CN105916009B - A kind of method and device for recording program - Google Patents
A kind of method and device for recording program Download PDFInfo
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- CN105916009B CN105916009B CN201610293174.0A CN201610293174A CN105916009B CN 105916009 B CN105916009 B CN 105916009B CN 201610293174 A CN201610293174 A CN 201610293174A CN 105916009 B CN105916009 B CN 105916009B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
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- Television Signal Processing For Recording (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention discloses a kind of method and device for recording program, the transport stream TS issued by receiving front-end, the TS includes network information table NIT, includes pre-set private setting descriptor PRD in the NIT, the PRD is for describing performance recording information；In the case where set-top box is opened, the NIT is parsed, obtains performance recording information；Program is recorded according to the performance recording information, to realize control of the front end to PVR, easy to operate, exploitativeness is strong, it is at low cost, without excessive hardware cost and human resources etc.；The production of set-top box manufacturer can preferably cooperate operator with the set-top box of front-end control PVR, improve product competitiveness.
Description
Technical field
The present embodiments relate to the technical field of DTV more particularly to a kind of method and devices for recording program.
Background technique
With the development of sized enterprises in chinese DTV industry and the growth in market, personal video record (Personal Video
Recorder, PVR) technology will become following one of the developing direction in conjunction with set-top box.PVR technology and DTV STB
In conjunction with and generate PVR set-top box, bring digitized video recording playback and content interaction.PVR DTV STB is as one
The very distinctive digital TV terminal of kind, has a vast market foreground.
Under the prior art, PVR process flow is as follows: program plays the storage of --- performance recording --- program and playback.Directly
It broadcasts to flow demodulate by set-top box tuner and gets transport stream TS, rear TS stream obtains PSI/SI information, base by demultiplexing
The data such as this stream, data flow.
Being accomplished by the information for performance recording, demultiplexed and will be stored in shifting in performance recording link
In the storage equipment such as dynamic hard disk, information includes: to record program PAT data content, record program PMT data content, record program
Basic flow data pointed by the PID of basic flow described in PMT to record scrambled program can also store ECM data it is related letter
Breath.Information above is multiplexed into transport stream all the way to be stored in movable storage device again, just completes performance recording.
Existing performance recording is more passive, and PVR causes the completion of PVR performance recording to depend on so not by front-end control
Terminal operation, front end not can control the recording permission of recorded file, watch the permissions such as permission, deletion, be easy to cause operator
Passive situation leverages control of the operator to PVR set-top box service.
Summary of the invention
The purpose of the embodiment of the present invention is to propose a kind of method and device for recording program, it is intended to it is passive to solve operator
Receive the problem of recording program.
For this purpose, the embodiment of the present invention uses following technical scheme:
In a first aspect, a kind of method for recording program, which comprises
The transport stream TS that receiving front-end issues, the TS include network information table NIT, include presetting in the NIT
Private setting descriptor PRD, the PRD is for describing performance recording information；
In the case where set-top box is opened, the NIT is parsed, obtains performance recording information；
Program is recorded according to the performance recording information.
Preferably, the performance recording information includes PRD version number prd_version_number, records program PID
Record_PID, identifier can_record whether is recorded, program broadcasting time record_play_times is recorded, records section
Mesh validity period record_validtime, permission command character record_control and/or reserved field reserved_ is recorded
future_use；
The PRD version number is used for the PRD version number being arranged in the TS；
The file recorded program PID and be used for unique identification performance recording, the recording program PID includes for identifying
The transport_stream_id of the TS, the original_network_id for identifying primitive network, for identifying net
The network_id of network, the service_id for identification service and/or the event_id for identified event；
The identifier of whether recording for indicating whether program can allow for recording, 0 indicates that recording, 1 is not allowed to indicate
Allow to record, alternatively, 1 indicates that recording, 0 is allowed to indicate not allow to record；
The broadcasting time recorded program broadcasting time and be used to be arranged performance recording permission；
It is described to record program validity period for the broadcasting validity period of performance recording permission to be arranged；
The deletion or renaming or the rule of sequence, method recorded permission command character and be used to be arranged performance recording
And permission；
The field that the reserved field is used for the reserved following extension.
Preferably, the parsing NIT, obtains performance recording information, comprising:
It locks default frequency point and demodulates the TS, parse the NIT and obtain frequency point information, successively according to the frequency point information
Frequency locking simultaneously demodulates；
Program Association Table PAT is parsed, the PID of Program Map Table PMT relevant to program is obtained；
The PMT is parsed according to the PID, obtains program clock reference PID and audio-video PID；
It parses SDT Service Description Table SDT and obtains Business Name information, parse the PRD；
Performance recording information after storing and resolving.
