
In practice, each TS stream corresponds to a frequency (or being frequency point), in the EPG data in each TS stream at least
Including multiple programme informations in preset time period, but programme information that can not be all passes through a TS stream and is sent to number
In word television terminal, in this way, frequency point may be switched when needing to show EPG data.
When executing step 110, specifically include:
Firstly, obtaining from epg database needs each programme information to be shown.
Then, the first current code stream time of the corresponding TS stream of each above-mentioned programme information is calculated separately, it is specific to wrap
It includes: calculating separately the sum of time offset value and second local zone time currently of the corresponding TS stream of each above-mentioned programme information,
And the first current code stream time respectively by the sum of calculating, as the corresponding TS stream of each above-mentioned programme information.
For example, it is desired to displays program information 1 and programme information 2, programme information 1 is corresponding to flow 1 for TS, and programme information 2 is right
Answering is TS stream 2, then obtains the time offset value 1 of TS stream 1 and the time offset value 2 of TS stream 2 first, then calculate and obtain, TS
The second current the first code stream time=time offset value 1+ of stream 1 current local zone time, the first current code stream of TS stream 2
The second time=time offset value 2+ current local zone time.Certainly, if programme information 1 and programme information 2 are corresponding to be same
A TS stream then only needs to calculate the first code stream time of primary TS stream.
Step 120: according to the first current code stream time of the corresponding TS stream of each programme information of acquisition, sentencing respectively
Whether the corresponding programme information that breaks is effective, and will be judged as effective programme information and show.
When executing step 120, specifically include:
According to opening for current the first code stream time and each programme information of the corresponding TS stream of each programme information
Begin the time, judges whether each programme information is effective；Wherein, when judging that a programme information is effective, comprising: saved when one
It is later than the first current code stream time of the corresponding TS stream of said one programme information at the beginning of mesh information, then determines above-mentioned
One programme information is effective.
In this way, judging each program according to the first current code stream time of the corresponding TS stream of each programme information
Whether information effective, and then shows effective programme information, rather than according to the first current code stream time of a TS stream come
Judge all programme informations, when solving each TS and flowing current first code stream Time Inconsistency, cause a large amount of programme information by
In be unsatisfactory for time requirement and can not show the problem of.
Further, when obtaining EPG data from each TS stream, i.e., inclined in the time for calculating separately each TS stream
After shifting value, before showing EPG data, comprising:
Firstly, obtaining EPG data from each TS stream respectively, according to the time offset value of each above-mentioned TS stream and work as
Preceding third local zone time calculates separately the second current code stream time of each TS stream.
Wherein, the method and the method for above-mentioned calculating current the first code stream time for calculating the second current code stream time be
It is identical, that is, to calculate separately the time offset value and the sum of current third local zone time of each TS stream, and will calculate respectively
Each TS stream time offset value and the sum of current third local zone time, current the as each above-mentioned TS stream
Two code stream times.
Then, according to the second current code stream time of each TS of acquisition stream, judged in corresponding EPG data respectively
Each programme information it is whether effective, and effective programme information will be determined and be stored in epg database.
In this way, be not direct compared with current third local zone time when obtaining EPG data from each TS stream,
And equally calculate the second current code stream time of each TS stream, and then judge whether programme information is effective, it avoids
Due to the code stream Time Inconsistency of each code stream, leading to the EPG data of new frequency point is considered as invalid data, so that number can not be stored in
The problem of according to library.
Further, when safeguarding epg database, comprising:
Firstly, each programme information is obtained from epg database respectively, and according to each according to the preset period
The time offset value and the 4th current local zone time of the corresponding TS stream of programme information, it is corresponding to calculate separately each programme information
TS stream the current third code stream time.
Wherein, the method and the method for above-mentioned calculating current the first code stream time for calculating the current third code stream time be
It is identical, that is, calculate separately each programme information corresponding TS stream time offset value and the 4th current local zone time it
With, and respectively by the time offset value of each programme information of calculating corresponding TS stream and the 4th current local zone time it
With the current third code stream time flowed as the corresponding TS of each above-mentioned programme information.
