CN108495176B - PVR (personal video recorder) recording method and system and television - Google Patents
PVR (personal video recorder) recording method and system and television Download PDFInfo
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- CN108495176B CN108495176B CN201810235284.0A CN201810235284A CN108495176B CN 108495176 B CN108495176 B CN 108495176B CN 201810235284 A CN201810235284 A CN 201810235284A CN 108495176 B CN108495176 B CN 108495176B
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000008569 process Effects 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 abstract description 12
- 238000001824 photoionisation detection Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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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
- H04N21/4334—Recording operations
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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
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The application provides a PVR recording method, a system and a television, which are used for recording television programs, wherein the PVR recording method comprises the steps of monitoring whether a television EIT contains a common event or not in the television program recording process; and when the common event is included, controlling the TUNER frequency locking to the frequency point according to the frequency point of the channel to which the television program belongs in the common event. The PVR recording method, the PVR recording system and the television set provided by the application judge whether the television EIT contains a common event or not through real-time monitoring of the television EIT, and when the frequency point of the affiliated frequency channel of the television program being recorded changes, the change of the frequency point and the control of TUNER frequency locking are found in time, so that discontinuity or incompleteness of the television program recording caused by the change of the frequency point corresponding to the frequency point of the frequency point is effectively avoided.
Description
Technical Field
The present application relates to the field of digital television technologies, and in particular, to a PVR recording method and system, and a television.
Background
PVR (Personal video recorder) recording technology is widely applied to televisions, and if a PVR recording unit is arranged inside a television, broadcast signals sent by a broadcasting station can be stored on a storage device of the television. When a user has a requirement for recording a television program, a recording command is set, a PVR recording unit in the television can record the television program which is being played or reserve to record the television program to be played, and the PVR recording unit is automatically started to record the television program when the playing time of the television program is up.
When a television starts a PVR recording unit to record a television Program, the PVR recording unit acquires a frequency point of a channel to which the Program to be recorded belongs according to a television Program recording command, locks the frequency point, receives waveform data corresponding to the frequency point, analyzes a Program Map Table (PMT) of the waveform data corresponding to the frequency point, analyzes a Packet Identifier (PID) related to the television Program to be recorded from the PMT, sets all analyzed PIDs of the television Program to be recorded into a DEMUX (Demultiplexer), and moves and filters audio, video, subtitle and other data of the television Program to be recorded onto a television storage device according to the PIDs of the television Program to be recorded after the recording is started. In the process of executing television program recording, the PVR recording unit needs to lock the frequency point of the channel to which the television program to be recorded belongs.
However, in the process of recording the television program, the frequency point to which the television program to be recorded belongs may change; when common events such as 'emergency broadcast' are inserted, the frequency point of the channel to which the television program belongs changes. When the frequency point to which the television program belongs changes, the recorded television program may be jammed, mosaic, black screen for a period of time, and the like, and even the recording of the television program is suspended, that is, the recording of the television program is incomplete.
Disclosure of Invention
The application provides a PVR recording method, a system and a television, which can ensure the continuity and the integrity of the recording of a television program when the frequency point of the channel to which the television program being recorded belongs is changed.
In a first aspect, the present application provides a PVR recording method, including:
monitoring whether a common event is contained in the television EIT or not in the television program recording process;
and when the common event is included, controlling the TUNER frequency locking to the frequency point according to the frequency point of the channel to which the television program belongs in the common event.
In a second aspect, the present application further provides a PVR recording system, comprising:
the television EIT monitoring module is used for monitoring whether the television EIT contains a common event or not in the television program recording process;
and the frequency point locking module is used for controlling the TUNER frequency locking to the frequency point according to the frequency point of the channel to which the television program belongs in the common event when the common event is included.
In a third aspect, the present application further provides a television set, where the television set includes the PVR recording system described in any one of the above.
The PVR recording method, the PVR recording system and the television are used for recording television programs, in the television program recording process, the television EIT is monitored, whether the detected television EIT contains a common event or not is judged, when the fact that the detected television EIT contains the common event is monitored, a frequency point of a channel where the television program is recorded in the common event is obtained, and the TUNER frequency locking is controlled to the frequency point. Therefore, in the application, whether the common event is contained in the television EIT is judged by monitoring the television EIT in real time, when the frequency point of the affiliated frequency channel of the television program being recorded changes, the change of the frequency point and the control of TUNER frequency locking are found in time, and discontinuity or incompleteness of the television program recording caused by the change of the frequency point corresponding to the frequency channel is effectively avoided.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a basic flowchart of a PVR recording method according to an embodiment of the present disclosure;
fig. 2 is a block diagram of a PVR recording system according to an embodiment of the present application;
fig. 3 is a structural diagram of a television according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a flowchart of a PVR recording method according to an embodiment of the present disclosure, where the method may be used in a digital television recording device, such as a television or a set-top box capable of performing digital television recording. As shown in fig. 1, the PVR recording method includes the following steps.