It is described that program is recorded according to the performance recording information, comprising:
The PRD version number is searched, is compared with pre-stored data, obtains latest edition according to the result of the comparison
This；
If the identifier of whether recording indicates that program does not allow to record, terminate to record；
If the identifier of whether recording indicates that program allows to record, according to the performance recording information after the parsing of storage
Record program.
Preferably, described to parse the NIT in the case where set-top box is opened, obtain performance recording information, comprising:
After set-top box unlatching, in the case where carrying out thread detection, the record_control is parsed.
It is described that program is recorded according to the performance recording information, comprising:
Corresponding operational order is sent to the set-top box according to the record_control.
Preferably, after the recording program according to the performance recording information, further includes:
After set-top box unlatching, in the case where carrying out thread detection, if the performance recording information after parsing is institute
It states and records the program validity period record_validtime and recording program broadcasting time record_play_times, then root
According to the recording program validity period and the recording program broadcasting time, the program after recording is played out.
It is described according to the recording program validity period and the recording program broadcasting time, the program after recording is broadcast
It puts, comprising:
It detects and judges whether before the deadline to record program；
If the recording program not within the recording program validity period, is terminated to the playback operation for having recorded program；
If the recording program within the recording program validity period, detects and judges the recording program broadcasting time
Whether 0 is greater than；
If the recording program broadcasting time is greater than 0, it is primary to have recorded program described in every normal playback, then by the record
The value of program broadcasting time processed successively decreases 1.
Second aspect, a kind of recording section destination device, described device include:
Receiving module, for the transport stream TS that receiving front-end issues, the TS includes network information table NIT, in the NIT
Including pre-set private setting descriptor PRD, the PRD is for describing performance recording information；
Parsing module obtains performance recording information for parsing the NIT in the case where set-top box is opened；
Module is recorded, for recording program according to the performance recording information.
Preferably, the performance recording information includes PRD version number prd_version_number, records program PID
Record_PID, identifier can_record whether is recorded, program broadcasting time record_play_times is recorded, records section
Mesh validity period record_validtime, permission command character record_control and/or reserved field reserved_ is recorded
future_use；
The PRD version number is used for the PRD version number being arranged in the TS；
The file recorded program PID and be used for unique identification performance recording, the recording program PID includes for identifying
The transport_stream_id of the TS, the original_network_id for identifying primitive network, for identifying net
The network_id of network, the service_id for identification service and/or the event_id for identified event；
The identifier of whether recording for indicating whether program can allow for recording, 0 indicates that recording, 1 is not allowed to indicate
Allow to record, alternatively, 1 indicates that recording, 0 is allowed to indicate not allow to record；
The broadcasting time recorded program broadcasting time and be used to be arranged performance recording permission；
It is described to record program validity period for the broadcasting validity period of performance recording permission to be arranged；
The deletion or renaming or the rule of sequence, method recorded permission command character and be used to be arranged performance recording
And permission；
The field that the reserved field is used for the reserved following extension.
Preferably, the parsing module, is used for:
It locks default frequency point and demodulates the TS, parse the NIT and obtain frequency point information, successively according to the frequency point information
Frequency locking simultaneously demodulates；
Program Association Table PAT is parsed, the PID of Program Map Table PMT relevant to program is obtained；
The PMT is parsed according to the PID, obtains program clock reference PID and audio-video PID；
It parses SDT Service Description Table SDT and obtains Business Name information, parse the PRD；
Performance recording information after storing and resolving.
The recording module, is used for:
The PRD version number is searched, is compared with pre-stored data, obtains latest edition according to the result of the comparison
This；
If the identifier of whether recording indicates that program does not allow to record, terminate to record；
If the identifier of whether recording indicates that program allows to record, according to the performance recording information after the parsing of storage
Record program.
Preferably, the parsing module, is used for:
After set-top box unlatching, in the case where carrying out thread detection, the record_control is parsed.
The recording module, is used for:
Corresponding operational order is sent to the set-top box according to the record_control.
Preferably, described device further include:
Playing module is used for after set-top box unlatching, in the case where carrying out thread detection, if the program after parsing
Recorded information is the recording program validity period record_validtime and recording program broadcasting time record_
Play_times carries out the program after recording then according to the recording program validity period and the recording program broadcasting time
It plays.
The playing module, is used for:
It detects and judges whether before the deadline to record program；
If the recording program not within the recording program validity period, is terminated to the playback operation for having recorded program；
If the recording program within the recording program validity period, detects and judges the recording program broadcasting time
Whether 0 is greater than；
If the recording program broadcasting time is greater than 0, it is primary to have recorded program described in every normal playback, then by the record
The value of program broadcasting time processed successively decreases 1.