Then, according to the current third code stream time of the corresponding TS stream of each programme information of acquisition, judge respectively
Whether corresponding programme information is effective, and will be determined effective programme information and continue to be stored in epg database, and will be by
Determine that invalid programme information is deleted from epg database.
In this way, judge whether programme information effective when safeguarding epg database, be equally according to it is calculated each
The current third code stream time of programme information corresponding TS stream, avoid in frequency handover, due to each code stream code stream when
Between it is different, cause the programme information being stored in epg database fail the problem of.
Further description is made to above-described embodiment using a specific application scenarios below.Referring particularly to Fig. 3
Shown, in the embodiment of the present invention, the process of the processing method of EPG data is as follows:
1) it is flowed for each TS, obtains the code stream time of corresponding TS stream from the TOT in each TS respectively, according to
The code stream time of each TS stream obtained and current local zone time, calculate separately the time offset value of each TS stream.
When obtaining EPG data, firstly, according to time offset value and current local zone time that each TS flows, respectively
Calculate the current code stream time of corresponding TS stream.
Then, when judging whether to be later than the current code stream of corresponding TS stream at the beginning of each programme information respectively
Between, if so, determining that the programme information is effective, and it is stored in epg database.
2) when safeguarding epg database, firstly, obtaining each of epg database programme information, and according to each section
The time offset value of the corresponding TS stream of mesh information, when calculating separately the current code stream of the corresponding TS stream of each programme information
Between.
Then, judge the current code stream time whether flowed earlier than corresponding TS at the beginning of each programme information,
If so, determining that the programme information is invalid, and delete invalid programme information.
3) when showing EPG data, firstly, obtaining each programme information that need to be shown from epg database, and according to every
The time offset value of the corresponding TS stream of one programme information, calculates separately the current code of the corresponding TS stream of each programme information
Flow the time.
Then, judge the current code stream time for whether being later than corresponding TS stream at the beginning of each programme information,
If so, determining that the programme information is effective, and effective programme information is shown.
Based on the above embodiment, as shown in fig.4, in the embodiment of the present invention, the processing unit of EPG data is specifically included:
First computing unit 20, for flowing in corresponding TOT, obtaining from each TS respectively when determining that receiving TS flows
Take the code stream time of corresponding TS stream, and according to the code stream time of each TS of acquisition stream and the first current local zone time,
Calculate separately the time offset value of each TS stream；
Second computing unit 21, for when show EPG data, obtained from epg database need it is to be shown each
Programme information, and according to the time offset value and the second current local zone time of each above-mentioned programme information corresponding TS stream,
Calculate separately the first current code stream time of the corresponding TS stream of each programme information；
Processing unit 22, when the first current code stream for the corresponding TS stream of each programme information according to acquisition
Between, judge whether corresponding programme information is effective respectively, and effective programme information will be judged as and shown.
Preferably, before showing EPG data, second is calculated after calculating separately the time offset value that each TS flows
Unit 21 is further used for obtaining EPG data from each above-mentioned TS stream respectively, and the time flowed according to each above-mentioned TS is inclined
Shifting value and current third local zone time calculate separately the second current code stream time of each TS stream；
Processing unit 22 is further used for the second current code stream time flowed according to each TS of acquisition, sentences respectively
Whether each of the corresponding EPG data programme information that breaks is effective, and will be determined effective programme information and be stored in EPG number
According in library；Wherein, multiple programme informations in preset time period are included at least in the EPG data in a TS stream.
Preferably, the second computing unit 21, is further used for according to the preset period, respectively from above-mentioned epg database
Each programme information is obtained, and local according to the time offset value and the current the 4th of the corresponding TS stream of each programme information
Time calculates separately the current third code stream time of the corresponding TS stream of each programme information；
Processing unit 22 is further used for the current third yard of the corresponding TS stream of each programme information according to acquisition
Flow the time, judge whether corresponding programme information effective respectively, and will be determined effective programme information continue to be stored in it is above-mentioned
In epg database, and invalid programme information will be determined and deleted from above-mentioned epg database.
Preferably, being calculated separately every according to the code stream time of each TS of acquisition stream and the first current local zone time
When the time offset value of one TS stream, the first computing unit 20 is specifically used for:
The code stream time of each TS stream of acquisition and the difference of the first current local zone time are calculated separately, and will be calculated
The time offset value that is flowed as corresponding TS of each difference.