S101: during the recording process of the television program, whether a common event is contained in the television EIT is monitored.
EIT is Event Information Table, which provides Information such as name, start time, time length, running state, etc. of Event in the TV playing process; common events are common events, such as inter-cut emergency broadcasts, etc., which include: the emergency broadcast of the inter cut occupies the frequency point of the channel being played, and the frequency point of the channel being played is converted into the appointed frequency point. Therefore, when a common event occurs, frequency point shift of the channel will occur, that is, the frequency point corresponding to the channel changes.
When the television starts the PVR recording unit to record the television program, the PVR recording unit acquires a frequency point of a channel to which the program to be recorded belongs according to a television program recording command, analyzes a PMT of the frequency point, analyzes a PID (proportion integration differentiation) related to the television program to be recorded from the PMT, and sets all analyzed PIDs of the television program to be recorded into a DEMUX (digital elevation model user). When the time for playing the television program is reached, the television program recording is started, and the DEMUX carries out filtering and storage on related audio, video, subtitles and the like of the television program according to the PID of the related television program arranged in the DEMUX. In the process of recording television programs, monitoring the television EIT, acquiring the television EIT in real time, judging whether the monitored EIT contains common events, and monitoring the frequency point change of a television channel by monitoring the common events in the television EIT.
Specifically, a thread is started, a television EIT is obtained in real time, whether the obtained television EIT contains a common event or not is judged, and the recording of the television program is finished.
If frequency point transfer of channel occurs
S102: and when the common event is included, controlling the TUNER frequency locking to the frequency point according to the frequency point of the channel to which the television program belongs in the common event.
When the fact that the television EIT comprises a common event is monitored, the change of the frequency point of the channel to which the television program which is being recorded belongs is indicated, and the TUNER (TUNER) is controlled to lock the frequency to the frequency point according to the frequency point of the channel to which the television program belongs in the common event which is being recorded.
Specifically, the method comprises the steps of controlling a frequency point of a channel to which a television program belongs in common event by TUNER frequency locking, acquiring a frequency point of a channel to which the television program belongs in the common event in the recording process, and controlling the TUNER frequency locking to the frequency point of the channel. Therefore, when the frequency point of the channel corresponding to the television program in the recording process is changed, the TUNER frequency locking is completed in time to record the new frequency point of the channel to which the television program belongs.
Therefore, in the PVR recording method provided by the application, whether the television EIT contains a common event or not is judged by monitoring the television EIT in real time, when the frequency point of the affiliated channel of the television program being recorded changes, the change of the frequency point is timely found, and the TUNER frequency locking is controlled to the frequency point, so that the phenomenon that the television program is recorded discontinuously or incompletely due to the change of the corresponding frequency point of the channel is effectively avoided.
In a specific embodiment of the present application, before locking the channel to the frequency point, the method further includes: and acquiring the frequency point of the channel to which the television program belongs in the common event, and judging whether the frequency point of the channel to which the television program belongs changes. And when the frequency point of the channel to which the television program belongs changes, locking the channel to the frequency point according to the frequency point of the channel to which the television program belongs in the common event.
When the fact that the television EIT comprises a common event is monitored, before the frequency point of the channel is re-locked, the frequency point of the channel to which the television program belongs in the common event is obtained, and whether the frequency point of the channel to which the television program belongs changes or not is judged. And judging whether the frequency point of the channel to which the television program belongs changes or not, so that the repeated frequency locking of the channel without changing the channel to which the television program belongs is avoided, and the resource saving is facilitated.
For example, when two or more television programs are being recorded, after the monitored EIT includes a common event, it may often happen that a certain channel corresponding to the recorded television program has a frequency point change, so that by determining whether the frequency point of the channel of the television program has a change, only the channel having the frequency point change is frequency re-locked, thereby avoiding frequency re-locking all channels corresponding to the television programs being recorded.
In a specific embodiment of the present application, the PVR recording method provided by the present application further includes: stopping the data filtering of the television program by the DEMUX when the common event is contained; and when the TUNER frequency locking is controlled to the frequency point, continuing the DEMUX to filter the data of the television program.