The embodiment of the present invention provide it is a kind of record program method and device, the transport stream TS issued by receiving front-end,
The TS includes network information table NIT, includes pre-set private setting descriptor PRD in the NIT, the PRD is for describing
Performance recording information；In the case where set-top box is opened, the NIT is parsed, obtains performance recording information；According to the section directory
Information processed records program, to realize control of the front end to PVR, easy to operate, exploitativeness is strong, at low cost, without excessive
Hardware cost and human resources etc.；The production of set-top box manufacturer can preferably cooperate operator with the set-top box of front-end control PVR,
Improve product competitiveness.
Detailed description of the invention
Fig. 1 is the flow diagram for the method first embodiment that the embodiment of the present invention records program；
Fig. 2 is the flow diagram for the method second embodiment that the embodiment of the present invention records program；
Fig. 3 is the flow diagram for the method 3rd embodiment that the embodiment of the present invention records program；
Fig. 4 is the flow diagram for the method fourth embodiment that the embodiment of the present invention records program；
Fig. 5 is the flow diagram for the 5th embodiment of method that the embodiment of the present invention records program；
Fig. 6 is the flow diagram for the method sixth embodiment that the embodiment of the present invention records program；
Fig. 7 is the flow diagram for the 7th embodiment of method that the embodiment of the present invention records program；
Fig. 8 is the functional block diagram that the embodiment of the present invention records section destination device.
Specific embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
Locate described specific embodiment and is used only for explaining the embodiment of the present invention, rather than the restriction to the embodiment of the present invention.In addition also
It should be noted that only parts related to embodiments of the present invention are shown rather than entire infrastructure for ease of description, in attached drawing.
Embodiment one
It is the flow diagram for the method first embodiment that the embodiment of the present invention records program with reference to Fig. 1, Fig. 1.
In example 1, the method for recording program includes:
Step 101, the transport stream TS that receiving front-end issues, the TS include network information table NIT, include in the NIT
Pre-set private setting descriptor PRD, the PRD are for describing performance recording information；
Specifically, grouping private setting descriptor, the privately owned description of the grouping in the transport stream TS that front end plays, is added in operator
Symbol is deposited in the network information table NIT of PSI information, which provides included in the transport stream TS of its description
The overall information of the recording situation of program.Including PAT version number (pat_version_number), record program PID
(record_PID), whether record identifier (can_record), record program broadcasting time (record_play_times),
It records program validity period (record_validtime), record permission command character (record_control), reserved field
(reserved_future_use) etc..
Customized private setting descriptor performance recording descriptor PRD effect is similar to MPEG-2 system layer standard (standard No.
ISO/IEC 13818-1) defined in Program Association Table (PAT), meet the PSI-SI information norm in DVB standard.
Wherein, the performance recording information includes PRD version number prd_version_number, records program PID
Record_PID, identifier can_record whether is recorded, program broadcasting time record_play_times is recorded, records section
Mesh validity period record_validtime, permission command character record_control and/or reserved field reserved_ is recorded
future_use；
The PRD version number is used for the PRD version number being arranged in the TS；
The file recorded program PID and be used for unique identification performance recording, the recording program PID includes for identifying
The transport_stream_id of the TS, the original_network_id for identifying primitive network, for identifying net
The network_id of network, the service_id for identification service and/or the event_id for identified event；
The identifier of whether recording for indicating whether program can allow for recording, 0 indicates that recording, 1 is not allowed to indicate
Allow to record, alternatively, 1 indicates that recording, 0 is allowed to indicate not allow to record；
The broadcasting time recorded program broadcasting time and be used to be arranged performance recording permission；
It is described to record program validity period for the broadcasting validity period of performance recording permission to be arranged；
The deletion or renaming or the rule of sequence, method recorded permission command character and be used to be arranged performance recording
And permission；
The field that the reserved field is used for the reserved following extension.
Specifically, the syntactic definition of the performance recording descriptor PRD (program_record_descriptor) is such as
Under:
Step 102, in the case where set-top box is opened, the NIT is parsed, obtains performance recording information；
Specifically, terminal parses the NIT in the case where set-top box is opened, the performance recording letter for including in NIT is obtained
Breath.
Step 103, program is recorded according to the performance recording information.
Specifically, terminal carries out recording program according to the performance recording information after parsing.
The embodiment of the present invention provides a kind of method for recording program, the transport stream TS issued by receiving front-end, the TS
It include pre-set private setting descriptor PRD in the NIT, the PRD is for describing section directory including network information table NIT
Information processed；In the case where set-top box is opened, the NIT is parsed, obtains performance recording information；According to the performance recording information
Record program, to realize control of the front end to PVR, easy to operate, exploitativeness is strong, at low cost, without excessive hardware at
This and human resources etc.；The production of set-top box manufacturer can preferably cooperate operator with the set-top box of front-end control PVR, improve and produce
Product competitiveness.