Preferably, calculating working as said one TS stream according to time offset value and current local zone time that a TS flows
When the preceding code stream time, the second computing unit 21 is specifically used for:
Calculate the time offset value and the sum of current local zone time of TS stream, and by a TS of above-mentioned calculating stream
The current code stream time that the sum of time offset value and current local zone time are flowed as said one TS.
Preferably, according to the current code stream time that a TS flows, when judging whether corresponding programme information is effective, processing
Unit 22 is specifically used for:
If the current code stream time of said one TS stream is before the beginning of corresponding programme information, it is determined that on
It is effective to state programme information.
In conclusion, when determining that receiving TS flows, flowing corresponding TOT from each TS respectively in the embodiment of the present invention
In, the code stream time of corresponding TS stream is obtained, and local according to the code stream time and current first of each TS of acquisition stream
Time calculates separately the time offset value of each TS stream；When showing EPG data, is obtained from epg database and need to show
Each programme information, and according to the time offset value of each above-mentioned programme information corresponding TS stream and current second
The ground time calculates separately the first current code stream time of the corresponding TS stream of each programme information；According to each of acquisition
The first current code stream time of programme information corresponding TS stream, judge whether corresponding programme information is effective respectively, and will be by
It is determined as that effective programme information is shown.The code stream time is obtained in corresponding TOT in this way, no longer only flowing from a TS, and
It is to obtain the corresponding code stream time for each TS stream, when showing EPG data, independently calculates the current of each TS stream
The code stream time, corresponding program is judged according to the current code stream time of each programme information of calculating corresponding TS stream
Whether information is effective, solves in laboratory environments, due to the code stream Time Inconsistency of each TS stream, leads to the problem of, this
Sample had not only been able to satisfy the demand of EPG functional development and test under laboratory environment, but also can be compatible under normal user circumstances
EPG is obtained, is safeguarded and display process.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of processing method of electronic program guide (EPG) data characterized by comprising
It when determining that receiving transmitting stream TS flows, flows in corresponding TOT Time Offset Table TOT, obtains corresponding from each TS respectively
The code stream time of TS stream, and according to the code stream time of each TS of acquisition stream and the first current local zone time, it calculates separately
The time offset value of each TS stream；
When showing EPG data, obtaining from epg database needs each programme information to be shown, and according to described each
The time offset value and the second current local zone time of the corresponding TS stream of a programme information, calculate separately each programme information pair
The the first current code stream time for the TS stream answered；Wherein, the time offset value and current local zone time flowed according to a TS, meter
It the current code stream time for calculating one TS stream, specifically includes: calculating the time offset value and current local that a TS flows
The sum of time, and it regard the sum of the time offset value of a TS of calculating stream and current local zone time as one TS
The current code stream time of stream；
According to the first current code stream time of the corresponding TS stream of each programme information of acquisition, corresponding program is judged respectively
Whether information is effective, and will be judged as effective programme information and show.
2. the method as described in claim 1, which is characterized in that after the time offset value for calculating separately each TS stream,
Before showing EPG data, further comprise:
EPG data is obtained from each described TS stream respectively, according to the time offset value of each described TS stream and currently
Third local zone time calculates separately the second current code stream time of each TS stream；
According to the second current code stream time of each TS of acquisition stream, each of corresponding EPG data is judged respectively
Whether programme information is effective, and will be determined effective programme information and be stored in epg database；Wherein, in a TS stream
Multiple programme informations in preset time period are included at least in EPG data.
3. method according to claim 2, which is characterized in that further comprise:
According to the preset period, each programme information is obtained from the epg database respectively, and believe according to each program
The time offset value and the 4th current local zone time for ceasing corresponding TS stream calculate separately the corresponding TS stream of each programme information
The current third code stream time；
According to the current third code stream time of the corresponding TS stream of each programme information of acquisition, corresponding program is judged respectively
Whether information is effective, and will be determined effective programme information and continue to be stored in the epg database, and will be determined nothing
The programme information of effect is deleted from the epg database.