Specifically, when the monitored television EIT contains a common event, stopping the DEMUX to filter and write data such as audio, video, subtitles and the like of the television program being recorded into a television storage device; and after the channel frequency locking is finished, the recovery DEMUX filters and writes the data of the audio, the video, the subtitles and the like of the television program being recorded into the television storage equipment, and the recording of the television program is continued.
When the monitored television EIT contains a common event, before the frequency locking of the channel to which the television program belongs, the recording of the television program is paused, namely, the data of the paused television program is shifted and filtered; and when the channel to which the television program belongs is locked to the changed frequency point, the recording of the television program is recovered, namely the data migration and filtration of the television program are recovered. Therefore, the method can effectively avoid the interference of the intermediate frequency waveform signal entering a demodulator in the process of channel frequency locking, which causes the moving and writing of dirty data in the process of recording television programs, and causes the recorded television programs to have blockage, mosaic and black screen for a period of time. Therefore, the PVR recording method provided by the embodiment of the application can effectively ensure the quality of television program recording.
Further, in an embodiment of the present application, the PVR recording method provided by the present application further includes: when the common event is contained, stopping filtering the data of the television program by the DEMUX, and moving out the PID of the television program in the DEMUX; and after the TUNER frequency locking is controlled to the frequency point, setting the PID of the television program into the DEMUX again, and continuing the DEMUX to filter the data of the television program.
Specifically, when the monitored television EIT contains a common event, the DEMUX is paused to filter and write data such as audio, video, subtitles and the like of the television program which is being recorded into a television storage device, each PID related to the television program audio, video, subtitles and the like in the DEMUX is removed, and each PID of the television program audio, video, subtitles and the like is deleted from the DEMUX; after the channel frequency locking is finished, resetting each PID of the audio, the video, the caption and the like of the television program into the DEMUX, recovering the DEMUX, filtering the audio, the video, the caption and the like of the television program which is being recorded, writing the data into the television storage equipment, and continuing to record the television program. In a specific embodiment of the present application, when the PID of the television program is set to the DEMUX again, the PMT of the television program is acquired, the PID related to the television program is analyzed from the PMT, and the PID is set to the DEMUX. Therefore, the accuracy of the PID related to the television program data is effectively improved.
When the monitored television EIT contains common events, before the frequency locking of the channel to which the television program belongs, the recording of the television program is paused, the data of the paused television program is shifted and filtered, and each PID related to the audio, video, caption and the like of the television program in the DEMUX is deleted; and after the channel to which the television program belongs is locked to the changed frequency point, resetting all PIDs of the audio, the video, the subtitle and the like of the television program into the DEMUX, recovering the DEMUX, moving and filtering the data of the audio, the video, the subtitle and the like of the television program which is being recorded onto a television storage device, and continuing recording the television program. Therefore, the interference of the intermediate frequency waveform signals entering the demo in the channel frequency locking process is more effectively avoided, and the moving and writing of dirty data in the television program recording process are caused, so that the recorded television program is blocked, mosaics, a period of black screen and the like. Therefore, the PVR recording method provided by the embodiment of the application can more effectively ensure the quality of television program recording.
Based on the PVR recording method provided by the embodiment of the present application, the embodiment of the present application further provides a PVR recording system for a digital television recording device, and fig. 2 is a structural diagram of the PVR recording system. As shown in fig. 2, a PVR recording system provided in the embodiment of the present application includes:
the television EIT monitoring module 1 is used for monitoring whether the television EIT contains a common event or not in the television program recording process;
and the frequency point locking module 2 is used for controlling the TUNER frequency locking to the frequency point according to the frequency point of the channel to which the television program belongs in the common event when the common event is included.
In a specific implementation manner of this application, the PVR recording system provided in this application embodiment further includes: and the frequency point monitoring module is used for acquiring the frequency point of the channel to which the television program belongs in the common event and judging whether the frequency point of the channel to which the television program belongs changes.
Further, in a specific embodiment of the present application, the PVR recording system provided in an embodiment of the present application further includes: the data moving control module is used for stopping the data filtering of the television program by the DEMUX when the common event is contained; when the TUNER frequency locking is controlled to the frequency point, continuing the DEMUX to filter the data of the television program; or, the data moving control module is configured to, when a common event is included, stop filtering data of the television program by the DEMUX, and move out the PID of the television program in the DEMUX; and after the TUNER frequency locking is controlled to the frequency point, setting the PID of the television program into the DEMUX again, and continuing the DEMUX to filter the data of the television program.
In a specific embodiment of the present application, the data moving control module further includes a PID setting module, configured to acquire a PID in the PMT of the television program, and set the PID to the DEMUX.