Embodiment two
It is the flow diagram for the method second embodiment that the embodiment of the present invention records program with reference to Fig. 2, Fig. 2.
In example 2, the method for recording program includes:
Step 201, the transport stream TS that receiving front-end issues, the TS include network information table NIT, include in the NIT
Pre-set private setting descriptor PRD, the PRD are for describing performance recording information；
Step 202, it in the case where set-top box is opened, locks default frequency point and demodulates the TS, parse the NIT and obtain
Frequency point information successively frequency locking and is demodulated according to the frequency point information；Program Association Table PAT is parsed, section relevant to program is obtained
The PID of mesh mapping table PMT；The PMT is parsed according to the PID, obtains program clock reference PID and audio-video PID；Parse industry
Business description table SDT obtains Business Name information, parses the PRD；Performance recording information after storing and resolving；
Step 203, the PRD version number is searched, is compared with pre-stored data, obtains according to the result of the comparison
Latest edition；
Step 204, if the identifier of whether recording indicates that program does not allow to record, terminate to record；
Step 205, if the identifier of whether recording indicates that program allows to record, according to the program after the parsing of storage
Recorded information records program.
The embodiment of the present invention provides a kind of method for recording program, the transport stream TS issued by receiving front-end, the TS
It include pre-set private setting descriptor PRD in the NIT, the PRD is for describing section directory including network information table NIT
Information processed；In the case where set-top box is opened, the NIT is parsed, obtains performance recording information；The PRD version number is searched, with
Pre-stored data are compared, and obtain latest edition according to the result of the comparison；If the identifier of whether recording indicates section
Mesh does not allow to record, then terminates to record；If the identifier of whether recording indicates that program allows to record, according to the parsing of storage
Performance recording information afterwards records program, to realize control of the front end to PVR, easy to operate, exploitativeness is strong, cost
It is low, without excessive hardware cost and human resources etc.；Set-top box manufacturer set-top box of the production with front-end control PVR can be preferably
Cooperate operator, improves product competitiveness.
Embodiment three
It is the flow diagram for the method 3rd embodiment that the embodiment of the present invention records program with reference to Fig. 3, Fig. 3.
In the third embodiment, the method for recording program includes:
Step 301, the transport stream TS that receiving front-end issues, the TS include network information table NIT, include in the NIT
Pre-set private setting descriptor PRD, the PRD are for describing performance recording information；
Step 302, after set-top box unlatching, in the case where carrying out thread detection, the record_ is parsed
control；
Step 303, corresponding operational order is sent to the set-top box according to the record_control.
Specifically, to correspond to different operational orders as follows by different record_control:
The embodiment of the present invention provides a kind of method for recording program, the transport stream TS that receiving front-end issues, and the TS includes
It include pre-set private setting descriptor PRD in network information table NIT, the NIT, the PRD is for describing performance recording letter
Breath；After set-top box unlatching, in the case where carrying out thread detection, the record_control is parsed；According to described
Record_control sends corresponding operational order to the set-top box, so that control of the front end to PVR is realized, to certain
Whether the setting of specific program copyright allows to record and delete permission, to protecting such specific program copyright etc. to have great significance.
Example IV
It is the flow diagram for the method fourth embodiment that the embodiment of the present invention records program with reference to Fig. 4, Fig. 4.
On the basis of embodiment one to three, on the basis of example 1, the method for recording program is also
Including step 404:
Step 401, the transport stream TS that receiving front-end issues, the TS include network information table NIT, include in the NIT
Pre-set private setting descriptor PRD, the PRD are for describing performance recording information；
Step 402, in the case where set-top box is opened, the NIT is parsed, obtains performance recording information；
Step 403, program is recorded according to the performance recording information；
Step 404, after set-top box unlatching, in the case where carrying out thread detection, if the performance recording after parsing
Information is the recording program validity period record_validtime and recording program broadcasting time record_play_
Times plays out the program after recording then according to the recording program validity period and the recording program broadcasting time.
Preferably, described according to the recording program validity period and the recording program broadcasting time, to the section after recording
Mesh plays out, comprising:
It detects and judges whether before the deadline to record program；
If the recording program not within the recording program validity period, is terminated to the playback operation for having recorded program；
If the recording program within the recording program validity period, detects and judges the recording program broadcasting time
Whether 0 is greater than；
If the recording program broadcasting time is greater than 0, it is primary to have recorded program described in every normal playback, then by the record
The value of program broadcasting time processed successively decreases 1.