4. method as claimed in claim 1,2 or 3, which is characterized in that according to each TS of acquisition stream the code stream time and
The first current local zone time calculates separately the time offset value of each TS stream, specifically includes:
Calculate separately the code stream time of each TS stream of acquisition and the difference of the first current local zone time, and by the every of calculating
The time offset value that one difference is flowed as corresponding TS.
5. method as claimed in claim 1,2 or 3, which is characterized in that according to the current code stream time that a TS flows, judgement
When whether corresponding programme information is effective, specifically include:
If the current code stream time of one TS stream is before the beginning of corresponding programme information, it is determined that the section
Mesh information is effective.
6. a kind of processing unit of electronic program guide (EPG) data characterized by comprising
First computing unit, for flowing corresponding time migration from each TS respectively when determining that receiving transmitting stream TS flows
In table TOT, the code stream time of corresponding TS stream is obtained, and according to the code stream time of each TS of acquisition stream and current first
Local zone time calculates separately the time offset value of each TS stream；
Second computing unit needs each program letter to be shown for being obtained from epg database when showing EPG data
Breath, and according to the time offset value and the second current local zone time of the corresponding TS stream of each described programme information, it counts respectively
Calculate the first current code stream time of the corresponding TS stream of each programme information；Wherein, the time offset value flowed according to a TS
With current local zone time, when calculating the current code stream time of one TS stream, the second computing unit is specifically used for: calculating
The sum of time offset value and current local zone time of one TS stream, and by the time offset value of a TS of calculating stream and
The current code stream time that the sum of current local zone time is flowed as one TS；
Processing unit, for the first current code stream time of the corresponding TS stream of each programme information according to acquisition, respectively
Judge whether corresponding programme information is effective, and effective programme information will be judged as and shown.
7. device as claimed in claim 6, which is characterized in that after the time offset value for calculating separately each TS stream,
Before showing EPG data, the second computing unit is further used for obtaining EPG data from each described TS stream respectively, according to
The time offset value and current third local zone time of each TS stream, calculate separately current second of each TS stream
The code stream time；
Processing unit is further used for the second current code stream time flowed according to each TS of acquisition, and judgement is corresponding respectively
Each of EPG data programme information it is whether effective, and effective programme information will be determined and be stored in epg database
In；Wherein, multiple programme informations in preset time period are included at least in the EPG data in a TS stream.
8. device as claimed in claim 7, which is characterized in that the second computing unit was further used for according to the preset period,
Each programme information is obtained from the epg database respectively, and according to the time of the corresponding TS stream of each programme information
Deviant and the 4th current local zone time, when calculating separately the current third code stream of the corresponding TS stream of each programme information
Between；
Processing unit, when being further used for the current third code stream according to the corresponding TS stream of each programme information of acquisition
Between, judge whether corresponding programme information is effective respectively, and effective programme information will be determined and continue to be stored in the EPG number
According in library, and invalid programme information will be determined and deleted from the epg database.
9. the device as described in claim 6,7 or 8, which is characterized in that according to each TS of acquisition stream the code stream time and
The first current local zone time, when calculating separately the time offset value of each TS stream, the first computing unit is specifically used for:
Calculate separately the code stream time of each TS stream of acquisition and the difference of the first current local zone time, and by the every of calculating
The time offset value that one difference is flowed as corresponding TS.
10. the device as described in claim 6,7 or 8, which is characterized in that according to the current code stream time that a TS flows, sentence
When whether the corresponding programme information that breaks is effective, processing unit is specifically used for:
If the current code stream time of one TS stream is before the beginning of corresponding programme information, it is determined that the section
Mesh information is effective.
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| CN111988648A (en) * | 2020-08-27 | 2020-11-24 | 青岛海信传媒网络技术有限公司 | Time display method and display device |
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| CN101207761A (en) * | 2007-12-18 | 2008-06-25 | 深圳市同洲电子股份有限公司 | Method and system for program scheduled recording and digital television receiver |
| CN102281409B (en) * | 2010-06-11 | 2013-08-14 | 深圳Tcl新技术有限公司 | Television capable of automatically calibrating time and time calibration method thereof |
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