Based on the PVR recording system provided in the embodiment of the present application, the embodiment of the present application further provides a television 3, as shown in fig. 3, the television 3 includes the PVR recording system provided in the above embodiment.
It should be noted that, in the present specification, all the embodiments are described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is mainly described as a difference from the other embodiments, and related parts may be referred to the part of the description of the method embodiment. Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (7)
1. A PVR recording method, the method comprising:
monitoring whether a common event is contained in a television EIT in the recording process of a television program, wherein the common event comprises a transfer frequency point of a channel to which the television program belongs;
when the common event is included, stopping the DEMUX from filtering the data of the television program and controlling the TUNER frequency locking to the frequency point according to the transfer frequency point of the channel to which the television program belongs in the common event;
when the TUNER frequency locking is controlled to the frequency point, continuing the DEMUX to filter the data of the television program;
and when the common event is not contained, continuing recording according to the frequency point of the television program.
2. The PVR recording method according to claim 1, wherein the method further comprises:
when the common event is contained, stopping filtering the data of the television program by the DEMUX, and moving out the PID of the television program in the DEMUX;
and after the TUNER frequency locking is controlled to the frequency point, setting the PID of the television program into the DEMUX again, and continuing the DEMUX to filter the data of the television program.
3. The PVR recording method according to claim 2, wherein said resetting the PID of the television program into the DEMUX comprises:
and acquiring the PID in the PMT of the television program, and setting the PID in the DEMUX.
4. A PVR recording system, the system comprising:
the television EIT monitoring module is used for monitoring whether the television EIT contains a common event in the recording process of the television program, wherein the common event comprises a transfer frequency point of a channel to which the television program belongs;
a frequency point locking module, which is used for controlling TUNER frequency locking to the frequency point according to the transfer frequency point of the channel of the television program in the common event when the common event is included;
the data moving control module is used for stopping the data filtering of the television program by the DEMUX when the common event is contained; when the TUNER frequency locking is controlled to the frequency point, continuing the DEMUX to filter the data of the television program;
and the PVR recording unit is used for continuously recording according to the frequency point of the television program when the common event is not contained.
5. The PVR recording system of claim 4, wherein the system further comprises:
the data moving control module is used for stopping the DEMUX from filtering the data of the television program when the common event is contained, and moving out the PID of the television program in the DEMUX; and after the TUNER frequency locking is controlled to the frequency point, setting the PID of the television program into the DEMUX again, and continuing the DEMUX to filter the data of the television program.
6. The PVR recording system of claim 5, wherein the data movement control module comprises:
and the PID setting module is used for acquiring the PID in the PMT of the television program and setting the PID in the DEMUX.
7. A television set, characterized in that it comprises a PVR recording system according to any of claims 4-6.
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| CN201810235284.0A CN108495176B (en) | 2018-03-21 | 2018-03-21 | PVR (personal video recorder) recording method and system and television |
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| CN201810235284.0A CN108495176B (en) | 2018-03-21 | 2018-03-21 | PVR (personal video recorder) recording method and system and television |
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| CN111131881B (en) * | 2019-12-30 | 2022-09-02 | 深圳Tcl数字技术有限公司 | PVR (personal video recorder) recording method, smart television and computer readable storage medium |
| CN112672215B (en) * | 2020-12-17 | 2021-12-21 | 四川长虹电器股份有限公司 | Method for filtering invalid television programs |
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| CN1622603A (en) * | 2003-11-27 | 2005-06-01 | 株式会社日立制作所 | Receiving device, display device and recording device |
| CN101179682A (en) * | 2006-11-09 | 2008-05-14 | 国际商业机器公司 | Method for detecting and processing interruptions in scheduled programs and digital recorder |
| CN101690187A (en) * | 2007-07-06 | 2010-03-31 | 佳能株式会社 | Broadcast program recording apparatus and control method for the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4865355B2 (en) * | 2006-02-21 | 2012-02-01 | キヤノン株式会社 | Broadcast receiving apparatus and method for controlling broadcast receiving apparatus |
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Patent Citations (4)
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|---|---|---|---|---|
| CN1344449A (en) * | 1999-11-22 | 2002-04-10 | 松下电器产业株式会社 | Program guide information generating/sending system |
| CN1622603A (en) * | 2003-11-27 | 2005-06-01 | 株式会社日立制作所 | Receiving device, display device and recording device |
| CN101179682A (en) * | 2006-11-09 | 2008-05-14 | 国际商业机器公司 | Method for detecting and processing interruptions in scheduled programs and digital recorder |
| CN101690187A (en) * | 2007-07-06 | 2010-03-31 | 佳能株式会社 | Broadcast program recording apparatus and control method for the same |
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