Specifically, the above method is expressed as follows with code:
So as follows for the quick-reading flow sheets of original recorded program playback:
It is as follows for the quick-reading flow sheets of improved recorded program playback:
Wherein:
Descriptor_tag: descriptor tag, 8bit field, for identifying different descriptors.It is defined herein as
0x80 (inside SI specification, provides the descriptor tag that 0x80-0xFE is user's self-defining), indicates that the descriptor is program
Descriptor is recorded, is the unique identification of performance recording descriptor.
Descriptor_length: descriptor length, 8bit field provide the byte number of descriptor after the field.
PCR_PID: program clock reference PID, 13bit field, for providing the section for the business that service_id is identified
The mark of transport stream (TS) packet where mesh clock reference.
Video_type/audio_type: stream type, 8bit field, for identifying the type of basic flow.Specific value point
With the explanation referring to Program Map Table (PMT) corresponding field in MPEG-2 system layer standard (standard No. ISO/IEC 13818-1).
Transport_stream_id: transport stream identification symbol, 16bit field, in a Transmission system, for identifying
A unique transport stream.
Original_network_id: original network identification symbol, 16bit field, for providing the net of original transmitted system
Network identifier.
Network_id: network identifier, 16bit field, for providing the network identifier of Transmission system.
Service_id: task identifier, 16bit field, in the transport stream described in program map descriptor (TS)
One business of unique identification.
Event_id: event ID, 16bit field, in the transport stream described in program map descriptor (TS) only
One one event of mark.
Control_id: permission command character: 4bit shares above-mentioned 8 kinds of situations.
The embodiment of the present invention provides a kind of method for recording program, the transport stream TS that receiving front-end issues, and the TS includes
It include pre-set private setting descriptor PRD in network information table NIT, the NIT, the PRD is for describing performance recording letter
Breath；In the case where set-top box is opened, the NIT is parsed, obtains performance recording information；It is recorded according to the performance recording information
Program；After set-top box unlatching, in the case where carrying out thread detection, if the performance recording information after parsing is the record
Program validity period record_validtime processed and the recording program broadcasting time record_play_times, then according to institute
It states and records program validity period and the recording program broadcasting time, the program after recording is played out, to realize front end
Control to PVR, easy to operate, exploitativeness is strong, at low cost, without excessive hardware cost and human resources etc.；Set-top box factory
Quotient's production can preferably cooperate operator with the set-top box of front-end control PVR, improve product competitiveness.
Embodiment five
It is the flow diagram for the 5th embodiment of method that the embodiment of the present invention records program with reference to Fig. 5, Fig. 5.
In embodiment five, the method for recording program includes:
Step 501, front end sends the TS with private setting descriptor to terminal and flows；
Step 502, set-top box is opened；
Step 503, terminal frequency locking parses；
Step 504, judge whether PRD version number is Advanced Edition；
Step 505, if so, terminal frequency locking and parsing；
Step 506, if it is not, after being then updated to highest version, to terminal frequency locking and parsing；
Step 507, judge whether to record whether character is 1；
Step 508, if 1, then can be performed it is normal record process, obtain transport_stream_id in transport stream,
original_network_id,network_id,service_id,event_id；Audio-video PID and audio/video flow type, section
Start to start normal recording after mesh clock reference PID etc..
Step 509, if 0, then do not start performance recording.
Embodiment six
It is the flow diagram for the method sixth embodiment that the embodiment of the present invention records program with reference to Fig. 6, Fig. 6.
In embodiment six, the method for recording program includes:
Step 601, front end sends the TS with private setting descriptor to terminal and flows；
Step 602, user opens set-top box；
Step 603, terminal thread detection operation；
Step 604, judge whether before the deadline；
Step 605, if so, judging whether broadcasting time is greater than 0；
Step 606, if so, normal playback process is primary, obtain transport stream in transport_stream_id,
original_network_id,network_id,service_id,event_id；Audio-video PID and audio/video flow type, section
Mesh clock reference PID etc..
Step 607, if not before the deadline, terminating playback recorded program；
Step 608, if broadcasting time is not more than 0, playback recorded program is terminated；
Step 609, broadcasting time is modified, broadcasting time is reduced 1.
Embodiment seven
It is the flow diagram for the 7th embodiment of method that the embodiment of the present invention records program with reference to Fig. 7, Fig. 7.
In embodiment 7, the method for recording program includes:
Step 701, front end sends the TS with private setting descriptor to terminal and flows；
Step 702, user opens set-top box；
Step 703, terminal thread detection operation；
Step 704, permission command character (controlid) is identified, different cotrolid has different instructions to set-top box.
Embodiment eight
It is a kind of the functional block diagram for recording section destination device provided in an embodiment of the present invention with reference to Fig. 8, Fig. 8.
In embodiment eight, the recording section destination device includes:
Receiving module 801, for the transport stream TS that receiving front-end issues, the TS includes network information table NIT, described
It include pre-set private setting descriptor PRD in NIT, the PRD is for describing performance recording information；
Wherein, the performance recording information includes PRD version number prd_version_number, records program PID
Record_PID, identifier can_record whether is recorded, program broadcasting time record_play_times is recorded, records section
Mesh validity period record_validtime, permission command character record_control and/or reserved field reserved_ is recorded
future_use；
The PRD version number is used for the PRD version number being arranged in the TS；
The file recorded program PID and be used for unique identification performance recording, the recording program PID includes for identifying
The transport_stream_id of the TS, the original_network_id for identifying primitive network, for identifying net
The network_id of network, the service_id for identification service and/or the event_id for identified event；
The identifier of whether recording for indicating whether program can allow for recording, 0 indicates that recording, 1 is not allowed to indicate
Allow to record, alternatively, 1 indicates that recording, 0 is allowed to indicate not allow to record；
The broadcasting time recorded program broadcasting time and be used to be arranged performance recording permission；
It is described to record program validity period for the broadcasting validity period of performance recording permission to be arranged；
The deletion or renaming or the rule of sequence, method recorded permission command character and be used to be arranged performance recording
And permission；
The field that the reserved field is used for the reserved following extension.
Parsing module 802 obtains performance recording information for parsing the NIT in the case where set-top box is opened；
Preferably, the parsing module 802, is used for:
It locks default frequency point and demodulates the TS, parse the NIT and obtain frequency point information, successively according to the frequency point information
Frequency locking simultaneously demodulates；
Program Association Table PAT is parsed, the PID of Program Map Table PMT relevant to program is obtained；
The PMT is parsed according to the PID, obtains program clock reference PID and audio-video PID；
It parses SDT Service Description Table SDT and obtains Business Name information, parse the PRD；
Performance recording information after storing and resolving.
Preferably, the parsing module 802, is used for:
After set-top box unlatching, in the case where carrying out thread detection, the record_control is parsed.
Module 803 is recorded, for recording program according to the performance recording information.
Preferably, the recording module 803, is used for:
The PRD version number is searched, is compared with pre-stored data, obtains latest edition according to the result of the comparison
This；
If the identifier of whether recording indicates that program does not allow to record, terminate to record；
If the identifier of whether recording indicates that program allows to record, according to the performance recording information after the parsing of storage
Record program.
Preferably, the recording module 803, is used for:
Corresponding operational order is sent to the set-top box according to the record_control.
Preferably, described device further include:
Playing module is used for after set-top box unlatching, in the case where carrying out thread detection, if the program after parsing
Recorded information is the recording program validity period record_validtime and recording program broadcasting time record_
Play_times carries out the program after recording then according to the recording program validity period and the recording program broadcasting time
It plays.
Preferably, the playing module, is used for:
It detects and judges whether before the deadline to record program；
If the recording program not within the recording program validity period, is terminated to the playback operation for having recorded program；
If the recording program within the recording program validity period, detects and judges the recording program broadcasting time
Whether 0 is greater than；
If the recording program broadcasting time is greater than 0, it is primary to have recorded program described in every normal playback, then by the record
The value of program broadcasting time processed successively decreases 1.
The embodiment of the present invention provides a kind of recording section destination device, the transport stream TS issued by receiving front-end, the TS
It include pre-set private setting descriptor PRD in the NIT, the PRD is for describing section directory including network information table NIT
Information processed；In the case where set-top box is opened, the NIT is parsed, obtains performance recording information；According to the performance recording information
Record program, to realize control of the front end to PVR, easy to operate, exploitativeness is strong, at low cost, without excessive hardware at
This and human resources etc.；The production of set-top box manufacturer can preferably cooperate operator with the set-top box of front-end control PVR, improve and produce
Product competitiveness.
Describe the technical principle of the embodiment of the present invention in conjunction with specific embodiments above.These descriptions are intended merely to explain this
The principle of inventive embodiments, and it cannot be construed to the limitation to protection scope of the embodiment of the present invention in any way.Based on herein
Explanation, those skilled in the art, which does not need to pay for creative labor, can associate the other specific of the embodiment of the present invention
Embodiment, these modes are fallen within the protection scope of the embodiment of the present invention.
Claims (8)
1. a kind of method for recording program, which is characterized in that the described method includes:
The transport stream TS that receiving front-end issues, the TS include network information table NIT, include pre-set private in the NIT
Symbol PRD, the PRD are described for describing performance recording information；
In the case where set-top box is opened, the NIT is parsed, obtains performance recording information；
Program is recorded according to the performance recording information；
Wherein, PRD version number prd_version_number, whether record identifier can_record and be included in the section directory
In information processed；
The parsing NIT, obtains performance recording information, comprising:
It locks default frequency point and simultaneously demodulates the TS, parse the NIT and obtain frequency point information, according to the frequency point information successively frequency locking
And it demodulates；
Program Association Table PAT is parsed, the PID of Program Map Table PMT relevant to program is obtained；
The PMT is parsed according to the PID, obtains program clock reference PID and audio-video PID；
It parses SDT Service Description Table SDT and obtains Business Name information, parse the PRD；
Performance recording information after storing and resolving；
It is described that program is recorded according to the performance recording information, comprising:
The PRD version number is searched, is compared with pre-stored data, obtains latest edition according to the result of the comparison；
If the identifier of whether recording indicates that program does not allow to record, terminate to record；
If the identifier of whether recording indicates that program allows to record, recorded according to the performance recording information after the parsing of storage
Program.
2. the method according to claim 1, wherein the performance recording information includes PRD version number prd_
Version_number, program PID record_PID is recorded, identifier can_record whether is recorded, records program broadcasting time
Number record_play_times, it records program validity period record_validtime, record permission command character record_
Control and/or reserved field reserved_future_use；
The PRD version number is used for the PRD version number being arranged in the TS；
The file recorded program PID and be used for unique identification performance recording, the recording program PID include described for identifying
The transport_stream_id of TS, the original_network_id for identifying primitive network, for identifying network
Network_id, the service_id for identification service and/or the event_id for identified event；
The identifier of whether recording for indicating whether program can allow for recording, 0 indicates that recording, 1 is not allowed to indicate to allow
It records, alternatively, 1 indicates that recording, 0 is allowed to indicate not allow to record；
The broadcasting time recorded program broadcasting time and be used to be arranged performance recording permission；
It is described to record program validity period for the broadcasting validity period of performance recording permission to be arranged；
The deletion or renaming or the rule of sequence, method and power recorded permission command character and be used to be arranged performance recording
Limit；
The field that the reserved field is used for the reserved following extension.
3. according to the method described in claim 2, it is characterized in that, described in the case where set-top box is opened, described in parsing
NIT obtains performance recording information, comprising:
After set-top box unlatching, in the case where carrying out thread detection, the record_control is parsed；
It is described that program is recorded according to the performance recording information, comprising:
Corresponding operational order is sent to the set-top box according to the record_control.
4. according to claim 1 to method described in 3 any one, which is characterized in that described according to the performance recording information
After recording program, further includes:
After set-top box unlatching, in the case where carrying out thread detection, if the performance recording information after parsing is the record
Program validity period record_validtime processed and the recording program broadcasting time record_play_times, then according to institute
It states and records program validity period and the recording program broadcasting time, the program after recording is played out；
It is described that the program after recording is played out according to the recording program validity period and the recording program broadcasting time,
Include:
It detects and judges whether before the deadline to record program；
If the recording program not within the recording program validity period, is terminated to the playback operation for having recorded program；
If the recording program within the recording program validity period, detects and whether judges the recording program broadcasting time
Greater than 0；
If the recording program broadcasting time is greater than 0, it is primary to have recorded program described in every normal playback, then by recordings section
The value of mesh broadcasting time successively decreases 1.
5. a kind of recording saves destination device, which is characterized in that described device includes:
Receiving module, for the transport stream TS that receiving front-end issues, the TS includes network information table NIT, includes in the NIT
Pre-set private setting descriptor PRD, the PRD are for describing performance recording information；
Parsing module obtains performance recording information for parsing the NIT in the case where set-top box is opened；
Module is recorded, for recording program according to the performance recording information；
Wherein, PRD version number prd_version_number, whether record identifier can_record and be included in the section directory
In information processed；
The parsing module, is used for:
It locks default frequency point and simultaneously demodulates the TS, parse the NIT and obtain frequency point information, according to the frequency point information successively frequency locking
And it demodulates；
Program Association Table PAT is parsed, the PID of Program Map Table PMT relevant to program is obtained；
The PMT is parsed according to the PID, obtains program clock reference PID and audio-video PID；
It parses SDT Service Description Table SDT and obtains Business Name information, parse the PRD；
Performance recording information after storing and resolving；
The recording module, is used for:
The PRD version number is searched, is compared with pre-stored data, obtains latest edition according to the result of the comparison；
If the identifier of whether recording indicates that program does not allow to record, terminate to record；
If the identifier of whether recording indicates that program allows to record, recorded according to the performance recording information after the parsing of storage
Program.
6. device according to claim 5, which is characterized in that the performance recording information includes PRD version number prd_
Version_number, program PID record_PID is recorded, identifier can_record whether is recorded, records program broadcasting time
Number record_play_times, it records program validity period record_validtime, record permission command character record_
Control and/or reserved field reserved_future_use；
The PRD version number is used for the PRD version number being arranged in the TS；
The file recorded program PID and be used for unique identification performance recording, the recording program PID include described for identifying
The transport_stream_id of TS, the original_network_id for identifying primitive network, for identifying network
Network_id, the service_id for identification service and/or the event_id for identified event；
The identifier of whether recording for indicating whether program can allow for recording, 0 indicates that recording, 1 is not allowed to indicate to allow
It records, alternatively, 1 indicates that recording, 0 is allowed to indicate not allow to record；
The broadcasting time recorded program broadcasting time and be used to be arranged performance recording permission；
It is described to record program validity period for the broadcasting validity period of performance recording permission to be arranged；
The deletion or renaming or the rule of sequence, method and power recorded permission command character and be used to be arranged performance recording
Limit；
The field that the reserved field is used for the reserved following extension.
7. device according to claim 6, which is characterized in that the parsing module is used for:
After set-top box unlatching, in the case where carrying out thread detection, the record_control is parsed；
The recording module, is used for:
Corresponding operational order is sent to the set-top box according to the record_control.
8. according to device described in claim 5 to 7 any one, which is characterized in that described device further include:
Playing module is used for after set-top box unlatching, in the case where carrying out thread detection, if the performance recording after parsing
Information is the recording program validity period record_validtime and recording program broadcasting time record_play_
Times plays out the program after recording then according to the recording program validity period and the recording program broadcasting time；
The playing module, is used for:
It detects and judges whether before the deadline to record program；
If the recording program not within the recording program validity period, is terminated to the playback operation for having recorded program；
If the recording program within the recording program validity period, detects and whether judges the recording program broadcasting time
Greater than 0；
If the recording program broadcasting time is greater than 0, it is primary to have recorded program described in every normal playback, then by recordings section
The value of mesh broadcasting time successively decreases 1.
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| CN201610293174.0A CN105916009B (en) | 2016-05-04 | 2016-05-04 | A kind of method and device for recording program |
| PCT/CN2017/082909 WO2017190661A1 (en) | 2016-05-04 | 2017-05-03 | Method and apparatus for recording program |
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| CN201610293174.0A CN105916009B (en) | 2016-05-04 | 2016-05-04 | A kind of method and device for recording program |
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| CN105916009B (en) * | 2016-05-04 | 2019-07-12 | 深圳创维数字技术有限公司 | A kind of method and device for recording program |
| CN112738615A (en) * | 2020-12-25 | 2021-04-30 | 深圳市九洲电器有限公司 | Program acquisition method and device, set top box and front-end server |
| CN114866798B (en) * | 2022-05-10 | 2024-01-02 | 杭州国芯科技股份有限公司 | Method for rapidly acquiring programs in DVB network |
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| CN104811808A (en) * | 2015-03-20 | 2015-07-29 | 四川长虹电器股份有限公司 | Full-network set top box software air-upgrading monitoring triggering method |
| CN105163133A (en) * | 2015-07-07 | 2015-12-16 | 深圳Tcl数字技术有限公司 | Program information playing method and device |
| CN105323644A (en) * | 2015-10-14 | 2016-02-10 | 四川长虹电器股份有限公司 | Method for checking playback authorization of program recorded by digital television |
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| CN102547446B (en) * | 2012-01-04 | 2015-12-16 | 深圳创维数字技术有限公司 | A kind of digital television program recording guard method, system and digital TV terminal |
| US9820011B2 (en) * | 2014-10-14 | 2017-11-14 | Verizon Patent And Licensing Inc. | Detecting and preventing false television viewership |
| CN105916009B (en) * | 2016-05-04 | 2019-07-12 | 深圳创维数字技术有限公司 | A kind of method and device for recording program |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104811808A (en) * | 2015-03-20 | 2015-07-29 | 四川长虹电器股份有限公司 | Full-network set top box software air-upgrading monitoring triggering method |
| CN105163133A (en) * | 2015-07-07 | 2015-12-16 | 深圳Tcl数字技术有限公司 | Program information playing method and device |
| CN105323644A (en) * | 2015-10-14 | 2016-02-10 | 四川长虹电器股份有限公司 | Method for checking playback authorization of program recorded by digital television |
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| WO2017190661A1 (en) | 2017-11-09 |
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